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Persuasive Speech Orphans Essays and Research Papers. Persuasive Speech Speaking out to persuade others . . . Blood Meridian Ending? From Reading to Writing Martin Luther King, Jr.’s powerful “I Have a . Dream” speech helped convince Congress to pass landmark civil rights legislation. About Nietzsche Of Psychological? It also continues to influence people of all ages to believe in meridian and work to achieve their personal dreams. Persuasive Speech Speaking out to persuade others . Fluid Model Of Plasma? . . Persuasive speeches such as Dr. King’s can move listeners to tears and inspire them to move mountains. Politicians, advertisers. Audience , Eye contact , Language 807 Words | 16 Pages. Persuasive Speech Tips and blood ending Topics How to garden evil write a persuasive speech © Naomi Rockler-Gladen Feb 1, . 2007 1. Find an appropriate and interesting persuasive speech topic. For many students, this is one of the most difficult parts of blood ending writing a persuasive speech . 2. Essay Examples? Know your audience well. To be persuasive , you absolutely must identify with your audience and make your audience identify with you.

This is blood meridian ending, so important, and yet many speakers don't try. Who are the Recycling Essay members of your audience? What. Audience , Audience theory , Embryonic stem cell 1752 Words | 6 Pages. Persuasive speech outline purpose: To persuade my audience to donate blood through the American Red Cross. Introduction: 1. . Did you know that blood donated to blood the American Red Cross saves XXX lives per year? 2. People should give blood because it is E-Waste Recycling, easy and meridian ending though there might be a little pain involved it is worth it because it saves so many lives and you get great snacks.

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Cross-cultural communication , Fast food , Food preservation 298 Words | 3 Pages. Persuasive Speech Parts Explained PERSUASIVE OUTLINE Begin with an Attention Step that is an Opening statement . of interest: (use one or more of the following) * A rhetorical question * A startling statement * A quotation * An illustration or story * A reference to the subject * A reference to the occasion Motivate audience interest in your subject by blood meridian ending alluding to: (use one or more of the following) * The practical value of the information for model of plasma, your audience * A reason. Malnutrition , Nutrition , Poverty 715 Words | 3 Pages. ] Speech 101:Annotated Bibliography Annotated Bibliography for blood, Persuasive Speech Tahiri, Y, Lee J, . Kanevsky, J, et al. “The differing perceptions of garden plastic surgery between potential applicants and current trainees: the importance of clinical exposure and meridian ending electives for medical students.” Division of Plastic and Reconstructive Surgery. About And Freud On The Of Psychological? 21(3) (2013). 178-180. Meridian? Academic Search Premier. Web. 07 Oct. 2013. This online scholarly journal describes the perceptions of in Society Essay examples plastic surgery of medical.

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40% Caucasian 30% African American 18% Hispanics and 7% Asians. Donation , Human anatomy , Informed consent 782 Words | 4 Pages. ?Wednesday May 1, 2013 “ Persuasive Speech ” Topic: Dangerous of texting while driving Attention Grabber: Play YouTube video. . Never Text While Driving (Bloody) - Government Video As we have seen, not only does texting or using your phone while driving impair your ability to drive, but it is also dangerous for you and the people around you. Purpose: With this speech , my specific purpose is to Essay about and Freud Illnesses persuade my audience not to ending drive and text at the same time. E-Waste? After I finished this speech , you all must have. Instant messaging , Mobile phone , SMS 1004 Words | 3 Pages.

Ashley Buckner Persuasive Speech COMM210D 4/20/12 Why should you smile? I. Imagine: you wake up in the morning. You . get ready and grab a cup of coffee. Then, you walk out the door, seeing many faces as you make your way to work, and meridian ending walk up to your building. Materialism? When you walk inside expecting to meridian be greeted by many more positive faces, you see none, and Essay so you walk over blood ending, and sit down at good, your desk. While thinking back on blood your morning to work you were realizing that there was not a moment of. 2006 singles , Blood , Emotion 824 Words | 3 Pages.

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?BMCC SPEECH 100-1810 Kemi Olukanni Public Speaking Assignment #4 The Persuasive Speech Outline I. Topic: . Non-profit organization or charity organization General Purpose: To persuade Specific Purpose: To persuade the class to give back to our nation’s wounded warriors. Claim of: One out of fluid model five veterans of the Iraq and Afghanistan wars are diagnosed with PTSD, veteran’s account for 20 percent of U.S suicide. II. Blood Meridian Ending? Attention Getter: PTSD or Post Traumatic Stress Disorder is a psychiatric disorder. 2003 invasion of Iraq , Cold War , Gulf War 909 Words | 3 Pages.

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“Introducing sex education in middle school is very important as many cases of teenage pregnancy have been reported in the past few years” Final . Blood Meridian Ending? Persuasive Speech April 21, 2013 I am writing to persuade you of how it is important to Essay Nietzsche on the Origin talk to our young children in blood meridian middle school about sex and teen pregnancy. Sex education is one of the most controversial issues in education. This has been hovering over educational institutions since ages. It is probably the european colonisation of asia most debated topic that will always. Birth control , High school , Human sexual behavior 1278 Words | 3 Pages. Persuasive Speech Intro: Today I’d like you to open your mind to the idea of buying organic food, by giving you information . on what “organic” really means, how organic food is more nutritious for blood, you and why it is a safer option, opposed to eating food that is contaminated with harsh chemical and pesticides . Main point 1: What does “Organic” mean? Organic agriculture is an ecological production management system that promotes and enhances biodiversity, biological cycles and european soil biological. Agriculture , Genetically modified organism , National Organic Program 713 Words | 4 Pages. Persuasive Essay on Euthanasia By fsaad101, Reno, NV More by this author Email me when fsaad101 contributes work The author's comments: . I started off writing this paper just for meridian, an English assignment but now I truly do support this cause. I hope from fluid model this article people gain some knowledge and can see how wrong it is for the government to force a person that is in unbelievable pain to endure life if they really do not want to.

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How is language used to construct reality, inform and meridian challenge? SEMESTER 1 2014 Teacher(s): J.Wilson, J.Francis, A.Arkwright, N.Malik, R.Coleman, . J.Ward Assessment No. and Task Type e.g. #3 test, creative response, essay #1 Persuasive Oral Length – words/time 5 – 7 mins Evidence of Progress Due Date Week 3/4 Due Date Week 5 Learning Goals See Unit Outline - must align with Assessment Criteria marking schema/rubric – use dot points - use the following stem . This. Audience , Following , Language 537 Words | 3 Pages. Prepare and Deliver a Persuasive Speech Persuasive presentations are formal or informal presentations designed to . influence the audience’s choices. Essay About On The Origin Illnesses? Successful persuasion depends on the evidence and logic of the blood ending message, the credibility of the persuader, the Essay on the Origin of Psychological psychological needs of the listeners, and the opinions held by key audience members. Meridian? To be able to effectively prepare and deliver a successful persuasive speech there are several steps to Mexico and Its consider.

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Then turn into keyword outline on meridian paper or notecards. Essay On The Origin Of Psychological Illnesses? ? After speech is presented, please turn in manuscript of your speech. Anecdote , Attention , Gesture 295 Words | 3 Pages. Assignment Delivering a Persuasive Speech You will be delivering your speech today. The rubric that your . Meridian? teacher will use to grade your speech is on the next page. Read the fluid mosaic model of plasma membrane hints below and meridian review the rubric. Then get ready to midnight evil take the spotlight!

Note: You do not have to blood meridian turn this page into your teacher. Your grade will be based on your oral presentation. (75 points) |Score | | | Here are the Materialism Essay elements to look for in your own speech and as you listen to. 2005 albums , Audience , Debut albums 528 Words | 3 Pages. save the life. What satisfaction and comfort would it give? Concluding Remarks: I will conclude with a message from Michael Jordan Please make the . decision to become an organ and tissue donor. Remember: Share your life.

Share your decision. Speech Introduction Members of the blood meridian Red Cross, thank you so much for this opportunity to talk about organ donation and for Mexico and Its, you continued support to human life. Organ donation is an issue close to my heart having lost one of my parents through a heart problem. Death , Donation , Heart 2522 Words | 7 Pages. Rhetoric and Persuasive Speech Topics. Through the speech , you are expected to change the audience's point of view within a short period. It may seem difficult, but, in reality, it . is not. Remember that the key lies in blood meridian the speech topic that you have chosen. It is essential to in Society Essay look for a speech topic that is contemporary and fascinating to the audience. Persuasive speech topics should be based on blood themes and Nietzsche on the of Psychological ideas that the audience strongly feels about or may easily relate to. You should choose a topic that interests you.

It will be. Animal testing , Audience , Human rights 859 Words | 6 Pages. Speech Goal: To inform the audience about physical child abuse. Ending? Introduction: I. I want everyone to E-Waste Recycling Essay take a moment to blood think back to Mexico and Its . Blood? your own childhood. Think about the evil things you wanted and the things you had. For some of meridian us, our childhood was the Mexico Essay best, but for others it probably could’ve gone better. II. Unfortunately for many children a day in life is blood ending, something unwanted. And Its Politics Essay? III.

Every child deserves to have a happy and experience a perfect childhood. Most children wish for a. Abuse , Child , Child abuse 992 Words | 3 Pages. today. C. You get the virus when someone infected makes genital contact with you. D. The only way to prevent it is to get your Gardasil shots before . Blood Meridian Ending? it’s too late. E. I have already had my shots and hopefully by the time I am done with my speech the ones who haven’t will go get there shots. Body: II.

HPV is the most commonly sexually transmitted infection. A. According to Centers for midnight garden, Disease and Protection, “there are more than 40 HPV types that can infect the genital areas of males. Cervical cancer , HPV vaccine , Human papillomavirus 873 Words | 3 Pages. tells a story of an early time when all people spoke the same language, lived and cooperated with each other. They all agreed and tried to meridian ending build the colonisation of asia Tower of ending . Babel all the way to heaven. God punished them by making each person unable to understand the speech of every other person. Once the workers lost the ability to european colonisation communicate, they were unable to blood meridian ending continue working together.

IV. And Its? Now that we know the reasons for proposing the English Language Unity Act, I will discuss what will be the different. Dialect , English language , Puerto Rico 1571 Words | 5 Pages. ?Blake C. Blood Ending? Ms. Midnight Garden? McMahan Speech March 19, 2013 No More Rap Music . Meridian Ending? Funny story actually, “I was gonna clean my room, but then I got high, I was gonna find the broom, but then I got high, my room is still messed up and I know why, ‘cause I got high, ‘cause I got high, ‘cause I got high” (Afroman). About Nietzsche On The Origin? This popular hit called “Because I got high” by a guy named Afroman is ending, what kids are listening to these days.

I agree with. Gangsta rap , Hip hop music , Profanity 1100 Words | 3 Pages. Delivering a Persuasive Speech Douglas A. Parker August 13, 2001 | Amazon Products | |Subject(s): Language . Arts/Reading and Public Speaking |Links of Mexico Note | |[pic] | |Overview: Students need to ending understand that how they say something and how they physically present | Persuasive Essay Topics form| | | |themselves are just as important as what they say. By understanding. Human voice , Language , Persuasion 1503 Words | 7 Pages. buying stops, the killing can too” (The Economist, 2012). European Colonisation Of Asia? [Transition: I hope after hearing of these endangered species and blood meridian punishments, you can all see the Essay examples . importance of blood meridian heavily regulating laws to and Its stop them from becoming extinct.] Conclusion I. As my speech is blood, reaching its conclusion, there are still many students here who probably haven’t understood the true reality of what is happening with these species.

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Persuasive Speech Graphic Organizer Fill in each box with the E-Waste Essay required information. By completing this organizer, you will have . the ending majority of your speech finished and ready to present. About Nietzsche On The Of Psychological Illnesses? Name: Introduction Hook/Lead-In Statement - Introduction of Topic: The Hook or Lead-in might (1) provide an anecdote or example that helps to illustrate your topic, (2) use an blood, interesting detail, statistic or quote or (3) ask a provocative question. Regardless of your approach, you will need to model lead. 2005 albums , Debate , Introduction 757 Words | 4 Pages.

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Top 10 Details to Include on a Nursing Resume. As healthcare recruiters, we reviewed thousands of nursing resumes. Unfortunately, the vast majority of ending, them were missing multiple details that were important to the Nurse Managers and Mexico Essay, Nurse Supervisors who were largely responsible for meridian making the hiring decisions. Moreover, missing these critical details can ultimately lead to a lower ranking within the Applicant Tracking Systems so prevalent in today’s hiring process. We hope the information provided here will help you create an amazing resume! First, it’s important to have an idea of how the hiring process typically works in order to thoroughly understand the importance of european of asia, these critical details. When a job opens up to the general public, the healthcare employer can sometimes receive hundreds of resumes. In some cases, the resumes are electronically ranked by Applicant Tracking Systems that award higher rankings for resumes that include the critical skills and meridian ending, experiences sought for the job. In any case, staffing office representatives, mostly recruiters, will review the rankings and resumes and european, pass along the “best” candidates to meridian ending, the hiring managers. It’s important to Essay about Nietzsche on the Origin Illnesses, note that being the “best” often means having a resume with all the critical details. If the information isn’t there, then the resume stands a far greater chance of being removed from the process.

It’s important to meridian ending, note that missing these details is not the nurse’s fault. Mexico And Its Politics Essay! Unfortunately, the vast majority of blood meridian, informational resources pertaining to resumes is very general in nature. General resources are useful only for people with very general careers like “Sales”. Fluid Mosaic Model! These resources are mostly useless for nurses. Meanwhile, many resources specifically related to nurse resumes offer insufficient detail. Blood! Moreover, healthcare employers do a terrible job at conveying what they’re looking for in their job descriptions, so candidates have no clue what to and Its Essay, include in their resumes. Skimming the list below may leave the impression that everything on it is obvious. However, reading the details provided for ending each item will most likely uncover items which are missing from your nursing resume . What to Include on E-Waste Recycling Your Nursing Resume.

There are literally thousands of potential professional affiliations for nurses. In most cases, employers want to know if you belong to any. For example, if you belong to the American Association of Critical Care Nurses or the Emergency Nurses Association, then most employers would like to know this. Blood Ending! Include the following information: Affiliation name Your date of admission Offices held Brief description of your role or reason you chose this group over others. 9. Honors/Awards/Special Assignments: As with every other resume, a nurse’s resume should include any honors and awards they’ve received. Examples include honors and Essay about Nietzsche and Freud Origin of Psychological Illnesses, awards from school, work, volunteer work, professional affiliations, and even social clubs.

Nurses should also include any special assignments they were given at work. Did you ever take charge duty? Did you do any scheduling or mentoring? You may choose to place these items under their own heading. Blood Meridian! However, this isn’t necessary. You can also add them where applicable throughout the rest of your resume. 8. Specific Nursing Education Details: Including the degree you earned (ADN, ASN, BSN, MSN, etc.) is a must. Not including it increases the chances that your resume will be removed from fluid of plasma, consideration. This is blood meridian ending because the E-Waste, information is often required for the resume to move through the process and it isn’t easily attainable by the staffing office.

So, they’ll often pass on a resume that doesn’t include the meridian ending, information in favor one that does. Provide at least the following information about your education: Name of european of asia, school Degree earned Beginning date Completion date City, and State. You might also consider adding a description that includes achievements, awards, scholarly organizations and activities, or your GPA if it was really high. Ending! Of course, scholastic achievements are more important the Materialism Essay examples, earlier you are in your career, so keep that in mind when crafting the blood ending, education section of your resume. Finally, you may also wish to include details on any continuing education units you’ve taken within the last 2 years. Bonus: Are you bilingual? If so, be sure to include it on Nietzsche Origin of Psychological Illnesses your resume! According to a recent study from Wanted Analytics, “bilingual” was the second most commonly required skill listed on nursing job advertisements.

7. Nursing License and blood, Certification Details: It is highly recommended that you include the midnight good evil, following for your licenses: License type (LPN, RN, NP, CRNA, etc.) Licensing State/Body Name on license if different from name on resume License expiration date License number If the license is part of the Nurse Licensure Compact, then state it clearly. Many people argue that a nursing license number should not be included on blood ending a resume as a matter of privacy. Colonisation Of Asia! However, nursing license numbers are a matter of public record. They can be easily obtained from each state’s Board of Nursing using the standard information included on blood ending your resume. Providing the license number simply makes the recruiter’s job easier.

And in a competitive job market, that could make all the difference in the world. When it comes to model of plasma, certifications, it is highly recommended that you include the following for every certification you hold: Certification name (BLS, ACLS, PALS, TNCC, etc.) Certifying body (AHA, etc) Expiration date, or date acquired if it has no official expiration date. Unlike most professions, nursing is conducted round-the-clock. Therefore, it’s best to convey the shifts you’re willing to work on your nursing resume.

Are you open to working 8, 10, and/or 12 hour shifts? Are you open to working Days, Mids, PMs, and/or Nocs? You should include this information even if you’re applying for a specific job with a specific shift. You never know if the employer has another opening that is blood meridian unadvertised which you maybe qualified for. European Colonisation Of Asia! Moreover, resumes aren’t always submitted to ending, specific job advertisements. In fact, many sources indicate that 80% of all jobs are filled through networking. Including your availability is very helpful for Origin Illnesses general job inquiries. In addition, you should indicate your willingness to blood ending, relocate when applicable. These statements regarding availability can be given their own heading, but it’s best to simply add them to your Professional Summary.

The healthcare industry is going electronic. Paper charting will soon be a way of the past. It’s imperative to list any and all Electronic Health Record (EHR) and Electronic Medical Record (EMR) experience you have. E-Waste Recycling! According to a recent study by Wanted Analytics, “Electronic Medical Record” was the most commonly required skill for nurses listed in nursing job advertisements. “Epic Software” and “Meditech”, popular EMR software packages, were also on the list. Of course, billing codes are a big part of meridian ending, EMRs.

And both ICD10 and Materialism Essay examples, ICD 9 are among the blood, most commonly listed skills in job advertisements. So if your scope of practice deals with this in any way, then be sure to add these to your resume. You may also want to on the Illnesses, include any other computer experience you have just in case it may be of value to the employer, or to at least demonstrate that you have computer skills if you lack experience with EHRs and EMRs. Signifying the type of blood, facility you worked in tells the model membrane, potential employer a ton about your experience with very few words. Blood Meridian Ending! You should know the exact designation of all the facilities you worked with and if you don’t, now is the time to Mexico Politics Essay, find out.

Short term acute care? Long Term Care? Long Term Acute Care? Senior Nursing Facility? In addition, if you worked at a Trauma Hospital, then you should include this on your resume along with the trauma designation (1, 2, 3, etc). Blood Meridian! If you worked at a teaching hospital, then you should include this information. Such information can be included under the specific job description in your resume’s Work History section, or in your resume’s Summary. For example, if the job listing you’re applying for lists trauma hospital experience as necessary or desired, then it’s a good idea to identify your trauma experience in the resume Summary to make it stand out. Include the number of total beds at about Nietzsche on the Origin the facilities you worked at, as well as the number of beds in the specific units on which you worked.

Just like the facility type, providing the number of beds tells the potential employer a ton about your experience with very few words. We regularly saw resumes that listed things like “3 West” as the unit. Unfortunately, only people who work at that facility know what that means. Instead, include the type of unit (MS, TELE, ICU, CVICU, ER, LD, etc) in order to convey the message. We can’t stress enough how important this is. Also include your caseload. Ending! What was the nurse to patient ratio in this unit, and how much support was there in european of asia the form of LPNs, CNAs, or MAs?

Include any other unit specific details as well. Did the unit take trauma patients? Did the unit routinely deal with overflow from other units? If so, what types of patients were seen from overflow? 1. Specific Details/Duties and Accomplishments Regarding Your Nursing Experience: Up to this point, the focus has been on incidental, although very important, details.

But what about the meat of your resume, the job descriptions and experiences that make up the bulk of your resume? When it comes to this, nurses are in the precarious position of blood, balancing duties with accomplishments. You see, the Essay and Freud Origin, current standard recommendation for resumes is to make them accomplishment driven. The idea is that you should provide specific accomplishments, as opposed to duties, that illustrate how your work translated into quantifiable and ending, tangible results for your current and Essay, previous employers. Advocates of meridian, this approach advise against listing duties on your resume. However, healthcare employers need to know that you have experience with the highly technical duties that are integral to the job you’re applying for. At the same time, they too want to know about european of asia, your accomplishments. Therefore, it’s important to include details about the specific day-to-day duties you performed. However, at the same time, you don’t want to fall into the trap of creating a “duties-driven resume”.

Managing this challenge represents a key difference between nursing resumes and general resumes. Before we continue, it’s best to address the 800 pound gorilla in this conversation. Nurses sometimes have hundreds of ending, duties and responsibilities. How do you choose which ones to list because you certainly can’t list them all? We hate to say it, but including things like, “Provided patient care” is a complete waste of space. It’s simply too general. Our experience indicates that many nurses believe that nursing is very similar no matter where you go which may be the reason that such general statements are so often included in midnight good nursing resumes. In reality, the differences are stark between various facilities.

For example, the ending, Step-Down Unit at one hospital may not work with Swan-Ganz Catheters while the SDU in another hospital may. With that in mind, here are some general themes to consider when determining the types of duties to include on your resume. This list is not comprehensive, but it should help you understand the level of specificity that we’re talking about: Did you start IVs? Did you administer medications? Which medications? What type of patients did you care for?

Renal? Cardiovascular? Neuro? Ortho? Rehab? What was the age range of the Mexico Politics Essay, patient population you cared for? What specific equipment do you have experience with? Did you read strips? Work with vents? Trachs?

Balloon pumps? Swan-Ganz? da Vinci Surgical System? Which industry-wide protocols, processes and procedures are you experienced with? For example, AIDET is among the meridian, most commonly listed requirements in nursing job advertisements. There are many similar protocols, processes and procedures throughout the industry, so be sure to Essay, make note of those that were used by your previous employers. Now, we’re still in the tough spot of determining exactly which skills and duties to ending, include on the resume.

First, start by and Its Essay, including any duties specifically mentioned in the job description that you have experience with. Next, do some research on the employer in question to find specific details that may help you decide which duties might be important to meridian, list. Use the model of plasma, company website, news, and any professional connections you have in an effort to determine the types of patients, processes and procedures common to the specific employer in question. Once you have the duties narrowed down, there are a couple of ways to convey them on your nursing resume. First, you can incorporate the duties into your “accomplishment statements”. We discuss this approach below. Second, you can simply list out the duties.

While this is less preferred, it is meridian ending sometimes not possible to accomplish any other way. Your summary is a good place for fluid mosaic model of plasma this. For example, you might include the following in your resume summary if you’re applying for blood meridian ending a position in the CVICU: Proficient with starting IVs, Intra-aortic balloon pumps, 12-Lead Placements, 12-Lead Interpretation, AICD Insertion, Beta Blockers, Argotroban, Atropine and other cardiovascular medications. Bonus: Given the large number of skills and duties nurses are responsible for, you may consider utilizing a “Skills Checklist” during your job search. In Society Examples! Skills Checklists are self assessment tools commonly used throughout the blood meridian, healthcare industry. BluePipes provides members with free access to mosaic model membrane, over 100 comprehensive skills checklists that can be completed, saved and downloaded as PDF documents. You can view a sample here. They’re a great way to convey your skills to potential employers.

You might consider uploading them along with your resume when applying for jobs or you can bring them to your job interviews. Considerations for Accomplishments. Now that we’ve covered duties, let’s take a look at accomplishments. First, you can try to frame duties inside “accomplishment statements” in order to knock them both out at the same time. In other words, offer an explanation about how you achieved results while performing your duties. Again, this isn’t always possible, but here are some considerations: Did you receive recognition or awards from blood ending, your previous/current employer?

Did your previous/current employer receive recognition or rewards? How did performing your duties contribute to that? When framing accomplishments, it’s also useful to Essay Nietzsche and Freud Origin of Psychological, know how your previous and blood meridian ending, current employers quantified their success as an organization. For example, patient satisfaction is typically tracked with programs like HCAHPS or Press Ganey. Did your employer experience improvements with such indicators? How did performing your duties influence that? Next, it’s important to understand how your current and former employers measured your individual performance as this is very helpful when framing accomplishments. Mosaic Model Of Plasma Membrane! Nearly every healthcare employer conducts employee evaluations. Evaluations typically offer both qualitative and quantitative information that can be leveraged when framing accomplishment statements.

Again, you may choose to list specific duties you’re proficient with separate from your accomplishments. Or, you may choose to blood meridian ending, frame the duties within your accomplishment statements. Or you may choose a combination of the two approaches. In any case, it’s important to provide both job-specific duties and Essay about on the of Psychological, accomplishments on your nursing resume. Bonus: Healthcare is very diverse. Blood Meridian Ending! Many hiring managers would also like to Essay about Nietzsche on the Origin of Psychological, know what other skill sets you have outside of your primary area of expertise. Blood! Did you float to model of plasma, the ER or LD units when needed? If so, then you may want to provide some reference to the skills and accomplishments you achieved in these areas.

General perspective on nursing resumes. This may seem like a ton of information to incorporate into a standard resume. However, nursing is not a standard profession and ending, concerns over resume length are becoming antiquated with the advent of Applicant Tracking Systems. Moreover, the push to force nursing and E-Waste, healthcare resumes to conform to the standard format that serves general professionals, like salespeople, is a disservice to meridian, both healthcare professionals and Essay about Nietzsche Origin of Psychological Illnesses, employers. Healthcare professionals often miss opportunities to highlight skills and experience that are highly sought after. As a result, healthcare employers often miss out on perfect candidates.

This push toward generalized conformity is blood ending even prevalent on the most popular job boards, like Monster and CareerBuilder, and garden evil, professional networking services like LinkedIn. Nurses and other healthcare professionals are better served by ending, industry specific professional networking services like BluePipes. Mexico And Its Politics! For example, BluePipes provides nurses with a profile builder capable of recording healthcare specific career details as well as the ability to print the profile to PDF as a resume formatted specifically for blood ending healthcare professionals. So it’s like a cloud based resume service. Midnight Garden! It also offers several other tools that help nurses manage their careers more effectively and efficiently. Ending! As always, your feedback is greatly appreciated. Please let us know what you think by posting a comment! 16 Tips To Prepare Your Nursing Resume For Applicant Tracking Systems We’ve spoken to countless nurses and other healthcare professionals who. Materialism Essay Examples! How to Write the Best Nursing Cover Letter A well crafted nursing cover letter can be just as. Nursing Resume Objective or Summary?

Nurses often wonder if they should include an blood, objective or. I am wondering how to Politics, list my experience as a maternal-child float RN of 2+ years. Meridian! I worked 4 different units, all quite different, ranging from mom baby, to peds, peds ed/uc, and nicu. How do i go about addressing those different areas and responsibilities and skills, when they all fell under 1 position? Thank you for the information, its very helpful. Mexico And Its! This site is of so much help to blood meridian, me. thank you, and it is also free. Its amazing, I just can’t appreciate it enough. I was wondering, i am a one year experience nurse at a step down ICU (PCU), I am now looking for a job in about Nietzsche and Freud on the Origin of Psychological Illnesses an ICU. The locations and facility i am looking at ending have nothing for experience nurses, but have a lot of positions for Essay new nurses that want to blood meridian ending, work in ICU. I just want to apply to the new nurse position and Essay and Freud Illnesses, i really don’t mind the pay. Now my question is, should i just use my new grad resume with my clinical experience or i should update my resume with my one year experience and apply although the meridian ending, position is for new grads. European Of Asia! please i will really appreciate any advise. thanks you.

How can I include my Medical-Surgical Certification from ANCC on my resume. Can I include it on my credentials area on meridian top of my resume – following my name and degree? I ask because the ANCC instructs to do so on their website. I’ll be honest it’s somewhat confusing though, at least to colonisation, me. I plan to blood meridian, include my Medsurg certification in certification section of my resume where BLS and RN licensure are, etc. I just wanted it to good, stand out and pop so to speak – as to not have to blood ending, read on to notice it. On ANCC site, on a “How to Display Your Credentials” page they instruct you to include RN- BC (Registered Nurse-Board Certified).

Was hoping you could clarify or add something else. Great web site … thanks. Thanks for the inquiry, Jesse, and my sincerest apologies for the delay! Your Medical-Surgical Certification from ANCC is considered a “National Certification” and should be listed after your name at the top of of asia, your resume and in the Licenses and Certifications section of your resume. Blood Meridian! The order for listing credential after your name is: Highest Degree Earned State License National Certification Nationally Recognized Honors and Awards. I hope this helps! I have been working out of the acute care setting in public health nursing for 7 years. I have heard over and over that because I have been out of the acute care setting for so long that I don’t qualify for a lot of the positions that I have applied for. Admittedly, I have not used many nursing skills for the last 7 years, except for giving immunizations and occasionally drawing blood.

I have gotten very weary and Essay, feel like I will not be able to find another job, and I am really not happy with my current job. I am unsure of how to make my resume “pop” and have prospective employers want to give me a chance. I am not looking to get back into areas that are highly skilled, but I would not mind getting back into meridian ending acute care. Midnight Garden Evil! Any ideas. Kurt, I am an RN at a VA hospital in cardiac telemetry. One of the biggest hurdles to applying at any VA facility is the fact that USA Jobs is a digital screening tool as much as it is an online application portal. Matching as many keywords in the functional statements for your desired role in your application can be the difference between getting an blood meridian, interview and being passed over. Hope this helps!

In your article you talked about whether or not your previous/current employer received recognition or rewards. I’m working on applying for a position that is open for an orthopedic nurse after quitting my previous orthopedic nurse job. The hospital that I previously worked received recognition for their total joint replacement program. E-Waste Essay! I was wondering if this would be something that is good to include as part of my resume, considering I was a part of the blood meridian ending, unit during that time for the hospital’s certification/recognition. If so, how would you go about including that in without making it seem just a random fact listed and make it more as an accomplishment for myself also since I was a part of midnight garden, that unit/team during that time. Thanks for the inquiry, Jessica. Yes, this is definitely something you can include on your resume.

If you feel that you’re not able to expand in a way that adequately describes your role in meridian the achievement, then you may want to expand in your cover letter. On your resume, you might want to couple this team achievement with one of your own that demonstrates you were a key contributor. For example, you might have received an individual award or a high employee evaluation score. You may also want to include this in your summary as opposed to the job description to make it stand out a little more. I hope this helps! I am an E-Waste Essay, experienced OR nurse who has performed in blood meridian just about garden, every surgery setting from Open heart to Ophthalmology, outpatient as well as pre-op admitting and recovery In the meridian, past I have managed a surgery department at a busy hospital and E-Waste Recycling, also ran a surgery center. Blood! I have been fortunate to european, have been able to take off time to stay home and be with my children. That being said, I am worried about the years off and blank space on my resume. How would you go about filling in the gap?

I have volunteered in multiple areas at their schools, from organizing an Emergency Preparedness fair, fundraisers and blood, teaching Compression Only CPR. About Nietzsche! My license and continuing CEU’s have always rained current. Do you think this will make it difficult for me as I try entering the job setting? I appreciate any suggestions you might have. Thanks for the inquiry. There is no steadfast rule on how to handle this situation, but there are two fundamental approaches to consider. First, you can consider a “Functional Resume.” Functional resumes are resumes that focus on skills instead of experiences.

In your case, you would focus on all of meridian, your OR experience. You might have a small section to list your previous employers. or you may even choose to leave it out entirely. Fluid Model Of Plasma Membrane! There are many examples of blood ending, Functional Resumes available on the internet. Second, you could use a traditional chronological resume. In this case, you would list your experience raising the kids as one of the entries in your chronological work history. You could include details on the experiences mentioned in your comment on this blog post. Again, there is no right or wrong way.

Each has its advantages and disadvantages. To answer your question, yes, this situation is always a bit of challenge. About And Freud On The! However, experienced nurses are in high demand at the moment, so you should be fine. Also, I’m personally inclined to recommend the chronological format. The main advantage of meridian, Functional Resumes in in Society Essay examples this particular case is to blood, draw attention to your skills and away from the gap in recent experience. However, employers are going to find the gap no matter what. So, I think it’s best to embrace it. With the chronological resume, you can still include all the applicable skills.

I hope this helps! I have worked in home health and midnight good, corrections for about 5 years now. I have done a lot of basic nursing ranging from meridian, blood draws, interpreting labs, starting IVs, wound care, peritoneal dialysis, picc line care (including using clot busters) and removal. IV anti biotics, med passes small and large including mental health medication passes. I have responded to midnight good, chest pain calls, shortness of breath, hangings, falls, knife wounds, self inflicted wounds, and unresponsive patients. I have worked in blood a corrections hospital with acute and long term patients as well as hospice patients, but it isn’t seen as ER work even though it seems from talking to other nurses that that isn’t so far different than those working in Recycling Essay a hospital ER..

Trying to format my resume to make my experience fit into what the Veterans Administration would want/be attracted to.. I am a soon to be retiring Military Nurse and will be transitioning to the civilian workforce. How important are listing awards? I have numerous military awards based on my work ethics and performance on the job, but I am afraid that the general public is not going to have any idea what they are or mean. Also, any good tips on blood meridian ending turning military missions into civilian language? Thanks for your service!!

I think it’s a great idea to add the awards to your resume. You could do one of two things. Simply list them out by their official name. There’s a good chance that the reviewer will search for fluid of plasma membrane the award on the internet and find it. Or, you could add a very brief description of the award in parentheses.

For example: X Award (earned for valor in blood meridian action). Either way, if you have a lot of fluid model of plasma membrane, awards, then you may want to include only the highest ranking awards. If you choose to list many of them, then put them in columns or in blood a continuous stream separated by commas to save space. Conveying your military experience in civilian language can be challenging if you did not work in a military hospital. My apologies, but I lack the technical expertise to provide detailed recommendations. That said, I’d recommend reviewing the job descriptions for the jobs you’re applying for use them to mosaic of plasma membrane, guide your efforts whenever possible. I hope this helps and thanks again! I have a position working in a “float pool” (we call it the Mobile Unit). The unit is split into two different tracks, med/surg (HV general acuity patients; ortho/urology/gen/gyn surgery; neuro/ENT; Onc [recent unit merge means I don’t float here anymore]; gen med; adult psych; child/adolescent psych; Postpartum (moms and babies); inpatient rehab) and critical care track (Onc/Med/Surg IMCU; ICU; HV high acuity patients; ER; Neonatal ICU). How do I discuss bed numbers for each unit and descriptions that highlight any specific training I have had to meridian, play into each patient population? It seems like there’s no way for me to E-Waste Essay, cover all of this detail without leaving a lot out or getting too wordy.

I also accepted a critical care position, but have not transitioned yet. My husband just got a job out of state, so we have to ending, relocate, as much as I love my current employer. This is a great question; thanks for posting it here! You’re right, you’re probably not going to be able to convey the broad spectrum of your experience without getting too wordy for your nursing resume. So, you’ll need to offer some general details as well as some specific details. When it comes to specifics, it’s best to E-Waste Essay, tailor your resume to the specific job you’re applying for.

Find out what they’re looking for and be sure to ending, convey that you have the skill set, or convey relevant details about your experience. Good Evil! I believe this is the most important consideration for blood ending your resume. When it comes to generalizations, you could offer a description similar to the one you’ve provided here. For example: I worked on a Mobile Unit, or Float Pool, caring for Med/Surg patients 50% of the of plasma, time and ICU patients 50% of the blood, time. Colonisation! The Med/Surg patients included Postpartum, PSYCH, general Med/Surg, and Neuro/ENT. The ICU patients included ER, NICU and general ICU. Unit sizes varied from 5 beds up to 25 beds.

You might also try utilizing skills checklists to convey your experience, especially if you make it to the interview stage. Blood Meridian! Also, many applicant tracking systems allow applicants to upload documents, so you might be able to and Its Essay, upload skills checklists there. You can complete and save skills checklists on BluePipes and utilize them at your convenience. I hope this information helps! My husband was an ICU nurse for ending 5 years (18 months of that he was an ICU travel nurse) but took 2.5 years off to work in another field. He’s now applying for nursing positions as we prepare to move.

Should he address the clinical gap in his resume? With just his last RN job listed, it looks like he last worked in 2013 though he’s been employed as a youth minister since then. How should he handle this? Yes, you should address the Materialism in Society, gap in the resume. It’s fairly common for hospitals to require the last 7 years of work history to blood meridian ending, be included on Politics Essay their job applications. A large percentage of the hospitals I worked with had similar requirements for resumes. Unfortunately, the default assumptions when it comes to employment gaps are all negative. Do your best to tie the blood ending, experience into colonisation nursing. I believe most career advisers would recommend the same. I hope this information helps!

I am applying for RN jobs, but am still waiting to blood meridian ending, take my boards (will take them within the next 1-2 months). Mosaic Model! How should I address this on my resume? You may want to add an excerpt under Licenses and Certifications or your Summary (or wherever appropriate) that provides the blood meridian, date you’re scheduled to take the exam. Mexico! For example: RN: Scheduled for NCLEX on July 9, 2015. I hope this helps!

Thank you! I think that’s what i’ll do. For a new graduate of a second-degree BSN program, would you recommend including GPA (3.9) on a resume? Thanks for the question, Emily! Yes, I recommend adding a great GPA to your nursing resume. Meridian! We discuss this in our blog post on new grad resumes and in our blog blog post on job search tips nurses should avoid.

Many people argue that your GPA doesn’t matter. They say that all that matters is that you’re licensed. If that were the case, then no details about and Its Essay, you as a person, your work ethic, or achievements would matter either. And we know that’s not true. It is HIGHLY unlikely that your resume is passed over blood meridian ending, because you included your high GPA. Model Of Plasma! Meanwhile, many hospitals and hiring managers love to see it, and assign value to it. So yes, by all means, add it. I hope this helps! Great work, by the way! I am wondering if I should include phone numbers for my previous employers?

If yes, which number should I use – the blood, general number, the unit, or HR? Also, some of my employment history goes back many years and midnight garden evil, the identifying information(number of beds, etc.) has changed. I do not have the correct information from when I worked there. Blood Meridian Ending! How should I list this information? Is there a good way to find current identifying information for a hospital?

Thanks in advance for your response. Thanks for posting these great questions! First, there are no set rules for nursing resumes, so you’ll find some disagreement on almost every resume recommendation. That said, the general rule is Recycling that you should not include the contact telephone numbers for your previous employers on your resume. Blood Meridian Ending! In fact, you don’t need to include the complete address either. The city and state will suffice for your resume. On a side not, chances are that you’ll be applying for most jobs on the company’s website through an of asia, applicant tracking system. These online applications may allow you to blood meridian, enter the telephone numbers and addresses for your former employers. In this case, I always recommend adding every last bit of Essay Nietzsche and Freud on the Origin of Psychological Illnesses, information you can to your online applications.

Again though, that’s separate from blood ending, your resume. On a another side note: If you are applying for travel nursing jobs, then you should include the telephone numbers and the supervisor names for your previous jobs. In order to find current information for your former employers, you can use a website like The American Hospital Directory. They have a free hospital profile lookup tool. European Colonisation! I recommend using the “advanced search” for meridian ending best results. Please note that the links to these pages are underlined in blue. Garden Good Evil! Here you will find the meridian ending, current contact information, number of beds, teaching hospital status, trauma status, etc. If you are unable to locate the information here or if your former employers are not hospitals, then you can simply try a google search for them or try the Medicare.gov site. Materialism! If your former employer does business with Medicare, then they should be in the database with current information…assuming they want to get paid :-).

Now, about your older work history. Many resume experts recommend including only the last 10 years of work history on ending your resume. However, that assumes that your prior experience may no longer be applicable to your current job search. Nietzsche On The Of Psychological! Others argue that you shouldn’t include more than 10 years of work history because you don’t want to date yourself. They’re concerned about “ageism” in ending the hiring process. These same people recommend not to about Nietzsche Origin of Psychological Illnesses, include the dates you attended college. Ultimately, it’s up to you to include this information, I just wanted to provide some considerations. I hope this information helps.

Please let me know if there are further questions! Help! I have over blood, 22 years of Mexico and Its Politics Essay, clinical experience including ICU, hemodialysis, and outpatient surgery ctr (pre and pacu), and for the last 6 years (in addition to the 22 years) I’ve been reading electronic charts to blood, extract data and support level of care (I’m told this is utilization review by garden, a friend but we never called it that in work). Now Ive been laid off (it was a large comp layoff). I’m trying to get into QA, UR, pre cert or case managment. I was told I have a solid resume but I’ve gotten 3 calls in 3 months, I blew the first interview and blood, the next 2, they said they wanted CM experience. E-Waste Recycling! What do I need to do to meridian, get into these fields? Any suggestions? We’re sorry to hear about your current situation! It’s always difficult to break into an entirely new field. However, it sounds as though you have some experience to build on.

Typically, Case Management and Utilization Review require InterQual experience. If you have experience with that system, then be sure to include it on E-Waste Recycling your resume. Ending! Otherwise, see if you can obtain some training in it. Check with local and state agencies to Essay examples, see if there are any offerings for people in your situation. Also, review the specific details of blood ending, each job opening and tailor your resume to Materialism, include the blood meridian ending, key requirements where applicable. Check to Materialism in Society examples, see if there is a local association that you can network with like the blood meridian, Case Management Society of America for example. Fluid Model! Ask anyone you speak with if a Case Management Certification would improve your chances, perhaps even call the people you’ve interviewed with previously to see what they say. If so, look into certification. We hope this information helps! I have been reading through some of this thread and was wondering if you do any resume/cover letter revisions? I can tell you put a lot of useful/productive feedback into your responses and would value your opinion if you were to meridian, review a copy of Recycling Essay, mine!

P.S. Ending! When you mention Computer Experience in the article above, do you suggest adding these details under each individual job (under work experience/history) the garden good evil, comp. Meridian! experience applies to or under a separate section such as the Essay examples, one you have listed as Comp. Experience? Thank you for all your time and effort! Thanks for reaching out! My sincerest apologies, but I do not do resume/cover letter revisions. Blood! Thanks so much for your interest though. As for the computer experience, you can add it with any of the methods you described. The important thing is that it’s there.

The resume builder on BluePipes.com lists computer experience under a separate heading. We do this as way to ensure that members recognize and record it and perspective employers and recruiters are able to easily locate the details on the members’ profiles and resumes. Mexico And Its Politics! Given that EMR experience is becoming such a prevalent requirement, it’s good to have it easily accessible on blood meridian ending your resume. However, it’s also good to add these details under each individual job when creating your own resume. It may not be as easy to locate, but it takes up less space, avoids redundancy, and still presents the information.

We hope this information helps! I am currently an RN with 4 years solid experience in a 16 bed transitional care unit. Now I’m trying to move to a more challenging position. European Colonisation! Prior to immigrating to America I was a medical doctor for 9 years in ER. Would it be wise to meridian ending, mention that experience? …maybe describing my duties and medical college? I work in a program that enrolls military medic and corpsman and gives credit for mosaic model membrane their military experience towards an blood, intensive BSN-RN program. My question is what should the graduates highlight on their resumes? Many have extensive trauma and on the Origin of Psychological Illnesses, nursing care experience. Meridian! Suggestions?

Hi! I have a question / concern. Fluid Mosaic Membrane! I just finished my 2nd year of ending, nursing and on midnight good a med Surg unit. I have been asked to apply to meridian ending, an ICU position and Politics, I need to update my resume. I don’t know what to meridian, include. Prior to Recycling Essay, nursing, I was a surgical tech for ending 16+ years and active duty for fluid model membrane 10 years. I really enjoyed your blog and will refer to it when updating my resume! We’re glad to hear the information was useful. Congratulations on meridian ending being asked to apply for Essay about Nietzsche and Freud Illnesses an ICU position.

That’s a good sign! #128578; Sounds like you have a lot of great experience to include on your resume. We recommend focusing most attention on your recent experience in ending MedSurg as it is the most applicable to the ICU role you’ll be applying for. However, you can also include brief descriptions of Recycling Essay, your surgical tech and meridian ending, active duty experience as they are certainly desirable experiences. Garden Good Evil! Relate all your work history descriptions to the ICU position. To do so, find out as much as possible about the job and blood, the unit. We hope this helps!! Oh MY! I’m sooOOO grateful to european of asia, have found your blog page!

I was about to do my sister a grave disservice –as you’ve mentioned. Indeed, the day of the one page crammer is passe’. Especially with the value of the keyword in electronic filing. Thanks so very much; you may have saved my Sis’s resume from becoming fodder for blood meridian the shredder. [[shudder]] We’re glad to hear the fluid mosaic, information is useful. To be clear, 1 page resumes are still useful, particularly for blood job fairs or any other instance where the resume will be given directly to an individual. However, in most cases, people are attaching their resume in an Applicant Tracking System.

In this case, it’s still good to be brief and choose your words wisely. Don’t be overly verbose and don’t “keyword stuff.” However, you also shouldn’t be worried about a 2-3 page resume if your background requires it. Be sure to tailor the resume’s wording to the job posting where applicable based on your background. We hope this helps! Thank you for about on the Illnesses this article! I realized that my resume was not up to meridian ending, par by reading this. I had many generalized statements, which I have replaced with information on E-Waste Recycling what I really did on the day to day. I recently worked at ending a hospital for 4 months and resigned due to it not being a good fit.

It was a cardiac surgery step down unit, so it gave me experience with tele that I have not had in my 5 years as a nurse. Should I include it on my resume? You’re welcome! We’re glad to hear you found the information useful. This is a tough question. I assume you’re asking because you’re concerned that the short employment duration might raise some questions in the minds of potential employers. That’s a valid concern. On the flip side, you did gain some valuable experience that would be great to add to your nursing resume. There is another issue to consider.

Hospitals often have strict policies requiring that healthcare professionals provide them with every last bit of the healthcare professional’s employment history. Materialism In Society! Omitting a previous job on your employment application could be grounds for dismissal depending on blood ending how they have their clauses worded. Of course, this depends on their ability to verify the omitted employment. This may not necessarily affect you during the candidate review process when your resume is E-Waste Recycling typically the document they’re working off of. Blood Meridian! However, if you land a job offer, then they’ll eventually require an Materialism in Society examples, application to completed. If you choose to blood meridian ending, add the omitted job at that point, then you’ll have some explaining to do.

Utltimatly, the decision is yours. If you choose to add the employment to your resume, then you may want to offer a brief explanation of colonisation, why you left in blood meridian your cover letter. It’s all about the story you tell. We hope this helps. This is all great information but I do have a question. European Of Asia! I am a recent BSN grad and licensed RN trying to land my first job. Would you recommend including my preceptorship under clinical experience or as work experience? I have seen it both ways in examples online. Thanks, Kristin.

We’re glad to hear this information on was useful. You’re correct, you’ll find preceptorship experience displayed both ways…under clinical and meridian ending, work experience. To further confuse the issue, some people believe that clinical experience and work experience are one and the same while others believe they are two different things entirely. Materialism In Society Essay! We view the preceptorship as something akin to a highly advanced internship. Blood Ending! For all intents and purposes, it is work experience. However, it doesn’t constitute a traditional employment relationship. Therefore, feel free to in Society Essay examples, include it under either category on your resume, but be sure to clearly indicate that it’s your preceptorship. On a side note, we cannot stress enough the importance of blood meridian ending, professional networking when landing your first job. 70%-80% of all jobs are obtained through networking.

While your resume is important, networking is the key…especially for new grads. We hope this information helps. Fluid Mosaic! Best of luck!! Great info – I could have used that for my last job application! Do you have any tips / strategies to meridian ending, prepare for E-Waste job interviews? I am finding these horribly stressful and hard to get my point across even when I know I’d be really good at the job I’m applying for. Thanks, Heidi! We don’t have any blog posts regarding interviews yet. Blood Meridian Ending! Thanks for the suggestion.

We’ll explore the topic soon. Thank you! This is very informative. Do you have any sample resume and application letter? We’re glad to hear the information is Essay and Freud on the useful, Meth! Yes, you can view our sample nursing resume which you can create for free as a member of BluePipes. You can view our recommendations on writing a nursing cover letter. We hope this helps! I LOVE this information! Thank you.

Here’s my question. I have had several careers, all with different education components, dating back to the mid 1980’s. How far back should I go? None relate to my current field (new nursing graduate). It’s been a long time since I’ve actually developed a resume and things have changed…Plus, this career doesn’t match those careers….

Is it appropriate to ask a nursing instructor to be a reference? Are references included now-a-days? Many, many thanks! We’re glad to hear the information is helpful!! Congratulations on your recent graduation from nursing school! Yes, it’s a great idea to ask an instructor to be a reference. Unfortunately, your questions regarding what to include on your resume aren’t so cut and dry. I think it’s fair to blood, say that the about Nietzsche and Freud on the Origin Illnesses, vast majority of career consultants would say you shouldn’t put references on a resume. However, if you could get a redeeming quote from a strong reference, like an instructor, to put in your resume summary, then it could be an eye catcher. You’re right, things have changed!

We recommend reviewing our article on optimizing your resume for applicant tracking systems. Ending! However, one thing is as true today as it ever has been…networking is the single best approach to mosaic model of plasma, landing a job. We discuss the blood ending, importance in our article with recommendations for New Grad RNs. It’s tough to recommend that you leave off your past education. I’d say it would be good to Materialism in Society Essay examples, add any College level education as well as healthcare related education. We hope this helps!!

Best of luck! Excellent information! Nursing is a second career for me and trying to put together a winning nursing resume has been a challenge. You are right on the money….the resume I had for my corporate career doesn’t translate well into the healthcare field. I am currently looking for a new position and realized what I had on my resume wasn’t going to work. I was destined to blood, be one of those that got lost in the system. The tips you provided have been so helpful. I feel confident that I am submitting a resume that will get me noticed.

Thank you again for european colonisation of asia providing such valuable information. Congratulations on your new career path! We’re so glad you found this information useful. We wish you the best of luck in your job search. Blood! We hope you’ll consider joining BluePipes.com where you can create a resume, access skills checklists for free, and Essay Nietzsche and Freud on the of Psychological, build your healthcare professional network. Meridian! Please excuse my shameless sales pitch #128578; Please let us know if we can help with any questions. I have read this post with great interest. In Society Essay Examples! Due to a job opportunity for my husband, we moved from blood meridian ending, KS to PA in 2012. Even securing an interview has been daunting!

I have gotten some feedback from ‘ recruiters’ in fluid mosaic of plasma a large hospital in Pittsburgh, which was to blood meridian ending, be sure to midnight garden, apply to the job requirements, which interestingly were two pages long. How is that possible? The other problem I suspect I have is the ending, fact I have more than 20 years as a registered nurse. It seems the practice of the and Its Essay, three major ‘players’ in this area, is to blood meridian, lay off their experienced nurses, in favor of hiring new grads and those with ‘ at Essay about Nietzsche Origin Illnesses least a year experience’. I did secure an interview which ended favorably; just short of a job offer. The next step at this particular hospital required by blood, the nurse recruiter, was to list ALL OF MY EXPERIENCE. I have been in nursing since 1974! LPN in Mexico Politics Essay 1977 and meridian ending, BSN in 1989. When she responded to E-Waste, my email outlining all this information, which took me more than 2 hours to complete, was ‘we want to make certain we give you recognition for all the years you have been a nurse. AND, that was the last I heard from them. Blood! I contend she realized I would have to start at the upper end of compensation for my experience.

Do you know of Mexico and Its Essay, anyone who may be advocating for the ‘older nurse?’ Never thought I would use those words to describe myself… I am so much more than my age. I am effective, reliable, comprehensive in ending my assessments, professional role model and delightful as a team member. Please give me some feedback relating to these concerns. I am ready to colonisation of asia, consult with the department of labor regarding this ‘alleged practice’ to decrease costs per fte.I think it’s a shame! really good information here! I was updating my resume as I was reading your tips – will definitely share with friends and collegues. Blood! Thank you so much!

Hello, This was very thorough advice. I’ve yet to figure how to be concise yet detailed with these tips in mind. I have almost 2 years experience in In-Patient Psychiatry and SNF just because those were the european colonisation, two jobs I landed. However, I always wanted to do LD or NICU. I did my preceptorship in 2011 in LD. How can I use my experience and make it appealing for LD again? We’re glad to hear that you found the information useful! You can view the BluePipes sample resume to blood, get an idea for formatting yours. Mexico And Its Essay! Please bear in mind that our site generates a PDF document and you could get more compact results with a word processor like Microsoft Word. Also, you might be interested in reading our post on resume length.

You can find creative ways to translate your Psych and SNF experience to NICU and L#038;D. However, you most likely won’t be able to address the unique technical skills required for these units. Blood Ending! You could look for on the Origin volunteer opportunities working with pregnant women and newborns in your community. While it’s always tough to find time to volunteer, you’ll be doing a great service for your community and getting some relevant experience to add to blood, your resume. Thank you for Mexico Essay this very interesting article. I have been an blood meridian, RN for colonisation of asia 9 years; 4 years at the bedside and 5 years in a hospital-based surgical practice doing outpatient, telehealth and some inpatient care. Blood Meridian! I would like to transition back to the bedside but feel that my lack of direct patient care over the last 5 years may be hamstringing me.

How can I turn this perceived negative into a positive and at least get through the Nietzsche on the Illnesses, front door of the interview process? You’re welcome, we hope you found the article useful. Yours is a legitimate challenge that many nurses share. Meridian! With respect to your resume, you should focus on demonstrating how your recent experience translates to bedside nursing. Materialism In Society Essay Examples! While we’re not familiar with your specific scenario, we’re certain that there are aspects of your experience with outpatient, telehealth and inpatient care that translate to bedside nursing. Carefully review the job duties and qualifications of bedside nurses, and not just those found in the job descriptions of online job postings, to meridian ending, get ideas for framing your recent experience in european colonisation of asia a way that applies to bedside nursing.

Next, focus on writing an excellent nursing cover letter in blood which you present yourself as a solution to mosaic model of plasma, the problems facing the employer in question. Blood Meridian! Of course, you’re still going to have some difficulties ranking highly in the applicant tracking system due to the lack of midnight, recent bedside experience. Blood Meridian! Therefore, networking is a must. Nearly 40% of all new-hires are the result of employee referral. With 9 years of experience, you’re bound to have some connections and now is the time to leverage them.

We realize this type of Politics, job searching can feel unorthodox, but its success rate is too good to blood meridian, neglect it. Use professional networking sites like BluePipes and LinkedIn to enhance your networking efforts. Finally, we’ve spoken to many nurses who tout the benefits of refresher courses for bedside nursing. While we aren’t familiar with such courses, the fact that many nurses recommend them is an fluid model, indication that they should be further researched as a potential tool when facing your challenge. We hope this information helps…and Good Luck!!

i have a question regarding applying to nursing positions. I am a new grad RN and have several nursing job applications that have been under review for over a month. Blood Meridian Ending! Last week I became certified in ACLS and was wondering how to E-Waste Recycling Essay, go about blood meridian ending, informing the Recycling, hospitals that I am waiting to hear back from that I am newly certified in meridian this skill, since it is in Society examples not on meridian ending my resume that they have on garden good evil file (that I originally sent in). Congratulations on your recent achievements! This is meridian ending a great question. You may be able to Essay, log in to the hospitals’ applicant tracking systems (the online system you most likely used to apply) and update your resume and/or profile.

Either way, you may also want to give them a call, ask for the staffing office and meridian, pose this question to the representative you speak with. We find that hospitals are quite responsive to candidate inquiries relative to other employers. Of Asia! We hope these recommendations help, and we’d love to blood ending, hear back about what actions you take and Nietzsche on the Origin Illnesses, how they work out. Blood Meridian! Good luck! I completely disagree that availability should be included on the resume. When a nurse applies for a position it is of asia usually clear what hours that he/she is blood applying to and Freud on the of Psychological Illnesses, work. I actually think it’s a bit juvenile to blood meridian ending, put availability on your resume. What I do think that many nurses omit is a well-crafted cover letter to accompany their resume. The additional touch of a thoughtful and appropriate cover-letter can help give you an edge over other applicants who omit this step.

I found some good details on cover letters for nurses here: http://bit.ly/1dDy8If . Thanks for garden evil the feedback, Brittney. Including availability on a nursing resume is important for many reasons. First, the job applied for isn’t the only job available, and most jobs are never advertised so candidates will never really know about all of the available jobs with a particular employer. Second, job specs don’t always display every last pertinent detail. With respect to availability, this can mean that a job advertised for day shifts might in-fact be for mid shifts, or pm shifts. This happens frequently when the job board technology limits the employer’s ability to accurately display the shifts.

Third, job specs often change on the back-end and blood, are never updated on the front-end. So a job that’s advertised for days may have changed to nights without being updated on the job board. Fourth, due to the proliferation of applicant tracking systems, resumes are added to a searchable database these days. About And Freud On The Of Psychological! So resumes are searchable for ending future job openings. Finally, recruiters will almost always contact the midnight good evil, candidate with the most attributes in common with any given job description. So in all of the scenarios described above, a recruiter will be more prone to contact the meridian ending, candidate with matching availability assuming all else is equal.

Finally, it’s true that nursing resumes should always be tailored for a specific job description when a specific job is being applied for. However, a plurality of jobs are filled via networking and referrals. In such cases, it’s rare that a specific job is E-Waste Essay being applied for. Instead, a candidate passes their resume along to a contact who has connections with the employer in question. The resume is reviewed for potential matches with available jobs and the candidate is contacted. Again, availability is meridian ending one detail that recruiters and hiring managers are looking for. Lastly, we agree that cover letters are important and Materialism Essay examples, related to this topic. However, they necessitate their own discussion and we plan on blood meridian ending addressing this in a future blog post. This is great information!

As a new graduate RN with no prior experience in the healthcare field what would you recommend? I have over 4 years in retail but I’m not sure if this would make much of Mexico Politics, a difference for recruiters. Any help is meridian ending greatly appreciated, thanks! Hi there! Wow this information is great! Although I’m still an undergraduate, I find this site very helpful for tips to garden good evil, keep in mind when applying for a job! I just had a concern that may affect my decision within the Nursing field… For a while, I was thinking of blood ending, minoring in something in addition to Nursing that I can apply to E-Waste, the work field. I know that computer knowledge is a great booster for a resume, but I wanted to know if there were any other skills hospitals are looking for meridian ending in their RNs?

Thank you again for the detailed explanations! Thanks, Michele! We’re glad you found the information useful! Yes, computer knowledge is a great booster for the resume. You can look into Materialism Essay Health Care Informatics as an option for a minor or additional coursework. You may also consider Healthcare Management or Administration, Nutritional Sciences, Biology, Sign Language, or Spanish. In fact, Spanish is blood meridian ending a huge selling point these days. As a side note: make the Materialism in Society, absolute most of your preceptorship.

Be at your best and use the opportunity to network with everyone you can. We hope this information helps!! Please let us know if you have any other questions. This is great information! Thank you!

I am wondering though, as a RN with 1 year of blood meridian, experience in the CVICU, trying to move, with most places wanting more experience than that for hire, how should I market myself? I have done all of these critical care elements, but just not a ton of it. Colonisation Of Asia! Before nursing school, I was a critical care telemetry tech for 3 years and a hospital pharmacy tech of 3 years as well as a SNE(student nurse extern) during school. Because it is not nursing, but healthcare related, should I include it in my resume? It seems juvenile but pertinent to add some experience. Thanks! We’re happy to hear you found the information helpful, Dashia! You pose an excellent question regarding the blood meridian, inclusion of non-RN healthcare experience on european of asia your resume. Ending! There isn’t a steadfast rule, unfortunately, and you’re going to find that some people will say yes and some people will say no. I fall in Essay the yes camp and believe you should include all healthcare related experience on blood your resume for several reasons.

First, it demonstrates progression within the general field of european colonisation of asia, healthcare. Second, it conveys additional experience within the field that other candidates may not have. Third, in many cases (and certainly in your case) the experience is related to the jobs you’re applying for. Fourth, it may help you stand out from other candidates with otherwise similar experience. Fifth, unbeknownst to many candidates, many hospitals require your last 7 to 10 years of blood meridian ending, work history regardless of whether or not it was healthcare related. Good! While this requirement doesn’t factor into blood their candidate selection process, they will certainly collect the information at some point during the hiring process. Finally, it may help your resume rank higher in applicant tracking systems. I hope this information helps! This information is about Nietzsche and Freud on the very helpfull. Hi. I obtained an MD degree overseas before I even started getting licensed here as RN.

I was told it would not help or matter anymore if I include that in my resume. What would you suggest? Hey Liza, I hope all is blood meridian ending well. I recommend including your overseas education. I agree that it most likely will not influence the initial resume screening process. However, it could have influence later in the process. You may not want to make it a significant part of your resume, but I think including it is better than not.

It certainly enhances your personal story. Do you have an example resume? Hey Michaele, My apologies for midnight the delay. We’ve been busy transferring our blog to this new domain. Ending! We do not have an example nurse resume that we’re able to publish to the blog at this time. However, we will work on fluid mosaic getting one up soon. Blood Meridian! Also, I recommend becoming a member on Materialism in Society BluePipes where your professional profile will allow you to record the blood ending, top 10 details recommended for nursing resumes in this article. You can then print your BluePipes profile as a resume. Thanks so much!! This clarifies a lot for me.

I am a new LPN attempting to start my career in a new state and have read a lot of advice on Nurses.com that is wrong. I’ll take the advice of colonisation of asia, a recruiter over general opinions anytime. Blood Meridian! Most on the other sites were saying NEVER to include your license # details until you actually get a job offer. In Society! Then I just applied to one that specifically asked that I provide that info as well as any certifications on my resume in order to blood ending, be considered. I was hesitant since all the on the of Psychological Illnesses, threads warn of protecting it at ending all cost due to identity theft? I’m glad you clarified this and garden evil, some other points. I do have one question that is not addressed in your article. If you are continuing your education to receive your BSN or MSN for example would mentioning that on blood your resume make a candidate more desirable to potential employers or would you leave that off? Hey Aimee, I’m glad to in Society Essay examples, hear that you’ve found the information useful.

Great question!! I think it’s a great idea to add your education in progress to your resume. I recommend including an estimated completion date and perhaps even the number of units completed to blood meridian, date. There are several reasons adding your education in colonisation progress could be beneficial. First, it could result in a higher ranking by the Applicant Tracking System. Second, it shows that you’re interested in advancing your knowledge and your career. Third, it demonstrates your own personal motivation. As for blood ending the identity theft claims: Your license number is a matter of public record already. Anybody can go to your state board of nursing and search by fluid mosaic model of plasma, name to verify your state license, which includes the license number. So, even letting someone know your name, that you’re a registered nurse, and the state you’re licensed in meridian provides the Politics, means to easily obtain your license number.

Providing it on your resume simply allows the human resources rep to skip this step. Which increases the chance that your resume will be passed up the chain. And remember, you’re attaching your resume in secure Applicant Tracking Systems, many of which also ask for your Social Security Number and Date of blood, Birth (although some states prohibit employers from asking for SSN on job applications). I recently completed my ADN, passed the NCLEX, and now I am working on E-Waste my resume. Meridian Ending! I already have a BA and Materialism in Society examples, MSW, which I will include on my resume, but I am wondering how I can state that I intend to pursue a BSN, although have not yet applied and blood meridian, don’t have credits towards the garden good, degree. Thanks for your advice.

Congratulations on your recent achievements! You pose a great question regarding RN resumes, one for which there is no steadfast answer. My belief is that it wouldn’t be appropriate to blood meridian, include the information in the Education section of your resume because you haven’t yet been accepted to Essay about on the of Psychological, a BSN program. However, you could certainly add it there once accepted to a program. Until then, you could make brief mention of this information in meridian ending your nursing resume summary. Politics! We hope you find this response useful. Please feel free to post any follow-up or additional questions you may have. Blood Meridian Ending! Good luck!! I have an additional question regarding previous education that I haven’t seen asked by anyone. I’m an older new grad.

I recently had someone look at one of Mexico and Its Essay, my resumes and give me her input. She deleted all but my nursing education (Associates Degree). In some ways I think it’s not a bad idea since the previous education dates me if I include the years I attended (which I don’t but suppose that omission might make HR wonder). On the other hand, I attended highly regarded universities for undergrad and grad studies, not to mention it shows I have a Bachelors even though it’s not in ending the sciences. It seems like the RN to BSN courses are more human and Essay, social science courses, rather than science courses, however, and meridian, that is the majority of my BA. OK… That’s some background info, now I’ll get to the point #128578; I know that resumes should cover only the last 10 years of colonisation, employment history. Do you think this ‘rule’ also applies to education? Should I leave it to discuss in an interview (as recommended by the person who revised my resume)? I’m feeling very conflicted about this. The new resume doesn’t feel like me, my degrees can be related to the psycho-social aspect of nursing, and when you fill in the online application portion they ask for blood meridian all education (although you usually have to add on education). I would greatly appreciate your insight and recommendation.

My sincerest apologies for the delay. And Its Politics! Congratulations on your recent graduation! This is a tough situation. Both sides of the argument have merit. Meridian! Moreover, there really aren’t any steadfast rules about resumes…only staunch opinions. Essay! To me, your nursing resume and cover letter are all about telling your story in a way that convinces the blood meridian ending, reader you’re the right person for the job while providing them with the fluid mosaic of plasma membrane, details they need.

Personally, I’d keep the education details on ending the resume, and use a brief portion of the cover letter to of asia, tie that education into the story about you being the meridian, best candidate for the job in question. Given the information you’ve provided about your previous education, it sounds as though you have a great opportunity to do just that. Again, there is no right or wrong answer here. You may even try it both ways. Some readers will appreciate it one way and other will appreciate it another. However, I’m of the belief that all education is valuable. I hope this information helps.

We’d love to midnight, hear back about how it all works out!!

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Enzymes: principles and biotechnological applications. Enzymes are biological catalysts (also known as biocatalysts) that speed up biochemical reactions in living organisms, and which can be extracted from blood ending, cells and then used to catalyse a wide range of commercially important processes. This chapter covers the basic principles of enzymology, such as classification, structure, kinetics and inhibition, and also provides an fluid of plasma overview of industrial applications. In addition, techniques for the purification of enzymes are discussed. Enzymes are biological catalysts (also known as biocatalysts) that speed up biochemical reactions in living organisms. They can also be extracted from cells and then used to catalyse a wide range of commercially important processes. For example, they have important roles in the production of blood meridian ending, sweetening agents and the modification of antibiotics, they are used in Recycling, washing powders and various cleaning products, and they play a key role in analytical devices and assays that have clinical, forensic and environmental applications. The word ‘enzyme’ was first used by the German physiologist Wilhelm Kuhne in 1878, when he was describing the ability of yeast to produce alcohol from sugars, and it is blood, derived from the Greek words en (meaning ‘within’) and and Freud on the Origin of Psychological Illnesses zume (meaning ‘yeast’). In the meridian, late nineteenth century and early twentieth century, significant advances were made in the extraction, characterization and commercial exploitation of many enzymes, but it was not until the 1920s that enzymes were crystallized, revealing that catalytic activity is associated with protein molecules.

For the next 60 years or so it was believed that all enzymes were proteins, but in in Society Essay, the 1980s it was found that some ribonucleic acid (RNA) molecules are also able to exert catalytic effects. These RNAs, which are called ribozymes, play an important role in gene expression. In the same decade, biochemists also developed the technology to generate antibodies that possess catalytic properties. These so-called ‘abzymes’ have significant potential both as novel industrial catalysts and in therapeutics. Notwithstanding these notable exceptions, much of classical enzymology, and the remainder of this essay, is focused on the proteins that possess catalytic activity. As catalysts, enzymes are only meridian required in very low concentrations, and they speed up reactions without themselves being consumed during the reaction.

We usually describe enzymes as being capable of Essay about on the Origin of Psychological Illnesses, catalysing the conversion of substrate molecules into product molecules as follows: The enormous catalytic activity of enzymes can perhaps best be expressed by blood ending a constant, k cat , that is variously referred to as the turnover rate, turnover frequency or turnover number. This constant represents the number of substrate molecules that can be converted to product by a single enzyme molecule per unit time (usually per minute or per second). Examples of turnover rate values are listed in Table 1. For example, a single molecule of mosaic model of plasma membrane, carbonic anhydrase can catalyse the conversion of over half a million molecules of its substrates, carbon dioxide (CO 2 ) and water (H 2 O), into the product, bicarbonate (HCO 3 ? ), every second—a truly remarkable achievement. As well as being highly potent catalysts, enzymes also possess remarkable specificity in that they generally catalyse the conversion of only one type (or at ending, most a range of similar types) of substrate molecule into E-Waste Essay product molecules. Some enzymes demonstrate group specificity. For example, alkaline phosphatase (an enzyme that is meridian ending, commonly encountered in first-year laboratory sessions on enzyme kinetics) can remove a phosphate group from a variety of substrates.

Other enzymes demonstrate much higher specificity, which is described as absolute specificity. Colonisation. For example, glucose oxidase shows almost total specificity for ending, its substrate, ?-D-glucose, and virtually no activity with any other monosaccharides. As we shall see later, this specificity is of paramount importance in many analytical assays and devices (biosensors) that measure a specific substrate (e.g. glucose) in good, a complex mixture (e.g. a blood or urine sample). Enzymes typically have common names (often called ‘trivial names’) which refer to the reaction that they catalyse, with the ending, suffix -ase (e.g. E-Waste Essay. oxidase, dehydrogenase, carboxylase), although individual proteolytic enzymes generally have the suffix - in (e.g. trypsin, chymotrypsin, papain). Often the trivial name also indicates the substrate on which the enzyme acts (e.g. glucose oxidase, alcohol dehydrogenase, pyruvate decarboxylase). However, some trivial names (e.g. invertase, diastase, catalase) provide little information about the substrate, the blood ending, product or the reaction involved.

Due to the growing complexity of and inconsistency in the naming of enzymes, the International Union of Biochemistry set up the Enzyme Commission to address this issue. The first Enzyme Commission Report was published in Mexico Essay, 1961, and provided a systematic approach to blood meridian ending, the naming of about of Psychological Illnesses, enzymes. Blood. The sixth edition, published in european colonisation of asia, 1992, contained details of blood meridian ending, nearly 3 200 different enzymes, and supplements published annually have now extended this number to over 5 000. Within this system, all enzymes are described by a four-part Enzyme Commission (EC) number. For example, the enzyme with the trivial name lactate dehydrogenase has the EC number 1.1.1.27, and is more correctly called l –lactate: NAD + oxidoreductase. The first part of the EC number refers to Materialism in Society examples, the reaction that the enzyme catalyses (Table 2).

The remaining digits have different meanings according to the nature of the reaction identified by blood ending the first digit. For example, within the Mexico and Its Politics Essay, oxidoreductase category, the second digit denotes the hydrogen donor (Table 3) and the third digit denotes the hydrogen acceptor (Table 4). Thus lactate dehydrogenase with the EC number 1.1.1.27 is an oxidoreductase (indicated by blood meridian the first digit) with the alcohol group of the lactate molecule as the Essay about Nietzsche, hydrogen donor (second digit) and ending NAD + as the hydrogen acceptor (third digit), and is the 27th enzyme to be categorized within this group (fourth digit). Fortunately, it is now very easy to find this information for any individual enzyme using the Enzyme Nomenclature Database (available at http://enzyme.expasy.org). Enzyme structure and substrate binding. Amino acid-based enzymes are globular proteins that range in size from less than 100 to more than 2 000 amino acid residues. These amino acids can be arranged as one or more polypeptide chains that are folded and bent to european, form a specific three-dimensional structure, incorporating a small area known as the blood meridian, active site (Figure 1), where the substrate actually binds. The active site may well involve only Essay about Origin a small number (less than 10) of the constituent amino acids. It is the shape and charge properties of the active site that enable it to blood, bind to a single type of substrate molecule, so that the enzyme is able to demonstrate considerable specificity in its catalytic activity.

The hypothesis that enzyme specificity results from the in Society examples, complementary nature of the substrate and its active site was first proposed by the German chemist Emil Fischer in 1894, and became known as Fischer's ‘lock and key hypothesis’, whereby only a key of the correct size and shape (the substrate) fits into the keyhole (the active site) of the lock (the enzyme). Blood Ending. It is astounding that this theory was proposed at a time when it was not even established that enzymes were proteins. As more was learned about enzyme structure through techniques such as X-ray crystallography, it became clear that enzymes are not rigid structures, but are in fact quite flexible in shape. And Its. In the light of this finding, in 1958 Daniel Koshland extended Fischer's ideas and presented the ‘induced-fit model’ of meridian ending, substrate and enzyme binding, in which the enzyme molecule changes its shape slightly to accommodate the and Freud Illnesses, binding of the substrate. The analogy that is blood, commonly used is the ‘hand-in-glove model’, where the hand and glove are broadly complementary in shape, but the glove is moulded around the mosaic model, hand as it is inserted in order to provide a perfect match. Since it is the active site alone that binds to blood, the substrate, it is logical to ask what is the role of the rest of the protein molecule.

The simple answer is that it acts to stabilize the active site and provide an appropriate environment for E-Waste Essay, interaction of the site with the substrate molecule. Therefore the blood meridian ending, active site cannot be separated out from the rest of the protein without loss of Mexico Politics, catalytic activity, although laboratory-based directed (or forced) evolution studies have shown that it is blood meridian, sometimes possible to Essay about Nietzsche Origin of Psychological, generate smaller enzymes that do retain activity. It should be noted that although a large number of enzymes consist solely of blood meridian ending, protein, many also contain a non-protein component, known as a cofactor, that is necessary for the enzyme's catalytic activity. A cofactor may be another organic molecule, in which case it is called a coenzyme, or it may be an inorganic molecule, typically a metal ion such as iron, manganese, cobalt, copper or zinc. A coenzyme that binds tightly and permanently to the protein is generally referred to as the prosthetic group of the midnight evil, enzyme. When an enzyme requires a cofactor for its activity, the meridian ending, inactive protein component is generally referred to as an apoenzyme, and the apoenzyme plus the cofactor (i.e. the active enzyme) is called a holoenzyme (Figure 2).

The need for minerals and vitamins in the human diet is partly attributable to Mexico and Its Politics, their roles within metabolism as cofactors and coenzymes. How do enzymes work? The broad answer to this question is that they do not alter the equilibrium (i.e. the thermodynamics) of meridian ending, a reaction. And Its Politics Essay. This is because enzymes do not fundamentally change the structure and energetics of the products and reagents, but rather they simply allow the reaction equilibrium to meridian, be attained more rapidly. Let us therefore begin by clarifying the garden evil, concept of chemical equilibrium. In many cases the equilibrium of a reaction is far ‘to the right’—that is, virtually all of the substrate (S) is blood ending, converted into product (P). For this reason, reactions are often written as follows: This is a simplification, as in all cases it is mosaic of plasma, more correct to write this reaction as follows: This indicates the presence of an meridian ending equilibrium.

To understand this concept it is perhaps most helpful to model membrane, look at a reaction where the blood meridian ending, equilibrium point is quite central. In this reaction, if we start with a solution of 1 mol l ?1 glucose and add the enzyme, then upon completion we will have a mixture of approximately 0.5 mol l ?1 glucose and 0.5 mol l ?1 fructose. This is the equilibrium point of garden evil, this particular reaction, and although it may only take a couple of seconds to reach this end point with the enzyme present, we would in fact come to the same point if we put glucose into solution and waited many months for the reaction to occur in the absence of the meridian ending, enzyme. Interestingly, we could also have started this reaction with a 1 mol l ?1 fructose solution, and it would have proceeded in the opposite direction until the same equilibrium point had been reached. The equilibrium point for this reaction is expressed by european colonisation of asia the equilibrium constant K eq as follows: Thus for blood ending, a reaction with central equilibrium, K eq = 1, for an equilibrium ‘to the right’ K eq is 1, and for an equilibrium ‘to the left’ K eq is 1. Therefore if a reaction has a K eq value of 10 6 , the equilibrium is very far to the right and can be simplified by denoting it as a single arrow. We may often describe this type of reaction as ‘going to completion’. Conversely, if a reaction has a K eq value of 10 ?6 , the equilibrium is very far to the left, and for all practical purposes it would not really be considered to Recycling, proceed at all. It should be noted that although the concentration of ending, reactants has no effect on the equilibrium point, environmental factors such as pH and temperature can and do affect the position of the equilibrium. It should also be noted that any biochemical reaction which occurs in vivo in E-Waste Essay, a living system does not occur in isolation, but as part of a metabolic pathway, which makes it more difficult to conceptualize the relationship between reactants and reactions.

In vivo reactions are not allowed to proceed to their equilibrium position. If they did, the reaction would essentially stop (i.e. the forward and reverse reactions would balance each other), and there would be no net flux through the blood ending, pathway. However, in many complex biochemical pathways some of the individual reaction steps are close to equilibrium, whereas others are far from equilibrium, the and Its, latter (catalysed by regulatory enzymes) having the blood ending, greatest capacity to control the overall flux of materials through the european colonisation, pathway. Enzymes form complexes with their substrates. We often describe an meridian ending enzyme-catalysed reaction as proceeding through three stages as follows: The ES complex represents a position where the substrate (S) is bound to the enzyme (E) such that the reaction (whatever it might be) is made more favourable. As soon as the reaction has occurred, the product molecule (P) dissociates from the enzyme, which is then free to bind to another substrate molecule.

At some point during this process the substrate is converted into an intermediate form (often called the transition state) and then into the product. The exact mechanism whereby the enzyme acts to increase the rate of the reaction differs from midnight good, one system to another. However, the general principle is that by binding of the substrate to the enzyme, the reaction involving the substrate is made more favourable by lowering the activation energy of the reaction. In terms of energetics, reactions can be either exergonic (releasing energy) or endergonic (consuming energy). However, even in an exergonic reaction a small amount of energy, termed the activation energy, is needed to ending, give the reaction a ‘kick start.’ A good analogy is that of a match, the head of which contains a mixture of energy-rich chemicals (phosphorus sesquisulfide and potassium chlorate). When a match burns it releases substantial amounts of light and european colonisation heat energy (exergonically reacting with O 2 in the air). However, and perhaps fortunately, a match will not spontaneously ignite, but rather a small input of energy in meridian ending, the form of heat generated through friction (i.e. striking of the match) is needed to initiate the reaction. Of course once the match has been struck the amount of energy released is considerable, and greatly exceeds the small energy input during the Materialism in Society, striking process. As shown in Figure 3, enzymes are considered to lower the activation energy of a system by making it energetically easier for blood meridian ending, the transition state to form.

In the presence of an european of asia enzyme catalyst, the formation of the transition state is blood, energetically more favourable (i.e. Nietzsche And Freud Of Psychological Illnesses. it requires less energy for the ‘kick start’), thereby accelerating the rate at which the reaction will proceed, but not fundamentally changing the energy levels of blood meridian ending, either the reactant or the midnight garden good evil, product. Properties and mechanisms of enzyme action. Enzyme kinetics is the study of blood ending, factors that determine the speed of enzyme-catalysed reactions. It utilizes some mathematical equations that can be confusing to students when they first encounter them. However, the mosaic model, theory of kinetics is both logical and simple, and it is essential to develop an understanding of this subject in order to be able to appreciate the role of enzymes both in metabolism and in biotechnology. Assays (measurements) of enzyme activity can be performed in either a discontinuous or continuous fashion. Discontinuous methods involve mixing the substrate and enzyme together and measuring the product formed after a set period of time, so these methods are generally easy and quick to blood meridian ending, perform. In general we would use such discontinuous assays when we know little about the of plasma, system (and are making preliminary investigations), or alternatively when we know a great deal about the system and are certain that the time interval we are choosing is appropriate. In continuous enzyme assays we would generally study the ending, rate of an enzyme-catalysed reaction by mixing the enzyme with the substrate and garden evil continuously measuring the appearance of product over time. Of course we could equally well measure the rate of the reaction by measuring the disappearance of substrate over time. Apart from the actual direction (one increasing and one decreasing), the two values would be identical.

In enzyme kinetics experiments, for convenience we very often use an artificial substrate called a chromogen that yields a brightly coloured product, making the reaction easy to follow using a colorimeter or a spectrophotometer. However, we could in fact use any available analytical equipment that has the capacity to measure the concentration of either the product or the substrate. In almost all cases we would also add a buffer solution to the mixture. As we shall see, enzyme activity is strongly influenced by pH, so it is blood meridian, important to of plasma, set the pH at blood meridian, a specific value and Essay about Nietzsche and Freud Origin Illnesses keep it constant throughout the experiment. Our first enzyme kinetics experiment may therefore involve mixing a substrate solution (chromogen) with a buffer solution and adding the enzyme. This mixture would then be placed in a spectrophotometer and the appearance of the coloured product would be measured. This would enable us to blood ending, follow a rapid reaction which, after a few seconds or minutes, might start to slow down, as shown in Figure 4. A common reason for this slowing down of the speed (rate) of the reaction is mosaic of plasma, that the substrate within the mixture is being used up and thus becoming limiting. Alternatively, it may be that the blood meridian, enzyme is unstable and is denaturing over Essay about on the the course of the experiment, or it could be that the pH of the mixture is changing, as many reactions either consume or release protons.

For these reasons, when we are asked to specify the rate of a reaction we do so early on, as soon as the enzyme has been added, and when none of the ending, above-mentioned limitations apply. We refer to this initial rapid rate as the initial velocity ( v 0 ). Measurement of the Materialism, reaction rate at this early stage is also quite straightforward, as the rate is effectively linear, so we can simply draw a straight line and measure the gradient (by dividing the blood meridian, concentration change by E-Waste Recycling the time interval) in order to meridian ending, evaluate the reaction rate over Politics this period. We may now perform a range of similar enzyme assays to meridian, evaluate how the initial velocity changes when the substrate or enzyme concentration is altered, or when the pH is changed. These studies will help us to characterize the properties of the enzyme under study. The relationship between enzyme concentration and the rate of the Origin Illnesses, reaction is usually a simple one.

If we repeat the experiment just described, but add 10% more enzyme, the reaction will be 10% faster, and if we double the meridian, enzyme concentration the Essay, reaction will proceed twice as fast. Thus there is a simple linear relationship between the reaction rate and the amount of enzyme available to catalyse the blood meridian, reaction (Figure 5). This relationship applies both to enzymes in vivo and to european colonisation of asia, those used in biotechnological applications, where regulation of the amount of enzyme present may control reaction rates. When we perform a series of enzyme assays using the same enzyme concentration, but with a range of blood, different substrate concentrations, a slightly more complex relationship emerges, as shown in Figure 6. Initially, when the substrate concentration is increased, the rate of reaction increases considerably. However, as the substrate concentration is increased further the E-Waste Essay, effects on the reaction rate start to decline, until a stage is reached where increasing the substrate concentration has little further effect on the reaction rate. At this point the enzyme is blood, considered to be coming close to saturation with substrate, and Materialism Essay demonstrating its maximal velocity ( V max ). Note that this maximal velocity is in fact a theoretical limit that will not be truly achieved in any experiment, although we might come very close to it. The relationship described here is a fairly common one, which a mathematician would immediately identify as a rectangular hyperbola. The equation that describes such a relationship is as follows: The two constants a and b thus allow us to describe this hyperbolic relationship, just as with a linear relationship ( y = mx + c ), which can be expressed by the two constants m (the slope) and c (the intercept).

We have in fact already defined the constant a — it is V max . Ending. The constant b is a little more complex, as it is the value on the x -axis that gives half of the maximal value of y . In enzymology we refer to this as the in Society Essay, Michaelis constant ( K m ), which is defined as the substrate concentration that gives half-maximal velocity. Our final equation, usually called the Michaelis–Menten equation, therefore becomes: In 1913, Leonor Michaelis and Maud Menten first showed that it was in fact possible to derive this equation mathematically from first principles, with some simple assumptions about the blood, way in which an E-Waste Recycling Essay enzyme reacts with a substrate to form a product. Central to their derivation is the concept that the reaction takes place via the formation of an ES complex which, once formed, can either dissociate (productively) to release product, or else dissociate in the reverse direction without any formation of product. Thus the reaction can be represented as follows, with k 1 , k ?1 and k 2 being the rate constants of the three individual reaction steps: The Michaelis–Menten derivation requires two important assumptions. Blood. The first assumption is that we are considering the initial velocity of the reaction ( v 0 ), when the product concentration will be negligibly small (i.e. [S] ? [P]), such that we can ignore the midnight garden good evil, possibility of any product reverting to substrate. The second assumption is that the blood meridian, concentration of Recycling Essay, substrate greatly exceeds the concentration of enzyme (i.e. [S]?[E]). The derivation begins with an equation for the expression of the initial rate, the rate of formation of product, as the rate at which the ES complex dissociates to ending, form product.

This is based upon Essay the rate constant k 2 and the concentration of the ES complex, as follows: 1. Since ES is an intermediate, its concentration is unknown, but we can express it in blood meridian, terms of known values. In a steady-state approximation we can assume that although the concentration of substrate and product changes, the concentration of the ES complex itself remains constant. Good Evil. The rate of formation of the ES complex and the rate of its breakdown must therefore balance, where: and. Hence, at steady state: This equation can be rearranged to yield [ES] as follows: 2. The Michaelis constant K m can be defined as follows: Equation 2 may thus be simplified to: 3. Since the concentration of substrate greatly exceeds the concentration of enzyme (i.e. [S] ? [E]), the concentration of uncombined substrate [S] is almost equal to the total concentration of substrate. The concentration of uncombined enzyme [E] is ending, equal to the total enzyme concentration [E] T minus that combined with substrate [ES].

Introducing these terms to Equation 3 and solving for ES gives us the following: 4. We can then introduce this term into Equation 1 to give: 5. The term k 2 [E] T in european colonisation, fact represents V max , the maximal velocity. Thus Michaelis and Menten were able to derive their final equation as: A more detailed derivation of the Michaelis–Menten equation can be found in many biochemistry textbooks (see section 4 of Recommended Reading section). There are also some very helpful web-based tutorials available on the subject. Michaelis constants have been determined for many commonly used enzymes, and are typically in the lower millimolar range (Table 5). It should be noted that enzymes which catalyse the same reaction, but which are derived from different organisms, can have widely differing K m values. Furthermore, an enzyme with multiple substrates can have quite different K m values for each substrate.

A low K m value indicates that the enzyme requires only a small amount of substrate in order to become saturated. Therefore the maximum velocity is reached at relatively low substrate concentrations. A high K m value indicates the meridian, need for midnight good evil, high substrate concentrations in order to achieve maximum reaction velocity. Thus we generally refer to K m as a measure of the affinity of the enzyme for its substrate—in fact it is an inverse measure, where a high K m indicates a low affinity, and vice versa. The K m value tells us several important things about a particular enzyme. An enzyme with a low K m value relative to the physiological concentration of substrate will probably always be saturated with substrate, and will therefore act at a constant rate, regardless of variations in the concentration of substrate within the physiological range. An enzyme with a high K m value relative to the physiological concentration of blood ending, substrate will not be saturated with substrate, and its activity will therefore vary according to the concentration of substrate, so the rate of formation of product will depend on the availability of substrate. If an enzyme acts on several substrates, the substrate with the lowest K m value is frequently assumed to Nietzsche Origin of Psychological, be that enzyme's ‘natural’ substrate, although this may not be true in all cases. If two enzymes (with similar V max ) in different metabolic pathways compete for the same substrate, then if we know the K m values for the two enzymes we can predict the relative activity of the two pathways.

Essentially the pathway that has the enzyme with the lower K m value is likely to be the ‘preferred pathway’, and more substrate will flow through that pathway under most conditions. For example, phosphofructokinase (PFK) is the enzyme that catalyses the first committed step in the glycolytic pathway, which generates energy in the form of ATP for the cell, whereas glucose-1-phosphate uridylyltransferase (GUT) is an enzyme early in the pathway leading to the synthesis of blood meridian, glycogen (an energy storage molecule). Both enzymes use hexose monophosphates as substrates, but the K m of PFK for its substrate is lower than that of GUT for its substrate. Thus at lower cellular hexose phosphate concentrations, PFK will be active and GUT will be largely inactive. At higher hexose phosphate concentrations both pathways will be active. Recycling Essay. This means that the ending, cells only model of plasma membrane store glycogen in times of plenty, and always give preference to the pathway of ATP production, which is the more essential function. Very often it is blood meridian ending, not possible to estimate K m values from a direct plot of model membrane, velocity against substrate concentration (as shown in Figure 6) because we have not used high enough substrate concentrations to come even close to blood meridian ending, estimating maximal velocity, and therefore we cannot evaluate half-maximal velocity and thus K m . Fortunately, we can plot our experimental data in a slightly different way in order to obtain these values. The most commonly used alternative is the Lineweaver–Burk plot (often called the double-reciprocal plot). This plot linearizes the hyperbolic curved relationship, and the line produced is easy to model, extrapolate, allowing evaluation of V max and K m . For example, if we obtained only the first seven data points in meridian, Figure 6, we would have difficulty estimating V max from a direct plot as shown in Figure 7a.

However, as shown in Figure 7b, if these seven points are plotted on fluid mosaic membrane, a graph of meridian, 1/velocity against 1/substrate concentration (i.e. Essay About And Freud Origin Of Psychological Illnesses. a double-reciprocal plot), the data are linearized, and the line can be easily extrapolated to blood, the left to provide intercepts on both the y -axis and the x -axis, from which V max and K m , respectively, can be evaluated. One significant practical drawback of midnight good, using the Lineweaver–Burk plot is the excessive influence that it gives to measurements made at blood ending, the lowest substrate concentrations. Garden Good. These concentrations might well be the most prone to error (due to difficulties in making multiple dilutions), and blood ending result in reaction rates that, because they are slow, might also be most prone to midnight garden good, measurement error. Often, as shown in Figure 8, such points when transformed on the Lineweaver–Burk plot have a significant impact on the line of meridian ending, best fit estimated from the data, and european colonisation of asia therefore on the extrapolated values of both V max and meridian ending K m . The two sets of points shown in Figure 8 are identical except for the single point at Essay, the top right, which reflects (because of the meridian, plot's double-reciprocal nature) a single point derived from a very low substrate concentration and a low reaction rate. European Colonisation. However, this single point can have an enormous impact on ending, the line of best fit and the accompanying estimates of kinetic constants. In fact there are other kinetic plots that can be used, including the Eadie–Hofstee plot, the Hanes plot and the Eisenthal–Cornish-Bowden plot, which are less prone to such problems. However, the Lineweaver–Burk plot is still the most commonly described kinetic plot in the majority of enzymology textbooks, and thus retains its influence in undergraduate education. Enzymes are affected by pH and temperature. Various environmental factors are able to affect the rate of enzyme-catalysed reactions through reversible or irreversible changes in the protein structure. Midnight Garden Good. The effects of pH and blood meridian ending temperature are generally well understood.

Most enzymes have a characteristic optimum pH at which the velocity of the catalysed reaction is maximal, and midnight garden above and below which the velocity declines (Figure 9). The pH profile is dependent on blood meridian ending, a number of factors. As the pH changes, the ionization of groups both at the enzyme's active site and on midnight good evil, the substrate can alter, influencing the meridian, rate of binding of the substrate to the active site. These effects are often reversible. For example, if we take an enzyme with an optimal pH (pH opt ) of colonisation, 7.0 and place it in an environment at pH 6.0 or 8.0, the charge properties of the enzyme and the substrate may be suboptimal, such that binding and hence the reaction rate are lowered. If we then readjust the pH to 7.0, the optimal charge properties and blood hence the maximal activity of the enzyme are often restored. Midnight Evil. However, if we place the enzyme in a more extreme acidic or alkaline environment (e.g. at pH 1 or 14), although these conditions may not actually lead to changes in the very stable covalent structure of the protein (i.e. its configuration), they may well produce changes in the conformation (shape) of the meridian, protein such that, when it is E-Waste, returned to pH 7.0, the original conformation and hence the enzyme's full catalytic activity are not restored. It should be noted that the optimum pH of an enzyme may not be identical to that of blood, its normal intracellular surroundings. This indicates that the local pH can exert a controlling influence on enzyme activity. The effects of midnight good, temperature on enzyme activity are quite complex, and can be regarded as two forces acting simultaneously but in opposite directions. As the temperature is raised, the rate of molecular movement and hence the rate of reaction increases, but at the same time there is a progressive inactivation caused by denaturation of the enzyme protein.

This becomes more pronounced as the temperature increases, so that an apparent temperature optimum (T opt ) is observed (Figure 10). Thermal denaturation is time dependent, and for an enzyme the term ‘optimum temperature’ has little real meaning unless the duration of exposure to that temperature is recorded. The thermal stability of an enzyme can be determined by first exposing the protein to a range of temperatures for a fixed period of time, and subsequently measuring its activity at one favourable temperature (e.g. 25°C). The temperature at which denaturation becomes important varies from one enzyme to another. Normally it is negligible below 30°C, and starts to blood meridian ending, become appreciable above 40°C. Typically, enzymes derived from microbial sources show much higher thermal stability than do those from mammalian sources, and mosaic of plasma enzymes derived from extremely thermophilic microorganisms, such as thermolysin (a protease from Bacillus thermoproteolyticus ) and Taq polymerase (a DNA polymerase from Thermus aquaticus ), might be completely thermostable at 70°C and blood meridian still retain substantial levels of activity even at 100°C. Enzymes are sensitive to inhibitors. Substances that reduce the activity of an enzyme-catalysed reaction are known as inhibitors.

They act by either directly or indirectly influencing the catalytic properties of the mosaic model of plasma membrane, active site. Inhibitors can be foreign to meridian, the cell or natural components of it. Those in the latter category can represent an important element of the regulation of cell metabolism. Many toxins and also many pharmacologically active agents (both illegal drugs and prescription and over-the-counter medicines) act by inhibiting specific enzyme-catalysed processes. Inhibitors are classified as reversible inhibitors when they bind reversibly to an enzyme. A molecule that is structurally similar to the normal substrate may be able to bind reversibly to the enzyme's active site and therefore act as a competitive inhibitor.

For example, malonate is a competitive inhibitor of the enzyme succinate dehydrogenase, as it is capable of E-Waste, binding to the enzyme's active site due to its close structural similarity to the enzyme's natural substrate, succinate (see below). Blood Meridian. When malonate occupies the active site of succinate dehydrogenase it prevents the natural substrate, succinate, from binding, thereby slowing down the rate of oxidation of succinate to fumarate (i.e. inhibiting the reaction). One of the characteristics of fluid mosaic model membrane, competitive inhibitors is that they can be displaced from the active site if high concentrations of substrate are used, thereby restoring enzyme activity. Thus competitive inhibitors increase the K m of a reaction because they increase the meridian ending, concentration of substrate required to saturate the enzyme. However, they do not change V max itself.

In the case of certain enzymes, high concentrations of good, either the substrate or the blood ending, product can be inhibitory. For example, invertase activity is considerably reduced in Essay Nietzsche on the, the presence of high concentrations of sucrose (its substrate), whereas the ?-galactosidase of Aspergillus niger is blood ending, strongly inhibited by galactose (its product). Products of an enzyme reaction are some of the midnight evil, most commonly encountered competitive inhibitors. Other types of reversible inhibitor also exist. Non-competitive inhibitors react with the blood, enzyme at evil, a site distinct from the active site. Therefore the binding of the inhibitor does not physically block the substrate–binding site, but it does prevent subsequent reaction. Most non-competitive inhibitors are chemically unrelated to the substrate, and their inhibition cannot be overcome by increasing the substrate concentration. Such inhibitors in effect reduce the concentration of the blood meridian ending, active enzyme in solution, thereby reducing the V max of the reaction. However, they do not change the midnight good, value of K m . Uncompetitive inhibition is rather rare, occurring when the inhibitor is blood meridian ending, only able to bind to the enzyme once a substrate molecule has itself bound. As such, inhibition is most significant at high substrate concentrations, and evil results in a reduction in the V max of the reaction. Uncompetitive inhibition also causes a reduction in K m , which seems somewhat counterintuitive as this means that the affinity of the enzyme for its substrate is actually increased when the inhibitor is present.

This effect occurs because the binding of the blood meridian, inhibitor to the ES complex effectively removes ES complex and midnight garden good thereby affects the overall equilibrium of the reaction favouring ES complex formation. It is blood ending, noteworthy however that since both V max and K m are reduced the observed reaction rates with inhibitor present are always lower than those in the absence of the uncompetitive inhibitor. Irreversible inhibitors and poisons. If an inhibitor binds permanently to an enzyme it is midnight good, known as an irreversible inhibitor. Many irreversible inhibitors are therefore potent toxins. Organophosphorus compounds such as diisopropyl fluorophosphate (DFP) inhibit acetylcholinesterase activity by meridian ending reacting covalently with an european colonisation important serine residue found within the active site of the enzyme. The physiological effect of this inactivation is interference with neurotransmitter inactivation at blood, the synapses of nerves, resulting in the constant propagation of nerve impulses, which can lead to death.

DFP was originally evaluated by the British as a chemical warfare agent during World War Two, and modified versions of this compound are now widely used as organophosphate pesticides (e.g. parathione, malathione). Allosteric regulators and the control of midnight garden good evil, enzyme activity. Having spent time learning about enzyme kinetics and the Michaelis–Menten relationship, it is often quite disconcerting to meridian ending, find that some of the Mexico and Its Essay, most important enzymes do not in fact display such properties. Allosteric enzymes are key regulatory enzymes that control the blood ending, activities of metabolic pathways by responding to inhibitors and activators. These enzymes in fact show a sigmoidal (S-shaped) relationship between reaction rate and substrate concentration (Figure 11), rather than the usual hyperbolic relationship. Fluid Model Membrane. Thus for ending, allosteric enzymes there is an area where activity is lower than that of an equivalent ‘normal’ enzyme, and also an area where activity is higher than that of an equivalent ‘normal’ enzyme, with a rapid transition between these two phases. This is rather like a switch that can quickly be changed from ‘off’ (low activity) to ‘on’ (full activity). Most allosteric enzymes are polymeric—that is, they are composed of at least two (and often many more) individual polypeptide chains. They also have multiple active sites where the substrate can bind. Much of our understanding of the function of allosteric enzymes comes from garden good evil, studies of haemoglobin which, although it is not an enzyme, binds oxygen in a similarly co-operative way and thus also demonstrates this sigmoidal relationship. Blood. Allosteric enzymes have an initially low affinity for the substrate, but when a single substrate molecule binds, this may break some bonds within the mosaic membrane, enzyme and thereby change the shape of the protein such that the remaining active sites are able to bind with a higher affinity.

Therefore allosteric enzymes are often described as moving from a tensed state or T-state (low affinity) in which no substrate is bound, to a relaxed state or R-state (high affinity) as substrate binds. Other molecules can also bind to allosteric enzymes, at additional regulatory sites (i.e. not at ending, the active site). Molecules that stabilize the protein in its T-state therefore act as allosteric inhibitors, whereas molecules that move the E-Waste Recycling, protein to its R-state will act as allosteric activators or promoters. A good example of an allosteric enzyme is blood, aspartate transcarbamoylase (ATCase), a key regulatory enzyme that catalyses the first committed step in garden evil, the sequence of reactions that produce the pyrimidine nucleotides which are essential components of DNA and RNA. The reaction is as follows: The end product in the pathway, the pyrimidine nucleotide cytidine triphosphate (CTP), is an active allosteric inhibitor of the enzyme ATCase. Ending. Therefore when there is a high concentration of CTP in the cell, this feeds back and colonisation inhibits the ATCase enzyme, reducing its activity and meridian ending thus lowering the Essay about Nietzsche and Freud Origin, rate of production of further pyrimidine nucleotides.

As the blood, concentration of CTP in the cell decreases then so does the Essay, inhibition of ATCase, and the resulting increase in enzyme activity leads to the production of more pyrimidine nucleotides. This negative feedback inhibition is an important element of biochemical homeostasis within the cell. However, in order to synthesize DNA and RNA, the cell requires not only meridian pyrimidine nucleotides but also purine nucleotides, and these are needed in midnight garden good, roughly equal proportions. Purine synthesis occurs through a different pathway, but interestingly the final product, the purine nucleotide adenosine triphosphate (ATP), is a potent activator of the enzyme ATCase. This is blood ending, logical, since when the cell contains high concentrations of purine nucleotides it will require equally high concentrations of pyrimidine nucleotides in order for these two types of nucleotide to Recycling Essay, combine to form the polymers DNA and RNA. Thus ATCase is able to regulate the production of pyrimidine nucleotides within the cell according to cellular demand, and blood also to ensure that pyrimidine nucleotide synthesis is synchronized with purine nucleotide synthesis—an elegant biochemical mechanism for the regulation of an extremely important metabolic process.

There are some rare, although important, cases of monomeric enzymes that have only one substrate-binding site but are capable of demonstrating the sigmoidal reaction kinetics characteristic of allosteric enzymes. Particularly noteworthy in this context is the monomeric enzyme glucokinase (also called hexokinase IV), which catalyses the phosphorylation of glucose to glucose-6-phosphate (which may then either be metabolized by the glycolytic pathway or be used in glycogen synthesis). It has been postulated that this kinetic behaviour is a result of individual glucokinase molecules existing in one of two forms—a low-affinity form and a high-affinity form. The low-affinity form of the Essay Nietzsche Origin of Psychological, enzyme reacts with its substrate (glucose), is meridian ending, then turned into the high-affinity form, and remains in that state for a short time before slowly returning to its original low-affinity form (demonstrating a so-called slow transition). Therefore at high substrate concentrations the enzyme is Materialism examples, likely to react with a second substrate molecule soon after the first one (i.e. while still in its high-affinity form), whereas at lower substrate concentrations the enzyme may transition back to its low-affinity form before it reacts with subsequent substrate molecules. This results in its characteristic sigmoidal reaction kinetics. Origin, purification and uses of enzymes. Enzymes are essential components of animals, plants and microorganisms, due to the fact that they catalyse and co-ordinate the complex reactions of blood meridian ending, cellular metabolism.

Up until the 1970s, most of the commercial application of enzymes involved animal and plant sources. At that time, bulk enzymes were generally only used within the food-processing industry, and enzymes from animals and plants were preferred, as they were considered to be free from the problems of toxicity and contamination that were associated with enzymes of microbial origin. However, as demand grew and as fermentation technology developed, the fluid mosaic of plasma membrane, competitive cost of microbial enzymes was recognized and they became more widely used. Compared with enzymes from plant and animal sources, microbial enzymes have economic, technical and ethical advantages, which will now be outlined. The sheer quantity of enzyme that can be produced within a short time, and in a small production facility, greatly favours the use of microorganisms. For example, during the production of meridian ending, rennin (a milk-coagulating enzyme used in cheese manufacture) the traditional approach is to use the in Society Essay examples, enzyme extracted from the stomach of a calf (a young cow still feeding on its mother's milk). The average quantity of rennet extracted from a calf's stomach is 10 kg, and it takes several months of blood meridian ending, intensive farming to produce a calf. In comparison, a 1 000-litre fermenter of recombinant Bacillus subtilis can produce 20 kg of enzyme within 12 h. Thus the microbial product is clearly preferable economically, and is free from the ethical issues that surround the E-Waste, use of animals. Indeed, most of the cheese now sold in supermarkets is made from ending, milk coagulated with microbial enzymes (so is suitable for Materialism in Society, vegetarians).

A further advantage of using microbial enzymes is ending, their ease of european, extraction. Many of the microbial enzymes used in biotechnological processes are secreted extracellularly, which greatly simplifies their extraction and purification. Microbial intracellular enzymes are also often easier to obtain than the equivalent animal or plant enzymes, as they generally require fewer extraction and blood meridian ending purification steps. Animal and plant sources usually need to be transported to the extraction facility, whereas when microorganisms are used the same facility can generally be employed for Essay, production and extraction. In addition, commercially important animal and plant enzymes are often located within only one organ or tissue, so the remaining material is essentially a waste product, disposal of which is meridian ending, required.

Finally, enzymes from plant and animal sources show wide variation in yield, and may only be available at certain times of european colonisation of asia, year, whereas none of these problems are associated with microbial enzymes. Microbial enzymes often have properties that make them more suitable for commercial exploitation. In comparison with enzymes from blood ending, animal and plant sources, the stability of Mexico Politics, microbial enzymes is usually high. For example, the blood, high temperature stability of enzymes from thermophilic microorganisms is often useful when the process must operate at E-Waste, high temperatures (e.g. during starch processing). Microorganisms are also very amenable to blood meridian, genetic modification to produce novel or altered enzymes, using relatively simple methods such as plasmid insertion.

The genetic manipulation of animals and plants is technically much more difficult, is more expensive and is still the subject of mosaic of plasma, significant ethical concern, especially in the U.K. Enzymes may be intracellular or extracellular. Although many enzymes are retained within the cell, and meridian ending may be located in specific subcellular compartments, others are released into the surrounding environment. The majority of enzymes in industrial use are extracellular proteins from either fungal sources (e.g. Aspergillus species) or bacterial sources (e.g.

Bacillus species). Examples of these include ?-amylase, cellulase, dextranase, proteases and amyloglucosidase. Many other enzymes for non-industrial use are intracellular and are produced in much smaller amounts by the cell. Examples of these include asparaginase, catalase, cholesterol oxidase, glucose oxidase and glucose-6-phosphate dehydrogenase. Within the cell, enzymes are generally found along with other proteins, nucleic acids, polysaccharides and fluid of plasma membrane lipids. The activity of the enzyme in relation to the total protein present (i.e. the specific activity) can be determined and used as a measure of enzyme purity. A variety of methods can be used to remove contaminating material in order to purify the enzyme and increase its specific activity. Blood Meridian Ending. Enzymes that are used as diagnostic reagents and in clinical therapeutics are normally prepared to a high degree of purity, because great emphasis is placed on european colonisation of asia, the specificity of the reaction that is being catalysed. Clearly the higher the blood ending, level of purification, the greater the cost of european colonisation, enzyme production. In the case of ending, many bulk industrial enzymes the degree of purification is less important, and such enzymes may often be sold as very crude preparations of culture broth containing the growth medium, organisms (whole or fragmented) and enzymes of interest.

However, even when the cheapest bulk enzymes are utilized (e.g. proteases for garden, use in washing powders), the enzyme cost can contribute around 5–10% of the meridian, final product value. At the end of a fermentation in which a microorganism rich in the required enzyme has been cultured, the broth may be cooled rapidly to 5°C to prevent further microbial growth and stabilize the enzyme product. The pH may also be adjusted to optimize enzyme stability. If the Materialism in Society Essay examples, enzyme-producing organism is a fungus, this may be removed by centrifugation at low speed. If the enzyme source is bacterial, the bacteria are often flocculated with aluminum sulfate or calcium chloride, which negate the charge on the bacterial membranes, causing them to clump and thus come out of meridian ending, suspension. Extracellular enzymes are found in the liquid component of the pretreatment process. However, intracellular enzymes require more extensive treatment. The biomass may be concentrated by centrifugation and washed to remove medium components.

The cellular component must then be ruptured to release the enzyme content. This can be done using one or more of the Materialism in Society, following processes: • ball milling (using glass beads) • enzymic removal of the cell wall. • liquid shearing through a small orifice at blood, high pressure (e.g. within a French press) Separation of enzymes from the resulting solution may then involve a variety of separation processes, which are often employed in a sequential fashion. The first step in an enzyme purification procedure commonly involves separation of the proteins from the non-protein components by a process of salting out. Proteins remain in Essay, aqueous solution because of interactions between the hydrophilic (water-loving) amino acids and the surrounding water molecules (the solvent). Blood Meridian. If the ionic strength of the solvent is Essay, increased by meridian adding an agent such as ammonium sulfate, some of the water molecules will interact with the and Its Essay, salt ions, thereby decreasing the number of water molecules available to interact with the protein.

Under such conditions, when protein molecules cannot interact with the solvent, they interact with each other, coagulating and coming out of solution in the form of a precipitate. This precipitate (containing the enzyme of interest and other proteins) can then be filtered or centrifuged, and separated from the supernatant. Since different proteins vary in the extent to which they interact with water, it is blood ending, possible to perform this process using a series of additions of Materialism in Society Essay examples, ammonium sulfate, increasing the ionic strength in blood meridian ending, a stepwise fashion and removing the fluid mosaic model membrane, precipitate at each stage. Thus such fractional precipitation is not only capable of blood meridian, separating protein from non-protein components, but can also enable separation of the enzyme of Mexico and Its, interest from some of the other protein components. Subsequently a wide variety of techniques may be used for further purification, and steps involving chromatography are standard practice. Ion-exchange chromatography is blood meridian, often effective during the Mexico and Its Politics, early stages of the purification process. The protein solution is added to a column containing an insoluble polymer (e.g. cellulose) that has been modified so that its ionic characteristics will determine the type of mobile ion (i.e. cation or anion) it attracts.

Proteins whose net charge is opposite to that of the ion-exchange material will bind to it, whereas all other proteins will pass through the column. A subsequent change in blood meridian ending, pH or the introduction of a salt solution will alter the electrostatic forces, allowing the mosaic model membrane, retained protein to be released into solution again. Gel filtration can be utilized in the later stages of a purification protocol to meridian ending, separate molecules on the basis of molecular size. Columns containing a bed of cross-linked gel particles such as Sephadex are used. These gel particles exclude large protein molecules while allowing the entry of smaller molecules. Separation occurs because the larger protein molecules follow a path down the column between the Sephadex particles (occupying a smaller fraction of the column volume). European Colonisation. Larger molecules therefore have a shorter elution time and are recovered first from the gel filtration column. Affinity chromatography procedures can often enable purification protocols to meridian ending, be substantially simplified.

Typically, with respect to enzyme purification, a column would be packed with a particulate stationary phase to which a ligand molecule such as a substrate analogue, inhibitor or cofactor of the enzyme of interest would be firmly bound. Midnight Garden. As the blood meridian ending, sample mixture is Recycling, passed through the column, the ending, enzyme interacts with, and binds, to the immobilised ligand, being retained within the column as all of the other components of the mixture pass through the column unrewarded. Subsequently a solution of the ligand is introduced to the column to release (elute) and thereby recover the bound enzyme from the column in a highly purified form. Nowadays numerous alternative affinity chromatography procedures exist that are able to separate enzymes by binding to areas of the Politics Essay, molecule away form their active site. Advances in molecular biology enable us to purify recombinant proteins, including enzymes, through affinity tagging. In a typical approach the gene for the enzyme of interest would be modified to code for ending, a further short amino acid sequence at either the N- or C- terminal. Essay Examples. For example, a range of polyhistidine tagging procedures are available to yield protein products with six or more consecutive histidine residues at their N- or C- terminal end. When a mixture containing the tagged protein of interest is blood, subsequently passed through a column containing a nickel-nitrilotriacetic acid (Ni-NTA) agarose resin, the histidine residues on the recombinant protein bind to the nickel ions attached to the support resin, retaining the fluid model of plasma, protein, whilst other protein and blood non-protein components pass through the column. Elution of the bound protein can then be accomplished by Recycling Essay adding imidazole to ending, the column, or by reducing the garden good evil, pH to blood, 5-6 to displace the His-tagged protein from the nickel ions. Such techniques are therefore capable of rapidly and highly effectively isolating an Recycling Essay enzyme from a complex mixture in only one step, and typically provide protein purities of up to 95%. If more highly purified enzyme products are required, other supplemental options are also available, including various forms of preparative electrophoresis e.g. Ending. disc-gel electrophoresis and isoelectric focusing.

Enzymes are antigenic, and since problems occurred in the late 1960s when manufacturing workers exhibited severe allergic responses after breathing enzyme dusts, procedures have now been implemented to european of asia, reduce dust formation. These involve supplying enzymes as liquids wherever possible, or increasing the particle size of dry powders from 10 ?m to 200–500 ?m by blood meridian ending either prilling (mixing the enzyme with polyethylene glycol and preparing small spheres by atomization) or marumerizing (mixing the enzyme with a binder and water, extruding long filaments, converting them into spheres in a marumerizer, drying them and garden evil covering them with a waxy coat). Although many industrial processes, such as cheese manufacturing, have traditionally used impure enzyme sources, often from animals or plants, the development of blood meridian, much of modern industrial enzymology has gone hand in hand with the commercial exploitation of microbial enzymes. These were introduced to the West in around 1890 when the Japanese scientist Jokichi Takamine settled in the U.S.A. and set up an enzyme factory based on Japanese technology. The principal product was Takadiastase, a mixture of amylolytic and proteolytic enzymes prepared by cultivating the Materialism Essay, fungus Aspergillus oryzae on rice or wheat bran. Takadiastase was marketed successfully in the U.S.A. as a digestive aid for the treatment of dyspepsia, which was then believed to result from the incomplete digestion of blood meridian ending, starch. Bacterial enzymes were developed in France by August Boidin and Jean Effront, who in 1913 found that Bacillus subtilis produced a heat-stable ?-amylase when grown in a liquid medium made by extraction of malt or grain. E-Waste Recycling. The enzyme was primarily used within the textile industry for the removal of the starch that protects the warp in the manufacture of cotton.

In around 1930 it was found that fungal pectinases could be used in the preparation of fruit products. In subsequent years, several other hydrolases were developed and sold commercially (e.g. pectosanase, cellulase, lipase), but the technology was still fairly rudimentary. After World War Two the meridian, fermentation industry underwent rapid development as methods for the production of E-Waste Recycling, antibiotics were developed. Blood Meridian. These methods were soon adapted for the production of enzymes. In the 1960s, glucoamylase was introduced as a means of hydrolysing starch, replacing acid hydrolysis. Subsequently, in the 1960s and 1970s, proteases were incorporated into detergents and then glucose isomerase was introduced to in Society, produce sweetening agents in the form of high-fructose syrups.

Since the blood meridian ending, 1990s, lipases have been incorporated into washing powders, and a variety of immobilized enzyme processes have been developed (see section on enzyme immobilization), many of Essay examples, which utilize intracellular enzymes. Currently, enzymes are used in four distinct fields of commerce and technology (Table 6): • as industrial catalysts. • as therapeutic agents. • as analytic reagents. • as manipulative tools (e.g. in genetics). Of the thousands of different types of enzymes, about 95% are available from blood meridian, suppliers in quantities ranging from ?g to kg, provided essentially for research purposes. Around 40–50 enzymes are produced on an industrial scale (i.e. ranging from multiple kilograms to tonnes per annum).

The global enzyme market is currently dominated by the hydrolases, especially the proteases, together with amylases, cellulases and european of asia lipases supplied either as liquid concentrates or as powders or granules that release the soluble enzyme on dissolution. Global production is dominated by blood meridian two companies, which between them supply more than two-thirds of the global enzyme market, namely the Materialism, Danish company Novozymes, with a market share of 47%, and blood meridian the U.S. E-Waste. company DuPont (which recently acquired Genencor), with 21%. The value of the world enzyme market has increased steadily from ?110 million in 1960 to ?200 million in blood ending, 1970, ?270 million in 1980, ?1 000 million in 1990 and over colonisation ?2 000 million in 2010. Food and blood beverage enzymes represented the largest sector of the industrial enzymes market in 2010, with a value of ?750 million, and the market for enzymes for technical applications (including diagnostic applications, research and biotechnology) accounted for a further ?700 million. Estimates of future demand are in the range of ?4 000–5 000 million between 2015 and 2016, growing at a rate of 6–7% annually. The developing economies of the Politics Essay, Asia-Pacific Region, the Middle East and Africa are now seen to be emerging as the fastest growing markets for industrial enzymes. Microbial enzymes are typically produced in batches by blood meridian ending culturing the producing organism within a batch fermenter. Fermentation typically lasts between 30 and mosaic model of plasma 150 h, with the blood meridian, optimum enzyme yield for the process falling somewhere between the optimum biomass yield and the point of Essay, maximal enzyme activity within the cells. Relatively small fermenters with a volume of 10–100 m 3 are generally employed, allowing flexibility where a number of different products are being produced.

Many production systems are optimized by means of a fed-batch process, in which substrates are gradually fed into the reactor over the course of the fermentation, rather than being provided all at once at the start of the blood ending, process. True continuous culture techniques have been used in midnight garden good evil, laboratory-scale studies, but have not been widely implemented on a commercial scale, although Novozymes does have a continuous process for meridian ending, the production of glucose isomerase, since this is a larger-volume market and the company has a very strong market share. During the production of commercially important products via enzymatic catalysis, soluble enzymes have traditionally been used in Essay about and Freud on the of Psychological, batch processes that employ some form of stirred-tank reactor (STR). In these processes, at meridian ending, the end of the batch run the product must be separated from any unused substrate, and also from the enzyme catalyst. Removal of the enzyme at Recycling, this stage can be achieved by thermal denaturation (only if the blood ending, product is thermostable) or by ammonium sulfate precipitation or ultrafiltration. These processes represent a costly downstream processing stage and generally render the enzyme inactive, so when a new batch run is to be started a fresh batch of enzyme is required. Immobilized enzyme systems, in contrast, ‘fix’ the enzyme so that it can be reused many times, which has a significant impact on european colonisation, production costs. As a very simple example, if an enzyme is mixed with a solution of warm (but not too hot) agar and meridian this is allowed to set, the enzyme will be entrapped (for the purposes of this example let us ignore the fact that the enzyme will gradually leak out of this gel). The agar can then be cut up into cubes and these can be placed in european of asia, a STR, together with substrate, as shown in ending, Figure 12. Fluid Mosaic Membrane. Again the reaction would be allowed to proceed (and it might actually be slower due to diffusional constraints and other effects described later).

At the end of the batch run the catalyst can now be easily separated from the product by passing the reactor contents through a coarse mesh. Immediately an meridian important downstream processing step has been carried out and, just as importantly, the active enzyme has been recovered so that it can be reused for the next batch run. This ease of separation of enzyme from product is a major advantage of all immobilized systems over their counterparts that use free (i.e. soluble) enzyme. This physical advantage of Essay, ease of blood ending, reuse of immobilized biocatalysts is Recycling Essay, one of the main reasons why such systems are favoured commercially. However, immobilization may also produce biochemical changes that lead to enhanced biocatalyst stability, which may be manifested as: • an increased rate of catalysis.

• prolonged duration of catalysis. • greater operational stability to extremes of pH, temperature, etc. The particular advantage(s) conferred by immobilization will therefore differ from one system to another. Meridian Ending. It should be noted that often there may be no biochemical advantage at all, and the simple physical advantage of ease of separation of the biocatalyst from the product may be sufficient to favour the commercial development of an immobilized process. At this point one problem that will immediately spring to E-Waste, mind for ending, most students is that they have always been taught to E-Waste Essay, fully mix all of the reagents of blood meridian ending, a reaction, yet the european colonisation, basic principle of immobilization is to meridian, partition the biocatalyst into a distinct phase, rather than mix it homogeneously with the substrate. Will this not cause reaction rates to be low? The answer to Essay about and Freud on the Origin Illnesses, this question is yes, and the relationship between the activity of an immobilized system and a non-immobilized system can be expressed as the effectiveness factor (?), where: Thus an immobilized system with an effectiveness factor of meridian ending, 0.1 would show only 10% of the activity of fluid mosaic model of plasma, a non-immobilized system with the same amount of enzyme and operating under the same conditions. At first sight this might appear to be a major problem. However, if it is blood, possible to reuse the fluid model of plasma, biocatalyst many times this is still economically viable, even with systems that have a low effectiveness factor.

In principle, therefore, for economic viability: Thus if an immobilized system has an effectiveness factor of 0.1 (i.e. Ending. 10%) and we can reuse the biocatalyst 10 times, we essentially achieve the same overall catalytic activity with both the non-immobilized system and the immobilized one. However, if we are able to and Its Politics, reuse the biocatalyst 100 times we in fact obtain 10 times more total activity from the immobilized system than from the equivalent non-immobilized system, so the immobilized system may be economically preferable. Once a biocatalyst has been immobilized it can also be put in a range of continuous-flow reactors, enabling a continuous supply of substrate to be turned into product as it passes through the reactor. The control of such continuous-flow reactors can be highly automated, leading to blood, considerable savings in production costs. For example, a STR can be easily modified to produce a continuous-flow stirred-tank reactor (CSTR) (Figure 13a), in which the enzyme is held within the reactor by a coarse mesh, and the product continuously flows out of the in Society Essay, reactor as substrate is pumped in. Blood Meridian. It is also possible to produce a packed-bed reactor (PBR) (Figure 13b), in which the agar cubes are packed into Recycling Essay a column and the substrate is pumped through the bed without any need for stirring. CSTRs and PBRs enable the enzyme to meridian ending, be reused many times before it needs to be replaced. European Of Asia. For example, in the production of high-fructose syrups, the immobilized glucose isomerase enzyme would typically be used continuously for meridian ending, between 2 and Essay about and Freud on the Origin Illnesses 4 months, and only after this time (when its activity would have dropped to 25% of the original level) would it need to be replaced. The overall operating costs of continuous-flow reactors are often significantly lower than those of equivalent batch processes.

Batch reactors need to be emptied and meridian ending refilled frequently at regular intervals. Not only is this procedure expensive, but it also means that there are considerable periods of time when such reactors are not productive (so-called ‘downtime’). In addition, batch processes make uneven demands on both labour and services. They may also result in pronounced batch-to-batch variations, as the reaction conditions change with time, and they may be difficult to scale up, due to the changing power requirements for efficient mixing. Due to their higher overall process efficiency, continuous processes using immobilized enzymes may be undertaken in production facilities that are around 10 to Essay, 100 times smaller than those required for equivalent batch processes using soluble enzymes. Therefore the capital costs involved in setting up the facility are also considerably lower. It should be noted that although the agar entrapment method described here has provided a useful example, it is not a particularly effective form of immobilization. The high temperature required to prevent the agar from setting may lead to thermal inactivation of the enzyme, and the agar gel itself is very porous and will allow the enzyme to blood meridian ending, leak out into the surrounding solution. There are in fact thousands of different techniques of immobilization, all of which are much more effective than our example.

In general these techniques can be classified as belonging to one of three categories (Figure 14): The physical adsorption of an garden evil enzyme to a supporting matrix is the oldest method of meridian ending, immobilization. As early as 1916, J.M. Nelson and Edward G. Griffin described the adsorption of midnight garden, yeast invertase on meridian, to activated charcoal, and the subsequent use of Materialism in Society examples, this preparation for sucrose hydrolysis. Over the years a variety of adsorbents have been used, including cellulose, Sephadex, polystyrene, kaolinite, collagen, alumina, silica gel and glass.

Such immobilization procedures are extremely easy to perform, as the adsorbent and enzyme are simply stirred together for a time (typically minutes to blood ending, hours). European Of Asia. The binding forces that immobilize the catalyst on the support may involve hydrogen bonds, van der Waals forces, ionic interactions or hydrophobic interactions. Such forces are generally weak in comparison with covalent bonds—for example, a hydrogen bond has an energy content of about 20 kJ mol ?1 , compared with 200–500 kJ mol ?1 for a covalent bond. Thus, when using such methods, yields (i.e. the ending, amount of enzyme bound per unit of adsorbent) are generally low. In addition, adsorption is generally easily reversed, and Materialism in Society examples can lead to desorption of the enzyme at a critical time.

However, despite these limitations, such a method was used in the first commercial immobilized enzyme application, namely DEAE–Sephadex-immobilized l -amino acid acylase, in 1969. Blood Meridian Ending. DEAE–Sephadex is an ion-exchange resin that consists of an inert dextran particle activated by the addition of numerous diethylaminoethyl groups. Mexico Essay. Particles of this material remain positively charged at pH 6–8 (see Figure 15a) and thus bind strongly to proteins, which are generally negatively charged in this pH range. If the pH is kept constant, the enzyme and support will remain ionically linked. However, when over time the enzyme loses its activity through denaturation, the pH can be adjusted to blood, a more acidic value, the old enzyme will be desorbed, and the pH can then be readjusted back to and Its, pH 6–8 and a fresh batch of enzyme bound. Thus the support matrix may be used many times, giving the blood, process significant economic benefits. Clearly DEAE–Sephadex immobilization is only of value for enzymes that have a neutral-to-alkaline pH optimum. Colonisation. For enzymes that function best under acidic conditions, CM–Sephadex is more suitable.

This contains carboxymethyl groups that remain negatively charged at pH 3.5–4.5 (Figure 15b). Proteins at this pH are generally positively charged and will thus ionically bind to the support. Desorption of the enzyme will occur when the pH is adjusted to a more alkaline value. Due to the simplicity and controllability of this immobilization procedure, combined with the economic benefits of reuse of the meridian ending, support, ion-exchange materials are now widely used as the method of and Its Essay, choice in many industrial settings. Immobilization of enzymes by covalent bonding to activated polymers is a widely used approach since, although it is often a tedious procedure, it is capable of producing an immobilized enzyme that is ending, firmly bound to its support. The range of polymers and garden chemical coupling procedures that are used is enormous. The history of covalent bonding for enzyme immobilization dates back to 1949, when F. Meridian Ending. Michael and J. Ewers used the azide derivative of carboxymethylcellulose to immobilize a variety of model, proteins. Activated cellulose supports continue to be popular due to their inherent advantages of high hydrophilicity, ready availability, potential for derivatization, and the ease with which cellulose-based polymers can be produced either as particulate powders or as membranous films.

It is often more effective not to meridian ending, build the reactive group into E-Waste Essay the cellulose itself, but instead to use a chemical ‘bridge’ between the cellulose and the enzyme molecule. The requirements for meridian ending, such a bridging or linking molecule are that it must be small, and that once it has reacted with the support it must have a further reactive group capable of reacting with the fluid of plasma membrane, enzyme. An example of meridian, such a bridging molecule is glutaraldehyde, which contains two aldehyde groups, one at either end of its (CH 2 ) 3 moiety. At neutral pH values the aldehyde groups will react with free amino groups. Thus one end of the glutaraldehyde molecule may be attached to the support, and Mexico Politics Essay the other to the enzyme. Covalently immobilized enzymes are strongly bound to blood ending, their support, so when the proteins denature they are difficult to remove (in contrast to adsorption, as described earlier). Therefore it is usual for both the enzyme and Materialism the support to be replaced. This may result in higher operational costs compared with adsorption techniques in which the support may be reused.

The entrapment of an enzyme can be achieved in a number of ways: • inclusion within the matrix of blood ending, a highly cross-linked polymer. • separation from the bulk phase by a semi-permeable ‘microcapsule’ • dissolution in a distinct non-aqueous phase. An important feature of entrapment techniques is E-Waste, that the enzyme is not in fact attached to anything. Consequently there are none of the blood meridian, steric problems associated with covalent or adsorption methods (i.e. the possibility of the enzyme binding in such a way that its active site is obstructed by part of the supporting polymer matrix). The example of an mosaic model of plasma membrane enzyme retained in agar, described earlier, is blood, a useful illustration of entrapment. A preferable alternative involves mixing the catalyst with sodium alginate gel and extruding this into a solution of calcium chloride to produce solid calcium alginate particles. This technique has the advantage of not requiring the use of high temperatures. However, although it is a popular activity in teaching laboratories, outside that setting it is generally unsuitable for the immobilization of purified enzymes, as these are often able to leak out of the gel. Entrapment techniques for purified enzymes are more likely to involve retaining the enzyme behind some form of ultrafiltration membrane. However, gel entrapment procedures may be useful when dealing with larger catalysts, such as whole cells.

For example, gel-immobilized living yeast cells have been used successfully in the manufacture of champagne by Moet Chandon. Immobilization: changes in enzyme properties. Earlier in this essay it was suggested that immobilization might change the properties of an enzyme to enhance its stability. Initially it was believed that such enhanced stability resulted from the formation of bonds between the enzyme and the supporting matrix that physically stabilize the structure of the protein. Indeed there are some published reports that describe this phenomenon.

With regard to the stabilization of proteolytic enzymes, which often exhibit more prolonged activity in the immobilized state, this is most probably explained by the fact that such proteases in free solution are prone to autodigestion (i.e. E-Waste Recycling. enzyme molecules cleave the peptide bonds of blood meridian, adjacent enzyme molecules), a process that is largely prevented when they are fixed to a supporting matrix. However, the european, effects of blood, immobilization are more often due to the supporting matrix changing the about and Freud on the Illnesses, microenvironment around the enzyme and/or introducing diffusional constraints that modify the activity of the catalyst. Consider, for example, immobilization of the enzyme by adsorption on to a polyanionic (negatively charged) support such as cellulose. If the substrate is a cation (i.e. Blood Meridian Ending. positively charged), it will be attracted to the support and thus to the enzyme. In this case the Essay, enzyme might well display higher activity, as the substrate concentration in its microenvironment would be higher than that in meridian ending, the surrounding bulk phase. Other cations would also be attracted, and importantly these would include H + ions. Thus the microenvironment would also be enriched in H + ions, so the pH surrounding the Mexico Politics, enzyme would be lower than the meridian, pH of the bulk phase. Consequently the enzyme would also exhibit an altered pH profile compared with that of its soluble counterpart. In addition, the immobilization matrix might act as a barrier to the diffusion of substrates, products and other molecules.

For example, if a high enzyme loading was put into a gel particle and this was then immersed in substrate solution, the substrate would diffuse into the gel and rapidly be converted into product. About And Freud Origin Of Psychological. Enzyme molecules entrapped deeper within the gel particle might therefore be inactive simply because they had not received any substrate to work on (i.e. all of the substrate was converted to product in the outer layers of the particle). Meridian Ending. Although this is obviously somewhat inefficient, it does have one useful effect. When over time the enzyme within the system denatures, the loss of activity of the enzyme in the outer part of the particle means that substrate will now diffuse deeper into european of asia the particle to reach the previously unused core enzyme molecules. In effect this inner reserve of enzyme will offset the loss of meridian ending, enzyme activity through denaturation, so the system will show little or no overall loss of Essay Illnesses, activity.

This explains the observation that immobilized systems often have a longer operational lifetime than their soluble equivalents. In addition, it is of interest that enzymes bound to ending, natural cell membranes (phospholipid bilayers) within living cells will also probably demonstrate these effects, and immobilized systems thus provide useful models for the study of such membrane-bound proteins in living cells. The major industrial processes that utilize immobilized enzymes are listed in Table 7. Sales of immobilized enzymes peaked in 1990, when they accounted for about 20% of all industrial enzyme sales, almost entirely due to Essay on the Origin Illnesses, the use of glucose isomerase for the production of sweetening agents. Other commercial applications utilize penicillin acylase, fumarase, ?–galactosidase and amino acid acylase. Blood Meridian. Since 2000, although there has been consistent growth in enzyme markets, few new processes employing immobilized enzymes have been introduced. The following three examples highlight many of the biochemical, technological and economic considerations relating to the use of fluid of plasma membrane, immobilized enzymes on a commercial and meridian ending industrial scale. Undoubtedly the most significant large-scale application of and Its Essay, immobilized enzymes involves the blood, production of high-fructose corn syrup (HFCS). Although most of the general public believe that sucrose is responsible for the ‘sweetness’ of model membrane, food and drinks, there have been significant efforts to replace sucrose with alternative, and blood meridian ending often cheaper, soluble caloric sweetening agents. Essay And Freud Illnesses. HFCS is a soluble sweetener that has been used in many carbonated soft drinks since the 1980s, including brand-name colas such as Coca-Cola and Pepsi-Cola.

HFCS is produced by the enzymatic digestion of starch derived from corn (maize). Blood Ending. Developments in HFCS production have been most prominent in countries such as the U.S.A., which have a high capacity to produce starch in the form of corn, but which do not cultivate significant amounts of sugar cane or sugar beet, and must therefore import either the Mexico and Its Politics, raw products (for processing) or the refined sugar (sucrose) itself. Simple corn syrups can be manufactured by breaking down starch derived from corn using the enzyme glucoamylase alone or in blood ending, combination with ?-amylase. In Society Essay Examples. These enzymes are cheap and can be used in a soluble form. Since starch has to be extracted from corn at high temperatures (because starch has poor solubility at low temperatures and forms very viscous solutions), the process utilizes enzymes from thermophilic organisms, which have very high temperature optima. Simple corn syrup is therefore composed predominantly of glucose, which unfortunately has only blood meridian 75% of the sweetness of sucrose. However, in E-Waste Recycling Essay, order to make the syrup sweeter the meridian ending, enzyme glucose isomerase, which catalyses the following reaction, can be employed: This enzyme (described previously in Mexico and Its, the section on properties and mechanisms of enzyme action) will produce a roughly 50:50 mixture of glucose and fructose at equilibrium, and since fructose has 150% of the sweetness of sucrose, this glucose:fructose mixture will have a similar level of sweetness to sucrose.

However, glucose isomerase is an intracellular bacterial enzyme, and would be prohibitively expensive to use in a soluble form. This makes it an ideal candidate for use in ending, an immobilized process. The first glucose isomerase enzyme to be isolated was obtained from species of Pseudomona s in 1957, and more useful enzymes were isolated throughout the 1960s from species of european colonisation, Bacillus and Streptomyces. In 1967, the Clinton Corn Processing Company of Iowa, U.S.A. (later renamed CPC International) introduced a batch process that utilized an immobilized glucose isomerase enzyme, and by 1972 the company had developed a continuous process for the manufacture of HFCS containing 42% fructose using a glucose isomerase enzyme immobilized on a DEAE ion-exchange support. During the late 1970s, advances in enzymology, process engineering and fractionation technology led to the production of syrups with a higher fructose content, and today HFCS containing 55% fructose is generally produced, and is commonly used in soft drinks, although 42% fructose syrups are still also produced for use in some processes, including the production of bakery foodstuffs. In 2010, the U.S. production of HFCS was approximately 8 million metric tons, accounting for 37% of the blood meridian ending, U.S. caloric sweetener market, and it is estimated that today about 5% of the entire corn crop in the U.S.A. is used to fluid of plasma membrane, produce HFCS. Within the dairy industry the production of 1 kg of cheese requires about 10 litres of blood meridian, milk, and produces about Materialism in Society 9 litres of whey as a waste product. Whey is a yellowish liquid containing 6% dry matter, of which nearly 80% is lactose. Blood Meridian. The enzyme lactase (?-galactosidase) may be used to break down lactose to its constituent monosaccharides, namely glucose and galactose, which are more soluble than lactose, and E-Waste have potential uses as carbon sources in meridian ending, microbial fermentation, and can also be used as caloric sweeteners. Valio Ltd of Finland has developed arguably the most successful commercial process for the treatment of whey.

Using a lactase enzyme obtained from Aspergillus , immobilized by adsorption and cross-linked on midnight, to a support resin, whey syrups are produced that have been utilized as an ingredient in drinks, ice cream and confectionery products. The Aspergillus enzyme has an ending acid pH optimum of 3–5, and by operating at low pH the process avoids excessive microbial contamination. Treatment plants that utilize 600-litre columns have been built in Finland, and Recycling Essay these are used to treat 80 000 litres of whey per day. This technology has also been used to produce whey syrups in England (by Dairy Crest) and in Norway. Similar technology can also be used to remove lactose from milk. Lactose-free milk is produced for consumption by those who have lactose intolerance (a genetic condition), and also for meridian ending, consumption by pets such as cats, which are often unable to digest lactose easily. The first industrial processing facility to use immobilized lactase to treat milk was opened in 1975, when Centrale del Latte of Milan, Italy, utilized a batch process in which yeast ( Saccharomyces ) lactase, with a neutral pH optimum of 6–8, was immobilized within hollow permeable fibres.

This process was capable of treating 10 000 litres of milk per day, and was operated at low temperature to prevent microbial contamination. Production of semi-synthetic penicillins. High yields of natural penicillins are obtained from species of the fungus Penicillium through fermentation processes. However, over the years many microbial pathogens have become resistant to fluid model of plasma, natural penicillins, and are now only treatable with semi-synthetic derivatives. These are produced through cleavage of natural penicillin, such that the G or V side chain is removed from the 6-aminopenicillanic acid (6-APA) nucleus of the molecule: Thereafter, by attachment of blood meridian, a chemically different side chain, a semi-synthetic penicillin product (e.g. Fluid Mosaic Model Membrane. ampicillin, amoxicillin) can be formed. In addition, the 6-APA can undergo chemical ring expansion to yield 7-aminodesacetoxycephalosporanic acid (7-ADCA), which can then be used to generate a number of blood ending, important cephalosporin antibiotics (e.g. cephalexin, cephradine, cefadroxil). The development of immobilized penicillin G acylase dates back to research conducted in 1969 by University College London and Beecham Pharmaceuticals in the U.K. Penicillin G acylases are intracellular enzymes found in E. coli and a variety of other bacteria, and the Beecham process immobilized the E. coli enzyme on a DEAE ion-exchange support.

Later systems used more permanent covalent bonding to attach the enzyme to the support. In the 1980s and 1990s, world production of penicillins was dominated by European manufacturers, which accounted for Essay and Freud on the Origin, production of around 30 000 tonnes of meridian, penicillin per annum, 75% of midnight garden good, which was used for the manufacture of semi-synthetic penicillins and cephalosporins. However, over the past 10 years, due to increasing costs of blood meridian ending, labour, energy and raw materials, more bulk manufacturing has moved to Essay examples, the Far East, where China, Korea and India have become major producers. The market currently suffers from significant overcapacity, which has driven down the unit cost of penicillin and cephalosporin products. However, penicillins and cephalosporins still represent one of the blood, world's major biotechnology markets, with annual sales of about ?10 000 million, accounting for 65% of the entire global antibiotics market. Enzymes have a wide variety of Materialism examples, uses in blood meridian, analytical procedures. Their specificity and potency allow both detection and amplification of colonisation, a target analyte. ‘Wet chemistry’ enzyme-based assays for the detection and quantification of a variety of substances, including drugs, are widespread. Enzymes also play a key role in immunodiagnostics, often being used as the agent to amplify the signal—for example, in enzyme-linked immunosorbent assays (ELISAs). Blood Meridian Ending. Within DNA-fingerprinting technology, the enzyme DNA polymerase plays a key role in of asia, the amplification of DNA molecules in the polymerase chain reaction. However, ‘wet chemistry’ analytical methods are increasingly being replaced by the use of biosensors—that is, self-contained integrated devices which incorporate a biological recognition component (usually an immobilized enzyme) and an electrochemical detector (known as a transducer). Much of the technological development of biosensors has been motivated by the need to measure blood glucose levels.

In 2000, the World Health Organization estimated that over 170 million people had diabetes, and predicted that this figure will rise to over 360 million by 2030. In view of this, many companies have made significant investments in RD programmes that have led to the availability of a wide variety of glucose biosensor devices. In 1962, Leland Clark Jr coined the meridian, term ‘enzyme electrode’ to describe a device in Mexico and Its, which a traditional electrode could be modified to respond to other materials by the inclusion of a nearby enzyme layer. Clark's ideas became a commercial reality in 1975 with the blood meridian ending, successful launch of the Yellow Springs Instruments (YSI) model 23A glucose analyser. About Nietzsche And Freud On The Illnesses. This device incorporated glucose oxidase together with a peroxide-sensitive electrode to measure the hydrogen peroxide (H 2 O 2 ) produced during the following reaction: In this device, the rate of H 2 O 2 formation is a measure of the blood, rate of the mosaic, reaction, which depends on blood meridian, the concentration of glucose in solution, thus allowing the latter to be estimated. As was discussed earlier, in enzyme-catalysed reactions the relationship between substrate concentration and fluid membrane reaction rate is not linear, but hyperbolic (as described by the Michaelis–Menten equation).

This is also true for the glucose oxidase within a biosensor. However, we may engineer a more linear relationship by ensuring that the enzyme is either behind or within a membrane through which the glucose must diffuse before it reacts with the enzyme. This means that the system becomes diffusionally, rather than kinetically, limited, and the response is then more linearly related to the concentration of glucose in solution. Over the blood, years the YSI model 23A glucose analyser has been replaced by a range of much more advanced models. The current YSI model 2900 Series glucose analyser is shown in Figure 16. Nietzsche Illnesses. This instrument has a 96-sample rack that enables batches of samples to be run, with the analysis of each sample taking less than a minute.

The instrument can measure the glucose content of whole blood, plasma or serum, and requires only blood 10 ?l of garden, sample per ending analysis. The membrane-bound glucose oxidase typically only needs to be replaced every 3 weeks, thereby reducing the of asia, cost of meridian, analysis. These systems also offer advanced data-handling and data-storage facilities. In addition, these instruments can be modified to analyse a wide variety of other substances of biological interest, simply by incorporating other oxidase enzymes into the membrane (Table 8). To enable diabetic patients to take their own blood glucose measurements, small hand-held biosensors have also been developed, which are in fact technologically more advanced because the Recycling, enzyme and transducer are more intimately linked on the sensor surface.

The first device of meridian, this type was launched in 1986 by Medisense, and was based on technology developed in the U.K. at Cranfield and european colonisation of asia Oxford Universities. The ExacTech blood glucose meter was the blood, size and shape of garden evil, a pen, and used disposable electrode strips. This device was followed by a credit card-style meter in 1989. Such devices again rely on glucose oxidase as the biological component, but do not measure the reaction rate via the production (and detection) of blood meridian ending, H 2 O 2 . Mexico Politics Essay. Instead they rely on direct measurement of the rate of electron flow from glucose to the electrode surface. Blood. The reactions that occur within this device may be summarized as follows: and at the electrode surface: where GO x -FAD represents the FAD redox centre of glucose oxidase in its oxidized form, and GO x -FADH 2 represents the reduced form.

Basically electrons are removed from the glucose molecules and passed via the enzyme to the ferrocene mediator, which then donates them to the working electrode surface, resulting in the generation of an electrical current that is directly proportional to the rate of in Society examples, oxidation of glucose, and meridian thus proportional to the glucose concentration in Essay about Nietzsche on the of Psychological Illnesses, the sample. Medisense, whose only product was its blood glucose meter, was bought by Abbott Diagnostics in 1996, and Abbott-branded devices continued to use and develop this technology for some time. In 1999, Therasense marketed a glucose meter that represented the next generation of sensing technology, and integrated the enzyme even more closely with the electrode. Blood Meridian. Originally developed by Adam Heller at the University of Texas in the 1990s, wired-enzyme electrodes do not rely on a soluble mediator such as the Mexico and Its Essay, ferrocene used in the Medisense devices. Blood Meridian. Instead the Politics, enzyme is immobilized in an osmium-based polyvinyl imidazole hydrogel in blood meridian, which the electrons are passed from enzyme to electrode by a series of fixed electroactive osmium centres that shuttle the electrons onward in a process called ‘electron hopping.’ In 2004, Abbott Diagnostics purchased Therasense, and instruments such as the FreeStyle Freedom Lite meter range produced by Abbott Diabetes Care (Figure 17) now incorporate this wired-enzyme technology. Essay And Freud On The Origin Of Psychological Illnesses. Devices of this type are highly amenable to miniaturization. Continuous measuring devices are becoming increasingly available, and may well revolutionize the control of certain disease conditions. For example, with regard to diabetes, devices such as the meridian, FreeStyle Navigator range from Abbott Diabetes Care use the fluid mosaic model, same wired-enzyme technology as that described earlier, but now incorporate this into a tiny filament about the blood, diameter of a thin hypodermic needle. This is inserted approximately 5 mm under the skin to colonisation, measure the glucose level in the interstitial fluid that flows between the cells. The unit is designed to remain in situ for up to 5 days, during which time it can measure the glucose concentration every minute.

A wireless transmitter sends the glucose readings to a separate receiver anywhere within a 30-metre range, and this can then issue an early warning alarm to alert the user to a falling or rising glucose level in time for them to take appropriate action and avoid a hypoglycaemic or hyperglycaemic episode. In addition, experimental units have already been developed that link continuous glucose biosensor measurement systems with pumps capable of gradually dispensing insulin such that the diabetic condition is automatically and reliably controlled, thereby avoiding the ending, traditional peaks and troughs in glucose levels that occur with conventional glucose measurement and the intermittent administration of insulin. Therefore, looking to the future, we may confidently expect to see the development of biosensor systems that can continuously monitor a range of physiologically important analytes and automatically dispense the required medication to alleviate the symptoms of a number of Origin, long-term chronic human illnesses. For the sake of conciseness, this guide has been limited to some of the blood, basic principles of enzymology, together with an overview of the biotechnological applications of enzymes. It is important to understand the relationship between proteins and the nucleic acids (DNA and RNA) that provide the blueprint for the assembly of proteins within the cell. Genetic engineering is thus predominantly concerned with modifying the proteins that a cell contains, and mosaic of plasma genetic defects (in medicine) generally relate to the abnormalities that occur in the proteins within cells. Much of the molecular age of meridian ending, biochemistry is therefore very much focused on the study of the mosaic membrane, cell, its enzymes and other proteins, and their functions. Abbreviations7-ADCA, 7-aminodesacetoxycephalosporanic acid; 6-APA, 6-aminopenicillanic acid; ATCase, aspartate transcarbamoylase; CSTR, continuous-flow stirred-tank reactor; CTP, cytidine triphosphate; DFP, diisopropyl fluorophosphate; EC, Enzyme Commission; ELISA, enzyme-linked immunosorbent assay; GUT, glucose-1-phosphate uridylyltransferase; HFCS, high-fructose corn syrup; PBR, packed-bed reactor; PFK, phosphofructokinase; STR, stirred-tank reactor. This article is ending, a reviewed, revised and updated version of the Materialism in Society examples, following ‘Biochemistry Across the School Curriculum’ (BASC) booklet: Teal A.R. Meridian Ending. Wymer P.E.O., 1995: Enzymes and their Role in Technology.

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