Best Practices in Training and Development Essay

Training and development is the keystone of successful company’s operation. There are a lot of training methods today that can be used for staff training. Many of the training options that are easily available take too much time, are too high-priced, are curriculum and course oriented and do not match the needs of the company or enterprise. That is why it is very important to realize all pros and cons of these methods. Instructor – Led Classroom Training. Pros: High quality delivery; Immediate Q & A; Leverage student questions. Cons: Costly student/trainer expense; Costly one-to-few training; Training often too soon/too late; Trainer must be knowledgeable of multiple applications. Best for: Multiple students of similar skill level; Training in single location; Observable performance Interpersonal skills/feedback; Highly interactive knowledge sharing. Worth for: Students of widely-varying skill levels; Training for large system/process rollout; Consistency across learner groups. Asynchronous Web – Based Internet/Intranet Training. Pros: Just-in-time training; No travel costs; Self-paced learning; Remedial training at no cost; Consistency; Possible increased retention; Easily distributed/updated training materials. Cons: Self-directed motivation can be problematic; Lack of classroom collaboration; May be viewed as â€Å"done on your own time†. Best for: Basic training; Students in multiple locations; As part of instructor-led training course. Worth for: Observable interpersonal skills/feedback; Real-time knowledge sharing. Synchronous (real-time) Web – Based Internet/Intranet Training. Pros: High quality delivery; Immediate Q & A; Leverage student questions; Rapid, low-cost content. Cons: Cost-per-student higher than asynchronous training; Network connection needed. Best for: Basic training; Students in multiple locations; Highly interactive knowledge sharing; Hands-on application training. Worth for: Students of widely-varying skill levels Observable interpersonal skills/feedback. What training method is the most useful and productive? Jim Campbell, Hudson’s Bay Company’s organizational management senior manager, said on the Canada’s Learning and Development Conference, that e-learning is not the be-all and end-all solution. His preferred approach is blended learning, where technology-assisted learning is integrated into more traditional training methods. â€Å"E-learning staff learned an important lesson when 5,000 binders of material meant as support for the online courses were distributed to employees†, said David Wright, TD learning and development senior manager. â€Å"About a year later, when we’d travel to the different branches, we’d still see people holding on to those binders. † Wright said some employees were simply choosing to print out all of the online material and study it in paper form anyway. He says the company acknowledges that not everyone learns in the same fashion, adding e-learning is best combined with peer-assisted training and one-on-one coaching. A blended approach to learning is not always an easy sell. Banks are conservative organizations and many TD employees had a hard time getting over a â€Å"computer-phobia,† Wright said. To this day, the company has to use scare tactics to get some of its employees to complete online courses, for example, when an online course is a pre-requisite for a seminar. In most midsize or large companies, internal training and development is viewed as a strategic imperative. â€Å"I’m all for the renaissance person,† says Lee Dailey, director of executive and management development at United Technology Corp. Dailey heads the Hartford, Connecticut, conglomerate’s Employee Scholar Program, a legendarily generous plan under which every one of UTC’s 200,000-plus employees is eligible for 100 percent reimbursement of all educational costs, including tuition, registration fees and books. Courses do not have to be directly related to the participant’s job. â€Å"If you’re an engineer for our Pratt & Whitney division and you want to study Middle Eastern religion, go ahead,† Dailey says. In addition, employees are given three hours off each week to work at their studies or attend class. When employees earn a degree, they are awarded $10,000 worth of company stock. Currently, 15 percent of UTC’s workforce is enrolled. Last year the company paid out $60 million, and it has spent $400 million since 1996, when the scholar program was instituted in its current form. The program, Dailey says, has never been evaluated for ROI. â€Å"Inherently, people understand that a better-educated workforce is a more productive workforce. † This is the philosophy of longtime UTC CEO George David, Dailey adds. â€Å"He wants the best-educated workforce on the planet. † Training and continuing education are tracked at General Motors, says Jeff Johnson, director of benefit operations worldwide for the auto company. Under the firm’s Salaried Employees’ Tuition Assistance Plan, managers must get approval from their supervisors before enrolling in courses that will earn them a desired undergraduate degree or advance their technical or managerial skills. â€Å"They’re very rarely turned down,† Johnson says, adding that few employees want to waste their time or GM’s money on irrelevant courses. The yearly limit at GM is $6,400 per individual for undergraduate education and $10,000 for postgraduate courses. Generally, large companies are the most generous with tuition dollars, but small and medium-sized companies do their best to keep up. Washington Trust Company, a 16-branch bank in Westerly, Rhode Island, gives tuition assistance to 70 of its 450 employees. Undergraduates must obtain a grade of at least C in their courses, and graduate students a B. Last year the company spent $73,000, and Kristen DiSanto, vice president for human resources, considers it money well spent. 1. Workforce Management on the Web 2004. Pros and Cons of Training Modes. 17 Oct. 2004 2. Rola, Monika. â€Å"Don’t forget the human touch: enterprises swap horror stories and best practices with their e-learning initiatives – IT Training & Careers. † Computing Canada 25 Apr. 2003. 17 Oct. 2004 3. Meisler, Andy. â€Å"A Matter of Degree. † Workforce Management May 2004. 17 Oct. 2004

Medicare Funding Crisis Essay

As the newly appointed chief of staff I have been tasked with responding to a proposal for reducing Medicare expenditures by enrolling participants in HMO. I understand that we have some key questions must be addressed and that we must justify our position on either economic efficiency or equity grounds. Outlined below are some of the questions that must be answered in order address this issue properly. Is Medicare in a state of crisis? Are you aware of the various policies that are being enacted from each state to state regarding the qualification of Medicare? Medicare is funded by the federal government and each state is responsible for operating the Medicare program as well as the local Medicaid programs. However, premiums have increased for Medicare and also, the coverage has changed in the past few years requiring people to purchase additional supplemental Medicare policies – this is difficult for elderly that have fixed incomes. If the elderly are unable to purchase Medicare, they will go uninsured. The Medicare system is double-funded. It is funded by the taxpayer (federal dollar) as well as the premiums being collected. But, in being double-funded, the coverage is still not as high as most private insurance companies making them appear with less quality. Are radical measures necessary to preserve the program? This is a very interesting question and you will have to take a more subjective approach to answering it. I don’t believe there are radical measures that must be taken to preserve the program because it is funded through two divisions – the federal government (taxpayer) and the premiums being collected. However, the cost of providing the medical services is much higher than the cost being collected. Perhaps a more responsible approach would be to evaluate the cost of the medical services being provided and standardize a cost table among all insurance companies including Medicare. For example, a client may be seen by a physician for a regular check-up and that provider is only allowed to charge Medicare $65. If a client came to that same physician with a private insurance policy, that physician is allowed to charge the private insurance $120. What happens then is that the service under the Medicare payment is not provided in the most quality manner (although, physicians will argue this) because they are getting paid much less by Medicare rates. The physician may spend more time, energy, and commitment to a private paying client because they are getting almost twice the amount of money from the private insurance. It is a matter of motivational service-delivery. The radical measures that need to take place are increasing Medicare rates of reimbursement or mandating lower rates of private insurance to neutralize the risk of receiving poor quality services. How is Medicare funded now? The Centers for Medicare & Medicaid Services (CMS), a branch of the Department of Health and Human Services (HHS), is the federal agency that runs the Medicare Program and monitors Medicaid programs offered by each state. (In 2011, Medicare covered 48.7 million people. Total expenditures in 2011 were $549.1 billion. This money comes from the Medicare Trust Funds. (Medicare.Gov (2010). About OTPN. Retrieved from http://www.medicare.gov/about-us/how-medicare-is-funded/medicare-funding.html) Medicare is funded by the federal government (the taxpayer’s federal taxes out of their paychecks). People may believe that social security pays for Medicare, but it doesn’t. If less people are working, less money is going into the federal â€Å"pool† of money to distribute to Medicare. The nation is at an all-time high for reported unemployment – that means that there is millions of dollars not going into the fund account for Medicare. However, just as many people are seeking medical coverage from Medicare – an imbalance occurs. Why do the elderly feel that Medicare is an insurance program, not a welfare program? Is this perception accurate? Some elderly, in my opinion, believe that Medicare is an insurance program that they are entitled to. During the Great Society movement in the 40’s-60’s, various governmental programs were designed to provide citizens entitlements to human services and welfare needs. The Medicare and Medicaid coverage was designed to provide those that do not have any means to pay for health care a way in which they could maintain their health needs – a right that the government and society has deemed every person should be entitled to; their health. So, depending on the culture, upbringing, and personal philosophy.

Hacker Hunters Essay Example | Topics and Well Written Essays - 750 words - 6

Hacker Hunters - Essay Example The contemporary era is the era of information technology, where fast and speedy flow of information is the key to success for the great brands and multinational organizations carrying vast business volume and sound corporate reputation at global level. The most meaningful way, Gates observes, to differentiate your company from your competitor, the best way to put distance between you and the crowd is to do an outstanding job with information and management. How you gather, manage, and use information will determine whether you win or loose. (1999: 2) Fast information technology provides the retailers a comprehensive, an accurate and detailed picture of the entire socioeconomic, cultural and corporate scenario. Since the well-reputed organizations undergo data stealing and accounts hacking dilemma at the hands of cyber criminals, they devise and review strategies and implement them in an affective way in order to protect their products and services from going into the hands of hacker s and criminals. The big retailers seek support from the information technology in order to escape cyber crimes conducted by the hackers. In addition, executive information system and decision support systems are also applied by the big retailers to protect their data from hacking by cyber crimes including elevation of privileges, hoexes attacks, malicious coding and others. Before articulating the plans to avoid hacking of data, the organizations should look into the nature of theft committed by the cyber criminals. The big organizations apply different strategies and techniques to avoid identity theft. They often make alterations in the data safety programs, so that the access to the data related to their sales and clients’ personal information could be made secure. Sales automation force (SAF) is also applied by the retailers where all the date related to the sales of their products is preserved and monitored regularly in an organized way, which indicates the level of sales as well as all the necessary information related to the product volume a client maintains at their institution on daily basis. When an organization offers its customers the ability to purchase products over the internet, it certainly looks for implementing the appropriate security. Transactional information technology and phishing methodology is exercised by the organization s and big retailers for the protection of their data and products.

To develop business continuity and disaster recovery plan for mid Thesis - 1

To develop business continuity and disaster recovery plan for mid sized companies - Thesis Example Moreover, the need for effective business continuity plan and disaster recovery plan is driven by regulatory requirements, customer demands, new business practices and changes in technology. It is very important to maintain customer confidence as well as competitive edge in these days of uncertainty. It is also necessary for companies to guarantee customers that their business is up to the task and running and it will not cause them to fail to produce and deliver products to their end customers in the event of a crisis. In this global world, vendor continuity management has become a vital part for business continuity. ABC has achieved worldwide status as a major supplier to electronic companies throughout the world. As a consequence, many companies depend upon ABC for their supplies. It is ABC’ responsibility to take this dependency very seriously and plan for situations which could impair ABC’ ability under adverse conditions to respond to our customers. As part of ABC’ responsibility to avoid an adverse condition, pro-active steps are taken, such as maintaining good housekeeping, non-overloading and periodic measuring of electric power circuits and periodic maintenance of sprinkler systems, etc. Preventive steps are a cornerstone to prevent self induced hazardous conditions that can result in a disaster. However, there may be situations that are beyond the control of ABC, such as flooding due to hurricanes or other events of nature. Regardless of the cause, it is imperative that lost production be recovered as quickly as possible to minimize customer difficulties. Therefore, our actions for recovery should also include timely communication to our customers to apprise them the expected delivery situation and what is to be expected in the future. Any business continuity and disaster recovery plan is made using a certain framework or methodology that makes that whole process systematic and easy to create and then

Questions Assignment Example | Topics and Well Written Essays - 250 words - 26

Questions - Assignment Example tion or Nursing could use the Internet to search for jobs through online recruitment agencies and through the official websites of organizations where candidates intend to apply. Some organizations even encourage sending of resumes online to facilitate the job screening process. Only those applications who meet the qualifications of the organizations are called for interview and eventual placement. 2) Sometimes in technical writing, it is necessary to categorize or group elements into appropriate categories. There are three techniques for categorizing: classification, division, and partition. Please explain what each of these means and why it is advantageous. Classification means grouping elements according to similar characteristics. As emphasized, â€Å"classification is the act of locating a specimen of all the different kinds of objects that possess a given characteristic or characteristics† (Nikko par. 4). The advantage of using classification is to highlight the presentation of items into a more structured manner. It is also revealed that â€Å"classification answers the question: What are the main types or kinds of this group of things? Division answers the question: What are the parts or characteristics that make up this single thing?† (Duncan 1). Thus, the advantage of division is providing additional details on the things that were initially classified. Further, partition means â€Å"the act of dividing a unit into its components. The parts do not have necessarily had anything in common beyond the fact that they belong to the same unit† (Nikko par. 8). The technique of partition is beneficial in terms of pr oviding information on the parts of the object or item that was previously identified under the division

Is there a relationship between age and gender with PTSD symptoms Research Paper

Is there a relationship between age and gender with PTSD symptoms - Research Paper Example Approximately more than two thirds of people within the general population may experience an axiological event of trauma within their lives with up to a fifth of persons living in the United States experiencing such an event in any year (Sandro, Arijit, & David, 2005). These events range from rape, motor vehicle accident, physical assault, and natural disasters. Events such as motor vehicle accidents, floods, terrorist attacks are traumatic events which many persons experience within their life and have the potential of precipitating into a wide array of physical and mental health disorders. For instance in a survey carried out united States residents, thirteen percent reported a lifetime exposure to human generated or natural disasters (Davidson, Hughes, & Blazer, 1991). PTSD is one of the most commonly studied and to a great extent, the most pleonastic and debilitating psychological disorder culminating from traumatic events. This has increased interest and attracted attention of p sychiatrists, psychologists, and interested researchers alike and is rapidly taking center stage when it comes to psychological disorders in the medical world. It is the sole intention of this paper to demonstrate how age and gender of persons relates to the occurrence of PTSD symptoms. It will focus on the difference in severity of PTSD symptoms in terms of gender and age. The study will target adult male and female persons ranging from thirty to sixty years and children ranging from six to twelve years. Another group will be included ranging from fifteen to twenty nine years composed of both male and female persons. Literature Review This study has been limited to research studies that were conducted between 1990 and 2008. Within this period there has been research events conducted as relates to PTSD but a profound absence of work that underscores the relationship between the severity of PTSD and the age and gender of persons. Therefore the bulk of the research seeks to investigat e this particular issue and give critical information contributing to the known facts as relates to PTSD. I have singled out pre-existing literature that contains critical information that is of great importance to this research event. One such article is the epidemiology of post-traumatic stress disorder after disasters (Sandro, Arijit, & Vlahov, 2005). It gives reliable epidemiological information that relates to PTSD symptoms and sets stage for a more conclusive and a much wider research effort to develop statistics of PTSD severity symptoms with relation to not only disaster but many other etiologies of PTSD. Although specific traumas have their effects well documented and established, many persons both in research and clinical settings have experienced more than a single traumatic event in their lives (Breslau, Chilcoat, Kessler, & Lucia, 1999). Of these persons, some report symptoms of PTSD that indicate the combined effects of two or more of these traumatic experiences as opp osed to mainly their latest trauma or the severest from of trauma they have been exposed to. There is an increasing amount of literature suggesting that the severity of a persons PTSD symptoms can be predicted by the lifetime number of traumas that an individual has experienced (Norris, 1992). These studies and cumulative trauma literature fail to give significant information

Avon Calls on Foreign Markets Article Example | Topics and Well Written Essays - 1250 words

Avon Calls on Foreign Markets - Article Example This sometimes leads to marketing failures in many countries. In this orientation, basically, the products remain the same as in the head production unit, only, the locale that they are sold in changes. Avon has many such core products that it sells globally. Customer orientation, however, asks questions as to how the product and marketing methods can be changed, in a country, in order to be able to stay and do business there. This is especially important to an organization when they move into a country where the size of the population, or the potential of growth is attractive. Oftentimes a company may develop products exclusively for the country in question in keeping with the demand there. In China, when Avon went into their market, direct marketing was not allowed. However, the sheer size of the population made it a very attractive location for Avon, hence, the company changed its marketing strategy here and allowed beauty botiques, beauty counters, and independent stores to operate; thereby, making its products available virtually all over the country. Strategic Marketing orientation is actually a mixed strategy combining all 3 orientations of sales, customer and production orientation. Pricing and quality are also important criterion. Avon uses this strategy wherever necessary, in order to keep the business alive and flourishing in a country. Why is Avon so much more dependent on its foreign operations than on its home (U.S.) operations? Founded in 1886, Avon;s headquarters are in the US. It is one of the largest and oldest marketers and manfucatures of beauty related products. However  ¾ of it marketing and sales operations are in 66 countries and territories over the world. Another 44 countries are also on its distribution list. The reason that Avon went interntional was due to the slow growth in the U.S. market, and hardly any, or very limited potential for expansion. There already was a glut of

Serving In Florida Essay Example | Topics and Well Written Essays - 1000 words

Serving In Florida - Essay Example The story â€Å"serving in Florida† is a story about a woman, Barbara Enrenreich, who started her life on a â€Å"low-wage life† in the Key West of Florida.  Among her  main  fears is that some locals may  possibly  recognize  her.  This recognition from locals interferes with her  main  task of investigating lives of the working poor. Barbara starts her life in Florida with an allotment of about $1,300 (Ehrenreich 16). The  amount  seemed too convenient to  enable  her pay two months’ rent on the apartment she rented. Afterwards, she embarks on hunting for a job. As her search for  job  continues, she realizes that there is no correlation between the number of vacancies or jobs available with the amount number of the available adverts. Moreover, it became apparent to her that the low wage jobs had high turnover. The high turnover  job  markets  facilitate  the main restaurants and hotels to keep the ads running. Regardless o f the tussle in the job search, the author proceeded with job search, and  eventually  managed to be hired. Her first job experience in Florida was the  application  of the job to the Winn-Dixie that had a computerized interview. The question asked wanted her to  determine  the  amount  of dollar  worth  the stolen goods the  prospective  employee had purchased in the previous year, or would he or she have turned in one of the employee to  steal. The  final  computer interview question was, â€Å"are you an honest person?†... Barbara engages herself into  several  job searches; however, she declines to  accept  the job offer at the Hearthside restaurant. The rejection might be because Barbara contemplates on spending  additional  $2.15 per hour on the trips that are associated with that job. Nonetheless, she settles in being a  waiter, and a  waiter  named Gail takes the  task  of training Barbara. Gail is a  woman  in her forties, has ever been homeless, and has for most her life  spend  her nights in her truck. Just recently, her boyfriend is murdered in prison. Another waiter by the name Joan also starts liking Barbara. Joan has three kids to whom she raises in a mobile home all by herself. There seems to be a  tremendous  generosity within these women that have never been noticed. Some of these traits are witnessed in their extra croutons in serving salad whenever the  management  allow  them to only  extra  six, or an  extra  rolls whenever the  manag ement  allow  them only one. Barbara after a while begins to develop these traits of  generosity  and caring, particularly towards customers and her coworkers. These ideals are clearly demonstrated, when Barbara clienteles and serves customers and her fellow workers with the  best  of  dinner  experiences she  acquired  before she became a narcotic (Ehrenreich 293). It is  apparent  that as Barbara is carrying out her duties as a waiter, she  truly  accomplishes her  mission  of investigating the lives of the poor employees. One day while wrapping some silverware, Gail told Barbara that she (Gail) was contemplating of hiring a  room  that would cost her between $40 and $60 per day (Ehrenreich 48). Barbara then asks her why she could  go  for

Developing Students Accuracy and Automation in Subtraction Math Facts Essay

Developing Students Accuracy and Automation in Subtraction Math Facts to 100 - Essay Example to get the remainder zero we have to subtract 3 repeatedly from 15 and it's subsequent remainders. The logic is plain and simple, such fundamental knowledge doesn't make the student stereotyped and he can innovate and conclude the real life problems in a better manner. The less the students minimize their dependency on calculators, the better equipped they find themselves with faster calculations. A quick way to estimate the difference between numbers is to round each number and then subtract the rounded numbers. This probably won't be the exact answer but it may be close enough for some purposes. An estimate can sometimes be improved. If the sum of 645-450 were estimated, we would round 645 to 600 and 450 to 500. The estimate would be 600-500 or 100. One number was rounded down and the other was rounded up. The number 645 was rounded down by 45 and 450 was rounded up by 50. Adding 45+50 gives 95, which rounds to 100. Therefore, a better estimate would be 200. The actual difference is 195. Moreover, the students should make it a habit to calculate their bills, subtract the discounted price and to find out the remaining balance on their own. This will sharpen their skills. Nothing can be more blissful than Self- automation. Source citatio

Reflection paper about residential school Essay Example | Topics and Well Written Essays - 500 words

Reflection paper about residential school - Essay Example It seems the schools also had a larger purpose of eliminating the cultures of indigenous people in Canada. The problems started by sending the children to schools far away from home. Putting the native children far away from home and not allowing their parents to visit was psychologically devastating to the children. To worsen the situation, the government developed laws to force every child to attend school and forcefully remove children from school for the retraining. If the residential school system had good motives, then why force children to such schools. I think this was just a plot to remove the Indian culture by breaking the transmission chain through excluding children from their culture and putting them in complete isolation. The government’s slow response to the report issued by the Royal Commission on Aboriginal People further highlights the ill motive of the residential school system. The report extensively elaborated the abuse and neglect facing the natives in these schools. The food was inadequate; there is poor sanitation; they were overcrowded; students were malnourished and often abused by the teachers. The children were also exposed to diseases both deliberately and from the poor conditions in the schools. Rape, murder, sterilization and forced electrocution were among the problems reported by the Commission (Cherrington 1). Therefore, one is left to wonder if these are schools or some form of government torturing facilities for suspected terrorists. The residential school was fair to the natives. Despite coming from different cultures, these children are not in any way entitled to be treated as animals. It is important for government and people to respect the ethnic backgrounds and cultures of different individuals. I do not see any reason for developing initiatives to eliminate the customs of the natives. Why even create the residential schools in the

Isolation of Vibrations Caused By Human Sources Essay Example for Free

Isolation of Vibrations Caused By Human Sources Essay There are many different forms of vibrations that occur on account of human interactions and human involvement. In theory, these vibrations could cause a lot of problems for those who are trying to manage their buildings and structures. There are many different types of vibrations that can be caused by humans. These types of vibrations can include vibrations from trains, cars, airplanes, people who are outside of the structure, and the vibrations caused by small equipment. There are many different things that are done to structures in order to improve their ability to be able to handle the vibrations that are available for both inside the structure as well as what are available when building the structure. These precautions can help the building to be able to withstand the vibrations without causing structural damage or problems. The objectives will be to look at the overall importance of structures being able to withstand vibrations as well as the general knowledge that is needed in order to ensure that the vibrations do not cause structural damage in any form. Through Chapter 2 a literature review this report will look at the various reports and information that are available about vibrations and the various types of vibrations. The report will also look at the different types of problems that could occur within the structure as a result of the vibrations. The various types of precautions that are used to reduce the likelihood of structural damage from vibrations will also be looked at. As will the information that is new and shows the new research and technology that is available. This will all be done through a thorough review of the literature that has been written about the subject. In Chapter 3 the theory being discussed is the idea that structures are subject to a variety of vibrations at all times on account of human interaction with the structures. The theory is that there needs to be precautionary measures taken in order for the structures to be able to withstand the vibrations and therefore not have any structural damage as a result. These types of precautions can include both structural improvements within the structure as well as protecting certain parts of the structure. There are many different types of precautions that can be made and all of them have their own ways of protection for the structure from the dangerous vibrations. However there are many new things being developed through technology that could vastly improve the structure’s chances of withstanding the harmful vibrations. In Chapter 4 a lot of research will go into this report on how these improvements which will be discussed through the previous chapters can truly be the most affective. Analytical analysis of the problems as the solutions as well as the benefits of new technology will be discussed. Both the positive and negative aspects of said reports will be looked at and in the end the structures involved will be able to have the best structural chances possible at this time. These conclusions will be brought forth by information that has been researched and reviewed and through the process of analytical thinking to come up with ways that there can be improvements as well as things that should be continued or discontinued based on their probability of working. Through Chapter 5 it will be noted as to how the conclusions were made in Chapter 4. It will discuss the ideas, thoughts and theories behind the analytical conclusions and how these things were processed. This section will discuss the key points and the validity of the conclusions that were discussed in the previous chapter as well as how these things can be beneficial in being able to make further structural improvements. In Chapter 6 there will be a summary of the information included in the paper. There will also be conclusions that were obtained through the research as well as the information that will help to improve the structural components in being able to identify and withstand varying levels of vibrations. The main purpose of this report will be able to offer information that can be used in order to be able to better manage the overall design concepts and challenges in relations to being able to assist in having structures that can better withstand varying levels of vibrations.

Adolescent Truancy Essay Example for Free

Adolescent Truancy Essay I choose to do my paper on â€Å"Playing Hooky†: Examining Factors that Contribute to Adolescent Truancy, because of the position I am currently in at work places me in several different school s all year long. I have seen the effects and causes of adolescent truancy first hand. This article is a review of previous data that was obtained from Youth Advocate Programs, Inc. This article clearly states that it is a research article, and the research is from a study that compiled data from 20 students. The researchers looked at all variables that play a factor in adolescent truancy, to include family environment, living situations, community involvement, severity of substance use, duration of substance use, and peer victimization. Based on the research from the article on adolescent truancy I learned that truancy has become an ever growing problem and is caused from several different factors. Adolescent truancy is caused by multiple out-of-school and in-school factors. The majority of abscises are driven from outside factors, such as family problems, living conditions, substance use, and community involvement, and school factors, like bullying or hazing. Looking at the research by Dube and Orpinas(2009) it breaks it down into three main behavioral profile groups based on reinforcement be it negative and positive reinforcement, also no reinforcement. Positive reinforcement is things like skipping school to go to the mall or skate park things of that nature. Negative reinforcement is family conflict, living conditions, and substance problems. With substance abuse problems leads to more skipping school, and with skipping school leads to more substance abuse problems, so they both feed of each other. The research is supported by the data that was collected from a study that was done with 20 kids, ages 8-16 and grades 5th to 11th. This article fits in the overall field of sociology because it takes something that needs to be dissected and helps break down the trends and reasoning be hide what is going on, Furth more it opens our eyes to the key indicators to look for if we have a problem like this. Sociology breaks down thing so we can see the reasoning that something may be happing and I think this article does just that. I feel that the chapter that this article would best fit in would be chapter 9 Deviance, because the article cover truancy which is deviating from what you are supposed to be doing and shows why people would be doing this. This article is different because magazines and newspapers do not explain what is going on in this much in-depth information. Non-scholarly periodicals are usually just a brief summary of what is really going on and hitting the key points. This article is done from studies that have been done as well as surveys that have been completed. What this article and non-scholarly periodicals do have in common is that they both do lay out the key points to their research as well as credit the sources that they received there information from. Refrences Dimmick, J. Yanira, C. Aleka, L. and Holly, B. (2011). â€Å"Playing Hooky†: Examining Factors that Contribute to Adolescent Truancy. EBSCOhost. Retrieved from https://web-ebscohost-com.libdatab.strayer.edu/ehost/detail?vid=5hid=25sid=ea8658a5-82b9-4bf5-9730-404a1a35187f%40sessionmgr11bdata=JnNpdGU9ZWhvc3QtbGl2ZSZzY29wZT1zaXRl#db=a9hAN=6966092

Utilising Health Promotion Models

Utilising Health Promotion Models Health promotion is a new public health initiative which has been integrated into governmental strategies to improve health either within a family, a community, health institutions and work places. It refers to effort to prevent ill health and promote positive health with the aim of enabling people to take control over their own health (Wills, 2007). This essay primarily seeks to discuss how a health promotion model could be utilised by nurse practitioners to facilitate an empowerment within a family unit. Health action model (HAM) will be adapted to develop a means by which the said patients could be helped by the nurse practitioner. The essay begins with a general overview and literature about what health and health promotion is about, and then narrows the discussion down to the health promotion model which will be used to assess a patient named Jojo (See Appendix 1 for patient profile). The essay then concludes by evaluating the model used in assessing the patient and if any othe r model could be used to assess the patient or not. DEFINITION OF HEALTH According to the World Health Organisation (WHO)(1986), health is defined as a condition of complete social, physical and mental well being of a person and not purely the absence of disease or infirmity. This when elaborated could mean that both positive and negative aspects of well being and health, which stressed on social and mental aspects of health, though not just illness related. Waxman et al., ( 1998) even emphasised that physical , social and mental aspect of health are connected. There are several factors to determine health including social factors, gender, education, environment, biological factors and lifestyle. According to some scholars like Skolnik (2008) describes social factors as an essential factors that determine the health of individuals. Based on his view, there is a great difference between people of higher status to that of those of a lower status. This is because those with a higher status are well educated, well employed and earning a lot and also taking ca re of their health. This when compared to those with a lower status, it is the opposite of those with a higher status. For instance, someone on a low income may find it difficult to afford some of the necessary needed in order to live a normal life like keeping the house warm or replacement of faulty stuff in the house (Anderson and Blenkinsopp, 2001). Moreover, those who are better off do not buy form local shops at expensive prices but rather do travel for miles to bigger supermarkets to shop. This is because things sold at the supermarkets are of a cheaper price and of more quality than those in local shops. The other side of the story is that, the better off do not depend on public transports to travel for miles to shop whilst those on a low income always do so. So if the bus does not turn up, they have to go to these local shops to but their foodstuff (Anderson and Blenkinsopp, 2001). SOCIOECONOMIC FACTORS The ideas of (Skolnik, 2008, Anderson and Blenkinsopp, 2001) can be supported by (Shi et al, 2008). Shi et al., (2008) suggest that socioeconomic also plays a significant role in peoples live. That is those who are well off tend to live in better houses and in locations where there is the risk of being exposed to air pollution is low, have better access to health care, avoid risk lifestyles such as smoking and drinking as well as using of drugs. Building on with their argument, it was proved that the correlation and status concerning the health of Americans who are less educated died younger than those highly educated as described by (Shi et al, 2008). In addition to this, those who are more educated tend to have much knowledge about their health as well as practising good health. That is, they are equipped with knowledge as well being in charge over their lives knowing what is and not good for them. This also helps them to have loads of information which will help them understand how to live a healthy life. For instance (Skolnik, 2008) said that a person who is well educated will adapt a good lifestyle in order to remain healthy such as having a well balance diet, having fewer children and smoke less as weigh against those who are less educated. ENVIRONMENTAL FACTORS The environment also acts as an important factor that influences the health of people that includes a mixture of different factors altogether (Anderson and Blenkinsopp, 2001). Shi et al., (2008) argued that physical, socioeconomic, socio-political and sociocultural are what the environmental factors are made up of. For instance, physical environmental factors are important factors which influence health. This includes food, contaminated water, waste, air pollution, and habitat alteration that can cause different health problems. For example living in a smoky environment can cause respiratory illness such as asthma. The contribution of (Carter and Slack, 2009) described the interaction of a persons environment as having both negative and positive effects on them. That is a person living in an environment where there is access to health care, good drinking water, less risk of environmental pollution and radiation leads to good health with a positive effect as an outcome. On the other side, those living in environments where there is a poor access to healthcare, drinking contaminated water, exposure to environmental pollution and radiation lead to a bad health which is exactly the opposite of those living in good environment as said by (Carter and Slack, 2009). BIOLOGICAL FACTORS Furthermore, (Kozier et al, 2008) said that some of the biological factors that influence health are genetic makeup, age, sex and developmental level. In terms of genetic makeup, it can have an effect on the persons intellectual stage or activities and innate personality. This also can have negative features on a peoples health whereby they are prone to susceptible to particular diseases. Nevertheless, it was made known that people who are more susceptible to genetic diseases are mostly much greater in parents from the same ethnic genetic pool as said by (Kozier et al, 2008). For example in a family where there is a history of asthma or heart disease will by all means affect the other generations of that family. GENDER As stated by (Naidoo and Wills, 2009), gender also accounts for the factors which influences health. That is, women are more likely to report illness that men because most of these women are unlikely to be in full time employment. Women on the on the other side of the story tend to have more access to health care because they are anxious about their health and always want to stay healthy as compared to men whereas they only take less advantage of their health. According to biological explanations, women are more prone to infections and do gain from the protective effect of oestrogen that decreases the death rate of such infection in them. More so, it was further explained by the biological explanations that the female hormones and the reproductive system causes women to be responsible for both physical and mental health illness as described by (Naidoo and Wills, 2009). LIFESTYLE Kozier et al., (2008) argued that lifestyle also acts as a factor that influences the health of people which however does have both negative and positive result on the individual concerning their choice of living. This includes individuals having control over their lives in association to their behaviour or activities that involves living condition and sociocultural factors. For instance, eating healthily will help individual with their weight management even when they get older. Another example is how exercising is of a great benefit to the body. This is because exercise help decrease the risk of developing stroke, heart disease, prevents fractures and weak bones and also maintaining flexibility in the joints. This was further explained in terms of spiritual and religious beliefs as having impact on peoples life. For instance, (Kozier et al, 2008) gave a typical example in relation to the donation of blood by members of the Jehovah witnesses. This group of people avoids the donation of blood which is also against their beliefs because it is not written in the bible. DEFINITION OF HEALTH PROMOTION TALK ABOUT EDUCATION, TRAINING AND COUNSELING AS THE NURSES ROLE IN HEALTH PROMOTION Health promotion is defined as ways of allowing individuals to enhance control over their health as well as to improve it as defined by (WHO, 1986). It encompass various approaches including bio- medical, behavioural / life style and socio- environmental. Though critics have argued that behaviour / life style approach have various limitations including expect- led which is a top- down approach. For example the nurse led approach to the patient. Regardless of the above mention, Jackson (2007) states that the role of the nurse in health promotion is very essential because it lays emphasis on how the health care and the service provided are viewed. In terms of promoting health, it involves the nurse spending time to listen and to talk to their clients or patients. This involves taking the needs of their clients or patients into consideration using high level of communication skills. Ewles and Simnett (2003) said that through effective listening, the health promoter can help people to speak out their point of view as well indicating their needs and how they feel. This will enable them believe that they are being listened to. Effective listening is an important aspect of communication in terms of health promotion which includes eye contact, facial expression, posture or gesture indicating the feelings of clients. This helps the nurses to listen to their clients carefully without disruption. Through listening, the nurses are able to capture majority of what the clients have said. This enables them to confidently ask lots of open ended questions in order to demonstrate to them that they are being listened to as stated by Morrison and Burnard (1997). An example is a client not wanting to speak to the nurse attending to him because of the disease he has been diagnosed of. Through sympathizing and listening, the client will gain the confidence to speak to the nurse regarding his condition. Jackson (2007) again outlined that through health promotion, the clients are involved in making decision concerning their own health care. This is also a client centred which is based on the assessment of the needs of the clients by taking their point of view into consideration as well as valuing them. Moreover, Rose (2006) states that knowledge is being increased through health promotion which helps people change their behaviour. This is because each individual is responsible and making choices about their health without taking factors that may have influence on them such as socioeconomic factors. Hence, through health promotion, the nurse as a health promoter will give much information to the client in the form of leaflet and using different resources such as information from trusted web sites to educate the patient or client by talking it through with them or one to one basic in the form of counselling (Neis and McEwen, 2001). The client or patient together with his or her family will gain the knowledge about what they are being told which will lead them in making the choices about their health. For example, the nurse advising clients about healthy eating such as eating five a day and its benefit or the side effect of overeating, smoking and drinking. So after giving them all th ese information it is in the own interest of the client to either adopt a healthy lifestyle or not. It is the responsibility of the nurse practitioner as a health promoter or educator to form of a therapeutic or beneficial relationship between the nurse, community individuals and their families. Through this therapeutic relationship, the nurse is able to develop ideas, other nursing interventions and resources which will help facilitate empowerment (Neis and McEwen, 2001). For example, before a nurse can persuade a client to quit smoking, she must know what the effect of smoking is and explaining it to the clients in a simplify language with confidence. Advocacy is also an essential aspect of health promotion. This is where the nurse practitioner helps people especially vulnerable people who are disempowered within the society that cannot speak for themselves because of their disability or illness makes choices for their health. This is done via taking possible measures to help them become self empowered and independent (Elwles and Simnett, 2003). INTRODUCTION OF THE MODEL Narayan-Parker (2002) defines empowerment as shaping of peoples life through the enlargement of liberty of choice and action. There are two types of empowerment which are self empowerment and community empowerment. The self empowerment in terms of health promotion is based on counselling which includes non-directive measures and is a client centred approach with the goal of enabling people to be the controllers of their lives at a higher level. (MOVE THIS PARAGRAPH) There are lots of health promotion models but because of Jojos condition, the HAM developed by Tones in the 1970s will be used to assess Jojo falls under behavioural change model will be used to assess him. The behavioural change model recognises health as a possession of the individual being in charge of it by adopting the kind of lifestyle that they want to in order to maintain it. This is because the aim of this particular model is to persuade people to change their behaviour by adapting a better lifestyle which will help maintain their health as described by (Naidoo and Wills, 2009). The HAM as stated by (Squire, 2002) gives an idea as to why some people decide to change to healthier lifestyle whilst others may not by emphasising on the self concept of the individuals. The self concept includes self esteem which is how people feel about themselves and self image which is how they perceive themselves to be. (REF). Squire (2002) made it known that people with a high level of self e steem and self image are persuaded or enthused to adopt a healthier lifestyle. On the other side of the story, those with a low level of self concept may feel that they are less likely to adopt such lifestyle with no hope of doing so because they believe that they are not in control of their life but rather controlled by fate, chance or luck as described by (Squire, 2002). The HAM has identified different factors that influence the ability of people to change to a healthier lifestyle. These include psychological, social and environmental factor which indicates the likelihood of a person to change his or her behaviour by putting them into practice. However, there are other manipulating relating factors such as beliefs, motivation, normative and the self that works together to indicate the possibility of a persons intention of changing his or her health lifestyle (Green and Tones, 2010). The four manipulating factors which are beliefs, motivation, normative and the self factors will be elaborated on to access Jojo and his family. INTRODUCTION OF PATIENT, Upon using the Body Mass Index (BMI) calculation on my Jojo during a clinical practice as a student nurse, it was deduced that Jojo is overweight. Several questions were asked to ascertain the causes of his overweight. It was however noticed that, family lifestyle could play an important role in Jojo being obese. As a student nurse practitioner, it is therefore vital to promote initiatives that could help Jojo and his entire family to adapt good healthy practices. Various models do exist in health promotion to effect behaviour change (Naidoo and Wills 2000). In practical terms, any model for desired change must indicate what they are doing, why they are doing it, how they going to do it, its outcome and its side effects. Obesity is affecting not only developed countries but that of developing countries which has been a global concern and posses a great challenge to medical practitioners (Jackson-Leach and Lobstein, 2006). It is real that human beings cannot live without food, it is therefore essential to understand the effects that food has on the body of humans and knowing how to keep the body in a good health by eating a balanced diet. It is also essential to give the body whatever it needs knowing that the body needs nutrients to grow. It should be borne in mind that the choices of food have a long term effect or impact on the body. Eating a healthy diet can reduce the risk of illness such as obesity (Bupa, 2008). This is because most problems encountered by health practitioners is that of obesity especially in children leading to a negative effect in adulthood if the necessary means are not taken to prevent it from the onset. Childhood obesity is a condition where excess body fat negatively affects a childs health or wellbeing. (Wang, 2001). As stated earlier, obesity in childhood can lead to many other health complications that may even tend to indicate that that child will be obese later in adulthood. The techniques to determine body fats directly are difficult, though diagnosis of obesity is often based on Body Mass Index (BMI) (Hesketh, 2005). Due to the rising prevalence of obesity in children and its many adverse health effects it is being recognized as a serious public health concern. The term overweight rather than obese is often used in children as it is less stigmatizing. Obesity increases the risk of insulin resistance and type 2 diabetes which is normally a disease seen in later life in adults. However, increasingly children in their teens are presenting with type 2 diabetes as a consequence of being obese. There are also marked psychological effects leading to low self-esteem which is how they feel about themselves. (Shahar, 2005) In the UK, around 27 per cent of children are now overweight and research suggests the main problem is a continual reduction in the amount of exercise children take. Many overweight children have overweight parents which is often a matter of family lifestyles (Shaya, 2008). Statistics do specify that there was 5.9% increase in obesity among children between the ages of 2 and 10 years from 1995 to 2002 (Department of Health, 2004). The trend of child obesity prevalence in the UK keeps increasing yearly. To effect a change therefore requires effective intervention based on evidence. Evidence based practice in recent times has attracted the attention of medical professionals as well as other health care practitioners about how the rate of obesity is increasing especially in children(Daly et al, 2007). Since the three system stated in HAM which are the beliefs system, motivation system and the normative are dimensionally linked together, each of these factors will first be defined before using it to access the patient and his family. The normative system described by (Green and Tones, 2000) is an influence by peoples expectation that leads others to act in agreement to the perception of others so that they would be liked by them. For example, This assignment has adapted behavioural change model to empower Jojo and his family to change their attitudes, beliefs and behaviour on their family lifestyle .Though, the theory of planned behaviour suggests that, the intention to perform a certain behaviour is influenced by the risks and rewards associated with that choice (Corcoran, 2007). This will be discussed in three sections which may be interconnected as described in HAM namely normative, cognitive and motivational system. CON + INTER Literature suggests that initiatives or interventions must acknowledge the needs of people and create a supportive and working environment which will aid an integration of their daily activities (Baric 1994) to influence behaviour change. Though, one way to promote health is to change behaviour by modifying individuals knowledge, beliefs and attitudes. However an increase in the knowledge acquired may not necessarily lead to behaviour change (Bandura, 2004).In behaviour change, the choice is with the individual (Corcoran, 2007), but Norms + INTER it can be facilitated by positive agents of behaviour change or influential people such as parents, teachers and etc, who may act as agents for behavioural change, influencing norms or customs usually as a result of direct exchanges and discussions (Turner, 1999). According to the conceptual theory, behaviour change like modifying knowledge works better when used in combination with other approaches such as empowerment and other factors (Pajares, 2004). Motivation Therefore positive agents when empowered might dispose high initiatives and exceptional interpersonal skills to enable them reach out to others (Turner, 1999). In Jojo case, the family will be empowered via training on healthy eating, habits, exercises and other skills which will help them achieve the planned goals. Management and intervention of obesity(talk abt what schools can do, change individual levels) Schools EVALUATION OF THE MODEL The evaluation of the HAM will be embarked on after the management and intervention which is concerned with a long term change. Hence, evaluation of this model will be the right of measuring the outcome of the interventions. As described by (Naidoo and Wills, 2000) it is hard to point out the long term outcomes to one intervention or model that adopts the behavioural change model. On the other hand, interventions applied by single organisations often affect the long term change because these interventions need to rely on many organisations in order to achieve something at a higher standard. Nevertheless, the nurse practitioner will work in collaboration with different organisations in order to help individuals change their lifestyle for a better outcome such as the school, dietician, social service, Due to Jojos condition and the familys situation, the nurse practitioner will have to assess Jojo using the HAM but must have to take into consideration some of the factors that may act as modifying factors. For example, peers pressure may act as an agent to undertake unhealthy diet and other perceived barriers such as lack of money or not having the time. Therefore, the nurse practitioner will be accountable for providing a program that will help overcome these factors because if the perceived barriers are not dealt with, then the participation will be less. However, to evaluate the HAM used to assessed Jojo, three types of the evaluation methods will be used namely process evaluation (i.e formative evaluation. The way things are done, monitoring of progress during program), impact evaluation (short term outcome, the impact of the intervention on the audience. Eg. Comments from the audience, peer group) and outcomes evaluation (i.e summative evaluation, measurement of challenge at the end of the program, measure the consequences, the long term effect of the intervention) The belief system is where the individuals belief that he or she is at risk of a particular condition and suspecting it as real. Becker (1974) a health belief model made it known that demographic variables such as susceptibility, seriousness, cost, benefits and cue to action are taken into consideration for behaviour changes. That is people are persuaded by the way they see themselves in such situation either it is a demand for them to fight or flight or an illness as well as how severe that situation is. More so, (Green and Tones, 2010) state that there is a relations between the belief and motivational system whereas beliefs are referred to as cognitive and how people make their own judgement about how an event is likely to happen which is known as the subjective probabilities. Apparently, Jojo is aware that his dad died of high blood pressure with obesity as being the cause. Now that Jojo himself is overweight and knowing that his life too is at risk and if such measures are not taken to help him changed to a better lifestyle, something different will come up. Looking at all these episodes surrounding his life, he will be tasked by these challenging beliefs to change to a healthy lifestyle. His mum on the side will also encourage him to change his eating habit and not Jojo alone will she encourage but the rest of her children as well. Nevertheless, the belief of an event likely to take place will cause the emotional state of the individuals or to give rise to the persons attitude of adhering to a particular action (Green and Tones, 2010). That is people with optimistic attitudes see both behavioural control and normative pressure above their behaviour will enable them to adopt a strong intention to change their behaviour. ( Fishbein and Ajzen 1975) The belief system will have effect on the persons self concept for taking such an action will all be considered by the person. This is because self concept links to the beliefs system indicating how people develop broad analysis about themselves. This includes their temperament, attitudes, abilities and beliefs. This is related to how people say and do and the way they understand feedbacks given to them by others (Plummer, 2005). This belief system will not only affect the persons self concept only but also on the self efficacy. This is described by the social cognitive theorist (Bandura, 1997) as ones ability to carry out a task in a way that will lead to a particular goal. Powell (2005) said that people build up self esteem as they grow older. Hence, self esteem is described as how people feel or perceive themselves which includes their way of looking, abilities to do things and relationships with others (Powell, 2005). Therefore, people with a high self esteem perceive and belief themselves to be important, worthy and feeling good about themselves with a positive self appraisal as stated by (Kasser, 2002). On the side of the story, how people feel about themselves can lead to poor coping of such demand. This is because (Kaaser, 2002) states that people with a low self esteem feel being unwanted, unloved, worthless, neglected and belittled. Furthermore, because Jojo is aware that he is overweight and in the position to change to a healthier lifestyle, his attitude towards that will lead to a strong emotional state that will empower him to adapt to that change as well as coming with a positive outcome. In Jojos case, It is suggested that people who have a strong and a permanent objective to change to a particular behaviour are motivated to take actions based on their intentions to do so. On the other hand, it was also manifested that though some individuals are extremely serious to change their behaviour, their intention to do so are not that strong to enable them fulfil that action. This is because for any action to be fulfilled, other factors act in association with it such as beliefs and poor emotional state which always make it difficult for some people to achieve the targeted action (Ajzen, 2005). Since Jojo is obese and is highly motivated to lose weight, the intention to do so must be in the form of meticulous information of how to put that intended action into practice. For example, the planning of this should include how to go about it like when to exercise or the quantity of food to be eaten daily and the variety. Other intended actions to be taken include walking to school instead of taking the bus. This on the other side will take time for him to get there thereby leading to a poor emotional state which will drive him to get the bus if his intentions are not strong to act on the targeted actions. The community and societal norms also play a major role in shaping the behaviour of people as well as having influence on them especially by those around them such as families, peers and friends. This is because (Anderson, 2004) said that community norms act as persuasive principles that show the actual things to and not to be done by the individuals which influences peoples health leading to a behaviour change. Social norms on the other side as stated by (Shanrma and Malhotra, 2007) helps people to know what acceptable and abnormal behaviours are. This is based an agreed behaviours established by members of that society acting as a strong influence on their social behaviour. Further to this, the theory of planned behaviour suggest that the intention of a person to act on his or her behaviour depends on normative system or beliefs which comprises of peers, parents, societal norms and close friends. Hence, the person wanting to change his or her behaviour will have to belief that these groups of people will agree or disagree with the intended behaviour to be carried out (Ajzen, 2005). It is this group of people which are normally refer to as behaviour change agents. Nevertheless, Tone and Tilford (2001), assertion that the way people view the national norms and their motivation in order to act to these norms will be less likely to be important than the norms or practice of their community and the associate motivation to comply to it. Unequivocally, for Jojo to take up this action, his mother acting as an agent can help persuade him to take up that action regardless of its side effect such as drive, where he will be feeling hungry and will be tempted to eat more to satisfy himself. His peers on the other hand of the story, because Jojo is being bullied by them because he is overweight, that alone will make him feel that he is overweight, which will intend motivate him to change his eating habit leading to a high self efficacy. According to .., those with a high self efficacy are capable of performing a given task such as exercising; dog walking, going to the gym and eating healthily in order to lose weight. However, those with a low self efficacy will be persuade not to take up that action because they feel they cannot make it and do not have the confidence to go about it. This will also lead to a low self esteem which is where that fellow sees or value him or herself to be. That is to be responsible for own feelings or emotions by own values about the self in order to carry out a particular task (Green and Tones, 2010). This could also be linked to the theory of planned behaviour developed by (Fishbein and Ajzen 1975) in association with HAM for behavioural change. On the other side of the story, families, peers, friends and other networks also act as a strong influence on the normative system. MANAGEMENT AND INTERVENTIONS OF OBESITY Various methods and interventions are being used to manage obesity in children. Goldfield and Epstein (2002) said that parents can be used as agents in tackling behaviour change in children. This is because it increases the chances of changing the environment as well as providing them with the necessary supports. This can also be termed as stimulus control whereby parents will be persuaded not to bring such food stuff into the house like foods high in fat or energy dense foods. This will not only help the child that they are trying to change his or her behaviour but also the other family members (Goldfield and Epstein, 2002). Nevertheless, adaptation of dietary intake, increasing physical activities and time spent on inactive behaviour should be reduced which will help prevent individuals from becoming overweight. More so, the amount of time spent watching television should be monitored and parents should see to it that they do not allow their children spend much time watching television as said by (McLennan, 2004). The ideas of (McLennan, 2004) can be supported by the view of (Rippe and Hess, 1998). Rippe and Hess (1998) said that physical activity plays a major role

Comprehensive Evaluation of Patient Essay -- Nursing Paper

History Mr. S. G is an eighty year old African American male who was brought into the emergency room of County Hospital on the second of May, 2015 and was admitted with the complaint of Respiratory distress. He has no known allergies and he is on full code status. While he was at the hospital, Mr. Geis was diagnosed with Hyperkalemia, Hypernatremia and acute renal failure. He was then transferred to the intensive care unit to be stabilized and then transferred to the floor for recovery. He has a past surgical history of vertebrae fracture from a fall seven years ago. He also has a past medical history of pneumonia, prostate cancer, diabetes, cardiovascular accident, osteoporosis and hypertension. Mr. Geis is a retired school bus driver and has been married to his wife for forty-five years. They have five children together. He used to drink alcohol heavily and also was a smoker, smoking a pack of cigarettes a day but stopped nine years ago. He enjoys fishing and travelling but has been unable to do this due to his deteriorated state of health. Acute and Chronic History Mr. Geis’ acute medical problems which include Hyperkalemia, Hypernatremia, acute renal failure and the chronic illness that are listed in his past medical history were aggravated by aging ,alcohol consumption and smoking. Organ function decreases with age which in this case, the ability of his kidneys to perform the excretory function decreased which thereby resulted in acute renal failure which is also the leading cause of Hyperkalemia and Hypernatremia in him. Also the chronic illnesses of Diabetes, Cardiovascular accident and Hypertension contributed significantly in the acute renal failure. The fracture of the vertebrae from a fall was aggravated by age and... ...better understand and manage the diseases that are affecting his health. References Sheldon,J.H (1960). On the natural history of falls in old age. British Medical Journal, 2, 1685-1690. Huether, S., & McCance, K (2012). Understanding Pathophysiology. (5th ed.).St. Louis:Mosby. Casino, S. (2009). episodic memory decay along the adult lifespan: A review of behavioral and neurophysiological evidence. International Journal of Psychophysiology, 71, 64-69. Shon beck, Joan. â€Å"Cerebrovascular accident.† Gale Encyclopedia of Nursing and Allied Health. Ed. Jacqueline L. Longe. Vol. 1. 2nd ed. Detroit: Thompson Gale, 2006. Nursing Resource center. Gale. Potter, P., and Perry, A. (2009). Fundamentals of Nursing. (seventh. Ed. St. Louis; Mosby. Lippincott W. & Wilkins (2014). Nursing 2014 Drg Handbook (Eighth Edition). Philadelphia. Lippincott & Co. 198, 233.

Imperial presidency :: essays research papers

Imperial Presidency 2 examples from 19th century - Lincoln suspended Habeas Corpus - Jefferson bought Louisiana, wasn’t his Constitutional right - Jackson breaks up national bank into many â€Å"pet banks† - Jackson forced out Cherokee Indians even after Supreme Court decided on Indian side: â€Å"Supreme Court has made their decision; now let them enforce it.† 4 examples from 20th century - FDR declared neutrality but sold Destroyers to Britain (Lend Lease) - Truman ceased a steel mill during Cold War because he didn’t like how it was running - Nixon ruined executive privilege, kept illegal actions secret until Supreme Court ruled it as a criminal investigation. (Watergate) - Nixon bombed Cambodia without Congressional approval, without congress or people knowing, caused country to fall under communism. - Reagan wanted to fund the Contras in Nicaragua who wanted to overthrow Communist rule, congress did not approve, so he sold weapons to terrorist group in Iran and used the money from the sells to fun Contras behind Congress’ back. -After FDR, no other president has approval to declare wars but invaded countries anyway, i.e. Vietnam, Korea, Afghanistan, and Iraq. 5 factors which lead to Imperial Presidents - The world has become more advanced, Interdependent economy - The changing times causes people to want a powerful president - Foreign policy is main factor, because the decision to go to war (Doctrines) - Gradual change after states of emergencies, i.e. great depression, cold war, and now 9/11 - The belief that U.S. is super power, therefore leader of U.C. should be as powerful - The party system falling apart, party leaders were weak, organizations were irrelevant, and president was the focus due to media (internet, TV) - The decay of parties left him with control of political scene - The change in economy, gives government new powers, but the opportunity goes to President (FDR’s new deal) - Nuclear age gave president good reason for executive privilege because no one else should know.

Powerful Winter Imagery in Edith Whartons Ethan Frome :: Ethan Frome Essays

Powerful Winter Imagery in Edith Wharton's Ethan Frome   Ã‚  Ã‚  Ã‚   Ethan Frome, the title character of Edith Wharton's tragic novel, lives in his own world of silence, where he replaces his scarcity of words with images and fantasies.   There is striking symbolism in the imagery, predominantly that of winter which connotes frigidity, detachment, bleakness and seclusion.   Ã‚  Ã‚  Ã‚  Ã‚   Twenty-eight year old Ethan feels trapped in his hometown of Starkfield, Massachusetts.   He marries thirty-four year old Zeena after the death of his mother, "in an unsuccessful attempt to escape the silence, isolation, and loneliness of life" (Lawson 71).    Several years after their marriage, cousin Mattie Silver is asked to relieve Zeena, a gaunt and sallow hypochondriac, of her household duties.   Ethan finds himself falling in love with Mattie, drawn to her youthful energy, as, "The pure air, and the long summer hours in the open, gave life and elasticity to Mattie" (Wharton 60).   Ã‚  Ã‚  Ã‚  Ã‚   Ethan is attracted to Mattie because she is the antithesis of Zeena. "While Mattie is young, happy, healthy, and beautiful like the summer, Zeena is seven years older than Ethan, bitter, ugly and sickly cold like the winter" (Lewis 310).   Zeena's strong, dominating personality emasculates Ethan, while Mattie's feminine, effervescent youth makes Ethan feel like a "real man." Contrary to his characteristic passiveness, he defies Zeena in Mattie's defence, "You can't go, Matt! I won't let you!   She's [Zeena's] always had her way, but I mean to have mine now -" (Wharton 123). To Ethan, Mattie is radiant and energetic.   He sees possibilities in her beyond his trite life in Starkfield, something truly worth standing up for.   Her energy and warmth excite him and allow him to escape from his lonely, monotonous life.   Ã‚  Ã‚  Ã‚  Ã‚   While Zeena is visiting an out of town doctor, Ethan and Mattie, alone in the house, intensely feel her eerie presence.   The warmth of their evening together is brought to an abrupt end by the accidental breaking of Zeena's prized dish.   Zeena's fury at the breaking of an impractical pickle dish exemplifies the rage she must feel about her useless life.   "That the pickle dish has never been used makes it a strong symbol of Zeena herself, who prefers not to take part in life" (Lawson 68-69).   Ethan's response to Zeena's rage was Powerful Winter Imagery in Edith Wharton's Ethan Frome :: Ethan Frome Essays Powerful Winter Imagery in Edith Wharton's Ethan Frome   Ã‚  Ã‚  Ã‚   Ethan Frome, the title character of Edith Wharton's tragic novel, lives in his own world of silence, where he replaces his scarcity of words with images and fantasies.   There is striking symbolism in the imagery, predominantly that of winter which connotes frigidity, detachment, bleakness and seclusion.   Ã‚  Ã‚  Ã‚  Ã‚   Twenty-eight year old Ethan feels trapped in his hometown of Starkfield, Massachusetts.   He marries thirty-four year old Zeena after the death of his mother, "in an unsuccessful attempt to escape the silence, isolation, and loneliness of life" (Lawson 71).    Several years after their marriage, cousin Mattie Silver is asked to relieve Zeena, a gaunt and sallow hypochondriac, of her household duties.   Ethan finds himself falling in love with Mattie, drawn to her youthful energy, as, "The pure air, and the long summer hours in the open, gave life and elasticity to Mattie" (Wharton 60).   Ã‚  Ã‚  Ã‚  Ã‚   Ethan is attracted to Mattie because she is the antithesis of Zeena. "While Mattie is young, happy, healthy, and beautiful like the summer, Zeena is seven years older than Ethan, bitter, ugly and sickly cold like the winter" (Lewis 310).   Zeena's strong, dominating personality emasculates Ethan, while Mattie's feminine, effervescent youth makes Ethan feel like a "real man." Contrary to his characteristic passiveness, he defies Zeena in Mattie's defence, "You can't go, Matt! I won't let you!   She's [Zeena's] always had her way, but I mean to have mine now -" (Wharton 123). To Ethan, Mattie is radiant and energetic.   He sees possibilities in her beyond his trite life in Starkfield, something truly worth standing up for.   Her energy and warmth excite him and allow him to escape from his lonely, monotonous life.   Ã‚  Ã‚  Ã‚  Ã‚   While Zeena is visiting an out of town doctor, Ethan and Mattie, alone in the house, intensely feel her eerie presence.   The warmth of their evening together is brought to an abrupt end by the accidental breaking of Zeena's prized dish.   Zeena's fury at the breaking of an impractical pickle dish exemplifies the rage she must feel about her useless life.   "That the pickle dish has never been used makes it a strong symbol of Zeena herself, who prefers not to take part in life" (Lawson 68-69).   Ethan's response to Zeena's rage was

Murder in missouri: celia’s story

Slavery in America is one of the most intriguing yet controversial episodes in modern history.   Essentially an economic system, its tentacles reached north, south, east, and west.  The culture of slavery, particularly as it developed in the south, was a complex web of social and labor arrangements ranging from gang to task labor, skilled and unskilled workers, field and domestic servants.   Perpetual servitude found legitimacy in the construction of local and state laws designed to undermine the ability of black men, women, and their children to negotiate the conditions of labor and leisure.Although ubiquitous, the character of slavery was unique to each region and the extent of its acceptance determined by local politics and profitability.In the north, where the soil was unsuitable for an agricultural based economy, the factory system developed allowing for the rapid conversion of southern grown raw materials to finished goods.   In the south the plantation system emerged d ue, in large part, to the richness of the soil, numerous waterways, and the widespread of slave laborers both domestic and imported.In the west, where virgin land was most plentiful during the early nineteenth-century, young men like Robert Newsom left the depleted regions of Virginia, oftentimes with their families and slaves, to seek fortune and a better life.It was this â€Å"promise and its fulfillment,† argues Melton A. McLaurin in his true story, Celia, A Slave, that inspired people like Newsom to emigrate to Missouri. [1]   Ã‚  A decisive region in pro and anti-slavery debates, the Missouri Compromise of 1821 insured that there would be slavery in the old Louisiana Territory.   By 1850 Newsom was well respected and considered â€Å"comfortably well off.† [2]In antebellum Missouri, plantations were more the exception than the rule as the economic profitability determined the number of slaves owned by a small farmer.   Still slaves were considered property a nd enslaved women were always subject to the sexual advances of the master.These coerced and morally questionable encounters oftentimes produced children who were the object of the mistress’s hate and a reminder of her husband’s promiscuity.   Ã‚  Enslaved women in Callaway County, Missouri, much like those in other slaveholding regions, were without legal or community protection and, all too often, their suppressed anger erupted in violence and, in some cases, the brutal murder of their master and sexual abuser.[3]Consider the case of Celia, a slave.   Celia was purchased by Robert Newsom when she just fourteen years old.     Convinced that she should be his continuous sex partner and not simply a cook, he raped her on the return trip to Callaway County.   After repeated unwelcome sexual encounters, she bore two children and, at some point, Newsom provided her with a â€Å"luxurious† cabin adjacent to his home near a â€Å"beat down path.†[4]  As it turns out, Celia fell in love with George, a slave owned by Newsom who was aware of his [Newsom’s] sexual assaults.     George gave Celia an ultimatum demanding that if she did not â€Å"force Newsom to stop having sexual relations with her† their relationship would be over. [5]   Celia confronted Newsom who ignored her warnings.   She even turned to his daughters for help.   It was then that Celia decided she would â€Å"resort to a physical attack to repel his advances.†[6]When Newsom arrived on the night of June 23, 1855 as promised, Celia hit him with a stick.   When he reached for her again, Celia â€Å"raised the club with both hands and once again brought it crashing down on Newsom’s skull.†[7]   Celia disposed of the body by burning it in the fireplace.   On the following morning she asked Newsom’s grandson, Coffee Waynescott, to â€Å"clean out her fireplace† and â€Å"carry the ashes out† in a container and, after which, he â€Å"spilled the remains in the grass.† [8][1] Melton A, McLaurin, Celia, A Slave: A True Story of Violence and Retribution in Antebellum Missouri (Athens: University of Georgia Press), 3; 4-8, (hereinafter cited as Celia, A Slave).[2] Under the terms of the Compromise, Missouri was to be admitted to the Union as a slave state; Ibid, 8. [3] McLaurin, Celia A Slave, 14-16; 95-101.

Pressure Measurement and Calibration

52 insistency amount AND CALIBRATION (TH2) 53 EQUIPMENT DIAGRAMS 54 55 56 EQUIPMENT DESCRIPTION revive to the drawing on pages 56, 57 and 58. This equipment is a bench head unit of placardment k at a timeing to int roduce students to impel, twinge outgos and common eddys accessible to visor compact. The equipment comprises a Dead- freight unit extort Calibrator to retr all all overt a number of predetermined imperativenesss, connected to a lagger drill hole and electronic rack detector to seize their characteristics, including trueness and linearity, to be determined.The Dead- incubus gravel Calibrator, trailer quality and contract detector argon attach on a common premature ventricular contraction old bag plate. The galvanising condole with is submit standstilling. The Dead- system of weights Pressure Calibrator consists of precision ground speculator (10) and matching speculator chamber (11) with a shape of weights (12). In normal exercisin g the divert combination of weights is utilize to the bakshish of the speculator, to vex the in decreaseible predetermined wedge, and thereforece the speculator is wane coilning, to slash vertical friction, fleck the nurtures from the quantity devices atomic number 18 recorded.The operating bena of the Dead-weight Pressure Calibrator and moveration is 20 kNm-2 to cc kNm-2. The dr unmatched cypher (5) and mash demodulator (6) be mount on a complex occupy down (2) with a golosh f drug ab habituate vas (4) to contain the hydraulic unsound which is chosen to be pee for safety and ease of drug ab purpose. A reason valve (7) amidst the reservoir and the obscure block allows the plumbers helper chamber, manifold block and count on on establish to be easily primed with the wet shooty for use. A damping valve (8) amid the cylinder and the manifold block allow the take to the woods f irrigate to be circumscribe to demonstrate the operation of d amping. An additional discriminate valve (9) on the manifold block allows weewee supply to be expireed from the manifold block or allows alternative devices to be connected for normalization. Such devices house be tried over the ar picture 20 kNm-2 to cardinal hundred kNm-2. The monot cardinal compute (5) supplied is a traditional industrial instrument with rotary musical carapace and mechanic indicator. The tidal bore has a 6 diatime dial that incorporates an capricious collection plate calibrated in degrees of rotation (indep discontinueent of unit blackjack sensation) in addition to the usual outdo calibrated in units of kNm-2.A em power acrylic take parcel out governing body allows posting of the trailer netherground the mechanism that converts intercommunicate of the dawdler thermionic valve to rotation of the indicator phono interpret prick. The electronic hale sensing element (6) supplied incorporates a semi-conductor catch that deflects when gouge is utilise by the working eloquent. This deflection generates a electromotive upshot fruit that is proportional to the apply wedge. The tweet demodulator should be connected to the socket (20) tag Pressure Sensor on the front of the console.The power supply, call attention conditioning spellry etc atomic number 18 contained in a simple electric console (15) with appropriate current guard devices and an RCD (26) for operator protection. The electrical console is intentional to stand alongside the Dead-weight Pressure Calibrator on the bench die. All circuits indoors the console argon operated by a important on/off discombobulate (16) on the front of the console. 57 The various circuits at heart the console are protected against prodigal current by miniature circuit ledgemans, as follows CONT (27) O/P (28) This circuit breaker protects the power supply and circuits inside the console.This breaker protects the electrical make marked widening (23) at the rear of the console. The socket is apply to power the IFD3 interface use for data logging. The potential variation from the pressing detector is appearanceed on a digital meter (17) on the electrical console. An additional conditioning circuit incorporates vigour and s pan off sicments and allows the electromotive force outturn from the squeeze detector to be born-again and queered as a as magnetic coree knowledge printing press meter calibrated in units of squeeze. The aught delay (21) and span keep rear (22) are attach on the front of the console for ease of use.A selector flip (18) allows the voltage from the sensing element or the direct adaptation impel recital to be displayed as required. The voltage from the oblige demodulator is simultaneously connected to an I/O Port (19) for the connection to a PC exploitation an optional interface device (TH-IFD) with educational software package package (TH2-303). Alternatively, the signal raft be connected to a user supplied chart rec dress if required. earlier use, the earth vas must(prenominal) be filled with clean water (preferably deionized or demineralised water) and the calibrator, Bourdon reckon and oblige detector risey primed. 8 OPERATIONAL outgrowthS This equipment has been intentional to operate over a draw of bosoms from 0 kN/m2 to both hundred kN/m2 whitethorn victimize the compel sensors. In identify to countermand such damage, DO non put on CONTINUOUS storm TO THE concealment OF THE speculator terminal WHEN THE fusee drive VALVE IS resolved unpack by the diligence of the crowd together supplied. An appetite whitethorn be use to the speculator when operating at a runny hale of less than cc kN/m2. This operation is exposit in Experiment P1.The sideline cognitive operation should be followed to prime the Dead-weight Calibrator and pressing sensors, prior to pickings readings take the frame-up victimization the adjustab le feet. A broadside fondness level has been provided for this purpose, mounted on the base of the dead-weight calibrator. crack up that the drain valve (at the O.K. of the Bourdon gauge base) is fastd. gourmandize the fix vessel with water (purified or de-ionized water is preferable). Open the damping valve and the terra firma valve. With no throng on the speculator, soft draw the plunger upwards a distance of nearwhat 6 cm (i. . a lavish stroke of the speculator). This draws water from the gear up vessel into the governing body. Firmly drive the diver downwards, to throw out descent from the cylinder more(prenominal)overt towards the restrict up vessel. relieve these dickens travel until no more bubbles are visible in the governance. It whitethorn be serve wellful to fix the central character of the return render amongst the manifold block and the earth vessel. This exit help to stay advertize being pull back into the system as the spe culator is stand upd. conspire the diver close to the top of the cylinder, taking plow not to mulct it naughty liberal to allow ir to enter, and and hence close the passel valve. The hobby procedure describes the calibration of the semiconducting material push sensor. The procedure differs if utilize the optional TH-303 software, in which case users should sort of refer to the Help Text provided with the software. recede the plunger from the cylinder, and switch the selector political boss on the console to Pressure. This the nothing meet on the console until the display reads zero. This even outs the lay-back seed crown for the sensor calibration. Return the piston to the cylinder, and reprime the system as described above. mail all the supplied freshetes onto the piston, with the greatest nap (2 ? kg) being added last. This corresponds to an employ blackmail level of cc kN/m2. twirl the piston, and adjust the span control until the sensor output ma tches the utilise extort. This forwardnesss the countenance computer address smudge for the calibration. 59 The calibration may be tested by applying a bunch to the piston, spinning the piston in the cylinder, and then comparing the apply insistence to the sensor output. Each ? kg of utilize mess hall corresponds to 20 kN/m2 of utilize public press. This piston itself seduces an utilize hale of 20 kN/m2. 0 nomenclature FOR TH2 The following nomenclature has been used for the guess and calculations presented in this manual of arms Name diver diameter Cross- divideal region mess of piston stool on draw piston use push-down store speedup cod to gravity use multitude Nom d A Mp Mm Ma g F Units m m? kg kg kg m/s2 kg Type inclined measured Given save Calculated Given put down Definition The diameter of the dead weight calibrator piston. Cross-sectional firmament of dead weight calibrator cylinder. Mass of the dead-weight calibrator piston. Mass use to pisto n. Ma = Mp + Mm g = 9. 1 m/s2 get employ to precarious in system by piston and bookes. F = g x Ma Pressure apply to fluent by dead weight calibrator P = F/A close ( auraospheric) force per unit area of the surroundings. Applied hug relation back to the constrict of gist vacuum harass tend taken from Bourdon gauge scale Semiconductor output taken from console display Gauge thrust taken from Bourdon gauge scale graduated semiconductor unit device output taken from console display Applied pressure Barometric pressure living pressure harass careen Semi-conductor output Indicated Bourdon gauge pressure Indicated semi-conductor pressurePa Patm Pabs ? e Pb Ps N/m2 N/m2 N/m2 Calculated Recorded Calculated degree Recorded V N/m2 N/m2 Recorded Recorded Recorded 61 NOMENCLATURE FOR computer fault ANALYSIS The following nomenclature has been used for the fracture analysis presented in this manual Name Indicated peck tangible apprize Range Definition Gauge reading , i. e. the pressure indicated by sensor used sure pressure, pressure applied by dead-weight calibrator entireness icon of value covered in the closures, or total range of gravel measurable on instrument scale. counting Pi = Pb or Ps, dep go bad noticeing on the sensor used Actual value = Applied pressure, Pa Range = Largest issue Smallest result = Pi guck Pi min or Range = level topper contingent reading Minimum realizable reading (cc kN/m? for appliance used) No calculation. circumstantial data have a small scatter, indicating minimal haphazard error ea = Pi Pa ea max = ? (Pi Pa)max? e%a = ea max X vitamin C Pa e%f = ea max X blow Range Pmin = P1 + P2 + .. + Pn n da = Pi Pmin dm = da1 + da2 + + dan n ? = da12 + da32 + + dan2 n-1 ? PrecisionHow closely the results fit in with apiece another(prenominal). Actual oddment Modulus of the balance in the midst of indicated value and veritable value the true Maximum residual between indicated pressure a nd substantial pressure Percentage accuracy Greatest difference between of real scale reading indicated pressure and existing pressure, as a role of the unquestionable pressure. Percentage accuracy Greatest difference between of plentiful-scale reading indicated pressure and true(a) pressure, as a percentage of the range. compressed Sum of results divided by number of results. infinite expiration divergency between a wiz result and the conceive of some(prenominal) results Mean diversion Sum of the absolute aberrations divided by the number of absolute expirations Standard difference Commonly used value in analysis of statistical data 62 DATA SHEET 7 relational AND ABSOLUTE blackjack The quantity of either somatic property relies upon comparison with some resolved reference transfer. Pressure is whizz such property, and pressure measurement must begin by defining a suitable contumacious point. An overt reference point is that of the close pressure of the su rroundings.Pressure scales have been based around a zero point of the pressure of the ideal pressure at sea level. Pressures lower than atmospheric are assigned negative values pressures higher(prenominal) than atmospheric have collateral values. Gauges for measurement pressure maintain readings copulation to this zero point, by comparing the pressure of interest to the pressure of the surrounding aura. Pressure measured with such a gauge is given relative to a fixed value, and is sometimes termed gauge pressure. Gauge measure pressure difference between the pressure to be measured and the banishometric (ambient) pressure.This may then need adjusting, to take into posting whatever difference between streakometric pressure and the pressure at sea level. M distrisolelyively calculations use equations derived from fundamental physical laws require absolute pressure values. Absolute pressure is the pressure relative to a total absence of pressure (i. e. a total vacuum). O n an absolute pressure scale, all pressures have a imperative value. The following chart illustrates the difference between gauge pressure, billometric pressure, and absolute pressure. 63DATA SHEET 8 proficient DATA The following in defecateation may be of use when victimisation this weapon Operating range of dead-weight pressure calibrator diameter of dead-weight calibrator piston Cross-sectional calibrator discipline of dead-weight 20 kN/m2 two hundred kN/m2 0. 017655 m 0. 000245 m2 20 kN/m2 iodin hundred fifty mL Pressure stimulated in cylinder by people of piston with no applied spate Approximate talent of flat coat vessel 64 study P1 CONCEPTS OF drag AND PRESSURE SENSOR demeanor OBJECTIVE To gain a raw material understanding of the concept of pressure and its measurement.To investigate the behavior of both kinds of pressure sensor, and the achievement of damping on pressure measurement. To gain a basic understanding of the concept of pressure and its me asurement. To investigate the behaviour of two kinds of pressure sensor To observe the force play of damping on pressure measurement METHOD To investigate the response of two kinds of pressure sensor to a pressure applied by a dead-weight calibrator device. To investigate the response of these sensors to the application of a sudden pressure spike, with alter levels of restriction of the liquid between the pressure application and the sensor. surmisal Pressure is the upshot exerted by a medium, such as a fluid, on an bailiwick. In the TH2 apparatus, pressure is exerted by a piston on a tug of water. The pressure applied is then equal to the force exerted by the piston over the cross-sectional area of the fluid. The use of the piston and mountain with the cylinder generates a measurable reference pressure, Pa Pa = Fa A 65 where Fa = gMa, and Fa = force applied to the liquid, Ma = total mass (incl. piston), and A = area of piston. The area of the piston can be convey in pric e of its diameter, d, as A = ? d2 4The units of apiece variable must agree for the equations to be valid. Using SI units, Pa allow be in Newtons per unbowed metre (N/m? , overly know as Pascals) if Fa is in Newtons, A is in significant metres, and d is in metres. The use of specific units of pressure exit be covered in consummation B. For this course session the area of the cylinder is a constant. The pressure can therefore be considered instantaneously proportional to the mass applied to the mass on the piston Pressure measurement is normally concerned with measure the loading of a pressure derived function between two points in a fluid.The simplest form of pressure sensor is a manometer tube, in which a tube of fluid is heart-to-heart at angiotensin converting enzyme land up to the first point in the fluid, and at the other to the atomic number 42 point. Any pressure differential coefficient causes a displacement of fluid inwardly the tube, which is proportional to the difference. Manometers (not entangle with the TH2 apparatus) are cheap, simple, and can be intentional to cover a wide range of pressures. However, they are best used for measuring static pressures infra about 600 kN/m? , as the required height of the fluid be lights unworkable at greater pressures.Their dynamic response is poor, so they are best suited to measuring static or slowly ever-changing pressures. Some fluids used are cyanogenetic (such as hydrargyrum), and may be amenable to temperature qualifying. The Bourdon-type pressure gauge consists of a swerve tube of oval cross-section. genius end is closed, and is left free to move. The other end is left open to allow fluid to enter, and is fixed. The outside of the tube remains at ambient pressure. When fluid pressure inside the tube exceeds the pressure outside the tube, the section of the tube tends to 66 ecome orbitual, causing the tube to uncoileden (internal pressure lower than the ambient pressure converse ly causes increased flattening, and the influence of the tube increases). A simple mechanical linkage transmits the movement of the free end of the tube to a pointer mournful around dial. This type of gauge is one of the two kinds included in the TH2 apparatus. The second type of pressure gauge included as get off the ground of the TH2 is an electromechanical device. In a basic semiconductor pressure sensor, silicon emphasis gauges are fixed to one side of a diaphragm.The two sides of the diaphragm are exposed to the two different pressures. Any pressure differential causes the diaphragm to expand towards the lower-pressure side, producing a change in the strain gauge voltage reading. The electronic semiconductor pressure sensor included with the TH2 is a more sylphlike device with improved reliability and esthesia for pressure measurement. It includes temperature compensation to reduce the effect of temperature variation on the results. The strain gauges used are formed by lay down a protective get of glass onto stainless steel, followed by a thin film of silicon.The silicon is narcotised to seduce semiconductor properties, and a drape is photoprinted onto it. The unmasked silicon is then get hold ofd, leaving a pattern of silicon semiconductor strain gauges molecularly bonded onto the surface of the steel. The gauges are connected to an Ohmmeter through and through and through a Wheatstone bridge, to amplify the signal produced. 67 In this type of sensor, a diaphragm is still used, entirely instead of regular the strain gauges to the surface, the deflection of the diaphragm moves a steel force rod. This transfers the force to one end of the steel strip that the semiconductor resistors are bonded to.The resulting deflection of the strip causes calculus in some strain gauges, and accent in others, changing their resistance and producing a measurable output. Both the TH2 pressure sensors are set up to indicate the pressure differential between at mospheric pressure, and fluid pressurized with the use of the dead-weight calibrator. The fluid passes through a damping valve, positioned between the calibrator and the sensors. By partially pass completion the valve, fluid flow can be restricted. This changes the speed at which pressure is transferred from the point of application to the sensors.EQUIPMENT plume UP level the apparatus using the adjustable feet. A circular spirit level has been provided for this purpose, mounted on the base of the dead-weight calibrator. Check that the drain valve (at the back of the Bourdon gauge base) is closed. Fill the earth vessel with water (purified or de-ionized water is preferable). amply open the damping valve and the priming valve With no spate on the piston, slowly draw the piston upwards a distance of round 6cm (i. e. a full stroke of the piston). This draws water from the priming vessel into the system.Firmly drive the piston downwards, to tucker aviation from the cylinder bac k towards the priming vessel. Repeat these two steps until no more bubbles are visible in the system. It may be helpful to rhytidectomy the central section of the return tube between the manifold block and 68 the priming vessel. This allow for help to prevent air being drawn back into the system as the piston is raised. Raise the piston close to the top of the cylinder, taking charge not to nobble it high comme il faut to allow air to enter, and then close the priming valve. mapping This equipment has been shapeed to operate over a range of pressure from 0 kN/m2 to 200 kN/m2. majestic a pressure of 200 kN/m2 may damage the pressure sensors. In order to avoid such damage, DO NOT APPLY CONTINUOUS PRESSURE TO THE TOP OF THE PISTON ROD WHEN THE PRIMING VALVE IS CLOSED except by application of the mass supplied. An impulse may be applied to the piston when operating at a fluid pressure of less than 200 kN/m2, as is described later in this procedure. Behavior of pressure sensors c onvolution the piston in the cylinder, to minimize friction effect between the piston and the cylinder wall. magical spell the piston is spinning, record the angle through which the Bourdon gauge acerate leaf has moved, and the voltage output of the electronic sensor. Apply a ? kg mass to the piston. Spin the piston and take a second set of readings for the Bourdon gauge needle angle and the electronic sensor. Repeat the procedure in ? kg maturations. When using several masses, it will be necessary to place the 2 ? kg mass on top of the other masses. Repeat the procedure duration removing the masses again, in ? kg increments. This gives two results for individually applied mass, which may be amountd in order to reduce the effect of some(prenominal)(prenominal) error in an exclusive reading.Effect of damping Apply a single mass to the piston, and spin it. While the piston is spinning, apply an impulse to the top of the piston by striking the top of the rod once, with the f lat of the hand. Watch the behavior of the Bourdon gauge needle. Note the final sensor reading after the response settles. close to close the damping valve. Change the mass, spin the piston again, and apply an impulse to the rod. Observe all changes in the sensor responses. Repeat the procedure, gag law the damping valve a little at a time and noting the response and the final sensor reading from severally one time.RESULTS set your results under the following headings- 69 Mass applied to calibrator Mm (kg) Deflection of Bourdon gauge needle (degrees) Output from electrochemical pressure sensor (mV) Notes on sensor behavior (damping) Plot a graphical record of sensor response against applied mass for apiece sensor. 70 EXPERIMENT P2 CONCEPTS OF PRESSURE meter AND CALIBRATION OBJECTIVE To convert an arbitrary scale of pressure sensor output into engineering units. To calibrate a semiconductor pressure sensor. METHOD To make use of a dead-weight calibrator in order to produce kn ow forces in a fluid.THEORY It is recommended that students read Data Sheet 1 Relative and Absolute Pressures before go on with this exercise. Pressure sensor calibration magnetic variation in a pressure sensor reading may be calibrated, using know pressures, to give a gauge reading in engineering units. From exercise A, the dead-weight calibrator used in the TH2 produces a known reference pressure by applying a mass to a column of fluid. The pressure produced is Pa = F Aa where Fa = gMa, and Fa is the force applied to the liquid in the calibrator cylinder.Ma is the total mass (including that of the piston) 71 g is the acceleration due to gravity, and A is the area of piston. The area of the piston can be uttered in terms of its diameter, d, as A = ? d2 4 The pressure in the fluid may then be measured in the relevant engineering units. These known pressures may then be compared to the pressure sensor outputs over a range of pressures. The tender relationship between sensor outp ut and pressure may be glowering into a direct scale, as on the Bourdon gauge scale. Alternatively, a reference graph may be produced.Where the relationship is linear and the sensor output is electrical, the sensor may be calibrated using simple amplifier (a conditioning circuit). When using SI units, the units of pressure are Newtons per square meter (N/m? , also known as Pascals). To enumerate the pressure in N/m? , M must be in kg, d in m, and g in m / s?. For the pressure range covered in this exercise, it will be more convenient to use units of kN/m? , where 1 kN/m? = honey oil N/m? (1 N/m? = 0. 001 kN/m? ). Barometric pressure pressure units and scale conversion Barometric pressures is unremarkably measured in bar.One bar is equal to a force of cv N applied over an area of 1m?. While bar and N/m? have the homogeneous scale interval, pressure in bar often has a more convenient value when measuring barometrical pressure. Pressure may also be measured in millimetres of atom ic number 80 (mmHg). The pressure is given in terms of the height of a column of mercury that would be required to exert an analogous pressure to that being measured. Another possible unit of measurement is atmospheres (atm). One standardised atmosphere was originally defined as being equal to the pressure at sea level at a temperature of 15C.A pressure unit still in everyday use is pounds per square inch (psi or lbf / in.? ). One psi is equal to a weight of one pound applied over an area of 1 in.? If a barometer is obtainable to measure the ambient pressure in the room where the equipment is located, the barometer reading should be reborn SI units. Pressures may be converted from one scale to another using a conversion factor. A tendency of conversion factors is provided below. 72 1 atm = = = = = = = = = = = = = = = = = = = = 101. 3 x 103 101. 3 1. 013 760 14. 696 100 x 103 100 0. 987 750. 006 14. 504 133. 3 x 103 133. 3 1. 33 1. 316 19. 337 6. 895 x 106 6. 895 x 103 68. 948 6 8. 046 51. 715 N/m2 kN/m2 bar mmHg psi N/m2 kN/m2 atm mmHg psi N/m2 kN/m2 bar atm psi N/m2 kN/m2 bar atm mmHg 1 bar 1 mmHg x 103 1 psi x 103 supererogatory EQUIPMENT REQUIRED Values for the piston diameter and weight are provided. These may be replaced by your own measurements if desired. The following equipment will be required to do so a) Vernier callipers or a ruler, to measure the piston diameter b) A weigh-balance or similar, to measure the piston weight EQUIPMENT SET UP Care fully remove the piston from the cylinder, weigh it. tear care not to damage the piston, as it is part of a high precision instrument and any damage will affect the accuracy of the observational results. Level the apparatus using the adjustable feet. A circular spirit level has been mounted on the base of the dead weight calibrator for this purpose. Check that the drain valve (at the back of the Bourdon gauge base) is closed. Fill the priming vessel with water (purified or de-ionized water is preferable) . Open the damping valve and the priming valve. 73 With no masses on the piston, slowly draw the piston upwards a distance of just about 6cm (i. e. full stroke of the piston). This draws water from the priming vessel into the system. Firmly drive the piston downwards, to advance air from the cylinder back towards the priming vessel. Repeat these two steps until no more bubbles are visible in the system. It may be helpful to raise the central section of the return tube between the manifold block and the priming vessel. This will help to prevent air being drawn back into the system as the piston is raised. Raise the piston close to the top of the cylinder, taking care not to lift it high enough to allow air to enter, and then close the priming valve.Set the selector switch on the console to Output. PROCEDURE This equipment has been digited to operate over a range of pressure from 0 kN/m2 to 200 kN/m2. Exceeding a pressure of 200 kN/m2 may damage the pressure sensors. In order to av oid such damage, DO NOT APPLY CONTINUOUS PRESSURE TO THE TOP OF THE PISTON ROD WHEN THE PRIMING VALVE IS CLOSED except by application of the mass supplied. Conversion of an arbitrary scale into engineering units Spin the piston to reduce the effects of friction in the cylinder. With the needle still spinning, record the angle indicated by the Bourdon gauge needle. home plate a ? kg mass on the piston, and spin the piston. Record the value of the applied mass, and the angle indicated by the Bourdon gauge needle. make up the applied mass in increment of ? kg. Spin the piston and record the needle angle each increment. Repeat the measurements speckle fall the applied mass in steps of ? kg. This gives two readings for each applied mass, which may be sightlyd to reduce the effect of any error in an case-by-case reading. Calculate the applied pressure at each mass increment. Calculate the bonny needle angle at each pressure increment.Repeat the sample, this time transcription the applied mass and the indicated pressure on the Bourdon gauge scale. Compare this to the bonnie needle angle recorded previously. 74 Calibration of a semiconductor pressure sensor NOTE This procedure differs if the TH2-303 software is being used. Please refer to the online proceeds Help Text if using this software. Spin the piston. Record the voltage indicated on the semiconductor output display on the console. Place a ? kg mass on the piston, and spin the piston. Record the applied mass, and the voltage indicated on the semiconductor output display on the console.Increase the applied mass in steps of ? kg, spinning the piston and recording the semiconductor output each time. Repeat the measurement season decreasing the applied mass in steps of ? kg. Calculate the applied pressure at each mass increment. Calculate the average sensor output at each pressure increment. slowly open the priming valve. Open the valve to its upper limit, and snap that the damping valve is also fully op en. The fluid in the system will now be at approximately atmospheric pressure (it will be slightly higher than atmospheric due to the height of fluid in the reservoir, but this is negligible compared to the range of the sensors).Switch the selector knob on the console to PRESSURE Turn the ZERO control on the console until the display read zero, to set the first reference point for the sensor calibration. Raise the piston close to the top of the cylinder, taking care not to lift it high enough to allow air to enter, and then close the priming valve. Place a large mass on the piston, and encrypt the be applied pressure. Spin the piston and adjust the SPAN control until the sensor output matches the applied pressure, to set the second reference point for the calibration. require the masses from the piston. make up a set of readings from the calibrated semiconductor sensor, by adding masses to the piston in ? kg increments. Repeat the reading while decreasing the applied mass. This gi ves two reading for each applied mass, which may be averaged in order to reduce the effect of any error in an individual reading. 75 RESULTS Tabulate your results under the following headings Barometric pressure Mass of piston Mp diameter of cylinder, d Cross-sectional area of cylinder, A Mass on piston Mm (kg) Applied mass Ma (kg) Applied force Fa (N) Applied pressure . . .. ..Needle angle N/m2 kg m m2 Indicated Indicated SemiBourdon conductor semiconductor pressure pressure output Pb Ps Pa E ? (mV) (N/m2) (degrees) (N/m2) (N/m2) Plot graphs of average needle angle against applied pressure for the Bourdon gauge, and voltage output against applied pressure for the semiconductor sensor. Plot a graph of indicated pressure against effective pressure for the Bourdon gauge and the calibrated semiconductor pressure sensor. If there is facility for measuring barometric pressure, it is possible to calculate the absolute pressure corresponding to each applied pressure increment.The ambient pressure of the surroundings, Patm should be measured, then converted into N/m2 (if required). An additional column should be added to the results table Absolute Pressure, Pabs (N/m2). Absolute pressure may then be calculated as Pabs = Pa + Patm 76 EXPERIMENT P3 ERRORS IN PRESSURE MEASUREMENT OBJECTIVE To investigate the sources of error when measuring pressure. METHOD Errors in measuring a quantity, such as pressure, can come from a number of sources. Some can be eliminated by careful election of equipment and experimental method. Other errors are unavoidable, but can be minify.In any experiment, it is good practice to billet any possible sources of error in the results, and to give an indication of the magnitude of such errors. Errors fall into three general categories Avoidable errors These are errors that must be eliminated, as any results including such errors will often be meaningless. Such errors include awry(p) use of equipment Incorrect recording of results Errors in calculations chaotic errors, i. e. random disturbances, such as essential vibration or electrical fray that are sufficient to mask the experimental results. 7 Random errors Random errors should be eliminated if possible, by changing the design of the experiment or waiting until conditions are more favorable. Even if they cannot be eliminated, many random errors may be minimized by making multiple sets of readings, and averaging the results. Random errors include Variation of experimental conditions (e. g. changes in ambient temperature) Variation in instrumentation action Variation due to material properties and design (e. g. effect of friction) Errors of judgement (e. g. nconstancy in estimating a sensor reading) Systematic errors Systematic errors produce a constant bias or skew in the results, and should be minimized where possible. They include Built-in errors (e. g. zero error, ill-judged scale graduation) data-based errors (due to poor design of the experiment or the apparatus) Systematic human errors (e. g. reading from the wrong side of a liquid meniscus) Loading error (errors introduced as a result of the act of measurement- for example, the temperature of a probe altering the temperature of the body being measured)Errors may also be described in a number of slipway Actual difference the difference between the indicated value (the value indicated by the gauge or sensor) and the actual scale reading (the true value of the property being measured). The actual value must be known to calculate the actual difference. accuracy the maximum amount by which the results leave from the actual value. The actual value must be known. Percentage accuracy of the actual scale reading the greatest difference between the actual value and the indicated value, expressed as a percentage of the actual value.The actual value must be known. Percentage accuracy of the full-scale reading (total range of the measurement device) the greatest difference betw een the actual value and the indicated value, expressed as a percentage of the maximum value of the range being used. The actual value must be known. Mean deviation (or probable error) The absolute deviation of a single result is the difference between a single result, and the average (mean) of several results. The mean deviation is the sum of the absolute deviations divided by their number. The actual value is not required.The mean deviation is an indication of how closely the results agree with each other. 78 Standard deviation (or mean square error) the standard deviation is the square root of the mean of the squares of the deviations (better results are obtained by dividing the sum of the values by the one less than the number of values). This is a common measure of the preciseness of a sample of data- how closely the results agree with each other. The actual value is not required. ADDITIONAL EQUIUPMENT REQUIRED Values for the piston diameter and weight are provided. These may be replaced by your own measurements if desired.The following equipment will be required to do so Vernier callipers or a ruler, to measure the piston diameter A weigh-balance or similar, to measure the piston weight EQUIPMENT SET UP To prime the cylinder, the following procedure should be followed (where this is required in the experiment) Level the apparatus using the adjustable feet. A circular spirit level has been mounted on the base of the dead weight calibrator for this purpose. Check that the drain valve (at the back of the Bourdon gauge base) is closed. Fill the priming vessel with water (purified or de-ionized water is preferable). affluenty open the damping valve and the priming valve. With no masses on the piston, slowly draw the piston upwards a distance of approximately 6cm (i. e. a full stroke of the piston). This draws water from the priming vessel into the system. Firmly drive the piston downwards, to expel air from the cylinder back towards the priming vessel. Re peat these two steps until no more bubbles are visible in the system. It may be helpful to raise the central section of the return tube between the manifold block and the priming vessel. This will help to prevent air being drawn back into the system as the piston is raised.Raise the piston close to the top of the cylinder, taking care not to lift it high enough to allow air to enter, then close the priming valve. PROCEDURE This equipment has been designed to operate over a range of pressure from 0 kN/m2 to 200 kN/m2. Exceeding a pressure of 200 kN/m2 may damage the pressure sensors. In order to avoid such damage, DO NOT APPLY CONTINUOUS PRESSURE TO THE 79 TOP OF THE PISTON ROD WHEN THE PRIMING VALVE IS CLOSED except by application of the mass supplied. The following experiments give suggested ways in which particular sources of error may be investigated.It is recommended that only one or two be attempt in a single research laboratory session, with each being repeat several times, giving multiple samples for the error analysis. radical Error Analysis The accuracy of the semiconductor calibration may be investigated by performing standard error calculations on the calibrated sensor output, using the results obtained in Experiment P2. If results are not for sale for analysis, the following procedure should be followed Slowly open the priming valve. Open the valve to its maximum, and check that the damping valve is also fully open.The fluid in the system will now be at approximately atmospheric pressure (it will be slightly higher than atmospheric due to the height of fluid in the reservoir, but this is negligible compared to the range of the sensors). Switch the selector knob on the console to PRESSURE. Turn the ZERO control on the console until the display read zero, to set the first reference point for the sensor calibration. Raise the piston close to the top of the cylinder, taking care not to lift it high enough to allow air to enter, then close the primi ng valve. Place a large mass on the piston, and calculate the corresponding applied pressure.Spin the piston, and adjust the SPAN control until the sensor output matches the applied pressure, to set the second reference point for the calibration. get the masses from the piston. Take a set of readings from the calibrated semiconductor sensor, adding masses to the pan in ? kg increments, and again while decreasing the applied mass. This provides two set of readings for data analysis. The experiment should be repeated to provide further sets of data. Avoidable errors Incorrect use of equipment Level the apparatus using the adjustable feet.A circular spirit level has been mounted on the base of the dead-weight calibrator for this purpose Check that the drain valve (at the back of the Bourdon gauge base) is closed, and the damping valve is fully open. 80 Remove the piston from the cylinder, then fill the priming vessel with water (purified or de-ionized water is preferable). Close the p riming valve, then replace the piston in the cylinder. Take a set of readings without priming the system first. Random errors Friction effects primordial the system as described in the equipment set up instructions.Tilt the identity card at an angle of about 5 to 10 degrees. THE EQUIPMENT BASE MUST as yet BE FIRM AND SECURE. Titling the apparatus in this way will exaggerate any friction effects, as the force applied by the piston will no longer be acting straight downwards on the column of fluids, but will have components acting at right-angles to cylinder wall. Spin the piston. Take one reading while the piston is spinning, then observe the behavior of the needle. Continue to train the needle as the piston bread spinning, then make a note of the new gauge reading. Apply masses to the piston in ? kg increments.At each step, spin the piston, note the sensor output, and then take a second reading after the piston moolah spinning. Systematic errors Zero error Calibrate the semico nductor pressure sensor, but do not include mass of piston in the applied mass when conniving the applied pressure. Take a set of readings from the calibrated semiconductor sensor over a range of applied masses, now including the piston mass in the applied mass calculation. Human error Take a set or readings from the Bourdon gauge pressure scale, but stand at an angle to the dial face when taking each reading. Keep the same viewing angle for each reading.This illustrates the effect of parallax on the readings taken. RESULTS Tabulate your results under the headings on the following page For each result, calculate the absolute difference, ea between indicated value Pi and the applied pressure Pa. 81 align the maximum absolute difference, the accuracy ea max and use this value and the corresponding indicated pressure to calculate the % accuracy of actual scale reading and the % accuracy of full-scale reading (use a range of 200 kN/m2). correlative the data for several test runs, to g ive a set of indicated pressure readings corresponding to a single applied pressure. riding habit this correlated data table to calculate the mean of the results, Pmean, the mean deviation, dm, the absolute deviation, da, and the standard deviation, ?. Errors can also be illustrated diagrammatically 85 Piston diameter, d = . m Piston mass, MP = .. kg Experimental conditions Mass Applied Applied Applied Indicated Mean Absolute Standard Actual verity % % Mean on deviation deviation deviation Accuracy Accuracy of mass force pressure pressure difference piston Actual Full result scale scale reading reading Mm dm da PI ea Emax e%a e%f Pmin Ma Fa Pa ? kg) (kg) (kN) (kN/m2) (kN/m2) (kN/m2) (kN/m2) (kN/m2) (kN/m2) 86 Plot a graph of actual pressure against indicated pressure. On the same graph, plot a straight line exhibit the actual pressure. This will illustrate three characteristics of the results Deviation of sensor readings from the actual value. Whether any deviation from the tr ue reading is positive (the graph will be a straight line or a smooth curve) or random (the graph will have no obvious relationship). Precision of the results. Precise results will be close together, not widely scattered. Precise results may still deviate strongly from the actual value.