Atomic Structure essays

Atomic Structure essays The nucleus has more than 100 protons and more than 150 neutons, the nucleus is a very small part of an atom. Both the atom and the necleus can be thought of as spheres. Then both volumes of the atom can be compared with the volume of the nucleus alone, because the volume of a sphere is proportional to the cube of its radius. The space outside the nucleus is occupied only by electrons. The observation has led to the empty space concept of matter. Ernest Rutherford , a British physicist, performed an experiment that strongly suggested that the positive charge of an atom located in a very small nucleus. Rutherforth's experiment made use of polonium, a radioactive element that gives of positvely charged particles. These particles are called alpha particles. A steam of these particles was allowed to strike a thin sheet gold or copper. Behind the metal foil was a fluorescent screen. This diagram showes what Ernest Ruthefold and his colleges observed. Most of the alpha particles passed through the metal foil with very little interference. Each time one of the alpha particles hit the flourescent screen, a flash of light was given off.Few particles did not pass though the foil. Rutherford found that a very few alpha particles was deflected by more than 90Â °. Because of these experiments , he made a nuclear model of the atom, which described the atom with its nucleus, and an atoms lack of energy charge. An atom is electrically neutal because it has negatively charged particles,or electrons,that balance the positive charge of the nucleus. The electrons are present in the empty space surrounding the nucleus. The atomis number is the number of positive charges in the nucleus of an atom. Each proton carries one positve charge. The atomic number represents the number of protons in the nucleus of an atom. The atomic number never changes. The mass of an element is given units called atomic mass uni ...

Free Essays on Miracle Or Mirage

Miracle or Mirage Could the Miracle of Helena really be the Mirage of Helena? A prominent editor for the New York Times has hailed the original article as The Miracle of Helena, while urging readers to give the article way more credit than it deservers. According to an article written by Steven Milloy, on Friday October 17, 2003; (The known publisher of Junk Science.Com and known scholar and published author) The Second Hand Smoke Scam. Milloy claims there is not enough factual evidence to support the theory that the ban on smoking in Helena was associated with the drop in heart attack patient admissions at the local hospital. In 2002 the citizens of Helena opted to ban smoking in all public buildings. After a six-month period the ban was rescinded. During the six-month period doctors at a local hospital reported that heart attack patient admissions had dropped. Then after the ban was rescinded the admissions of heart attack patients rebounded to the pre-ban levels. Milloy states there was simply no study to account for heart attack rates dropping due to the smoking ban. Since there had been a similar drop four years prior in 1998. This drop was unrelated to a smoking ban. This study was not easy to evaluate because there was no study. The results were a slide show presentation at the annual meeting of the American College of Cardiology and six months later no study has been released to the public. So how did the editor at the New York Times get his facts? Given the fact there were no medical test done on any of the heart attack patients admitted prior to, during, or after the smoking ban it would be impossible to determine whether or not the attacks were caused by second hand smoke, genetics, life style, or environmental factors. Therefore to say that the drop in heart attack patients during the ban was due to second hand smoke would be outrageous. This seems to be more of a mirage of Helena than a miracle of Helena. Dr. Stan ... Free Essays on Miracle Or Mirage Free Essays on Miracle Or Mirage Miracle or Mirage Could the Miracle of Helena really be the Mirage of Helena? A prominent editor for the New York Times has hailed the original article as The Miracle of Helena, while urging readers to give the article way more credit than it deservers. According to an article written by Steven Milloy, on Friday October 17, 2003; (The known publisher of Junk Science.Com and known scholar and published author) The Second Hand Smoke Scam. Milloy claims there is not enough factual evidence to support the theory that the ban on smoking in Helena was associated with the drop in heart attack patient admissions at the local hospital. In 2002 the citizens of Helena opted to ban smoking in all public buildings. After a six-month period the ban was rescinded. During the six-month period doctors at a local hospital reported that heart attack patient admissions had dropped. Then after the ban was rescinded the admissions of heart attack patients rebounded to the pre-ban levels. Milloy states there was simply no study to account for heart attack rates dropping due to the smoking ban. Since there had been a similar drop four years prior in 1998. This drop was unrelated to a smoking ban. This study was not easy to evaluate because there was no study. The results were a slide show presentation at the annual meeting of the American College of Cardiology and six months later no study has been released to the public. So how did the editor at the New York Times get his facts? Given the fact there were no medical test done on any of the heart attack patients admitted prior to, during, or after the smoking ban it would be impossible to determine whether or not the attacks were caused by second hand smoke, genetics, life style, or environmental factors. Therefore to say that the drop in heart attack patients during the ban was due to second hand smoke would be outrageous. This seems to be more of a mirage of Helena than a miracle of Helena. Dr. Stan ...

Six Months plan for Turkish and Armenian Students Essay

Six Months plan for Turkish and Armenian Students - Essay Example The evaluation time for the steps that I will introduce to the university will be six months (Saxena, 2009). Step One: I will advise the two student organizations to concentrate on their activities and not to meddle in each othersactivity as their two different organizations representing students with different interest and coming from different background. I will ensure that the two organizations exist in cohesion and that the different speakers appointed by each organization respect the identity, religion and culture of the organizations present within the University (Lederach, 1999). Step Two: I will advise the two student organizations within the university to know their purpose within the institution and that they share a common interest which is education and not ethnicity or religion. I will make them to understand that no organization is superior to the other and that the resources available within the institution are meant for their use, therefore they should strive to avoid rivalry due to the use of resources or space within the university(Lederach, 1999). Step Three: I will advise the two student organizations to have positive thoughts about each other and ignore their religious interest since the Turks are Muslims and Armenians are Christians. They put human rights values into action and treat each other like a brother for cohesion and peace to exist within the university. ... I will recommend and interfaith dialogue to be used by the Turkish and Armenian student organization within the university. Step One: I will involve both the student organization in an interfaith dialogue to help them realize that in both religions, God is the source of peace and justice. This will bring them to an understanding that they should exercise the concept of peace as both their religion advocates for the existence of peace and they will be able to coexist peacefully with one another while conducting their different activities for the students they represent. Step Two: Interfaith dialogue will be inspiring to the students’ organizations as they will realize that their teachings and traditions are a source of inspiration to all. By communicating, they will learn that it is of great significance to work together for the purpose of peace and justice as times have changed and their living in world that upholds peace with esteem. Step Three: the interfaith will enlighten the two students’ organization to know that it is only God who forgives and both Muslims and Christians were called by God to offer forgiveness. The students’ organizations will immensely benefit by learning the importance of forgiveness as they will forgive each other for their past differences and effect justice in throughout their studies and stay within the university (Smock, 2002). Step Four: The two students’ organization will learn through interfaith dialogue that despite disagreeing on certain points in the doctrines, they should only offer their critics to one another when they feel that either of the organizations has violated the integrity of God. This will work towards helping them to respect

) What is fundamentally different AND the same about fiction, poetry, Essay

) What is fundamentally different AND the same about fiction, poetry, and drama, as three genres - Essay Example sually written to be acted out by people in front of an audience and thus must include a number of dialogues as well as the setting for each conversation that takes place during the course of the plot. Writing fiction, as compared to writing poetry or drama may be considered easier because fiction involves the writer to simply flood their thoughts across the pages while creating characters and a plot. The similarities among the three genres however include having a plot around which the story centres, may it be a piece of fiction, poetry or a theatrical drama. All three may also centre on specific characters and are narrated to the audience. They contain various metaphors and images as these are not restricted to poetry itself, taking the example of Shakespeare’s dramas and absolutely any fiction writer’s stories. That is what makes them an exciting read at the end and separates as well as connects the three genres

To Identify the Main Challenges Facing Human Resources Managers in Research Proposal

To Identify the Main Challenges Facing Human Resources Managers in Non-Profit Organizations - Research Proposal Example The research aims at identifying the major challenges the human resource managers face in dealing with their employees. Some of the specific objectives are; to find out the number of workers in each organization, their remuneration and the number of personnel in human resource departments, to find out the academic qualifications of the workers and to establish the kind of management tool used in the organization. A sample size of 150 employees will be used which acquire from fifteen organizations. Random sampling method is used to get the sample size that is free of biasness. An online questionnaire will be used which will be hosted on www.qualtrics.com and www.surveymonkey.com as well as send to the participants as email attachments. The results will be analyzed using Statistical Package for Social Scientists (SPSS). Introduction Background information Human resources consist of individuals in an organization whose mandate focuses on employees’ activities and their welfare. The law requires that all organizations whether governmental or non-governmental must have a human resources department to take care of the needs of the employees who are the workforce of the organization. Improper handling of employees results to poor performance of the organization especially if the organization or company is after profit maximization as research indicates that the about 80 percent of the organizational functions are contributed by the human feature of resource. A human resources department constitutes professionals and experts in the field of human resource. It is the main role of the human resource department to recruit and manage the employees. It is essential that the team conducts a proper evaluation of the abilities and competencies of the applicants to the positions advertised as this greatly influences the operations of the orga nization. The team is tasked to apply several measurements so that they can select the best candidates. Psychometric assessment helps a recruiting team to pick applicants with the required attitude to conform to the organization’s values and principles. Interviews are necessary which written tests, phone interviews or one-on-one interviews aimed at evaluating the ability of the candidates to make informed decisions if presented with such situations while they undertake their duties. Kiessling and Harvey (2005, p.28) explain that the human resource team has a role to play in reviewing employee reimbursement packages which include salaries, allowances, awards, bonuses, vacations and promotions. Recognizing the work of the employees boosts their morale hence increasing their determination to deliver their duties and responsibilities to their best. Planning is another role which the human resource department is responsible in. developing organizational calendar days is their work . They develop the strategic plan which guides the organization for a given period of time. Outsourcing of resources and information, partnership and market is also the responsibility of human resources. Policies, rules and regulations within the organization are developed by the human resource department. Non-profits organization, due to its unique way of operating, it is faced with challenges for example failure to pick the best candidates for a given job position may impact negatively of the performance of the organizati

Mental Health And Community Care Social Work Essay

Mental Health And Community Care Social Work Essay In this report I will discuss Mental health and community care, I will look at the historical context of community care taking into consideration policies and that stemmed it and competing ideological perspectives that that has impacted on it. I will further look at its benefits and shortfalls since its implementation taking into accounts the impact of the 1990 NHS Community Care Act and current reforms. Finally I will discuss the process of poverty and social exclusion which affects some of these people who have been discharged home as a result. History of Community Care and Objectives Dobson (1998) stated that Care in the community represented the major political change in mental healthcare in the history of the National Health Service (NHS) It was the result both of social changes and political expediency and a movement away from the isolation of the mentally ill in old Victorian asylums towards their integration into the community (Goffman 1961). The aim was to normalise the mentally ill and to remove the stigma of a condition that is said to afflict one in four of the British population at some time in their lives. The main push towards community care as we know it today came in the 1950s and 1960s, an era which saw a sea change in attitude towards the treatment of the mentally ill and a rise in the patients rights movement, tied to civil rights campaigns. The 1959 Mental Health Act abolished the distinction between psychiatric and other hospitals and encouraged the development of community care. According to Goffman, (1961) historically, people who were designated as having a mental illness lived in confined institutional environments for years and had limited expectations for returning to the community. Community care is used to describe the various services available to help individuals manage their physical and mental health problems in the community which is the British policy for deinstitutionalisation. Duane (2003) defined deinstitutionalisation as process of replacing long-stay psychiatric hospitals with less isolated community mental health services for those diagnosed with mental disorder or developmental disability. These services include, for example, nursing or social work support, home help, day centres, counselling and supported accommodation. The Department of Health expresses the need to promote the development of a personal health plan of individuals, based on who they are, what they want and what their circumstances are. According to DoH, Health is linked to the way people live their lives and the opportunities available to choose health in the communities where they live. There have been major improvements in health and life expectancy over the last century and on the most basic measures, people are living longer than ever before (DoH report, 2005). Rogers A and Pilgrim D (2001) stated that the ideological commitment to community care was associated with vague idea of achieving an ideal society, prior to it being effected as a practical reality. Similarly Titmuss in the 1960s suggested that the notion of community care invented a sense of warmth and human kindness, essentially personal and comforting Titmuss (1968). This early positive view emphasised the idea of leaving the disabling environment of the institution behind and ushering in the enabling possibilities of ordinary living. According to Bulmer (1989), the first use of community care was in the part of mental health, as understanding developed of the negative consequences of institutionalizing mental patients in hospitals, and to discharge the ex-patients and mental handicap hospitals, and to discharge the ex-patients into the community, where they would live in hostel-type accommodation or in their own homes and be cared for by a mixture of professional and personal carers, particularly in day centres and by nursing staff on the one hand and by members of their own families on the other. Community care in the past has always been a mixed economy, financed by both the state and by user charges and provided by voluntary sector organization, commercial, for-profit organization, the state and the family. Alan Walker (1982, 1989) and Roy Parker (1990) have specifically addressed the problem of defining community care and have pointed out that it has been very easy for one persons community care to be anothers institutional care. Community care has been a mixture of policies. To the health service any provision outside the NHS equals community care, therefore institution run by local authorities constitute community care. The mixed economy of community care during the 1960s left wing academics, notably Peter Townsend (1962), made moving request for the deinstitutionalization of elderly and mentally ill people, whereas Titmuss (1968) has already sounded a note of caution when he referred to the way in which the term community care conjured up a sense of warmth and human kindness. All this assumed the main provider of community care to be the state. In some ways, the idea of community care in mental health ran counter to the dominate trend within the NHS after 1948, which until recently, was centralised and hospital-dominated. Bulmer (1989) similarly emphasised that in recent years community care has broad meaning including the goal of providing comprehensive outreach, day and residential services and support for ordinary facilities within the locality. In principal at least community care now extends to social inclusion and the promotion of assess to facilities used by other people living in the community and the right and responsibility of participation in local community acitivties. According to Pilgrim (2001) when the Labour government came to power in 1997, it announced the need for rapid reform of mental health services based on the impression or evidence that care in the community has failed. In 1998, the Health Secretary, Frank Dobson, stated that discharging people from institutions has brought benefits to some. But it has left many vulnerable patients to try and cope on their own. Others have been left to become a danger to themselves and a nuisance to others. A small but significant minority have become a danger to the public as well as themselves. Mind, along with many others, disagreed with the statement that community care had failed. These were based on concerns about control of risky behaviour which led to the spokes enquiry following the killing of a social worker (Isablel Shwartz) in 1984 by patient Sharon Campbell in Bexley Hospital. These were some of the limitations of care discovered and led to recommendation about post-discharge case management DHSS (1998). The report similarly noted the lack of any requirement on the part of services to identify vulnerable patients or provide individualised care plans, and for agencies with responsibilities for mental health to work together. The inquiry into the care of Christopher Clunis was also another reason why the community care needed a reform. Rogers and Pilgrim (2001) explained that inquiry examined the manner in which services failed to respond adequately to Christopher Clunis, a young black man With a diagnosis of paranoid schizophrenia who stabbed a stranger (Jonathan Zito) at Finsbury Park underground station. This highlighted a number of problems why the Labour government called for the reform of the community care policy because of the inadequate support for in the community with severe mental health problems. In 1999 The Government published the  National Service Framework [NSF] for mental health modern standards and service models for England. The NSF spelled out national standards for mental health services, what they aimed to achieve, how they should be developed and delivered, and how performance would be measured in every part of the country.(DoH Community care is the support by informal and formal carers of the elderly, the disabled and the mentally disordered groups in the community who are usually in their own homes rather than in institutions. According to Bulmer(1989)the ideas with which community care came about is due to the mixture of sociological propositions about the nature of modern community life, including personal ties between relative, friends, and neighbours. The Griffiths Report: Community Care: Agenda for Action Margaret Thatcher invited Sir Roy Griffiths to produce a report on the problems of the NHS. This report was influenced by the ideology of managerialism. That is it was influenced by the idea that problems could be solved by management. According to the report, Griffiths firmly believed that many of the problems facing the Welfare State were caused by the lack of strong effective leadership and management. Because of this previous work, which was greatly admired by the Prime Minister, Griffiths was asked to examine the whole system of community care. In 1988 he produced a report or a Green Paper called Community Care: Agenda for Action, also known as The Griffiths Report. Griffiths intended this plan to sort out the mess in no-mans land. That is the grey area between health and social services. This area included the long term or continuing care of dependent groups such as older people, disabled and the mentally ill. Basically he was saying that community care was not working because no one wanted to accept the responsibility for community care. Community Care: Agenda for Action made six key recommendations for action: Minister of State for Community Care to ensure implementation of the policy it required ministerial authority. Local Authorities should have key role in community care. i.e. Social Work / Services departments rather than Health have responsibility for long term and continuing care. Health Boards to have responsibility for primary and acute care. Specific grant from central government to fund development of community care. Specified what Social Service Departments should do: assess care needs of locality, set up mechanisms to assess care needs of individuals, on basis of needs design flexible packages of care to meet these needs Promote the use of the Independent sector: this was to be achieved by social work departments collaborating with and making maximum use of the voluntary and private sector of welfare. Social Services should be responsible for registration and inspection of all residential homes whether run by private organisations or the local authority. The majority of long term care was already being provided by Social Services, but Griffiths idea was to put community nursing staff under the control of local authority rather than Health Boards. This never actually happened. The Griffiths Report on Community Care seemed to back local government whereas, the health board reforms in the same period, actually strengthened central government control. rewor According to the Mind, In 1989 the government published its response to the Griffiths Report in the White Paper Caring for People. It set out a framework for changes to community care, which included a new funding structure for social care. This would mark the beginning of the purchaser/provider split whereby social services departments were encouraged to purchase services provided by the independent sector. The report promoted the development of domiciliary, day care and respite services to enable people to live as independently as possible in their own homes. Other objectives included quality initiatives around assessment of need and case management. Carers needs were addressed by prioritising practical support initiatives for them. The next decade saw a dramatic increase in the number of voluntary and private sector service providers. The impact of the community care reforms The community care reforms outlined in the 1990 Act have been in operation since April 1993 Glennester, (1996).They have been evaluated but no clear conclusions have been reached. A number of authors have been highly critical of the reforms. Hadley and Clough (1996) claim the reforms have created care in chaos (Hadley and Clough 1996) They claim the reforms have been inefficient, unresponsive, offering no choice or equity. Other authors however, are not quite so pessimistic. Means and Smith (1998) claim that the reforms: introduced a system that is no better than the previous more bureaucratic systems of resource allocation were an excellent idea, but received little understanding or commitment from social services as the lead agency in community care the enthusiasm of local authorities was undermined by vested professional interests, or the service legacy of the last forty years health services and social services workers have not worked well together and there have been few multidisciplinary assessments carried out in reality little collaboration took place except at senior management level the reforms have been undermined by chronic underfunding by central government the voluntary sector was the main beneficiary of this attempt to develop a mixed economy of care The Care Programme Approach (CPA ) According to Rogers and Pilgrim (2001) there was a light with the introduction of the Care Programme Approach in 2001. It introduced an attempt to improve and standardise the delivery of community care services. The CPA set out a practice framework for health authorities in England, giving guidance on how they should fulfil their duties as laid out in the National Health Service (NHS) and Community Care Act 1990. The programme contained four key elements namely, Arrangement for assessing the health and social needs of recipients of specialist mental health services, The regular use of care plan that identified which provider was responsible for different aspects of a persons care Key worker who would monitor and co-ordinate care for the individual Regular review and if appropriate changes to the care plan. Through the introduction of the CPA, patients identified at risk have been required to be kept on supervision register (DH, 1995). The idea was that all patients in contact with services would be subject to CPA but that some require greater scrutiny and service input. Pilgrim et al stated that the Labour government inherited this method in 1997 and continued to endorse it as the mainstay of good quality community-based management for people with mental health disorder, despite the concept of community care being problematic by health ministers and controversial cases such as that of Christopher Clunis. Social inclusion Social exclusion occurs when,  marginalised by society, people are not able  play a full and  equal part in their community.  Many people who experience mental distress experience stigma and discrimination, and live in poverty. They may find it hard to find adequate housing or access employment. The net result is that people can become seriously isolated and excluded from social and working life. Following the publication of the Social Exclusion Units (SEU) report into mental health and social exclusion, the National Institute for Mental Health in England (NIMHE) have been charged with implementing the 27 action points listed in the SEU report. NIMHE are working on a number of policy areas including employment, education, social networks, housing and homelessness, direct payments, income and benefits. (DoH 1998)

strenght of relational model :: essays research papers

Introduction The first database systems were based on the network and hierarchical models. A database can be defined as a collection of non-redundant data which can be shared by different application systems. A database implies separation of physical storage from use of the data by an application program to achieve program/data independence. Using a database system, the user or programmer or application specialist need not know the details of how the data are stored and such details are usually "transparent" to the user. . These are covered briefly in appendices in the text. The relational model was first proposed by E.F. Codd in 1970 and the first such systems were developed in 1970s. The relational model is now the dominant model for commercial data processing applications. The relational model can be used in both conceptual and logical database design. The basic structure in the model is a table .Tables consists of rows and columns. Relationships in the relational model are represented implicitly through common attributes between different relations. The relational model consist of a relational structure, a set of integrity rules, and data manipulation operations. The relational structure is based on the representation of data in the form of tables. A table contains rows and columns, with each row representing an individual record, and each column representing a field for each record. Tables are related via indirect indexes of primary and foreign keys. The operations that are performed on these tables in order to store, manipulate and access this data include union, intersection, join, division, restriction, projection, assignment, difference, and product. How do you know if the relational model best fits your intended application? An application that requires on-line transaction processing (OLTP) where multiple files are updated simultaneously could benefit from the table structure of the relational model. The relational model provides the ability to quickly insert data into tables. However, when it comes to querying--getting data out of the database--the relational model can be slower because it doesn’t support direct access in multiple joins that are possible with the network model. An RDBMS-based application requires the traversal of indexes to get at related data in other files and this requires additional disk accesses and CPU cycles. The more tables involved and the greater the volume of records in these tables the more time is spent in accessing disk storage to get a result set. But while the relational model has the power to meet heavy-duty OLTP needs--get data into the database--it is also an excellent choice for simpl e databases and for an inexperienced database designer.