Elements, Mixtures and Compounds Essay Example | Topics and Well Written Essays - 1000 words

Elements, Mixtures and Compounds - Essay Example For example, a mixture of iron and sulfur can be taken in any proportion while a compound such as iron (II) sulfide always has a ratio of 7 : 4 by mass of iron and sulfur (Leong & Aik, 2009). When a mixture is prepared by mixing two or more substances, there is no chemical exchange involved and there is absence of heat or light production. When a compound is prepared, it is usually accompanied with a chemical change in which some heat, light or both are liberated. For example, when a mixture is prepared by mixing iron filings and sulfur, no heat is liberated. However, when hot iron filings and sulfur are taken together in a test tube, a chemical reaction occurs resulting in the formation of iron sulfide (Fe + S ?FeS). The test tube glows red because of heat produced during the reaction (Leong & Aik, 2009). The properties of a mixture are characteristic of the individual substances mixed. On the contrary, the properties of a compound are very different from those of the original eleme nts. For example, in a mixture of iron filings and sulfur, properties such as magnetism, color, texture of the individual substances are retained. Iron sulfide, a compound, has very different properties from those of iron and sulfur. It lacks magnetic activity and also has different physical and chemical properties (Leong & Aik, 2009). ... 2) Supposed that you have a pure substance, how can you tell whether it is a compound or an element?   An element cannot be further broken down chemically, while a compound can be broken down into individual components or elements using chemical reactions specific for that compound. For example, heating mercuric oxide, which is a compound, over a Bunsen flame, will result in the decomposition and separation of mercuric oxide into mercury and oxygen. However, mercury and oxygen, which are elements, cannot be further broken down using any chemical means (Leong & Aik, 2009). Therefore, in order to tell whether a given pure compound is an element or a compound, it will be subjected to various separation procedures to determine if it can be broken down further. Its melting and boiling points and other physical and chemical properties will also be noted and compared with those of preexisting elements and compounds for ease of identification. 3) What is the difference between an ionic and a covalent bond? Chemical bonds such as ionic and covalent bonds determine the properties of a compound. The main differences between the two kinds of bonds are discussed as follows: Ionic bond is formed when electrons are transferred from one atom to another. The transfer of electrons results in the formation of a positive and a negative ion that are held together by strong electrostatic attraction. For example, salt (NaCl) is formed when an electron from sodium (Na) is transferred to chlorine (Cl) to form ions (Na+ and Cl- ) that are held together to form salt (NaCl). Covalent bond is formed when an electron pair from the outer shell is shared between two atoms. For instance, Hydrochloric acid

Language diversity and global media Research Proposal

Language diversity and global media - Research Proposal Example However, a major concern facing advertisers now is the possibility that historical criticisms directed at limited or stereotypical advertising content involving minorities (Westerman, 1989; Wilson and Guitierrez, 1995) may have created a negative atmosphere for these consumers to receive current multicultural marketing communication efforts. Similarly, as in-language media continues to grow, some have come to question the usefulness of general market English language media channels to reach consumers from ethnic minority groups (NCM.com, 2005). Although extensive research since the 1960s has generally acknowledged improvements in the portrayals of minorities in advertising, scholars and practitioners alike still suggest a need for more frequent and more positive portrayals, along with a broader range of roles and a greater degree of accuracy in the portrayals (Taylor and Bang, 1997). Some have suggested that ethnic media--that is, culturally relevant and/or in-language media--may be a better means for successfully reaching and representing ethnic minority consumers than general market English language media (Kalita, 2005; NCM.com, 2005; Yin, 2002) With increasing improvements of minority portrayals in general media and the development of ethnic media, one area that has been largely overlooked in the literature has been how ethnic minorities actually feel about portrayals of themselves in advertising (Green, 1999; Grier and Brumbaugh, 1999; Holland and Gentry, 1999). Attitudes such as these help form the media environment that in turn determines advertising message effectiveness. A meaningful research agenda relevant to today's media landscape should therefore be to find out (1) if ethnic minorities desire more representation and/or more accurate representation in the media and (2) if the historical criticisms have created a generally negative attitude among ethnic minority consumers and thus a difficult media environment within which a rejection of "mainstream" English language media outlets may exist. To address these issues, African and Latin Americans were selected as the focus of a study as they represent the largest ethn ic minority populations in the United States, and these groups have been receiving a significant amount of attention from marketers (Minority Markets Alert IX, 1997). Size, Growth Rates, And Purchasing Power Today, there are just over 281 million Americans in the United States and nearly one in four claims to have non-European ethnicities (U.S. Census Bureau, 2002). In some of the nation's largest cities (e.g., New York City, Los Angeles, Washington, D.C., Atlanta) more than half of the residents are nonwhites, and in some cases up to 70 percent of a large city's population consists of minorities. This demographic shift is predicted to continue with non-European ethnicities expected to exceed 50 percent of the U.S. population by the middle of this century (U.S. Census Bureau, 2002). Therefore, to ensure effective marketing communication, it is necessary that marketers understand all aspects of the various ethnic minority groups, ranging from their size and spending power to media use patterns and beliefs regarding marketing efforts. According to the

An Annotated Bibliography Essay Example | Topics and Well Written Essays - 1500 words

An Annotated Bibliography - Essay Example â€Å"Multilingual Identities in Higher Education: Negotiating the ‘Mother Tongue’, ‘Posh’ and ‘Slang’†, Journal of Language and Education, Vol. 24., no. 1,pp. 21-39. Preece’s articles analyses linguistic diversity amid minority ethnic undergraduates students classified as from broadening participation background in a new University in Britain. The author recognizes that students negotiate multilingual and bidilectal identities within the framework of an academic writing programme considered as offering English language remediation. Leung, C., Harris, R. and Rampton, B. 1997. â€Å"Multilingualism in England,† Annual Review of Applied Linguistics, no. 7, pp. 224-241. The authors point out about the recent reactions to multilingualism in the national education systems and point to the increasing tension between education policy and research. The authors then suggest that there is so much that has happened in the study and und erstanding of multilingualism in England. To analyze this, the authors focus on the dynamic and contested connections amid educational policy, academic debate and daily sociolinguistic practice. As multilingualism in growing in the United Kingdom as a result of immigration, urban areas are becoming more diverse in their utilization of language. This is resulting in local government regulations being imposed to provide for those who do not speak the prevailing language. These policies are targeted at ensuring diversify and acceptance amid the scope of languages and speakers in any given region. School curriculums are making it possible for students to learn each other’s languages and so make sure good communication between distinct cultures. It is at times presumed that English is sufficient, but in global terms just 60 percent of the population are native speakers and 75 percent speak no English at all. Research on the internet reveals a decline in the relative influence of E nglish online, from 51 percent of traffic in 2000 to 27 percent as of 2011. The United Kingdom requires a multilingual population in order to succeed in a globalised universe, for global citizenships, for diplomacy, security and in global relations and for creating a taskforce to operate proficiently in trade and investment. In spite of the numerous interest groups affected by multilingualism and development of new ways to quantify the linguistic topography in the UK’s exhaustive information on UK multilingualism has only presently surfaced. The in particular emerges from conflicting definitions of language capability and situational usage, with non-standardized measures utilized to explain these (Edwards, 2004). The engagement of the state with the subject of multilingualism functions at numerous levels. The United Kingdom has not general official regulation on multilingualism, even though the EU supports trilingualism. Public discussions about multilingualism are London tra nsforms often, though there is some persistency in promoting specific forms of bilingualism, specifically through formal learning. There is prejudice in the conceived positions of distinct languages. Bilingualism appears to be regarded as an asset if it is learned as opposed to the acquired language prestige. On the other hand, bilingualism is conceived as an inadequate if possessed in a migrant home. There are discussions over if and how the past

Vanley Burk and the authentic Birmingham experience Essay

Vanley Burk and the authentic Birmingham experience - Essay Example Burke has been the part of the community which was struggling for better living conditions, better education and better life. On the basis of Norman Fairclough’s frame work the work of Burke has been analysed and explained. Vanely Burke on the other hand developed his skills and sensitivity towards authentic photography to present human life and emotions. He emphasised more on the human aspects of images than the material aspects. His presentations indicates that the authentic presentations of photography does not require an individual to belong to the particular community rather it requires the sensitivity in the presentations towards the subject matter. The paper is based on the qualitative analysis of Vanley Burk and the authentic Birmingham experience on the basis of Norman Fairclough’s work. The interview of Vanley Burke has been utilised as a source of analysis. The African and Caribbean community have come to Britain due to various reasons. Some have been brought as slaves while others have been invited to fill the gap of demand and supply of labour class. This community had come for better perspective of life. These communities have their own cultural identity and social structures where they had norms, values and social relations. The identity they had in their native country and the identity they have been receiving in Britain was different. The British media had presented the negative images of this community. This led to build up negative perceptions among the mass about these people. The identity of any section of society can build up or tarnished on the way they are presented by media. The language, images, conte xt and the timings of the appearance of particular news or information is crucial in the image building process. Apart from that lack of knowledge about the culture and the living of one community can be the other factor of believing in what is

Senior Management of Bobcat County Hospital Essay

Senior Management of Bobcat County Hospital - Essay Example rgical and medical services, and supporting laboratories, workforce and equipment that make up the surgical and medical mission of the hospital or various systems in the hospital. Health and safety of hospital employees should be considered by the authority along with their services. Furthermore, better working conditions should be provided so that employees can work efficiently and qualitatively. Assignment 1 Introduction Bobcat IDS is a not-for-profit business establishment that is comprised of 120 bed acute care hospital, 15 bed rehab service, a 25 bed expert nursing facility, an agency of home healthcare and an outpatient clinic. Bobcat county hospital plays a chief role in the Patient hospital centre. The study talks about the medicare, rehab etc of the Bobcat county hospital and the various steps to improve the financial performance of the hospital. â€Å"Rehabilitation hospitals are specialty hospitals that offer intensive inpatient rehabilitation therapy† (Medicare Int eractive, n.d.). e transmission between an Bobcat county hospital was founded to meet a perceived requirement for services, which were less expensive on a per diem basis than common hospitals but which offered a higher level of specialized therapies for example occupational therapy, speech therapy, and physical therapy than can be acquired in a "skilled nursing" care facility (Medicare Interactive, n.d.). Products: Bobcat county hospital products are mainly in the form of service that include surgical and medical services as well as the supporting laboratories, workforce and equipment that make up the surgical and medical mission of a hospital or various systems in the hospital. Hospital products make up the core of various offerings of the hospitals. They are frequently shaped by the requirements... Bobcat IDS is a not-for-profit business establishment that is comprised of 120 bed acute care hospital, 15 bed rehab service, a 25 bed expert nursing facility, an agency of home healthcare and an outpatient clinic. Bobcat county hospital plays a chief role in the Patient hospital centre. The study talks about the medicare, rehab etc of the Bobcat county hospital and the various steps to improve the financial performance of the hospital. â€Å"Rehabilitation hospitals are specialty hospitals that offer intensive inpatient rehabilitation therapy†. Transmission between an Bobcat county hospital was founded to meet a perceived requirement for services, which were less expensive on a per diem basis than common hospitals but which offered a higher level of specialized therapies for example occupational therapy, speech therapy, and physical therapy than can be acquired in a "skilled nursing" care facility.Bobcat county hospital products are mainly in the form of service that include surgical and medical services as well as the supporting laboratories, workforce and equipment that make up the surgical and medical mission of a hospital or various systems in the hospital. Hospital products make up the core of various offerings of the hospitals. They are frequently shaped by the requirements or wishes of its main users to build the hospital a one-stop or core establishment of its local society or medical network. The target market of the Bobcat county hospital is the middle income level people of the community. The main competitors of the products offered by the Bobcat county hospital is the Bobcat community hospital. Like any other hospital, Bobcat county hospital is also a type of institution consisting of basic workforce and services normally various department of surgery and medicine that manage clinical and other categories of services for the particular conditions and diseases. â€Å"Hospitals provide pharmacy services that supply patients with medications a s prescribed. In addition to providing inpatients with medicine, many hospital pharmacies can fill prescriptions for patients as they leave†.

Foster Care for Children Speech or Presentation

Foster Care for Children - Speech or Presentation Example A5.Independent former foster youth between the ages 18 and 21 are eligible to receive certain medical benefits to which they are legally entitled and desperately need. Research has shown that independent former foster youth have acute health care needs. I strongly feel that given these health care needs, it is appropriate that under current law, these youth are eligible for Medi-Cal by virtue of their status as former foster youth. Despite their eligibility, however, these former foster youth are required to fill out Medi-Cal eligibility forms as a prerequisite to getting the health care services to which they are entitled. It does not make moral or fiscal sense for the state to spend scarce dollars and staff hours making these former foster youth fill out Medi-Cal paperwork since they cannot, by law, be refused eligibility. As a result of this current practice, these foster youth risk losing their medical care when they incorrectly fill out their forms, forms are sent to the wrong a ddresses, or where there are other paperwork delays. A6. According to the California Blue Ribbon Commission on Children in Foster Care, courts are responsible for the safety and well-being of children who have been removed from their homes as a result of abuse or neglect. In 2007, there were nearly 80,000 children in foster care, more than 75 percent of whom entered placement as a result of neglect. Half of the children entering foster care in California are age five or under. Domestic violence, substance abuse, and mental illness are factors that contribute to the removal of children from their homes. Q7. What is the cultural background of the majority of the children under foster care What percentage of the children in the State belongs to this category A.7. African-American children constitute seven percent of the state's child population but are more than 30 percent of the children in foster care. Native American children are 0.84 percent of the state's child population but represent 1.41 percent of the children in foster care. Youth who "age out" of foster care often leave the system ill-prepared to live as adults, and face a significantly increased risk of unemployment, homelessness, mental illness, and involvement with the criminal justice system. Q8. Why would the former foster children have special medical needs A 8. While the children are moved out of their own homes to avoid exposure to unpleasant conditions, there is

Flexibility Essay Example | Topics and Well Written Essays - 3000 words

Flexibility - Essay Example It works in interrelation with different operational and transactional factors like workforce, technological capital, organizational systems and the concern as a whole. Flexibility allowed in the labor force earns due efficiency if it helps to augment the degree of commitment of organizational workforce. (Procter & Ackroyd, 2009, p. 495). Three main themes would be outlined in the paper, which can be given as follows. The concept of flexibility to be successful must be closely tied to high degree of organizational commitment. Present level of increased competition triggers the need of a flexible workforce who would rightly adapt to changes in level of demand and operational process. The function of flexibility earns success if the employees work together in a committed manner to achieve organizational goals (Guest, 1989.p.49). Moreover, flexibility of the labor force tends to identify the Human Resources Management as a strategic initiative, which helps the company to earn a distinct competitive advantage. Human Resource Management as a strategic function encompasses the different policies and end goals behind the proper management of the labor force. The strategic face of human resource management is likely needed in bigger firms with several departments and also in other multinational firms for maintaining a strong binding in the labor force. (Boxar, Peter & Purcell, 2003. p.50) In key connection to the concept of human resources management is the process of recruitment and selection of the right candidate to help achieve the organizational goals. Thus recruitment and selection procedures and methods must be devised keeping in mind the end goals. The modern day organization desires to bring in a lot of flexibility in their organizational procedure and management of human resources in the organization. Modern day companies observe that through a flexible workforce the company can achieve high levels of profit and