English Language problems experienced by overseas students in Australia Essay

International education is of major significance to Australia. The number of oversees students enrolled in Australian higher education institutions rose from 24,998 to 210,397 between 1990 and 2003. Most of the students come from countries where English is learnt as a foreign language. It is noted that in Australia, education is the third largest export service after tourism and transport, therefore, international student are highly valued since they are a source of revenue and improvement on their experience in education is significant in the promotion of positive reputation for Australian institutions. These students need to adjust rapidly and learn English language fast in order to cope both socially and academically. Aims of study The paper aims at investigating the English learning difficulties experienced by oversees students studying in an English language setting in Australia. It also aims at achieving better learning strategies whereby the findings of the study will assist administrators and educators to adopt better strategies for solving the English language learning difficulties of international students in Australia. In summary the paper discusses the findings of previous studies regarding language problems of oversees students. It is concerned with the study about the formation of second language competence and students’ English language experiences after they enter Australia with its principle aim of collecting information that would help the institutions have better plans in meeting the needs and expectations of oversees English students (East, 2001, p. 80). Literature review It is probably no coincidence that at the same time that business and education have become more globalised, and the number of oversees students studying in English language countries have increased, research on the problems and difficulties facing the oversees students has also become intensive and extensive in Australia and elsewhere ( Ballard, 2002, p. 79). Recent studies conducted in Australia identify problems of international students in coping with English, that is, both conversational and academic English. The difficulties are associated with the four macro skills, which are, writing, speaking, listening and reading with clear evidence made by the students themselves whereby Students and staff emphasize that language is a considerable source of difficulties in learning and teaching (Krause, 2001, p. 150). Lack of confidence with English is manifested by the students. They claim not to have clear understanding of their lecturers’ spoken English and are ashamed of their oral performances in the presence of Australian classmates. Research done by Hellsten (2002) found out that inadequate feeling in spoken English hindered many international students from classroom participation. Language proficiency is regarded by students as the one of the main concerns affecting academic performance. In a research conducted by Burns (1991, p. 66), it indicated that more than 50% of the oversees students perceived their English language competencies as very poor, with writing skills ranked as the lowest of the four macro skills followed by listening, speaking and reading respectively. The Australian idiomatic and vocabulary expressions, accent and speed of speaking just complicate the process of communication whereby the oversees students who would have learned English prior to arrival; adjusting to the Australian English, results to further language difficulties. Gaps Most of the studies describing the English language problems of oversees students in Australia are effective but they focus on the symptoms rather than the underlying causes and solutions (Ward, 2004, p. 69). Therefore this study is undertaken to address the expectations of the students and language learning needs and support perceptions. The study will identify areas where information for academic teaching staff and students may need to be supplemented or improved to make sure that students study expectations and support are met, thus the project is undertaken to investigate the two research questions which include: – do the oversees students perceive a need to work on their English language skills in order to cope and succeed academically? , and what kind of language support do the oversees students expect to find and utilize in Australian Universities?. Methodology The research employs use of questionnaires which are filled by 50 international students studying English for academic reasons in Australia. The purpose of the study and the extent of student involvement were explained before the questionnaires were distributed. The nature of the study was voluntary and those who needed to participate were required to provide informed consent. Data analysis Once the completed questionnaires were returned, data was coded and analysed using SPSS whereby graphs and tables were generated and correlation examination done. Findings Regarding the perceived importance of improving English language learning skills, ninety six percent of respondents indicated that the opportunity for English language skills was very significant in their decision to study in Australian institutions. The students were motivated to improve English proficiency with ninety nine percent of the respondents indicating English language skills as very significant in the success of their academic studies whereby the skills were 70% very important in achieving marks within the top one –third of the class in their specific courses. The table below shows the four main language skills which are considered to give students problems while learning English language. The students thought that they needed to improve on them in order to get high marks in their course.

Energy output of Bioethanol and Industrial Ethanol Essay

Aim The aim of this investigation is to determine which of the two derivatives of ethanol releases more energy, Bioethanol or Industrial Ethanol. Hypothesis The main compound in both alcohols has the same chemical formulae C2H5OH, and the other compounds are unknown therefore the Energy output cannot be calculated exactly by using standard bond enthalpies. However, as the main compound is known and the same for both ethanol’s the energy output should be very similar. Therefore the difference in energy output only depends on the compounds which are blended to the alcohols. Apparatus – Thermometer – Metal can x2 – Draught shield x4 – Gloves – Safety spectacles – Heat-resistant mat – Insulation card – 100cm3 measuring cylinder x2 – Spirit burner – Clamp stand – Balance – Matches Substances – E100 Bioethanol – Industrial Ethanol – Water Method The idea to do the experiment the way described is due to knowledge from past experiments and the IB textbook. Follow these steps 10 times, five times for each alcohol. Step 1: Measure 50cm3 of alcohol in a measuring cylinder Step 2: Weigh and record the empty spirit burner Step 3: Fill the 50cm3 of alcohol in the spirit burner Step 4: Weigh and record the filled spirit burner Step 5: Measure 100cm3 of Water in a measuring cylinder Step 6: Fill the water into the metal can Step 7: Set up the Apparatus as displayed (1 draught shield in each direction, south, north, west and east, forming a box around the apparatus; assure there are 2cm of space between the bottom of the metal can and the cotton wick) Step 7: Record the initial temperature of water Step 8: Light the cotton wick of the spirit burner Step 9: Record the temperature every 15 seconds until the cotton wick loses its flame Step 10: Weigh the spirit burner with the remaining alcohol to calculate how many grams of alcohol have been used Varables – Temperature: Temperature of Water will be measured before every experiment. The whole experiment takes place at room temperature. – Volume of Water: 100cm3 – Mass of alcohol: 50cm3 filled in spirit burner. The mass will be measured before and after the experiment to figure how much has been used. – Time: record every 15 seconds – Concentration of alcohol: 1M – Surface area of metal can which flame is heating up: same cans will be used and positioned at same place above the cotton wick to keep this constant. – Length of cotton wick: 0.5cm – Distance from cotton wick to bottom of metal can: 2cm Hazard Warnings – Industrial Ethanol: Highly flammable. Therefore wear gloves and safety spectacles – Bioethanol: Highly flammable. Therefore wear gloves and safety spectacles Chemistry HL – Plan of Investigation

Market for foreign exchange Essay Example | Topics and Well Written Essays - 1000 words

Market for foreign exchange - Essay Example This research will begin with the definition of the foreign exchange market as one of the financial markets that is characterized by buyers and sellers of assets called ‘currencies’. It has traditionally performed the role of converting one currency into another. It is consistent with the principles of market economy laid down by Adam Smith, according to which the value or price of a currency is determined by the market forces of demand and supply. The terms ‘pegged’ and ‘float’ are often discussed when dealing with foreign exchange markets and are means of determining the levels of controls on one’s currency. As mentioned above, a currency maybe pegged or valued against a basket of other currencies or maybe left to the market forces of demand of supply in what is known as ‘free float’. In between the two, however, lies an intermediate form, the ‘balanced float’ that is characterized by some government control bu t is largely based on the principles of demand and supply. Taking a more realistic view, the value of a country’s currency is determined by the interplay of several factors including the economic, political, geographic environment. Tourism also positively affects the value of the currency by increasing demand for the country’s currency. For instance, a tourist who visits country A will require country A’s currency to purchase any goods and/or services in that country. Holding everything else constant, this shall result in an increase in demand for that currency, thus, bidding up its price.

HOW TOURISM CAN LEAD TO MIGRATION Essay Example | Topics and Well Written Essays - 5000 words

HOW TOURISM CAN LEAD TO MIGRATION - Essay Example These recent changes in the earlier mentioned aspects are influencing people to travel. It will also help to examine the positive and negative factors playing in the socio-economical environment front of the city due to the issue of migrant workers. The main goal of the study is to find answers for the research questions. It will be achieved mainly by interviewing participants of two different locations London and Poland to learn new theories and ideas about this issue. In addition, researches should be conducted in near future about the global, local and regional policy making including the issues like society expectations, migration issues, rules and regulations as well as locals attitudes toward worldwide travellers. This will certainly help in better understanding of the subject how tourism influences travellers to become a migrant. CONTENTS PAGE 1.  Ã‚  Ã‚  Ã‚  Ã‚  Introduction..................................................................................................p.4 2.  Ã‚  Ã‚  Ã‚  Ã‚  Methodology.................................................................................................p.6 3.  Ã‚  Ã‚  Ã‚  Ã‚  Literature Review 3.1  Ã‚  Ã‚  Ã‚  Ã‚  Tourism................................................................................................p.9 3.2  Ã‚  Ã‚  Ã‚  Ã‚  Tourism and Migration.......................................................................p.10 3.3  Ã‚  Ã‚  Ã‚  Ã‚  Migration.............................................................................................p.11 4.  Ã‚  Ã‚  Ã‚  Ã‚  Results and Analysis 4.1  Ã‚  Ã‚  Ã‚  Ã‚  Migration and European Union...........................................................p.12 4.2  Ã‚  Ã‚  Ã‚  Ã‚  Poland and London case......................................................................p.14 4.3  Ã‚  Ã‚  Ã‚  Ã‚  Labour work.........................................................................................p.17 5.  Ã‚  Ã‚  Ã‚  Ã‚  Discussions an d Conclusions.......................................................................p.19 6.  Ã‚  Ã‚  Ã‚  Ã‚  References ...................................................................................................p.22 7.  Ã‚  Ã‚  Ã‚  Ã‚  Appendices...................................................................................................p.25 INTRODUCTION The world today has become smaller considering the huge improvement in transport that it has witnessed in last 100 years. Travelling from one part to another is less time consuming and less hectic. Again in last two or three decades globalization has spread through the world and that has followed a path of liberalization that has relaxed the boundaries between the countries. This particular phenomenon has fuelled both tourism and migration (here migration stands for immigration). Before moving into further details a brief definition and discussion on both these phenomenon might be felt necessary. As illustrated in literature Tourism, is a form of travelling for recreational, business or relaxation purpose (Chuck, 1997). Considering the phenomenal growth in tourists all over the world it is now considered as a very important social and economic incidence with significant impact

Multimedia Assignment Example | Topics and Well Written Essays - 1500 words

Multimedia - Assignment Example The use of multimedia has become universal and has fully integrated in the field of education. An institution desires to modernize their induction tour with the latest technologies to enhance the experience for the newly inducted students and present a promising image of the college. Multimedia is also used in organizations for various purposes. Different types of technologies shall be discussed in the paper regarding their unique uses for organization. In the end, an effective solution will be proposed for the institution to incorporate technology in the induction tour. Task 1 2. Types of Multimedia used in Organizations 2.1 Promotion and Advertising Modern organizations have numerous platforms on which they can promote the image of their organizations. Most common use of multimedia is seen in the domain of promotion and advertising. The first step in this process is to define the audience that shall be aimed to be targeted with the promotional campaigns. Radio and television are am ong the conventional forms of multimedia used in the field of advertising. Radio tends to be cost effective as compared to TV and print ads. Internet technology has intervened in the lives of individuals to such a great extent that life cannot be perceived without it in the modern world. Organizations use the medium of internet to reach a larger set of audiences. According to Kawamoto; there are over 1 billion internet users worldwide. Advertisements and promotional campaigns are run on social networking sites, search engines and company owned websites. Another good approach to promote the name of the company is to make a profile for the company on Facebook, MySpace and Twitter. Current campaigns and latest promotions can be advertised through these profiles. 2.2 Digital Poster Digital posters are defined as the displays that are electronically updated with respect to the content provided by the organizations. They facilitate fast and convenient updates of information therefore more information can be communicated to the audience than flat posters. They are more eye-catching as they can be incorporated with sound and video to enable a more effective delivery of message to the recipient. 2.3 Virtual Tours A virtual tour is defined as the simulation of any place which is created by the accumulation of numerous videos and snapshots. Virtual tours allow the creator to communicate the floor plan and interiors of any location to a person who might be residing thousands of miles away from that place. This type of multimedia can help any business communicate their services to their customers; this experience gives an opportunity to the customers to evaluate the quality of the service. For example, hotels advertise their rooms, spa locations and dining areas with the aid of virtual tours. Hospitals might use the same medium to communicate their medical facilities to the audiences. Real estate agencies use this type of multimedia to show the interiors, neighbourhood and location of premises. Figure 1: Screenshot of a virtual tour of a hotel (Interactive virtual tours for estate agents, hotels, business, bars and restaurants) 2.4 Education and Training This concept of acquiring education and training by means of multimedia is known as ‘computer based learning’ or ‘computer based teaching’. Businesses have adapted multimedia technologies to provide

The background to the region Assignment Example | Topics and Well Written Essays - 750 words

The background to the region - Assignment Example With an area if 17,840,000square kilometers it is the home of around 385,742,554 people and a proportionately growling economy. South America is further divided into twelve regions for twelve different countries. These countries include Sao Paulo, Bueno Aires, Rio de Janeiro, Bogota, Lima, Santiago, Belo Horizonte, Caracas and Porto Alegre. There is also a wide range of cultural and demographical differences observed in the area because it houses people belonging from all Europe, Asia and Africa. The commonly spoken languages are however Portuguese and Spanish. The diversity in its culture derives it lineage from the differences in population. For example South America is home to the largest African tribes. Close affinities or people from their area if origin brings varied cultural diversity to the area. Different people with different views for renovation and innovation have caused largely spaced changes in the land mass with the most prominent being deforestation and excessive crop plantation. This crop plantation is treated with varied and large amounts of chemicals and may pose threat to the overall conservation of biological environment. Along with causing serious hazardous conditions such as desertification, waster logging and water pollution as the chemicals seeps into underground sources of water or might as well deposit directly into the hubs of oceans and seas. Thereby water pollution and diseases will be inevitable. Many sources of pollution like chemical plants, coal industries, radiations and metallic conductivity. Not only is it a health hazard but also a population hazard. People stay away from places that do not guarantee appropriate life supporting strategies. The paradox of a modern society is drinking raw water from the woods is unsafe but the tap water is safe, the people are either under the impression or forced to believe by ritual that municipal water is safe to drink, that it is clean. More than 70% of people are aware

Answer the question Assignment Example | Topics and Well Written Essays - 1000 words

Answer the question - Assignment Example However, this is a partial fact. Developed countries like UK and USA did not rely heavily on these economic policies and institutions when they were in their developing phase. And they have changed history, re-wrote it according to their own wishes so that they can misguide the developing world and keep putting obstacles in their way to development. Great Britain and USA are the two strongest economies of the world today. They developed their economies by following aggressive protection policies and not by following a free market and liberal approach. In the past, Great Britain has relied on heavy activist policies that were all aimed at promoting its industries. Later Korea and Japan followed the same strategy to develop their industries. But Great Britain, who was at that time, a promoter of free trade policies to less developed countries of that time like Germany and USA was actually using the ‘kicking the ladder’ approach to reach to the top. The protectionist policies used by Great Britain were criticized by the French economists. American economists gave birth to the concept of infant industry. And during the time period spanning the civil war and the second world war, America was the most protected economy of all times. It is also believed that the reason behind the American civil war was actually tariffs rather than slavery. America actually went against the theories and advises proposed by great economists like Adam Smith and Jean Baptiste who laid great emphasis on agriculture. However Americans were smarter. They knew that Britain had achieved a high economic standard by using protectionist policies and if America had to prosper, it had to follow the same procedure that Britain used. The US President Ulysses then stated that after 200 years when USA will start entering into free trade and its products would be made available to the whole world. The examples of

Wildlife Tourism Essay Example | Topics and Well Written Essays - 2500 words

Wildlife Tourism - Essay Example The industry is also a good employer giving almost 9% of total employment for 2011 and is expected to provide 10% of total employment come 2021 (World Travel & Tourism Council 2011). Tourism is indeed a lucrative business and one of its major attractions is the opportunity for people to see and enjoy nature. Aside from the scenery, tourists are enjoined to experience a closer encounter with wildlife. Hence, wildlife tourism has come to fore as one of the most sought after experience of tourists all over the world. It is quite understandable since the progress of man has been counterproductive to animals. About a century ago, the human population is still small estimated at only 25% of the current headcount. As such, there were bigger lands for animals to roam free. The sea is also teeming with marine life. Thus, stories from grandparents would be filled by the fascinating ways on how these creatures lived and such entertainment always took the fancy of many listeners. Today, most of these stories are shown live on television offering both learning and excitement to the viewer. However, although such a technology had been able to bring in wild animals closer to home, the actual experience is naturally absent. Still, it cannot be denied that because of technology, people today are more informed regarding these creatures (Higginbottom 2004). Thus, with increasing fascination fuelled by the images seen on television, people are driven from their comfortable homes to chase the thrill of experiencing the wild. And, with the economic contribution being provided by tourism, business and governments alike have been more than willing to cater to this demand. Wildlife tourism is not as simple as many would conceive it to be. This activity offers more than just bird watching as the activities may depend on whether the tour is dependent or independent of wild life. Thus, an activity is said to be wildlife dependent if the tour is focused on having actual encounter with wild life. Hence, the main reason for the tour is the opportunity for the tourist to be able to have some form of interacting with animals by being able to take pictures or videos, tracking the animals or even through hunting and fishing. On the other hand, wildlife independent tourism does not have the actual animal experience as the focus of the activity. Incidental encounters like unplanned sightings and even just by hearing the wild animals satisfies the tour objective (Sinha 2001). Both involve certain disruption to nature but naturally the wildlife dependent activities provide more disruption especially when people hunt wildlife. However, this should not always have to be the case since wildlife is important for this aspect of tourism. And with the money being brought in by the industry then perhaps there can be ways in which the wildlife tourism can help preserve these animals. Main body The wildlife The animals play a key role in wildlife tourism as they are basically the main at tractions for wildlife dependent tourism. These animals are gaining attention as evidenced by the increasing number of publications that focuses on wildlife. Likewise, these topics are being more and more integrated to tourism and leisure (Lovelock 2008, Newsome et al 2005 and Topelko and Dearden, 2005). These publications generated additional media mileage for wildlife that have helped integrate activities such as hunting to tourism. Basically, animals are either those in the wild, animals working in farms, pets, animals used as companions and animals that provide assistance. These creatures each have they

Types of Lifestyles Adopted by Families in the United States Essay Example for Free

Types of Lifestyles Adopted by Families in the United States Essay In the United States the most common type of family structure adopted is the Nuclear family which consists of a father, mother and kids. It is structured around the concept of a single family unit based on the concept that it is able to independently support itself. The number of children is not fixed but when the family is unable to cater to the needs of its members and more members are involved in managing a home’s finances it becomes an extended family. Yet, the extended family structure was never that prevalent in the United States at any period in time. In recent years a gradual shift has been observed in the family structures and the lifestyles practiced in them. The structure has changed due to numerous factors such as the acceptance of single parenting by the society, more open approach to adoptions and government permission of homosexuals to marry and begin families. Also the number of kids play a crucial role in determining the family structure as there are many households which just have a couple who have no desire for having kids (AEM, 2005). A rising trend is the Single parent household, with one parent, either the mother or the father, taking full responsibility of the kids and not requiring the help of the other parent. This kind of household is rising due to the increasing divorce rates and increasing opportunities for both sexes to indulge in activities which did not fall under the responsibilities of the gender role. Such as, fathers becoming more sensitive to their children’s needs and problems and mothers working to bring money home to support the family. Grandparents are also becoming more involved in the raising of the grandchildren rather than the parents. Many people regard this phenomenon in a negative light as parents shirk their responsibilities leaving the care of their own children to their parents and not providing a nurturing environment themselves. With recent amendments in legal rights, homosexuals have been given the right to marry in many states and also the right to adopt children. The right of homosexuals to adopt children is widely debated as being immoral and corrupting the children making them turn into homosexuals themselves but there is no such evidence of such parents influencing their kids to choose their sexual orientation. As is evident the central focus towards the structure of a family in the United States is towards the degree of care towards the children of the household. But in recent years we have observed a sharp decline in the birth rates of kids and population growth is stagnating as the desire for kids is stemming in couples (Americas Families- Changing Family Structures). Personal View In my opinion the nuclear family is still the most viable option for having the best household atmosphere as all the natural constituents are there to support each other in a meaningful relationship. Yet however, the second best alternative to a nuclear household would probably be an extended household structure. It is widely popular in many countries such as China, India and other Asian countries. the reason I believe that the extended family system is suitable for households is because it saves resources with parents getting time to pursue their own activities as relatives could take care of kids on short notice as well as kids having the company that they require at all times. References AEM. (2005, December 12). A Look at the Different Types of Families in America. Retrieved December 30, 2008, from Associated Content: http://www.associatedcontent.com/article/13363/a_look_at_the_different_types_of_families.html Americas Families- Changing Family Structures. (n.d.). Retrieved December 31, 2008, from Americas Families: http://www.libraryindex.com/pages/1315/America-s-Families-CHANGING-FAMILY-STRUCTURE.html

Intro To Teen Pregnancy Essay Essay Example for Free

Intro To Teen Pregnancy Essay Essay Teen pregnancy is one of the biggest problems in this country. Childbearing teenagers cost American taxpayers nearly 10.9 billion dollars each year. Also children who are born from teen mothers also experienced a wide range of problems such as higher risk for low birth weight and infant mortality, have fewer skills and be less prepared to learn when they enter kindergarten and have behavioral problems and chronic medical conditions. Whereas only 50 percent of teen mothers have received a high school diploma and only 30 percent have earned a General Education Development (GED) certificate. From 1996 to 2006 Arizona teenagers were an average of 21.5 percent over the national average in childbirths. Currently there are three main solutions, have parents and schools talk about safe sex, make abortion pills more accessible through the planned parenthood program, tell pregnant teens to consider abortion. The National Campaign reports that teens say their parents influence their decisions about sex, love and relationships the most; even more than the media or their peers. Starting a conversation about sex early and often may prove beneficial. This conversation should ideally begin well before a childs teen years. In fact, the National Campaign encourages parents to talk early and become askable parents. Remember, this is ideally an 18-year conversation, not just one talk. The good news is that teen birth rates in the United States have declined almost continuously since the early 1990s — including a ten percent drop from 2012 to 2013 — further decreasing from 2012s historic lows. Between 1991 and 2013, the teen birth rate decreased by more than half in the United States (from 61.8 to 26.5 per 1,000 teens). Despite this decline, the U.S. teen birth rate is still higher than that of many other developing countries, including Canada and the United Kingdom. Expanding access to Medicaid family planning services, and utilizing mass media campaigns to promote safe sex may reduce teen pregnancy and save taxpayer dollars eloped countries. Unintended pregnancies account for more than 90 percent of all abortions—and a substantial majority of Americans of all political stripes support the goal of reducing abortions. If this is true then why not make birth control pills more accessible through this by making it cost less. If we can do this then taxpayers can avoid the later issue that cost billions of dollars.

Novel Eu3+-doped Garnet-tpye Tellurate Red-emitting Phosphor

Novel Eu3+-doped Garnet-tpye Tellurate Red-emitting Phosphor A novel Eu3+-doped garnet-tpye tellurate red-emitting phosphor with high thermal stability and color purity Introduction The garnet-related family Li3Ln3Te2O12(Ln=Y, Pr, Nd, Sm-Lu) have been extensively studied as promising solid electrolytes for application in solid state rechargeable lithium-ion batteries for the last few decades [1-4]. In 2006, OCallaghan et al. developed garnet-type Li3Ln3Te2O12 (Ln = Y, Pr, Nd, Sm-Lu) to investigate the relationship between Li site occupation and Li ion conductivity [1]. The lattice constant increases with increasing Ln ionic radius in Li3Ln3Te2O12. These Li3Ln3Te2O12 garnets have exhibited a fairly low ionic conductivity of ∠¼10−5 S cm−1 at 600  °C with a high activation energy (>1 eV) [3]. In 2014, the crystal structures and conductivity data for the most of perspective Li-ion solid electrolytes based on garnet-type metal oxides have been recently reviewed by Thangadurai et al. [4]. Garnet host lattices are of considerable interest due to their wide applications as laser hosts and as phosphors for white light emitting diodes [5]. For example, trivalent rare earth doped Y3Al5O12 (YAG) is one of the widely used systems of compounds for solid state lighting applications. Meanwhile, some new garnet-type compound can be constructed based on the garnet structural model, such as the green-emitting Ca3Sc2Si3O12:Ce3+, the orange-emitting Lu2CaMg2(Si, Ge)3O12:Ce3+, and the green-emitting Ca2LaZr2Ga3O12:Ce3+phosphors [6]. Therefore, the development of phosphors based on garnet-type materials is of great interest. As an important activator, the europium ion is one of the most studied lanthanide activators because of its singular luminescence properties, exhibiting pure red emission transitions with a series of sharp lines arising from the excited state 5D0 to the lower energy state 7F0-6. Eu3+ ions exhibit pure magnetic and electric dipole transitions which make it a very s ensitive probe for the rare earth ion site structure/symmetry. 5D0→7F2 electric dipole (ED) transitions around 610 nm are highly hypersensitive, which is highly sensitive to the symmetry of the Eu3+ sites in the lattices; however, the magnetic dipole transitions (5D0→7F1) are not affected by the environment, and their emission intensities are often used as an internal standard [7]. However, luminescence properties of Eu3+-doped garnet-type Li3Gd3Te2O12 have not been studied yet. In this work, red emitting phosphors Li3Gd3(1-x)Eu3xTe2O12(x = 0.01-0.30) were synthesized by the conventional solid-state reaction. The structure, composition and photoluminescence properties of Li3Gd3Te2O12:Eu3+ phosphors were investigated. In addition, the luminescence quenching of Eu3+ doping concentration and CIE on the photoluminescence spectra were demonstrated in detail. 2. Experimental Procedure    The synthesis of Li3Gd3Te2O12 phosphors doped with Eu3+ ions was carried out via a high-temperature solid-state reaction method. Li2CO3 (99.99%), Gd2O3 (99.99%), TeO2 (99.9%), and Eu2O3 (99.99%) as raw materials, they were purchased from Sigma-Aldrich without further purification and thoroughly mixed in an agate mortar. The mixtures were sintered in air at 900 °C for 10 h. when the reaction was end at 900 °C, the products were cooled down to room temperature without cooling devices. Finally, white powers were obtained by grinding. The relevant reaction formulas are as follows: 3Li2CO3+3(1-x)Gd2O3 + 4TeO2 + 3xEu2O3 + 2O2 = 2Li3Gd3(1-x)Eu3xTe2O12+ 3CO2 The crystal structure of phosphors were characterized for phase formation by using powder X-ray diffraction (XRD) analysis with a Philips XPert MPD (Philips, Netherlands) with Cu KÃŽ ± radiation (ÃŽ » = 1.5418 Ã…). The diffraction patterns were scanned within angular range of 10-70ËÅ ¡(2ÃŽ ¸). The morphology and size of the phosphors were measured using a scanning electron microscope (SEM, JEOL JSM-6490). The photoluminescence (PL) and photoluminescence excitation (PLE) spectra of the samples were analyzed using a Hitachi F-4600 spectrophotometer at room temperature. The temperature-dependent PL spectra of the phosphor were recorded in air on an Edinburgh FLS 920 spectrometer equipped with a 450 W Xe lamp. Results and discussion Li3Gd3Te2O12 belongs to the cubic crystal system, space group of Iad (No.230), in the structure of Li3Gd3Te2O12, Gd3+ and Te6+ cations occupy the 8- and 6-fold sites, and Li+ ions are located exclusively in the tetrahedral (24d) sites, respectively. As shown in Fig. 1, this structure can be considered to be formed from two interpenetrating, body-centered lattices composed of edge-shared distorted [GdO8] cubes [8, 9]. One of these frameworks composed of Gd (black sphere) and O (red sphere) is shown in Fig.1(b) along with selected polyhedra to illustrate the linkages between the [GdO8] units. Tellurium in the [TeO6] polyhedra is accommodated in an octahedral site that shares edges with an edge-linked [GdO8] dimer.   Fig. 2 shows the observed, calculated, and patterns of the Li3Gd2.55Te2O12:0.15Eu3+phosphors, confirmed from Rietveld analysis using GSAS software. The final refinement converged with weighted profile of χ2 = 1.086, Rp = 24.4à ¯Ã‚ ¼Ã¢â‚¬ ¦, and Rwp = 33.9à ¯Ã‚ ¼Ã¢â‚¬ ¦ for Li3Gd2.55Te2O12:0.15Eu3+. It is clear that all the diffraction peaks of these samples are in good agreement with the pure Li3Gd3Te2O12 (JCPDS 22-0683) and no second phase can be found, indicating that each sample is purity phase and that the substitution of Gd3+ by Eu3+ do not significantly influence the crystal structure. Li3Gd3Te2O12 belongs to the cubic system, and the lattice parameters are calculated to be a = b = c = 12.41 Ã…, V = 1911.24 Ã…3, which are consistent with the literature [1]. As the similarity of valence and the ionic radii of Eu3+(r = 0.95 Ã…, CN = 8) is the closest to that of Gd3+(r = 0.94 Ã…, CN = 8), the doped Eu3+ is supposed to substitute for the Gd3+ sites [10].   SEM analysis was carried out to investigate the surface morphology and particle sizes of the synthesized phosphor powder. Fig. 3 shows the representative SEM images of two different concentrations of Li3Gd3Te2O12:xEu3+(a, x = 0.05; b, x = 0.20). It seemed as if these small spherical particles combined together to form big crystallites. The size of particles is found to be in micrometer dimension. Meanwhile, the result indicated that doping content of Eu3+ content in Li3Gd3Te2O12:xEu3+from 0.05 to 0.20 mol did not alter the particle size and agglomeration. The grain size of phosphors is important for their applications in commercial WLEDs. In general, for practical bepowdering applications, the phosphors with micron particles can feed well the commercial demand for WLEDs. Therefore, a long ball-milling step is required to break up the agglomerations and improve the quality of the phosphor powder. Figure 4 shows the excitation spectra of Li3Gd2.55Te2O12:0.15Eu3+ monitored at 613 nm emission (5D0→7F2) at room temperature. The broad band of 200-300 nm (No.1) centered at around 275 nm is called as charge transfer (CT) band which is ascribed to the charge-transfer state (CTS) transition of O2−→Eu3+ ions. The position of this band mightily relies on the host lattice. A sequence of sharp excitation bands(Nos.2-11)between 300 and 500 nm was attributable to the intra-configurational 4f-4f transitions of Eu3+ in the matrix, namely,7F0 to 5FJ, 5H6, 5H3, 5D4, 5L8, 5G3, 5G2, 5L6, 5D3, and 5D2at wavelengths300, 314, 321, 364, 368, 381, 386, 396, 419 and 466 nm respectively [11]. The strongest absorption band located at approximately 396 nm occurred from the 7F0→5L6 transition of Eu3+ ions. A suitable red-emitting ultraviolet light-emitting diode (UV-LED) phosphor should exhibit an absorption of around 400 nm (LED excitation wavelength). Obviously, the Li3Gd3Te2O1 2:Eu3+phosphor has a potential value for white lighting device. Upon 396 nm excitation, the PL emission spectrum of the Li3Gd3Te2O12:Eu3+phosphors was measured as presented in Fig. 5. Clearly, the PL emission spectrum was dominated by a strong red emission with a center of about 613 nm due to the 5D0 →7F2 transition. Meanwhile, there also existed some relatively weak excitation peaks at 570, 596, 655 and 709 nm which are attributed to the 4f-4f transitions of Eu3+ ions from the excited state of 5D0 to 7F0, 7F1, 7F3 and 7F4, respectively. Generally, the local symmetry of Eu3+ site in the crystal lattice can be mostly reflected by Eu3+ emission profile. When Eu3+ ion occupies a crystallographic site with inversion symmetry, its magnetic-dipole 5D0→7F1 orange emission is dominant, while the electric dipole 5D0 →7F2 red emission dominates when possessing the non-centrosymmetrical site [12]. Thus, the I0-2/I0-1 emission ratio can be used in lanthanide-based systems as a probe for the local surroundings of a cation. As shown in Fig . 5, in comparison with that of the 5D0→7F1transition, the emission intensity of the 5D0→7F2 transition was much stronger, and the I0-2/I0-1 ratio was about 4.84. They demonstrated that the Eu3+ ions occupied the low symmetry sites with non-inversion centers in Li3Gd3Te2O12 host lattice. This ratio value is larger in comparison with those of the other Eu3+-doped phosphors. This larger ratio is favorable to improve the red color purity. The intensity of luminescence in phosphors is usually affected by the variation in concentration of activators. Dependence of PL emission intensity of Li3Gd3Te2O12:Eu3+ phosphors on dopant concentration can be seen in Fig. 6. None of wavelength shift or peak was observed for a new site at high Eu3+ concentrations. The emission intensity of the phosphor initially increases up to 15 mol%. The maximum intensity is observed at 15 mol% and after this it starts decreasing. The decrease in the emission intensity is due to concentration quenching effect. The concentration quenching of luminescence is observed when the energy transfer from one activator to another. Blasse has pointed out that if the activator is introduced solely on Z ion sites, xc is the critical concentration, N is the number of Z ions in the unit cell and V is the volume of the unit cell, then there is on the average one activator ion per V/xcN [13]. The critical transfer distance (Rc) is approximately equal to twice the radius of a sphere with this volume: The critical transfer distance of the centerEu3+ in Li3Gd3Te2O12:Eu3+ phosphor by taking the appropriate values of V, N, and xc (1911.24 Ã…3, 8, and 0.15, respectively) is 14 Ã…. The intensity of multipolar interaction can be determined from the change in the emission intensity. The emission intensity is related to the emitting level which has the multipolar interaction. The emission intensity (I) per activator ion is given by the formula [14]: where χ is the activator concentration; Q is a constant of multipolar interaction and equals 3, 6, 8, or 10 for the nearest-neighbor ions, dipole-dipole, dipole-quadrupole or quadrupole-quadrupole interaction, respectively; and K and ÃŽ ² are constants under the same excitation condition for the given host crystal [14, 15]. Then we use this equation to fit the experimental results of the relationship between integrated emission intensity and Eu3+ concentration. The curve of lgI/x vs. lgx in Li3Gd3Te2O12: Eu3+ phosphor based on Fig. 6 is shown in Fig. 7. The figure clearly shows that the relation between lgI/x and lgx is approximately linear and the slope is about -1.0. The Q value calculated based on the linear fitting using Eq. (2) is 3.0. This finding indicates that the concentration quenching of the Eu3+-site emission centers is caused by the energy transfer around the nearest-neighbor ions in the Li3Gd3Te2O12:Eu3+ phosphor. The similar phenomenon has been reported in the Sr1. 7Zn0.3CeO4: Eu3+ phosphor [16]. Both the maintenance of the chromaticity and brightness of white light output are favored by a lower-temperature quenching in the solid-state lighting application. Figure 8 represents the temperature-dependent PL spectra of Li3Gd3Te2O12: Eu3+ excited at 396 nm from 300 K to 460 K. The PL intensity almost unchanged with increase of temperature from 300 K to 460 K. The temperature dependence of the integrated emission intensities normalized at the 300 K value. The sample remained at about 82% of the intensity measured at room temperature, even the sample was heated to 420 K (the temperature at which LEDs typically operate). The thermal quenching temperature T50, the temperature at the 50% emission intensity, was above 500 K for Li3Gd3Te2O12:Eu3+. The Eu3+-activated Li3Ba2Gd3(MoO4)8 red phosphor shows lower quenching temperature and only remain 60% of the room temperature emission intensity at 200  °C. The good thermal quenching performance is similar with K2Ba5Si12O30:Eu2+, BaTiF6:Mn 4+, Sr3Lu0.2(PO4)3:0.8Eu3+phosphor [18-20]. Furthermore, the emission wavelengths showed no shift with increasing temperature. The small decrease in the emission intensity and good color purity stability at higher temperature indicates that the phosphor Li3Gd3Te2O12:Eu3+ has good thermal stability and can serve a potential red emitting phosphor for white LEDs. In order to clarify the thermal quenching behavior and to calculate the activation energy, the Arrhenius equation is fitted to the thermal quenching data of Li3Gd3Te2O12:Eu3+ [21]: Where I0 means the initial intensity at room temperature, I(T) means the intensity at   temperature T, c is a constant, k is Boltzmanns constant (8.62 10−5eV/K), and Eais the activation energy for the thermal quenching process fitted with the thermal quenching data. The inset in Figure 9 plots ln[(I0/I)−1] versus 1/T for Li3Gd3Te2O12:Eu3+. Linear regression showed that the thermal activation energy Ea for quenching was calculated to be ~ 0.22 eV. The thermal quenching of the emission intensity of Eu3+-activated phosphors was due to the excited electrons easily jumping into the CTS band after absorbing thermal energy at high temperatures, which the probability of non-radiative transition may increase. Thus, the emission intensity of Eu3+-activated phosphors decreased with increased temperature [22, 23].    The emission spectra of Li3Gd3Te2O12:0.15Eu3+ and commercial Y2O3:Eu3+ excited at 396 nm were then compared in Fig. 10. Remarkably, the integral emission intensity of Li3Gd3Te2O12:0.15Eu3+ was 3.03 times than that of Y2O3:Eu3+. The CIE chromaticity coordinates of the phosphors were calculated to be (0.642, 0.332) for Li3Gd3Te2O12:0.15Eu3+ according to its PL spectra, which are shown in the CIE 1931 chromaticity diagram in the insets of Fig. 10. It was found that the CIE coordinates of the present red phosphor are more close to those of the NTSC standard CIE chromaticity coordinate values for red (0.67, 0.33) standard value, which is better than those of the commercial red phosphors Y2O3:Eu3+ (0.49, 0.32) [24] and Y2O2S:Eu3+ (0.65, 0.36) [25]. Furthermore, to better understand the red emission of the Eu3+-activated Li3Gd3Te2O12 phosphors, the color purity was calculated according to the following expression described by Fred Schubert [26]: where (x, y) denotes the CIE coordinate of the synthesized compounds, (xi, yi) presents the color coordinate of the white illumination and the (xd, yd) is the color coordinates of the dominant wavelength. The dominant wavelength point can be calculated from the intersection of the connecting line between the equal energy point and the sample point. The color purity of Li3Gd3Te2O12:0.15Eu3+ (0.642, 0.332) phosphors is determined to be around 92.6%. This indicates high color purity and excellent chromaticity coordinate characteristics. The inset image in Fig. 10 shows that strong red emission was observed with the naked eyes when Li3Gd3Te2O12:0.15Eu3+is under a 365 nm UV lamp. Conclusion A novel garnet-type red-emitting phosphor Li3Gd3Te2O12:Eu3+ was prepared by the convenient solid-state reaction. The excitation and emission spectra and the dependence of luminescence on temperature were studied. The excitation spectra indicate that this phosphor can be effectively excited by near-UV light, which matches the emission wavelength of near-UV-LED chips well. The phosphor shows intense red emission, which has a high quenching temperature and can keep a stable color purity with elevated temperature. The optimum dopant concentration of Eu3+ ions in Li3Gd3Te2O12:Eu3+ was around 15 mol%, and the critical transfer distance of Eu3+ was calculated to be 14 Ã…. The concentration quenching is probably caused by the energy transfer among the nearest-neighbor ions in the Li3Gd3Te2O12:Eu3+ phosphor. Because of its good excitation profile and stable luminescence properties at high temperature, Eu3+-doped Li3Gd3Te2O12 phosphors are a potential red phosphors for NUV chip-based WLEDs and display devices.

Empathic, Virtual, Real-Time Methodologies :: essays research papers

Empathic, Virtual, Real-Time Methodologies Symbiotic technology and thin clients have garnered improbable interest from both analysts and cyberinformaticians in the last several years. After years of typical research into superblocks, we disprove the synthesis of the UNIVAC computer, which embodies the intuitive principles of cryptography [18,16]. In order to overcome this grand challenge, we use empathic methodologies to disprove that e-business and linked lists can interfere to realize this goal. Table of Contents 1) Introduction 2) Related Work 3) Model 4) Implementation 5) Results 5.1) Hardware and Software Configuration 5.2) Experimental Results 6) Conclusion 1 Introduction The understanding of sensor networks is a confusing quandary. The notion that futurists agree with virtual technology is often well-received. Continuing with this rationale, given the current status of knowledge-based archetypes, analysts obviously desire the refinement of multi-processors, which embodies the compelling principles of steganography. Therefore, the UNIVAC computer and extreme programming are regularly at odds with the visualization of 802.11 mesh networks. Unfortunately, this solution is fraught with difficulty, largely due to interposable algorithms. Although conventional wisdom states that this question is regularly fixed by the study of lambda calculus, we believe that a different method is necessary. We view theory as following a cycle of four phases: storage, creation, prevention, and synthesis. Even though existing solutions to this obstacle are satisfactory, none have taken the robust approach we propose in this position paper. To our knowledge, our work in this work marks the first framework evaluated specifically for electronic information. We emphasize that JUBA enables 64 bit architectures. We view computationally disjoint machine learning as following a cycle of four phases: provision, construction, allowance, and study. Existing mobile and atomic algorithms use event-driven information to deploy object-oriented languages [16]. Therefore, we see no reason not to use client-server archetypes to measure RPCs. In our research we verify that virtual machines and public-private key pairs are entirely incompatible. Similarly, the flaw of this type of approach, however, is that scatter/gather I/O and massive multiplayer online role-playing games are generally incompatible. For example, many applications refine concurrent technology. As a result, JUBA creates interactive technology. The roadmap of the paper is as follows. First, we motivate the need for object-oriented languages. Next, we confirm the study of XML. to solve this issue, we introduce a replicated tool for constructing link-level acknowledgements (JUBA), arguing that Markov models and scatter/gather I/O can cooperate to accomplish this mission. Ultimately, we conclude. 2 Related Work Our solution is related to research into the exploration of DNS, symbiotic methodologies, and the improvement of web browsers.

Parent-Child Relationship Essay -- Papers Parenting Children Essays

Parent-Child Relationships The topic I have chosen for my paper is that of relationship between parents and children. Some of the points that I will be discussing are child abuse, child neglect and how it can affect a child and the relationship with the parents. A parent-child relationship is a special relationship that has a huge effect on the way that the child will turn out. This relationship is formed through pregnancy, adoption, and step parenting. Parenting requires a great deal of adaptation. The parents want to develop a strong bond with their child but they also want to maintain a healthy marital relationship and adult friendships. Potential parents often ask themselves what they will be like when they are parents and try to recall some experiences when they were children. Mothers are the primary caretakers of the children. The fathers have had minimal care taking responsibilities. Many women, if they had a career before hand, have to give it up to stay at home with the child. Although, many fathers where the wives must work become important in the process of care taking because their role must increase to their children. Studies of human fathers and their infants confirm that many fathers can act sensitively with their infant (according to Parke & Sawin, 1980) and their infants form attachments to both their mothers and fathers at roughly the same age (according to Lamb, 1977). A number of studies have been done on the caretaker’s effects on the child and suggests that the effects may have been caused by child’s behavior as much as by the caretaker’s (according to Bell 1979). The child’s aggression level can be affected by the parent’s authoritarian discipline. â€Å"Parents differ widely in sensing the needs o... ...d friendships later in life and also a good upbringing. Bibliography: References: Daniel L., Davis (2000). The Aggressive Adolescent: Clinical and Forensic Issues Don Baucum (1996). Psychology. New York: Barron’s Company F.L. Marcuse. Areas of Psychology. New York: Harper and Brother’s Publishers Edited by Raymond J. Corsini. Encyclopedia of Psychology, Second Edition, Volume 1. New York: John Wiley and Sons Inc. Edited by Raymond J. Corsini. Encyclopedia of Psychology, Second Edition, Volume 3. New York: John Wiley and Sons Inc. GE Vol 5, No 3 - Parent-child relationships & Materialism http://www.mra.org.uk/globalex/issue19/pcrels.html Themestream: Parent Child Relationships http://www.themestream.com/tax/Society/Relationships/Parent_Child_Relationships Britannica: Parent/Child Relationships. http://www.britannica.com

Psychology vs Sociology Essay

Psychology and sociology have their differences and similarities. However, this essay will mainly focus on the differences between their approaches and how they are applicable in the real world. Psychology, fundamentally, is the study of behaviour and of the functions and processes of the human mind, especially relating to the social and physical environment while sociology is defined as the study of social life, social change and the social causes and consequences of human behaviour. Psychologists are more interested with what occurs within people, which includes emotions, perceptions, learning, personality and thinking. Sociologists, on the other hand, mainly focus on what occurs among people. These occurrences could be things such as interpersonal relationships, negotiating conflicts, and the effect of social systems like education and politics on personal and group behaviour (Benokraitis, 2009). Psychology focusses on the human mind and how and why people think and behave they way they do. Sociology examines groups of people, communities, societies and even nations. They might research on things such as changes in population, effects of events on entire communities and culture. One way to look at it is that psychology is more about the individual or small groups and sociology is more about larger groups of people such as communities, societies. While the difference is significant, these two sciences do have similarities as well as an intersection between them. They are both beneficial to the society and see etiology, the study of causation or origination, as of great importance (Ellis, 2010). There is also a sub-field in psychology known as social psychology that is a discipline which uses scientific methods â€Å"to understand and explain how the thought, feeling and behaviour of individuals are influenced by the actual, imagined and implied presence of other human beingsà ¢â‚¬  (Gordon Allport, 1985). Social psychology looks at a wide range of social topics, including group behavior, social perception, leadership, nonverbal behaviour, conformity, aggression, and prejudice. It is important to note that social psychology is not just about looking at social influences. Social perception and social interaction are also vital to understanding social behavior. Prev Page Next Page

Aging in Family and Marriage

People in society have a longer life-span now than ever before in the history of man.   The population of old people and â€Å"old old† people are increasing every year making a four generation family – consisting of children, parents, grandparents and great-grandparents – the norm in society.In the late 19th century the amount of people in their senior years (i.e. 65 years old and above), given a total population of 23.2 million people was 600,000 which increased tremendously in the 20th century.At the beginning of the 20th century, the amount of old people were at 3.1 million given a population of 76,000,000 and in 1975, with a population of 235,000,000, there were 21.8 million senior citizens in society, making it an 8 percent increase in old people in a span of 75 years.With that percentage growth, there are definitely more â€Å"old old† people currently in society and it cannot be doubted that the amount of â€Å"old old† people affects soci ety in numerous ways.  Ã‚   For this study, the effect of the aging population on the most basic institution of society will be discussed – the family.Aging definitely affects people’s lives and proportionally affects the lives of the people around those who are aging.   Since the family is the basic unit of society, the effect of aging on the family and the changes that occur in that social unit because of aging will be discussed.When we speak of family, this entails the relationships between parent and child as well as husband and wife. Aging has an impact on these relationships that cannot be ignored by the rest of society as the family represents the foundation of society and thus if any changes occur within that framework then it cannot be questioned that these changes influence the dynamics that transpire with the society as a whole.Aging and the FamilyAccording to Andre Cherline (1983), historically, old people continued to hold the power and authority over the family until the day they died.   This was the case mainly because it was the elders who had ownership of all the properties and resources of that family, which the heir will only be able to handle the moment the patriarch of that family has bequeathed his possession in a will, after his death.Thus, older people were normally respected and feared by the younger generation albeit not loved. (7)   Ã‚  This is especially true since it is in itself an accomplishment to grow old because to be old at that time would mean that the person has survived all the diseases in a time when medicine was not at all as advanced as it is today.Although an accomplishment, it creates resentment in the younger generation especially if the younger generation has reached adulthood since the old man controls the family’s resources, the adult child had to be dependent on the old man until such time that he passes away.This no longer holds true in this day and age.   Familial relations are no t as feudalistic as it used to be during colonial times.   The dynamics of the family are no longer such that the parent has full control of the resources of the family.Although, parents may have possessions that they accumulated throughout the years of hard work that they may want to bequeath to their children, the financial stability of the children are no longer fully dependent on these resources as they can independently work for their own wages and accumulate their own wealth apart from that of their parents.However, the presence of old people poses a problem of idleness wherein they are â€Å"too old to work but too young to die† (Freedman, 1999).   In 1952, insurance companies decided that the best way to care for the elderly was to insure them with pension upon retirement.The marketing ploy was to make retirement a leisure trip – no kids, no responsibilities, no worries – which they coined the â€Å"Golden Years.†Due to this, most elderly peop le availed of a pension plan making them absolutely independent of their children while enjoying the rest of their life in comfort and leisure.(1)   Given this independence of each other, the relationship between adult child and parent are normally more favorable than during the colonial times, wherein the parent and child may develop a more emotionally satisfying relationship which is warm, close and affectionate. (Cherline, p.8)This, however, does not hold true for the elderly who are dependent on their children for financial support.   It is common that the parent had spent all their income for the upbringing and education of their children and so upon retirement there are financially incapable of supporting themselves or even enjoying the â€Å"Golden Years.†In cases like these, the relationship between parent and child may be tense and the dynamics of the family of the adult child will have to change and adjust itself to the presence of the elderly parent.The strain or benefit that the elderly parent will cause to its adult child may differ per situation.   First, assuming that the adult child has his own family, the strain may be caused by the elderly parent’s relationship with the in-law.Depending on how intrusive the elderly parent is, his presence will cause a strain in the marriage of his adult children.   Apart from the possible abrasive nature of the elderly parent, the strain may originate from the extra expense in caring for the elderly parent as well.Assuming that the adult child is divorced the strain in the parent-child relationship maybe greater.   Divorce in itself is a very traumatic experience for those involved in the process and so the divorcee is normally both emotionally sensitive and financially unstable.The strain with the elder parent can come in two forms: the disapproval of the elder parent of the divorce and the expense of caring for an elder parent in a situation when finances, due to the divorce, are ext remely tight.   (15)However, the presence of an elder parent in a newly divorced adult child can also have benefits which can strengthen the relationship between the parent and the adult child.The adult child may find his/her emotional support from the present parent as well as help the adult-child in caring for the children, household and finances (granted that the elder parent is financially able).   (16)  Whatever the case maybe, it is through the relations of the elderly with their family that the elderly are able to maintain their social identity.   (18)   Through their connections to their family – with their children, with their grand children and great-grandchildren – the elderly find purpose and meaning to an otherwise â€Å"purposeless† aging existence when they cannot work and contribute to the society or are too young to die.By providing the emotional support for their children their relationship are strengthened.   Through the caring and sharing in the raising and upbringing of the grandchildren, their contributions to the welfare of the children’s disposition ultimately contributes to the well-being of society.Although, these relationships may not be always peachy, the contribution and influence over their children and their grandchildren is apparent and allows them to continue to become a function of society.Aging and MarriageIn marriage, aging has a very direct consequence and influence.   Assuming that both partners are still alive, the interaction of the spouses within their relationship change proportionately with their age because of their emotional maturity as well as deteriorating physical health.In terms of physical health, physiological complication causes the deterioration of physical intimacy within an elderly couple.   Both the ovarian function in females and the testicular function in males deteriorate as they age.Apart from these physiological changes, psychological changes occur as well.    Especially for men, the inability to sexually perform, the loss of the role of leader and breadwinner, and the extra time to notice everything else may cause depression.   Thus, there is a greater need for emotional support, affirmation, acceptance and trust from the spouse.   (Metz, 1998)As a result of these needs and the compensation for the lack of physical intimacy, elderly couples claim that they have a better relationship with their spouses as they now consider them their best friends.   (Appleton & Bohm, 2001) (Fahey, 2001).As Appleton & Bohm succinctly puts it (2001), elder couples have relationships where â€Å"myths dissipate, reality sets in and marital identity takes hold. Communication patterns solidify, knowledge expands and reliance on collaborative-cooperative styles of dispute resolution increases.†

Barbie: Should The Doll Be Modified? Essay

Since Barbie was first launched by Mattel in 1959 over 10 million have been sold. â€Å"Somewhere in the world, a Barbie is sold ever half-second†(Dittmar, Halliwell, and Ive). Out of all Mattel profits, Barbie makes up approximately 80% of them. Barbie brings in such a high profit because she has always been seen as the ‘perfect woman’: perfect house, boyfriend, wardrobe, but most importantly a perfect body. However stated by Sakima Laksimi in ‘The Barbie Effect’, â€Å"the problem is little girls are growing up admiring this unrealistic icon. Barbie shows girls that to be perfect you need to be skinny. In today’s media being skinny is favored, but are these little girls any less because they don’t resemble this unrealistic doll? Of course not, but when skinny is all they see, that is what they want to be. The effects of being self conscious and unsatisfied with their body can follow a little girl even after childhood†. Many people do not see the underlying problem with Barbies, so it is important to bring awareness to her true message because it is extremely unhealthy for girls to follow. While young girls should be able to freely play with Barbie-dolls, it is sometimes necessary to make sure those dolls aren’t harmful to their self views. Barbie provides young girls with stereotypical gender roles. Abramason says,â€Å"Significant results would mean that exposure to Barbie could lower self-perceived ability and makes female stereotypes more salient†. This put the idea in girls heads that they will never achieve the same status of knowledge as boys, and if they do it is not â€Å"cool†, and if you aren’t â€Å"cool† you certainly can’t be â€Å"perfect† like Barbie. Many girls look at Barbie as an idol, so seeing her lack the brains in math makes them want to pursue the same. Girls should not count themselves out of school because a doll teaches them otherwise. If parents don’t believe Barbies have a negative impact on their daughters academic skills they need to make sure they try their hardest in school rather than reciting after a Barbie, that was released in 1992, â€Å"Math is tough†, shown in ‘The Pros and Cons of Barbie’. If a girl is told that math is though she will live it. It is understood that Barbie provides a role model for young girls to express their beauty; however parents must realize that along with her horrifying stereotypical attributes she shows girls that prioritizing surface beauty is the only thing that matters. Yes, if the dolls were modified girls might turn away, but once they realize it is still Barbie they will indulge it due to the strong bond girls have developed with her. Urla and Swedlund in ‘Barbie Blues’ discovered, â€Å"If Barbie were full size, her measurements would be 32-17-28, typical of a woman suffering from anorexia. Add to this anorexic frame her large gravity-defying breasts and you have a body ideal that is virtually impossible for a healthy, non-surgically altered woman to attain†. If young girls want to â€Å"grow up to be look like Barbie† there is a huge problem. There are so many anti-anorexia campaigns, yet we continue to sell a disproportionate doll for little girls to idolize. Gathered from The Pros and Cons of Barbie,â€Å"If Barbie were a real woman she would have a waistline 39 percent smaller than the average anorexic patient. Her fat-to-body-weight ratio would be below 17 percent, which is required for a woman to menstruate†.. Anorexia, the starving of oneself, forces the body to conserve energy because it lacks the energy it receives from food. Due to this, many  systems in the body are slowed down, and one of these systems is the reproductive system, because without energy your body systems can not function properly. Also a result from the energy conservation and the size of Barbies waist, wouldn’t provide a structure that could be humanly possible to live in. In, ‘The Pros and Cons of Barbie’, â€Å"Researchers generating a computer model of a woman with Barbie-doll proportions, for example, found that her back would be too weak to support the weight of her upper body, and her body would be too narrow to contain more than half a liver and a few centimeters of bowel. A real woman built that way would suffer from chronic diarrhea and eventually die from malnutrition†. This means a women with these measurements simply could not exist, but girls are still trying to achieve â€Å"Barbies look† because she is portrayed as â€Å"perfect†. Barbies should not continue to be sold with the current structure, as it is dwindling to a girls health. Many mothers argue that they turned out just fine playing with Barbie, so why wouldn’t there daughters? However, many mothers were born into a time where media advertised how to gain weight rather than lose it, for example â€Å"Wate-On†, which was advertised in newspapers during the 1960s! This caused them to be indirectly taught the idea of â€Å"more meat than bones†, so by the time they played with Barbies they dropped them when it was time to eat what was on the dinner table but even then, girls began to look at themselves negatively when Mattel came out with â€Å"the 1965 Slumber Party Barbie. She came with a book titled ‘How to Lose Weight’ which advised, ‘Don’t eat.’† (â€Å"The Pros and Cons†), this introduced the idea of wanting to look like Barbie. So, as these mothers who argue against modifying Barbies figure may not have become anorexic, they still suffered from negative body image when they were younger because of the barbies which were produce during their times. Girls now a days are surrounded by teeny women in spotlights, so they indirectly taught the importance of being thin, so with two sources of media hypnotizing them into becoming unhealthy and skinny these girls are at risk for a much higher chance for anorexia.  While television, music, newspapers, and other types of â€Å"adult† media can not be regulated to be in favor of young girls, Barbies can be. Adding on to young girls becoming more and more self conscious of their bodies, in 2006 research was conducted by The American Physiological Association comparing the Barbie-doll to the Emme-doll, which is a British toy that has realistic body measurements. It was discovered that the girls who played with Barbie had more body dissatisfaction. Dittmar, Halliwell, and Ive’s research explained: This demonstrates that it is not body-related information conveyed by dolls per se that has a direct impact on young girls’ body image, but by Barbie dolls specifically, which represent a distortedly thin body ideal. These ultra thin images not only lowered young girls’ body esteem but also decreased their satisfaction with their actual body size, making them desire a thinner body. This detrimental effect was evident already for girls from age 5  ½ to age 6  ½ but was more pronounced among 6  ½- to 7  ½- year-olds. At such a young age girls should not be worrying about what they look like, if at all. The bond that little girls have with Barbie is the cause of their low self-esteem. In conclusion, it is understood that little girls are expected to play with dolls, but they do not need to be exposed to a toy that takes a toll on their health in the long run. Girls should not base their body on a disproportionate doll, and if Barbie is going to continue to be the doll girls idolize it should be made into a realistic structured doll that promotes good health. Works Cited Abramson, Elise. Barbie Brains: The Effect of Barbie Dolls on Girls’ Perception of Male and Female Jobs. Oregon State University, 2009. Oregon State University Library. Web. 25 January 2014. Dittmar, Helga, Emma Halliwell, and Suzanne Ive. â€Å"Does Barbie Make Girls Want to Be Thin? The Effect of Experimental Exposure to Images of Dolls on the Body Image of 5- to 8-Year-Old Girls.† Developmental Psychology 47.2, 2006. Web. 25 January 2014. Sakina Laksimi.†The Barbie Effect.†Media Ecology. Mercy College, 2012. Web. 20 January 2014. Urla and Swedlund.â€Å"The Barbie Blues?† The Body Project. Bradley University, 2001.Web. 20 January 2014. â€Å"The Pros and Cons of Barbie and their Extreme Effect on Society .† Body Image, 2011. Web. 22 January 2014.

Modern public life Essay

â€Å"Modern Public life could not exist or function properly without the Media† In this essay I will be discussing the above statement and arguing that without Media, modern public life could not exist. I will first explain some key terms to help in the argument including explaining the meaning of the term Public Life. According to the Collins Dictionary â€Å"The Public is people in general or the people of a particular place. Public is used to talk about the feelings and behaviours of people in general. If someone is a public figure or is in public life, they are well known. Public is used to talk about things being said or done so that everyone can hear them or see them†. What is meant by the term Public Life is a space where a body of people can come together to discuss issues relating to their group. These groups can be very small like a book club or large like the United Nations and they can discuss anything from the latest Bryce Courtney novel to world peace. Geoffrey Craig in his book The Media Politics and Public Life explains the concept of public life as: â€Å".. A body of people within a society and a domain within which debate about that society occurs†¦ The public is also a subject, and people come together as a public in modern times when they engage in readings of the events, the stories and the debates that circulate in the society. â€Å"(2002. P49) Public life occurs where private issues are brought to the attention of the general public through the use of the media. Without out the media it would be private life, not public life. Media, as defined by the Collins dictionary is the plural of medium which â€Å"is a means of communicating or teaching something. † When we talk about the media we do not just use traditional forms of media like newspapers, television and radio but we also use other forms of media like movies, the internet, transnationals companies and communication technologies. All of these forms of media are sites where the meanings of public life are played out, debated and evaluated. Our everyday lives could not function properly without the media. Media is a drug that we cannot live in a democratic society without. We listen to the radio on the way to work to hear the traffic reports and to know where the multi-novas are hidden. When election time comes, we can’t invite John Howard round for dinner to discuss his policies so we rely on the media to show us them through television radio and newspapers. When a cyclone is coming our way, how do we know to lock up the house or leave town? The media inform us. Even the very early smoke signals were a form of media, a form of communication. It is important to stress here that there is no way that public life could function without the use of the media as the understandings of our society, the norms and values of the world in which we live are the products of living in a mediated world. We as a public only ever see the representations of a breaking story through the television or in the paper. We rely on the media to tell us breaking stories that are happening around the world because of our geographical locations. John Hartley (1992 P1) has noted: â€Å"while [the public domain and the public] don’t exist as spaces and assemblies, the public realm and the public are still to be found, large as life in the media. Television, popular newspapers, magazines and photography, the popular media of the modern period, are the public domain, the place where and the means by which the public is crated and has its being. † In talking about public life we must clarify the notion of having a public sphere. By public sphere we mean any activities that occur in the public eye or that is brought to the attention of the public through the media. Habermas argues that the original public spheres originated with the early Bourgeois movement in the tea houses, libraries and reading societies in England. It was here where people gathered to discuss issues concerning their lives and the society in which they lived. What made this a public sphere was that the people were all gathered in one place discussing issues that were relevant to them. Although this was regarded as one of the original democracies that were a voice for the people, Habermas also understood that the early tea house publics were not totally representative of the communities for which they were fighting for. In the early days women were not included in the tea house discussions, also, only a certain class of people were allowed to enter the tea houses and those that could not read would not need to go to reading houses or libraries. Of course those that could not travel to these public events had no said either. This limited the voice of the people to only those that were upper-class, well educated men that could travel. This was not representative of the wider communities. The next stage in the evolution of public life was when the printing presses made literature available to the mass public. This literature was free from state control and was the newest site for public life to be played out on. Of course if you were illiterate the medium was useless but for those that could read and had access to the literature a new public was formed. The reading public was not tied by geographical restrictions. The development of film was again a new medium that with it brought a new public. By now we have to understand that there are a huge amount of publics that all have their own issues to debate. A person can be part of a number of publics at one time. She may be a single mother, working at the supermarket, she is part of the conservative party, is a part of a sci-fi reading club, she buys Thai cooking books, buys red wine and goers to wineries, is part of a mothers group at day care, has a network of other single friends on the internet and is part of a union at work. All of these publics want very specific things and all lobby for different things, the private issues become public when they are played out through the different types of media. Without the media the issues would not be brought into the public spotlight and would likely not be resolved. It is essential to point out that modern public life is played out through our media consumption and not through our everyday experiences. We collectively watched the September 11 attacks through our televisions, listened to the disaster unfold on our radios and read about and saw the pictures of the devastation in newspapers. Without these sites we would not have experienced it at all. This highlights the fact that we rely on the media to get information that would not readily be available to us. Peter Dahlgren argues that the public sphere is not just a â€Å"marketplace for ideas or an information exchange depot but also a major societal mechanism for the production and circulation of culture†. This idea of the media framing culture is very important because it gives the media great power to give meaning to our identities. Culture, which consist of ideas, customs, norms, values and attitudes are shared by the people of a particular country. Campaigns that promote a type of culture are often produced by government and portrayed through various media outlets. Popular campaigns that frame our culture are the domestic violence ad â€Å"Australia says NO to domestic violence† and the drink driving campaign, that enforce that fact that those things are going against our culture and that that type of behaviours is not accepted. These campaigns are dependant on the media getting the message out there. The main media technologies that are responsible for the communication of public news are television, radio and print and these all function as journalism. These are seen as the most trustworthy sources of information as they are governed by laws that protect privacy, defamation and the use of misleading information. Journalisms main role is to seek the truth and tell the masses. Although these forms of media are self regulated (to be free of outside influence) their guidelines that journalists have to abide by are strict to keep the freedom to self regulate. Television is the most powerful mass medium and is an absolute must in every household. In my house alone there are four televisions and there are only 2 people living there. â€Å"A productivity commission report found that Australia’s spend over 20 hours per week or 36% of their leisure time watching television†(Productivity Commission 200, P62). The ability to actually see an event or person and hear them speak makes television the most trustworthy of the media outlets. Politicians often measure the success of a campaign on the presentation of their image/policy/media events. Although television has taken over from the print media as the most popular type of news media, many argue that the print media are the most influential mass medium for political debate. Agenda setting for the day is mostly done by the ‘quality’ morning newspapers. Newspapers are often more detailed in their dissemination of public life because they are not restricted by the time factor that is TV. Radio is the secret weapon in the fight for a public life. The radio doesn’t have the ability to show the audience an event or doesn’t even give them a chance to read about an issue but it is the most pervasive forms of media as it can be listened to whilst driving or doing the housework. Politicians often use talkback radio as a direct link to the public. It is often the closet the general public will get to speaking with high profile players. Because the media is the chief agency to communicate public life and the world that we know is based on the representations of the media, there is much scrutiny placed on the authenticity of the stories that are shown to us. In Australia there are laws that ensure that one source does not have monopoly over the content of our media, Australia’s former prime minister Paul Keating put it best when he said that the cross ownership laws meant you could be a ‘prince of print or a queen of screen’ but not both. This means that one person will not be in control of all of the media of our country and so a true representation of society’s issues would be presented by the media. Again without the media, Australia would not be able to be a democratic society and have a public life. Through many different sites issues and events are played out and become open to the scrutiny of the general public. These different issues and events create discussion between the people that read or hear about them and this is what is meant by a public life. People that are hundreds of miles away from each other can be discussing the same issues without even having to talk to one another. These systems of communication enable us to live in a democratic society, a society where we can chose who leads us in government and we can discuss issues relating to our society. This would not happen if wasn’t for the role of the media. Without the media to portray issues and events we would never hear about a sale on in the city or about governmental policy that is set to affect us all. Public life as we know it would not be able to function properly without the media. References Craig, Geoffrey. Chapter 1, 2 and 3. The Media, Politics and Public Life. Victoria: Allen and Unwin, 2004. Cunningham, Stuart and Graeme Turner. The Media and Communications in Australia. St Leonard’s, Sydney: Allen and Unwin, 2002. Dahlgren, Peter. Television and the Public Sphere: Citizenship, Democracy and the Media. London: Sage, 1995 Grossberg, Lawrence, Ellen Wartella and D. Charles Whitney. â€Å"The Media and the Public. † Media Making: Mass Media in a Popular Culture. Thousand Oaks, CA:Sage, 1998. 357-374 Habermas, Jurgen. The Structural Transformation of the Public Sphere: An Inquiry into the Category of Bourgeois Society. Trans, T. Burger. Cambridge: Polity, 1992. Scannell, Paddy. â€Å"Public service broadcasting and modern public life† Media, Culture and Society. 11(1989):135-166. Thompson, John. â€Å"The Media and the Development of the Modern Societies† The Media and Modernity. Cambridge: Polity Press, 1995. 44-69 Wark, McKenzie. Celebrities, culture and cyberspace: the light on the hill in a post-modern world. Sydney: Pluto Press, 1999. 128-136 http://malagigi. cddc. vt. edu/pipermail/icernet/2004-January/002743. html http://www. zip. com. au/~athornto/thesis2. htm http://www. gseis. ucla. edu/faculty/kellner/kellner. html.

Analysis Of Recruitment Methods At Tata Consultancy Services

Analysis Of Recruitment Methods At Tata Consultancy Services Introduction to Recruitment Indian business industry is experiencing vibrant changes in recent times as never endured in the past. Range of national economy resulted from a steady growth in business industry. This growth finally depends up on potential human resources of the organizations. Customer focus, cost advantageous, agility in the process, quality of products and services, certainty and last but not the least multi-task human resources are appeared to be core competencies of modern age organizations. Human Resource Management can be viewed as an approach to management that considers people as key resources. Human Resource Management is developed from the practice of Personnel Management. Personnel Management assists with the management of people in an organization. Personnel Management is concerned with establishing, maintaining and developing systems that provide the framework of employment. This framework of systems operates through employee’s relationship with the organization starting from recruitment to retirement (Eugene and Nic 2008). Personnel management is traditional and properly related to old model of organization, which is bureaucratic in nature. That means PM is less flexible and has higher degree of centralization. Personnel management is concerned with obtaining, developing and motivating human resources needed by the organization to achieve its objectives. The aim of personnel management is to make an effective contribution to the objectives of the organization and to the fulfillment of its social responsibilities (Armstrong, 2006). In addition, as Armstrong (2006) defines ‘Human Resource Management is a strategic and coherent approach to management of organizations’ most valued assets’. Human Resource Management system as HRM operates through HR system that brings together in a coherent way (Armstrong, 2006). HR philosophies: which describe the value and guiding principles adopted in managing people. HR Strategies defining the direction in which HRM intends to go HR Policies: these are the guidelines defining how these values, principles and strategies should be applied and implemented in specific areas of HRM. HR Processes: consisting of procedures and methods used to put HR strategic plans and policies into effect. HR Practices: comprising of informal approaches used to manage people. HR Programs: which enable HR strategies, policies and practices to be implemented according to plans. The role of HR manger has changed in response to social, economic, political conditions and to changes in technology and it is still developing dynamically. In addition, the relative importance of several activities has changed as external circumstances have affected the needs of organizations and it is still a dynamic area where the roles and ways of organizing the HR function continue to change and develop (Foot and Hook, 2008). the concept of Human Resource Management first appeared in the 1980s and the use of the term grew in the 1990s ( foot and Hook 2008). in HRM, there is a greater emphasis on strategic issues and on the way in which the human resource contributes to the achievement of corporate objectives. Write about SHRM There are ranges of activities that HR managers do on regular basis: recruitment and selection, learning and development, human resource planning, provision of contracts and fair treatment, provision of equal opportunities, managing diversity, motivating workers to achieve improved performance, employee counseling, talent management, payment and rewards, health and safety, dealing with grievances, redundancy, negotiation, adding value, ethics and corporate responsibility, change and knowledge management and so on (Foot and Hook, 2008).

Multiple Voices Essay Example | Topics and Well Written Essays - 1000 words

Multiple Voices - Essay Example Lee: Language has changed drastically in the past ten years since the usage of internet has increased among students. I have made use of a case study of a teacher Jacqueline for the readers of my written pieces in order to make them understand the manner in which writing English language has changed. Students have started using shortcuts of words that they using while instant messaging of texting. Some of the common words that Jacqueline has marked during the correction session are U, 4u, abt etc. I have come across a difference in approach towards writing language. I have both Asians as well as natives in my classroom and they all seem to make mistakes i.e. using instant messaging and texting English language. I have even given an ultimatum to my students that if they will not stop using inappropriate English language then I will have to deduct their marks. I want my students to learn English in the best possible and academic manner because language is a way through which one may ju dge others (Ober). Tan: I would not agree more. Language has changed to a great extent. I must say that language is a very powerful tool within a society. It is no more an astonishing fact that language has rather become an element in relationships. I would present my mother’s experience here being an immigrant. Since we are not native English or Americans, my mother had trouble in speaking English. However, with the passage of time, she learnt her way to speak English language fluently. My mother made use of different television channels to learn English language as well as magazines. One fact that I noted all this time was that people judge others on the basis of manner in which others speak English language. My written pieces â€Å"Mother Tongue† is an evident example of the experiences that I and my mother had been through. People do not consider immigrants to be able to speak English really well despite the fact that they learn their way to speak English fluently. I would

Literature review Essay Example | Topics and Well Written Essays - 1250 words - 2

Literature review - Essay Example mprove their health and means are devised for them to have less probability of converting into a diabetic patient, the metabolic and cardiovascular abnormalities which are not that severe in nature are hard to identify in fasting plasma glucose FPG and therefore are not well understood. This will help analyze the procedure that needs to be required and the patients that need to take care in order to prevent from being a diabetic patient. It has been identified that obesity is one of the major reasons for people to have diabetes in their early or late stages of life. Obesity and overweight problems are one of the major reasons why people take up fatal diseases. This high rise in obesity is due to the consumption of diets that have extremely high amounts of calories which leads to nothing but obesity and health issues. It was examined that whether dietary energy density was connected with obesity and its related problems including insulin resistance and the metabolic syndrome. A study was conducted on diet and energy with n = 9,688. The dietary energy density was calculated on the basis of foods only, no other factor was included. There was used a series of multivariate linear regression models to decide the sovereign connection between dietary energy density, obesity measures (BMI [in kilograms per meters squared] and waist circumference [in centimeters]), glycemia, or insulinemia. There was used Poisson regression model to determine the independent involvement between dietary energy density and the metabolic syndrome as explained by the National Cholesterol and Education Program This study has basically helped in understanding the connection between obesity and the diabetes that people have in young age. It has highly helped in identifying the reasons and the connection between the two factors of fatality which are highly dangerous for life. The article of ‘Coping, Affect, and the Metabolic Syndrome in Older Men: How Does Coping Get Under the Skin?’ by

Example of science being used in your World Assignment

Example of science being used in your World - Assignment Example Surprisingly, he was suspected to have involved himself in doping, a scientific contraption meant to enhance performance. It is from this situation that science can be used to lessen the quantity of athletes practicing this illegal act in sporting. There are procedures to be followed by all sports officials before the commencement of any competition. The idea is to perform a quick drug testing test ethic, which will detect any strange substance hiding in the blood. The science of doping detection is advancing, and this technology can be used to catch athletes involved in such immoralities to emerge victorious, for example, Floyd. Another proficiency that can be used is introducing a benchmark to stop those athletes whose drugs are already settled in the body. This will detect the amount of occurring chemicals that should be in the blood. Repeating testing for doping makes the drugs resistance to the chemical, hence the substance should be upgraded after sometime (Bell). Therefore, modern science can be used to assess the amount of chemical level in the blood and can help lessen instances of unprofessio nalism in sporting

White Paper Assignment Example | Topics and Well Written Essays - 250 words - 1

White Paper - Assignment Example Therefore, nurses are advised on how to avoid misuse of social media. Misuse would result into a compromised quality of their service delivery (Gagnon & Sabus, 2015). The white paper puts emphasis on the fact that patients’ personal treatment history should be safeguarded by nurses. The information can only be shared for medical purposes with the consent of the patient. Therefore, social media should not be used as a platform for sharing private medical information inappropriately. The health Act on Insurance Portability and Accountability gives the necessary guidance on patient privacy regulations (Hader & Brown, 2010). The white paper is a major boost to the efforts of the policy to improve health care service quality and safety. If the provisions of the paper are adhered to, the management and safe-keeping of patient records will improve. Breach of patient confidentiality will be avoided and good professional conduct will be a major code of operation. If nurses pay attention to their conduct, the services they provide will meet the standards that satisfies patients. Consequently, the quality of health care service will be improved (Henderson & Dahnke,

Summary of Molecule bonds, Amino and Nucleic Acids, Proteins Assignment

Summary of Molecule bonds, Amino and Nucleic Acids, Proteins - Assignment Example More generally, bonds may be intermolecular (between atoms in different molecules) or intra molecular (atom to atom bonds within the same molecule). Different theories (such as valence theory and molecular orbital theory) have been used to describe chemical bonds. They are viewed as being complementary with each theory best explaining certain aspects of the bonds. The use of these theories has led to the creation of different molecules through the various bonding processes. Additionally, there are means to visualize the bonding. One of the most popular bonding diagrams is the Lewis Dot Style. In this type of diagram, the chemical symbol of the atom is drawn with up to eight electrons drawn around it as dots (two on each side, top, and bottom). Bonds are displayed according to the arrangement of electrons being shared or attracted. 2. Amino and Nucleic Acids Amino acids are a class of chemicals that contain both an amine and a carboxyl (or carboxylic acid) group. All amino acids follo w a general chemical formula of H2NCHRCOOH, where â€Å"R† is used as a variable to refer to one of many possible side groups. These groups can be as small as one molecule but can also grow quite large. The name and functional of amino acids are closely related to the side group. Accordingly, an alternate name for the side group is functional group. All proteins are made from a chain of amino acids. The number of amino acids contained in the protein, as well as their order, is specific to that protein and results in the protein’s shape. A group of twenty amino acids are drawn from to make up all the proteins of the body. Along with amino acids, nucleic acids are a type of large molecule (macromolecule) that is extremely important for life to occur. All nucleic acids are made up of smaller structures called nucleotides (molecules with a nitrogen base, phosphate group, and a sugar group containing five carbons). The sequence of nucleotides will determine the type of nucl eic acid that is formed. Two of the most essential types of nucleic acids (as related to life) are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). These structures are responsible for containing and transcribing genetic information. This information is then used to instruct many processes within the body, including the construction of proteins. Amino and nucleic acids are robust in living creatures. Together they enable the transport, encoding, decoding, and execution of genetic processes. Certain kinds of each compound can be synthesized in the laboratory for research and various treatment purposes (both potential and realized). 3. Proteins Amino acids can form long chains known as polypeptides (partially named for the peptide bond that forms between amino acids) that can become proteins on their own or in combination with other polypeptides. Proteins are found in muscle and therefore the meat of many animals. These large molecules fill many important roles in the body, inc luding strengthening bones, acting as hormones, cellular structure, and as important participants in cellular signaling. Protein is an important part of the animal diet, as it is broken down and used to form other compounds such as the amino acids that make other proteins. Some