Business Communication Essay

1) Discuss the scope of business communication? a12 a11 State the principles of business communication? a12 Draw communication process? Discuss the importance of business communication ? s12 What are the principles of business communication? discuss any three of them ? s12 a11 Mention the ways of improving the effectiveness of communication ? a11 Discuss the characteristics of effective communication ? s11 Discuss the process of effective communication ? s11 Mention the 7e’s of business communication ? s11 2) discuss the types of communication ?a12 explain downward communication with advantages and disadvantages ?a12 Discuss the different situations for considering the written communication as an effective tools? a12 What are the merits of downward communication ? s12 define horizontal communication? briefly discuss the forms of horizontal communication?s12 s11 distinguish between oral communication and written communication ? s12 mention the different means of non-verbal communication with examples ? a11 briefly discuss the forms of upward communication ? a11 discuss the merits and demerits of written communication ? a11 State the demerits of oral communication ? s11 Discuss the merits of downward and upward communication ? s11 3) What are the barriers to communication ? a12 Write a memorandum asking the employees to use the canteen only during the fixed hour ? a12 Suppose you are a manager of ABC company , write a notice informing the employees about the change in office timings during the Ramadan ?a12 Draft a memorandum to the office staff emphasizing the need of observing punctuality and adhering to lunch hour ? s12 As a secretary of business club , DBA at permanent campus write a notice to arrange a monthly Executive Committee meeting ? s12 Briefly discuss the parts of a Business Letter with example and its specimen ? a11 s11 Suppose you are a manager of AB Bank Ltd. , CDA avenue. One of your officer , Mr. Abul Kalam has got a promotion as a senior officer, write a letter to congratulate him. A11Â  Define informal communication. discuss the four predictable pattern of informal communication network ? s11 What are the difference between the formal and informal communication ? s11 Briefly explain the different forms of non verbal communication ? s11 4) Why business letters is different from personal letters ? briefly discuss the guidelines for writing a social letters? A11 As a sales manager of Otobi Furniture Pvt. Ltd, write a letter of regret to one of your corporate clients by explaining the reasons of delay delivery of their ordered products . a12 Suppose one of your colleagues has been awarded as the best employee of your organization, draft a letter of congratulation to him . a12 As a sales manager of BSRM steel , write a letter of thanks to the purchase manager of Sanmar Properties Ltd for their large order ? s12 As a manager of Dhaka Bank Ltd Agrabad Branch , write a letter of appreciation to Mr Zakir Hossian – One of your sales executive for his outstanding performance to fulfill the target of bring tk 35 lac as a deposit. S12 Suppose you are a Sales Manager of Credit Card Division of EBL.. one of your sales executives has shown good sales performance by fulfilling his monthly target. Now write a letter of appreciation to recognize his well performance . s11 Short notes: a11 Process of business communication Formal group vs. informal group Grapevine Barriers of effective communication Sketch the types of business communication

Eliza’s Transformation in Pygmalion by George Shaw Essay

In the play Pygmalion by George Shaw, Eliza experiences a type of transformation. Before Eliza first encountered Mr. Higgins, she was a dirty, improper, poor young girl. During her time with both Mr. Higgins and Colonel Pickering, Eliza did change. Her change seems so go in somewhat of a cycle, however. For the fist few weeks of her stay she questioned everything that Higgins asked her to do. She simply was unable to see how they would help her. Later, Eliza begins to understand that even though Higgins’ ways are so harsh, he is doing his best to teach her and he deserves some cooperation. After the ambassador’s ball, we see more of the old Eliza because her task is finished. She starts to worry again, and since she has grown attached to Higgins and Pickering, she is so upset that they still see her as something of little value. Eliza’s upper-class speech and manners can be observed, but her inner confidence is what changes the most. In the beginning of Higgins’s study, Eliza feels that she has to impress Higgins by making sure he knows that she arrived in a taxi. Eliza does not understand Higgins’ personality at first and feels like he is being specifically mean to her. During her lessons, Eliza is worked so hard she begins to regret allowing herself to put up with Higgins as a teacher. Her hatred towards the man disappears a little bit when she realizes that she can only accomplish her dream of working as a lady in a flower shop if he is shapes her into a lady. She tried to hide the anger built up because of Higgins and think of him as more of a friend. She does not realized at first that Higgins takes pride in his work and not his student. She soon realized that Higgins’ investment in her was merely a tool used to enhance Higgins reputation in society. Higgins showed no appreciation towards Eliza as he repeatedly boasted about his success, and he not once acknowledged her. Higgins was able to transform Eliza into a lady, but what he did not realized was that he had slowly been making Eliza a stronger person. During the process, his constant beating on Eliza made her realize that she did not deserve his disrespect. She begins to stand up for herself and believe in her worth. This is illustrated in Eliza’s throwing the slippers at Higgins. Eliza finally stands up to Higgins and does it in a bold way. Higgins was able to change Eliza. Originally she was an innocent girl trying to stay alive. Higgins through the introduction to a proper life-style had altered Eliza’s way of thinking. It was good for Eliza to become stronger as she did. At the end of the play, she becomes overpowering to Higgins, her beauty becomes irresistible as Higgins realizes that she is leaving. It took the threat of Eliza leaving for him to see his true feelings towards her. Eliza’s strength is shown the most when she is finally able to leave Higgins. She shows that she is able to take care of herself and does not need Higgins’ superficial changes to survive.

UNIT 5 Essay Example | Topics and Well Written Essays - 500 words

UNIT 5 - Essay Example Shoddy would be forced to comply with the terms of the agreement. This is due to the fact that Hoosier burg has been his territory for so long. He has a well-established clientele. Besides, he has those clients who are faithful to him and his comeback would sweep them all from the plaintiff’s shop. Another reason could be the fact that the sold shoe repair shop has not had a change of name. This somehow still gives Mr. Shoddy an upper hand in the business. As this contract is in place and after its end or stoppage, Bob Bobswell accepts to maintain the confidentiality of WABC’s details such as list of clientele, company operation modalities, or any other private matters. Bob Bobswell accepts to take proper care not to spill out anything accidentally (Emerson, 2009 p.145). It is important to note that, privacy and confidentiality prevents your competitors from knowing your operations therefore increasing your chances. As this agreement is still binding, the respective employee will work to perfection in their quest  to execute their duties diligently as a news anchor whilst keeping to the agreed terms and conditions. It is important that employer pledge commitment to competent service by the employee. WABC willingly accepts to pay Bobswell US$ 100000 in case of any damages. This is in respect to the assurance of compensation by the employer in case of any incident. At the end of this agreement, Bob Bobswell agrees not to engage in a similar venture as WABC for a period of one year around a distance of 50 miles of WABC in New York (Emerson, 2009 p.539). This is in respect to the assurance to the employer that his/her tactics will not be used against him/her. In case WABC fails to commit to its promises, the above conditions will no longer be binding. Rivalry means engaging in any other television venture with like interests. Bob Bobswell agrees to compensate an amount of US$100000 for failure to keep to the terms of this

Thorntons PLC Strategic Analysis Assignment Example | Topics and Well Written Essays - 4000 words

Thorntons PLC Strategic Analysis - Assignment Example Thornton's PLC has 230,000 employees world-wide and operates 520 factories in 82 countries. Thornton's PLC fundamental social impact is to improved standards of living among millions of people through creation of productive, sustainable economic development. Thornton's PLC brands showed the strongest growth, currently posting sales close to 700 million liters in over 20 countries. Thornton's PLC leadership is concentrated in Europe (regions where economic risk is limited, incomes are high and growth prospects are robust) through the development of strong brands, the HOD business, and acquisitions that offer real opportunities for synergy. In 1999 Thornton's PLC operated from 509 factories worldwide, 424 are in special chocolates and toffee products. Special chocolates accounted for 28% of 1999 revenues; 26%; chocolate and confectionery, 54% are in toffee. With a net profit of 4.724 million, up 12.3 percent over last year, and with significant, broad-based improvement in all major performance indicators, Thorntons PLC looks back on a record year 1999. The net profit margin reached 6.3 percent (5.9 percent in 1998) on consolidated sales of 74 660 million (1998: 71 747 million). The trading profit of 7 914 million increased by 11.8 percent, a margin of 10.6 percent of sales (9.9 percent in 1998). EBITA (Earnings Before Interest, Taxes and Amortization) improved by 12.4 percent to 8 298 million (1998: 7 382 million). These substantial improvements reflect a series of measures taken over the past years, touching virtually all activities (Mitchell, 2002). Streamlining the business portfolio, increasing operational efficiency, industrial restructuring and progress in purchasing and supply chain management enabled the Group to achieve higher profits, margins and return on invested capital. Thornton's PLC also made the necessary investments to ensure future top-line growth by investing in new products and strengthening its brands and market shares. During the first half of 2000, Thorntons PLC achieved a significant increase in both sales and profit margins. Table shows that consolidated sales grew by 9.9 percent to 38.8 billion, with real internal growth accelerating to 4.5 percent, compared to 2.1 percent in the same period of 1999. Trading profit amounted to 4296 million. This represents 11.1 percent of sales against 9.8 percent for the 1st half of 1999. Net profit increased to 2798 million or CHF 72.7 per share, resulting in a net profit margin of 7.2 percent (5.9 percent in the first half of 1999). The strong sales performance reflects the Group's emphasis on internal growth. The margin improvements result from progress achieved in enhancing operational efficiency, the streamlining of the Group's product portfolio, industrial restructuring and some lower raw material prices which were able to offset higher packaging costs. Internal Growth and Currencies Push Up Sales Consolidated sales, at 38.8 billion, were up 9.9 percent. At comparable structure (excluding acquisitions and divestitures) and at constant exchange rates, sales rose by 4.9 percent (see table 1). Table 1. Thornton's PLC Figures for 1999-2002 Thornton's PLC Annual Report 2002 2001 2000(e) 1999(f) In millions of CHF (except for per share data) Consolidated sales 89 160 84 698 81 422 74 660 71 747 EBITA 10 940 9 987 9 911 8 700 7 606 as % of

Effects in Adult Diabetics Participating in Anaerobic Exercise versus Annotated Bibliography

Effects in Adult Diabetics Participating in Anaerobic Exercise versus Strength Training Exercise - Annotated Bibliography Example Anaerobic exercise can use glucose in the absence of air, and this type of exercise results in muscles that develop differently than another exercise. Some examples of anaerobic exercise are spinning, jumping or sprinting (Train with me, 2012). Strength training can also be considered anaerobic when done in high intensity through most strength training programs are of low to moderate intensity and remain aerobic. Strength training exercise is thought to promote strength while developing flexibility (Spaulding, 2012). Strength training is known to help protect the health of bones and decrease and reverse muscle loss. Strength training involves contracting of muscles against a resistant force. Exercises that are considered strength training are push-ups, stair climbing, and weight lifting. The importance of exercise is recognized in diabetic blood glucose control. Each type of exercise burns energy differently, affecting the body’s blood glucose levels. The research will help decide which type of exercise is most beneficial in controlling their glucose levels. Dijk, J. V., Manders, R., Tummers, K., & Bonomi, A. (2012). Both resistance- and endurance-type exercise reduce the prevalence of hyperglycemia in individuals with impaired glucose tolerance and in insulin-treated and non-insulin-treated type-2 diabetic patients. Diabetologia, 55(5), 1273-1282. do: 10.1007/s00125-011-2380-5 The methodology used in this research study was statistics and data analysis. There were 45 participants. 15 were men with IGT and 30 men who were diagnosed with type 2 diabetes. None of the participants had renal failure, liver disease, morbid obesity, hypertension or a history of serious cardiovascular problems. Written consent was obtained from each participant.  Ã‚  

Learning Team Paper Essay Example | Topics and Well Written Essays - 250 words

Learning Team Paper - Essay Example This paper shall seek to answer that question. In the case of the supply chain, there has to be a critical look at ones suppliers. The company deals with material of a delicate nature and one must ensure that the suppliers also adhere to the highest standards possible. The molding company must also manage its supply chain such that so as to only undertake the tasks that are logistically sound. In other words, the supply chain must function at optimum capacity. Capacity management is also critical. The final expected return from the sale of the health parts should determine the necessary capacity. The company must ensure that the right numbers of people are at hand for a specific product. Some products are used in large numbers and so the target market shall determine the necessary capacity in that case. Excessive capacity will underutilize the workforce and lead to overproduction. Lean production is not to be ignored either. The engineer should be close to suppliers so as to minimize on transport costs. The watchword as far as lean production is concerned is waste. Cutting wastage of raw materials, wastage of stock and time wastage before delivery must be cut. After all, these are medical products and they need to be produced

The Concept of Leadership in the media Essay Example | Topics and Well Written Essays - 500 words

The Concept of Leadership in the media - Essay Example Through research conducted at Fortune 500 companies, the issue of corporate social responsibility has been made significant. The research was conducted in relation to leadership issues and stated that companies more involved in corporate social responsibility were most likely to be morally irresponsible. As a way of supporting his argument, the article author gives examples of Enron and BP. Enron was involved in an accounting fraud scandal that cost its shareholders $ 11 billion while BP, which had held a safety record missed safety signs resulting in11 deaths. It is important for companies to maintain ethics and corporate social responsibility (Ormiston, 2013). Australian statistics from their national bureau of statistics show Women have accessed greater educational opportunities and employment opportunities. However in the property sector has not fully utilized the potentiality of the female gender workforce. Although there are few women employed in the industry, the Ernest and Young report also supports the evident view of gender inequality in that sector. The report further states that women are better financial performers compared to their male counterparts. The presence of male domination in a traditionally male industry points out the organizational setup is still in the developmental stages of achieving gender equality (Heaton, 2015). Intel Chief Executive is seen as visionary through investing in the improvement of its workplace diversity. Gender-related issues are still considered as contemporary issues in the present day organization as most companies have stuck to the traditional male domination. However, Intel’s Chief Executive has set a pioneering step in altering the workplace demographics by investing in the acquisition of female gender workforce. The three-year investment plan is set to change the

Interviews on Reform Assignment Example | Topics and Well Written Essays - 2000 words

Interviews on Reform - Assignment Example This type of community is comprised of mainly adults. Public schools provide an opportunity to meet and interact at different negotiation points. It becomes easy for students to interact with individuals from diverse values and backgrounds. Public schools comprise of students with a diverse range of abilities and disabilities. The backgrounds provide individuals from different cultural, ethnic and socioeconomic background. The diverse environment exposes the students to different levels of interpersonal and communication issues. The numbers of students in a public school provide students with a different environment as compared to that provided by home schools and private schools. Students are able to engage in team projects and competitive sports with a diverse platform (Turnbull, Turnbull, & Wehmeyer, 2008). What are the major problems in need of reform or improvement? The public schools are faced with challenges that require reforms. Schools face challenges ranging from the struct ure, curriculum, the school’s mission, experiences and specifically. The first problem faced by American public schools is the school size. 70% of schools in America have an access of up to 2500 students. This compromises the quality of education received by students. The ration of students to teachers is as large as 100 students per teacher. Minimized attention comes with high dropout rates due to the overcrowding problems. The issue of the public curricula also comes as a concern for the reformists. The structure of the public schools curricula fails to impart on the academic and knowledge skills. To improve the structure, the schools require improvement on the subjects provided, including the period taken to complete the curriculum. The missions of schools have hindered the progress of school improvements. The mission of public school is to prepare the students to adopt into the high school curriculum. Interdisciplinary units and lesson plans increase in complexity on an a nnual basis. In relation to curricular demands, student diversity and accountability, the lesson plan and activities are bound to change. Working on Social Studies, Technology, Art and Drama curriculums indicate a better diversity for the students. The curriculum demands for new state frameworks that require continual change. Standardization tests set through district policies dictate the instruction methods used and how they address the needs of English language learners. Linguistics of English come with a diverse implication in designing programs intended to range the learners according to their abilities. The importance of targeting a certain population while outlaying the lesson plan depends on various aspects. The rationale on interdisciplinary aspects while setting a lesson plan needs to consider different aspect including the language and culture, learning styles, active participation, learning strategies in specific areas of the lesson, development of thinking skills and tra nsfer process, student empowerment and parental involvement (Turnbull, Turnbull, & Wehmeyer, 2008). Recommendations: What do you think will â€Å"fix† the problem? Learning styles Learning styles involve using sheltered language while implementing learning strategies. It allows students to develop the subject matters through English language. Through using different learning styles, teachers apply comprehensive lessons aiding in the

Unit 4 Discussion Social Problems Research Paper

Unit 4 Discussion Social Problems - Research Paper Example In my view deterrence, which is the prospect of unpleasant punishment that will put people off with the idea of committing that crime (Corbett, 2005), seems to best fit upon the criteria and objective of punishment. Deterrence helps achieve the objective of punishing the offender of the crime that has been committed and also may help avoid future such action. The condition that lies with it is that it should be effective enough. In my view, the most ineffective punishment is incapacitation. Incapacitation may be severe in terms of the punishment the offender is entitled to receive plus it may infuriate the offender such so he would increase the severity of crimes after being released, in order to retaliate. Juveniles get involved in crime due to drug addiction, bad company, peer pressure, bad relations with parents, and lack of supervision (Saminsky, 2010). Juveniles cannot be punished directly as opposed to males, as most of them do not know the severity of the crimes they have committed. They have to be treated and rehabilitated (Samaha, 2006), so they may lead a better

Analyzing Garret Harding’s Article Essay Example for Free

Analyzing Garret Harding’s Article Essay This paper seeks to analyze the article â€Å"The Tragedy of the Commons† by Hardin (1968). The first part summarizes the main thesis by identifying the principle or principles that Hardin used to explain the Tragedy as he defines it. The second part describes how Hardin’s thesis would apply to production of smog pollutants in California. 2. Summary and Application 2. 1. Summary The paper article talks about the tragedy of the commons which has contradicted the â€Å"invisible hand† that was described by Adam Smith that would managed things for people by just allowing man’s selfishness to keep on profiting without realizing that the same could be helping people in the process. The tragedy of the commons is therefore preventing the operation of the market or certain individuals from fully attaining what is good for these individuals because of the inevitable overpopulation. However the author has also acknowledged ways or factors under which the tragedy of commons could be neutralized such the existence of private property in support of that man’s selfishness in accordance with Smith’s theory. He also mentioned other factors that may have either supported to weaken the tragedy of commons. He therefore still sees a solution to the tragedy, which is the relinquishment of freedom to breed by the commons. Such can be done by some intervention of those who have the power like the state. The thesis of the Hardin (1968) further asserts that the problem on overpopulation has no technical solution for there is nothing to maximize. He noted the fact the people are concerned about the problem of overpopulation and that the same people would try the ways to avoid the evils of such situation but without giving up the pleasure that they have now. The author asserted the fact the people would want to make everything possible where plans could be growing or developing any source of food that will solve the problem caused by the overpopulation. Hardin asserted about the absence of technical solution to the problem as in winning the game of tick-tack-toe. He concluded that the simplest summary of the analysis of man’s problem in population is that the commons could justify their existence only under conditions of low-population density. Thus he argued that given the fact the population has increased, these commons have to be abandoned in one aspect. According to Hardin, the first way to abandon them can be done food gathering, enclosing farm land, restricting pastures and in hunting and fishing areas. He also saw the commons as a place for waste disposal that would justify their abandonment. Since the author also values human freedom preservation, it was his position that to preserve and nurture the more important kinds of freedom, the solution is to give up the freedom to breed from these commons as soon as possible. 2. 2 Application to the Production of Smog Pollutants in California This part of the paper will define â€Å"Commons† in the case of the smog pollutants in California as those people that may be part of the creating the problems of smog pollution in California, who may or may not be aware of the solution or cause of the problem. Individuals or non-commons may be those that are not part of the common which could be exemplified by the group described by Hardin which espouses the relinquishment of freedom to breed in order to arrest the tragedy of overpopulation caused and who believes that there are no technical solutions to problem. Since the case of pollution is related to overpopulation which according to Hardin has caused the problem, the non-commons extends their argument in this part that opt to give up still the freedom to breed for commons. This part describes also the problem in terms of the different view from the commons, the non-commons or individual In terms of the commons, the problem of smog Production is a problem that could be technologically solved. Hence these commons would argue for the need for the production of cars that would be equipment of the capability of reduced or smog pollutants (Vannijnatten and Lambright, 2001; Dooley, 2002)). This could be evident in the case of what is being required now of new cars from California. Newer cars starting with 2009 model will be required to have label that contains a level as to tier ranks in terms of environmental impact. The information is designed to provide consumers with the practical information that could contribute to their being responsible decision makers in the use of environment friendly vehicles while satisfying or meeting the needs of these people to move around (Environment News Service, 2009). The label used for environmental performance will include a scale of 1-10 for global warming scores and smog score. The higher score on both scales will show that the car is more environment friendly car. With average normal score of 5 on both scales, the values of the decision makers will also show how they will value the environment will also be reflective of scores recorded (Environment News Service, 2009). Electric cars are noted to earn higher ratings than non-electric cars on both score thereby indicating the role of technology (Environment News Service, 2009). This would provide a strong argument against that of Hardin (1968) that there is no technical solution to the problem. It could be argued that electric cars evolved from gasoline cars and therefore consumers may be deemed to have become more responsible to the environment. In terms of the individual interests, as espoused by Garrett Hardin (1968), the solution is non-technical that one can never minimized or maximized that point where there could acceptable smog pollutant level. From this view, the problem comes from the commons in the case of production of smog pollutants and not from non-commons which do not see themselves as part of the problem. Hardin’s viewed that there are indeed people causing smog pollutants in California which may not be prevented from having better cars due to the bias that there is no technical solution to the problem. The solution could not be found therefore under the principle developed as viewed by commons that more efficient cars could be produced but rather in stopping the freedom to breed commons which will prevent the problem created in the production of smog pollutant in California. Hardin under his own view would rather therefore go for stopping the breeding of the commons who keep on violating the rights of individuals because of the enclosures or certain advantages or favors given to these commons. The solution could include calling for government actions to deny seeming shout for more rights and liberties by the commons. In the article on Tragedy of the commons, Hardin (2008) also attacked the fact that every favor given to the commons is a deprivation of somebody’s personal liberty. He argued that while infringements made in the past could be accepted by him and the believers of his cause, he could only now see the abuse of infringement made because of the cries for rights and freedom are made by commons. He saw the benefits given to the commons are a way of robbing against the non-commons. He further saw only universal ruin if the logic of the commons would continue to be upheld. For this purpose the author saw only the need for true freedom that is based on recognition of necessity. If this principle is applied to the smog pollutants in California, Hardin would see hopeless of having smog free cars and that the cost of regulation for smog free cars could only be caused by the commons. If Hardin’s position is to be sustained, this would amount to prohibiting rather the commons to not having cars any more by government actions since these non-commons would not want to share life with the commons who will eventually cause overpopulation. Hardin (1968) also argued in the article that the most important aspect of necessity is the present need to recognize the necessity of abandoning the commons in breeding. Since he saw the absence of technical solution to the problem the misery of overpopulation would necessarily come along with all related evils. He posited that freedom to breed will bring ruin to all. In effect, Hardin would want to address still the issue of overpopulation since all the issue of pollution according to him is also cause by population. In terms of collective interest, people need to co-exist together whether commons or non-commons because they only live in one land surface the earth which provides life for everybody. The right of co-existence happens because the ethical theory of social justice demands that one must practice what is just and fair to everybody concerned. To have peaceful-coexistence, there must be an intention of each of the commons or the individuals to sacrifice some of their rights for the survival of both. The resulting conflict, if not solved, will put humans into a level of what is contentious as instinctively, the instinct for survival is as old as life itself (Fikes, 2001). Each person whether common or non-common has rights and obligations to discharge if each is to live together harmoniously. While it is true that smog production would be dangerous to the environment and the common may occupy a bigger share in the total number of the population, it could be easily accepted that they could be wipe out on earth so that only the non-common shall live. To determine whether indeed a technical solution is possible, there is a need to understand the nature of smog which is a kind of air pollution caused them the petrochemical reaction of sunlight with volatile organic compounds and oxides of nitrogen when released into the atmosphere. The same is therefore normally observed in automobile operation. To attain smog free objective, California used smog score by ranking each vehicles pollutant’s levels in terms of non-methane organic gases and oxides of nitrogen in relation to other vehicles within the current model year. Within the scale of 1 to 10, the California scale assigns 10 to be the cleanest while the average score 5 (Environment News Service, 2009). This could therefore testify to the creation of technical solutions that would solve the problem of smog production in California. This again will provide strong argument against the position taken by the Hardin (1968) on the absence of technical solution. Another proof of this evolution in technology is in the light of the belief that car model before 2006 would fall below the smog score of one. An action for more stringent standards must be viewed as a way of creating solution that would satisfy the collective interest of both commons and non-commons. The fact of smog inspection involves knowing whether Hydrocarbons, Nitrous Oxides or Carbon Monoxides (SmogTips, Inc, 2009) are present since these chemicals are identified for the production of smog. The fact the human knowledge has identified these chemicals from a long list of other known chemicals must speak further as evidence of technical solution to the problem of pollution. 3. Conclusion This paper concludes that the thesis of Hardin (1968) on lack of technical solution to the problem of smog pollutants in California is not rue. This paper has found moves in California to control the production of smog pollutants. The thesis may have raised some points that consider in effect the tragedy caused by the commons where the author has even attacked the theory of universal human rights. The view of the author is in favor individualist orientation and subscribes to the ideal of selfish genes. However, as society has evolved, the individualists have lived together with the commons for centuries and although the position of Hardin may be logical at some points, this paper takes exception to the assertion that there is no technical solution to problems. There is a solution because humanity is forever looking for ways to solve its problems whether the scientist may come from commons or not. References: Dooley, E. (2002) Fifty Years Later: Clearing the Air over the London Smog; Environmental Health Perspectives, Vol. 110 Environment News Service (2009) New California Cars Display Smog, Global Warming Scores, {www document} URL, http://www. ens-newswire. com/ens/jan2009/2009-01-02-092. asp, Accessed January 29, 2009 Fikes, T. (2001) Evolutionary Psychology as Computational Theory in the Cognitive Sciences; Journal of Psychology and Theology, Vol. 29 Hardin, Garrett (1968) â€Å"The Tragedy of the Commons†, {www document} URL http://www. sciencemag. org/cgi/content/full/162/3859/1243, Accessed January 29, 2009 SmogTips, Inc (2009) How to pass the California emissions test. 3-Part Test. , {www document} URL http://www. smogtips. com/passing_inspection. cfm, Accessed January 29, 2009 Vannijnatten and Lambright (2001); North American Smog: Science-Policy Linkages across Multiple Boundaries Canadian-American Public Policy

Nanostructure Optical Biosensors

Nanostructure Optical Biosensors 5.1 Mach–Zehnder nanowire biosensor for detection of E.coli Silica nanowires [208] offer several advantages over other types of nanowires since they are based on materials used in the most important photonic and opto-electronic applications within the visible and the near-infrared ranges and as a result their optical properties are familiar [209]. Light guided along the optical nanowire leaves a large fraction of the guided field outside the wire as evanescent waves [210], [211] making it highly sensitive to the index change of the surrounding medium. Phase shift of the guided mode caused by index change of the surrounding medium is used as a criterion for sensitivity estimation. Our simulation shows that optical nanowire waveguides are very promising for developing high-sensitivity optical sensors of significantly reduced sizes. In the aforementioned work, changes in the optical field profile, the power confinement, and the propagation constant of the guided optical mode along the sensing arm have been studied. In the present work, the aforementioned structure has been analyzed using the more rigorous and versatile FEM approach and the variation of the effective index; the optical power distribution of the guided optical mode in both the reference and the sensing arm of the sensor have been studied, by optimizing the sensitivity of important silica nanowire parameters, such as the fibre core diameter, the specimen refractive index, the wavelength, and the temperature. 5.2 Mach–Zehnder based sensor structure The proposed Mach–Zehnder-based biosensor system is formed by using two uniform silica nanowires: one used as a reference arm and the other as a sensing arm is presented in Figure 5.1(a). Both arms are immersed in aqueous solution and the surface of the sensing arm is silanized and biomodified with specific receptors for higher selective detection. A layer around the wire is formed by the complex of chemical linker, antibody and E.Coli respectively as shown in the cross section of the composite waveguide in Figure 5.1(b). The chemical linker is MUDA [mercapto undecanoic acid], its RI is 1.463 and thickness is 1.69nm and is used as linker for antibody (RI is 1.41 and thickness is 2.98nm) and the target antigen is E.coli with average RI of 1.37 and average thickness of 0.4 – 0.7 microns [212]. (a) (b) Figure 5.1: Schematic diagram of (a) the proposed sensor and (b) the cross section view of the composite waveguide, with a specimen layer. A probe light that is launched through the nanowire propagates through the first 3 dB coupler, operating as an optical splitter, which divides it between the sensing and the reference arms, and it finally recombines via the second 3 dB coupler, working as an optical combiner, as shown in Figure 5.1(a). The phase shift caused by the index change due to the specimen placed in the sensing arm is numerically calculated and evaluated from the simulated signal output of the lower nanowire, as presented in Figure 5.1(a). 5.2.1 Modal Solution Initially, the optical properties of the reference and the sensing arm of the single mode silica nanowires immersed in aqueous solution have been examined, where the latter is coated with the linker, antibody and E.coli under detection and the 3-D optical field profile of the mode of the two arms, for a core diameter, D, of 400 nm is presented in Figure 5.2. Figure 5.2: (a) 3-D field profile of the Hx mode for the reference and the sensing arm for D = 400 nm The refractive index of the single-mode silica nanowire and the aqueous solution were considered to be 1.482 and 1.355, respectively, at an operating wavelength of 325 nm [213]. As can be seen from the field profiles of the optical mode for a core diameter, D, of 400 nm, in the reference arm shown in Figure 5.2 (a), the optical field is more confined in the silica core and the aqueous solution does not have much effect on the field profile. However, for a core diameter, D, of 400 nm, in the sensing arm shown in Figure 5.2 (b) a small change in the refractive index profile produces a larger change in the field profile. As can be concluded evanescent field in the sensing arm expands more outside due to change of refractive index in the aqueous solution. The optical field confinement in the reference and the sensing arms can be better viewed from the normalized field profile along the horizontal (x)-axis, as presented in Figure 5.3 for nanowire core diameter, D, of 150 nm. As can be seen from the earlier curves in Figure 5.3, the normalized optical fields for the reference and the sensing arms have small variation in the optical field profile. Figure 5.3: Hx along the x axis for a fibre diameter of D = 150 nm. 5.2.2 Effective Index Variation Next, the variation of the effective reactive index of Hx11 in the reference and the sensing arms with the silica nanowire diameter, D, has been examined, and the results are presented in Figure 5.4. Here, the effective index of the reference arm and the effective index difference between the two arms is plotted against core diameter, over a range of 100 nm to 800 nm. As can be seen from the aforementioned characteristics, as diameter, D, decreases, the effective index also reduces, and the rate of reduction slowly increases. The effective index difference between the reference and the sensing arm is presented in Figure 5.4. It is shown in the Figure 5.1, the effective index difference between the reference and the sensing arm decreases with the increase of the core diameter. However, for a core diameter, D, of 100 nm, peak value in à ¢Ã‹â€ Ã¢â‚¬  neff is obtained and as the core diameter increases the effective index difference decreases. Figure 5.4: Effective index (ne) and effective index difference (à ¢Ã‹â€ Ã¢â‚¬  neff) between the reference and sensing arms as a function of the fibre diameter (D). The effective index of the sensing arm is higher than the reference arm. It is due to increase of refractive index in the sensing arm with the addition of linker, antibody and E.coli. It can be noted that as the nanowire diameter is increased, the effective index asymptotically approaches that of the Silica refractive index, when most of optical power is confined in the Silica core. The effective index is dependent on the refractive index of surrounding medium. Therefore, single mode nanowires are suitable for sensing elements and sensitive to the index change of the surrounding medium. Figure 5.5: Change in effective index (ne) and effective index difference (à ¢Ã‹â€ Ã¢â‚¬  neff) as a function of the wavelength (ÃŽ ») Next, the effective index for the reference arm and the effective index difference between the reference and the sensing arms are presented, with the variation of the wavelength, in Figure 5.5. As can be seen from the Figure 5.5, the effective index of reference arm decreases with the increase of the wavelength and the effective index difference increases linearly with the increase of the wavelength for core diameter of 400 nm. When the wavelength increases, the mode is weakly confined and penetrates more into the sensing region of the sensing arm hence increases the effective index. However, when the wavelength decreases, the mode is well confined and decays more into the core region hence decreases the effective index of sensing arm. 5.2.3 Power confinement Further, the power fraction in the aqueous solution for the reference and the sensing arm has also been studied with the variation of the nanowire core diameter and the result is presented in Figure 5.6. As can be seen from the aforementioned characteristics, for a core diameter, D, of 100nm the field extends mostly in the aqueous solution for both the reference and the sensing arms. However sensing arm exhibits more power in the aqueous solution than the power in the aqueous solution of reference arm. It is due to refractive index change in the aqueous solution of sensing arm when target antigen (E.Coli) is attached to immobilised antibody. As the value of D is increased further, the power in the aqueous solution is reduced since the field is more confined in the core region. Figure 5.6: Power fraction in aqueous solution for the sensing and the reference arms as a function of the fibre diameter (D). The change of the power fraction in the different regions of the sensing arm has been studied and is presented in Figure 5.7. As can be seen from the characteristics, shown in Figure 5.7, when the wavelength increases, the mode is weakly confined, and hence, less power is seen in the core region and more power is present in the cladding aqueous region. The mode is well confined for smaller wavelength values and more power is present in the core silica region. However, as the wavelength increases, the mode becomes weakly confined and more power is present in the aqueous solution region compared to the silica core region. Figure 5.7: Power fraction for the sensing arm as a function of wavelength for a fibre diameter of D = 400 nm 5.2.4 Effect of thickness Next, the change in the propagation constant ÃŽ ² of sensing arm and the power fraction in the aqueous solution of sensing arm as a function of the E.Coli thickness, for a core diameter of D = 400 nm, have been investigated and are presented in Figure 5.8. As the E.Coli thickness increases, both the propagation constant and the power fraction in the sensing arm decrease linearly. Figure 5.8: Change in propagation constant (ÃŽ ²) and power fraction in the E.coli with the variation of the E.coli thickness. As the thickness of E.coli increases the power fraction in the sensing arm and propagation constant of the sensing arm mode decreases with the increase in thickness of E.coli. This is due to the penetration of evanescent field into the sensing region decreases with increase of E.coli thickness. With the increase of sensing layer thickness evanescent field will not penetrate deep into the sensing region. However smaller nanowires with diameter of 100 nm and 200 nm may be used to penetrate more evanescent field into the sensing region. 5.2.5 Sensitivity The effective index change is produced either by a change of cover medium refractive index (homogeneous sensing) or by a change of thickness of E.coli which is immobilized on nanowire (surface sensing). Adlayer thickness and change of cover medium refractive index affects the effective index of the propagating optical mode. Measurement of sensitivity depends on optical field distribution in the sensing medium therefore the most important design task is to maximize the sensitivity of the biosensor. Figure 5.9 shows the change in effective index and waveguide sensitivity decreases with the increase in diameter, D, of silica nanowire. The larger effective index variation and waveguide sensitivity is achieved at a D = 100 nm. The greater the change in à ¢Ã‹â€ Ã¢â‚¬  neff more sensitive the biosensor will be. Therefore, when D = 100nm maximum index difference is achieved. When the nanowire dimension becomes too large, most of the power is confined in the silica core and a smaller effective index difference is achieved hence lesser sensitivity. Figure 5.9: Variation of effective index difference, à ¢Ã‹â€ Ã¢â‚¬  neff and waveguide sensitivity with Diameter, D (nm), of silica nanowire. When designing a sensor, the sensitivity is a very important parameter to evaluate the device performance. To study the sensitivity of our device, we use the sensor to detect the change in the effective index of mode with the change in the refractive index of surrounding medium. When there is an extremely small index change around the nanowire, the guided light is changed in its optical phase. We assumed the sensing area length, L = 75 µm. Calculated Δneff is about 0.0131/ÃŽ ¼m at the wavelength of 325 nm induced by coating the nanowire with E.coli layer for a 400nm diameter silica nanowire. Figure 5.10a: Sensitivity of the sensor as a function of the wavelength The phase shift (Δφ) of the sensing arm can be obtained as; (5.1) Where L is the effective length of sensitive area and Δneff is the effective index difference between the sensing arm and the reference arm, respectively. It is shown in the Figure 5.10a that the sensitivity of the device decreases with the increase in the wavelength and higher sensitivity of 697nm/RIU is achieved at wavelength of 325 nm. For comparison, the sensitivity of conventional Mach–Zehnder sensors based on integrated planar waveguides is much lower [209], showing that much higher sensitivity, or equivalently much smaller size can be achieved when sensing with silica nanowires. Figure 5.10b shows the variation of output power as a function of wavelength. MZI has two arms, one is used as sensing arm and another used as reference arm. The sensing arm is where the interaction between the biolayer and the optical signal takes places. After the propagation in these two arms, the two optical signals accumulate a phase shift Δφ. The optical power (Pout) at the exit of the interferometer is determined by the phase difference Δφ between the two waves at the junction which can be obtained as; Pout = 1+Cos Δφ (5.2) Figure 5.10b: Combined power as a function of wavelength, ÃŽ » (nm) In all variation of the wavelength, Δφ ≠  0, this is caused by the deposition of a biolayer around the sensing arm, therefore, the optical output power is different too in all variation of the wavelength. 5.3 Slot-waveguide biosensor for detection of DNA hybridisation. Slot waveguides present an interesting alternative when compared to rib or strip waveguide based biosensors where light is predominantly guided in the high index material. The light thus has little interaction with the biomaterial. This is a drawback for biosensing applications where small refractive index variations caused by biomolecular interactions are monitored. In case of slot waveguide, light is confined in a low index slot region sandwiched between two high index rails. Due to the discontinuity of the electric field at the interface between the rails and slot, a significant fraction of the electromagnetic field is localized in the slot. The sensitivity of an optical waveguide sensor relies on the amount of light in the medium to be sensed. Due to the increased amount of power confined in the slot region higher sensitivities will be achieved as compared to other waveguide based biosensors. Author of [128] has compared conventional slot waveguide, slot rib waveguides and Si wire for sensing of aqueous solution. However the work presented here is based on the slot waveguide micro ring resonation for the detection of DNA Hybridization binding of complementary DNA strands (targets) to DNA probes. Moreover we have calculated wavelength shift, device sensitivity, detection Limit, and power density and compared with the experimental work published in [214], [215], [216] and [217]. In the present work, the H-field Finite Element Method (FEM) based full-vector formulation is used for the solution of the TE and TM Slot Waveguide modes where the TE mode is highly confined in the slot region as compared to TM mode. In the FEM, a problem domain can suitably be divided into a patchwork of a finite number of subregions called â€Å"elements†. Each of the elements can have different shapes and sizes and by using many elements a complex problem can be accurately represented. In using the aforementioned approach, the field distribution in the transverse plane is obtained by the application of the variational formulation in the region. More recently, slot waveguide based biosensors have been investigated using Finite difference time domain method (FDTD) and Finite Element Method [218,219,220]. In the present work by optimising the slot waveguide parameters such as the slot width, guide width and guide height a compact biosensor is proposed. The aim of this work is to provide a novel comprehensive analysis defining the modal characteristics, effective index variation of ssDNA and dsDNA, surface sensitivity and power confinement in the DNA layer of a slot waveguide biosensor with a nanoscale cross-section, and in doing so, the effects of the critical size of such waveguide are also presented. To undertake such analysis, an accurate and numerically efficient vector-H-field finite-element method (VFEM) [221] is used to calculate the propagation constant, effective index, power confinement factor and the full-vectorial modal field profiles of the waveguide. The full-vectorial electric field (E) is also derived from the vector H-field obtained to characterize modal properties of such waveguides. 5.3.1 Slot waveguide structure Figure 5.11: Slot Waveguide Biosensor A slot waveguide is investigated for the biosensing applications. The slot waveguide is formed by two Si wires close to each other having nanometer dimensions as shown in Figure 5.11. Refractive index (RI) of silicon, silicon oxide and water is taken as 3.476, 1.444 and 1.31 respectively at an operating wavelength of 1550nm. The sensing structure is first coated with a linker layer (silanes) whose refractive index is taken as 1.42 [222] having a thickness of t=1 nm. The refractive index of ssDNA and dsDNA is taken as 1.456 and 1.53 [223] respectively. The thickness of the DNA probe layer is taken as n=8 nm and remains unchanged when binding of complementary DNA strands (targets) to DNA probes happens i.e., only refrective index changes from 1.456 (ssDNA) to 1.53 (dsDNA). A waveguide height, GH = 320 nm and high index region width, GW = 180 nm [128], slot width, SW = 100 nm, linker layer thickness of t=1 nm and DNA probe thickness of n=8 nm is considered for the initial simulation study. 5.3.2 Modal solutions In the study of modal field profile, the H-field based VFEM is used to obtain the modal solutions of such a waveguide. For this study, due to the availability of two-fold symmetry of the waveguide structure, only a half of the structure is considered, in which more than 80,000 irregular sized first order triangular elements have been employed to represent the waveguide structure. It takes about 2 minutes cpu time on a dual-core Pentium processor computer running solaris platform. Figure 5.12: Hy field of the Hy11 mode Figure 5.13: Hy Contour of Hy11 mode The structure supports both fundamental quasi-TE and quasi-TM modes. For the quasi-TE mode the Hy field component is dominant, and Hx and Hz are the nondominant components. The dominant Hy field component of the Hy11 mode is shown in Figure 5.12 for the waveguide width, GW = 180 nm and height, GH = 320 nm In its contour plot as shown in Figure 5.13 it is clearly visible that the modal confinement is much stronger in the slot region. Due to the large index contrast at interfaces, the normal electric field undergoes a large discontinuity, which results in a field enhancement in the slot region.

traglear King Lear as a Bradley Tragedy Essay -- King Lear essays

King Lear as a Bradley Tragedy      Ã‚  Ã‚  King Lear meets all the requirements of a tragedy as defined by Andrew Cecil Bradley.   Bradley states that a Shakespearean tragedy has to be the story of the hero and there is exceptional suffering and calamity slowly being worn in.   Also, the current time must be contrasted to happier times.   The play also depicts the troubled parts in the hero’s life and eventually he dies instantaneously because of the suffering and calamity.   There is the feeling of fear in the play as well, that makes men see how blind they are not knowing when fortune or something else would be on them.   The hero must be of a high status on the chain and the hero must also possess a tragic flaw that initiates the tragedy.   The fall of the hero is not felt by him alone but creates a chain reaction that affects everything below him.   There must also be the element of chance or accident that influences some point in the play.   King Lear meets all of these requirements, w hich have been laid out by Bradley.           Ã‚  Ã‚  Ã‚   The main character of the play would be King Lear who in terms of Bradley would be the hero and hold the highest position is the social chain.   Lear, out of pride and anger, has banished Cordelia and split the kingdom in half between the two older sisters, Goneril and Regan.   This is Lear's tragic flaw that prevents him from seeing the true faces of people because his pride and anger overrides his judgement.   As we see in the first act, Lear does not listen to Kent's plea to see closer to the true faces of his daughters.   Kent has hurt Lear's pride by disobeying his order to stay out of his and Cordelia's way when Lear has already warned him, "the bow is bent and drawn, make from the shaft" (act... ... Professor’s Comments      1.  Ã‚  Ã‚  Ã‚  Ã‚   When organizing your paper, instead of lumping all of the elements randomly into paragraphs spend a paragraph discussing each one.   By spending a paragraph on each element you can fully look at each element separately, discussing why that element is important to the development of tragedy and to this particular plot.   However, because you have so many elements listed, it would be impossible to spend a well-developed paragraph on each one.   Therefore, take three or four elements that you feel are the most important and write your paper on them.   You do not have to discuss every element.   For example you could write your paper discussing the tragic flaw, the element of chance and the ultimate fall of the tragic hero.  Ã‚   2.  Ã‚  Ã‚  Ã‚  Ã‚   When quoting you need to cite the act, scene and line numbers from the play.         

The Effects Of Anabolic Steroids :: essays research papers

The Effects of Anabolic Steroids   Ã‚  Ã‚  Ã‚  Ã‚  You've seen them, and you thought you knew what was going on. The muscle-heads at the gym, the all-star basketball player, the amazing offensive tackle, and the lightning fast swimmer. All of them used steroids, and you knew it. They were all unnaturally strong, and looked like gods. But what you could not see is the terrible side effects which come through the use of anabolic steroids. These powerful drugs have both positive and negative results from their use. Along with increased strength and size, users of steroids suffer from ailments like cancer, bad acne, hair loss, damaged organs and intense mood swings.   Ã‚  Ã‚  Ã‚  Ã‚  Anabolic steroids are a group of muscle building chemicals, which are synthetic versions of the male hormone, testosterone. Developed in 1935 they were prescribed to aid in muscle and tissue repair by those who had undergone surgery or had degenerative diseases. Now they are used by athletes and patients alike. But they are illegal to use if not prescribed by a physician, and have been banned by nearly all athletic organizations, both professional and amateur.   Ã‚  Ã‚  Ã‚  Ã‚  When you think of someone who uses steroids you typically picture someone who is massive, and whose muscle mass is very well defined. A picture comes to mind of the giant body builder, who is so big he can't touch his back because his biceps are in the way, but he can manage to bench press his car. The possible growth and development is amazing. With much less work necessary, the results can be astounding. Athletes can get bigger, stronger and faster, with less effort than previous. The limits of an athletes potential with steroids seem to be unbounded. These are the positive aspects to the use of steroids. One study showed that as much as ten pounds of lean muscle mass could be gained by a mature adult using steroids over a years period. The resulting size and strength increase would be greater more easily attained than without use of steroids.(Taylor pg 45) Also, the type of body structure that may males are looking for can be easily obtained through the use of steroids. Large pectoral muscles, as well and big biceps and a well defined stomach are what many teenage users are after. Society dictates what the current trends are, and our society has dictated that athletic looking men (and women) are in. But not everyone can be so fortunate to have a beautiful body with their given gene pool. So through the use of steroids, people can attain the wonderful body that they so desire. One ex-user commented that after he had used steroids and bulked up,

American Economy in Today’s World Essay -- essays papers

American Economy in Today’s World It is often wondered how the superpowers achieved their position of dominance. According to time magazine, to be a superpower, a nation needs to have a strong economy, an overpowering military, immense international political power, and related to this, a strong national ideology. Three of the articles that impacted me the most were: As U.S. economy slows down, Profits Rise in Pressure on U.S. Owned Factories in Mexico Border Zone, and last but not least Poverty in American. There is no doubt that the American economy has change dramatically since the 1860’s. The article, â€Å"U.S. Economy slows down; Europe is on the Upswing,† shows that Europe will catch up to the United States in no time. According to The New York Times, the unemployment rate for European Union drop from ten percent to 8.7 percent in less than ten years; that is a growth of 2.3 percent. European markets have become more open and competitive and European companies have follow many Americans practices to help deliver better performance. European governments are lowering taxes, at least modestly. Wage increases have slowed to a edge and labor markets have become more flexible, as companies evade traditional job protection rules by hiring part-time and temporary workers. Christ Rendu, who analyzes European economy; disagrees with the study done by The New York Time. According to Dr. Rendu European economy will never surpass American economy. In any event, Eu...

Don’t blame the eater

Don't Blame the Eater, Blame the Eating Industry In terms of personal health, the borders of proper nutrition are similar to that of a jail cell. Zinczenko points outs the restrictive nature of food within modern day Am erica. A generalized point of view that can be taken from this is that the fast food industry is incredibly convenient and affordable for necessary needs to live and thrive in modern day America. Zinczenko brings in examples that involve personal experiences in his family, as well as an argument that the convenience and affordability issues a large health problem itself.While obesity can be seens as ither a personal or societal issue, Zinczenko proposes that the issue on obesity is a societal issue based on the circumstances of cheap-and-fast fast food restaurants, which is a reasonable claim based on Zinczenko's point of view. Affordable, efficient, and convenient food may help the population, however, it is a market based on unhealthy practices. The author elaborate s on the convenience in a matter of personal story, in which his choice as a fifteen-year-old would be â€Å"McDonald's, Taco Bell, Kentucky Fried Chicken or Pizza Hut† (Zinczenko 391).With this personal experience, he can sympathize with a population that needs fast food ecause he witnessed it as an â€Å"the only available option for an American kid to get an affordable meal† (Zinczenko 392). Luckily enough, the author managed to reach to college and fix his eating habits. He is reaching out to a vast population that shares a similar experience or lifestyle, which encompass a large amount of people, thus creating a personal approach to the topic of obesity. Along with his noted personal experience, the raw statistics and facts about obesity back his claim on fast food being a primary catalyst for obesity in America.Driving down the block to eat healthy is a bit of a stretch when there are â€Å"more than 3,000 McDonald's restaurants† in the country (Zinczenko 392). The crippling statistics under the cases of obesity since 1994 also carry a charming state of nausea and face-melting characteristics: diabetes now had more than one cause. Childhood diabetes was generally caused by genetic disorder before 1994, with only a 5% statistic being obesity-related. Today, obesity-related diabetes â€Å"accounts for at least 30 percent of all new childhood cases of diabetes in this country' (Zinczenko 392).The calorie counts in fast-food salads can ascend to â€Å"around 1040 calories,† and it is vidently hazardous when a salad can cost you â€Å"half of the government's recommended daily calorie intake† (Zinczenko 393). Obesity, on an objective point of view, is a developing problem due to the efficient and affordable nature of fast food. The author mentions his personal experience with fast food and how it is a problem beyond personal preference, and my personal experiences lead me to fully agree. With this in mind, fast food is a ve ry efficient source of food to me.With a hectic lifestyle or even a hectic household, fast food can be one of the few places to go. I do not have all the time in the world to get a proper source of nutrition. School and work constitute my time on a daily basis, and in that case, fast food helps relieve that time in order to focus on the priorities in my life. My source of coffee in the McDonalds, other gas stations) and my quick source of mediocre nutrition. In this day and age of living, food is not a big priority to people, it is always there at convenience.There is no time to worry about what you are going to eat because there is a test or report for you to do in class, or you have to make it to work on time; ime is very limited and restrictive. I can sympathize with Zenczenko's point of view on the need for fast food in a hectic lifestyle. Not only does the author mention the social stigmas that surround fast food and obesity, but also the crude facts that are the nutritional va lues of fast food and its impact on obesity.Although I do carry a hectic lifestyle, in which my go-to source of food would be a fast food place, it carries significant stress and impact on my life. Over the past school year, with work and school, my usual breakfast would include a Monster energy drink and a McChicken from McDonalds. Though this did not affect my weight, it affected my productivity. No physical withdrawals were the side effect but I was absent-minded to my convenience food intake that let me make it throughout the day.The author points out physical consequences of convenient food; however, I faced psychological and mental consequences when eating convenient food. Zunczenko proposes a very thoughtful understanding to the nature of obesity. The author constitutes the matter of obesity as a societal issue because of convenient food rather than a personal stigma. Our society hosts more than 13,000 McDonalds n its land, and since we continue to trade our money for their i nstant sustenance, I do agree that obesity is a societal issue.Expedient food helps shape the busy and it is good for the quick knick of hunger, but it is not good for the healthy nutrients our society actually needs. The convenience and affordability of â€Å"food† from the fast food industry is the convicted criminal that is building bad health habits and furthering obesity in todays society. Works Cited Zinczenko, David. â€Å"Don't Blame the Eater. † They Say, I Say. Gerald Graff and Cathy Birkenstein. New York: W. W. Norton ; Company, Inc. , 2012. 391-394. Don’t Blame the Eater David Zincked up to the point that we have to take ‘personal responsibility for our rise in obesity, I cannot agree that he targets his opinion on that fast food restaurants are to blame. In my opinion the personal responsibility is on the parents in how they choose to teach, guide or show by example on how to make healthy choices. Temptations are everywhere, our parents tell us not to eat dirt, so we don't so why is the choice of something healthy over Junk so difficult.Let us take for instance when our kids go off to school, majority of parents pack their kids' inches, usually consisting of a drink, sandwich, vegetable or fruit, and a small treat. It is when our kids are at home that parents tend to forget the healthy choice and choose the cardboard box processed foods, or the, pop in the microwave dinners, that are contributing to the obesity in their children.Convenience is not the healthy choice. Our school systems have also recognized the need for more healthy alternative s within their cafeterias offering the breakfast and hot lunch program making the overstretched, over committed parent comfortable with knowing that at least at school our kids are eating healthy. Vending machines have been thrown out, leaving little to no temptation. So should parents not do the same within their homes?So should we sue our parents for our obesity or the McDonald's down the street who is only trying to build their sales like any other department store? You don't need to count calories to know If something Is healthy. You should Just know that a hamburger and fries Is not the better choice compared to a salad and fruit drink. I say â€Å"teach your children that If they don't know what they are eating, don't eat It' ‘ Make the healthy choice and get outside!

H2 Chemistry Practice

SERANGOON JUNIOR COLLEGE General Certificate of Education Advanced Level Higher 2 CHEMISTRY JC2 Preliminary Examination Paper 1 Multiple Choice Additional Materials: Data Booklet Optical Mark Sheet (OMS) 9647/01 23 August 2011 1 hour READ THESE INSTRUCTIONS FIRST On the separate multiple choice OMS given, write your name, FIN/NRIC and class in the spaces provided. Shade correctly your class and FIN/NRIC number. Eg. If your NRIC is S9306660Z, shade S9306660Z for the item â€Å"index number†. There are forty questions in this paper. Answer all questions. For each question there are four possible answers A, B, C and D. Choose the one you consider correct and record your choice using a soft pencil on the separate OMS. Each correct answer will score one mark. A mark will not be deducted for a wrong answer. You are advised to fill in the OMS as you go along; no additional time will be given for the transfer of answers once the examination has ended. Any rough working should be done in this question paper. This document consists of 20 printed pages and no blank page. 2 Section A For each question there are four possible answers, A, B, C and D. Choose the one you consider to be correct. 1 A student added 10 cm3 of 0. mol dm? 3 KI (aq) to 10 cm3 of 0. 2 mol dm? 3 CuSO4 (aq) in a beaker and observed that a white precipitate in brown solution was obtained. She knew that if she were to add S2O32? (aq) to the mixture, the brown solution will be decolourised. Calculate the volume of 0. 04 mol dm? 3 S2O32? (aq) she should add to the mixture in the beaker in order to completely decolourise the brown solution. A B C D 2 12. 5 cm3 15. 0 cm3 16. 7 cm3 25. 0 cm3 Which of the following contains the greatest amount (in mol) of particles? A B C D 600 g of I2 (s) 50 cm3 of H2O (l) 50 dm3 of HCl (g) at s. t. p. 50 cm3 of 2. 5 mol dm–3 CH3COOH (aq) 3 An element, E can form a simple ion, E2+. Which of the following is the electronic configuration of an atom of E? A B C D 1s2 2s2 2p6 3s2 3p2 1s2 2s2 2p6 3s2 3p4 1s2 2s2 2p6 3s2 3p6 4s1 1s2 2s2 2p6 3s2 3p6 3d5 4s2 SRJC 9647 / 01 / Prelim / 2011 [Turn Over 3 4 In 1996, Professor Hoffman and a group of scientists discovered a new element known as Ununbium, Uub. An atom of Uub can be formed by the fusion of a lead nucleus with the nucleus of an isotope of element G as follows: 208 82Pb + G 277 112Uub + 1 neutron What is G? A B C D Cu Zn Ga Ge 5 Which of the following graphs correctly describes the behaviour of a fixed mass of ideal gas? V/m3 constant P V/m3 constant P T/ oC 0 B V/m 3 T/ oC A V/m 3 constant P constant P 0 C T/ oC 0 D T/ oC SRJC 9647 / 01 / Prelim / 2011 [Turn Over 4 6 Which of the following consists of three compounds with different types of structure? A B C D BeO, SO2, BH3 BeCl2, Na2O, SiO2 AlF3, MgCl2, BN AlCl3, Cu2O, SiCl4 7 Ethyl ethanoate undergoes hydrolysis in water in the presence of dilute hydrochloric acid catalyst. HCl CH3COOCH2CH3 + H2O CH3COOH + CH3CH2OH The rate of reaction was investigated by varying the concentrations of the ester and HCl. Experiment 1 2 3 [ethyl ethanoate] / mol dm-3 0. 10 0. 15 0. 10 [HCl] / mol dm-3 0. 20 0. 10 0. 10 Initial rate / mol dm-3 min-1 0. 096 0. 072 0. 048 Which of the following statements about the above reaction is correct? A B C D Half-life for experiment 1 is 0. 144 min. The rate equation of this reaction is rate = k[CH3COOCH2CH3][ H2O]. Tripling the concentration of both ethyl ethanoate and HCl increases the rate of reaction by a factor of 6 If the half life of ethyl ethanoate in experiment 1 is 5. 0 min, then the half life of ethyl ethanoate in experiment 3 will be 10. min. 8 When 2. 4 g of Na2CO3 was added to 50 cm3 of 1. 0 mol dm-3 aqueous hydrochloric acid, the temperature of the solution rose by 3. 2 oC What is the enthalpy change of neutralisation of this reaction? (Assume that 4. 20 J is required to raise the temperature of 1 cm3 of the solution by 1 K. ) A B C D ? 1. 34 x 104 J mol-1 ? 2. 97 x 104 J mol-1 ? 3. 11 x 104 J mol-1 ? 2. 56 x 106 J mol-1 SRJC 9647 / 01 / Prelim / 2 011 [Turn Over 5 9 The graph below shows how the percentage of products present at equilibrium varies with temperature and pressure. Percentage of products T + 20) oC T oC Pressure Which one of the following reactions could the graph represent? A B C D 2Fe (s) + C (s) + 3 O2 (g) 2 Fe2O3 (s) CO (g) H = ? 822 kJ mol? 1 H = ? 111 kJ mol? 1 H = +57 kJ mol? 1 H = +76 kJ mol? 1 1 O2 (g) 2 N2O4 (g) 2NO2 (g) CO (g) + Cl2 (g) COCl2 (s) 10 Given that the Ksp of Mg(OH)2 is 1. 5 ? 10? 11 mol3 dm? 9 and the Kb of aqueous C2H5NH2 is 5. 6 ? 10? 4 mol dm? 3, what is the solubility of Mg(OH)2 in 1. 0 mol dm? 3 aqueous C2H5NH2? A B C D 1. 64 4. 78 2. 68 6. 34 x 10? 4 mol dm? 3 x 10? 5 mol dm? 3 x 10? 8 mol dm? 3 x 10? 10 mol dm? 3 SRJC 9647 / 01 / Prelim / 2011 Turn Over 6 11 An experiment is set up as shown below: The E cell of the cell was monitored as time progressed. When a change was made continuously to the set-up, the graph below was obtained. E cell /V Time / s What was the continuous change made? A B C D Add nickel (II) chloride to the nickel half cell Add NaCN to the iron half cell Add water to the nickel half-cell Increase the surface area of iron immersed in the solution. SRJC 9647 / 01 / Prelim / 2011 [Turn Over 7 12 Aluminium alloys usually undergo a process known as anodisation to increase corrosion resistance and surface hardness. In this process, oxygen is formed and the gas reacts with the aluminium object to form a thick layer of aluminium oxide on the metal surface that protects the metal. A possible set up for this process is shown as below: Gases liberated Battery H2SO4 (aq) Aluminium object Graphite Which of the following statements about the anodisation of aluminium is true? A B C D Hydrogen gas and sulfur dioxide gas are liberated. Replacing the graphite electrode with copper will cause the reaction to cease. Anodisation is also possible when the aluminium object is connected to the negative terminal Water is oxidised at the anode to produce oxygen gas. SRJC 9647 / 01 / Prelim / 2011 [Turn Over 8 13 Consecutive elements G, H and J are in Period 3 of the Periodic Table. The trend of their second ionisation energies and melting points are shown in the graphs below. 2nd I. E. Melting point G H J G H J What could be the identities of G, H and J? A B C D Na, Mg, Al Mg, Al, Si Si, P, S S, Cl, Ar 14 Which of the follow properties of beryllium and its compounds is incorrect? A B C D Beryllium does not react with water. Beryllium oxide undergoes neutralisation with both acids and bases. Beryllium chloride reacts with ammonia in a 1:2 ratio. Beryllium chloride is insoluble in water SRJC 9647 / 01 / Prelim / 2011 [Turn Over 9 15 When concentrated sulfuric acid was added to solid potassium chloride, white fumes of hydrogen chloride gas was observed. The same observation was made when concentrated sulfuric acid was added to solid potassium iodide, but significantly less white fumes was observed. Which of the following explains the lower yield of hydrogen iodide as compared to hydrogen chloride? A B C D Iodine is less reactive than chlorine. Iodine is a weaker base than chlorine. Hydrogen iodide is less volatile than hydrogen chloride. Hydrogen iodide is more easily oxdised than hydrogen chloride. 16 Which of the graphs below show the variation in the volume of carbon dioxide gas collected when 1 mol of strontium carbonate and 1 mol of calcium carbonate are heated strongly? Volume of gas / cm3 Volume of gas / cm3 Time / min Time / min A Volume of gas 3 / cm Volume of gas 3 / cm B Time / min Time / min C D SRJC 9647 / 01 / Prelim / 2011 [Turn Over 10 17 Astatine is below iodine in Group VII. Which of the following properties is consistent with its position in the Periodic Table? A B C D Silver astatide is soluble in dilute ammonia. Astatine is a liquid at room temperature and pressure. Astatine reacts with aqueous Fe (II) to form Fe (III). Hydrogen astatide decomposes at a lower temperature than hydrogen iodide. 18 Aqueous chlorine is added to aqueous sodium bromide and the mixture was shaken with an equal amount of trichloromethane. Given that the density of trichloromethane is 1. 48 g cm? 3, which one of the following observations can be seen? A Colourless Red-brown B Red-brown C Colourless D Colourless Red-brown 19 Below is a scheme of reaction showing the chemistry of some compounds of transition metals in aqueous solution. Excess AgNO3 (aq) Excess KCl (aq) Cu (s) Blue solution White precipitate What are the possible identities of the blue solution and the white precipitate? Blue solution CuNO3 CuNO3 Cu(NO3)2 Cu(NO3)2 White precipitate CuCl AgCl CuCl AgCl A B C D SRJC 9647 / 01 / Prelim / 2011 [Turn Over 11 20 Stigmasterol is an unsaturated plant sterol occurring in the plant fats of soybean and rape seed. How many stereoisomers does stigmasterol have? A B C D 29 210 211 212 21 In which of the following reactions is the reactive carbon sp3 hybridised in the reactant and sp2 hybridised in the product? Br2 in CCl4, in the dark A CH3CHCHCH3 CH3CHBrCHBrCH3 B CH3COCH3 LiAlH4 in dry ether, r. t. p. (CH3)2CHOH C CH3CH2OH Excess conc. H2SO4, 1700C CH2CH2 Cl Cl D CH3Cl / AlCl3 SRJC 9647 / 01 / Prelim / 2011 [Turn Over 12 22 Which one of the following processes is a propagation step in the chain reaction between CH2Cl2 and Cl2 when irradiated with light? A B C D 2 Cl Cl2 CH2Cl2 + Cl2 CCl3 + Cl2 CHCl3 + Cl CHCl3 + HCl CCl4 + Cl CCl4 + H 23 In the preparation of ethene, ethanol was added to a drop of heated reagent L. The impure ethene was washed by being bubbled through a solution of M before collection. What are the reagents L and M likely to be? Reagent L concentrated H2SO4 concentrated H2SO4 ethanolic NaOH dilute NaOH Reagent M ethanolic NaOH dilute NaOH concentrated H2SO4 concentrated H2SO4 A B C D 24 In the Wurtz reaction, two halogenoalkanes react with sodium metal to form a new carbon-carbon bond, resulting in the formation of a new alkane: R? X + R'? X + 2Na R? R' + 2NaX Which of the following does not show the correct product when the stated reactants are reacted together in a Wurtz reaction? A B CH3Br + C2H5I + 2Na CH3CH2CH3 + NaBr + NaI CH3 Br + + CH3 Br + 2Na + 2NaBr C Br CH 2Br + 2Na 2NaBr D Cl + Br 2Na + NaCl + NaBr SRJC 9647 / 01 / Prelim / 2011 [Turn Over 13 25 Which of the following shows the correct reagents and conditions to produce the desired product? H H C H NaBH4 H COOH (l) Na2CO3 (s) H C H H C H COO Na (l) + A H C H B O O (l) OH PCl 5 (aq) H3 3 CHC C Cl (l) C H3C CH3 C H H C H Cl ethanolic KOH, heat H H C H H C H OC2H5 D H C H 26 Compound Q was refluxed with a queous sodium hydroxide and the resulting mixture was then distilled. The distillate gave a positive tri-iodomethane test. The residue in the distillation flask, after acidification, gave a white precipitate. Which of these could be Q? A B C D CH3CH2COOCH2CH3 C6H5COOCH3 CH3CH2OCOC6H5 CH3CONHC6H5 27 Which of the following produces a compound with a chiral carbon centre on reaction with hydrogen cyanide? A B C D CH3CHO CH3CH2COCH2CH3 CH3CO2CH3 HCHO 9647 / 01 / Prelim / 2011 [Turn Over SRJC 14 28 The Russian composer Borodin, was also a research chemist. He discovered a reaction in which two ethanal molecules combine to form a compound commonly known as an aldol (reaction I). The aldol formed can then produce another compound on heating (reaction II). reaction I reaction II CH3CHO CH3CH(OH)CH2CHO CH3CH(OH)CH2CHO CH3CH=CHCHO + H2O Which of the following best describes reactions I and II? I A B C D II elimination reduction reduction elimination addition addition elimination substitution 29 Compounds W, X and Y react with sodium, but only one of them reacts with aqueous alkaline iodine. Which of the following combinations is likely to be W, X and Y respectively? A B C D C6H5OH, CH3COOH, (CH3)3C OH HOCH2CH2OH, HOCH(CHI2)CH2COOH, CH3COCH2I CH3COOH, (CH3)3COH, CH3COCH2OH CH3COOH, CH3COCHI2, CH3COOCH2OH SRJC 9647 / 01 / Prelim / 2011 [Turn Over 15 0 In the study of a polypeptide structure of Z, it was digested using two different enzymes. The fragments obtained were then separated using electrophoresis. Analysis of the fragments from each digestion gave the following results: Fragments using first enzyme: tyr-leu-leu tyr-ala gly-asp-pro asp-pro Fragments using second enzyme: leu-tyr asp-pro-gly ala asp-pro-tyr-leu Deduce the possible sequence of Z. A B C D asp-pro-tyr-leu-ala-leu-tyr-asp-pro-gly asp-pro-gly-asp-pro-tyr-leu-leu-tyr-ala gly-asp-pro-asp-pro-tyr-ala-tyr-leu-leu ala-asp-pro-gly-asp-pro-tyr-leu-leu-tyr SRJC 9647 / 01 / Prelim / 2011 [Turn Over 16 Section B For questions 31-40, one or more of the numbered statements 1 to 3 may be correct. Decide whether each of the statements is or is not correct. The responses A to D should be selected on the basis of A 1, 2 and 3 B 1 and 2 only C 2 and 3 only D 1 only are correct are correct are correct is correct No other combination of statements is to be used as a correct response. 31 Two colourless liquids were mixed together in a beaker and left to stand. The mixture separated into two distinct layers after standing for an hour. Assuming that the liquids did not undergo any reaction with each other, which pair(s) of liquids, when mixed, will produce the above observation? 1 2 3 Ethanal and water Cyclohexanol and methanol Ethanol and tetrachloromethane 32 A reversible reaction, A (aq) + B (aq) of M2+ ions. C (aq) is catalysed by an aqueous solution Which of the following statement(s) about this system is/are correct? 1 2 3 The catalyst alters the mechanism of the reaction. The catalyst reduces the activation energy for both the forward and backward reaction. The catalyst alters the composition of the equilibrium mixture. SRJC 9647 / 01 / Prelim / 2011 [Turn Over 17 33 Sulfuryl chloride, SO2Cl2, is often used as a source of Cl2 for various organic reactions. Sulfuryl chloride is also a highly reactive gaseous compound which decomposes endothermically when heated in the following manner: SO2Cl2 (g) SO2 (g) + Cl2 (g) A 7:2 mole ratio of SO2Cl2 and Cl2 was placed in an evacuated vessel at 375 K and 6 atm. After 10 minutes, the mixture reached equilibrium and the partial pressure of SO2 was found to be 0. 625 atm. Based on the above data, which of the following statement(s) is/are correct? 1 2 3 The Kp value is 0. 03 atm. The Kp value will decrease when total pressure increases. The partial pressure of SO2Cl2 will remain constant when temperature decreases. 34 Consider the reaction between sulfur dioxide and oxygen to form sulfur trioxide: 2SO2 + O2 2SO3 Given that ? H = ? 199 kJ mol-1, and ? S = ? 190 J K-1 mol-1 for the above reaction, which of the following statement(s) is/are correct for the reaction? 1 2 3 The reaction is spontaneous under standard conditions. As temperature increases, the reaction becomes more spontaneous. In the formation of sulfur trioxide, the system becomes more disordered. 5 Hydrazoic acid, HN3, is an acid with pKa value of 4. 72. Which of the following statement(s) about a 25. 0 cm3 sample of 0. 100 mol dm? 3 HN3 (aq) is/are correct? 1 2 3 The concentration of N3? in the sample is 1. 38 x 10? 3 mol dm? 3. A buffer solution is formed when 12. 50 cm3 of 0. 100 mol dm? 3 of NH3 (aq) is added to the sample. When titrated with NaOH (aq), the equivalence pH is above 7. SRJC 9647 / 01 / Prelim / 2011 [Turn Over 18 36 In 1800, an Italian physicist Alessandro Volta invented the first battery – the voltaic pile. A diagram of the voltaic pile is shown below: Blotting paper soaked in Zinc metal H2SO4 (aq) Copper metal One cell Which of the following statement(s) is/are correct? 1 2 3 The overall equation of the reaction occurring in the cell is Cu2+ + Zn Zn2+ + Cu. Zinc is the anode, while copper is the cathode. cathode The e. m. f. of the voltaic pile can be increased by stacking more elements 37 When drops of NaOH (aq) were added to a green solution of Cr(NO3)3 (aq), a greygreen precipitate was formed. The precipitate dissolved when excess NaOH(aq) was added, forming a dark green solution. Subsequent additions of liquid ammonia caused the solution to turn violet. According to the information given above, which of the following statement(s) is/are incorrect? 1 2 3 OH? acted as a ligand in the first addition of drops of NaOH (aq). NH3 is a stronger field ligand as compared to OH?. The [Cr(H2O)6]3+ complex is the most unstable of all the complexes involved. SRJC 9647 / 01 / Prelim / 2011 [Turn Over 19 38 Chloroethane reacts with excess alcoholic ammonia when heated to form a quaternary ammonium salt in four steps. Which of the following statement(s) about the reaction is/are correct? 1 2 3 In each step, the attacking nucleophile is more nucleophilic than that in the previous step. In each step, the reaction is slower than the previous step due to increased steric hindrance. In each step, an intermediate with a sp2 hybridised carbon atom is formed. 39 Dopamine is a neurotransmitter found in many animals, including vertebrates and invertebrates. The structure of dopamine is shown below: O OH HO OH NH2 Which of the following statement(s) is/are correct? 1 2 3 1 mol of dopamine reacts with 3 mol of ethanoyl chloride. 1 mol of dopamine reacts with 1 mol of HBr (aq). 1 mol of dopamine reacts with 1 mol of Na2CO3. SRJC 9647 / 01 / Prelim / 2011 [Turn Over 20 40 Paracetamol is commonly used for the relief of headaches, fever and pains. It is a major ingredient for cold and flu remedies. The structure of Parcetamol is shown below: H N O CH3 HO Which of the following statement(s) about Paracetamol is/are correct? 1 2 3 On addition of concentrated nitric acid, a white precipitate will be formed. A pale yellow precipitate is formed when a solution of warm alkaline aqueous iodine solution is added. It reacts with hot aqueous sodium hydroxide to produce a gas which turns damp red litmus paper blue SRJC 9647 / 01 / Prelim / 2011 [Turn Over

CFC20 Healthy eating for families Essay

?2. 1 Outline the importance of family mealtimes. Family meals are important; it will help the family come to together. At the meal time everyone can talk and listen. They can talk about how they feel or what they have done. Children can learn how to sit at the table and behave. Regular meal time it is important of the child’s daily routine and they can learn about healthy food. 2. 2. Describe ways to encourage children to eat healthily. Give the children healthy foods. Show children that you eat healthy food, they will like to be copying. Eating should be fun and shared with other family members. Try not to give them too much snack. Children usually have small appetites so they may need to be given small portions of food at mealtimes. Give them a wide variety of foods so that they get used to a range of tastes and textures Limit the amount of sugary and fatty foods they eat Encourage the children to drink nutritious drinks such as a milk or diluted unsweetened fruit juices instead of sweetened. Children should be become independent at feeding themselves as soon as possible Let young children help with food preparation Aim to provide three meals, with nutritious snacks between meals 3. 1. Identify food restrictions for religious groups. There are some foods that not everyone eats. When planning meals, it is good idea to find out what people can and cannot eat. Some religions have rules about food and they have rules about the way food is made, such as Jewish and Muslim families will only eat meat if the animal has been killed in a certain way. Religious group Comments Hindus They don’t eat beef Most of them are vegetarian They don’t eat cheese, eggs They don’t usually eat pork Sikhs Some are vegetarian; others will eat lamb, chicken and fish They don’t usually eat pork They don’t eat beef Jews Meat must be kosher. Do not eat pork, shellfish or fish without fins and scales Separate cooking dishes must be used for dairy products They don’t eat dairy products and meat together Muslims Meat must be halal They don’t eat pork May not eat some dairy products During the Ramadan adults fast between sunrise and sunset Rastafarians Mainly vegetarian, some eat fish They don’t eat pork May not eat some cheese 3. 2. Outline special dietary requirements There are groups of people who may have other food needs Vegetarian Vegan 3. 3. Identify food allergies Having a food allergy means that eating or sometimes touching a certain food causes a person to be ill. If person has an allergy to a certain food, they should avoid eating. An allergic reaction can happen when somebody eats the food they are allergic to, and become ill. We have to careful before we giving people food. There are common allergies such as; Milk Peanuts and nuts from trees Eggs Wheat Fish Honey Sesame 4. 1. Give reasons for hand washing before food preparation BEFORE TOUCH THE FOOD BEFORE THE TOUCH THE PLATES AFTER YOU HAVE BEEN TO TOILET AFTER YOU HAVE SNEEZED OR COUGHT Before making or serving food we should wash our hands with hot water and soap. This will stop germs on your hands from going onto the food or onto the plates. It also stops germs from raw meat and fish from getting onto foods that are ready to serve. 4. 2/4. 3 Food storage and preparation to stop cross-contamination Foods have to be stored properly for it to be safe, so that the food is good to eat and free from germs and bacteria. One hazard of poor food storage is cross-contamination. Some foods are not safe to eat raw because they have germs on them which are removed only during the cooking, which then makes the food safe to eat. Cross-contamination happens when the germs from raw foods are passed on to cook foods, which are then eaten. Use separate chopping boards and knives for raw and cooked foods. Wrap up cooked foods Cook raw foods well Do not store raw and cooked foods near each other Keep the kitchen clean Defrost food before cooking if required Make sure that food is cooked all the way through, especially meat and fish Keep hot food hot and cold food cold Wrap or cover food and put it away in the fridge or cupboard as soon as it is cool Make sure that raw meat and fish are kept at the bottom of the fridge to stop them dripping onto cooked food and causing cross-contamination.

Ethics: Goldman Sachs Essay

Goldman Sachs, founded by German immigrants, began as a small humble business looking to succeed. Over time their business strategy changed and they entered into ethical and legal issues they had not encountered before. In the late 1920s Goldman Sachs began maliciously investing in companies to drive their demand. They coined this term â€Å"laddering† from overleveraging them selves and putting the market at risk. Their actions created the bubble that burst in the stock market crash of 1929. Furthermore, Goldman Sachs engaged in â€Å"trading huddles†. Only their preferred customers where chose to participate on this unethical schemes, and the same customers were shot changed on financial profit from unprofitable IPO’s shares. It was clear that Goldman Sachs business focus was not customer based but self-based by the mantras that they use to have: â€Å"long-term greedy† and â€Å"Filthy rich by forty.† In 2008 the market once again crashed equally as hard as in 1929 and Goldman Sachs was at the root of the cause. With self-fulfillment and greed in mind, Goldman Sachs used Collateralized Debt Obligations and bet against their clients to increase profitability. Goldman Sachs progressively became more unethical in their dealings, and the SEC took notice. Goldman was accused on two accounts of fraud because of one particular portfolio of securities, named ABACUS, which they dealt with. After analyzing the case and reviewing the unethical actions and alleged accusations against Goldman Sachs, it is clear that Goldman Sachs was operating unethically. They misrepresented, hid information, and engaged in conflicts of interest with their clients. Goldman Sachs took an unfair advantage with their â€Å"toes to the line mentality† on their legal and ethical issues leading the SEC to establish harsher regulations for the banking industry. Goldman Sachs can become more ethical by adopting Warren Buffet’s front page of the newspaper principles. When a firm finds that its employees needs to convince themselves that their work is adding social value, the firm should questions its ethical practices. The recommendation for a firm when they find themselves condoning unethical actions is to be honest with the regulating entity and its clients. It is likely to reward them in the long run despite the immediate consequences. Goldman Sachs Background In 1869 two German immigrants came to the US and founded Goldman Sachs with the humble purpose of being both an originator and a clearinghouse for commercial paper (Jennings, 73). However, the firm started to gradually drift from its initial business strategy set by its founders and started to provide other services and undertook investment strategies. In the late 1920’s Goldman Sachs created investment companies that it would itself invest in to drive up the market demand. As a result, investors started to invest in the company because of the perceived high demand. With the new proceeds, Goldman would borrow more money and create another investment company and repeat the process. As a result of this action, Goldman contributed to the stock market crash in 1929 and, with a similar strategy, the recent financial crisis in 2008 (Jennings, 73). During the Internet bubble in the 1990’s, Goldman engaged in an activity known as laddering. Goldman, as the underwriter of a security, would enter an agreement with its best clients to sell a portion of IPO’s shares at a predetermined price after their initial offering. This led to a misconceived demand in the secondary market of the stock due to the predetermined secondary pricing Goldman had set with some of it’s clients. Furthermore, in the 2000’s, Goldman would sell Collateralized Debt Obligations, for which it had a negative outlook, to its clients and issue trading reports, developed through the existing â€Å"trading huddles† in the firm, to certain preferred customers that was different from the analyst reports that were issued to the public. Its practices has been scrutinized and particularly its â€Å"toes to the line† on legal issues. In most cases, Goldman and its clients are the two main parties involved, and it is the clients that usually end up with the short end of the stick. Goldman’s actions are partly explained by the mantras that they use to have: â€Å"long-term greedy,† and â€Å"Filthy rich by forty.† This paper is relevant for current business leaders because it presents a case where a successful firm has come under great scrutiny due to its unethical actions and questionable practices. Bending the rules and pushing the envelope continuously to be a profitable firm has put Goldman in an unfavorable light in society. The paper will further discuss the ethical and legal issues Goldman has run into through its practices and will provide a general recommendation for how a business can avoid and deal with unethical practices. Analysis of Relevant Legal and Ethical Issues Initial Public Offerings Goldman created a synthetic demand in its IPOs through selling a portion of the IPO shares to its clients at a predetermined price higher then the initial price. This caused the price of the IPO shares to rise due to manufactured demand by Goldman (Jennings, 75). The Securities and Exchange Commission filed a complaint against Goldman alleging that they had violated Rule 101 of Regulation M under the Securities Exchange Act of 1934, which states: â€Å"Rule 101 of Regulation M, among other things, prohibits underwriters, during a restricted period (the five-day period preceding the determinations of IPO prices and prior to the completion of distributions of IPO shares), from directly or indirectly bidding for, purchasing, or attempting to induce any person to bid for or purchase any offered security in the aftermarket† (SEC). Goldman clearly attempted to induce, or induced, certain clients to bid for or purchase offered securities in the aftermarket through its laddering practices, which clearly violates Rule 101 of Regulation M. Goldman agreed to settle with the SEC by paying a fine of $40 million without admitting or denying the allegations (SEC). Some of the unethical practices present in Goldman’s laddering activities were: * Misrepresentation- Goldman inflated the price of the IPO shares consciously through the manufactured demand and the price of the shares were misrepresented. * Lying- Goldman Sachs lied to some of its best clients and had them pay higher price than the initial price under the laddered IPOs. * Violating Rules – Clearly making money from laddering is a violation of rules and therefore Goldman paid a heavy fine when they were caught engaging in this illegal practice Collateralized Debt In order to understand Goldman’s involvement in CDO’s it is pertinent to explain the security. Collateralized debt is simply an Asset-Backed Security, which means that there is a physical asset backing the security under contract. For example, a house serves as collateral for a mortgage and the bank has the right to claim the house in the event that the borrower defaults on the loan. A security is considered any investment contract that gives the owner evidence of indebtedness or business participation. Notes, stock, bonds, debentures, warrants, subscriptions, voting trust certificates, rights to oil, gas, and minerals, and limited partnership interest are all example of securities (Jennings, 728). A Collateralized Debt Obligation is a variety of fixed-income assets that are pooled together to create one security. In 2008, many of these CDOs became completely worthless because they were filled with sub-prime mortgages that defaulted, and Goldman was a big player in the CDO market. ABACUS was one particular CDO deal in which Goldman had created and sold. Fabrice Tourre, a vice president at Goldman Sachs at the time, put together the ABACUS CDO to be sold to clients. Tourre intentionally filled ABACUS with subprime mortgages so that Goldman could take a short position on the security, which means betting against its success, in order to profit. This CDO deal became infamous because the SEC uncovered a few emails written by Tourre. In one of the emails Tourre wrote: â€Å"More and more leverage in the system. The whole building is about to collapse anytime now †¦ Only potential survivor, the fabulous Fab [rice Tourre] †¦ standing in the middle of all these complex, highly leveraged, exotic trades he created without necessarily understanding all of the implication of those monstrosities [sic]!!!† (Quinn) The SEC filed a civil action suit against Goldman and Tourre for their conduct under the ABACUS deal. The SEC’s complaint charged Goldman and Tourre with violations against Section 17(a) of the Securities Act of 1933, Section 10(b) of the Securities Exchange Act of 1934, and Exchange Act Rule 10b-5 (SEC). Each of the following rule of law states, among other things: â€Å"It shall be unlawful for any person in the offer or sale of any securities †¦ (2) to obtain money or property by means of any untrue statement of a material fact or any omission to state a material fact necessary in order to make the statements made, in light of the circumstances under which they were made†¦ â€Å" (SEC) â€Å" POSITION LIMITS —As a means reasonably designed to prevent fraud and manipulation, the Commission shall, by rule or regulation, as necessary or appropriate in the public interest or for the protection of investors, establish limits (including related hedge ex ­ emption provisions) on the size of positions in any security-based swap that may be held by any person.† (SEC) â€Å"It shall be unlawful for any person †¦ (a.) To employ any device, scheme, or artifice to defraud,†¨(b) To make any untrue statement of a material fact or to omit to state a material fact necessary in order to make the statementsmade, in the light of the circumstances under which they were made, not misleading, †¦Ã¢â‚¬ Ã¢â‚¬ ¨ (Taft Law) Goldman clearly violated Section 17(a) by not including the information that their ABACUS securities were based on poor mortgages. They violated Section 10(b) by taking a large short position in the Abacus deal. Lastly, they violated Rule 10b-5 by omitting material fact of their short position in the security. Furthermore, the SEC prohibits any analyst from issuing reports on securities that run contrary to the analyst’s true beliefs about the securities. Goldman denies betting against clients in an 8 page letter to it shareholder signed by CEO Lloyd Blankfien as well as President Gary Cohn. Goldman claims that they were protecting themselves and Blankfien said, â€Å"†¦Certainly we did not know the future of the housing market† (SEC). Goldman agreed to pay a fine of $550 million and admitted that it failed to disclose vital information in their marketing of ABACUS securities. Goldman’s actions did not reflect honesty, integrity, or responsibility. Some of the ethical issues present in the ABACUS deal are: * Taking unfair advantage – Goldman consciously made poor recommendations to their clients in order to sell the Abacus CDOs so they could make a profit on their short position. * Engaging in Conflict of Interest – Goldman stated: â€Å"We may trade, and have existing position, based on trading ideas before we have discussed those ideas with you†(Jennings 80). Despite this argument, they had a significant incentive to market and sell the securities in order to profit. * Hiding or Divulging information – Goldman used another firm to create the Abacus CDOs in order to distance themselves from the trade conflicts that would arise by shorting the CDO. They also omitted crucial information about the security, which was the knowledge of the amount of high-risk mortgage securities in the Abacus CDO. * Violating Rules- Goldman was charged with securities fraud, as explained by above, and did not look out for the best interest of their clients. Trading Huddles Goldman’s first obstacle with their trading huddles activities came from their Fundamental Strategies Group of analysts. The group consisted of Goldman analysts employed by their Securities Divisions. These groups of desk analysts were not regulated by the SEC rules because they did not involve â€Å"GIR [Global Investment Research Division] equity research analysts.† The SEC have strict guidelines that, â€Å"prohibits an analyst from issuing reports on securities that run contrary to the analyst’s true beliefs about the securities.† (Craig) Goldman did not break any statutory laws with the Fundamental Strategies Group since they were not covered in the SEC ruling. From the uprising, Goldman’s executives sent an email to all their clients, explaining their â€Å"Trading Ideas† and advice. The email was meant to elucidate the firm and public’s â€Å"conflict of interest† policy. In the message, Goldman stated, â€Å"You should not consider Trading Ideas as objective or independent research or as investment advice. When we discuss Trading Ideas with you, we will not be acting as your advisor (including, without limitation, in relation to investment, accounting, tax or legal matters) and the provision of Trading Ideas to you will not give rise to any fiduciary or equitable duties on our part† (Sorkin 1). In the case of Goldman vs. Common Wealth of Massachusetts, the court ruled, â€Å"Goldman failed to reasonably supervise GIR equity analysts’ communications to prevent and detect dissemination by GIR equity analysts of certain unpublished short term trading ideas† (SEC) and were held accountable to Section 204 (a)(2)(J) of the Act, which in part states that: â€Å"The secretary may by order†¦. deny, suspend, or revoke, any registration †¦ if he finds (1) that the order is the public interest and (2) that the applicant or registrant (J) has failed reasonably to supervise agents, investment adviser representatives or other employees to assure compliance with this chapter† (SEC). Goldman failed to supervise its agents to guarantee compliance with the act. The court ruled that Goldman must have a policy that allows a GIR equity research analyst to identify an unpublished report and follow its publication through more than 14 persons. Furthermore, Goldman will be required to disclose in their Terms of Use Agreement that the amount of GIR equity research report varies from client to client (Stempel). â€Å"Goldman agreed to pay a fine of $10 million and stop giving favored clients trading ideas developed at internal gatherings known as â€Å"trading huddles†Ã¢â‚¬  (Stempel). In addition, they were charged with not dealing in with honesty with all clients and took advantage over others, known as fair dealing with clients. While all companies try to balance on the line of pursuing profits and maintaining a moral conduct, Goldman Sachs was unable to keep their balance. After the reports of intentionally avoiding regulation from SEC Regulation AC, requiring equity research analysts to certify that their issued reports represents their actual views (SEC), the company crossed ethical boundaries. With their Fundamental Strategies Group, Goldman as a whole company condoned unethical action. Instead of following the regulation of the SEC they went around it. Some of the ethical issues present in the case were: * Taking unfair advantage – one part of the firm issued equity research reports to the public and another part of the firm did also engage in equity research but came to a different conclusion. However, the latter report was only issued to certain clients. By releasing one view on a subject and taking another position themselves, thereby taking unfair advantage. * Violating rules – even though their Fundamental Strategies Group were not violating any laws or regulation, they failed to follow the SEC Regulation AC Recommendation and Conclusion The cases mentioned above are only a few of the instances where Goldman has been scrutinized by government entities and the public. Its continuous practice of â€Å"toes to the line† on legal issues has many times resulted in lawsuits against the firm. As we can see, the legal issues they are pushing are unethical, however, they are not violating those laws. Instead, they are charged with other violations that result from operating at the line of illegal practices. Their reputation took a hit due to multiple SEC allegations and fines. To avoid these ethical situations Goldman Sachs should use the ethical principles that are taught. For example, they should have used Warren Buffet’s front page of the newspaper test in the case with the IPOs. Goldman Sachs should ask itself if they would be indifferent of their actions if the public would know that they intentionally manufactured demand for their IPOs. A partial reason for their unethical conduct was due to rationalizing; when they were confronted about their actions they proceeded by rationalizing and labeling their actions in order to avoid the ethical dilemmas. In the ABACUS case, Goldman stated that their clients are â€Å"qualified† and â€Å"sophisticated† enough to make market risk decisions. They most likely rationalized their actions by saying that the system is unfair and â€Å"if we don’t do it, someone else will†. In their case with trading huddles, it was a practice carried out by other firms, however, not to the same degree as Goldman. They waited until the lawyers told them it was wrong and rationalized by thinking â€Å"It’s a gray area†. Goldman Sachs’s pushed the limit of both the letter of the law, and the spirit of the law when dealing with its clients. Goldman’s history of brushing past ethical decisions have created many problems for the firm in the past years. It is clear that pursuing this strategy has not been to their benefit. A business should not have to argue how its actions add social value; it should be clear by the actions themselves. Therefore, if a business finds itself engaging in activities that do not pass Warrant Buffet’s Front of the Newspaper test it should reconsider its actions and business model. A red flag should rise when employees convince themselves that they are adding social value, as in the case with Tourre, or if employees feel any discomfort with their actions. If a company finds itself condoning unethical actions and violating the law, the best solution is to make an action plan on how to present their violations to the regulating government entity most truthfully and inform their clients of the unethical conduct with an apology. Despite that these measures might have a negative impact on the firm, it is highly likely be a short-term effect. The longstanding trust built up from their honesty and confrontation of the unethical actions could be beneficial to the firm’s future reputation. Work Cited Craig, Susanne. â€Å"Goldman’s Trading Tips Reward Its Biggest Clients.† The Wall Street Journal. 24 Aug. 2009. Web. 23 Mar. 2012. . â€Å"Goldman Sachs & Co.: Lit. Rel. No. 19051 / JANUARY 25, 2005.† U.S. Securities and Exchange Commission (Home Page). Web. 28 Mar. 2012. . Quinn, James. â€Å"Goldman Sachs, Fabrice Tourre and the Complex Abacus of Toxic Mortgages.† The Telegraph. Telegraph Media Group, 16 Apr. 2010. Web. 25 Mar. 2012. . â€Å"Rule 10b-5 — Employment of Manipulative and Deceptive Devices.† Law School  » University of Cincinnati College of Law. Web. 28 Mar. 2012. . â€Å"SEC Charges Goldman Sachs With Fraud in Structuring and Marketing of CDO Tied to Subprime Mortgages.† ; 2010-59; April 16, 2010. Web. 28 Mar. 2012. . Sorkin, Andrew. â€Å"DealBook.† Mergers, Acquisitions, Venture Capital, Hedge Funds. 12 Jan. 2010. Web. 28 Mar. 2012. . â€Å"Statement by SEC Chairman: Proposal of Regulation AC.† Statement by SEC Chairman: Proposal of Regulation AC (Harvey L. Pitt). Web. 28 Mar. 2012. . Stempel, Jo nathan. â€Å"Goldman Fined $10 Million, Agrees to Stop Trading Huddles.† Reuters. Thomson Reuters, 09 June 2011. Web. 28 Mar. 2012. .