Post-War Boom Essay Example for Free

Post-War Boom Essay Every 22nd of April, the world celebrates Earth Day, where the importance of environmentalism given emphasis. What was once an ideology is now a social movement, with major corporations joining in the campaign to preserve the environment. In the US, the road to environmental movement started as early as the 1960s but only reached extensive recognition in the 70s. In 1962, Rachel Carson, a biologist, wrote a book entitled Silent Spring, which exposed the threats brought on by the use of pesticides (Brinkley 875). She wrote that it was the first time that human beings were being subjected to â€Å"dangerous chemicals† and called on the government to act on it (LaFeber et al 547). But it was not only Carson who opened the door for environmental movement. Following the war, the drastic effect on the environment was starting to put people in a crisis. Water pollution was spreading; toxic fumes from factories and power plants had started to infiltrate the water and the atmosphere (Brinkley 876-877). In Ohio, for example, the Cuyahoga River had â€Å"burst into flames† following constant dumping of petroleum waste into it (877). The word â€Å"smog† was created to refer to the combination of smoke and fog which relentlessly plagued the people living in cities (877). Environmental destruction had started. The realization made people become aware of the possible damages it could inflict not just on the people but also on their surroundings. In fact, as early as 1950s, the Sierra Club, a traditional conservation organization, had contested the proposal to dam the Green River in Colorado (Glen Canyon Institute 2008). Sierra Club deemed the proposal as â€Å"America’s most regretted environmental mistake† (2008). The group sought to stop it but was in vain. The Glen Canyon damming opened the waters (put intended) for the environmental movement that when proposals for damming Marble and Grand Canyon were put forward, the Sierra Club staged not just protests but also placed advertisement in the New York Times to stop it. In a way, the Colorado incident put forth the rising environmental movement. It triggered the concern for environmental conservation and preservation. Among the environmental problems which people hoped to address were the aforementioned water problem, ozone layer, greenhouse effect, nuclear power and the escalating amount of garbage (Divine et al 870-871). For instance, studies in the 70s revealed the effects of chlorofluorocarbons (CFC) to the earth’s ozone layer (870). Scientists also discovered that smoke and other toxic fumes contributed to the formation of acid rain, which was dangerous not only to forests but the aquamarine (870). Only April 1970 the first Earth Day was celebrated in campuses, the start of what was to be a campaign to expand the threats of toxic wastes to the environment (LaFeber 547). Earth Day was the idea of Senator Gaylord Nelson of Wisconsin who initially thought of conducting a series of talks around campus (Brinkley 878). Compared to the antiwar rallies that as common during these days, the Earth Day demonstration had an â€Å"unthreatening† aura that made it interesting to people. During President Nixon’s first term, the Congress passed the National Environmental Policy Act and the creation of the Environmental Protection Agency (Brinkley 878). Laws were also created to regulate environmental hazards, preserve endangered species and protect wilderness areas (LaFeber 547). The Clean Air Act and Clean Water Act were passed in 1972 (Brinkley 878). The support of government in environmentalism made it easier to somehow alleviate environmental degradation brought on by pollution and the advancing industrial society. However, during the Reagan administration, federal cuts were made in favor of promoting private enterprises (547). Reagan also hoped to abolish the Council on Environmental Quality and cut funds for the Environmental Protection Agency (547). However, his anti-environmental revolution only made the environmental movement stronger. Environmental groups saw rise in its members.

knockout mouse

knockout mouse Knockout Mouse 1. Introduction Generally, DNA was first transferred by design into an organism and expressed as protein, therefore the potential of the tool that was being discovered must be found quickly by the scientist. Early experiments were limited to bacteria and viruses, but soon after the field of experiments were enlarged to those on animals and plants. (E.Hill, 2002). This topic, â€Å"knockout mouse† relates to the field of genetic engineering which further delves into a more specific technique called transgenic technology. â€Å"Knockoutscience.com†(2009) analyses that transgenic technology refers to the alteration of a certain genomic DNA of an organism in genetic engineering. As the result, both offspring of a transgenic organism and the parents (homozygous) will share the same genotype. The most common type of transgenic organism used in research is the knockout mouse, thoughknockout rats andknockout rabbits have also been developed. A knockout mouse defines a mouse which is being genetically engineered by turning off one or more genes through a process called gene knockout. â€Å"Genome.gov â€Å"also explains that a knockout mouse is a laboratory mouse in which researchers have inactivated, an existing gene by replacing it or disrupting it with an simulated piece of DNA. The loss of gene activity often causes changes in a mouses phenotype, which includes appearance, activities and other observable physical and biochemical characters. â€Å"Knockoutscience.com† (2009) also elucidates that it has become routine to develop knockout mice with disruptions in specific genes. By observing the resulting phenotype, scientists are able to view the effects of this gene disruption from these knockout mice. It is true to say that the phenotype is a direct result of the gene knockout and can offer evidences as to the biological role of the gene, but rarely the phenotype can also be the result of compensatory or indirect effects of the gene knockout. Sometimes the result obtained in a phenotype can be completely unrelated to the disrupted gene. Additionally, some gene knockouts create alethal phenotypewhere the organism fails to develop in utero, making in vivo studies exceedingly difficult. It was claimed that this technique may help to solve dopamine-related neurological illnesses.(Carol A.T, 1996) The technique allows transgenic animals that lack of a certain gene or its associated protein product to grow. In experiments with mice, researchers were able to knockout the animals dopamine transporters, causing the mice to behave as if they had been given huge doses of cocaine or amphetamine. Walinski.H(2009) states that knockout mice have different way of uses. First, the specific functions of particular genes can be tested and the regulation of these particular genes can be observed. The effects of a particular gene can be determined by examining what is happening in anin vivo model, we are able to determine the effects a particular gene may have. These effects would be impossible to observe in a culture dish. Another useful application of knockout technology is in biomedical research and drug development. Knockout mouse can be used to study the evolution of thousands of genetically based diseases at the molecular level in order to seek for the best medications that act on that gene. For Example, Lili.X and Asok.C (2005 ) both agree that Duffy positive and Duffy knockout mice have revealed both human malaria parasite Plasmodium vivax and mouse malaria parasite Plasmodium yoelii by using parasite invasion. Furthermore, the knockout technology may lead to the discovery of the next generation of blockbuster therapies for curing numerous diseases based on novel targets from the human genome. 2. Background Genetics Timeline for the key events in the history of knockout mouse 1900 Japanese fancy mice became mutant resources for mouse genetics. 1915- The first verterbrate linkage (mapping) was discovered between albino (c) and pink-eyed dilution (p) loci in the mouse. 1923- Discovery of X-ray induced mutations in mouse before the phenomenon was confirmed in fruit-flies. 1980- Specific-locus tests were conducted extensively in the mouse with various chemical mutagens, including N-ethyl-N-nitrosourea (ENU). 1981-1991- knockout mice are established. 1981- The first embryo stem (ES) cell was identified in the mouse. Martin Evans and Matt Kaufman in Cambridge, U.K., isolate mouse embryonic stem cells, which can develop into the full range of tissues. 1982-Transgenic mouse technology was established through the generation of the â€Å"giant mouse† mutant. 1985- Introduction of the Cre-loxP system by Brian Sauer act as temporal control of transgenic gene expression. 1987- Mario Capecchis team at the University of Utah describes a method for making knockout mice, as does Oliver Smithiess group at the University of Wisconsin. 1989- First knockout mouse was made by combining ES cell and gene-targeting technologies. 2007- International Knockout Mouse Consortium was organized and the Banbury II meeting was held in Brussels, Belgium. Nobel Prize for Physiology and Medicine was awarded for the development of mouse knockout techonologies. 3. Genetic Technique There are several method to produce knockout mouse, such as gene deletion, homologous recombination method, pronuclear microinjection and gene targeting. However, only gene targeting will be mentioned herein. Gene Targeting is the elimination or alteration of a genes function. One of the advantages of gene targeting is a mutant allele can be mended by substituting a wild-type allele over the mutant one in its normal chromosomal location, and such technique known as gene replacement. In this way, both position effect and the DNA rearrangements associated with ectopic insertion can be prevented, as a single replication of the gene is inserted in its normal chromosomal environmental. (Griffiths.A and Susan R.Wessler,etc, 2008). 4. Social Issues Recently, the evaluation of animal and human welfare as it may be affected by biotechnology is becoming a hot issue. The lack of an conscience and the information of the processes involved is one of the most important fact. ( Marie.B, 1997) Marie.B (1997) also states that the moral evaluation process is complicated by the fact that many techniques and developments in biotechnology are appropriate for patent. Some of the biotechnologists are reluctant to reveal appropriate information is understandable. Therefore, education concerning transgenic animal care and utilize is indeed very importance, involving the careful consideration of the reasons for manipulating the genome of any organism as genetic engineering is a dangerous and sensitive social issue. ( Marie.B, 1997) Pros and Cons of Knockout Mouse Advantages Disadvantages Provides important clues about what that gene normally does because human share many genes with mice. (Genome.gov, 2009) Limitation of the utility of knockout mice as models of human disease. (Walinski.H, 2004) Gives better understanding and observation of the characteristics of knockout mice. ( Genome.gov, 2009) The lack of adult mice limits studies to embryonic development and makes it more difficult to determine a genes function in relation to human health. ( Genome.gov, 2009) Gives information that can be used to better understand how a similar gene may cause or contribute disease in human. ( Genome, 2009) The gene that being examined might serve a different function in adults than in developing embryos, giving a false information. (Genome, 2009) Useful in studying and modeling different kinds of cancer, obesity, heart disease, diabetes, arthritis, substance abuse, anxiety, aging and Parkinson disease. Fails to produce an observable change in a mouse or may even produce a different characteristics from those observed in humans in which the same gene is inactivated. ( Genome.gov, 2009) Offers a biological context in which drugs and other therapies can be developed and tested. Producing custom knockout mice is very expensive. It can be from 3000 to as much as 30,000 (Walinski.H, 2004) Useful in drug development and helps to discover the next generation of blockbuster therapies for curing numerous diseases based on novel targets from the humane genome. (Walinski.H, 2004) The cost of equipping and maintaining such a facility is usually very high. ( Walinski.H, 2009) 5.0: Conclusion In conclusion, it is clear that knockout mouse offer a lot of benefits for us. Therefore, a thorough discussion of biotechnology issues is needed, as concurrence must be practiced as to protect transgenic animals. The field of transgenic animal biotechnology is likely to rise as the techniques develop further and will link to more applications by using many more animal species. Thus, it is important that the welfare and ethical concerns must continue to evolve. (Marie.B, 1997) In short, technology essentials together with thoughtful ethical decision-making are equally important to maintain the balance of living creatures. 6.0: Bibliography * Connor A.B, 2007, Schematic and Time Line for the Generation of Knockout Mice, Viewed 25 January 2010, http://web.mit.edu/ki/facilities/transgenic/services/timeline-complete.pdf * Davidson, NC 28036, Homologous Recombination Knockout Mouse, Department of Biology, Davidson College, viewed 15 January 2010, http://www.bio.davidson.edu/Courses/genomics/method/homolrecomb.html. * Eisen, Eugene J, 2005, Mouse in Animal Genetics and Breeding Research, viewed 25 January 2010, http://site.ebrary.com/lib/sunway/docDetail.action?docID=10173945p00=knockout+mouse * Garagna, S, 2004, Mouse Genetics after the Mouse Genome, Viewed 25 January 2010, http://site.ebrary.com/lib/sunway/docDetail.action?docID=10070304p00=knockout+mouse * Genome.gov, 2009, Knockout Mice, Viewed 25 January 2010, http://www.genome.gov/12514551 * Genoway ( 2006), Gene deletion, conditional knockout mouse, viewed 11 february 2010, http://www.genoway.com/conditional_knock_out_mouse.htm * Griffiths.A.J, Wessler.S.R, Lewontin.R.C and Carroll.S.B (2008), Introduction to genetic analysis, W.H,Freeman and Company, England. * â€Å"Google docs†, 2010, Gene targeting construct, Viewed 25 January 2010, http://74.125.153.132/search?q=cache:j6mj7wNqd7gJ:tmc.ctrl.ucla.edu/targeting.pdf+history+knockout+mousehl=engl=my * Hudson, 2010, Taconic enters marketing pact with Transposagen Bio for knockout rat models, viewed 25 January 2010, http://www.pharmabiz.com/article/detnews.asp?articleid=53683sectionid= * Marie.B (1997) Transgenic animlas, viewed 11 february 2010,http://www.ccac.ca/en/Current/Current_Transgenic.htm * National Center for Biotechnology Information, 2007, What is transgenic technology? Viewed 15 January 2010, http://www.knockoutscience.com/ * Research Resources, n.d., Transgenic Knockout Mouse, viewed 25 January 2010, http://www.cellmigration.org/resource/komouse/protocols/mouse_timeline.pdf * â€Å"University of California†, n.d., Transgenic and Gene Targeting Core, viewed 25 January 2010, http://cancer.ucsd.edu/tgm/genetargeting.asp#timeline * Table, http://www.knockoutmouse.org/ * Tamminga, Carol A. Molecular biology, I: a mouse knockout. (molecular technique called gene knockout which allows the development of animals that lack a certain gene and its associated protein product).American Journal of Psychiatry153.11 (1996): 1387.Academic OneFile. Web. 6 Feb. 2010. . * Twyman. R, 2003, Knockout Mice: The inactivation of a specific gene in a mouse, viewed on 15 January 2010, http://genome,wellcome.ac.uk/doc_WTD021038.html * Walinski.H, 2004, Studying Gene Function: Creating Knockout Mice, viewed on 25 January 2010, http://www.scq.ubc.ca/studying-gene-function-creating-knockout-mice/ * Walter E.Hill. , 2002, Genetic Engineering, Taylor Francis, Biddles LTd, Guildford and Kings Lynn, Great Britain. * â€Å"Wikipedia†, 2009, Knockout Mouse, viewed on 15 January 2010, http://en.wikipedia.org/wiki/Knockout_mouse * Xu, Lili, and Asok Chaudhuri. Plasmodium yoelii: A differential fluorescent technique using Acridine Orange to identify infected erythrocytes and reticulocytes in Duffy knockout mouse.Experimental Parasitology110.1 (2005): 80+.Academic OneFile. Web. 6 Feb. 2010. . * Y. Gondo (2008), Trends in large-scale mouse mutagenesis: from genetics to functional genomics. Nat. Rev. Genet. 9(10):803-810., http://www.nature.com/scitable/content/Knockout-mice-timeline-6638351, Viewed On 11 February 2010.

Features of Karakoram Glacier Surges

Features of Karakoram Glacier Surges What are the typical features of Karakoram glacier surges? The Karakoram is part of a complex of mountain ranges at the centre of Asia, where the borders of five countries all converge (Editors of Encyclopà ¦dia Britannica, 2016). Glacial surges are glacial advances at velocities up to one hundred times faster than usual (Sinha and Ravindra, 2012, p. 38). When examining Karakoram glacier surges it appears they are different to other surge clusters in the world. The surges tend to be brief events, with exceptionally high velocities, initiation and termination phases are rapid and the surges do not seem to be seasonally controlled (Quincey et al., 2015, p. 1299). One typical feature of Karakoram glacier surges is that they are short-lived events, usually lasting 3-5 years. When Drenmang Glacier surged in 1930 and 1977 both events only lasted a year (Hewitt, 2007, p. 185) and a Shakesiga Glacier surge in the 2000s only lasted 1-2 years (Quincey et al., 2015, p. 1298). Their brief nature means there have been a huge number of surges over the last 150 years. There have been 34 surges since the 1860s involving 23 glaciers. Four tributaries of Panmah Glacier have surged in less than a decade, three in quick succession between 2001 and 2005. Since 1985, 13 surges have occurred in Karakoram, more than in any comparable period since the 1850s. (Hewitt, 2007, p. 181). Although Karakoram glacier surges are generally short-lived, they are actually longer surge events when compared to surges in Alaska. Another typical feature of Karakoram glacier surges is their extremely high velocities, usually reaching 2km a-1. The Bualtar glacier experienced a mean surface velocity of 2.77 km a-1 during a 1986 surge, compared with a 146m a-1 surge during the previous summer (Copland et al., 2009, pp. 1-2). Between 2006 and 2007, the North Gasherbrum glacier surge had a velocity wave of 3km a-1 and, the peak velocity advanced from 15.5 to 18.5 km (Mayer et al., 2011, p. 908). In the case of the Braldu surge between 2013 and 2014, there was a clear velocity wave of approximately 2 km a-1 (Quincey et al., 2015, p. 1293). These velocities are the most likely cause of what makes the surge such a quick event. The Karakoram surge velocities are faster than other surge velocities across the world, where the velocities tend to reach only a few thousand m a-1. A third feature of Karakoram glacier surges is their rapid initiation and termination phases, lasting months to years. Surge initiation and termination phases refer to the start and end of the surge. Termination occurs after the surge, when the glacier has become virtually stagnant (Singh, Singh, and Haritashya, 2011, pp. 416-417). During the late summer of 2009 the Shakesiga Glacier flowed at 400 m a-1, but reached its maximum velocity of 2000 m a-1 by midsummer of 2010, indicating the initiation phase took place during winter. Shakesiga surge decelerated to 1100 m a-1 and terminated during the early winter of 2010 (Quincey et al., 2015, pp. 1292-1293). However, Alaskan glacial surges have a much more abrupt termination phase than initiation phase, tending to last several days as opposed to months (Quincey et al., 2015, p. 1297). A final typical feature of Karakoram glacier surges is that they do not seem to be seasonally controlled. Surges usually initiate during winter months when drainage efficiency is low and terminate during summer months, when drainage efficiency is high (Quincey et al., 2015, p. 1288). However, this is not the case in the Karakoram region as surges have initiated and terminated in irregular months. The Skamri Glacier initiation phase took place more toward the summer season than the winter and the Shakesiga surge initiated and terminated during winter months (Quincey et al., 2015, pp. 1292-1293). This suggest that Karakoram surges are thermally rather than hydrologically controlled, coinciding with high-altitude warming from long-term precipitation and accumulation patterns (Quincey et al., 2015, p. 1290). If Karakoram glacier surges are thermally controlled it may explain why their features are different to other surge areas in the world. The features of Karakoram glacier surges are an anomaly when compared to other surge areas in the world, such as Alaska, although they do share many similarities with Svalbard glacier surges. Their characteristics have led many geographers to the conclusion that they are thermally controlled and this could be a possible cause of their differences compared with other glacier surges. Yet the dominant surge mechanism still remains unclear. Reference List Copland, L., Pope, S., Bishop, M.P., Shroder, J.F., Clendon, P., Bush, A., Kamp, U., Seong, Y.B. and Owen, L.A. (2009) Glacier velocities across the central Karakoram, Annals of Glaciology, 50(52), pp. 41-49. doi: 10.3189/172756409789624229. Editors of Encyclopà ¦dia Britannica (2016) Karakoram range | mountains, Asia, in Encyclopà ¦dia Britannica. Available at: https://www.britannica.com/place/Karakoram-Range (Accessed: 10 October 2016). Hewitt, K. (2007) Tributary glacier surges: An exceptional concentration at Panmah glacier, Karakoram Himalaya, Journal of Glaciology, 53(181), pp. 181-188. doi: 10.3189/172756507782202829. Mayer, C., Fowler, A.C., Lambrecht, A. and Scharrer, K. (2011) A surge of north Gasherbrum glacier, Karakoram, china, Journal of Glaciology, 57(205), pp. 904-916. doi: 10.3189/002214311798043834. Quincey, D.J., Glasser, N.F., Cook, S.J. and Luckman, A. (2015) Heterogeneity in Karakoram glacier surges, Journal of Geophysical Research: Earth Surface, 120(7), pp. 1288-1300. doi: 10.1002/2015jf003515. Singh, V.P., Singh, P. and Haritashya, U.K. (eds.) (2011) Encyclopedia of snow, ice and glaciers. Dordrecht: Springer Verlag. Sinha, R. and Ravindra, R. (eds.) (2012) Earth system processes and disaster management. Germany: Springer-Verlag Berlin and Heidelberg GmbH Co. K.

Difficulties in Formulating Macroeconomic Policy :: Economics Policy Making Essays

Difficulties in Formulating Macroeconomic Policy Policy makers try to influence the behaviour of broad economic aggregates in order to improve the performance of the economy. The main macroeconomic objectives of policy are: a high and relatively stable level of employment; a stable general price level; a growing level of real income (economic growth); balance of payments equilibrium, and certain distributional aims. This essay will go through what these difficulties are and examine how these difficulties affect the policy maker when they attempt to formulate macroeconomic policy. It is difficult to provide a single decisive factor for policy evaluation as a change in political and/or economic circumstances may result in declared objectives being changed or reversed. Economists can give advice on the feasibility and desirability of policies designed to attain the ultimate targets, however, the ultimate responsibility lies with the policy maker. Policy makers are continually trying to formulate policies that will help the economy achieve these objectives. However, there are numerous difficulties which policy makers are faced with. In a democratic society like the UK, the macroeconomic objectives are not under the sole control of the Government. For example, the level of employment depends on the decisions not only of the government (e.g. for employment in the public sector) but also of private firms as to how many workers they wish to employ. Also, membership to international organisations (i.e. WTO or EU etc.) means that the international regulations and directives must be adhered to and cannot be altered. Therefore, the freedom of action of the policy maker is restricted, as the new policy must function along side existing international policies. Most policies are designed against the background of a theoretical model. However, there is no ‘true’ model and so different policy makers and economists may have different views to certain economic variables. Therefore, each policy maker will formulate different policies based on their views in order to achieve the same objective. For example, Keynesians view that consumption expenditure depends upon current disposable income. Whereas Milton Friedman argued that consumption is related to permanent rather than current income. He was therefore more sceptical about he usefulness of a tax change for stabilisation purposes than one who believes that consumption depends on current disposable income. Policy makers usually use Fiscal policy to alter the level, timing or composition of government expenditure and/or the level, timing or structure of tax payments. And they use Monetary policy to alter the supply of money and/or credit and also to alter interest rates. But some policies are not always successful; a good example was the decision to use monetary policy to solve the liquidity trap. This policy aimed to reduce interest rates and stimulate investment

The Electoral Systems of Britain and Sweden Essay -- comparative polit

The Electoral Systems of Britain and Sweden The quality of a democracy is regulated by the electoral system that awards seats in democratic assemblies to those seeking office. This paper will compare the electoral systems of the parliaments of the United Kingdom (herein called Britain) and Sweden in order to determine which country has the preferred electoral system. The quality to be measured is the fairness of democratic representation, which is to say, how properly the various public interests are represented and how much control voters have over their government. The first part of the paper will study each electoral system separately, looking at the mechanics of how the members of parliament are elected, what kind of political party system can participate in the parliament, and how the parties go about setting up the executive branch of government. The second part will compare and contrast the two parliaments, and afterwards it will be shown how one of the parliaments represents its electorate more fairly and democraticall y. These two countries have been chosen because Britain?s electoral system is characterized as a system of single-member districts, and Sweden?s system is considered to provide proportional representation, which strives to elect members of political parties in the proportions in which votes were cast. The Electoral System in Britain Voters in Britain elect members of the House of Commons, the more powerful lower house of the Westminster Parliament, for maximum terms of five years. Each one of the 659 electoral districts sends one member to the House of Commons after being chosen on the basis of plurality. Candidates obtain their places on the ballot by being nominated by their party. Frequently the w... ...). "The Election of the Swedish Riksdag, September 2002," Representation. 39(2): 146-156. Kavanagh, Dennis (2000). British Politics: Continuity and Change. New York: Oxford University Press. Mattila, Mikko and Tapio Raunio (2002). "Government Formation in the Nordic Countries: The Electoral Connection," Scandinavian Political Studies. 25(3): 259-280. Metcalf, Michael F (1987). The Riksdag: A History of the Swedish Parliament. New York: St. Martin?s Press. Nation Master (2003). "British House of Commons." St. Petersburg, Florida: WikiMedia. . Nation Master (2003). "Elections in Sweden." St. Petersburg, Florida: WikiMedia. . Petersson, Olof et al. (1997). Report from the Democratic Audit of Sweden 1996. Stockholm: SNS Fï ¿ ½rlag.

Effect of injection or Suction and Magnetic Field on oscillatory flow i

An oscillatory hydrodynamic flow through porous medium bounded by two horizontal parallel porous plates in the presence of transverse magnetic field is investigated. Both the stationary plates are subjected to the same constant injection / suction velocities ( V ). A closed form analytical solution is obtained and the affects of different parameters (Injection / suction Parameter, Darcy number, Hartmann number, Frequency of oscillations etc.) on velocity field and skin-friction are discussed with the help of graphs in details. Key words: Oscillatory flow, Magnetic field, Injection / suction, Planner channel. 1 Introduction: The flows of fluids through porous media have attracted the attention of a number of scholars because of their possible applications in many branches of science and technology. In fact a porous material containing the fluid is a non-homogeneous medium but it may be possible to treat it as a homogeneous one, for the sake of analysis, by taking its dynamical properties to be equal to the averages of the original non-homogeneous continuum. Thus a complicated problem of the flow through a porous medium gets reduced to the flow problem of a homogeneous fluid with some additional resistance. The hydrodynamic channel flow is a classical problem for which exact solution can be obtained Schillicting [1]. Eckert [2] obtained the exact solution of Navier-Stokes equations for the flow between two parallel porous plates with constant injection/suction. In view of numerous important engineering and geophysical applications of the channel flows through porous medium, for example in the fields of chemical engineering for filtration and purification processes, in the fields of agriculture engineering f... ...Sci. Acad. 75(1) (2009): 41-48. 14 Garg, B.P., Singh, K.D. and Pathak, Reena (2011). An analysis of radiative, free-convective and mass transfer flow past an accelerated vertical plate in the presence of transverse magnetic field, J. Rajasthan Acad. Phy. Sci. 10(1) (in press). 15 Moreau, R. â€Å"MagnetoHydrodynamics†. Kluwer Academic Publishers, Dordrecht (1990). 16 Makinde, O.D. and Mhone, P.Y. â€Å"Heat Transfer to MHD Oscillatory Flow in a Channel Filled with Porous Medium†. Rom. Journ. Phys. 50 (2005): 931-938. 17 Mehmood, A. and Ali, A. â€Å"The Effect of Slip Condition on Unsteady MHD Oscillatory Flow of a Viscous Fluid in a Planer Channel†. Rom. Journ. Phys. 52(1-2) (2007): 85-91. 18 Singh, K.D. and Garg, B.P. â€Å"Radiative Heat Transfer in MHD Oscillatory Flow through Porous Medium Bounded by Two Vertical Porous Plates†. Bull. Cal. Math. Soc.102(2) (2010) 129-138.

Everybody Hates Chris

â€Å"Everybody Hates Chris† I have watched Everybody Hates Chris ever since I was 10 years old and I still find it to be the best comedic television show on Nick at Night. When you have Chris Rock as the narrator, how can you not laugh? This show is considered to be one of the best shows on TV for family’s and younger children. It normally plays at 9:00 pm every weekday on Nick at Night. You can sometimes catch it weekdays around noon on B. E. T. I like having the show on at this time because on school nights it gives me something to relax to and laugh at.I love everything about this show because it has a common aspect to each episode, has many genres, and the characters are fun and easy to relate to. The main character of the TV show is named is Chris and every episode revolves around him and his family. Chris is a normal child who has a sister, brother, mother and father. They live together in NY, where they spend their days working and going to school just like any other family. He is the oldest child, so he is in charge of taking care of his younger siblings Drew and Tonya.While Chris is at school, he is the only black kid in his class so he gets picked on and judged all the time. Him and his best friend, Greg, are what you would call the nerds or losers in the class. His sharpness and character helps Chris throughout the show but he will have to go through many obstacles, at home and in school, in order to grow up. In every episode the plot is that Chris, the oldest child in the family, must make certain decisions and act upon helping the people he is surrounded by. Each episode he is given a certain task or problem he has to solve.The best part of the show is that no matter what Chris does in the end someone hates him for what he did. For example, in one episode he has to make $100 to pay back his dad for buying tickets to a concert. He lied to his dad that he needed books for the new job, which comes back to haunt him. The first thing he d oes was find a job, which happened to be at a funeral home. But of course Chris didn’t read the agreement he signed and didn’t see that he does not get paid in cash. Instead they give him money for books to learn more about the funeral home process.Then the day the concert arrives the manager makes Chris stay until he finishes all his work. Chris was left sitting and carving the caskets until the next day which meant he didn’t make the concert. He was okay with this because he learned something new and had a fun time with the manager. Never the less in the end he goes to receive his pay check to pay-back his dad and realizes it isn’t cash! â€Å"What is this, I thought I was getting paid, not a gift certificate for books! † explained Chris. â€Å"You mean you didn’t use my money for books when I gave you that $100! Chris’s dad screamed. â€Å"Well Chris you still owe me $100 dollars and are in a lot of trouble. † You can start to see the trend because in the end his dad is upset with him and he can never make everyone happy. This is where the different genres come into play because you have this comedy TV show that also has suspense and humorous drama. Some scenes can also dramatic relief and heartfelt ones. Most of the heartfelt scenes come when Chris’s mother explains the situation to him and helps him solve his problems.An example would be where she sat him down to talk about why he shouldn’t have skipped school. This plays a huge role in the reoccurring theme of Everybody Hates Chris. Every episode you can one hundred percent count on having the same theme, where Chris is given a problem and must find a way to solve it. Then you will have his parents and siblings argue with him or one another. His mother can be very outspoken at times! While his father, on the other hand, is more conscious about their money and how it affects him. His siblings like to get him trouble a lot and they succ eed at doing this.After all the action happens Chris will usually have a break through and solve his problem. Then he thinks he has done a good job and got away with whatever he did wrong. When in the end, all of the viewer’s know someone always makes that solution turn around and have them hate Chris. This TV show does an excellent job of portraying a typical family back in the day where you have three children; and normally the father would work two jobs with the expenses being so high. It is a great stereotypical family that will make your own family laugh at the things they do.Viewers find it humorous because they can relate to the jokes and activities Chris’s family pulls during the TV show. I know that I have related the show to my own family multiple times. This is a great family show that will let you relax and give you a few laughs to relieve all that stress. If you love to be with your family and laughing at comedy TV shows, I would recommend this show becaus e I believe it is the best one out there. Compared to today’s shows, Everybody Hates Chris, sticks to the family appropriate level and will have your family laughing for hours at a time.