Saturday, January 25, 2020

Advantages And Disadvantages Of Biotechnology Biology Essay

Advantages And Disadvantages Of Biotechnology Biology Essay The objective purpose of this assignment is the, familiarization of the connection between the biotechnology and agriculture; bringing on the contribution of the biotechnology science to agriculture. On the way to assess the specific contribution, citations of positives and negative effects are allocated as well as thoughts and worriers regarding the future of the association between biotechnology and agriculture. Ever since agriculture was developed, before 10 000 years (Sample et al .,2007), humans were attempting to invent new crops as well as and new techniques in order to make the production much more easy. Over the effort of the humanity to produce the best quality products as possible and in more quantities, new technologies and techniques were introduced allowing agriculture for further development. Standing on this piece of evidence it is a fact that most of the technological innovations where integrated to the agricultural science over the last 200 years.(Krimsky et al.,1996). On this improvements of the agricultural science it is appropriate to include the fertilizers, the plant breeding , the mechanization of the procedure as well as the management of the plant enemies using plant protection products (e.g herbicides, pesticides, fungicides).(Krimsky et al., 1996) However the discovery of recombinant DNA back in the early seventies opened a new era in modern agriculture introducing biotechnology into the field ,allowing the scientists to develop novel ideas of innovations in food production.(). As biotechnology is defined according to  the Convention on Biological Diversity, any technological application  uses biological systems, living organisms or their derivatives  create or modify products for specific use  »(Convention on  Biological Diversity, 1992).  This definition includes medical and industrial  applications and tools and techniques used in  agriculture and food production (FAO, 2004).  Among the best known  applications, is the creation of genetically modified foods, cloning  the sheep Dolly, the complete sequencing of the human genome and the  developments in stem cell research.  Like all technologies, so the  Biotechnology is associated with known and unknown risks and threats.  That in itself is a fo od source for the media to  the production of stories that attract readers (Gaskell et al., 2003). Benefits that may occur with the usage of genetic modified organisms had to do with several values that the humanity has set as priority objectives. Moreover the supporters of the agriculture biotechnology state that with the usage of GMOs the role of the sustainable environment is bounded; due to the fact that the main target is the reducing of the usage of pollutants such as pesticides and herbicides. An extra fact that is settled is that the population of the earth is about 6 billion; and with the possibility that there is a continuous trend for further increase.  Indicative, it is expected that over the next 50 years the worlds population will be doubled. With this fact, it is remarkable to declare that the humanity has to ensure that the quantities of food that will be produced ought to be adequate in order to feed the entire population of the earth. Perhaps this will be a huge challenge, whereas the agricultural sciences have the great responsibility. Standing on these factors; the supporters of genetically modified products, have highlighted a numeral benefits that may humanity obtain from their use. The Genetically Modified Organisms, in view of the fact that they have been introduced a gene from another organism, they are able to acquire properties compared with the natural plants as they have the ability to confer resistance to various biotic and abiotic factors such as resistance to various plant protection products from herbicide and pesticide as well as  salinity drought conditions. With the most usual method in conventional agriculture to protect the crops from pest insects to be spraying the plants with different chemical insecticides; have a lot of bad consequences. Even if the use of chemical insecticides is prudential spray or forced; the usual results of the non-rational usage of the chemical pesticides by farmers, lead to the fait accompli, which usual have to do with the huge ecological consequences. This method comprises negative effects on the environment and to the ecological balance.  Apart from the harmful insects to crops, the chemical pesticides may destroy many other species of insects which they might be consider as beneficial as well as natural enemies to the pests. The consequences result in a genuine ecological disruption. Furthermore, the excessive use of insecticides may create resistance of the insects so that to meet those needs is even what harmful. Additionally most chemical insecticides have toxic effects even for humans, with residu es of pesticides that may possibly end up through food chains. On this aspect, biotechnology has given a very good solution; deriving plants which have the power to react autonomously as bio insecticides. For this purpose, was isolated a gene from the soil bacterium Bacillus thuringiensis which can encode a protein with a natural insecticide action.(Pentheroudakis).  This protein is a ÃŽÂ ´-endotoxin and has toxic effects in an environment with pH 7,5 to 8,which can be observed in insects and not in the stomach of man.  The certain bacterium Bacillus thuringiensis is used as a biological insecticide for many years, and is grown in bioreactors and then can be sprayed on crops in order the plants to have the appropriate protection from the pests.  This solution is considered environmentally friendly since it excludes the use of hazardous chemicals and pesticides and does not lead to adverse health and environmental (standards 1999, deMaagd 1999). But also apart from its fucti on as a solution , it is also considered as non an economic solution since of the fact that Bacillus thuringiensis has a limit time of life and thats why it has have repeated sprays.(Penteroudakis) .Gene technology made possible the transformation of the particular gene which can produce the ÃŽÂ ´-endotoxin in plants; enabling plants to be protected from the destructive action of certain insects such as Lepidoptera.  There are several strains of Bacillus thuringiensis and each strain produces a different toxin, which acts in a particular species of insects (Estruch et al, 1996).  This ensures the plants resistance to certain insect species by introducing a particular gene (the genes are called genes Bt). One of the applications of Bt producing plants is to resist the European corn borer, which is the main enemy pest of the U.S. corn crop and also responsible for damages cost $1 billion annually (Huang et al, 1999).   According to the company Monsanto, the production of tran sgenic Bt crops reduce the use of chemical pesticides by 1 million litters per year. The nematode worms, as soil organisms can cause serious damages to the crops. Parasitic nematodes can create serious trouble at a wide variety of plants and are responsible for significant crop losses.  Also the eggs survive in the soil under adverse conditions for many years.  Another thing that has to be concern is that it is extremely difficult to militate with parasitic nematodes particularly after the withdrawal of methyl bromide. With the contribution of biotechnology scientists found that various plants are resistant to nematode worms.  For the resistance of certain genes are responsible which have been isolated.  An example is the gene Gro1 potato, which confers resistance to Globodera rostochiensis.  This has opened the way for the possible introduction of these genes into crops to address the challenge of the filamentary.(Jung et al,1998) Crop plants genetically modified to withstand very  powerful and widely used herbicides, can help  to reduce environmental impact of the widespread use   herbicides.  One example is the creation of GM soya from the company Monsanto, which is not affected by the herbicide Roundup  ®,   product of the same company   (http://www.monsanto.com/monsanto/ag_products/input_traits/products/round   up_ready_soybeans.asp).   The resistance of plants against viral diseases,  fungi and bacteria will improve the performance of the fields.   The company Monsanto released on the market in 1996, the genetically modified soybean, which is resistant to the widely used herbicide Roundup.  The genetically modified soybean was introduced the bacterial gene CP4-EPSPS that produces an enzyme resistant to the action of the herbicide.  The Roundup suppresses the activity of natural plant EPSPS enzyme and destroy the plants.  Genetically modified plants, however, producing a resistant enzyme is not affected by the action of Roundup.   The genetically modified soya has caused a storm of reactions in Europe.  Soybeans are particularly important because its derivatives are used in many processed foods such as soya lecithin used in the production of chocolates and baking.  In 1998 one third of total U.S. soybean crop was genetically modified, while in 1999 more than half [Mitten et al, 1999].   Another possible benefit of the usage of biotechnology in agriculture, is the possible creation in the future of seeds resistant to cold (the  introduction of the gene of antifreeze protein from fish  Antarctica), in salinity or drought, which will allow   crop plants in soils inhospitable to date indicative (Zhang and  Blumwald, 2001).   And the contribution of biotechnology does not stop here .It is possible the creation in the future, seeds and crops with high  nutritional value (Ye et al., 2000) which will allow for better nutrition  children in the Third World.One good paradigm to support this   Almost half the worlds population eats rice (Oryza sativa L.), at least once a day (IRRI undated). Rice is the staple food among the worlds poor, especially in Asia and partsof Africa and South America. It is the primary source of energy and nutrition for millions.Thus, improving the nutritional quality of rice could potentially improve the nutritionalstatus of nearly half the worlds population, particularly its children. Commodity ricecontains about 7% protein, but some varieties, notably black rice, contain as much as 8.5%(Food and Agriculture Organization 2004). The most limiting amino acid in rice is lysine.Efforts to increase the nutritional value of rice target protein content and quality along with key nutrients often deficient in rice-eating populations, such as vitamin A and iron.The International Rice Research Institute (IRRI), Philippines, is a primary center for riceresearch and development of improved varieties. In 1999, Dr. Momma and colleagues at Kyoto University, Japan, reported a geneticallyengineered rice having about 20% greater protein content compared with control rice (Momma et al. 1999). Transgenic plants containing a soybean gene for the protein glycinin contained 8.0% protein and an improved essential amino acid profile compared with 6.5%protein in the control rice. Also the production potential in the future of edible vaccines and drugs   in potatoes and tomatoes (Daniell et al., 2001).  Plants such as poplar, can the genetic modification to  used for phytoremediation contaminated by heavy metals in soils (Rugh, 2004). Apart from the advantages that biotechnology can donate to the agriculture sciences; there are and a lot of factors that as scientists and as consumers we have to be aware. There are ethical factors and other parameters that have to mostly with the environmental subjects that have to be in mind. Nearly all have expressed their concern about GM food and   the possible effects on health and safety of humans in   environment, economic situation of farmers and the poor of the world  making agriculture one of the few, powerful companies: environmental  activist organizations (such as Greenpeace, the Network against GMOs,  the GMWatch), religious organizations, citizens groups sensitized  (such as the Organic Consumer Association), researchers and scientists (such as  ETCgroup, the Institute of Science in Society, by The American Society of  Environmental Medicine, the Union of Concerned Scientists).   Experiments and studies  have identified a number of risks associated with the use of GM foods. Environmental hazards  that they might derived is firstly the challenge of unintended harm to other species. As an example of this;  laboratory studies have   shown that pollen from B.t.  GM corn caused high rates  of mortality in the larvae of the Monarch butterfly. (Losey etal., 1999)   The possible reduction of biodiversity, is another threat of the GM crops against the environment.  The widespread use of GM crops may  lead to reduced biodiversity in neighboring crops  GM ecosystem.  Because GM products are likely to have   competitive advantage over its natural wild varieties of plants,  the latter may not be able to survive with its attendant  reduction or extinction of wild varieties (Conner et al., 2003, Vacher et  al., 2004).  The GM crops can be fatal for others   organizations that share the ecosystem, as species of birds  (Watkinson et al., 2000).   The Horizontal gene transfer is another thing that worries the scientific world regarding the usage of GMOs. The introduction of exotic species into new   environments can cause extensive and irreversible  destruction through the horizontal transfer of genes, transport  ie genes among related organisms, and microbes in or   mammalian cells (unlike the vertical transmission is the transfer  genes from one generation to the next).  The transfer and integration  these genes would result in genetic modification  agencies beyond the estimates of researchers.  Such transfers   can lead eg  to create super weeds (literature  Review Ho and Cummnis, 2008).   General health problems in animals is another think that we have to be aware. A variety of studies in animals suggest that  consumption of GM foods can cause serious health problems  such as infertility, hormonal dysfunction, accelerated aging,   dysfunction of genes associated with cholesterol synthesis,  problems in the regulation of insulin, cell labeling and  protein synthesis and changes in the structure of the liver, kidney, spleen  and gastrointestinal (Ewen and Pustzai, 1999, Finamore et al.,   2008, Malatesta et al., 2008, Kilik and Akay, 2008, Kroghsbo et al., 2008).   Another object that we have to have in mind is allergies, which is the biggest, so far, side effects of GM foods   and is likely to increase the incidence of dangerous  allergies.  Many people and especially children are allergic to edible  plants such as peanuts, an allergy which can lead  death because of some proteins produced by them.  Projects  to increase the nutritional value of soybeans in the introduction to  genome of a gene from the Brazilian peanut abandoned  when research showed that the transgenic soy can promote allergic  reactions to people predisposed (Nordlee et al., 1996).  There  evidence that the genetically modified plant products are  even higher allergenic potential than conventional plants.   Several studies have been reported in the literature, suggesting that  the process of genetic modification may increase the allergen  potential of plants.  For example, levels of inhibitor  trypsin-allergenic agent of soybean are 27% higher  in GM soy.  Also, the Bt toxin in GM corn may  trigger allergic immune response since it contains   sequences that match EN identified allergens  (literature review Smith, 2007).  Scandal had caused  case of Bt corn Starlink à ¢Ã¢â‚¬Å¾Ã‚ ¢ of Aventis, which  grown in the U.S. from 1998 to feed and industrial  purposes and not for human consumption because of concerns of  scientific staff of the U.S. Environmental  Protection that can cause allergic reactions.  In 2000,  modified corn Starlink à ¢Ã¢â‚¬Å¾Ã‚ ¢ s put into tacos and  another 300 food products containing corn in various parts of  world, making visible the gaps that existed in the management of possible  risks from the use of GM (Bucchini and Goldman, 2002). Finally   A key argument of the proponents of GM crops, large  production and distribution companies modified seeds and lion  scientists, is the largest agricultural performance of biotechnology  crops, an argument which appears to be rebutted by the recent.  Research the Union of Concerned Scientists in which genetically   modified crops ultimately enhance the appearance of resistant  herbicides weeds thus reducing the production and leading to smaller  crops (Gurian-Sherman, 2009).  In addition, as mentioned previously, the GM seed  moving is patented and in future will also be sterilized  causing billions of poor farmers to buy expensive seeds each   time with disastrous results (Whitman, 2000). The application of genetic engineering resulted in the creation of genetically modified organisms resistant pathogens.  This became possible to transfer resistance genes, especially with the help of Ti plasmid of Agrobacterium tumefasiens, in crop plants of great economic importance, such as corn, soybeans, cotton, tobacco, oilseed k.al.  The most commonly used gene is the Bt gene coding for the production of a toxin able to counteract the harmful insects on crops.  The isolation of the gene from the bacterium Bacillus thuringiensis and the introduction of a plant species resulted in the creation of a broad class of transgenic plants resistant to attacks of insects, Bt plants.  The cultivation of Bt plants have the advantage of avoiding the use of chemical pesticides, which contain toxic and hazardous substances.  It is also important to create GM plants resistant to nematodes and herbicides, particularly in widely-used herbicide Roundup.   The cultivation of transgenic plants but can cause various environmental problems.  This is the transfer of genes to plants or weeds through pollen and thus creating heat-parasites, prevalence through natural selection of resistant strains of insects to the toxin Bt, the unexpected effect of Bt insect toxin safe for agriculture and the possible abuse  the creation of herbicide-resistant plants on them.   There is no doubt that the establishment and cultivation of genetically modified plants will not only continue but probably will in future become the dominant form of farming.  The attitude of scientists, especially those related to environmental protection, towards GMOs should be responsible and critical.  The new research data, the largest observation time, economics and the comparison of the potential risks with the multiple benefits will help shape a scientifically informed view on the impact of GMOs into the environment.

Friday, January 17, 2020

Mold level control devices and systems

IntroductionContinuous casting of steel is a procedure with many factors involved. If any of those factors are non controlled it can hold inauspicious effects to both the steel produced and the equipment bring forthing it. This paper will briefly travel over the demands and equipment needed to adequately command the degree of steel in a uninterrupted casting cast every bit good as jobs that arise if non decently controlled.Reason For ControlThe steel ‘s semilunar cartilage ( top of liquid ) needs to be monitored and controlled for a figure of different grounds. The most obvious grounds are to forestall the steel from overruning the cast or from the cast going drained. Both of those instances would ensue in liquefied steel falling onto the equipment below the cast, doing harm and halting of the procedure. Steel over the cast will slop out and it will besides forestall lubrication from come ining the cast pit. In the instance of excessively small steel nowadays in the cast, the s um of clip the steel is in contact with the cast will be excessively short. If the outer part of the steel does non pass adequate clip near the cast walls, a shell of equal thickness to incorporate the internally liquid steel will non be formed. This would do a jailbreak, leaking molten steel and holding production every bit good. If it was merely those two extremes mentioned above, the allowable degree in the cast would be big and merely necessitate a simple method to keep steel degree within that scope. But it has been noticed industrially that fluctuations in the semilunar cartilage degree can hold noticeable effects on the surface quality of the ensuing product1,2. The formation of laps and bleeds on the steel surface every bit good as deepened oscillation markers have been accredited to limitations on lubrication flow caused by traveling semilunar cartilages. Laps and bleeds are proposed to be caused when lubrication is blocked and the outer steel shell is allowed to touch the cast wall1. That contact bonds the two surfaces together doing cryings to organize in the steel tegument let go ofing liquefied steel. Even the cause of lubrication loss can be its ain job. If the limitation is caused by the semilunar cartilage making the scoria rim, the rim can do denting in the steel surface and can be broken off onto the steel surface through scratch ( Fig. 1 ) . The deepness of oscillation Markss formed by the cast ‘s oscillation is related to the fluctuation way of the meniscus2. Since oscillation Markss are a byproduct of the speed differences between the cast and steel during denudation, a alteration in the semilunar cartilage degree would alter the comparative speed between the two. So, when the semilunar cartilage rises, more steel progresss per oscillation shot which increases the distance between markers but besides increasing the deepness of the marker ( Fig. 2 ) . On the other manus, when the steel degree in the cast lowers, the antonym is seen and the markers are closer together but each is shallower because of it.Equipment To MonitorThe basic mold degree control systems relied merely on feeling devices at the cast to supervise the degree of the steel within it. Two chief options for the finding of steel degree are thermally supervising the cast or optical review of the meniscus1,3. The thermic method requires the installing of thermocouples within the cast above the coveted steel degree. The temperature at the thermocouples can be used to find their distance from the liquefied steel. The job with this method was complication in graduating it, since the temperature-to-distance computation would necessitate the thermocouples ‘ exact distances up the cast and within the cast every bit good as the heat transportation rate through the cast, its chilling rate and the initial temperature of the steel. A presently preferred method is an optical detector positioned above the cast that straight observes the steel degree. Other countries that require monitoring are the usher axial rotations, the tundish, and the province of the tundish-to-mold flow regulator ( either a stopper rod or a slide gate valve ) ( Fig. 3 ) 4. The set projecting velocity of the steel is monitored through the usher rolls below the cast. The tundish is monitored to find the deepness of steel in the tundish since its ensuing metallostatic force per unit area caput will impact the flow velocity into the cast. The place of the flow regulator is required so that the cross sectional country of the tundish-to-mold flow can be calculated. Many parts are needed to interact with each other to travel a flow regulator3. At the regulator itself there are motion limitation forces to see. For slide gate valves both clash with its holder and force per unit area from the fluxing steel can impact motion, while for a stopper rod clash against the liquid steel every bit good as perkiness within that liquid demand to be considered. About all flow regulators are moved by usage of a hydraulic device. The force per unit area within a hydraulic cylinder is non ever of a degree to do motion, so the hold clip to construct up equal force per unit area to travel the flow regulator should be noted. The other beginning of response hold is from the electrical detector commanding the hydraulic system. All electrical switches have a deadband value which is the minimal electromotive force signal needed to trip a response. Taken together, the holds caused from electromotive force and force per unit area build up and get the better ofing clash ca n show about half a 2nd hold between computing machine bid and physical accommodation.Computer Control MethodsAll the centripetal readings are inputted into a dynamic control system that determines what accommodations are needed to command the steel degree in the cast. The exact type of control system used presently is a closed-loop automatic control regulator ( Fig. 4 ) 5. This type of accountant does non necessitate human input, regulates the end product ( in this instance steel degree ) to a set value, and mentions prior end product readings for future determinations. The accountant is divided into two chief countries of concern: bid response and perturbation rejection3. Command response trades with doing major accommodations to the system to make the programmed steel level3. This is accomplished by executing a mass-flow balance for the mold4. This portion of the accountant modus operandi is dominate when the cast is ab initio make fulling up or when the degree of steel demands to be changed to a new set point. Once the coveted degree is reached in the cast, all that is required of this portion of the control plan is to maintain the incoming volume rate equal to the outgoing volume rate. The outgoing rate is equal to the projecting velocity from the usher axial rotations multiplied by the face country of the casting. The ingoing rate is based on the tundish-to-mold flowing velocity caused by the deepness of steel in the tundish and its corrected flow country. Adjustment is needed for computation of the ingoing volume rate since frictional forces curtailing flow alteration based on flow speed and turbulency. Disturbance rejection trades with minimising the mistake difference between the current steel degree and the mark steel level3. When the steel degree is near to the mark value, the bid response is used maintain the current mold degree while the perturbation rejection everyday Acts of the Apostless to rectify for minor fluctuations in steel degree. These fluctuations from the mark are normally the consequence of nose clogging, but can besides be caused by other things. There are two major methods for minimising mistake, through a formulated response or through an expert system. A expression modus operandi at the simplest contains a relative invariable that is multiplied by the mistake to rectify the end product system4. While this corrects for the mistake it besides can bring forth extra fluctuation in the steel degree, unless a differential invariable is besides used. By multiplying a changeless by the rate of steel degree fluctuation the rectification response is damped and will settle to the mark degree bit by bit. By utilizing this, the mark degree will non be overshoot ensuing in changeless gap and shutting of the flow regulator and seting unnecessary wear on it. Additional expression parts, like a fuzzed control term, can be used to accelerate response4,6. An expert system everyday uses pre-programmed responses for outputs7,8. It takes the input degrees, and based on anterior technology cognition, picks a predetermined action. While this everyday type is faster and simpler to make than a formula modus operandi, it does non hold the same degree of preciseness.DrumheadThe surface quality of uninterrupted dramatis personae steel can be greatly affected by motion of the steel semilunar cartilage in the cast. To acquire the best surface quality possible, the fluctuation scope of the semilunar cartilage should be minimized every bit much as possible. Through supervising the volume flow rates into and out of the cast, every bit good as the alteration in steel degree, the steel degree in the cast can be controlled. In add-on, jobs with steel flow into the cast can be corrected for by usage of computing machine modus operandis.Mentions1. S. Kumar, B. N. Walker, I. V. Samarasekera, and J. K. Brimacombe: â€Å"Chaos at the Meniscus – The Genesis of Defects in Continuously Cast Steel Billets† , 1995, 13th PTD Conference Proceedings, pp.119-141 2. B. G. Thomas, M. S. Jenkins, and R. B. Mahapatra: â€Å"Investigation of Strand Surface Defects Using Mould Instrumentation and Modelling† , 2004, Ironmaking and Steelmaking, Vol.31, No.6, pp.485-494 3. H. L. Gilles, J. A. Stofanak, I. W. Whiteman, and J. W. Brunicon: â€Å"Dynamic Modeling of Slab Caster Mold Level Control† , 1995, 13th PTD Conference Proceedings, pp.263-277 4. D. Lee, Y. Kueon, and S. Lee: â€Å"High Performance Hybrid Mold Level Controller for Thin Slab Caster† , 2004, Control Engineering Practice 12, pp.275-281 5. G. F. Franklin, J. D. Powell, and A. Emami-Naeini: Feedback Control of Dynamic Systems, 4th Ed. , 2002 6. E. J. Saarelainen, P. Lautala, M. Inkinen, and J. Johansson: â€Å"Steel Caster Mold Level Control Using Fuzzy Logic† , 1995, 13th PTD Conference Proceedings, pp397-402 7. Y. S. Kueon, and S. Y. Yoo: â€Å"Mold Level Control in Continuous Caster Via Nonlinear Control Technique† , 1997, Automation in the Steel Industry 8. T. Watanabe, K. Omura, M. Konishi, S. Watanabe, and K. Furukawa: â€Å"Mold Level Control in Continuous Caster by Neural Network Model† , 1999, ISIJ International, Vol.39, No.10, pp.1053-1060

Thursday, January 9, 2020

The Great Gatsby By F. Scott Fitzgerald - 1690 Words

The original conception of the American dream is that there is equal opportunity in being able to achieve upward mobility. However, in the 1920’s that dream had deviated from its initial idea, and transformed to the achievement and flaunting of affluence and engrossing oneself in debauchery. The Great Gatsby, written by F. Scott Fitzgerald, is not only a story about the death of the original American dream, but also sheds light on the American nightmare: the idea that one caves into the corruption of the dream and fails. Jay Gatsby flounders in his attempt to achieve the American dream due to his blindness to the world around him, and his inability to release his grasp on the past and progress forward constituted by his impractical and ceaseless pursuit of Daisy Fay Buchanan, eventually directing himself towards the path of a nightmare. In The Great Gatsby, Jay Gatsby preys more upon the life he once lead, rather than the life he leads currently. Prior to Gatsby, a man by the name of James Gatz roamed the earth. However, his parents lived an impecunious lifestyle and â€Å"his imagination had never really accepted them at all†, therefore in an attempt to separate himself from his family, â€Å"Jay Gatsby sprang from his platonic conception of himself† in order to climb the social ladder, â€Å"[he] cannot remain as James Gatz, the son of unsuccessful farmers and [must] become Jay Gatsby† (Fitzgerald 98, Stocks). Additionally, the conception of Jay Gatsby sprung up as an attempt to onceShow MoreRelatedThe Great Gatsby by F. Scott Fitzgerald1393 Words   |  6 PagesF. Scott Fitzgerald was the model of the American image in the nineteen twenties. He had wealth, fame, a beautiful wife, and an adorable daughter; all seemed perfect. Beneath the gilded faà §ade, however, was an author who struggled with domestic and physical difficulties that plagued his personal life and career throughout its short span. 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Scott Fitzgerald1607 Words   |  7 Pages The Great Gatsby is an American novel written in 1925 by F. Scott Fitzgerald. One of the themes of the book is the American Dream. The American Dream is an idea in which Americans believe through hard work they can achieve success and prosperity in the free world. In F. Scott Fitzgerald s novel, The Great Gatsby, the American Dream leads to popularity, extreme jealousy and false happiness. Jay Gatsby’s recent fortune and wealthiness helped him earn a high social position and become one of the mostRead MoreThe Great Gatsby By F. Scott Fitzgerald1592 Words   |  7 PagesMcGowan English 11A, Period 4 9 January 2014 The Great Gatsby Individuals who approach life with an optimistic mindset generally have their goals established as their main priority. Driven by ambition, they are determined to fulfill their desires; without reluctance. 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Wednesday, January 1, 2020

Essay On Animal Protection

A Quick Guide to Writing an Essay on Animal Protection Essay on animal topic selection can be tricky as for the variety of the choices available. Its so easy to get stuck when picking up the most unusual variant to prepare a good essay and highlight the main up to date problems buttressed up by persuasive facts and examples. If this is your case and you are now searching for the tips on how to write an essay on animal topic, heres a small and quick guide to help you. WriteMyPapers.org offers you to have a glance on animal protection essay writing to find an inspiration for writing the work yourself or see the example of work and make sure you are in the right place to trust writing your essay to our writers. What to include into your essay on wild animal rights? Introduction is the part of your essay that grabs attention from the very first words which is why its recommended that you start with a cunning fact, quotation, proverb or phrase that needs to be proved or confuted. Alternatively, you can give two opposing opinions to argue on the both and come to a conclusion. Remember there are lots of laws concerning animal protection which is also one of the alternatives to start your essay. Add some statistics data and proofs to be more specific and convincing. Upon the approach you choose, you can start building your thoughts and reveal the main message. Including your own thoughts, beliefs and attitude into the main part of the essay will add uncommonness and make your work unique indeed. How to end up your essay? The conclusion should contain the results of your so-called research on the topic. Heres what you can have. The example of introduction to essay on animal rights! â€Å"Following Jeremy Benthams â€Å"The Principles of Morals and Legislation† that states â€Å"The question is not, Can they reason? nor, Can they talk? but Can they suffer?†, one may sink into a reverie of the depth of these words. The fact is sad but true, uncommon for the daily thoughts of humans but still remains palpitating. The soul is the same in all living creatures, deny it or not. Right about three thousands of animals are dying daily because of abuse made by humans, with 5 millions of them daily tortured in labs to help the progress of an industry.† Sample of the main part of essay on wild animal protection Working on the main part of your essay, stick to developing the main issues given in your introduction part. â€Å"As humans we have duties to protect the rights of animals, even the wild ones, take care of them as our best friends. We can find many of dogs and cats thrown in the streets and nobody cares passing them by. Wildlife animals and those on the red list are considered of a higher danger because they require more protection from hunters who are killing them just for fun.† The ways of developing your thoughts and examples on the topic are limitless. Deep sinking into the problem will open the various ideas on how to highlight it from different sides.