Steam Distillation – Clove Oil Abstract: In this experiment‚ a situ method steam distillation was performed and essential oils were isolated from cloves. Once the oils were obtained‚ extraction techniques were used to extract a crude‚ eugenol‚ and acetyleugenol product sample. These samples were submitted for GC analysis and the normalization area percents were calculated to confirm their purity; for the crude sample it was 93.95% eugenol and 6.05% acetyleugenol‚ for the eugenol sample it
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The steam engine is one of the very first inventions during the Industrial Revolution and one of the most important invention ever created. A steam engine was a machine that used heat‚ water‚ and coal to power it. The steam engine was used in many different things‚ from water pumps in mines to trains. Steam engines helped this world get to where we are today. The steam engine had a rough start‚ but when people realized it could be used for more then just pumping water‚ it began to be used in bigger
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MITRAL VALVE DISEASE MITRAL STENOSIS Mitral stenosis is almost always rheumatic in origin‚ although in the elderly it can be caused by heavy calcification of the mitral valve apparatus. There is also a rare form of congenital mitral stenosis. In rheumatic mitral stenosis‚ the mitral valve orifice is slowly diminished by progressive fibrosis‚ calcification of the valve leaflets‚ and fusion of the cusps and subvalvular apparatus. The flow of blood from left atrium to left ventricle
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According to a recent study‚ using a thermostatic mixer valve to reduce the maximum temperature of hot water dispensed from home water pipes should significantly reduce the risk of scalding especially for young children‚ the elderly‚ and people with disabilities. Each year in the United States about 112‚000 people are treated for scald burns in hospital emergency rooms; about 80% of tap water burns occur among young children‚ the elderly‚ and people with disabilities. The American Academy of Pediatrics
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Looking Back and Looking Ahead Education has been a major part of life. Thanks to education‚ I am able to continue my studies now at a college level and soon I will be able to achieve my professional goals. These goals could not be met without having the proper habits of mind. According to Framework for Success in Postsecondary Writing‚ habits of mind are “ways of approaching learning that are both intellectual and practical”. These habits include: curiosity‚ openness‚ engagement‚ creativity‚
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Tarakarama Rao Raghupati and Jay Shankar Prasad Introduction Organic farming is not a new concept to Indian farmers. Before the Green Revolution‚ during which the chemical fertilisers were introduced‚ Indian farmers used to cultivate crops using natural resources like Farm Yard Manure (FYM)‚ leaves of various plant species‚ animal wastes‚ etc. With the advent of Green Revolution‚ High Yielding Varieties (HYVs) came into existence. In order to utilise the potentiality of the HYVs‚ the use of
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Feminists Ahead of their Time: Veronica Franco and Leona Florentino I found several feminist themes in the works of both Franco and Florentino. The works of Veronica Franco were more laden with feminist themes than that of Florentino. Although both writers produced their work in times where the feminist movement had not yet been established‚ their works address and promote issues of women‚ which I will discuss further in this chapter. Franco and Florentino sighted feministic themes repeatedly throughout
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In “Credentialing Versus Educating”‚ the third chapter of Dark Ages Ahead‚ Jane Jacobs discusses a change in the intent and practice of higher education at universities and colleges. “Credentialing‚ not educating‚ has become the primary business of North American universities” (Jacobs 44). The institution of education has shifted its focus from passing on knowledge and teaching students to have critical faculties for the stability and growth of society‚ to simply certifying individuals in order to
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Everyone knows the age old expression‚ “if you want something done right‚ you will do it yourself”. This couldn’t be more true in the case of Joe Kurmaskie‚ in his essay Rough Road Ahead: Do Not Exceed Posted Speed Limit‚ he learns this lesson the hard way. Armed with all the necessary equipment and knowledge he needs he foolishly takes “travel advice from a collection of old timers”. Another valuable piece of advice for joe could have been “stick to what you know” but the old men seemed “so sure
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In his book The Road Ahead‚ Bill Gates relates to a non-technical audience the history‚ growth‚ and future of technology. He discusses how the trends‚ technologies‚ and issues of the Information Age are affecting society. Gates makes predictions and gives advice on how to adapt and succeed in the future of incredible change in computing and communicating. His book is written with two major concerns: the development and future of technology‚ and its influence on society. Bill Gates begins by
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