PERFLUORINATED COMPOUNDS: PERSISTENT‚ PESKY POLLUTANTS PRESENCE IN ARCTIC ENVIRONMENT AND WILDLIFE‚ LEADING TO PRESENCE IN HUMAN BLOOD SERUM J. Horton CHEM 422- Environmental Chemistry 4th of May‚ 2012 1 I N TR O D U CTI O N Perflurorinated compounds (PFCs) are heterogeneous organic compounds that have a partially or fully fluorinated alkyl chain‚ which can range from four to fourteen carbons and can have other functional organic groups attached. PFCs are mostly the products of industrial
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Biuret Test Biuret Test • Biuret Test is a chemical test used to show/detect the presence of peptide bonds‚ which are the basis for the formation of proteins. Explanation In the presence of peptides‚ copper (II) ion forms a violet-colored coordination complexes in an alkaline solution. This test can be used to asses the concentration of protein because peptide bonds occur with the same frequency per amino acid in the peptide. According to Beer-Lambert Law‚ the intensity of the color and hence
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The Political Economy of Corruption: A Philippine Illustrationa James Roumasset b Department of Economics‚ University of Hawai’i at M noa & University of Hawai’i Economic Research Organization Working Paper No. 08-05 October 27‚ 2008 Abstract This essay explores the nature‚ causes‚ and consequences of corruption as it pertains to entire regimes. Grand corruption is modeled as a type of unproductive rent-seeking at the highest levels of government. The economic costs of corruption are assumed
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Compare the evidence of a Nordic presence in the Americas before the arrival of Columbus with the evidence of a West African presence during that period. It has been said by historians that the Nordics and the West Africans were in the Americas before Columbus arrived in 1492. Though evidence‚ such as oral sagas‚ tracing routes which it was said they took‚ artifacts‚ skeletal remains‚ among others‚ have been found to prove that they could have been present; there are still debates as to whether
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1- The presence of others can impact people’s behavior in many ways. For example‚ social facilitation is a process where the presence of others causes you to perform better‚ but only on tasks that are easy for you; during tasks that are difficult‚ the presence of others causes you to perform worse. Another way people’s behavior is impacted by the presence of others is social loafing‚ when people are put into a group to complete a task‚ each individual will perform less than they would if they were
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Fuqra had a strong presence near Bellevue‚ Washington at the time of the 1994 murders and is believed to have previously committed acts of terrorism against Indo-Pakistani targets in Seattle and Tacoma. Fuqra had a significant presence in Seattle‚ Bellingham and Onalaska until the mid-1990s. The presence in Seattle was established in early 1985‚ as the Colorado Fuqra was found to possess pictures of Fuqra members in the area. A FBI report from 1988 said that Fuqra had “nomadic” groups in Seattle
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author of such historic piece as the Mayas‚ and many other aspects of Pre and Post Columbian times‚ offered much evidences to the cause. Written and Visual The findings and diaries of Columbus- Columbus was actually the first person to discover the presence of Africans in the Americas. Columbus himself reported that the Native Amerindians of Hispaniola had told him that‚ “There had came to Hispaniola people who have the tops of their spears made of metal‚ which they call guanine‚ of which he had sent
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The Presence of Horror and Fear in ‘The Monkey’s Paw’ Story This essay is an analysis of ‘The Monkey’s Paw’‚ a horror short story by William Wymark Jacobs. This story is about a talisman that shapes like monkey’s paw which has magical powers. It grants three wishes to its owner. It’s given to one family‚ husband‚ wife‚ and their son. They wish for some money‚ and that wish also become true‚ they get the money‚ the exact amount they wished for. But actually that money was the compensation for the
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Dimmesdale’s physician since he has knowledge about medicine. Suspecting Dimmesdale as the father of Pearl‚ Chillingworth‚ with a maleficent personality‚ exploited Dimmesdale and tortured him psychologically. Critics argue about who committed the greater sin since Hester and Dimmesdale committed adultery while Chillingworth took revenge and tortured Dimmesdale.
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Is The Increased Presence of Public Surveillance Technology Justified We hear it again and again. Video surveillance cameras can pick up and see what humans can’t. Over the last couple of years‚ surveillance technology has flourished‚ however it brings up a very controversial topic of whether it is cost worthy or not; some argue that video surveillance isn’t effective and that it is just wrong to spy on people while others contend that it provides an extra eye and is effective at providing security
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