of Shikimic Acid‚ intermediate for the production of Oseltamivir‚ the Avian Flu drug Supervised by: Dr. Reza Yegani Dr. Mohammad Hossein Sarrafzadeh Mr. Habibollah Ramezanzade by: Kaveh Yazdifard Presented on: 1385/10/3 Contents Acknowledgement Introduction Shikimic Acid & its Natural Properties Derivatives of Shikimic Acid Avian Flu Sickness‚ Medications Oseltamivir and Shikimic Acid’s Role in Synthesis Production of Shikimic Acid Extracting Shikimic Acid from the Plant
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Essay March 28‚ 2014 ACID RAIN ENVIRONMENAL EFFECTS What is acid rain? It’s a rain or any other form of precipitation that is unusually acidic‚ meaning that it possesses elevated levels of hydrogen ions (low pH). It can have harmful effects on plants‚ aquatic animals and infrastructure. Acid rain is caused by emissions of sulfur dioxide and nitrogen oxide‚ which react with the water molecules in the atmosphere to produce acids. The most obvious environmental effect of acid rain has been the loss
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effects associated with teen substance abuse. The Real World of Teen Substance Abuse There is no shortage of statistical data showing that the United States has significant drug issues among its young people. Despite recent declines‚ 14.2 of the teenagers between the ages of 12 and 20 reported heavy binge drinking at some point during 2013‚ according to a study conducted by the Substance Abuse and Mental Health Services Administration. Additionally‚
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Understanding Risk-Neutral Valuation Stephen M Schaefer London Business School March‚ 2012 Outline • The no-arbitrage principle • Arrow-Debreu (A-D) securities and market completeness • Valuing options with one period to maturity via replication using underlying asset and borrowing / lending replication using A-D securities risk neutral probabilities • Valuing options with several periods to maturity Understanding Risk Neutral Valuation 2 No-arbitrage pricing Understanding Risk Neutral Valuation 3
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with the standard 0.050 M sulphuric acid provided‚ using phenol red indicator until two or three consistent results are obtained. d. Calculate the weight of acetylsalicylic acid in each tablet and compare your results with the manufacturer’s specification. Compare your results with those given in different brands of aspirin. Titration Results Titration trial 1 2 3 Final burette reading (cm3) Initial burette reading (cm3) Volume of acid used (cm3) Average volume
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Acid rain‚ or more accurately acid precipitation‚ is the term used for describing rainfall with a pH level lower than 5.6. This type of pollution is a matter of great debate currently due to the potential of its causing environmental damages all across the world. For the last decade or so acid rain has caused destruction to hundreds of lakes and streams in many parts of the world‚ including the US‚ Canada‚ and Europe. Acid rain forms due to the oxides of sulfite and nitrogen combining with the moisture
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and industrial applications. Citric Acid is one of the organic acids commonly used as a chelating agent. It is considered an excellent chelating agent that binds metals. It is used to remove lime scale from boilers and evaporators. It can be used to soften water‚ which makes it useful in soaps and laundry detergents. By chelating the metals in hard water‚ it lets these cleaners produce foam and work better without need for water softening devices. Citric acid is the active ingredient in some bathroom
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In Robert Whelchel’s Article‚ “Is Technology Neutral?”‚ he discusses how the engineering profession needs to address the issues surrounding technologies. He starts of by defining what it means for a technology to be morally neutral. A technology is not neutral in the sense of creating value; it can create good or bad for society. So Whelchel rephrases the question as‚ “is technology value-free?” In order to assign value to a technology‚ there must be some value system. However‚ giving technology
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------------------------------------------------- Hydrochloric acid From Wikipedia‚ the free encyclopedia (Redirected from Muriatic acid) Not to be confused with hydrogen chloride. Hydrochloric acid | | | | Other names[hide] * Muriatic acid[1] * Spirits of salt[2] | Identifiers | CAS number | 7647-01-0 | ChemSpider | 10633809 | UNII | QTT17582CB | EC number | 231-595-7 | ChEMBL | CHEMBL1231821 | ATC code | A09AB03‚B05XA13 | Properties | Appearance | Colourless
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By: Saina - 8R Substance Abuse - Heroin Substance abuse means abusing the power of various drugs‚ alcohol or chemicals to the point at which the user can’t stop. This can usually result in physical‚ mental and/or emotional harm to the users and others. Teenagers are more in the risk of the substance abuse as they don’t acknowledge the consequences of their actions; the reason is the biological and psychological changes during the adolescence‚ but also lots of the adults get addicted to the drugs
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