Common Aspects of Acid Prehydrolysis and Steam Explosion for Pretreating Wood Hans E. Grethlein Michigan Biotechnology Institute‚ PO Box 27609‚ Lansing‚ Michigan 48909‚ USA & Alvin O. Converse Thayer School of Engineering‚ Dartmouth College‚ Hanover‚ New Hampshire 03755‚ USA Abstract The initial rate of hydrolysis using cellulase from Trichoderma reesei for various wood samples is directly proportional to the surface area available to the enzyme. Both dilute acid hydrolysis in a continuous
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ALCOHOL A GROWING PUBLIC HEALTH PROBLEM. Module Title: Evidence- based practice and the community. Assignment Title: Evidence-based learning presentation TCA1 Module Code: NS501 Module Leader: Sarah Ambrose Wilson Module Lecturer: David Rawcliffe Cohort: September 2013 Date: 20th April‚ 2015 Student ID Number: 21309385. Aims To discuss alcohol misuse as a public health problem; the effects on health and negative social effects to individuals‚ families‚ and society at large. To identify
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EXPERIMENT 2: Recrystallization and Melting Point Recrystallization (or Crystallization) is a technique used to purify solids. This procedure relies on the fact that solubility increases as temperature increases (you can dissolve more sugar in hot water than in cold water). As a hot‚ saturated solution cools‚ it becomes supersaturated and the solute precipitates (crystallizes) out. In a recrystallization procedure‚ an impure (crude) solid is dissolved in a hot solvent. As this solution is cooled
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Alcohol and its Effects Rachael Wade Ivy Tech Community College Alcohol and its Effects Alcohol can be a very harmful substance. Alcohol can be abused‚ and people can get addicted to it like any other drug. It can impair coordination and judgment as well as a lot of other things. Alcohol can also have long term effects on the organs in the body. It can affect people psychologically as well as behaviorally. Many deaths that occur each day are caused by alcohol. Consuming alcohol affects a
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Alcohol: Past‚ Present‚ and Future Karl Ballenger Mrs. Hines Communication Arts 200 period 7 February 20‚ 2007 The beginning of Alcohol While no one knows when alcohol was first used as a beverage (or even created) we do know that it has been used for over ten thousand years. Archeologists to this day are discovering old beer mug containers from the B.C period. Some other archeologist and a few scientists believe it was created in an experimental
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Marijuana and Alcohol: Effects on the Body It shouldn’t be much of a surprise that alcohol and marijuana comprise the two most commonly abused drugs by young adults in America. But while many would ask why young adults use these drugs‚ it’s more important to understand how these drugs affect the body. What exactly do these drugs do to the body and how does the body process them? Are the effects always negative? Does the amount consumed make a significant difference? First I will give a brief history
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Acid Rain Acid rain occurs when Sulphur Dioxide (SO2) is released into the atmosphere by electricity generation‚ motor vehicles‚ factories and by wildfires and volcanoes. Once released‚ the sulphur dioxide reacts with water to produce sulphuric acid. This has a pH of approximately 2-3 pH. This has a dramatic effect on water dwelling wildlife. Most water dwelling creatures can’t withstand water more acidic than pH 5. This causes the mass loss of life of animals such as trout‚ perch‚ frogs and mayflies
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Alcoholism addiction What is alcoholism? Alcoholism is when you abuse alcohol‚ you continue to drink even though you know your drinking is causing problems. If you continue to abuse alcohol‚ it can lead to alcohol dependence. Alcohol dependence is also called alcoholism. You are physically or mentally addicted to alcohol. You have a strong need‚ or craving‚ to drink. You feel like you must drink just to get by. For more than millions of people have been affected by an addict that destroyed their
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SHOULD ALCOHOL BE BANNED? We can scarcely turn on televisions or pick up newspapers these days without being confronted with yet another depressing news item about the alcohol law. Some people‚ whom I agree with‚ believe that alcohol should be banned for society welfare level. They also claim that alcohol triggers committing crime. On the other hand‚ others think that alcohol ban is to interfere in life style. To begin with‚ the supporters of this argument that alcohol results in
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Dangers of Alcohol There are many dangers of using Alcohol‚ but there are only about 3 that stand out the most to me. The 3 dangers that get my attention are liver problems‚ bad judgment‚ and addiction. Although these may not be the deadliest dangers of alcohol‚ they are the deadliest to me. First off‚ the job of the liver is to remove toxins from the body. Alcohol is a type of toxin that the liver has to try and remove. The liver can only process so much alcohol‚ and any extra alcohol that is left
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