Designation: C 494/C 494M – 99ae1 Standard Specification for Chemical Admixtures for Concrete1 This standard is issued under the fixed designation C 494/C 494M; the number immediately following the designation indicates the year of original adoption or‚ in the case of revision‚ the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon (e) indicates an editorial change since the last revision or reapproval. This standard has been approved
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Bovine Growth Hormones: Should We Use Them? Michelle Szalasny Dr. Juan Bouzat Sarah Wofford Biology 2040H Fall 2013 Introduction Recombinant Bovine Growth Hormone‚ also referred to as Bovine Somatotropin (rBST)‚ is a genetically engineered growth hormone most commonly manufactured by Monsanto. Monsanto sells this drug under the name of “Posilac” to dairy farmers who choose to use the growth hormone. Although most of these bovine growth hormones
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and car surfaces‚ even after the smoke has diffused into the air (Bell‚ 2014). Mills questions the structure of society and asks how they are related (Mills‚ 2010). How third hand smoke relates to the society is that when the public breathes in the residue‚ they do not realise the danger of it. Even after the act of smoking has ended‚ there is still residual nicotine from tobacco smoke absorbed into indoor surfaces that reacts with the ambient nitrous acid to form carcinogenic tobacco- specific nitrosamines
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The Anthelmintic Property of Methanolic and Ethanolic extract of the Kulitis leaves (Amaranthus viridis) Chapter 1 Introduction The World Health Organization estimates that a staggering two billion people harbor parasitic worm infections. Parasitic worm also infect livestock and crops‚ affecting food production with a resultant economic impact. Despite this pevelance of parasitic infections‚ the research o the Anthelmintic drug is sparse. According to the WHO‚ only a
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side on. 3. Then fill about 100ml of each solution‚ suspension and colloidal mixture through a filter paper that sits in a filter funnel‚ observe whether any residue is in the filter paper. 4. Leave the remaining mixture undisturbed in the beaker and observe to see if any particles have settled out. Results: Mixture Appearance from side Residue on filter paper Settling on stand Solution Clear No No Colloid Cloudy No No Suspension Murky Yes Yes Discussion: A physical test the can tell the difference
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ABSTRACT: the purpose of the experiment was to find out how double displacement happened. When the chemicals and metals were mixed the product was white and the test tube turned very hot. INTRODUCTION: the purpose of this experiment was to identify double displacement and why is happened. Based on background information the chemicals when combined will fizz and turn very hot. Also‚ the chemicals used in this experiment are potentially harmful‚ so make sure to use goggles and tonsils to hold the test
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Many advancements and improvements have been made over the last 200 years‚ in the farming realm‚ in order to create better crop yields and‚ more importantly‚ make farming a whole lot easier for the typical farmer (typical meaning a 750-1500 acre farm). Technology has come a long way in the farming industry which makes the farm and the equipment used on the farm nothing like what it started out as‚ the seed is also very different than originally used. The farmers and the crops they produce are an
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to the flask and reflux the brown mixture for 30 minutes. 3. Remove the heat. Allow the flask to cool for a short time. 4. Filter the warm solution through a fluted filter paper into a 250 mL round bottom flask. Rinse the solid residue on the filter paper with 5 mL of
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To avoid any contamination the team must make sure none of the evidence gets contaminated. To ensure this‚ all members of the team must use clean protective gear and equipment for each scene. Control samples are always needed in order to include or exclude evidence being tested. Each piece of evidence should be packaged and stored ready for transport and each piece of evidence should be separately packaged. These precautions are very important to have a successful crime scene investigation (A Guide
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"Nate!" Rachel attempts to free herself from the guard’s grasp. However the more she pulls the tighter his grip gets. "Let me go!" she says angrily‚ slapping at the guard’s hand on her arm. "Aww‚ so angelic. Wanting to save your lil’ brother. The guard says mockingly. "Pathetic." "Why did you even take him? He’s only fourteen!" Rachel asks. She’s still struggling against the guard. "We must make sure the cure works for everyone." The guard is at least five times stronger
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