This I Believe I believe in caffeine. I believe in caffeine because it keeps me alert‚ not quite awake‚ but alert. After a full night of studying‚ cramming on procrastinated homework‚ or just refusing to go to sleep‚ caffeine keeps you alert enough to be aware of the happenings of your day. But why would a 17 year old girl believe in caffeine‚ a chemical usually depended upon by truck drivers and stressed out adults working a daily 9-5? This is because of a 17 year old girl’s awareness of the
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4050 SEPTEMBER 18‚ 2009 TIMOTHY A. LUEHRMAN JOEL L. HEILPRIN Mercury Athletic Footwear: Valuing the Opportunity In March 2007‚ John Liedtke‚ the head of business development for Active Gear‚ Inc.‚ a privately held footwear company‚ was contemplating an acquisition opportunity. West Coast Fashions‚ Inc. (WCF)‚ a large designer and marketer of men’s and women’s branded apparel had recently announced plans for a strategic reorganization. The plan called for a divestiture of certain non-core
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the extraction of caffeine from tea leaves to determine its % caffeine. The extraction process selectively dissolves one or more compounds in a mixture into an appropriate solvent. In this experiment‚ it was visible in the process wherein the components of the tea leaves were dissolved in two solvents‚ water and dichloromethane (DCM)‚ with DCM used for multiple extractions. The organic layer was evaporated and the determined % caffeine was 0.12%. Furthermore‚ the purified caffeine was subjected to
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1. Market segmentation is the selection of groups of people who will be most receptive to a product. The most frequent methods of segmenting include: Demographic variables such as: age‚ sex‚ race‚ income‚ occupation‚ education and household status. Psychographic variables such as: lifestyle‚ activities‚ personality and social class. Behavioural variables such as: product benefits and product use patterns. Geographic variables such as: climate‚ country or region and the size of the area in terms
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Experiment 11b: Isolation of Caffeine from a Tea Bag October 12‚2012 Purpose: The objective of this experiment is to extract caffeine from tea bags using the method of extraction. After the caffeine is extracted it is then compared to the nutritional facts amount per serving on the tea bags box. Supplies: Glassware: 1. 50.0 m L graduated cylinder 2. 150.0 mL beaker 3. 2-glass stirring rod 4. 6-test tubes 5. 2-glass pipettes 6. 2-50.0 mL Erlenmeyer flasks 7. glass funnel Hardware:
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CHAPTER 1 THE PROBLEM AND ITS BACKGROUND Personal computer game (also known as computer game or simply pc game) is a video game played in the personal computer‚ rather than on a video console or arcade machine. Computer games have evolved from the simple graphics and game play of early titles like Space War‚ to a wide range of more visually advanced titles. PC games are created by one or more game developers‚ often in conjunction with other specialists (such as game artists)
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games are common in our life‚ they have not only good effects‚ but also bad effects‚ especially to teenagers. Moreover‚ even though parents know that teenagers plat computer games too much they do not know that why teenagers are widely excited at computer games‚ and what the bad effects of computer games are. There are two main causes that teenagers play computer games too much. In addition‚ playing computer games too much has two main effects. The first reason that teenagers play computer games too
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meaningful use regulations‚ ICD-9 to ICD-10. Each component is an important aspect of information technology and its evolving trends. As we continue to witness the advancement of technology‚ it is impacting the delivery of healthcare through clinical performance‚ electronic health record but most of all it is an expansion of knowledge; the ultimate goal of information technology in healthcare organizations is to reduce cost‚ improve productivity but most importantly provide effective patient care. There
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Extraction of Caffeine from Tea Leaves Department of Biological Sciences‚ College of Science University of Santo Tomas España‚ Manila‚ 1028 ABSTRACT: Caffeine is a white crystalline xanthine alkaloid that acts as a stimulant drug. Caffeine is found in varying quantities in the seeds‚ leaves‚ and fruit of some plants. It is most commonly consumed by humans in infusions extracted from the seed of the coffee plant and the leaves of the tea bush‚ as well as from various foods and drinks containing
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Extraction of Caffeine from Lipton Yellow Label Teal Leaves Arlie Bamiano‚ Jealine Bernabe‚ Petrenne Caimbon*‚ Jhia Caso Department of Biology‚ University of Santo Tomas Abstract In order to extract pure caffeine from Lipton Yellow Label tea leaves‚ several extractions and phase transition techniques were employed to 6.5029 grams of sample. Initially‚ the tea leaves were boiled in water to extract tea from the leaves (Solid-Liquid Extraction). After extracting the tea‚ several steps of
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