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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Types of Pancreas Surgery Whether you have cysts‚ lesions‚ or tumors related to your pancreas‚ the type of pancreatic surgery that you will need will depend on where they are located. After a thorough analyst of your individual situation‚ your Glendora General Surgeon will determine the method of operation‚ open or laparoscopic‚ and the type of surgery‚ Distal Pancreatectomy‚ Total Pancreatectomy‚ or Whipple‚ which will best fit your needs. The surgeon will inform you on what to expect before
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widely used psychoactive drug found in many drinks‚ such as coffee‚ tea and cola. Caffeine is naturally present in the leaves and seeds of a variety of plants. Consuming caffeine has significant physiological effects on your body--one being its direct effect on your heart rate. Features Once consumed‚ caffeine enters your blood from the stomach and small intestine and begins to stimulate your central nervous system. Caffeine stimulates receptors located in cells within your heart to increase your heart
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Extraction of caffeine from tea bags ABSTRACT Caffeine extraction from the commercial tea leaves (Lipton Yellow Label Tea) that was done is multiple extraction. 4 tea bags were used in the experiment; tea leaves were weighed having 8.5333 grams. The leaves were boiled in a beaker with 150ml of water; the aqueous tea extract was transferred in a seperatory funnel mixed with DCM (20ml)‚ done thrice. The DCM layer was washed with 20ml 6M NaOH in the seperatory funnel; the organic layer was dried
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Abstract: Caffeine‚ (C8 H10 N4 O2) a white‚ crystalline alkaloid known as a nervous system stimulant found commonly in tea leaves and coffee‚ can be extracted using the method of sublimation with the use of Methylene Chloride (CH2Cl2) and Sodium Hydroxide; both can repeatedly rinse the green (unroasted) coffee beans from the caffeine. Keywords: Caffeine‚ Methylene Chloride‚ Sodium Hydroxide‚ Anhydrous Sodium Sulfate I. Introduction Caffeine is an alkaloid of the methylxanthine family. Its chemical
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and caffeine has an effect on heart rate‚ using the freshwater crustacean‚ Daphnia magna‚ as the experimental subject. For humans‚ alcohol works as a depressant‚ slowing down the heart rate of the consumer; caffeine works as a stimulant‚ increasing the heart rate of the consumer. The heart depends on an internal pacemaker system to keep it pumping consistently and at the right speed. Alcohol disturbs this pacemaker system and causes the heart to beat irregularly. Studies show that caffeine consumption
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When it comes to higher education there’s always a picture painted of a “better life”. The difficult part about that is the cost to attend a four year or even a two year college. The article “The Truth About Higher Education And Student Loans” by Jason Furman discusses the problems students face when trying to pay for their education. The article has some very interesting facts that people should be aware of especially if trying to gain a higher education. College isn’t free obviously people know
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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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The Dark Truth I am the dark blue crayon because I am bright on the outside‚ but dark on the inside. I get straight to the point like the tip of a crayon. On the outside‚ I function just fine‚ but when you take a good look‚ you see I fall short of expectations. Like the crayon‚ I hide myself. As blue‚ I am thought of first‚ yet chosen last for being dark. Broken in half like the crayon‚ where no one sees‚ I ache to belong when I know I never will. Under great heat or pressure‚ I tend to lose my
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The Blunt Truth Should marijuana be legalized? The legalization of marijuana is currently one of the most controversial issues in the United States today. To answer this question it entails more than just and simple “yes” or “no”. There are a variety of reasons as to why someone would want to use this decriminalized plant‚ which is the result of the nationwide debate of legalization. Medical uses seem to be the most looked at area of this debate. Many doctors will support the use of marijuana
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