Magnetic resonance imaging (MRI) or nuclear magnetic resonance imaging, is a diagnostic tool capable of showing detailed images of the human body. It is a more reliable technique when there is a need to look at body organs and soft tissue that can't be clearly observed with X-rays, CT scans or ultrasound. The most important feature about MRI is that it can help to clearly distinguish between healthy and unhealthy tissues in organs and body parts like the brain, spine, joints and other internal
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compound Subscript tells you how many atoms of an element. Symbol has no subscript unit only has 1 element. A unit of H2O contains 2 hydrogen atoms and 1 oxygen atom Atomic stability: The electric forces between oppositely charged electrons and protons hold atoms and molecules together, and thus are the forces that cause compounds to form. Atoms of noble gases are unusually stable Compounds of these atoms rarely for because they are almost always less stable than the original atoms Unique noble
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charges and very little mass. There are three types of neutrinos: electron, muon and tau. The idea that neutrinos exist was proposed by Wolfgang Pauli. He proposed that there were more than two particles involved in an explosion, that along with protons and electrons, that a third, the neutron, was also involved. He stated that energy and momentum did not seem to be conserved in radioactive decays. Pauli proposed that the reason for this absent energy might be that was carried away by a neutral particle
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1. The term Zodiac refers to C) a group of constellations lying near the ecliptic. ----------- 2. You have just won 100 million dollars on that hit TV survival show ``Astronomy Midterm No. 1''. How much money is this? A) \$10$^8$ ----------- 3. In current scientific opinion, Stonehenge is considered to have been D) an astronomical observatory. ----------- 4. You have just won $10^4$ dollars on that hit TV survival show ``Astronomy Midterm No. 1''. How much money is this in real
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Clostridium difficile, also known as "CDF/cdf", or "C. diff", is a species of Gram-positive bacteria of the genus Clostridium that causes severe diarrhea and other intestinal disease when competing bacteria in the gut flora have been wiped out by antibiotics. Clostridia are anaerobic, spore-forming rods. C. difficile is the most serious cause of antibiotic-associated diarrhea (AAD) and can lead to pseudomembranous colitis, a severe inflammation of the colon, often resulting from eradication
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Postulates of Dalton’s Atomic Theory The main points of Dalton’s atomic theory, an explanation of the structure of matter in terms of different combinations of very small particles, are given by the following postulates: 1. All matter is composed of indivisible atoms. An atom is an extremely small particle of matter that retains its identity during chemical reactions. 2. An element is a type of matter composed of only one kind of atom, each atom of a given kind having the same properties. Mass
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A Critique of Direct-to-Consumer Advertisements Gina Emmanuel Grand Canyon University, NUR 641E August 14, 2013 A Critique of Direct-to-Consumer Advertisements The purpose of this paper is to comprehensively and concisely critique an internet advertisement for the FDA approved prescription drug: dexlansoprazole (Dexilant) and for the non-FDA regulated herbal product Aloe Cure, two products advertised as options in the management of gastro esophageal reflux disease (GERD). Advertisement
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Peptic Ulcer Peptic ulcers are open sores that develop on the inside lining of your esophagus, stomach and the upper portion of your small intestine. The most common symptom of a peptic ulcer is abdominal pain. Peptic ulcers include: Gastric ulcers that occur on the inside of the stomach Esophageal ulcers that occur inside the hollow tube (esophagus) that carries food from your throat to your stomach Duodenal ulcers that occur on the inside of the upper portion of your small intestine
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Marissa De la Paz Chemistry 6BL Evan Landstrom T/R, 8am Exp. 15B: Multistep synthesis of Nylong-6,6 from Cyclohexene The purpose of this lab experiment is to synthesize the polymer, Nylon-6,6, from the readily available starting material, cyclohexene. This reaction is done in three steps. The first is an oxidation step, which will produce adipic acid, the second consists of forming adipoyl chloride, and the last step is when the polymer is formed. Step one of the experiment consisted of oxidizing
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Physics PHYSICS FORMULAE AND PRINCIPLES Fundamental quantities and SI units The standard units were set up by the international system of units, SI The fundamental quantities, there symbols and there SI units a listed below Quantity symbol SI unit & unit symbol Length l metre (m) Mass m
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