Penicillin Essay (25marks) Considered to be the first of the antibiotic medicines‚ and the first important commercial product to be produced by an aerobic‚ submerged fermentation‚ penicillin (as originally coined) strictly refers to the antimicrobial agent produced naturally by the microbe Penicilium notatum; a form of filamentous fungus. Originally discovered by Ernest Duschesne in 1896‚ it was later ‘rediscovered’ by Alexander Flemming in 1928‚ who was then credited for the discovery – though
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Thinking about Diversity and Inclusion Jennifer Smith Garman Soc/315 January 31‚ 2011 Dana Batzka Abstract This paper addresses the many dimensions of cultural diversity. How these dimensions affect which cultural‚ ethnic‚ or other groups people identify with‚ and how these groups affect our social circles. The difference between diversity and inclusion is identified as well as the importance of diversity training within the workplace and how workplace culture is affected by diversity.
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bacteria have a simpler cell wall‚ with a large amount of peptidoglycan. Peptidoglycan is a polymer composed of modified sugars cross-linked by short polypeptides. In effect‚ the cell wall traps the crystal violet in the cytoplasm‚ concealing the red dye safranin in gram staining experiment. Certain gram positive species have virulent strains that are resistant to one or more drugs. Gram negative bacteria on the other hand are composed of lipopolysaccharides (LPS)‚ porin channels‚ and murein lipoprotein
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Mycobacterium). These organisms contain mycolic acid in their cell walls rather than peptidoglycan. The use of Acid alcohol produces the stain since it does not decolorize an acid-fast organism. The acidic dye‚ Carbol Fuchsin‚ is the primary stain to use in order to retrain the acid-fast organism’s cell wall. Next‚ the basic counterstain‚ Methylene blue‚ is added on to stain the rest of the organism with the expectation of the acid-fast bacterium. This will
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Morinda citrifolia / Noni Morinda citrifolia is a tree in the coffee family‚ Rubiaceae. Its native range extends through Southeast Asia and Australasia‚ and the species is now cultivated throughout the tropics and widely naturalised. It is commonly known as great morinda‚ Indian mulberry‚ nunaakai (Tamil Nadu‚ India)‚ dog dumpling (Barbados)‚ mengkudu (Indonesia and Malaysia)‚ apatot (Philippines)‚ kumudu (Bali)‚ pace (Java)‚ beach mulberry‚ cheese fruit or noni (from Hawaiian). •
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Problems and Causes of Crisis Financial Collapse During economic recession started began after 2005 gave impact on Starbucks. These problem continued to effect the performance of the company until December 2010. The effect of the financial crisis Starbucks global operating income for quarter had fall 26 per cent‚ to $178 million. Earnings were down per cent‚ to 109 million‚ as Starbucks operating margin dropped from 10.7 per cent to 7.1 per cent of net revenue. Limited Coffee Bean Supplier Starbucks
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Candy Chromatography Background info: Paper chromatography is a logical technique used to separate works of a solution. Three examples of how we apply this technique to real-life would be: contaneminants in water‚ separation of plant pigmentation‚ and analysis of narcotics. Source: http://www.discoveriesinmedicine.com/Bar-Cod/Chromatography.html#b Purpose: To find out why candies are different colors. * Materials: Candy with a colored coating‚ like Skittles® or M&Ms® (4 different
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properly observe the titrations move them between a dark background and a white background. a. NaHCO3 & HCI- bubbles form b. HCI & BTB c. NH3 (Ammonia) & 1 drop of BTB- record expected color & actual result. d. HCI & blue dye e. Blue dye & NaOCI. Record findings‚ then add 1 drop of HCI f. NaOCI & KI. Observe‚ then add 1 drop of starch. See starch turns black g.KI & Pb(NO3)2. Describe precipitate formed. h.NaOH & phenolphthalein. Observations of Chemical Changes
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respectively. Keywords: Catalysts‚ Photocatalysts‚ Mixed oxides‚ Oxides‚ Sol-gel method‚ Photodegradation‚ Nanocomposites‚ Titania‚ Silica IPC Code: Int. Cl.9 B01J2/08; B01J21/06 Synthetic dyes are toxic refractory chemicals which can generate intense color and are hazardous to the environment. Most of dyes are resistant to aerobic biodegradation1. Heterogeneous photocatalytic detoxification
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ANTACIDS- Classification and Mechanism of Action INTRODUCTION Antacids are defined as a substance‚ generally a base‚ which counteracts stomach acidity. The name antacid means anti-acid (against acid). Antacids are the primary treatment for ailments such as gastric reflux‚ gastritis‚ upset stomach and heartburn. Hydrochloric acid is secreted by the stomach to kill harmful organisms‚ aid digestion and activate digestive enzymes. Excess secretion of acid into stomach or impaired resistance by
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