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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fills the space between the cover slip and the slide. This action allows the light from the microscope to pass through the slide and the sample for better visualization of the organisms. A direct stain occurs when a charged color portion of a basic dye like methylene blue combines with the negatively charged portion of and organism allowing the bacterium to become directly stained. In direct staining‚ the organisms must be fixed by a process such as heat. Fixing the slide prevents the organism form
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For this is the same sub part division that published “Ipril Dye”‚ we decided to go for a more similar approach‚ making “The Hope Song” as a continuation of “Ipril Dye”. When the Proles hear familiar phrases such as April day‚ and that they have stolen my heart away‚ we turn our song into a more relevant and relatable song in the near future. By testing various chord
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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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Write your name here Surname Other names Centre Number Candidate Number Edexcel IGCSE Chemistry Unit: 4CH0 Science (Double Award) 4SC0 Paper: 1C Wednesday 25 May 2011 – Morning Time: 2 hours Paper Reference 4CH0/1C 4SC0/1C You must have: Ruler Candidates may use a calculator. Total Marks Instructions black ink or • Usein the boxesball-point pen. page with your name‚ Fill at the top of this • centre number and candidate number. all • Answer
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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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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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Clark‚ D. R. (2004). Instructional System Design Concept Map. Retrieved from http://nwlink.com~donclark/leader/leadcon.html Clark‚ D. R. (2004). Instructional System Design Concept Map. Retrieved from http://nwlink.com~donclark/leader/leadstl.html Dye‚ C. F. (2010). Appendix A Professional and Personal Values Evaluation Form in Leadership in Healthcare Essential Values and Skills Leadership Now: Building a Community of Leaders .Retrieved from http://leadershpnow.com Northouse‚ P. G. (2007). Leadership:
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