Synthesis of 3-Acetylcoumarin Introduction In thi lab we were asked to make coumarin. Coumarin is a fragrent organic chemical compound. It is a natural substance found in many plants. The name comes from the french term for tonka bean. The substance was first isolated as a natural product in 1820. Coumarin has been showed to be useful in biological activity‚ but they have been approved for few pharmacutical uses. It has been reported that coumarin activity includes HIV‚ tumors
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quantification (1) Diagnosing a situation‚ (2) Screening alternatives‚ (3) Discovering new ideas 2 • Researchers conduct exploratory research for 3 inter related purposes: EXPLORATORY RESEARCH CATEGORIES Secondary data analysis Case studies PILOT STUDIES Focus group interviews PROJECTIVE TECHNIQUES WORD ASSOCIATION TESTS Depth interviews SENTENCE COMPLETION METHODS 3 Experience surveys WORD ASSOCIATION Responses are analysed by calculating:
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Comparative Essay on the speeches of Mark Antony and Brutus Julius Caesar is one of Shakespeare’s greatest works. It is about a group of conspirators in Rome who kill their king‚ Julius Caesar. The play follows the life of Brutus (at the time) - a conspirator yet an honourable man. His rival throughout the novel is Mark Antony- Caesar’s good friend. The pair’s likeness and unlikeness becomes clear at Caesar’s funeral where both make a speech justifying what one another is doing. Brutus appeals
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CHAPTER I INTRODUCTION Peel waste are highly perishable and seasonal‚ is a problem to the processing industries and pollution monitoring agencies. There is always an increased attention in bringing useful products from waste materials and citrus wastes are no exceptions. Suitable methods have to be adopted to utilize them for the conversion into value-added products [Nand‚ (1998)]. Pectin exists in varying amounts in fruit cell walls and has important nutritional and technological properties
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NFPA 703 --```‚‚‚-`-`‚‚`‚‚`‚`‚‚`--- Standard for Fire Retardant Impregnated Wood and Fire Retardant Coatings for Building Materials 2000 Edition NFPA‚ 1 Batterymarch Park‚ PO Box 9101‚ Quincy‚ MA 02269-9101 An International Codes and Standards Organization NFPA License Agreement This document is copyrighted by the National Fire Protection Association (NFPA)‚ 1 Batterymarch Park‚ Quincy‚ MA 02269-9101 USA. All rights reserved. NFPA grants you a license as follows: The right to download an electronic
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Table 4: Water Quality vs. Fish Population Dissolved Oxygen (ppm) 0 2 4 6 8 10 12 14 16 18 Number of Fish Observed 0 1 3 10 12 13 15 10 12 13 Questions 1. What patterns do you observe based on the information in Table 4? 2. Develop a hypothesis relating to the amount of dissolved oxygen measured in the water sample and the number of fish observed in the body of water. 3. What would your experimental approach be to test this hypothesis? 4. What would be the independent and dependent
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Winning the Nobel Prize (2007) and Margaret Atwood’s Spotty-Handed Villainesses (1994) are both worthy speeches because they evoke a personal response in their intended audience and offer solutions to complex global issues. These issues are complex because they do not have a clear answer and hence‚ remains a controversial topic and reverberates across time. Therefore‚ the solutions offered by these speeches also resonates beyond the contextual audience and holds value for the modern responder. Lessing spoke
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Universiti Tun Hussein Onn Malaysia Pusat Pengajian Sains Semester 1 2008/2009 BSM 2913 TEST 1 DURATION : 60 minutes ANSWER ALL QUESTIONS. 1. Given the function f ( x‚ y ) = x 2 + 2 y 2 − 1 a. Find the domain and range of the function. (2 marks) b. Sketch the contour map of the function f ( x‚ y ) using three level curves‚ c = 1‚ 2‚ 3 . (4 marks) c. Use 3D-contour map to sketch roughly the surface of f ( x‚ y ) . (2 marks) 2 4 x2 − y 2 ‚ x2 + 2 y 2 f ( x‚ y ) along x-
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EYMP 3 Promote children’s welfare and well-being in the early years Understand he welfare requirements of the relevant early years framework 1.1 Explain the welfare requirements and guidance of the relevant early years frame work To ensure children’s health‚ safety and well-being‚ every home nation has sets of standards or welfare requirements which settings must meet. The welfare requirements are compulsory‚ and it is essential that you have read them as your setting has a legal duty to comply with
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Vara’s sense of autonomy. By focussing on her strengths and her past achievements to give her the confidence and motivation and by summarising to Vara and by acknowledging to her that she as achieved her set goal I would support Vara’s sense of autonomy. 3. Briefly describe how you would inform her about opportunities for further support. As Vara had said during the session that she and her husband Alec are considering the option of seeking a marriage counsellor I would provide her with a list of marriage
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