Parasitol Res DOI 10.1007/s00436-012-3021-8 ORIGINAL PAPER Larvicidal‚ pupicidal‚ repellent and adulticidal activity of Citrus sinensis orange peel extract against Anopheles stephensi‚ Aedes aegypti and Culex quinquefasciatus (Diptera: Culicidae) Kadarkarai Murugan & Palanisamy Mahesh Kumar & Kalimuthu Kovendan & Duraisamy Amerasan & Jayapal Subrmaniam & Jiang-Shiou Hwang Received: 26 May 2012 / Accepted: 19 June 2012 # Springer-Verlag 2012 Abstract Mosquitoes are the carriers
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ORGANIC CHEMISTRY LAB 2: Separation of Organic Liquid Mixtures Introduction: In this experiment‚ a mixture of two compounds‚ cyclohexane and toluene‚ was separated into fractions by the techniques of simple and fractional distillation. The individual fractions that were gathered from the distillation were analyzed using gas chromatography (GC) and used to compare the efficiencies of the two different distillation techniques. The ultimate goal of this experiment was to determine whether simple
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Organic Chemistry II Lab 9 Fermentation of a Carbohydrate: Ethanol from Sucrose * Introduction Ethanol is one of the oldest alcohols and also the least toxic one. Industrially‚ ethanol is made most economically by hydration of ethylene. However‚ ethanol that is intended for human consumption must‚ by law‚ be prepared by fermentation. By either method‚ ethanol‚ of course‚ has the same formula‚ structure‚ and properties. The fermentation takes place with the assistance of enzymes from yeast
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Lab Report 7: Analysis of Cereal Introduction: The objective of this lab was to consult for the FDA regarding a recently surfaced scandal involving false reporting of iron content in cereal as well as iron tablets. The makers of the cereal and the iron tablets‚ respectively‚ were allegedly reporting higher amounts of iron in their products than actually existed‚ as a way to save money but continue to provide products with “adequate” amounts of iron. The FDA needed consulting in order to analyze
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Silicon dioxide (SiO2) is one of the most common oxides on the surface of earth. Like most oxides‚ it adopts a polymeric structure. Оксидите се хемиски соединенија што содржат најмалку еден атом на кислород и еден атом од друг хемиски елемент во својата формула. An oxide /ˈɒksaɪd/ is a chemical compound that contains at least one oxygenatom and one other element[1] in its chemical formula. Metal oxides typically contain an anion of oxygen in the oxidation state of −2. Most of the Earth’s crustconsists
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Organic Chemistry I – CHEM 201-DL01 September 26‚ 2014 Organic Chemistry Experiment 4B Lab Report Extraction of Organic Compounds From Natural Sources: Extraction of Trimyristin From Nutmeg Introduction The purpose of this experiment is to illustrate how a solid natural product can be extracted from its natural source through the use of an organic solvent. Natural products are organic compounds that are synthesized by natural biological processes in plants‚ animals
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PROBLEM This study aims to extract antioxidants from orange peels to use as natural preservatives especially for mangoes. Specifically‚ this study attempted to answer the following question: 1. How could the extracted antioxidant help the mango preserve its freshness? 2. Can the orange peels really be use as a alternative preservative for the mango? RESEARCH HYPOTHESIS Ha: The extracted preservative from the orange peel has no effect on the mango. Ho: The
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4200W- Physiology of Exercise Lab #2: Metabolism and Energy Expenditure 1. The Respiratory exchange ratio is the ratio of the volume of carbon dioxide produced and oxygen consumed. The ratio indicates the energy that the subject is expending for indirect calorimetry‚ how efficient the subject ’s body is at utilizing the oxygen inhaled‚ as well as the main substrate being used for energy during varying intensities of exercise. During rest the volume of carbon dioxide was 0.73L/min‚ the volume of oxygen
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they crumple atop my highs‚ put on my gray shorts-pull ‘em down so that my jock strap is seen on my back-and slip into a T-shirt that says "In your face‚ I do it with grace." Ya see‚ I’m goin’ back ta Citrus -- ta Citrus -- ta Citrus. To many‚ Citrus is just an elementary school located at Citrus and 4th avenue‚ but to many others it’s the ultimate place to play roundball. The three full courts all have baskets of different heights: one at eight feet‚ one at eight and a half‚ and one at nine and
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Does Human-Produced Carbon Dioxide Contribute to Global Warming? There are always two sides to an issue. This is especially true in Science. Each side will gather facts and statistics to help their argument. They will also fuel the argument with their opinions. Some articles are more persuasive in their reasoning then others. This persuasion can ultimately change a person’s opinion of the issue. The question to be answered is does human-produced carbon dioxide contribute significantly to
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