W. (1987)‚ The spectral distribution of radiation in two neotropical rainforests. Biotropica‚ 19‚ 161-166 Melis‚ A.‚ Spangfort‚ M.‚ Andersson‚ B. (1987)‚ Light-absorption and electron-transport balance between photosystems II and photosystem I in spinach chloroplasts. Photochemsitry and Photobiology‚ 45‚ 129-136 Oren-Shamir‚ M.‚ Gussakovsky‚ E.E.‚ Shpiegel‚ E.‚ Nissim-Levi‚ A.‚ Ratner‚ K.‚ Ovadia‚ R.‚ Giller‚ Y.E.‚ Shahak‚ Y. (2001)‚ Coloured shade nets can improve the yield and quality of green decorative
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PATHOPHYSIOLOGY Age- related macular degeneration (AMD)‚ a chronic‚ progressive disorder of the retina‚ is the most common cause of blindness in individuals over the age of 60. The macula is the part of the retina which provides high resolution color vision (Redmond &While 2008). As the macula degenerates‚ individuals lose their central vision and color vision. There are two types of macular degeneration: wet‚ or choroidal neovascularization and dry‚ or nonneovascular . Dry AMD is the more
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SYNOPSIS: *INTRODUCTION *FOOD SOURCES *ORAC IN FOODS *VITAMINS *CAROTENOID TERPENOIDS *FLAVONOIDS *PHENOLIC ACIDS AND THEIR ESTER *OTHER NONFLAVONOID PHENOLICS *POTENTIAL ORGANIC ANTIOXIDANT *ANTIOXIDANT IN FRUITS *CONCLUSION ANTI-OXIDANT INTRODUCTION: *An antioxidant is a molecule that inhibits the oxidation of other molecules. * Oxidation is a chemical reaction that transfers electrons or hydrogen from a substance to an oxidizing agent. Oxidation reactions can produce
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A balanced diet is one that provides a good intake of energy and nutrients for maintenance of the body and for the good health. A diet can easily support normal body functioning‚ yet may not be a balanced diet. An ideal human diet contains fat‚ protein‚ carbohydrates‚ vitamins‚ minerals‚ water and fibre all in correct proportions. These proportions vary for each individual because everyone has different type of metabolic style and levels of activity. Malnutrition results from an unbalanced diet
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------------------------------------------------- Impacts of Applications of Chemistry on Society and the Environment ------------------------------------------------- Open Ended Investigation Madeline De-Sanctis INTRODUCTION From the earliest times‚ Chemistry has played a pivotal role in the advancement and enrichment of civilization‚ although sometimes it has also caused harmful and occasional long-reaching catastrophic effects on the environment. The importance of this sphere of science can
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Beach Channel High School Dr. David Morris‚ Principal The Living Environment Laboratory Study Guide The Living Regents Examination is at 9:00 a.m. on Friday January 26‚ 2007 Lab Activity 1 - Relationships and Biodiversity In this lab‚ students are introduced to classification and the importance of biodiversity. Organisms are according to similar characteristics. Some of these characteristics are physical (structural) and others are Biodiversity is the amount of the different organisms
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Monosaccharide also called SIMPLE SUGAR‚ any of the basic compounds that serve as the building blocks of carbohydrates. Monosaccharides are polyhydroxy aldehydes or ketones; that is‚ they are molecules with more than one hydroxyl group (-OH)‚ and a carbonyl group (C=O) either at the terminal carbon atom (aldose) or at the second carbon atom (ketose). The carbonyl group combines in aqueous solution with one hydroxyl group to form a cyclic compound (hemi-acetal or hemi-ketal). Monosaccharides are
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BENZOIC ACID & BENZOATES (210 –218) • Retards growth of bacteria and yeasts • Occurs naturally in many foods – a similar distribution to salicylate (but at a lower dose than as an additive) • Common food sources: Soft drink‚ cordial‚ fruit juice and cider Liquid essences and syrups Iceblocks‚ jelly‚ low joule jam‚ dips‚ pickles‚ olives Fish marinades and preserves • PABA (para-amino-benzoic-acid)
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COLUMN AND THIN LAYER CHROMATOGRAPHY Mark Paul P. Pastrana‚ Mariah Ericka M. Patawaran‚ Princess Juneire M. Peligro‚ Francisco Q. Pua III‚ Rose Anne L. Quyo and Janille P. Ragpa Group 8 2B Medical Technology Organic Chemistry Laboratory ABSTRACT The main objectives were to separate the colored components of malunggay leaves by means of column chromatography‚ as well as to determine the purity of the components using thin layer chromatography (TLC) and measure the Rf values of the colored
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PAPER AND THIN-LAYER CHROMATOGRAPHY Lab 47 Michael Stravino‚ CHM 2211L‚ June 3‚ 2012 Abstract Thin-Layer Chromatography and Paper Chromatography can be used to identify identical compounds‚ unknown compounds‚ the number of components in a mixture‚ as well as other important uses not explored in this laboratory. This experiment explores these techniques to identify an unknown amino acid by TLC and analyze food colors using paper chromatography. By using 2.0 mL of dimethoxyethane and 18 mL of
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