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Full-Text Articles in Physical Sciences and Mathematics

Project Synthesis Of N Acetyl L Histidine Ethyl Amide And Standard Operating Procedure For Fractional Collector, Maneesha Jakkampudi Oct 2012

Project Synthesis Of N Acetyl L Histidine Ethyl Amide And Standard Operating Procedure For Fractional Collector, Maneesha Jakkampudi

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Photo oxidation of proteins leads to the formation of cross links of the amino acids in the proteins and leads to induction of cataracts, photo aging of the skin and in the Photodynamic therapy of tumors.

Oxidation of proteins involves significant modification of particular amino acids residues with consequent photodynamic damage. Studies show that tryptophan, tyrosine and histidine side chains gives rise to semi stable peroxides on exposure to singlet oxygen these oxidized structures are studied with low temperature NMR. These peroxides or species derived from them have been postulated as key intermediates in subsequent reactions such as cross linking …


Quantitative Determination Of Acetylsalicyclic Acid And Acetaminophen By Q-Nmr (Quantitative Nuclear Magnetic Resonance) Technique, Gouthami Kanduri Oct 2012

Quantitative Determination Of Acetylsalicyclic Acid And Acetaminophen By Q-Nmr (Quantitative Nuclear Magnetic Resonance) Technique, Gouthami Kanduri

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The pharmaceutical industry mainly uses chromatographic techniques such as High Performance Liquid Chromatography (HPLC) and Gas Chromatography (GC), to determine the quantity of the active ingredient and other material in the drugs. A large effort goes into developing methods using chromatography techniques. The method development and running HPLC and GC are time consuming. Methods need to be updated as the chromatographic columns and the instruments wear out. On the other hand, Nuclear Magnetic Resonance (NMR) technique is mainly used for qualitative analysis to determine the identity of compounds. However, Proton-NMR technique does provide quantitative information of compounds but to develop …


Using Computers To Aid In Successful Trading And Investing, Spencer Davis Jul 2012

Using Computers To Aid In Successful Trading And Investing, Spencer Davis

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In today’s world of high frequency trading and volatile markets, it is next to impossible for the average investor to make good decisions about where to put their money and for how long. There is a multitude of “hype” from many different directions including, television, magazine ads, internet searches, and emails. These companies usually sell computer programs to take the guess work out of it and do the thinking for you. They show successful results and it seems very promising. Unfortunately, most of these programs tend to come up short on their promises over the long run by having dismal …


Interaction Between Humic Acid And Dna, Sree Divya Bikki Apr 2012

Interaction Between Humic Acid And Dna, Sree Divya Bikki

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Humic acid (HA) are widely dispersed, naturally occurring biopolymers most commonly found in soil, drinking water, and plants. Humic acid is soluble in alkali and insoluble in an acidic medium or water. In the present study the interaction of Humic acid with DNA is determined by the calculation of the binding constant of humic acid with CT-DNA and the quenching phenomenon of humic acid in the presence of DNA is also studied using Stern Volmer Relationship.