Download or read book Biological and Environmental Chemistry of DMSP and Related Sulfonium Compounds written by M.D. Keller and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: ''An essential book for people working in the area of sulfur compounds in the environment and should be in all institutional libraries....Well indexed, well presented.'' --- SGM Quarterly, November 1997 ''Extremely useful and well-produced symposium volume that should be of interest to many environmental scientists, microbial and plant physiologists, and aquatic ecologists.'' The Quarterly Review of Biology, June 1998

Download or read book Handbook of Arsenic Toxicology written by Swaran Jeet Singh Flora and published by Academic Press. This book was released on 2014-12-26 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt: Throughout history, arsenic has been used as an effective and lethal poison. Today, arsenic continues to present a real threat to human health all over the world, as it contaminates groundwater and food supplies. Handbook of Arsenic Toxicology presents the latest findings on arsenic, its chemistry, its sources and its acute and chronic effects on the environment and human health. The book takes readings systematically through the target organs, before detailing current preventative and counter measures. This reference enables readers to effectively assess the risks related to arsenic, and provide a comprehensive look at arsenic exposure, toxicity and toxicity prevention. - Brings together current findings on the effects of arsenic on the environment and human health - Includes state-of-the-art techniques in arsenic toxicokinetics, speciation and molecular mechanisms - Provides all the information needed for effective risk assessment, prevention and countermeasure

Download or read book Biological Interactions Of Sulfur Compounds written by Stephen C. Mitchell and published by CRC Press. This book was released on 2003-09-02 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text focuses on the biological interactions of sulphur compounds which arise specifically from the presence of the sulphur atom within the molecule. The book opens with introductory chapters on the chemistry and biology of sulphur, before tackling the field by introducing compounds which share a common chemical combination. In general, following a description of the uses and impact upon the biological field, specific chemical group characteristics are discussed together with the biological activity and structure-activity relationships where known. The toxicity of such compounds, their consequences in biochemical and clinical terms, and their mechanisms of biological interaction are then addressed.

Download or read book The Metabolism of Sulfur and Phosphorus Containing Compounds Der Stoffwechsel der Schwefel und Phosphorhaltigen Verbindungen written by and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: it became evident that the nucleoside, riboflavin, does not itself represent the original active group of the flavoprotein; it must be considered a breakdown CH a I N NH. N N H~ C "/\/ ""-C- O H3~( V " C=O 3 II I 1 - 3 H ~ " ff . . . . . . . . . . . / NH H3CJJ"N)"C/~m N?' C II II o o lumichrome lumiflavin product of a naturally occurring flavin nucleotide. Riboflavin-5'-phosphate (FMN, for flavin mononucleotide; see formula) was indicated by THEORELL as the original active group. In 1938, WARBURG and CHRISTIAN (1938 [7]-[10]) / OH ,CH CHOH- CHOH- CHOH-CH -P" 0 2- 20 N ,N OR H~A/ V " C-O 3 II I 1 - 3 H ~/"W,7'''C/NH II o Riboflavin-5'-phosphoric acid could bring excellent evidence for the idea that the co-enzyme of another flavo protein, n. amino acid oxidase, isflavin-adenine-dinucleotide or FAD (see formula). This was supported by ABRAHAM (1939), who identified both FMN and adenosine 5'-phosphate as hydrolysis products of FAD. The discovery of the coenzyme role of FAD has induced WARBURGand coworkers to engage in some speculation concerning the possibility that FMN is itself an artifact, produced through a breakdown of FAD. This aspect will be discussed later, in connection with recent work done on OYE in THEORELL'S laboratory. o NH 2 N CH3 .

Download or read book Organic Chemistry of Sulfur written by S. Oae and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 714 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years organic sulfur chemistry has been growing at an even faster pace than the very rapid development in other fields of chemistry. This phenomenal growth is undoubtedly a reflection of industrial and public demands: not only was sulfur recently in overall surplus for the first time in the history of the chemical industry but it has now become a prin cipal environmental hazard in the form of sulfur dioxide, sulfuric acid and hydrogen sulfide. Another reason, discernible in the last fifteen years, has been the desire, on the part of individual chemists and all types of research managers, to move away from the established chemistry of carbon into the less well understood and sometimes virgin chemistries of the other elements which form covalent bonds. As a result of this movement the last decade has seen the development of sulfur chemistry into a well-organized and now much better understood branch of organic chemistry. Enough of the detail has become clear to see mechanistic interrelationships between previously unconnected reactions and with this clarification the whole subject has in tum become systema tized and subdivided. The divalent sulfur chemistry of thiols, monosulfides, disulfides and polysulfides is a large area in itself, much of it devoted to oxidation-reduction and the breakage and formation of sulfur-sulfur bonds, although interesting discoveries are now being made about the reac tivity of certain sulfur-carbon bonds. Of course, this area has its own mas sive biochemical branch involving enzymes and proteins.

Download or read book Journal of the American Chemical Society written by American Chemical Society and published by . This book was released on 1926 with total page 1848 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the Society are included in v. 1-59, 1879-1937.

Download or read book Organic Chemistry Volume One written by Frank C. Whitmore and published by Courier Dover Publications. This book was released on 2011-12-14 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt: A rich source of chemical facts, theories, and processes, this two-volume series treats the entire subject of organic chemistry. It has served for decades as a reference for chemists in industry and education as well as a classroom text for students with a year or more of experience in organic chemistry. Volume One provides thorough coverage of aliphatic compounds, devoting 500 pages to the physical properties and various methods of synthetic preparation of hydrocarbons, halides, alcohols, ethers, carbohydrates, proteins, ketones, amines, monobasic acids, and many other related compounds. The second part of this volume discusses alicyclic compounds, with reactions, isomers, and processes given for terpenes, cyclopropane derivatives, carotenoids, and the cholane series. Methods of synthetic preparation receive a critical analysis, and many biochemical compounds are described.

Download or read book Advances in Enzymology and Related Areas of Molecular Biology written by Alton Meister and published by John Wiley & Sons. This book was released on 2009-09-10 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Enzymology and Related Areas of Molecular Biology is a seminal series in the field of biochemistry, offering researchers access to authoritative reviews of the latest discoveries in all areas of enzymology and molecular biology. These landmark volumes date back to 1941, providing an unrivaled view of the historical development of enzymology. The series offers researchers the latest understanding of enzymes, their mechanisms, reactions and evolution, roles in complex biological process, and their application in both the laboratory and industry. Each volume in the series features contributions by leading pioneers and investigators in the field from around the world. All articles are carefully edited to ensure thoroughness, quality, and readability. With its wide range of topics and long historical pedigree, Advances in Enzymology and Related Areas of Molecular Biology can be used not only by students and researchers in molecular biology, biochemistry, and enzymology, but also by any scientist interested in the discovery of an enzyme, its properties, and its applications.

Download or read book Fortschritte der Chemie Organischer Naturstoffe Progress in the Chemistry of Organic Natural Products Progr s dans la Chimie des Substances Organiques Naturelles written by and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sulfonium compounds have been known to the organic chemist for almost 90 years. During most of this period they remained curiosities, well suited for didactic purposes to illustrate certain similarities to ether adducts and to organic ammonium compounds. Their exploration remained largely in the academic realm, because no unusual practical applications were found in spite of a steady increase in the attention paid to them. An event that occasionally puts a class of compounds into the center of interest is the recognition of its occurrence in nature and of special biological significance. The first natural sulfonium compound was discovered less than 20 years ago, somewhat by chance rather than as the climax of some coveted biochemical problem. Gradually, however, the unique role of sulfonium compounds, especially of S-adenosyl methionine, in enzymatic group transfer reactions such as trans methylation was recognized, and the recent upsurge of interest has been exceptional. The present review is directed toward an interpretation of the properties and functions of biological sulfonium compounds with frequent reference to their structural chemistry. The data presented here may suggest novel or improved analytical techniques and new interpretations of the mechanism of group transfer. Furthermore, a stimulus may be derived for the design of sulfonium compound analogues. The availability of competitive analogues of biochemical key compounds has aided in the understanding of the function of virtually all metabolic intermediates, prosthetic groups of enzymes, vitamins, amino acids, and other compounds. The pattern will be similar in sulfonium biochemistry.

Download or read book Permuted Medical Subject Headings written by National Library of Medicine (U.S.) and published by . This book was released on 1991 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Comparative Biochemistry V1 written by Marcel Florkin and published by Elsevier. This book was released on 2012-12-02 with total page 617 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comparative Biochemistry: A Comprehensive Treatise, Volume I: Sources of Free Energy focuses on the desire to provide a sound, critical, and provocative summary of knowledge in comparative biochemistry, including thermodynamics, biological systems, oxidation, visual systems, and aerobic and anaerobic reactions of inorganic substances. The selection first offers information on the introduction to comparative biochemistry and thermodynamics of living systems. Discussions focus on comparative point of views in biology and biochemistry, classical thermodynamics, reaction rates in chemical and biological systems, and thermodynamics of open systems. The text then ponders on comparative mechanisms for fatty acid oxidation; phosphoric acid anhydrides and other energy-rich compounds; and onium compounds and their biological significance. The publication examines phototropism and phototaxis and distribution and evolution of visual systems. Topics include phototropism in plants, analysis of phototropic reaction, nature of photoreceptors, role of auxin in phototropism of plants, visual systems of vertebrates, and habitat relations. The book also tackles aerobic and anaerobic reactions of inorganic substances and comparative biochemistry of glycolysis. The selection is a dependable source of data for readers interested in the sources of free energy.

Download or read book Medical Subject Headings written by National Library of Medicine (U.S.). Medical Subject Headings Section and published by . This book was released on 1989 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Hexaphenylethane Alkyl Sulfide Addition Compounds written by Victor Rogers (Clyde) and published by . This book was released on 1928 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report of Investigations written by and published by . This book was released on 1964 with total page 874 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Metallurgical Studies of Rhodonite Ores Silverton District Colorado In Three Parts written by Dale Z. Hobbs and published by . This book was released on 1964 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: Studies were made to determine the effect of the shape of a pneumatic-rock-drill exhaust muffler on its efficiency, and the origin and reduction of exit noise from the mufflers. The report describes the investigation of rock-drill noise abatement.

Download or read book Annual Report written by Argonne National Laboratory. Division of Biological and Medical Research and published by . This book was released on 1964 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Preparation of Thick Coatings of Tungsten written by Frank X. McCawley and published by . This book was released on 1964 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: