Regulatory compliance officers, public health officials and scientists will find that 'The Biological and Environmental Chemistry of Chromium' offers a comprehensive treatment of the benefits and hazards associated with chromium and its compounds. Drawn from earlier works and current research, this volume offers extensive descriptions of the environmental chemistry associated with exposure to chromium in air, water, and food and the biochemistry of chromium involved with its absorption, distribution, metabolism, and elimination as well as the toxicology and nutritional aspects of chromium chemistry. Special emphasis is placed on the influence of chemical speciation and effects like absorption, transportation, distribution, elimination and toxicity of chromium. Organized and indexed as a reference work on the nutritional benefits and the toxicological consequences of exposure to chromium and its compounds, food scientists, regulators clinical and environmental scientists and everyone involved with chromium and its compounds will find this up-to-date volume invaluable.

The Biological and Environmental Chemistry of Chromium

Science & Math

Salem, Harry

Katz, Sidney A.

Biological Sciences

Vch Verlagsgesellschaft Mbh

Nine chapters by leading researchers from a variety of disciplines examine the structure/activity of enzymes that depend on their surrounding, including other proteins, cofactors, substrates, the reaction medium, and even themselves. The modern techniques discussed, both experimental and calculational, range from the systematic use of crystal structures to the mathematics of fractals to the design of antibodies that behave as enzymes.

Molecular Structure and Energetics, Environmental Influences and Recognition in Enzyme Chemistry (Molecular Structure & Energetics) (Volume 10)

Greenberg, A.

A thorough introduction to organic photochemistry through the means of formulas, reaction schemes, diagrams, definitions, graphs and tables. Easy-to-understand, the reader will be able to follow each self-explanatory figure without any other assistance. The corresponding text supplements the figures when additional explanations are needed. It will be of immense value to upper level undergraduates and graduate students and to organic chemists who need to learn the rudiments of organic photochemistry.

Organic Photochemistry: A Visual Approach

Kopecký, Jan

Chemistry

This collection of ten articles by leading authorities makes accessible to the nonspecialist some of the newest concepts in chemistry. The contributors apply the isoelectronic principle to - fundamental rules for predicting molecular structure, - the properties of novel inorganic compounds, - the chemistry of positrons and other 'elementary' particles, - the energetics of 'inert' gas containing species, - the design of conducting polymers and electronic devices on a molecular scale. The book includes insights as diverse as the theoretical underpinning of the Valence Shell Electron Pair Repulsion (VSEPR) theory, the design of viable helium compounds and organic conductors, and the prediction of enthalpies of the formation of inorganic salts.

Molecular Structure and Energetics, From Atoms to Polymers Isoelectronic Analogies (Molecular Structure & Energetics) (Volume 11)

A comprehensive review of advances in one of today's most technologically important research fields. Spurred on by society's increasingly urgent demand for an inexpensive, environment-friendly alternative to the internal combustion engine, research into electrocatalytic fuel cells has yielded many exciting advances in the past few years. This rapid rate of progress, however, has created a daunting challenge for anyone attempting to track the important new trends in electrocatalysis by sorting through the huge and rapidly growing body of world literature in the field. Electrocatalysis was designed to save scientists hours of arduous legwork by providing an authoritative review of the most important recent advances in all technologically relevant aspects of electrocatalysis. Leading researchers from North America, Europe, and the Far East share what they know about an array of related topics, including: * Electrocatalysis of hydrogen and oxygen electrode reactions * Electrooxidation of small organic molecules * Design and synthesis of new electrocatalytic materials * The distribution and storage of hydrogen in metal hydrides * Hydrogenation of organic compounds as a means of hydrogen storage * Electron, ion, and atom transfer reactions * Influence of the double-layer structure on the rate of charge transfer * A unified theory of electron and ion transfer reactions at metal electrodes. Electrocatalysis is an indispensable working resource for electrochemists, chemical engineers, surface scientists, and materials scientists.

Electrocatalysis (Frontiers of Electrochemistry)

New edition of a classic discussion of good English usage. The deep learning, good sense and wit will inform and delight chemists and Chaucerians. Annotation copyright Book News, Inc. Portland, Or.

The Chemist's English: With "Say It in English, Please!"

Schoenfeld, Robert

Berlin Und Seine Bauten TI VII - Sozialbauten Und Sportstatten Bd A - Krankenhauser (German Edition)

Architekten- und Ingenieurverein zu Berlin e.V.

Arts & Photography

For some years now, steel construction has no longer been the reserve of specialists. To take advantage of all the possibilities offered by the modern steel industry in terms of a good fit of shape and material, the first rough design plays an important part in planning any structure. Tender or offer specifications based on Eurocode 3 will hopefully open the way to competitiveness using the international reasonable steel market. This book contains a short annotation about steel grades and qualities, followed by a basic introduction to the European safety concept, 104 tables for all European rolled sections, a selection of British and American sections, hot-rolled and cold-formed hollow sections as well as tables giving data on dimensions, properties and classification, design resistance, design buckling resistance and design lateral torsional buckling resistance moment under two different load conditions, based on the European buckling curves. These tables allow preliminary design, profile selection or a quick safety check of various structural members, so as to avoid time-consuming computer analysis, or to check the plausibility of results so obtained.

International Structural Steel Sections: Design Tables According to Eurocode 3

Engineering & Transportation

Dujmovic, Darko

Androic, Boris

Dzeba, Ivica

Engineering

Otl Aicher's writings are explorations of the world, a substantive part of his work. In moving through the history of thought and design, building and construction, he assures us of the possibilities of arranging existence in a humane fashion. As ever he is concerned with the question of the conditions needed to produce a civilised culture. These conditions have to be fought for against apparent factual or material constraints and spiritual and intellectual substitutes on offer.Otl Aicher likes a dispute. For this reason, the volume contains polemical statements on cultural and political subjects as well as practical reports and historical exposition. He fights with productive obstinacy, above all for the renewal of Modernism, which he claims has largely exhausted itself in aesthetic visions; he insists the ordinary working day is still more important than the "cultural Sunday".

World as Design

Aicher, Otl

Stock, Wolfgang Jean

History & Criticism

Ein in der Öffentlichkeit im In- und Ausland breit diskutierter Fall wissenschaftlichen Fehlverhaltens hat das Präsidium der Deutschen Forschungsgemeinschaft veranlaßt, eine international zusammengesetzte Kommission zu berufen und sie zu bitten,- Ursachen von Unredlichkeit im Wissenschaftssystem nachzugehen- präventive Gegenmaßnahmen zu diskutieren- die existierenden Mechanismen wissenschaftlicher Selbstkontrolle zu überprüfen und Empfehlungen zu ihrer Sicherung zu geben.Die Kommission legt als Ergebnis ihrer Arbeit Empfehlungen vor, die in dieser Broschüre aufgeführt sind. Sie sind mit Begründungen und Kommentaren versehen, die Anregungen für die Umsetzung enthalten. Ihnen folgt ein je kurzer Überblick über die Probleme im Wissenschaftssystem, mit denen die Kommission sich auseinandergesetzt hat, und über Lösungsansätze im Ausland, deren Kenntnis bei der Erarbeitung der Empfehlungen wichtig war.

Vorschlage zur Sicherung Guter Wissenschaftlicher Praxis/Safeguard Good Scientific Practice: Empfehlungen der Kommission "Selbstkontrolle in der Wissenchaft"/Recommendations of the Commission on Professional Self Regulation in Science Denkschrift

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Books by Vch Verlagsgesellschaft Mbh