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Emphasis for the second conference on the history of information science systems was on scientific and technical information systems in the period from the Second World War up through the early 1990s. These proceedings present the papers of historians of science and technology, information scientists, and scientists in other fields on a wide range of topics: informatics in chemistry; biology and medicine; information developments in multinational, industrial, and military settings; biographical studies of pioneering individuals; and the transformation of information systems and formats in the twentieth century.
Similarities in chemical reactivity depend on molecular properties, and are ultimately dependent on the similarities of electronic structures. Fundamentally, quantum chemical similarities are manifested in similarities of molecular behaviour. This book covers both the quantum chemical origins and the methods of phenomenological descriptions of molecular similarity. The emphasis on reactivity is a unique feature. The exposition of computational methods and the prediction of reactivities, as well as the description of actual computer programs constitute important aspects of the book. Specific applications in drug design and techniques for the interpretation of the roles of functional groups in reactivity are of interest in molecular engineering. The selection of topics provides a detailed and balanced introduction to the field of similarity-based assessment of chemical reactivity. For researchers and graduate students in both fundamental chemistry and applied fields, such as biochemistry, pharmacology and drug design.
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Volume 1: General Introduction to Molecular Sciences Volume 2: Physical Aspects of Molecular Systems Volume 3: Electronic Structure and Chemical Reactivity Volume 4: Molecular Phenomena in Biological Sciences
9780080211978 Physical Organic Chemistry - 3 (Montpellier, 1976) is a collection of plenary lectures presented at the Third IUPAC Conference on Physical Organic Chemistry, held in Montpellier, France on September 6-10, 1976. This book is composed of nine chapters and begins with an examination of the concept of absolute equilibrium acidity scale and its application to structure-activity relationship evaluation. The succeeding chapters deal with micellar catalysis and inhibition, as well as the application of quantum chemical ab initio methods to CO, CS, and related double bonds. These topics are followed by discussions of the hydrolysis of acetals and hemiacetals; the mechanisms and catalysis in vinyl ester hydrolysis; and the acid-base catalysis of carbonyl and acyl group reactions. The final chapters explore the strain energy modeling of simple and crowded aliphatic ketones. These chapters also look into the stereochemistry of dissolving metal reduction of ketones and the hydrolysis of phosphate esters. This book will be of value to physical chemists and physical chemistry researchers and students.
Fondements épistémologiques et théoriques de la science de l’information-documentation regroupe les communications du 11e colloque international d’ISKO France organisé à l’UNESCO en juillet 2017. Il rend hommage aux visionnaires et aux théoriciens francophones des sciences de l’information-documentation qui ont contribué à l’essor de celles-ci dans l’espace francophone et bien au-delà : Paul Otlet, Suzanne Briet, Jean-Claude Gardin, Éric de Grolier, Jean Meyriat, Robert Escarpit, Robert Pagès, Madeleine Wolff-Terroine, Jacques Maniez, Jacques Chaumier et George Van Slype. Les 34 contributions que renferme cet ouvrage confirment le rôle de premier plan joué par ces pi...
This book constitutes the Proceedings of the conference 'Chemical Structures: The International Language of Chemistry' which was held at Leeuwenhorst Congress Centre, Noordwijkerhout in the Netherlands, between May 31 and June 4, 1987. The conference was jointly sponsored by the Chemical Structure Association, the American Chemical Society Division of Chemical Information, and the Chemical Information Groups of the Royal Society of Chemistry and the German Chemical Society. The purpose of the conference was to bring together experts and an international professional audience to discuss and to further basic and applied research and development in the processing, storage, retrieval and use of ...