Springer us jan 1976 (4 risultati)

Taschenbuch. Condizione: Neu. Neuware - The emergence of M6ssbauer spectroscopy as an important experi mental technique for the study of solids has resulted in a wide range of applications in chemistry, physics, metallurgy and biophysics. This book is intended to summarize the elementary principles of the technique at a level appropriate to the advanced student or experienced chemist requiring a moderately comprehensive but basically non-mathematical introduction. Thus the major part of the book is concerned with the practical applications of Mossbauer spectroscopy, using carefully selected examples to illustrate the concepts. The references cited and the bibliography are intended to provide a bridge to the main literature for those who subseouent ly require a deeper knowledge. The text is complementary to the longer research monograph, 'Mossbauer Spectroscopy', which was written a few years ago in co-authorship with Professor N.N. Greenwood, and to whom I am deeply indebted for reading the preliminary draft of the present volume. I also wish to thank my many colleagues over the past ten years, and in particular Dr. R. Greatrex, for the many stimu lating discussions which we have had together. However my greatest debt is to my wife, who not only had to tolerate my eccen tricities during the gestation period, but being a chemist herself was also able to provide much useful criticism of the penultirna te draft.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware 356 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This new se ries is concerned with intercellular communication and recognition. It is now widely appreciated that these processes playa crucial role in virtually all biological systems and functions. These encompass fertilisation, embryonic development, infectious interactions, the activity of the nervous system, the regulation of growth and develop ment by hormones and the immune response to foreign or 'non-self antigens. Historically as described in the first review in this volume, the general concept of cell-associated receptors as the molecular entity primarily responsible for the specificity of signal recognition arose independently in the fields of immunology, pharmacology and developmental biology. From an early stage the analogy between cellular recognition and the discriminatory activity of antibodies and enzymes was emphasised. A vital conceptual advance, expressed most c1early by Linus Pauling and Paul Weiss, was the idea that non-covalent molecular interactions (of proteins in particular) were responsible forbiological specificity in in general. In the last decade several major advances have led to a new level of understanding of the molecular basis of cellular recognition. In several systems (in particular with neurotransmitters, hormones and antigens) it is possible to direct1y demonstrate the existence of receptors - associated in each case with the cell surface. These studies have been paralleled by equally important insights into the general structure and organisation of cell membranes and the possible ways in which signals arriving from the 'outside' can be transduced across the cell surface membrane to induce or regulate the cell's programmed responses. 184 pp. Englisch. …

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book is intended for the senior undergraduate (Honours student) in genetics, and for the postgraduate who wants a survey of the whole field or information on a special area within it. In order to cater for readers with such different requirements, I have made the list of references unusually large for a textbook. It includes classical papers as well as very recent ones (to the end of 1974); reviews as well as specialized articles; elementary expositions from Scientific American as well as highly technical papers from journals on genetics and molecular biology. In areas of active research, I have given preference to the latest references, which will lead the reader to earlier ones. In addition to the references at the end of each chapter, a bibliography at the end of the book lists relevant books and general reviews. Apart from the first chapter, the book is not written as a history of mutation research; but throughout I have tried to emphasize the continuity of the problems, concepts and ideas. The reader will find many examples of this. Muller's once famous and then almost forgotten classification of genes by their action has now been given biochemical reality by studies of gene action in vitro. The problem of whether mutations can arise in non-replicating genomes is one of the oldest in mutation research; yet an unequivocal solution was obtained only recently with bacteriophage. 536 pp. Englisch.…