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Taschenbuch. Zustand: Neu. Neuware - This book presents theories and techniques for perception of textures by computer. Texture is a homogeneous visual pattern that we perceive in surfaces of objects such as textiles, tree barks or stones. Texture analysis is one of the first important steps in computer vision since texture provides important cues to recognize real-world objects. A major part of the book is devoted to two-dimensional analysis of texture patterns by extracting statistical and structural features. It also deals with the shape-from-texture problem which addresses recovery of the three-dimensional surface shapes based on the geometry of projection of the surface texture to the image plane. Perception is still largely mysterious. Realizing a computer vision system that can work in the real world requires more research and ex periment. Capability of textural perception is a key component. We hope this book will contribute to the advancement of computer vision toward robust, useful systems. vVe would like to express our appreciation to Professor Takeo Kanade at Carnegie Mellon University for his encouragement and help in writing this book; to the members of Computer Vision Section at Electrotechni cal Laboratory for providing an excellent research environment; and to Carl W. Harris at Kluwer Academic Publishers for his help in preparing the manuscript.

Taschenbuch. Zustand: Neu. Neuware - Over 100 scientists met at the IBM Research Laboratory in San Jose. California for a symposium on the Physics and Chemistry of Liquid Crystal Devices. The two-day meeting was intellectually stimulating with excellent oral presentations and with person-to-person discussions. The applications of liquid crystals have developed dramatically in the past ten years. In these few years, they have moved from being a laboratory curiosity to products in the market place. The first commercial application (1940's) of liquid crystals was the preparation of a light polarizer. The second commercial application was their use as temperature sensors. The third major application of liquid crystals dealt with commercial displays. Other current applications include polymeric and graphitic fibers and light attenuators. The future of liquid crystals looks very promising indeed. One can expect to see new fibers of qualities which will be superior to those presently known. Graphitic fibers or other physical forms of graphitic materials will be used as catalytic surfaces for chemical synthesis. In the display area. one can expect to see television screens using liquid crystals. Larger displays than are now used in wrist watches and pocket calculators will become available. Liquid crystals using color displays will become commercially practical. Watches. calculators and television screens will have color.

Taschenbuch. Zustand: Neu. Neuware - This volume and future ones in the series, which is now under new editorship. depart from the pattern established by previous volumes in containing chapters loosely related to one another. It is thus appropriate that each volume should have a relevant subtitle. In the present volume the underlying theme is immu nology and its application to the study of a number of different biochemical systems. Almost inevitably, the study of the cell-surface antigens and glycoproteins of a number of different tissues tends to dominate the contents, but considerable emphasis is also placed on subcellular organelles and enzymes. Undoubtedly, it is the impact of readily available monoclonal antibodies that dominates work in the field. The epitope specificity provided by monoclonal antibodies gives the biochemist a powerful lever with which to probe the location, structure, and function of cellular protein and glycoprotein antigens. A number of the chapters included in this volume have a strong biomedical emphasis. This is indeed intentional, as it is now the policy of the series to cover the more applied aspects ofthe subject, while in no way neglecting more fundamentaltopics in subcellular biochemistry.

Taschenbuch. Zustand: Neu. Neuware - From the President of the Research Society on Alcoholism In the last decade research concerning the causes and consequences of alcohol abuse and alcoholism has come of age. We have witnessed a plethora of sci entific findings that have shed light on some of the actions of alcohol at the molecular level. Interesting new data have been forthcoming on the complexi ties of the development of tolerance to alcohol. It is becoming increasingly appropriate to consider that tolerance to alcohol involves biological as well as psychological factors. New scientific insights have been gained concerning the treatment of with drawal as well as the presence of persistent withdrawal signs that may possibly be involved with relapse. More recently, new and compelling data indicating that alcoholism is a common familial disorder have appeared. Clinical studies indicate that alcoholism is a heterogeneous disorder with multiformity in clin ical symptomatology and genetic heterogeneity. The heterogeneity of the clin ical features and the heritability of the predisposing factors of alcoholism are currently under vigorous scientific investigation. In the past several years sophisticated psychosocial studies have provided fundamental information on subjects at high risk for alcoholism. Psychosocial and biological studies of families including alcoholics and subjects at high risk are likely to bring new insights to our understanding of etiological factors. Moreover, as a result of these studies we stand to develop better prevention initiatives and treatment approaches.

Taschenbuch. Zustand: Neu. Neuware - This volume comprises the proceedings of the sixth in a series of International Symposia devoted to basic and clinical aspects of urolithiasis. Previous symposia have been held at intervals of four years in Leeds, Madrid, Davos, Williamsburg, and Garmisch-Partenkirchen. The sixth symposium was held in Vancouver, British Columbia and was attended by over 250 participants from 26 countries around the world. As may be seen from the contents of this volume, the meeting covered many aspects of urolithiasis including the underlying physiology, crystal formation and the effects of inhibitors and promoters on crystallization, endocrinology and abnormalities of urinary composition, analyses, geography and epidemiology, and medical and surgical treatment with a special emphasis on extracorporeal lithotripsy. Internationally-recognized authorities gave invited talks in each of these areas, and from the submitted abstracts 30 were selected for oral presentation and the remainder were presented in either general or theme poster sessions. The nine theme-poster sessions provided a particularly valuable and successful feature of the meeting, giving an opportunity for a group of researchers working in related areas to present their posters and also to give a brief oral summary which was followed by discussion with the audience. Each of these poster sessions was chaired by two experts in the field who have provided an overview of each theme-poster session for this volume.