springer us sep 1997 (13 Ergebnisse)

Buch. Zustand: Neu. Neuware - Selected Areas in Cryptography brings together in one place important contributions and up-to-date research results in this fast moving area. Selected Areas in Cryptography serves as an excellent reference, providing insight into some of the most challenging research issues in the field.

Buch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - Life in coastal sand dunes, salt marshes and shingle banks presents a variety of challenges to their inhabitants. By describing the interactions of coastal organisms with the physical processes shaping the granular deposits within and on which they live, the authors illuminate many aspects of adaptation, population dynamics, community ecology, zonation and ecophysiology. A wide range of biological principles and geomorphological features are illustrated and there is lively discussion of the relevant aspects of applied biology, environmental threat and conservation management. Well-chosen examples and case studies have been drawn from coastal systems around the world, particularly those of the British Isles, continental Europe and North America.

Buch. Zustand: Neu. Neuware - Cytokines are cellular growth factors which also provide communication between cells and their milieu. This clearly is an exciting area in modern medicine that will have significant impact on various facets of transfusion. Erythropoietin therapy stimulates red cell production while thrombopoietin seems to positively affect megakaryopoiesis and can be an added armamentarium for the thrombocytopenic patient. Using haematnopoietic growth factors, stem cells could be mobilized early to the peripheral blood for collection and subsequent transplantation into haemato-oncology patients instead of bone marrow transplantation. Using a cocktail of cytokines in cell culture, stem cells could be expanded and selected for therapy. Cytokines and growth factors can even be modified, which may lead to successful gene therapy in malignancies, including solid tumour vaccines. However, the presence of cytokines in certain blood products could have biological effects following transfusion, although its clinical relevance needs to be ascertained. There is much potential for the use of cytokines in the treatment of infections. Early diagnostic methods are now available to monitor their levels and relevance. It is likely that cytokines will increasingly play a role in therapy and could develop our fundamental knowledge about the development of T-cells. An ethical dilemma remains, however, regarding the use of cytokines in healthy donors for harvesting suitable specific cells. Longer clinical observation will be necessary to gather the necessary information. Cytokines and growth factors in blood transfusion was the theme of the 21st International Symposium in Blood Transfusion, where twenty clinicians and scientists, experts in their own fields, were invited to update the above information. Their findings are presented in four sections in this volume: Fundamental aspects - cytokines in development of T-cells, growth factors in haematopoiesis, growth factor receptors and signal transduction, cytokine response in platelet and whole blood transfusions. Function, production and diagnosis &endash; laboratory diagnostics of cytokines and growth factors, cytokines in blood components, cytokines and growth factors in cell expansions, cytokines for genetic modification towards gene therapy, progenitor cells from healthy donors. Application in clinical medicine &endash; clinical relevance of cytokines in transfusion products, cytokines and growth factors in solid tumours, gene therapy in malignancies, vaccine strategies inducing T-cell immunity against tumours, cytokines in the treatment of infections, thrombopoietin and megakaryopoiesis. Future potential use in transfusion medicine &endash; erythropoietin, immunotherapy, ethical aspects of the use of cytokines and growth factors in donors, potential of cytokines and growth factors in transfusion medicine.

Buch. Zustand: Neu. Neuware - Leading specialists on Cajun French and Louisiana Creole examine dialectology and sociolinguistics in this volume, the first comprehensive treatment of the linguistic situation of francophone Louisiana and its relation to the current development of French in North America outside of Quebec. Topics discussed include: language shift and code mixing speaker attitudes the role of schools and media in the maintenance of these languages and such language planning initiatives as the CODOFIL program to revive the sue of French in Louisiana. £/LIST£.

Buch. Zustand: Neu. Neuware - Flexible Query Answering Systems is an edited collection of contributed chapters. It focuses on developing computer systems capable of transforming a query into an answer with useful information. The emphasis is on problems associated with high-level intelligent answering systems. The coverage is multidisciplinary with chapters by authors from information science, logic, fuzzy systems, databases, artificial intelligence and knowledge representation. Each contribution represents a theory involving flexibility in query-answering, and each addresses specific answering problems. Coverage includes topics such as fuzzy sets in flexible querying, non-standard database interactions, metareasoning and agents, and many others. Contributions for this volume were written by leading researchers from their respective subject areas, including Patrick Bosc, Bernadette Bouchon-Meunier, Amihai Motro, Henri Prade and Ron Yager, among others. Flexible Query Answering Systems is a timely contribution for researchers working on high-level query mechanism systems.

Buch. Zustand: Neu. Neuware - by Professor Alessandro Sinatra xi There are two categories which divide academic writing. The first category is made up of those which gather and systemize a developed thought, while the second is made up of those which detail a learning process which is presently occurring. This book belongs to the second category. It is intended to offer evidence of a still continuing research process which began three years ago. This reseach, undertaken simultaneously in Europe, the United States and Japan, has provided interesting evidence as to the conditions which must be present within a company in order to ensure continuous change. The object of our research has been to galvanize academics and managers into a debate which is especially relevant today: that of the ability of a company to anticipate or respond to changes which are occurring in its environment. Today more than ever, the ability to change culture and organizational structure are conditions which ensure a company's success, or more often, permit its survival. This book offers ten case studies about ten different large international firms, and about how they approached the problem of strategic change. In addition, there are ten articles which analyze the empirical evidence presented in the cases, and which try to provide and develop a general framework which can be used in a variety of situations. The cases represent an empirical base of reference. For the manager, they can serve as a source of benchmarking with the present situation of herlhis company.

Buch. Zustand: Neu. Neuware - 2. High Temperature UHV-STM System 264 3. Hydrogen Desorption Process on Si (111) Surface 264 4. (7x7) - (1 xl) Phase Transition on Si (111) Surface 271 Step Shifting under dc Electric Fields 275 5. 6. Conclusions 280 Acknowledgements and References 281 12. DYNAMIC OBSERVATION OF VORTICES IN SUPERCONDUCTORS USING ELECTRON WAVES 283 by Akira Tonomura 1. Introduction 283 2. Experimental Method 284 2. 1 Interference Microscopy 284 2. 2 Lorentz Microscopy 287 Observation of Superconducting Vortices 288 3. 3. 1 Superconducting Vortices Observed by Interference Microscopy 288 3. 1. 1 Profile Mode 288 3. 1. 2 Transmission Mode 291 3. 2 Superconducting Vortices Observed by Lorentz Microscopy 293 3. 3 Observation of Vortex Interaction with Pinning Centers 294 3. 3. 1 Surface Steps 295 3. 3. 2 Irradiated Point Defects 296 4. Conclusion 298 References 299 13. TEM STUDIES OF SOME STRUCTURALLY FLEXIBLE SOLIDS AND THEIR ASSOCIATED PHASE TRANSFORMATIONS 301 by Ray L. Withers and John G. Thompson 1. Introduction 301 2. Tetrahedrally Comer-Connected Framework Structures 302 3. Tetragonal a-PbO 311 4. Compositionally Flexible Anion-Deficient Fluorites and the 'Defect Fluorite' to C-type Sesquioxide Transition 320 5. Summary and Conclusions 327 Acknowledgements and References 327 Author Index 331 Subject Index 333 List of Contributors A. ASEEV Institute of Semiconductor Physics, Russian Academy of Sciences Novosibirsk, 630090, pr. ac. , Lavrentjeva 13, RUSSIA E. BAUER Department of Physics and Astronomy, Arizona State University Tempe, AZ 85287-1504, U. S. A. G. H.

Buch. Zustand: Neu. Neuware - Engineering Intelligent Hybrid Multi-Agent Systems is about building intelligent hybrid systems. Included is coverage of applications and design concepts related to fusion systems, transformation systems and combination systems. These applications are in areas involving hybrid configurations of knowledge-based systems, case-based reasoning, fuzzy systems, artificial neural networks, genetic algorithms, and in knowledge discovery and data mining. Through examples and applications a synergy of these subjects is demonstrated. The authors introduce a multi-agent architectural theory for engineering intelligent associative hybrid systems. The architectural theory is described at both the task structure level and the computational level. This problem-solving architecture is relevant for developing knowledge agents and information agents. An enterprise-wide system modeling framework is outlined to facilitate forward and backward integration of systems developed in the knowledge, information, and data engineering layers of an organization. In the modeling process, software engineering aspects like agent oriented analysis, design and reuse are developed and described. Engineering Intelligent Hybrid Multi-Agent Systems is the first book in the field to provide details of a multi-agent architecture for building intelligent hybrid systems.

Buch. Zustand: Neu. Neuware - This book stems from a conference held at Magdeburg-Herrenkrug, Germany, in November 1996 on 'Cellular Peptidases in Immune Functions and Diseases. ' This sympo sium was designed to bring together scientists from diverse areas of expertise to discuss issues of newly identified relevance of proteolytic processes and their role as molecular regulators in the immune system and in diseases. The meeting was organized by the Son derforschungsbereich 387 of the Deutsche Forschungsgemeinschaft 'ZelluHire Proteasen, Bedeutung fiir Immunmechanismen und entziindliche Erkrankungen,' which links re search groups from the Otto von Guericke University Magdeburg and the Martin Luther University Halle. It has become clear during the last decade that proteolysis, the processing and degrada tion of peptides and proteins, has to be considered as a special level of epigenetic control of practically all processes of life and-an understanding dating from the last three years or so--also of cell death or apoptosis. There is also increasing evidence that proteolysis does play a crucial role in all areas of immune functions as well as in inflammatory and neoplastic diseases. Cellular proteases have central functions in natural (nonspecific) as well as acquired in the cognitive phase (antigen processing and presen (specific) immunity. They are involved tation), in the activation phase (e. g. , generation and processing of cytokines, function of CD26, CD 13, processing of transcription factors) as well as in the effector phase of the im mune response (e. g. , complement system, granzymes, elastase, proteinase 3.

Buch. Zustand: Neu. Neuware - To the classical driving forces of migration such as poverty, oppression and war, yet another is being added: globalization. With the increasing economic interdependence between countries migration has become one of the important links. Many less developed countries (LDCs) accept migration of their workers to developed countries (DCs) because it reduces the pressure on unemployment, and remittances increase the capital inflow to the country. On the other hand, some of the DCs see migration as a threat to their employment and system of social security. Participants of the Second Annual Workshop of the Network EU-LDC Trade and Capital Relations gave a broad view of the problem which both DCs and LDCs are facing in connection with the globalization of labour markets. This volume consists of 10 chapters by scholars from the European Union (EU) and LDCs. Each paper is discussed in terms of its policy relevance by a policy maker as well as by an academic specializing in the field. In the opening chapter we aim to do justice to the discussion during the Workshop in Rotterdam in May 1995 at which preliminary versions of all chapters were presented. Edited versions of the interven tions by the policy makers and experts are included as far as possible af ter the chapters. The opinions expressed in this volume are those of the authors and not necessarily those of their organizations.

Buch. Zustand: Neu. Neuware - Real-time systems are defined as those for which correctness depends not only on the logical properties of the produced results, but also on the temporal properties of these results. In a database, real-time means that in addition to typical logical consistency constraints, such as a constraint on a data item's value, there are constraints on when transactions execute and on the `freshness' of the data transactions access. The challenges and tradeoffs faced by the designers of real-time database systems are quite different from those faced by the designers of general-purpose database systems. To achieve the fundamental requirements of timeliness and predictability, not only do conventional methods for scheduling and transaction management have to be redesigned, but also new concepts that have not been considered in conventional database systems or in real-time systems need to be added. Real-Time Database and Information Systems: Research Advances is devoted to new techniques for scheduling of transactions, concurrency management, transaction logging, database languages, and new distributed database architectures. Real-Time Database and Information Systems: Research Advances is primarily intended for practicing engineers and researchers working in the growing area of real-time database and information retrieval systems. For practitioners, the book will provide a much needed bridge for technology transfer and continued education. For researchers, the book will provide a comprehensive reference for well-established results. The book can also be used in a senior or graduate level course on real-time systems, real-time database systems, and database systems, or closely related courses.

Buch. Zustand: Neu. Neuware - Fiber Optics Vocabulary Development In 1979, the National Communications System published Technical InfonnationBulle tin TB 79-1, Vocabulary for Fiber Optics and Lightwave Communications, written by this author. Based on a draft prepared by this author, the National Communications System published Federal Standard FED-STD-1037, Glossary of Telecommunications Terms, in 1980 with no fiber optics tenns. In 1981, the first edition of this dictionary was published under the title Fiber Optics and Lightwave Communications Standard Dictionary. In 1982, the then National Bureau of Standards, now the National Institute of Standards and Technology, published NBS Handbook 140, Optical Waveguide Communications Glossary, which was also published by the General Services Admin istration as PB82-166257 under the same title. Also in 1982, Dynamic Systems, Inc. , Fiberoptic Sensor Technology Handbook, co-authored and edited by published the this author, with an extensive Fiberoptic Sensors Glossary. In 1989, the handbook was republished by Optical Technologies, Inc. It contained the same glossary. In 1984, the Institute of Electrical and Electronic Engineers published IEEE Standard 812-1984, Definitions of Terms Relating to Fiber Optics. In 1986, with the assistance of this author, the National Communications System published FED-STD-1037A, Glossary of Telecommunications Terms, with a few fiber optics tenns. In 1988, the Electronics Industries Association issued EIA-440A, Fiber Optic Terminology, based primarily on PB82-166257. The International Electrotechnical Commission then pub lished IEC 731, Optical Communications, Terms and Definitions. In 1989, the second edition of this dictionary was published.

Buch. Zustand: Neu. Neuware - This volume constitutes, in part, the proceedings of the Hong Kong Conference on 'Eicosanoids and Other Bioactive Lipids in Cancer, Inflammation, and Radiation Injury' held in Hong Kong in October 1995. It contains papers by the symposium speakers, as well as poster contributions from researchers in this field. Since the discovery of 'PROSTAGLANDIN-LIKE' substances 60 years ago. much has been learned. EICOSANOID is the new term that is used to include prostaglandins. thromboxanes, leukotrienes, lipoxins, isoprostanes, depoxilins, hydroxy acids, epoxy and hydroperoxy fatty acids. The conference focussed on recent development in underatanding the role of EICOSANOIDS in inflammation, cancer, and radiation damage. At the confer ence, we also highlighted advances in newly developing areas such as 'NO,' 'A POP TOSIS and 'ANANDAMIDE.' The discovery of the structures of genes that encode several key enzymes and receptors of the Eicosanoid cascade, has allowed us to include reports in the 'Alteration of the Gene Expression' section that reflects the most recent de velopments in regulation for PGH-synthase and lipoxygenases. The editors are convinced that this volume will be an up-to-date and useful reference for investigators in both basic and clinical research.