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Taschenbuch. Condizione: Neu. Neuware -Following the development of gray-scale imaging, real-time scanning, Doppler examination, and high-frequency sonography, endosonography is one of the latest major breakthroughs in the history of diagnostic ultrasound. Although early attempts at inserting ultrasound transducers in natural cavities of the body can be traced back more than two decades, only in the past few years has technology allowed the development and commercialization of effective, easy-to-use endosono scopic probes. Because the transducer can be placed in direct contact with or close to lesions, high frequencies (up to ~2 MHz) can be used, yielding cross-sectional images of unsurpassed resolution. The availability of specially designed intracorporeal probes for specific natural cavities that are routinely explored by conventional (optical) endoscopy or palpation has significantly expanded the diagnostic applications of sonography. Transrectal and transvaginal examinations are now performed routinely in many institutions, and virtually all sonographic equipment manufac turers have in their line of products at least one endorectal and one endovaginal transducer. Most endosonoscopic probes connect to existing scanners, and for radiology departments, the invest ment for transrectal or transvaginal scanning will usually be limited to the purchase of the specific probe. In this book, clinical applications of endosonography (excluding transesophageal echocardio graphy) are covered by European and North American experts. Current equipment and techniques of examination are described in detail to help newcomers get started in the field of endosonography. 200 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -The thirty-five chapters in this book are edited versions of papers presented at the Advanced Research Workshop, State Intervention on Behalf of Children and Youth, which took place in Maratea, Italy, February 20-24, 1989. The Workshop was attended by leading child welfare researchers from most of the Western countries. Represented were scholars and practitioners from disciplines as diverse as law, social work, neurology, economics, political science, education, psychology, and psychiatry. This variety of disciplines considerably enriched the discussions at the Workshop and is reflected in a set of interesting and, we believe, potentially useful research papers. This book is divided into four sections, each dealing with dominant themes of state intervention. The first section deals with research on organizing for state intervention and related ways of providing accountability. The second section deals with research on young persons in conflict with the law, the third with research on child abuse and the final section with research on children in care. Many of the matters addressed in these papers relate to more than one of the topical theme headings and, therefore, might well have been located in different sections of the volume. Each section is introduced by an introductory statement that provides an overview of the papers and issues addressed, and suggests an agenda of research work to be undertaken. These introductions are based largely on workshop discussions and do not necessarily represent the views of their identified authors.

Taschenbuch. Condizione: Neu. Neuware -The farming of deer as an alternative to traditional livestock enterprises is now firmly established and is expanding within several countries of the European Economic Community. However, the successful farming of deer requires the adoption of appropriate management schemes to accommodate the biological requirements of these animals. Much experience has now been gained and it is essential that this information becomes readily available througout the Community. In addition, as the volume of deer farming has increased a number of health problems have become recognised which present features distinct from other domestic ruminants. Although knowledge is still incomplete it would appear that deer may react to certain pathogens in a very different way to other domestic ruminants, presenting new problems of diagnosis and control. The rapid detection of these conditions and development of appropriate control strategies will be essential for the establishment of an economically viable deer farming industry in the Community. Much of the information on the management of farmed deer and their diseases is anecdotal and fragmented and the purpose of this meeting was to accelerate the dissemination of this knowledge between scientists in the Community committed to the development of this area of agricultural industry. The meeting, financed by the Commission of the European Communities from its budget for the Coordination of Agricultural Research in the Community was held in Scotland, on the 10th to 11th December, 1987.

Taschenbuch. Condizione: Neu. Neuware -Until the early seventies, tautomeric i. e. fast and reversible rearrangement reactions accompanied by migrations of carbon-centered groups - were practi cally unknown. For a long time it was assumed that the family of tautomeric reactions was confined to proto tropic transformations only. However, the discovery in the fifties of the reversible metallotropic rearrangements showed the domain of migratory tautomerism to be substantially broader. The synthesis of the metallotropic compounds was based on the substitution of a proton in prototropic compounds by an organometallic group. This approach rarely proved fruitful when attempting to effect tautomeric rearrangements of organic and organometallic groups formed by the elements to the right of carbon in the Periodic Table. By contrast, a novel approach involving an analysis of the steric requirements inherent in the structure of the transition state of a reactive center and an examination of the stereodynamic possibilities has given rise to a target-oriented molecular design of compounds capable of rapid and reversible intramolecular migration of the type indicated. The implementation of this ap proach, which is the subject of the present book, has already led to the preparation of new tautomeric compounds in which such heavy organic migrants as acyl, aryl, sulfinyl, phosphoryl, arsinyl, and other groups migrate in molecules at a frequency 6 9 of 10 -10 S-I at ambient temperature, i. e. , at the rates comparable with protonic migrations.

Taschenbuch. Condizione: Neu. Neuware - The farming of deer as an alternative to traditional livestock enterprises is now firmly established and is expanding within several countries of the European Economic Community. However, the successful farming of deer requires the adoption of appropriate management schemes to accommodate the biological requirements of these animals. Much experience has now been gained and it is essential that this information becomes readily available througout the Community. In addition, as the volume of deer farming has increased a number of health problems have become recognised which present features distinct from other domestic ruminants. Although knowledge is still incomplete it would appear that deer may react to certain pathogens in a very different way to other domestic ruminants, presenting new problems of diagnosis and control. The rapid detection of these conditions and development of appropriate control strategies will be essential for the establishment of an economically viable deer farming industry in the Community. Much of the information on the management of farmed deer and their diseases is anecdotal and fragmented and the purpose of this meeting was to accelerate the dissemination of this knowledge between scientists in the Community committed to the development of this area of agricultural industry. The meeting, financed by the Commission of the European Communities from its budget for the Coordination of Agricultural Research in the Community was held in Scotland, on the 10th to 11th December, 1987.

Taschenbuch. Condizione: Neu. Neuware - Until the early seventies, tautomeric i. e. fast and reversible rearrangement reactions accompanied by migrations of carbon-centered groups - were practi cally unknown. For a long time it was assumed that the family of tautomeric reactions was confined to proto tropic transformations only. However, the discovery in the fifties of the reversible metallotropic rearrangements showed the domain of migratory tautomerism to be substantially broader. The synthesis of the metallotropic compounds was based on the substitution of a proton in prototropic compounds by an organometallic group. This approach rarely proved fruitful when attempting to effect tautomeric rearrangements of organic and organometallic groups formed by the elements to the right of carbon in the Periodic Table. By contrast, a novel approach involving an analysis of the steric requirements inherent in the structure of the transition state of a reactive center and an examination of the stereodynamic possibilities has given rise to a target-oriented molecular design of compounds capable of rapid and reversible intramolecular migration of the type indicated. The implementation of this ap proach, which is the subject of the present book, has already led to the preparation of new tautomeric compounds in which such heavy organic migrants as acyl, aryl, sulfinyl, phosphoryl, arsinyl, and other groups migrate in molecules at a frequency 6 9 of 10 -10 S-I at ambient temperature, i. e. , at the rates comparable with protonic migrations.

Taschenbuch. Condizione: Neu. Neuware - I. Livestock Systems and Nutrition.- The Contribution of Livestock Products to Human Dietary Needs with Special Reference to North Africa and West Asia.- The Importance of Barley in Food Production and Demand in West Asia and North Africa.- Research Strategies for Development: Improving Sheep and Goat Production in Developing Countries.- Increasing Feed Resources for Small Ruminants in the Mediterranean Basin.- A Comparison of Grazing and Browsing Ruminants in the Use of Feed Resources.- Improving Livestock Production from Straw-Based Diets.- II. Breeding.- Breeding Strategies for Small Ruminants in Arid and Semi-Arid Areas.- A Strategy for the Exploitation of Sheep Genotypes for Improved Flock Performance.- Sheep and Goats: Their Relative Potential for Milk and Meat Production in Semi-Arid Environments.- New Technologies for Animal Improvement and Developing Countries.- Selection for Lamb Growth in Libyan Barbary Sheep.- The Awassi Sheep Breeding Project in Syria.- Past Experiences of Sheep Improvement in Egypt and Future Directions.- Genetic Improvement of Sheep in Turkey.- Sheep Breeding in Jordan and a Proposed Awassi Breed Improvement Programme.- Genetic Improvement of Sheep in Cyprus by Selection and/or Crossbreeding.- III. Health.- Studying Husbandry and Health of Awassi Sheep in Bedouin Flocks: Evaluation of Methodology Using Initial Results.- Emerging Bacterial Diseases that can Affect Small Ruminant Production.- The Economic Significance and Control of Small Ruminant Viruses in North Africa and West Asia.- Controlling Livestock Diseases in the Tropics by Breeding: A Perspective.- Impact on Productivity and Epidemiology of Gastrointestinal and Lungworm Parasites in Sheep in Morocco.- Resistance of Sheep and Goats to Helminth Infections: A Genetic Basis.- The Potential Use of Vaccines or Genetically Resistant Animals in the Control of Helminthiasis.- Mechanisms of Immunity to Gastrointestinal Nematodes of Sheep.- Recommendations.- List of Authors and Participants.

Taschenbuch. Condizione: Neu. Neuware - The relationship between thought, language, and the world is an intimate one. When we have an idea or thought about the world and we wish to express that idea or thought to others we utter a sentence or make a statement. If the statement correctly describes the world then it is true. Moreover, it seems as though our ability to have more complex or sophisticated thoughts about the world increases as the complexity of our language or our ability to use the language increases. Understanding the complex relationship between language, thought, and the world is one of the central aims of philosophy. This book is an attempt to increase our understanding of this complex relationship by focusing on certain philosophical issues that arise from our ability to refer to objects in the world though the use of language. In particular, it is an attempt to solve the puzzles of reference and belief that Frege and Russell presented within the context of a theory of direct reference for proper names.

Taschenbuch. Condizione: Neu. Neuware - Reviews of Environmental Contamination and Toxicology publishes authoritative reviews on the occurrence, effects, and fate of pesticide residues and other environmental contaminants. It will keep you informed of the latest significant issues by providing in-depth information in the areas of analytical chemistry, agricultural microbiology, biochemistry, human and veterinary medicine, toxicology, and food technology.

Taschenbuch. Condizione: Neu. Neuware - Once again the gastroenterologists of northwestern Canada have come out with a series of essays advancing important modem concepts. As indefatigable as ever, they bring together the latest in clinical-pathophysiological considera- tions for the clinician. The topics run the gamut from the lovely liver to HIV infection, from the pathophysiology of bile flow to comments on antigens in colorectal cancer. It is always easy to publish a first volume, for enthusiasm is high and everyone is anxious to win a place. Bringing out a second volume, the carrying forward of a good idea, is so much harder. In many ways this second volume in the series marks the coming of age of Canadian gastroenterology, as 11 of the 21 contributors currently reside in Canada. Still, the contributions from the United Kingdom and the United States make this an Anglo-American festival. Reading the chapters will make you appreciate the care with which the contributors have garnered recent references to give up-to-date practical infor- mation for us all. I enjoyed all that I read. My congratulations to Drs. Shaffer and Thomson for a job well done. Howard M. Spiro, M.D. New Haven, Connecticut ix Preface This book is based on papers presented at the third symposium on Recent Ad- vances in Gastroenterology held by the Canadian Association of Gastroenter- ology. The proposed audience for this volume is the internist and the general surgeon, as well as those in the specialties of gastroenterology and hepatology.

Taschenbuch. Condizione: Neu. Neuware - Computing systems researchers confront two serious problems. (1) The increasingly monolithic, or pseudo-monolithic, integration of complex com puting functions and systems imposes an environment which integrates ad vanced principles and techniques from a broad variety of fields. Researchers not only must confront the increased complexity of topics in their specialty field but also must develop a deeper general understanding of a broadening number of fields. (2) There has been a proliferation of journals, books, workshops and conferences through which research results are reported. Remaining familiar with recent advances in our specific fields is a major challenge. Casually browsing through journals and conference proceedings to remain aware of developments in areas outside our specialization has become an even greater challenge. Frontiers of Computing Systems Research has been established to ad dress these two issues. With the assistance of an advisory board of experts from a wide variety of specialized areas, we hope to provide roughly annual volumes of invited chapters on a broad range of topics and designed for an interdisciplinary research audience. No single volume can cover all the rel evant topics and no single article can convey the full set of directions being pursued within a given topic. For this reason, a chapter listing technical reports available from universities is also included. Often, such unpub lished reports are designed for a general research audience and provide a good, informal look at trends in specialized research topics.

Taschenbuch. Condizione: Neu. Neuware - \*\*\*e FACHGEBIET\*\*\* Mathematical Geology, Computer Applications, Artificial Intelligence, Urban Economics and Regional Economics \*\*\*INTERESSENTENGRUPPE\*\*\* Of interest to Urban and Regional planners, civil engineers, geographers; computer scientists; operations researchers; landscape architects; and advanced students in the above disciplines.- Level: Technical Book, Monograph \*\*\*URHEBER\*\*\* T.J. Kim, University of Illinois, Champaign, IL; L.L. Wiggins, Massachusetts Institute of Technology, Cambridge, MA; J.R. Wright, Purdue University, Lafayette, IN (Eds.) \*\*\*TITEL\*\*\* Expert Systems: Applications to Urban Planning \*\*\*BIBLIOGRAPHISCHE-ANGABEN\*\*\* 1990. XIV, 268 pp. 48 figs. Hardcover DM 78,- ISBN 3-540-97171-8 \*\*\*LANGTEXT\*\*\* While expert systems have become a popular topic in the computing, medical and engineering fields, the expert system is still a new technology in urban planning. This book introduces expert systems for problem solving in urban planning and describes the way in which heuristic knowledge and rules of thumb of expert planners can be represented through computer programs. The book presents practical applications of expert systems for solving many important urban planning problems, particularly those issues that many practicing planners face in their daily operations. Problems and issues discussed are grouped in the following categories: - Land Use Planning - Transportation Planning - Site Selection and Analysis - Environmental Planning - Conflict Mediation and Legal Disputes - Future Developments and Directions Expert Systems: Applications to Urban Planning will benefit both urban planners who wish to learn how this new technology might be applied to their daily work as well as researchers in expert systems seeking new ideas for systems design.

Taschenbuch. Condizione: Neu. Neuware - Carnivores have always fascinated us, even though they make up only 10% of all mammalian genera and only about 2 % of all mammalian biomass. In Greek mythology most of the gods adorned their robes and helmets with depictions of carnivores, and the great hero Hercules' most famous feat was killing the 'invulnerable' lion with his bare hands. Part of our fascination with carnivores stems from fright and intrigue, and sometimes even hatred because of our direct competition with them. Cases of 'man-eating' lions, bears, and wolves, as well as carnivores' reputation as killers of livestock and game, provoke communities and govermllents to adopt sweeping policies to exterminate them. Even President Theodore Roosevelt, proclaimer of a new wildlife protectionism, described the wolf as 'the beast of waste and desolation. ' The sheer presence and power of carnivores is daunt- ing: they can move quickly yet silently through forests, attaining rapid bursts of speed when necessary; their massive muscles are aligned to deliver powerful attacks, their large canines and strong jaws rip open carcasses, and their scis- sor-like carnassials slice meat. Partly because of our fear of these attributes, trophy hunting of carnivores has been, and to a certain extent still is, a sign of bravery and skill. Among some Alaskan Inuit, for example, a man is not eligible for marriage until he has killed a succession of animals of increasing size and dangerousness, culminating with the most menacing, the polar bear.

Taschenbuch. Condizione: Neu. Neuware - For some time now, the study of cognitive development has been far and away the most active discipline within developmental psychology. Although there would be much disagreement as to the exact proportion of papers published in develop mental journals that could be considered cognitive, 50% seems like a conserva tive estimate. Hence, a series of scholarly books devoted to work in cognitive development is especially appropriate at this time. The Springer Series in Cognitive Development contains two basic types of books, namely, edited collections of original chapters by several autbors, and original volumes written by one author or a small group of authors. The flagship for the Springer Series is a serial publication of the 'advances' types, carrying the sub title Progress in Cognitive Development Research. Each volume in the Progress sequence is strongly thematic, in that it is limited to some well-defmed domain of cognitive-developmental research (e. g. , logical and mathematical development, development of learning). All Progress volumes will be edited collections. Editors of such collections, upon consultation with the Series Editor, may elect to have their books published either as contributions to the Progress sequence or as sepa rate volumes. All books written by one author or a small group of authors are being published as separate volumes within the series. A fairly broad defmition of cognitive development is being used in the selec tion of books for this series.

Taschenbuch. Condizione: Neu. Neuware - A great truth is a truth whose opposite. is also a great truth. Thomas Mann (Essay on Freud, 1937) This volume centers on pseudorabies (PR V), herpes simplex viruses 1 and 2 (HSV-1 and HSV-2), and human cytomegalovirus (CMV) and fulfills three objectives. The chapters on the epidemiology and latency of HSV, and on the glycoproteins specified by HSV and CMV, set the stage for the discussions of the immunobiology and pathogenesis of human herpesvirus infections in Volume 4. The epidemiology of HSV is the basis of our understanding of the spread and survival of this virus in the human populations. Central to the epidemiology of HSV and its pathogenesis in humans is the ability of the virus to remain in a latent state for the life of its host. The viral membrane glycoproteins are among the most interesting virion proteins, primarily because of their critical role in the initiation of infection. Since they are the surface membrane proteins of the virion and appear on the surface of productively infected cells, they are also the obvious if not the exclusive targets of the immune response. The chapters on the transforming potential of HSV and CMV, and on the role of HSV in human cancer, deal with challenging problems requiring rather different experimental tools.

Taschenbuch. Condizione: Neu. Neuware - Advances in Solar Energy is back on schedule. Volume III contains a number of interesting reviews of the different fields in solar energy conversion. We appreciate the many encouraging comments received after the second volume appeared and have incorporated some of the suggested changes. Even though most of the reviews are invited through our editors, we are always open to suggestion about subjects of importance that are ready for a com prehensive and critical review and have not been recently covered, or about potential authors. I would like to take this opportunity to thank Professor John A. Duffie for his invaluable help in starting the Advances in Solar Energy series. Although he has recently taken full responsibility as editor-in-chief for the Solar Energy Journal, his continued assistance as a member of the Board of Editors is greatly appreciated. The diligent work of the many active editors is gratefully acknowledged and constitutes the basis for a valuable review periodical with outstanding contributions. The typesetting was done by Sandra Pruitt in the Delaware office, using the TEX-program with laser print-out. Her organization and patience in coordinating with the authors, and her technical skill and diligence in preparing the submitted copy permitted the timely and high-quality assembly of this production. We wish to commend her for efforts well beyond the call of duty. The accommodating help from Plenum Press and its production staff deserves our grateful acknowledgement.

Taschenbuch. Condizione: Neu. Neuware - In times of general instability change management is a great challenge. Our fossil mental patterns are not sufficient any more to be able to navigate sensibly the global scenario of complexity. Metaphorical thinking is a method which releases creative impulses into every change process and is of practical use, activating collective knowledge as a new network resource at the same time. This book reflects modern economy, ecology, sustainability and perception from an artistic perspective. However, it is not so much about 'art', but rather how the modern artist takes on a serving role in the social arena again. He makes his creative knowledge available to connect processes of large-scale social development, he extends the boundaries of our scientifically limited world view and creates inspired playgrounds where the sensory-visionary can freely interact with the technically-necessary. This is no new aesthetic theory but rather a practical application of the creative process in operation at the crossroads of social interaction. Metaphorical thinking is emotionalized thinking and the observer is not separated from reality, but the centre, the starting point, of every change and new development. This volume offers creative ways to find solutions for a wide range of complex problems. It is a practical instrument for modern leadership and can be used to teach complexity in new ways. This work will help to create a global dialogue for sustainable change.Thsi book is also available in German: ISBN 978-90-481-9678-4.

Taschenbuch. Condizione: Neu. Neuware -1. The Problem of Tautomerism.- 1. Tautomerism as Dynamic Isomerism.- 2. Degenerate Tautomerism.- 3. Methods for Investigating Tautomeric Systems.- 4. Butlerov's and Laar's Tautomeric Systems.- 5. Tautomerism and the Mechanisms of Organic Reactions.- 6. Classification of Tautomeric Reactions.- 7. Conclusion.- References.- 2. Carbonotropy.- 1. The Problem of Carbonotropy.- 2. Sigmatropic Acyl and Aryl Rearrangements.- 3. Acylotropic Tautomerism.- 4. Tautomeric Rearrangements of Aryl Groups.- 5. Carbonotropic Tautomerism in Ions, Radicals and Cyclopolyenes.- References.- 3. General Principles of the Design of Tautomeric Systems.- 1. Possibilities of Quantum Mechanical Prediction of Tautomeric Reactions.- 2. Stereochemical Approach to the Design of Tautomeric Compounds.- References.- 4. The Mechanisms of Nucleophilic Substitution at the Main Group Element and Design of Intramolecular Tautomeric Systems.- 1. Tautomeric Rearrangements of Carbon-containing Groups.- 2. Silylotropic Tautomerism.- 3. Tautomeric Migrations of Phosphorus-containing Groups.- 4. Tautomeric Rearrangements of As-containing Groups.- 5. Tautomeric Rearrangements of Sulfur-containing Groups.- References.- 5. Dyotropic and Polytropic Tautomeric Systems.- 1. Scope and Definition.- 2. The Mechanism and Energetics of the Dyotropic Reactions.- References.- 6. Dissociative and Photochemical Mechanisms of Intramolecular Tautomerism.- 1. Heterolytic Dissociative Mechanism.- 2. Homolytic Dissociative Mechanism.- 3. Ion-Radical Mechanism.- 4. Photo-Initiated Carbonotropic Rearrangements.- References. 296 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -The thirty-five chapters in this book are edited versions of papers presented at the Advanced Research Workshop, State Intervention on Behalf of Children and Youth, which took place in Maratea, Italy, February 20-24, 1989. The Workshop was attended by leading child welfare researchers from most of the Western countries. Represented were scholars and practitioners from disciplines as diverse as law, social work, neurology, economics, political science, education, psychology, and psychiatry. This variety of disciplines considerably enriched the discussions at the Workshop and is reflected in a set of interesting and, we believe, potentially useful research papers. This book is divided into four sections, each dealing with dominant themes of state intervention. The first section deals with research on organizing for state intervention and related ways of providing accountability. The second section deals with research on young persons in conflict with the law, the third with research on child abuse and the final section with research on children in care. Many of the matters addressed in these papers relate to more than one of the topical theme headings and, therefore, might well have been located in different sections of the volume. Each section is introduced by an introductory statement that provides an overview of the papers and issues addressed, and suggests an agenda of research work to be undertaken. These introductions are based largely on workshop discussions and do not necessarily represent the views of their identified authors. 480 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -The farming of deer as an alternative to traditional livestock enterprises is now firmly established and is expanding within several countries of the European Economic Community. However, the successful farming of deer requires the adoption of appropriate management schemes to accommodate the biological requirements of these animals. Much experience has now been gained and it is essential that this information becomes readily available througout the Community. In addition, as the volume of deer farming has increased a number of health problems have become recognised which present features distinct from other domestic ruminants. Although knowledge is still incomplete it would appear that deer may react to certain pathogens in a very different way to other domestic ruminants, presenting new problems of diagnosis and control. The rapid detection of these conditions and development of appropriate control strategies will be essential for the establishment of an economically viable deer farming industry in the Community. Much of the information on the management of farmed deer and their diseases is anecdotal and fragmented and the purpose of this meeting was to accelerate the dissemination of this knowledge between scientists in the Community committed to the development of this area of agricultural industry. The meeting, financed by the Commission of the European Communities from its budget for the Coordination of Agricultural Research in the Community was held in Scotland, on the 10th to 11th December, 1987. 224 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware - The management of older people with diabetes requires careful attention to the specific needs of this age group. This practical handbook addresses the issues surrounding the care of older diabetic patients, including dementia, frailty, depression and cardiovascular risk. Intended for day-to-day use in clinical practice, each chapter closes with a list of salient practical points in the clinical management of older patients with diabetes. Concisely written by authorities in the field, this book is a valuable resource for all those involved in the diabetes care of older people .

Taschenbuch. Condizione: Neu. Neuware -With the rapid growth of bandwidth demand from network users and the advances in optical technologies, optical networks with multiterabits per-second capacity has received significant interest from both researchers and practitioners. Optical networks deployment raises a number of challenging problems that require innovative solutions, including net work architectures, scalable and fast network management, resource efficient routing and wavelength assignment algorithms, QoS support and scheduling algorithms, and switch and router architectures. In this book, we put together some important developments in this exiting area during last several years. Some of the articles are research papers and some are surveys. All articles were reviewed by two reviewers. The paper, 'On Dynamic Wavelength Assignment in WDM Optical Networks,' by Alanyali gives an overview of some issues in the analy sis and synthesis of dynamic wavelength assignment policies for optical WDM networks and illustrates a new method of analysis. The paper by Ellinas and Bala, 'Wavelength Assignment Algorithms for WDM Ring Architectures,' presents two optimal wavelength assignment algorithms that assign the minimum number of wavelengths between nodes on WDM rings to achieve full mesh connectivity. In the paper, 'Optimal Placement of Wavelength Converters in WDM Networks for Parallel and Distributed Computing Systems,' Jia et al.

Taschenbuch. Condizione: Neu. Neuware - Wireless personal communications, or wireless as it is now being called, has arrived. The hype is starting to fade, and the hard work of deploying new systems and services for personal communications is underway. In the United States, the FCC propelled the wireless era from infancy to mainstream with a $7.7 billion auction of 60 MHz of radio spectrum in the 180011900 MHz band. With the largest single sale of public property in the history of mankind mostly complete, the resources of the entire world are being called upon to develop inexpensive, rapidly deployable wireless systems and sub scriber units for an industry that is adding subscribers at greater than 50% annual rate. This growth is commonplace for wireless service companies throughout the world, and in the U.S., where as many as 7 licensed wireless service providers may be competing for cellularfPCS customers within the next couple of years, differentiators in cost, qual ity, service, and coverage will become critical to customer acceptance and use. Many of these issues are discussed in the papers included in this book.

Taschenbuch. Condizione: Neu. Neuware - The relationship between inputs and outputs of nitrogen in intensive grassland systems.- The response to nitrogen fertilizer from a cut perennial ryegrass (Lolium perenne L.) pasture in the Scottish uplands relative to efficiency of fertilizer use and provision of herbage for animals.- Efficient use of fertilizer nitrogen on grass swards: effects of timing, cutting management and secondary grasses.- Nitrogen supply and the persistence of grasses.- Sources and transformations of organic nitrogen in intensively managed grassland soils.- Gaseous losses of nitrogen from grassland.- Relationships between soil mineral nitrogen content and denitrification, following application of slurry and calcium nitrate to grassland.- Losses of nitrogen from intensive grassland systems by leaching and surface runoff.- Nitrate loss through leaching and surface runoff from grassland: effects of water supply, soil type and management.

Taschenbuch. Condizione: Neu. Neuware - This, the seventh volume in the New Clinical Applications Series, has an international flavour, with contributions from Australia (Mr N.e. Davis), Great Britain (Drs A.W. Macfarlane, N.C. Smith, M.F. Spittle, J.L.Verbov), and USA (Dr M.e. Finan and Professor R.K. Winkelmann). Dr Smith discusses some common skin tumours with his character istic informative clarity. It is appropriate that an authority such as Mr Davis should discuss a tumour that has a particularly high inci dence in his own country. Dr Spittle is a recognized authority on lymphomas and she writes succinctly on their management. Dr Finan and Professor Winkelmann have extensive experience of the rare condition, necrobiotic xanthogranuloma, and Drs Macfarlane and Verbov have been involved in the management of many patients with scleromyxoedema. I am very pleased to have had the opportunity of working with the contributors and thank them most sincerely for their efforts. I hope that this volume will interest dermatologists, oncologists, pathologists, radiotherapists and surgeons. JULIAN VERBOV ix ABOUT THE EDITOR Dr Julian Verbov is Consultant Dermatologist to Liverpool Health Authority and Clinical Lecturer in Dermatology at the University of Liverpool. He is a member of the British Association of Dermatologists, rep resenting the British Society for Paediatric Dermatology on its Executive Committee. He is a Committee Member of the North of England Dermatological Society, and Editor of its Proceedings.

Taschenbuch. Condizione: Neu. Neuware - International concern in scientific, industrial, and governmental communities over traces of xenobiotics in foods and in both abiotic and biotic environments has justified the present triumvirate of specialized publications in this field: com prehensive reviews, rapidly published research papers and progress reports, and archival documentations. These three international publications are integrated and scheduled to provide the coherency essential for nonduplicative and current progress in a field as dynamic and complex as environmental contamination and toxicology. This series is reserved exclusively for the diversified literature on 'toxic' chemicals in our food, our feeds, our homes, recreational and working surroundings, our domestic animals, our wildlife and ourselves. Tremendous efforts worldwide have been mobilized to evaluate the nature, presence, magni tude, fate, and toxicology of the chemicals loosed upon the earth. Among the sequelae of this broad new emphasis is an undeniable need for an articulated set of authoritative publications, where one can find the latest important world liter ature produced by these emerging areas of science together with documentation of pertinent ancillary legislation. Research directors and legislative or administrative advisers do not have the time to scan the escalating number of technical publications that may contain articles important to current responsibility. Rather, these individuals need the background provided by detailed reviews and the assurance that the latest infor mation is made available to them, all with minimal literature searching.

Taschenbuch. Condizione: Neu. Neuware - Global attention in scientific, industrial, and governmental communities to traces of toxic chemicals in foodstuffs and in both abiotic and biotic environ ments has justified the present triumvirate of specialized publications in this field: comprehensive reviews, rapidly published progress reports, and archival documentations. These three publications are integrated and scheduled to pro vide in international communication the coherency essential for nonduplicative and current progress in a field as dynamic and complex as environmental con tamination and toxicology. Until now there has been no journal or other publica tion series reserved exclusively for the diversified literature on 'toxic' chemicals in our foods, our feeds, our geographical surroundings, our domestic animals, our wildlife, and ourselves. Around the world immense efforts and many talents have been mobilized to technical and other evaluations of natures, locales, magnitudes, fates, and toxicology of the persisting residues of these chemicals loosed upon the world. Among the sequelae of this broad new emphasis has been an inescapable need for an articulated set of authoritative publications where one could expect to find the latest important world literature produced by this emerging area of science together with documentation of pertinent ancil lary legislation.

Taschenbuch. Condizione: Neu. Neuware - Reviews of Environmental Contamination and Toxicology contains timely review articles concerned with all aspects of chemical contaminants (including pesticides) in the total environment, including toxicological considerations and consequences. It attempts to provide concise, critical reviews of advances, philosophy, and significant areas of accomplished or needed endeavor in the total field of residues of these and other foreign chemicals in any segment of the environment, as well as toxicological implications.

Taschenbuch. Condizione: Neu. Neuware - Very large scale integration (VLSI) technologies are now maturing with a current emphasis toward submicron structures and sophisticated applications combining digital as well as analog circuits on a single chip. Abundant examples are found on today's advanced systems for telecom munications, robotics, automotive electronics, image processing, intelli gent sensors, etc . Exciting new applications are being unveiled in the field of neural computing where the massive use of analog/digital VLSI technologies will have a significant impact. To match such a fast technological trend towards single chip ana logi digital VLSI systems, researchers worldwide have long realized the vital need of producing advanced computer aided tools for designing both digital and analog circuits and systems for silicon integration. Ar chitecture and circuit compilation, device sizing and the layout genera tion are but a few familiar tasks on the world of digital integrated circuit design which can be efficiently accomplished by matured computer aided tools. In contrast, the art of tools for designing and producing analog or even analogi digital integrated circuits is quite primitive and still lack ing the industrial penetration and acceptance already achieved by digital counterparts. In fact, analog design is commonly perceived to be one of the most knowledge-intensive design tasks and analog circuits are still designed, largely by hand, by expert intimately familiar with nuances of the target application and integrated circuit fabrication process. The techniques needed to build good analog circuits seem to exist solely as expertise invested in individual designers.

Taschenbuch. Condizione: Neu. Neuware - 1 A Paean to the Follow-up.- I Follow-up Studies.- 2 Risks for Alcoholism by Age and Class among Males.- 3 Children of Alcoholic Fathers-A Longitudinal Prospective Study.- 4 The Longitudinal Course of Alcoholism among Women Criminals: A Six-Year Follow-up.- 5 Natural History of Male Alcoholism.- 6 Causal Models of Personality, Peer Culture Characteristics, Drug Use, and Criminal Behaviors over a Five-year Span.- II High-Risk Studies.- 7 Studies of Familial Alcoholism: A Growth Industry.- 8 A Danish Prospective Study of Young Males at High Risk for Alcoholism.- 9 A Prospective Study of Alcoholism: Electroencephalographic Findings.- 10 Prospective Markers for Alcoholism.- III Typological Studies.- 11 Subtyping Alcoholics by Coexisting Psychiatric Syndromes: Course, Family History, Outcome.- 12 Antisocial Behavior, Psychopathology, and Problem Drinking in the Natural History of Alcoholism.