Springer springer dez 2001 (454 risultati)

Taschenbuch. Condizione: Neu. Neuware -Like the movie 'Apollo 13' and the book on which it was based, Neptune: The Planets, Rings and Satellites tells the real story of the Voyager Mission to the outer planets from the point of view of the people who were there. It shows clearly the planning, excitement and major advances in our knowledge of Neptune and its system associated with the highly successful Voyager Mission and will remain a definitive description of Neptune for decades to come. 328 pp. Englisch. …

Buch. Condizione: Neu. Neuware - Dr. Leonard Swischuk, who is recognized for authoring several superb and widely read pediatric radiology textbooks, has produced yet another outstanding work on the important subject of imaging the cervical spine in children. A distinguished pediatric radiologist, he draws upon his extensive experience in the field and his gift for writing clear and readable text to provide practitioners with an insightful approach to pediatric cervical spine injuries. Those who work in trauma imaging will appreciate the wealth of practical guidelines contained in this thorough yet concise book.Dr. Swischuk's text is organized into six chapters. The first two discuss developmental anatomy and normal variants. Chapters three and four concentrate on congenital anomalies and on abnormalities of the dens. The final two chapters consider trauma and miscellaneous abnormalities of the cervical spine. The book has several notable strengths that are appealing to radiology residents, such as its succinct and well-organized overview of the topic. To help residents identify cases that they are likely to encounter during board exams and in practice, Dr. Swischuk selected excellent plain film examples from his personal collection that illustrate the conditions he discusses and reflect his emphasis on cervical radiography. The illustrated cases also include CT and MR images that clarify and qualify the plain film findings. Helpful reference lists complete each chapter and guide residents to resources for further reading. In addition, Dr. Swischuk's direct writing style makes the complex content highly accessible, providing imaging residents with an invaluable introduction to pediatric cervical spine radiology.…

Buch. Condizione: Neu. Neuware - A: Introduction: Life History & Ecology. 1. Life history strategies of marine mammals; P.G.H. Evans, I. Stirling. 2. How persistent are marine mammal habitants in an ocean of variability A. Bjørge. 3. Ecological aspects of reproduction of marine mammals; C. Lockyer. B: Sensory Systems and Behaviour. 4. Sound and cetaceans; J. Gordon, P. Tyack. 5. Behavioural ecology of cetaceans; J.R. Boran, et al. 6. New perspectives on the behavioural ecology of pinnipeds; H.L. Cappozzo. C: Survey and Study Techniques. 7. Assessment of marine mammal population size and status; P.S. Hammond. 8. Acoustic techniques for studying cetaceans; J. Gordon, P. Tyack. 9. Applications of molecular data in cetacean taxonomy and population genetics with special emphasis on defining species boundaries in cetaceans; M.C. Milinkovitch, et al. D: Health, Parasites and Pathogens. 10. Marine mammal health: Holding the balance in an everchanging sea; J.R. Geraci, V. Lounsbury. 11. Living together: the parasites of marine mammals; F.J. Aznar, et al. 12. Marine Mammal mass mortalities; M. Domingo, et al. E: Conservation & Management. 13. Interactions between aquatic mammals and humans in the context of ecosystem management; E.A. Crespo, M. Hall. 14. Environmentalists, fishermen, cetaceans and fish: Is there a balance and can science help to find it M. Hall, G.P. Donovan. 15. Organohalogenated contaminants in marine mammals; A.J. Hall. 16. Cetaceans andhumans: influences of noise; B. Würsig, P.G.H. Evans. Systematic List of Marine Mammals. Index. …

Buch. Condizione: Neu. Neuware - People constantly talk to each other about experience or knowledge resulting from spatial perception; they describe the size, shape, orientation and position of objects using a wide range of spatial expressions. The semantic treatment of such expressions presents particular challenges for natural language processing. The meaning representation used must be capable of distinguishing between fine-grained sense differences and ambiguities grounded in our experience and perceptual structure. While there have been many different approaches to the representation and processing of spatial expressions, most computational characterisations have been restricted to particularly narrow problem domains. The chapters in the present volume reflect a commitment to the development of cognitively informed computational treatments of spatial language and spatial representation. Therefore the chapters present computational work, empirical work, or a combination of both. The book will appeal to all those interested in spatial language and spatial representation, whether they work in artificial intelligence, cognitive science, cognitive psychology or linguistics.…

Buch. Condizione: Neu. Neuware - This series will include monographs and collections of studies devoted to the investigation and exploration of knowledge, information, and data-processing systems of all kinds, no matter whether human, (other) animal, or machine. Its scope is intended to span the full range of interests from classical problems in the philosophy of mind and philosophical psychology through issues in cognitive psychology and sociobiology (concerning the mental capabilities of other species) to ideas related to artificial intelligence and to computer science. While primary emphasis will be placed upon theoretical, conceptual, and epistemological aspects of these problems and domains, empirical, experimental, and methodological studies will also appear from time to time. Few areas of inquiry have generated as much interest and enthusiasm in recent times as has the discipline known as 'evolutionary psychology', but its pretentions and its accomlishments have not always been properly understood. This collection brings together important work in psychology, anthropology, and the philosophy of science that contributes toward that goal, especially by emphasizing the role of natural selection and sexual selection as crucial factors in the evolution of cognitive mechanisms for information processing. The methodological studies that are presented here are bound to enhance appreciation for the scope and limits of this fascinating domain. The editor has produced a fascinating volume that should appeal to a broad and diverse audience.…

Taschenbuch. Condizione: Neu. Neuware - This title relates experiences at the Baltimore Veterans Administration Medical Center (VAMC), the first site to have a fully operational filmless radiology system. Included are sections on PACS' impact on the practice of radiology and the delivery of health care (e.g. teleradiology), clinical uses of computed radiography, technological issues, and case studies from both inside and outside the VA system.…

Buch. Condizione: Neu. Neuware - Measurement of Cardiac Deformations from MRI: Physical and Mathematical Models describes the latest imaging and imag analysis techniques that have been developed at leading centers for the visualization, analysis, and understanding of normal and abnormal cardiac motion with magnetic resonance imaging (MRI). The use of MRI in measuring cardiac motion is particularly important because MRI is non-invasive, and it is the only modality capable of imaging detailed intramural motion within the myocardium. Biomedical engineers, medical physicists, computer scientists, and physicians interested in learning about the latest advances in cardiovascular MRI should find this book to be a valuable educational resource. In particular, it is more tutorial in nature than most of the technical papers where the research was originally published. Practitioners and researchers working in the field of cardiovascular MRI will find the book to be filled with practical technical details and references to other work, enabling the implementation of existing methods and serving as a basis for further research in the area.…

Taschenbuch. Condizione: Neu. Neuware - Even if in the last years more information on sepsis and new treatments has become available, mortality rate is however high. In fact, the complexity of the several biohumoral factors involved in this process is difficult to understand. Another major problem is the consequent organ failure, which grows in a sequential way and in relation with the lesion gravity and the functional reserves of the patient. The volume presents the most recent results of research in this field.…

Buch. Condizione: Neu. Neuware - Medical imaging is an important topic which is generally recognised as key to better diagnosis and patient care. It has experienced an explosive growth over the last few years due to imaging modalities such as X-rays, computed tomography (CT), magnetic resonance (MR) imaging, and ultrasound. This book focuses primarily on state-of-the-art model-based segmentation techniques which are applied to cardiac, brain, breast and microscopic cancer cell imaging. It includes contributions from authors based in both industry and academia and presents a host of new material including algorithms for: - brain segmentation applied to MR; - neuro-application using MR; - parametric and geometric deformable models for brain segmentation; - left ventricle segmentation and analysis using least squares and constrained least squares models for cardiac X-rays; - left ventricle analysis in echocardioangiograms; - breast lesion detection in digital mammograms; - detection of cells in cell images. As an o verview of the latest techniques, this book will be of particular interest to students and researchers in medical engineering, image processing, computer graphics, mathematical modelling and data analysis. It will also be of interest to researchers in the fields of mammography, cardiology, pathology and neurology. …

Buch. Condizione: Neu. Neuware - This book is a collection of papers written by outstanding researchers in the newly emerging field of computational semantics. Computational semantics is concerned with the computation of the meanings of linguistic objects such as text fragments, spoken dialogue utterances, and e-mail messages. The meaning of such an object is determined partly by linguistic information and partly by information from the context in which the object occurs. The information from these sources is combined by processes that infer which interpretation of the object applies in the given context. This applies not only to notoriously difficult aspects of interpreting linguistic objects, such as indexicals, anaphora, and metonymy, but also to establishing the precise reference of common nouns and the scopes of noun phrases. The central issue in computational semantics is how processes of finding and combining the relevant linguistic and contextual information into contextually appropriate meanings can be organised. Traditional approaches of applying context information to disambiguated natural language expressions do not work well, due to the massive ambiguity in natural language. Recent work in computational semantics suggests, alternatively, to represent linguistic semantic information in formal structures with underspecification, and to apply context information in inference processes that result in further specification of these representations. Underspecified representation and inference are therefore the key topics in this book. The book is aimed at those linguists, computer scientists, and logicians who take an interest in the computation of meaning, and who want to know what is happening in this exciting field of research.…

Buch. Condizione: Neu. Neuware - Gary S. Dunbar 'Pro-fesh-yon-al-i-zay-shun . . . pro-fesh-yon-al-i-ZAY-shunl . . . I do not think I like that word . . . I am quite certain I do not like that wordl,' said A. F. Martin of Oxford University in 1980 when I mentioned to him that I was making a study of the professionalization of geography in Europe and North America from about 1870 to 1930. I should not have been surprised by his reply, because Mr. Martin, a highly regarded lecturer, tutor, and university man, was in some ways a typical example of his generation of British geographers, in that he did not have an advanced degree and his publication record was meager. Except for a single remarkable essay (Martin 1951), he was not well known in the field of geography, at least not outside the United Kingdom. Was he, then, a professional geographer Yes, indeed, because he was a full-time scholar in a distinguished university, even though he lacked the sort of credentials that have been demanded of subsequent generations of scholars, at Oxford and elsewhere. I certainly do not mean to denigrate Martin or his ilk; I am simply using this anecdote to launch a book on the emergence of modern geography.…

Buch. Condizione: Neu. Neuware - During several decades of this century, the classical physiological studies on the cardiovascular system have greatly improved our knowledge on the function of this system under normal and pathological conditions. This knowledge was the basis of the breakthrough for diagnostic techniques like the Swan-Ganz catheter, coronary arteriography, left and right heart biopsies, and invasive measurements of contractility, as well as therapeutic tools including aortocoronary bypass surgery, percutanous transluminal coronary angioplasty, and a broad field of pharmacological interventions for the whole spectrum of cardiovascular diseases, especially chronic heart failure. It was during the last decade that the scientific world focused on the evolution of molecular biology of the cardiovascular system so that cardiovascular physiology seemed to become less important. Regarding the myocardium, molecular alterations of important functional proteins (phenotype changes), as well as signal transduction pathways of contractility and cardiac growth have been elucidated. The functional importance of a number of genes has undoubtedly been proven with the help of transgenic animals. Mechanics and Energetics of the Myocardium provides an overview for those researchers and practioners interested in the broad field of molecular biology and physiology of the cardiovascular system.…

Buch. Condizione: Neu. Neuware - The emergence of new firm-level data, including the European Community Innovation Survey (CIS), has led to a surge of studies on innovation and firm behaviour. This book documents progress in four interrelated fields: investigation of the use of new indicators of innovation output investigation of determinants of innovative behaviour the role of spillovers, the public knowledge infrastructure and research and development collaboration The impact of innovation on firm performance Written by an international group of contributors, the studies are based on agriculture and the manufacturing and service industries in Europe and Canada and provide new insights into the driving forces behind innovation.…

Buch. Condizione: Neu. Neuware - MORAL RESPONSIBILITY AND THE HUMAN GENOME PROJECT The Human Genome Project (HGP) is now almost completed. A draft of the full DNA sequence of the human genome has recently been published (lnt. Hum. Gen. Seq. Cons., 2001; Venter et al., 2001). The project started in 1990 and was planned to be completed fifteen years later. lt is now clearly ahead of schedule. But even when the project is completed much work remains-the analysis of the function of the 30-40,000 genes in the human genome is beyond the scope of the project and willlast for decades. However, even before the HGP started, it was rather controversial from an ethical point of view; not so much because of the sequencing work as such, but because of its anticipated consequences. The results of the project might be used, for example, in developing genetic tests, genetically tailor-made drugs, and gene therapies. Some people fear that genetic testing may lead to discrimination in insurance and at the workplace. Some view the pharmaceutical companies' research on genetically tailor-made drugs as an unacceptable commercialization of science. Some anticipate that the development of gene therapy will give rise to a society in which parents want to design perfect babies with genetic enhancement techniques.…

Buch. Condizione: Neu. Neuware - Flux quantization experiments indicate that the carriers, Cooper pairs (pairons), in the supercurrent have charge magnitude 2e, and that they move independently. Josephson interference in a Superconducting Quantum Int- ference Device (SQUID) shows that the centers of masses (CM) of pairons move as bosons with a linear dispersion relation. Based on this evidence we develop a theory of superconductivity in conventional and mate- als from a unified point of view. Following Bardeen, Cooper and Schrieffer (BCS) we regard the phonon exchange attraction as the cause of superc- ductivity. For cuprate superconductors, however, we take account of both optical- and acoustic-phonon exchange. BCS started with a Hamiltonian containing 'electron' and 'hole' kinetic energies and a pairing interaction with the phonon variables eliminated. These 'electrons' and 'holes' were introduced formally in terms of a free-electron model, which we consider unsatisfactory. We define 'electrons' and 'holes' in terms of the cur- tures of the Fermi surface. 'Electrons' (1) and 'holes' (2) are different and so they are assigned with different effective masses: Blatt, Schafroth and Butler proposed to explain superconductivity in terms of a Bose-Einstein Condensation (BEC) of electron pairs, each having mass M and a size. The system of free massive bosons, having a quadratic dispersion relation: and moving in three dimensions (3D) undergoes a BEC transition at where is the pair density.…

Buch. Condizione: Neu. Neuware - Land use change is driven by a variety of forces, including spatial policies formulated at supra-national, national, regional and local levels. The main focus of this book is to contextualise, explain and illustrate a new methodology for simulating land use change in different parts of Europe. It considers some of the more important causal factors and identifies state-of-the-art approaches to modelling human and environmental systems, and for evaluating and visualising altenative scenarios. The last part of the volume presents material from two case studies, one from The Netherlands and one from Portugal, of the implementation of a new simulation model called EuroScanner. Audience: This work will be of interest to researchers and practioners whose work involves geography, simulation and modelling, environmental planning, spatial decision making, the methodology of social sciences, and economics.…

Buch. Condizione: Neu. Neuware -Medical imaging is an important topic which is generally recognised as key to better diagnosis and patient care. It has experienced an explosive growth over the last few years due to imaging modalities such as X-rays, computed tomography (CT), magnetic resonance (MR) imaging, and ultrasound.This book focuses primarily on state-of-the-art model-based segmentation techniques which are applied to cardiac, brain, breast and microscopic cancer cell imaging. It includes contributions from authors based in both industry and academia and presents a host of new material including algorithms for:- brain segmentation applied to MR;- neuro-application using MR; - parametric and geometric deformable models for brain segmentation;- left ventricle segmentation and analysis using least squares and constrained least squares models for cardiac X-rays; - left ventricle analysis in echocardioangiograms;- breast lesion detection in digital mammograms;detection of cells in cell images.As an overview of the latest techniques, this book will be of particular interest to students and researchers in medical engineering, image processing, computer graphics, mathematical modelling and data analysis. It will also be of interest to researchers in the fields of mammography, cardiology, pathology and neurology. …

Buch. Condizione: Neu. Neuware -Medical imaging is an important topic which is generally recognised as key to better diagnosis and patient care. It has experienced an explosive growth over the last few years due to imaging modalities such as X-rays, computed tomography (CT), magnetic resonance (MR) imaging, and ultrasound.This book focuses primarily on state-of-the-art model-based segmentation techniques which are applied to cardiac, brain, breast and microscopic cancer cell imaging. It includes contributions from authors based in both industry and academia and presents a host of new material including algorithms for: brain segmentation applied to MR; neuro-application using MR; parametric and geometric deformable models for brain segmentation; left ventricle segmentation and analysis using least squares and constrained least squares models for cardiac X-rays; left ventricle analysis in echocardioangiograms; breast lesion detection in digital mammograms;detection of cells in cell images.As an overview of the latest techniques, this book will be of particular interest to students and researchers in medical engineering, image processing, computer graphics, mathematical modelling and data analysis. It will also be of interest to researchers in the fields of mammography, cardiology, pathology and neurology. 668 pp. Englisch. …

Buch. Condizione: Neu. Neuware - In the 1990s the world community has arrived at a particularly in developing countries and in econo historical turning point. Global issues- the decline mies in transition. These three organizations have of biological diversity, climate change, the fate of different backgrounds and focuses, but have found forest peoples, fresh water scarcity, desertification, it relevant and rewarding to their core operations to deforestation and forest degradation - have come collaborate in WFSE activities. The intention of to dominate the public and political debate about these organizations is to continue supporting the forestry. In the economic sphere, forest industries WFSE research and developing the mutual collab have assumed global dimensions. oration. The World Forests, Society and Environment In the year 2000,WFSE took on anewchallenge, Research Program (WFSE) is a response by the re extending its research network to involve five new searchcommunity to thisglobalization. The WFSE Associate Partners: the Center for International slogan 'Globalization calls for global research' re Forestry Research (CIFOR) in Indonesia;the Cent flects both the means and the end of the program. er for Research and Higher Education on Natural The program is involved in promoting and execut Resources of Tropical America (CATIE) in Costa ing research in different parts of the world, and Rica; the International Centerfor Research inAgro through its publications and communications net Forestry (ICRAF) in Kenya; the World Forestry work, linking researchers worldwide.…

Buch. Condizione: Neu. Neuware -Medical imaging is an important topic which is generally recognised as key to better diagnosis and patient care. It has experienced an explosive growth over the last few years due to imaging modalities such as X-rays, computed tomography (CT), magnetic resonance (MR) imaging, and ultrasound.This book focuses primarily on state-of-the-art model-based segmentation techniques which are applied to cardiac, brain, breast and microscopic cancer cell imaging. It includes contributions from authors based in both industry and academia and presents a host of new material including algorithms for:- brain segmentation applied to MR;- neuro-application using MR; - parametric and geometric deformable models for brain segmentation;- left ventricle segmentation and analysis using least squares and constrained least squares models for cardiac X-rays; - left ventricle analysis in echocardioangiograms;- breast lesion detection in digital mammograms;detection of cells in cell images.As an overview of the latest techniques, this book will be of particular interest to students and researchers in medical engineering, image processing, computer graphics, mathematical modelling and data analysis. It will also be of interest to researchers in the fields of mammography, cardiology, pathology and neurology. 668 pp. Englisch. …

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -of of classes of finite Properties products conjugacy groups 4r6radoldbrancf, This of finite was studied in the 1980's. The group theory. topic intensively book 'Products of Classes in edited Z. Arad and [22] Conjugacy Groups,' by M. a of the results obtained this Herzog, gives comprehensive picture during period. It realized several authors that this research could be extended to was by of irreducible characters. Werefer the reader to the products papers [1, 2, 11, 13-16,21,23,35,40,51,52,651. In several of these the authors found an between analogy pr- papers of classes and of irreducible characters which led to ucts conjugacy products of table introduced H.L.Blau and Z. Arad in in the notion algebra, by [7], in uniform the of of order to a decomposition products study way conjugacy and irreducible characters of finite Since the classes groups. then, theory in of Z. - of table was H. algebras extensively developed papers Arad, F. D. M.R. E. H. J. isha, Blau, B-dnger, Chillag, Darafsheh, Erez, Fisman, V. M. A. C. and B. Xu Miloslavsky, Muzychuk, Rahnamai, Scopolla [3-5,7- 10,12,17-20,25,29-33,35,41]. Table as be onsidered a class of defined, c special algbras, may C-algbras Y. Kawada and G. Hoheisel table introduced a by [49] [48].:More precisely, where the is a structure constants are Each algebra C-algebra nonnegative. finite two natural table the table of yields algebras: algebra conjugacy group classes and the table of characters. 140 pp. Englisch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book asks three fundamental questions about the socialist experiment in twentieth-century Russia: How did Marxist ideas come to be implemented in Russia, a country entirely unsuited to them Why did the experiment lead to such suffering and upheaval and prove so fruitless And why did the attempt to return to a proper Marxism/Leninism bring about the rapid collapse of the experiment. In its answers, this book pays special attention to the shadow cast by Lenin throughout the entire Soviet era. 287 pp. Englisch.…

Buch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book is a synopsis of modern deep-field astronomy, based on the powerful telescopes and instruments developed in recent years. It is organized along topical themes, such as the extragalactic background radiation at different wavelengths, the evolution of galaxies, the history of star formation, the nature of absorbers, the reionization of the intergalactic medium, the validity of photometric redshifts, gravitational lensing, and clustering of galaxies. Stellar and substellar objects were not neglected, however, and one session was devoted to nearby bodies such as trans-Neptunian solar system objects, brown dwarfs, and stars with special characteristics. 408 pp. Englisch.…

Buch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Sophus Lie (1842-1899) is one of Norways greatest scientific talents. His mathematical works have made him famous around the world no less than Niels Henrik Abel. The terms 'Lie groups' and 'Lie algebra' are part of the standard mathematical vocabulary. In his comprehensive biography the author Arild Stubhaug introduces us to both the person Sophus Lie and his time. We follow him through: childhood at the vicarage in Nordfjordeid; his youthful years in Moss; education in Christiania; travels in Europe; and learn about his contacts with the leading mathematicians of his time. 572 pp. Englisch.…

Buch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book examines the viability of non-provocative defence - the controversial idea that defensive military policies and practices reduce the risk of wars and provide a viable basis for defending a society should war break out. Drawing on case studies from Europe, the 1991 Persian Gulf War, and Asia-Pacific, the author concludes that non-provocative defence concepts remain relevant and that they can help in deterring, conducting, and settling wars. 293 pp. Englisch.…

Buch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -For over one hundred and fifty years, since its founding in 1843, Macmillan has been at the heart of British publishing. This collection of essays, representing recent research in the archives at the British library, examines the firms' astute business strategy during the nineteenth century, its successful expansion into overseas markets in America and India, its complex and intriguing relations with authors such as Matthew Arnold, Thomas Hardy, Alfred Lord Tennyson, W.B.Yeats, and J.M.Keynes, with additional chapters on Macmillan Magazine and the work of a modern children's editor. 273 pp. Englisch.…

Buch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book critically examines the realities of liberal democracy; its elitism and non-accountability; and its inequalities and injustices. Participatory systems and movements, whether in Athens, seventeenth and nineteenth century England, or South Africa 1970-1990, are more effective in satisfying the democratic aspirations of the people and in curtailing ambitious elites, than what is passed off now as 'democracy'. By interrogating contemporary democratic regimes, in the United States, and in Botswana and South Africa, the severe limitations and constraints inherent in liberal democracy are highlighted. The need for a clear evaluation of what constituted democracy emerges as a powerful message of Kenneth Good's argument. 256 pp. Englisch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The tenth Portuguese Conference on Arti cial Intelligence, EPIA 2001 was held in Porto and continued the tradition of previous conferences in the series. It returned to the city in which the rst conference took place, about 15 years ago. The conference was organized, as usual, under the auspices of the Portuguese Association for Arti cial Intelligence (APPIA, EPIA maintained its international character and continued to provide a forum for p- senting and discussing researc h on di erent aspects of Arti cial Intelligence. To promote motivated discussions among participants, this conference streng- ened the role of the thematic workshops. These were not just satellite events, but rather formed an integral part of the conference, with joint sessions when justi ed. This had the advantage that the work was presented to a motivated audience. This was the rst time that EPIA embarked on this experience and so provided us with additional challenges. 436 pp. Englisch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Themultiset (a set with multiplicities associated with its elements, in the form of natural numbers) is a notion which has appeared again and again in many areas of mathematics and computer science, sometimes called abag (some h- torical information appears in the enclosed paper by A. Syropoulos). As a data structure, this notion stands in-between strings/lists, where a linear ordering of symbols/items is present, andsets, where no ordering and no multiplicity is considered;inamultiset,onlythemultiplicityofelementsmatters,nottheir ordering. Actually, in between lists and multisets we also havepomsets, partially ordered multisets. Con ning ourselves to computer science, we may mention many areas where multisets are used: formal power series, Petri nets, data bases, logics, formal language theory (in relation with Parikh mapping, commutative grammars, etc), concurrency, and so on. In the last few years, the notion has occurred in a rather natural way in the molecular computing area. An aqueous solution of chemical compounds, swimming together in a given space, without any given spatial relation between individual elements, is just a multiset. Actually, this chemical metaphor was used several years before the occurrence of what is now called molecular computing, as the basic ingredient of the Gamma language and the Chemical Abstract Machine (a comprehensive survey of these ideas is provided by J. -P. Ban atre, P. Fradet, D. Le Metayer). 372 pp. Englisch. …

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -MessagefromtheGeneralCo-Chairs It is our pleasure to welcome you to the Eighth International Conference on High Performance Computing and to Hyderabad, a leading center for Infor- tionTechnologyinIndia.Thismessagepaystributetomanyvolunteerswho made this meeting possible. We are indebted to Professor Burkhard Monien for his superb e orts as p- gramchairinorganizinganexcellenttechnicalprogram.Wewouldliketothank the vice chairs, Guang Gao, Allan Gottlieb, Bruce Maggs, Cauligi Raghavendra, and Horst Simon, for their e orts in putting together a strong program comm- tee, who in turn reviewed the submissions and composed an excellent technical program.WewouldliketothankCauligiRaghavendraforhise ortsinorga- zing the invited session on networks. Many volunteers have been associated with HiPC over the years, and they have continued their excellent service in organizing the meeting: Vipin Kumar invited the keynote speakers and coordinated the keynotes, Sartaj Sahni handled the poster/presentation session, Sandhya Dwarkadas and Tulika Mitra handled - blicity, Nalini Venkatasubramanian and her assistant Mario Espinoza interfaced with the authors and Springer-Verlag in bringing out these proceedings, Manav Misra put together the tutorials, Ajay Gupta did a ne job in handling inter- tional nancial matters, Dheeraj Sanghi administered scholarships for students from Indian academia, Sudheendra Hangal handled the exhibits with inputs from R.Govindarajan,SajalDasactedasvicegeneralchair,C.P.Ravikumarand Vinod Sanjay, though not listed in the announcements, managed publicity w- hin India. We would like to thank all of them for their time and e orts. OurspecialthanksgotoA.K.P.Nambiarforhiscontinuede ortsinhandling nancial matters as well as coordinating the activities within India. 464 pp. Englisch. …