springer springer apr 1997 (313 risultati)

Taschenbuch. Condizione: Neu. Neuware -This monograph is concerned with the Shimura variety attached to a quaternion algebra over a totally real number field. For any place of good (or moderately bad) reduction, the corresponding (semi-simple) local zeta function is expressed in terms of (semi-simple) local L-functions attached to automorphic representations. In an appendix a conjecture of Langlands and Rapoport on the reduction of a Shimura variety in a very general case is restated in a slightly stronger form. The reader is expected to be familiar with the basic concepts of algebraic geometry, algebraic number theory and the theory of automorphic representation. 164 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -Clifton Fadiman's classic collection of mathematical stories, essays and anecdotes is now back in print. Ranging from the poignant to the comical to the surreal, these selections include writing by Aldous Huxley, Martin Gardner, H.G. Wells, George Gamow, G.H. Hardy, Robert Heinlein, Arthur C. Clarke, and many others. Humorous, mysterious, and always entertaining, this collection will please mathematicians and non-mathematicians alike.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 324 pp. Englisch.

Buch. Condizione: Neu. Neuware -E. KONTIZAS Astronomical Institute National Observatory of Athens P. O. Box 20048 Athens GR-1181O GREECE The international conference on 'Wide-Field Spectroscopy' and its sub ject matter were agreed during the general assembly of the International Astronomical Union (IAU) in August 1994 by the Working Group of Com mision 9 'Wi de-Field Imaging'. This meeting gave an opportunity to world experts on this subject to gather in Athens, in order to discuss the cur rent exploitation and the impending opportunities that exist in the area of multi-object spectroscopy, with particular emphasis on: 1. Astronomical instruments, data acquisition, processing and analysis techniques. 2. Astrophysical problems best tackled through wide-field, multi-object spectroscopy. The new fibre optic technology offers an important tool for the advancement of basic research and the development of industrial applications. Astronom ical spectroscopy is a field of astronomy which has contributed much to the advancement of fundamental physics. The spectra of hot stars have been used to determine the well-known Balmer formula for the wavelength of hydrogen lines, in the late 19th century. Since then, spectroscopy has made enormous progress in stellar atmosphere studies, in kinematics, and in the detection of high redshifts in the Universe. The traditional techniques of obtaining wide-field spectroscopic data are based on slitless spectroscopy (objective prism). Several observations, world wide, make use ofthese tech niques in order to obtain information on the spectral properties of objects in large areas of the sky. 436 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -I ntrod uction or some time 32-bit machines have been a hot topic in the world F ofPCs. It seems that more powerful operating systems will soon be displacing DOS. Meanwhile, at least in the professional literature, lively discussion has been raging about what the future standard will be. Two alternatives seem to be emerging for the domain of server operating systems: Windows NT, and UNIX variants such as UNIX VS. Windows NT Solaris 2, UnixWare, and NextStep 486. In this context OS/2 plays no significant role since it is seen more as a competitor to Windows in its current version and future 32-bit versions. We cannot yet predict which system will finally predominate. However, the significant rise in the power of hardware in recent years has unleashed the demand for a modern operating system that makes use of these developments. Under a modern server operating system, the borderline between classical UNIX workstations and high-end workstations PCs will tend to become more fluid. 1.1 Historical perspectives on Linux An extremely powerful alternative to the above proprietary systems has evolved far from all the big debates on strategy. The system is Linux, a UNIX system for Intel processors that is available for free.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 240 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -In the last few years there has been a growing interest in the development of numerical techniques appropriate for the approximation of differential model problems presenting multiscale solutions. This is the case, for instance, with functions displaying a smooth behavior, except in certain regions where sudden and sharp variations are localized. Typical examples are internal or boundary layers. When the number of degrees of freedom in the discretization process is not sufficient to ensure a fine resolution of the layers, some stabilization procedures are needed to avoid unpleasant oscillatory effects, without adding too much artificial viscosity to the scheme. In the field of finite elements, the streamline diffusion method, the Galerkin least-squares method, the bub ble function approach, and other recent similar techniques provide excellent treatments of transport equations of elliptic type with small diffusive terms, referred to in fluid dynamics as advection-diffusion (or convection-diffusion) equations. Goals This book is an attempt to guide the reader in the construction of a computa tional code based on the spectral collocation method, using algebraic polyno mials. The main topic is the approximation of elliptic type boundary-value par tial differential equations in 2-D, with special attention to transport-diffusion equations, where the second-order diffusive terms are strongly dominated by the first-order advective terms. Applications will be considered especially in the case where nonlinear systems of partial differential equations can be re duced to a sequence of transport-diffusion equations.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 228 pp. Englisch.

Buch. Condizione: Neu. Neuware -In essence, this text is written as a challenge to others, to discover significant uses for Cayley number algebra in physics. I freely admit that though the reading of some sections would benefit from previous experience of certain topics in physics - particularly relativity and electromagnetism - generally the mathematics is not sophisticated. In fact, the mathematically sophisticated reader, may well find that in many places, the rather deliberate progress too slow for their liking. This text had its origin in a 90-minute lecture on complex numbers given by the author to prospective university students in 1994. In my attempt to develop a novel approach to the subject matter I looked at complex numbers from an entirely geometric perspective and, no doubt in line with innumerable other mathematicians, re-traced steps first taken by Hamilton and others in the early years of the nineteenth century. I even enquired into the possibility of using an alternative multiplication rule for complex numbers (in which argzlz2 = argzl- argz2) other than the one which is normally accepted (argzlz2 = argzl + argz2). Of course, my alternative was rejected because it didn't lead to a 'product' which had properties that we now accept as fundamental (i. e. 256 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -Mechanical engineering, an engineering discipline born of the needs of the industrial revolution, is once again asked to do its substantial share in the call for industrial renewal. The general call is urgent as we face profound issues of productivity and competitiveness that require engineering solutions, among oth ers. The Mechanical Engineering Series features graduate texts and research monographs, intended to address the need for information in contemporary areas of mechanical engineering. The series is conceived as a comprehensive one the will cover a broad range of concentrations important to mechanical engineering graduate education and research. We are fortunate to have a distinguished roster of consulting editors, each an expert in one of the areas of concentration. The names of the consulting editors are listed on the first page of the volume. The areas of concentration are applied mechanics, biomechanics, computational mechanics, dynamic systems and control, energetics, mechanics of materials, processing, thermal science, and tribology. Professor Winer, the consulting editor for applied mechanics and tribology, and I are pleased to present this volume of the series: High Sensitivity Moire: Experimental Analysis for Mechanics and Materials by Professor Post, Dr. Han and Dr. Ifju. The selection of this volume underscores again the interest of the Mechanical Engineering Series to provide our readers with topical monographs as well as graduate texts.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 468 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -Massively parallel processing is currently the most promising answer to the quest for increased computer performance. This has resulted in the development of new programming languages and programming environments and has stimulated the design and production of massively parallel supercomputers. The efficiency of concurrent computation and input/output essentially depends on the proper utilization of specific architectural features of the underlying hardware. This book focuses on development of runtime systems supporting execution of parallel code and on supercompilers automatically parallelizing code written in a sequential language. Fortran has been chosen for the presentation of the material because of its dominant role in high-performance programming for scientific and engineering applications.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 308 pp. Englisch.

Buch. Condizione: Neu. Neuware -George Boole (1815-1864) is well known to mathematicians for his research and textbooks on the calculus, but his name has spread world-wide for his innovations in symbolic logic and the development and applications made since his day. The utility of 'Boolean algebra' in computing has greatly increased curiosity in the nature and extent of his achievements. His work is most accessible in his two books on logic, 'A mathematical analysis of logic' (1947) and 'An investigation of the laws of thought' (1954). But at various times he wrote manuscript essays, especially after the publication of the second book; several were intended for a non-technical work, 'The Philosophy of logic', which he was not able to complete. This volume contains an edited selection which not only relates them to Boole's publications and the historical context of his time, but also describes their strange history of family, followers and scholars have treid to confect an edition. The book will appeal to logicians, mathematicians and philosophers, and those interested in the histories of the corresponding subjects; and also students of the early Victorian Britain in which they were written.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 308 pp. Englisch.

Buch. Condizione: Neu. Neuware -IAU Transactions are published as a volume corresponding to each General Assembly. Volume A is produced prior to the Assembly and contains Reports on Astronomy, prepared by each Commission President. The intention is to summarize the astronomical results that have affected the work of the Commission since the production of the previous Reports up to a time which is about one year prior to the General Assembly. Volume B is produced after the Assembly and contains accounts of Commission Meetings which were held, together with other material. The reports included in the present volume range from outline summaries to lengthy compilations and references. Most reports are in English.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 616 pp. Englisch.

Buch. Condizione: Neu. Neuware -Californium-252 is a neutron emitter with a high specific activity, making it useful in a variety of applications, the most spectacular of which is in brachytherapy for cancer patients. Radiation oncology has exhausted nearly every option for treating radioresistant tumors by photon brachytherapy, and therefore new types of radiation need to be studied to improve the curability of cancer.Audience: Californium brachytherapy is used in only a few radiation therapy centers in the world, so the book will be highly instructive for radiation oncologists, medical physicists and radiobiologists. The nuclear techniques used in clinical applications may also interest nuclear physicists and engineers. 328 pp. Englisch.

Buch. Condizione: Neu. Neuware -The Relativists and Cosmologists in India organized an international conference in Goa, India, in 1987, known as the International Conference on Gravitation and Cosmology (ICGC-87). Encouraged by the success of this conference it was decided to have such a meeting periodically, once in every four years. Accordingly, ICGC- 91 was held at the Physical Research Laboratory (PRL), Ahmedabad, India. The third International Conference on Gravitation and Cosmology, (ICGC-95) was held at the Inter-University centre for Astronomy and Astrophysics, IUCAA, Pune, India during December 13 - 19, 1995. This series of conferences is co-sponsored by the Indian Association for General Relativity and Gravitation (lAGRG). The Conference had 16 plenary lectures and five workshops altogether. There were three plenary lectures per day and two workshops running parallel each day. We were fortunate in getting plenary speakers who are leading experts in their respective fields drawn from all over the world. The conference was attended by about 105 persons from India and 55 from abroad. We thank all the contributors who have taken time to write up their lectures amidst their busy schedule. We regret we could not get the contributions of a few plenary speakers. We would also like to thank the members of Organizing Committees who have worked hard to make this conference a success.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 316 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware - In this study Peter Burke distances himself from the traditional interpretation of the Renaissance as essentially Italian, self-consciously modern and easily separable from the Middle Ages. He emphasises the survival of medieval traditions and the process of the creative adaptation of classical forms and values to their new cultural and social contexts in Italy and elsewhere in Europe. The story is carried down to the seventeenth century and the diffusion and disintegration of what had once been a coherent movement. Illustrated with black and white plates, this edition has been updated throughout to take account of recent scholarship, has a fully revised bibliography and will provide the student with a stimulating introduction to the subject.

Taschenbuch. Condizione: Neu. Neuware - I ntrod uction or some time 32-bit machines have been a hot topic in the world F ofPCs. It seems that more powerful operating systems will soon be displacing DOS. Meanwhile, at least in the professional literature, lively discussion has been raging about what the future standard will be. Two alternatives seem to be emerging for the domain of server operating systems: Windows NT, and UNIX variants such as UNIX VS. Windows NT Solaris 2, UnixWare, and NextStep 486. In this context OS/2 plays no significant role since it is seen more as a competitor to Windows in its current version and future 32-bit versions. We cannot yet predict which system will finally predominate. However, the significant rise in the power of hardware in recent years has unleashed the demand for a modern operating system that makes use of these developments. Under a modern server operating system, the borderline between classical UNIX workstations and high-end workstations PCs will tend to become more fluid. 1.1 Historical perspectives on Linux An extremely powerful alternative to the above proprietary systems has evolved far from all the big debates on strategy. The system is Linux, a UNIX system for Intel processors that is available for free.

Taschenbuch. Condizione: Neu. Neuware - This book explores the long-term reasons for the demise of Imperial Russia, examining the failure of the autocratic state to strengthen its own political position while economic change transformed Russian society. It seeks to explain its debilitating internal tensions and to link these to the pressures exerted by Russia's repeated failure in war and by the empire's continuing expansion. Lastly, it analyzes what led to Russia being governed, only eight months after the collapse of Tsarism, by the Bolsheviks' revolutionary regime.

Taschenbuch. Condizione: Neu. Neuware -Inductive Logic Programming is a young and rapidly growing field combining machine learning and logic programming. This self-contained tutorial is the first theoretical introduction to ILP; it provides the reader with a rigorous and sufficiently broad basis for future research in the area.In the first part, a thorough treatment of first-order logic, resolution-based theorem proving, and logic programming is given. The second part introduces the main concepts of ILP and systematically develops the most important results on model inference, inverse resolution, unfolding, refinement operators, least generalizations, and ways to deal with background knowledge. Furthermore, the authors give an overview of PAC learning results in ILP and of some of the most relevant implemented systems.Springer-Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 428 pp. Englisch.

Buch. Condizione: Neu. Neuware -The aim of this textbook is to provide undergraduate students with an introduction to the basic theoretical models of computability, and to develop some of the model's rich and varied structure. Students who have already some experience with elementary discrete mathematics will find this a well-paced first course, and a number of supplementary chapters introduce more advanced concepts. The first part of the book is devoted to finite automata and their properties. Pushdown automata provide a broader class of models and enable the analysis of context-free languages. In the remaining chapters, Turing machines are introduced and the book culminates in discussions of effective computability, decidability, and Gödel's incompleteness theorems. Plenty of exercises are provided, ranging from the easy to the challenging. As a result, this text will make an ideal first course for students of computer science.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 420 pp. Englisch.

Buch. Condizione: Neu. Neuware - Intended as an introduction to robot mechanics for students of mechanical, industrial, electrical, and bio-mechanical engineering, this graduate text presents a wide range of approaches and topics. It avoids formalism and proofs but nonetheless discusses advanced concepts and contemporary applications. It will thus also be of interest to practicing engineers. The book begins with kinematics, emphasizing an approach based on rigid-body displacements instead of coordinate transformations; it then turns to inverse kinematic analysis, presenting the widely used Pieper-Roth and zero-reference-position methods. This is followed by a discussion of workplace characterization and determination. One focus of the discussion is the motion made possible by sperical and other novel wrist designs. The text concludes with a brief discussion of dynamics and control. An extensive bibliography provides access to the current literature.

Buch. Condizione: Neu. Neuware - The underlying philosophy of Computer Integrated Manufacturing (CIM) is to traverse physical and functional boundaries to promote synergy on an enterprise-wide basis. However, the lack of understanding coupled with prevailing gaps in capability and know-how can undermine the adoption and acceptance of integrated manufacturing, and impose constraints when building such systems. The CIM Debacle approaches this problem by providing a balanced text on enabling and emerging CIM related technologies, discussed in view of the industry's immediate concerns and pragmatic requirements. It explains in a clear manner the issues concerning integrated manufacturing, with particular reference to application software interoperability. The methodologies, software toolset and enabling mechanisms necessary to facilitate software interoperability, functional interaction and workflow management, and to overcome forms of functional modules, are also addressed. Aspects of enterprise modeling, integrating infrastructures to provide an architectural focus to facilitate systems integration, and systems life-cylce support are covered. In addition, a 'proof-of-concept' integrated manufacturing system is also presented in order to show how such a system can be effectively realised. --- '.the underlying concepts exemplified by Valdew Singhs approach to software interoperability will be equally applied post the year 2000, when business objects and software components libraries have become an industrial reality' Professor Richard Weston, Head of Manufacturing System Integration Research Institute Loughborough University, UK ---.

Taschenbuch. Condizione: Neu. Neuware -In der wissenschaftlichen Gemeinschaft herrscht Einigkeit darüber, daß sich die Erde erwärmt. Erbittert wird aber über das Ausmaß gestritten. Dieses Buch ist geeignet, die Debatte zu versachlichen und zu beleben. Der Autor beschreibt die neuesten wissenschaftlichen Ergebnisse und die sich daraus ergebenden möglichen Folgen für das Erdklima. Die klare und ausgewogene Darstellung wird durch zahlreiche informative Karten und Graphiken unterstützt. Der Leser wird angeregt, über Fragen nachzudenken, die im Mittelpunkt der Umweltdiskussion stehen: Können wir unseren Lebensstil beibehalten Welche Welt werden wir unseren Kindern hinterlassen Sind wir fähig, von einem reinen Konsumverhalten zu einer schonenden Nutzung der Rohstoffe überzugehen Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 244 pp. Deutsch.

Buch. Condizione: Neu. Neuware -The theory of practical rationality does not belong to one academic discipline alone. There are quite divergent philosophical, economical, sociological, psychological and politological contributions. Sometimes the disciplinary boundaries impede theoretical progress. On the other hand it is an indication for the high complexity of the subject that so many divergent paradigms compete with one another, or - what is worse - live separately in a kind of splendid isolation. Decision theory in the broader sense, embracing the theory of games and collective choice theory, can help to understand practical reason in philosophical analysis. But there are interesting aspects which cannot be dealt with adequately within a decision-theoretic conceptual framework. To have both of these convictions justifies to neglect dis ciplinary boundaries and poses a problem for the orthodoxies of either sides. All the essays of this volume focus on the relation between economic rationality and practical reason and discuss different aspects of the same problem, i. e. a basic deficiency in the standard economic theory of practical rationality. But philosophical analysis would not be of much help if it just rejected the economic paradigm. It must rather help to integrate economic aspects into a broader view on practical reason.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 188 pp. Englisch.

Buch. Condizione: Neu. Neuware -'Nature performs not hing vainly, and makes nothing unnecessary' Aristotle Interest in the passage of charged particles through crystals first appeared at the beginning of this century following experiments on x-ray diffraction in crystallattices, which provided the proof of an ordered distribution of atoms in a crystal. Stark [1] put forward the hypothesis that certain directions in a crystal should be relatively transparent to charged particles. These first ideas on the channeling of charged particles in crystals were forgotten but became topical again in the early 1960s when the channeling effect was rediscovered by computer simulation [2] and in experiments [3] that revealed anomalously long ion ranges in crystals. The orientational ef fects during the passage of charged particles through crystals have been found for a whole range of processes characterized by small impact parameters for collisions between particles and atoms: nuclear reactions, large-angle scatter ing, energy losses. Lindhard explained the channeling of charged particles in crystals [4]. The results of the numerous investigations into the channeling of low-energy (amounting to several MeV) charged particles in crystals have been summarized in several monographs and reviews [5~8l.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 238 pp. Englisch.

Buch. Condizione: Neu. Neuware -Planetary nebulae are the classic subject of astrophysics. The physical pro cesses occurring in this highly ionized gaseous medium, the formation of emis sion lines in clearly specified conditions, the continuous emission extending from the far ultraviolet up to infrared and radio frequencies, the generation of exotic forms of radiation predicted by atomic physics, along with methods for deciphering the observed spectra and detecting physical and kinematic parameters of the radiating medium, etc. - all these problems form the solid foundations of the physical theory of gaseous nebulae. They are an essential part of the arsenal of powerful tools and concepts without which one cannot imagine understanding and interpreting the enormous diversity of processes taking place in the Universe - in gaseous envelopes surrounding the stars of various classes, from cool dwarfs and flare stars up to hot supergiants, as well as in stellar chromospheres and coronae, in atmospheres of unstable and anomalous stars, in circumstellar clouds and gaseous shells born in nova and supernova explosions, in diffuse nebulae and the interstellar medium, in interacting binary systems, in galaxies with emission lines, in quasars, etc. The last thirty years have seen a turning-point in our knowledge concern ing the very nature of planetary nebulae (PNs). The radio emission of PNs was discovered after it was predicted theoretically. On the other hand, the powerful infrared emission discovered both in the continuum and in emission lines was never expected.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 536 pp. Englisch.

Buch. Condizione: Neu. Neuware -At the beginning we would like to introduce a refinement. The term 'VLSI planarization' means planarization of a circuit of VLSI, Le. the embedding of a VLSI circuit in the plane by different criteria such as the minimum number of connectors, the minimum total length of connectors, the minimum number of over-the-element routes, etc. A connector is designed to connect the broken sections of a net. It can be implemented in different ways depending on the technology. Connectors for a bipolar VLSI are implemented by diffused tun nels, for instance. By over-the-element route we shall mean a connection which intersects the enclosing rectangle of an element (or a cell). The possibility of the construction such connections during circuit planarization is reflected in element models and can be ensured, for example, by the availability of areas within the rectangles where connections may be routed. VLSI planarization is one of the basic stages (others will be discussed below) of the so called topological (in the mathematical sense) approach to VLSI design. This approach does not lie in the direction of the classical approach to automation of VLSI layout design. In the classical approach to computer aided design the placement and routing problems are solved successively. The topological approach, in contrast, allows one to solve both problems at the same time. This is achieved by constructing a planar embedding of a circuit and obtaining the proper VLSI layout on the basis of it.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 196 pp. Englisch.

Buch. Condizione: Neu. Neuware -Sexual mutilation is a global problem that affects 15. 3 million children and young adults annually. In terms of gender, 13. 3 million boys and 2 million girls are involuntarily subjected to sexual mutilation every year. While it is tempting to quantify and compare the amount of tissue removed from either gender, no ethical justification can be made for removing any amount of flesh from the body of another person. The violation of human rights implicit in sexual mutilation is identical for any gender. The violation occurs with the first cut into another person 's body. Although mutilation is a strong term, it precisely and accurately describes a condi tion denoting 'any disfigurement or injury by removal or destruction of any conspicuous or essential part of the body. ' While such terms as 'circumcision' and 'genital cutting' are less threatening to our sensitivities, they ultimately do a disservice by masking the fact of what is actually being done to babies and children. Although the courageous example of the survivors of sexual mutilation indicates that humans can certainly live and even re produce without all of their external sexualorgans, this biological phenomenon does not, however, justify subjecting a person to sexual mutilation. The remarkable resilience of the human body is a testament to the importance nature places on reproduction rather than a vindication for surgical practices that compromise this function.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 260 pp. Englisch.

Buch. Condizione: Neu. Neuware -The climate change problem can only be effectively dealt with if global anthropogenic greenhouse gas (GHG) emissions can be reduced substantially. Since the emission of such gases is closely related to the economic growth of countries, a critical problem to be addressed by the United Nations Framework Convention on Climate Change (FCCC) is: how will the permissible emission levels be shared between industrialised (ICs) and developing countries (DCs) The thesis of this book is that the long-term effectiveness of the FCCC runs the risk of a horizontal negotiation deadlock between countries and the risk of vertical standstill within countries if there is little domestic support for the domestic implementation of measures being announced in international negotiations. The research question is: Can one observe trends towards horizontal deadlock and vertical standstill and if yes, how can the treaty design be improved so as to avoid such potential future bottlenecks The research focuses on the perspectives of domestic actors on the climate convention and related issues in four developing countries: India, Indonesia, Kenya and Brazil. The following key findings emerge from the research: 1. Handicapped negotiating power: The common theme of the foreign policy of DCs is that ICs are responsible for the bulk of the GHG emissions and need to take appropriate domestic action.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 268 pp. Englisch.

Buch. Condizione: Neu. Neuware -Geographic Information Systems (GIS) have been experiencing a steady and unprecedented growth in terms of general interest, theory development, and new applications in the last decade or so. GIS is an inter-disciplinary field that brings together many diverse areas such as computer science, geography, cartography, engineering, and urban planning.Database Issues in Geographic Information Systems approaches several important topics in GIS from a database perspective. Database management has a central role to play in most computer-based information systems, and is expected to have an equally important role to play in managing information in GIS as well. Existing database technology, however, focuses on the alphanumeric data that are required in business applications. GIS, like many other application areas, requires the ability to handle spatial as well as alphanumeric data. This requires new innovations in data management, which is the central theme of this monograph. The monograph begins with an overview of different application areas and their data and functional requirements. Next it addresses the following topics in the context of GIS: representation and manipulation of spatial data, data modeling, indexing, and query processing. Future research directions are outlined in each of the above topics. The last chapter discusses issues that are emerging as important areas of technological innovations in GIS.Database Issues in Geographic Information Systems is suitable as a secondary text for a graduate level course on Geographic Information Systems, Database Systems or Cartography, and as a reference for researchers and practitioners in industry.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 156 pp. Englisch.

Buch. Condizione: Neu. Neuware -time series models, which allow for aquite exhaustive studyoftheunderlyingdynamics.Itisthereforepossibletoreexamineanumberof classicalquestions like the random walkhypothesis, prediction intervals building, presenceoflatentvariables [factors] etc., and to test the validity ofthe previously established results.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 244 pp. Englisch.

Buch. Condizione: Neu. Neuware -Ethylene is a simple gaseous plant hormone produced by higher plants, bacteria and fungi. Thanks to new tools that have become available in biochemistry and molecular genetics, parts of the ethylene biosynthesis, perception and signal transduction reactions have been elucidated. This knowledge has been applied to enhance the quality of a number of agronomically important crops. In Biology and Biotechnology of the Plant Hormone Ethylene, leading figures in the field provide surveys of the current state of ethylene biosynthesis and action, perception and signal transduction pathways, senescence, biotechnological control, and the involvement of ethylene in pathogenesis and stress.Audience: Indispensable to all academic, industrial and agricultural researchers as well as undergraduates and graduates in plant biology, biochemistry, genetics, molecular biology and food science.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 384 pp. Englisch.

Buch. Condizione: Neu. Neuware -. The theory of difference equations, the methods used in their solutions and their wide applications have advanced beyond their adolescent stage to occupy a central position in Applicable Analysis. In fact, in the last five years, the proliferation of the subject is witnessed by hundreds of research articles and several monographs, two International Conferences and numerous Special Sessions, and a new Journal as well as several special issues of existing journals, all devoted to the theme of Difference Equations. Now even those experts who believe in the universality of differential equations are discovering the sometimes striking divergence between the continuous and the discrete. There is no doubt that the theory of difference equations will continue to play an important role in mathematics as a whole. In 1992, the first author published a monograph on the subject entitled Difference Equations and Inequalities. This book was an in-depth survey of the field up to the year of publication. Since then, the subject has grown to such an extent that it is now quite impossible for a similar survey, even to cover just the results obtained in the last four years, to be written. In the present monograph, we have collected some of the results which we have obtained in the last few years, as well as some yet unpublished ones.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 524 pp. Englisch.