springer apr 1992 (214 risultati)

Taschenbuch. Condizione: Neu. Neuware - Saving Our Planet analyses the changes (both positive and negative) that have occurred in the environment in the past two decades. It focuses not only on the state of the environment but also on the interactions between development activities and the environment. It highlights the main responses since 1972 to protect the environment. It is based on a wide-ranging review of the scientific literatue, UNEP reports (and other sources) and over 500 references are listed.

Buch. Condizione: Neu. Neuware - This book presents case studies of the development of videotex in the UK, France, Germany, Italy, the Netherlands, Austria, Switzerland, Belgium, Denmark, Spain, Sweden, Ireland and the United States. These studies offer an excellent overview of the many factors and actors which might influence the outcome of complex innovation and implementation processes. Videotex is an interlocked innovation comprising not only innovations in the infrastructure (networks, hard- and software) but also an innovation in the supply of services and the user demand. If only one of these elements is absent the entire chain breaks down and the innovation process is hampered. In Europe two different implementation strategies can be distinguished: the Prestel and the Télétel scenarios. Until now, only Télétel has proved successful and only in one country: France. Given this state of affairs the following question is raised -- will the relaunch of videotex succeed in countries where the initial Prestel strategy failed Or will an open market approach, as followed in the United States, present a more direct route to the successful relaunch of videotex in the 1990s This collection presents a coherent up-to-date survey and analysis of videotex systems operating thoughout Europe. It analyses the use, success, limitations and future of videotex systems and related technologies. This collection will be of interest to computer, information and communication scientists, especially those who work in telecommunication and information management. It also offers an excellent case study of information technology policy analysis and as such will be of interest to social and political scientists specialising in technological policy.

Buch. Condizione: Neu. Neuware - 1 The baculoviruses.- 1.1 Introduction.- 1.2 Isolation and host range.- 1.3 Structure and classification.- 1.4 Baculovirus replication in vivo.- 1.5 Baculovirus replication in vitro.- 1.5.1 Baculovirus gene expression and replication.- 1.5.2 Baculovirus gene promoters.- 1.6 Genetic engineering of baculovirus insecticides.- 2 The development of baculovirus expression vectors.- 2.1 Introduction and historical perspective.- 2.2 The merits of the baculovirus expression system.- 2.2.1 Advantages.- 2.2.2 Disadvantages.- 2.3 General principles for inserting foreign genes into the baculovirus genome.- 2.4 Baculovirus transfer vectors.- 2.4.1 Polyhedrin promoter-based expression vectors.- 2.4.2 p10 promoter-based transfer vectors.- 2.4.3 Multiple expression vectors.- 2.4.4 Transfer vectors utilizing other baculovirus gene promoters.- 2.5 Selection of recombinant viruses.- 2.5.1 Selection of a polyhedrin-negative phenotype.- 2.5.2 Selection of f3-galactosidase-negative viruses.- 2.5.3 Recombinant virus selection using dot-blot hybridization.- 2.5.4 Screening for a positive phenotype.- 2.5.5 Enhancing the numbers of recombinant viruses.- 3 Processing of foreign proteins synthesized using baculovirus vectors in insect cells.- 3.1 Introduction.- 3.2 Glycosylation.- 3.3 Phosphorylation, acylation and amidation.- 3.4 Proteolytic processing.- 3.5 Cellular targeting and secretion.- 3.6 Tertiary and quaternary structure formation.- 3.7 Expression of viral genes.- 3.8 Expression of bacterial and fungal genes.- 3.9 Post-transcriptional processing.- 4 Construction of transfer vectors containing the foreign gene.- 4.1 Introduction.- 4.2 Isolation of foreign gene coding sequences.- 4.2.1 Some general guidelines.- 4.2.2 Isolation of DNA fragments from agarose gels.- 4.3 Modifying the ends of DNA molecules.- 4.3.1 Mung bean nuclease.- 4.3.2 Klenow fill-in.- 4.4 Preparation of the transfer vector.- 4.5 DNA ligations.- 4.6 Transformation of bacteria.- 4.7 Screening for recombinant baculovirus transfer vectors.- 4.7.1 Colony hybridization.- 4.7.2 Rapid isolation of bacterial plasmid DNA (mini-preps).- 4.8 Analysis of recombinant transfer vectors.- 4.9 Isolation of highly purified plasmid DNA (maxi-preps).- 5 Insect cell culture media and maintenance of insect cell lines.- 5.1 Introduction.- 5.2 Cell lines.- 5.3 Culture media.- 5.4 Preparation of culture media.- 5.4.1 Preparation of TC100/FCS growth medium.- 5.4.2 Preparation of Grace's (TNM-FH) growth medium.- 5.4.3 Preparation of 4.5 1 TC100 medium from powdered formula.- 5.4.4. Preparation of TC100 medium from individual ingredients.- 5.4.5 Specialized TC100 media.- 5.4.6 Alternative insect cell culture media.- 5.5 Glassware and disposable plasticware.- 5.5.1 Suggested cleaning regime for tissue culture glassware.- 5.6 Insect cell culture.- 5.6.1 Routine sub-culturing of Sf cell lines (monolayer cultures).- 5.6.2 Routine sub-culturing of Sf cells maintained in spinner cultures.- 5.7 A guide to Sf cell seeding densities for experimental work.- 5.8 Freezing, storage and recovery of insect cells in liquid nitrogen.- 5.8.1 Freezing and storage of cells in liquid nitrogen.- 5.8.2 Recovery of cells from liquid nitrogen.- 5.9 A guide to adapting cells to serum-free media.- 6 Propagation, titration and purification of AcMNPV in cell culture.- 6.1 Introduction.- 6.1.1 Safety considerations: general rules for working with baculoviruses.- 6.2 Infection of cells with virus for experimental work.- 6.2.1 Infection of Sf cells in monolayer culture.- 6.2.2 Infection of Sf cells in suspension culture.- 6.3 Titration of virus by plaque-assay.- 6.3.1 Standard plaque-assay.- 6.3.2 Plaque-assay of lacZ-positive viruses.- 6.4 Plaque-picking and plaque-purification.- 6.5 Amplification of virus stocks.- 6.5.1 To prepare a seed stock of virus from a plaque-pick.- 6.5.2 Preparation of an intermediate stock of virus.- 6.5.3 Preparation of a high-titre working stock of virus.- 6.6 Large-scale production of virus for the purifi.

Buch. Condizione: Neu. Neuware - Combination Immunotherapy: Immune Therapy of Human Cancers (R.P. Gale, A. Butturini). Clinical Applications of Combination Chemoimmunotherapy in Cancer: Combination of Fluorouracil and Interfon (R. Pazdur). Combination Approaches and Gene Therapy in the Treatment of AIDS and Other Infectious Diseases: Combination Therapies with Cytokines and AntiCytokines in Murine Opportunistic Infections (L. Romani et al.). Mechanism of Action and Synergy Between Drugs, Biological Response Modifiers and/or Vaccines in Combination Therapies: The Case for Synergy of Thymic Hormones and Interleukins in Immune Reconstitution (J.W. Hadden et al.). Immune Mediated Tumor Destruction (P.M. Sondel). Prospects and Future Directions Using Animal Models to Define Effective Combination Therapies with Biological Response Modifiers: Cancer Immunotherapy (L. Tentori et al.). 29 additional articles. Index.

Buch. Condizione: Neu. Neuware - Why has the energetics of organometallic species become an area of recognized importance What methods are available to obtain information on reaction enthalpies and bond `strengths' What other methods are likely to be used in the future Is the present thermochemical data bank satisfactory for our needs How accurately can we estimate the energetics of organometallic reactions Can theory offer reliable help Which are the main problems to be tackled by the experimentalist These are some of the questions addressed in the present book, which contains contributions by most of the leading groups in the area of organometallic thermochemistry.

Buch. Condizione: Neu. Neuware.

Buch. Condizione: Neu. Neuware - Tropical forests affect climate, and the removal of the forests will change climate. Or not This book discusses basic questions on how far, if at all, tropical deforestation leads to climatic change. The question of this uncertainty is particularly addressed. One important consequence of the uncertainties of whether deforestation affects climate is how scientific findings best illuminate the policy-making process.

Buch. Condizione: Neu. Neuware - Contributed to by leading experts, this book looks at the history of coppice woodlands, their physical environment, the different management techniques used and their effects on the flora and fauna. The implications of this for conservation is controversial and this is debated in a lively way in many of the chapters.

Buch. Condizione: Neu. Neuware - Nitrogen fixation is a key component of the nitrogen cycle, one of the most fundamental cycles in the biosphere. Conversion of atmospheric nitrogen into organic nitrogen compounds can be carried out only by certain bacteria and blue-green algae (cyanobacteria). Some nitrogen fixing bacteria live symbiotically with leguminous plants such as peas, beans, clover, and certain tropical trees in nodules on the plants' roots, while others live independently in the soil and aquatic habitats. By the activity of these microorganisms, the soil is enriched with the nitrogen required for plant growth and function. Thus the topic is of considerable practical as well as fundamental importance. In Biological Nitrogen Fixation, the leading researchers in nitrogen fixation from all over the world contribute up-to-the-minute general reviews on all aspects of the subject, from the molecular biology and genetics to the biochemistry, physiology, and ecology of nitrogen fixation. This compendium of current research is an indispensable reference for all involved in nitrogen fixation research, and of use to all who deal indirectly with the subject. It will also serve as a thoroughly up-to-date textbook for graduate students in microbiology, plant science, biochemistry, molecular biology, plant pathology, agronomy, and genetics.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This is a revised version of a doctoral thesis, submitted in mimeographed fonn to the Faculty of Arts, Uppsala University, 1988. It deals with the notions of struc tural dependence and independence, which are used in many applications of mathe matics to science. For instance, a physical law states that one physical aspect is structurally dependent on one or more other aspects. Structural dependence is closely related to the mathematical idea of functional dependence. However, struc tural dependence is primarily thought of as a relation holding between aspects rather than between their measures. In this book, the traditional way of treating aspects within measurement theory is modified. An aspect is not viewed as a set-theoretical structure but as a function which has sets as arguments and set-theoretical structures as values. This way of regarding aspects is illustrated with an application to social choice and group deci sion theory. Structural dependence is connected with the idea of concomitant variations and the mathematical notion of invariance. This implies that the study of this notion has roots going back to Mill's inductive logic, to Klein's Erlangen Program for geome try and to Padoa's method for proving the independence of symbols in formal logic. 264 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Architectures and tools are two important considerations in the construction of interactive computer systems. The former is concerned with the optimal structural organisation of systems and the latter with the effective support of the design and management of user interfaces. They are regarded as the areas of research most likely to contribute to the development of existing interactive systems, in particular by providing improved architectures capable of supporting new styles of interaction and more sophisticated software tools to improve productivity. This volume combines the proceedings of two workshops held in York and Glasgow which concentrated on architectures and tools respectively. In doing so it addresses the problems of user interface construction from two complementary viewpoints and provides alternative perspectives on many of the central issues. Some of the papers are published in expanded form to provide a more comprehensive coverage of the topics and two additional papers have been included which offer a useful insight into issues raised by the workshops. The papers address formal and theoretical concerns as well as academic and commercial ones. Specific topics covered include novel-input models, architectures for real-time systems and object-oriented user interface tools for X-widgets, NeWS- and Smalltalk-based applications. The papers also include presentations of new tools and architectural designs. Building Interactive Systems: Architectures and Tools provides the most extensive recent account of research into the relationship between architectures and tools in the construction of interactive computer systems and will be of interest to researchers, postgraduate students and software developers. 256 pp. Englisch.

Buch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book Computer Modelling of Seas and Coastal Regions is the first volume of the two volume proceedings of the International Conference on Computer Modelling of Seas and Coastal Regions and Boundary Elements and Fluid Dynamics, held in Southampton, U.K., in April 1992. The importance of accurate modelling of seas and coastal regions is empha sized by the need for predicting their behaviour under extreme conditions. Problems, such as pollution of these areas, have become a major interna tional concern and the related environmental problems need further study using techniques which can be used to determine the ways in which the water systems respond to different effects and try to minimize the damage. They can also lead to the development of early warning systems in combina tion with remote sensing equipment and experimental sampling techniques. Furthermore, once a disaster occurs, the model can be used to optimize the use of the available resources. The conference addresses coastal region modelling both under normal and extreme conditions, with special reference to practical problems, currently being experienced around the world. Many of the delegates are actively involved in the modelling of seas and coastal regions. This volume includes sections on waves, tides, shallow water circulation and channel flow, siltation and sedimentation, pollution problems, and computu tational techniques. The organizer would like to thank the International Scientific Advisory Committee, the conference delegates and all those who have actively sup ported the meeting. 540 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Every year we see a remarkable increase in scientific knowledge. We are learning more each day about the world around us, about the numerous biological organisms of the biosphere, about the physical and chemical processes that shaped and continue to change our planet. The cataloging, retrieval, dissemination, and use of this new information along with the continued development of new computer technology provide some of the most challenging problems in science as we enter the Information Age. With the explosion of knowledge in science, it is especially important that students in introductory courses learn not only the basic material of a subject, but also about the newest developments in that subject. With this goal in mind, we have prepared a second edition of Introduction to Plant Diseases: Identification and Management. We prepared this edition with the same general purpose that we had for the first edition - to provide practical, up-to-date information that helps in the successful management of diseases on food, fiber, and landscape plants for students who do not have a strong background in the biological sciences. We included new information on (1) the precise identification of diseases and the pathogens that cause them, (2) the development of epidemics of plant diseases, (3) the application of biotechnology in plant pathology, (4) the use of alternative methods of crop production and disease management that help protect the environment, and (5) diseases that have become more important since the first edition was published. 384 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This volume contains the proceedings of the thirdInternational Workshop on Computer Aided Verification, CAV'91, held in Aalborg, Denmark, July 1-4, 1991. The objectiveof this series of workshops is to bring together researchersand practitioners interested in the development and use ofmethods, tools and theories for automatic verification of(finite) state systems. The workshop provides a uniqueopportunity for comparing the numerous verification methodsand associated verification tools, and the extent to whichthey may be utilized in application design. The emphasis isnot only on new research results but also on the applicationof existing results to real verification problems.The papers in the volume areorganized into sections onequivalence checking, model checking, applications, toolsfor process algebras, the state explosion problem, symbolicmodel checking, verification and transformation techniques,higher order logic, partial order approaches, hardwareverification, timed specification and verification, andautomata. 504 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Declarative programming languages are based on sound mathematical foundations which means that they offer many advantages for software development. These advantages include their powerful descriptive capabilities, the availability of program analysis techniques and the potential for parallel execution. This volume contains the proceedings of a seminar and workshop organised by the Esprit Basic Research Action Phoenix in collaboration with the Esprit Basic Research Action Integration. Both these groups have been closely involved in investigating the foundations of declarative programming and the integration of various language paradigms, as well as the developing aspects of related technology. The main aim of the seminar and workshop was to provide a forum for the results of this work, together with contributions from other researchers in the same field. These papers cover a variety of important technical areas such as foundations and languages, program transformation and analysis, integrated approaches, implementation techniques, abstract machines and programming methodology. The resulting volume provides an in-depth picture of current research into declarative programming. It will be of special interest to researchers in programming languages and methodology, students of artificial intelligence and anyone involved in industrial research and development. 336 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Designers and operators of rotating machinery have to deal with the effects of machine vibration and wear. The increasing demands for quieter machine operation, longer machine life and a greater efficiency of operation have led to the use of sophisticated design aids. Research into rotating machinery is therefore of substantial and increasing importance. Rotordynamics '92 provides a record of some of the most recent research methods and results relating to the design and operation of rotating machinery. The conference is international in character and draws on research from a wide range of respected sources. 448 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The analysis of signals and systems using transform methods is a very important aspect of the examination of processes and problems in an increasingly wide range of applications. Whereas the initial impetus in the development of methods appropriate for handling discrete sets of data occurred mainly in an electrical engineering context (for example in the design of digital filters), the same techniques are in use in such disciplines as cardiology, optics, speech analysis and management, as well as in other branches of science and engineering. This text is aimed at a readership whose mathematical background includes some acquaintance with complex numbers, linear differen tial equations, matrix algebra, and series. Specifically, a familiarity with Fourier series (in trigonometric and exponential forms) is assumed, and an exposure to the concept of a continuous integral transform is desirable. Such a background can be expected, for example, on completion of the first year of a science or engineering degree course in which transform techniques will have a significant application. In other disciplines the readership will be past the second year undergraduate stage. In either case, the text is also intended for earlier graduates whose degree courses did not include this type of material and who now find themselves, in a professional capacity, requiring a knowledge of discrete transform methods. 200 pp. Englisch.

Buch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Co-published with Computational Mechanics Publications, UK. Papers presented at the Third International Conference on Computer Aided Technology Design in Composite Material Technology, University of Delaware, Newark, USA, May 1992. 652 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -'In October of last year experts from different research disciplines, like control engineering, systems engineering, sociology, art, philosophy, and politics met in Krems (Austria) to discuss the interplay between recent developments in automation and the culture and social framework, with special emphasis on the approaches in the East and the West. Main topics of these intensive discussions were technology design, automation software and culture, social conditions, education, computer and art, design of man-machine-systems, CIM and culture as well as appropriate methods for interdisciplinary research. A selection of papers presented at this conference can be found in this volume. 124 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware 388 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Those interested in the relationships between psychological and physiological functions will again and again be impressed by the fact that great individual differences and large situational variability are manifested in psychophysiological data. Psychophysiology from a differential perspective has been an enduring theme throughout the history of personality and temperament research. However, the present book is the first to bear the word differential in its title. Actually, this monography is not only concerned with psychophysiological personality research, but with a much broader program of systematic investigation. Multivariate research methodology permits one to operationalize physiological response profiles, both with regard to lasting differences between persons and the discrimination of situations. In order to determine functional relationships between person characteristics and situational demands, that is, to determine the processes of stimulus-response mediation, one first needs to systemize these various sources of variance in assessment models and subsequently partition the observed covariance. A series of the author's own investigations in the Hamburg and Freiburg laboratories shows just how fruitful this research approach can be. 416 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This volume includes a selection of papers presented at the GAMM/ IFIP-Workshop on IIStochastic Optimization: Numerical Methods and ll Technical Applications , held at the Federal Armed Forces Univer sity Munich, May 29-31, 1990. The objective of this meeting was to bring together scientists from Stochastic Programming and from those Engineering areas, where Mathematical Programming models are common tools, as e.g. Optimal structural Design, Power Dispatch, Acid Rain Abatement etc . Hence, the aim was to discuss the effects of taking into account the in herent randomness of some data of these problems, i.e. considering Stochastic Programming instead of Mathematical Programming models in order to get solutions being more reliable, but not more expen sive. An international programme committe2 was formed which included H.A. Eschenauer (Germany) P. Kall (Switzerland) K. Marti (Germany, Chairman) J. Mayer (Hungary) G.I. Schueller (Austria) Although the number of participants had to be small for technical reasons, the area covered by the lectures during the workshop was rather broad. It contains theoretical insight into stochastic pro gramming problems, new computational approaches, analyses of known solution methods, and applications in such very different technical fields as ecology, energy demands, and optimal reliability of me chanical structures. In particular, the applied presentation also pointed to several open methodological problems. 196 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This volume collects the papers accepted for presentation atthe Second European Conference on Computer Vision, held inSanta Margherita Ligure, Italy, May 19-22, 1992. Sixteenlong papers, 41 short papers and 48 posters were selectedfrom 308 submissions.The contributions are structured into 14 sections reflectingthe major research topics in computer vision currentlyinvestigated worldwide. The sections are entitled: features,color, calibration and matching, depth, stereo-motion,tracking, active vision, binocular heads, curved surfacesand objects, reconstruction and shape, recognition, andapplications. 932 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Many commercial and defense applications require a database system that protects data of different sensitivities while still allowing users of different clearances to access the system. This book is a collection of papers covering aspects of the emerging security technology for multilevel database systems. It contains reports on such landmark systems as SeaView, LDV, ASD, Secure Sybase, the UNISYS secure distributed system, and the secure entity-relationship system GTERM. Much of the research is concerned with the relational model, although security for the entity-relationship and object-oriented models of data are also discussed. Because the field is so new, it has been extremely difficult to learn about the research going on in this area, until now. This book will be invaluable to researchers and system designers in database systems and computer security. It will also be of interest to data users and custodians who are concerned with the security of their information. This book can also be used as a text for an advanced topics course on computer security in a computer science curriculum. 280 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -These lecture notes are based on the joint work of the author and Arthur Fischer on Teichmiiller theory undertaken in the years 1980-1986. Since then many of our colleagues have encouraged us to publish our approach to the subject in a concise format, easily accessible to a broad mathematical audience. However, it was the invitation by the faculty of the ETH Ziirich to deliver the ETH N achdiplom-Vorlesungen on this material which provided the opportunity for the author to develop our research papers into a format suitable for mathematicians with a modest background in differential geometry. We also hoped it would provide the basis for a graduate course stressing the application of fundamental ideas in geometry. For this opportunity the author wishes to thank Eduard Zehnder and Jiirgen Moser, acting director and director of the Forschungsinstitut fiir Mathematik at the ETH, Gisbert Wiistholz, responsible for the Nachdiplom Vorlesungen and the entire ETH faculty for their support and warm hospitality. This new approach to Teichmiiller theory presented here was undertaken for two reasons. First, it was clear that the classical approach, using the theory of extremal quasi-conformal mappings (in this approach we completely avoid the use of quasi-conformal maps) was not easily applicable to the theory of minimal surfaces, a field of interest of the author over many years. Second, many other active mathematicians, who at various times needed some Teichmiiller theory, have found the classical approach inaccessible to them. 220 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -From Gauss to G|del, mathematicians have sought an efficientalgorithm to distinguish prime numbers from compositenumbers. This book presents a random polynomial timealgorithm for the problem. The methods used are fromarithmetic algebraic geometry, algebraic number theory andanalyticnumber theory. In particular, the theory of twodimensional Abelian varieties over finite fields isdeveloped.The book will be of interest to both researchers andgraduate students in number theory and theoretical computerscience.Springer-Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 152 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -From the very beginning, algebraic topology has developed under the influ ence of the problems posed by trying to understand the topological properties of complex algebraic varieties (e.g., the pioneering work by Poincare and Lefschetz). Especially in the work of Lefschetz [Lf2], the idea is made explicit that singularities are important in the study of the topology even in the case of smooth varieties. What is known nowadays about the topology of smooth and singular vari eties is quite impressive. The many existing results may be roughly divided into two classes as follows: (i) very general results or theories, like stratified Morse theory and (mixed) Hodge theory, see, for instance, Goresky-MacPherson [GM], Deligne [Del], and Steenbrink [S6]; and (ii) specific topics of great subtlety and beauty, like the study of the funda mental group of the complement in [p>2 of a singular plane curve initiated by Zariski or Griffiths' theory relating the rational differential forms to the Hodge filtration on the middle cohomology group of a smooth projec tive hypersurface. The aim of this book is precisely to introduce the reader to some topics in this latter class. Most of the results to be discussed, as well as the related notions, are at least two decades old, and specialists use them intensively and freely in their work. Nevertheless, it is impossible to find an adequate intro duction to this subject, which gives a good feeling for its relations with other parts of algebraic geometry and topology. 284 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The purpose of this book is to analyse and discuss a seriesof topics related with environmental conservation, land-useplanning and management and impact prevention as seen fromthe perspective of the Earth Sciences, but with an inte-grated, interdisciplinary approach.The contributions included in the book intend to give anoverview of existing problems and trends and to point outcertain lines along which work and/or actions will be par-ticularly needed in the near future. In short, they intendto show where we stand now with regard to those problems andin what direction we should move.Readers will find particularly useful the brief presentationof a variety of important environmental earth science top-ics, the description of the present state of the art and thesuggestions for methodological approaches to solve differentproblems, as well as the guidelines for action presentedthroughout the book. 568 pp. Englisch.

Buch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The Developing Brain: The Internal Environment of the Developing Brain; K.M. Dziegielewska, N.R. Saunders. Neuronal Migration and Differentiation During Normal and Genetically-Perturbed Development of the Hippocampal Formation; R.S. Nowakowski. Neurochemical Aspects of the Developing Brain: Dopaminergic Innervation of the Cerebral Cortex; B. Berger. Neuropathological Indicants of Neurodevelopmental Anomalies in Schizophrenics: Clinical and Neurodevelopmental Aspects of Brain Pathology in Schizophrenia; B. Bogerts, P. Falkai. Obstetrical Events and Adult Schizophrenia; K.L. Dykes et al. Structural Imaging and Neuropsychological Evidence of Neurodevelopmental Anomalies: Structural Brain Measurements on MRI Scans in Schizophrenia; H.A. Nasrallah, et al. Morphologic Markers of Neurodevelopmental Paths to Schizophrenia; R.M. Bilder, G.Degreef. Facts About Schizophrenia and Neurodevelopment: Neurodevelopment and Chronological Curiosities of Schizophrenia; P.B. Jones, et al. Three additional articles. Index. 256 pp. Englisch.

Buch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Clusters and superclusters of galaxies are the largest objects in the Universe. They have been the subject of intense observational studies at a variety of wavelengths, from radio to X-ray which has provoked much theoretical debate and advanced our understanding of the recent evolution of the large-scale structure of the Universe. The current status of the subject is reviewed in this volume by active researchers who lectured at a NATO Advanced Study Institute held in Cambridge, England in July 1991. Much of the material is presented in a pedagogical manner and will appeal to scientists, astronomers and graduate students interested in extragalactic astronomy. 384 pp. Englisch.