springer netherlands dez 1992 (97 Ergebnisse)

Buch. Zustand: Neu. Neuware -The subject of liquid crystals and their use in electronic displays and in non-linear optical systems has become of tremendous importance during the last decade; and the incorporation of liquid crystal units into polymeric materials has led to a group of new materials with diverse properties. Some of these properties have been utilized in new products and some have yet to be used. Much published work has appeared that deals with specific materials or particular applications, and it was felt that a book was needed to examine and explain the underlying principles governing the diverse properties of these liquid crystal polymers, LCPs. The current work describes the diverse nature of LCPs, their synthesis, characterization, properties and finally their applications. It describes the manner in which liquid crystallinity or mesomorphism occurs in small molecules, monomer liquid crystals and polymer liquid crystals. Chapter 1 gives a classification of the various ways in which the meso gens may be connected to the polymer chains. Currently, the bulk of LCP material is based on main chain or longitudinal LCPs for use in engineering applications. The side chain or comb polymers are intended for use in electronics and opto-electronic systems and as surfactants. Many other variants and possibilities exist but their properties have not yet been fully studied or used. In this respect it is hoped that the current work will indicate future possibilities as well as discussing current opinion. v Preface vi Chapters 2 and 3 describe methods of characterizing the mesophases. 492 pp. Englisch.

Buch. Zustand: Neu. Neuware -Oil is the lifeblood of the global economy, and its misuse carries the risk of heavy economic and environmental penalties. This book is a collection of essays bearing on economic growth and environmental concerns for a world that will continue to be dependent on oil throughout the next century. Topics include the outlook for petroleum demand and supply, the potential for alternatives to a petroleum-based economy, the costs of controlling automobile emissions, the environmental costs of moving oil by tanker and pipeline, and competition issues in the production and distribution of petroleum products. The wide range of topics reflects the many different ways in which petroleum and use affect the quality of our lives. The essays are the end results of an initiative by the University of California Energy Institute and reflect careful research into the costs and benefits of the petroleum economy. Together, they offer new insights into the critical task of living with oil, for today and for the future. 324 pp. Englisch.

Buch. Zustand: Neu. Neuware -This book is one of the first to attempt a systematic in-depth analysis of assessment in mathematics education in most of its important aspects: it deals with assessment in mathematics education from historical, psychological, sociological, epistmological, ideological, and political perspectives. The book is based on work presented at an invited international ICMI seminar and includes chapters by a team of outstanding and prominent scholars in the field of mathematics education.Based on the observation of an increasing mismatch between the goals and accomplishments of mathematics education and prevalent assessment modes, the book assesses assessment in mathematics education and its effects. In so doing it pays particular attention to the need for and possibilities of assessing a much wider range of abilities than before, including understanding, problem solving and posing, modelling, and creativity.The book will be of particular interest to mathematics educators who are concerned with the role of assessment in mathematics education, especially as regards innovation, and to everybody working within the field of mathematics education and related areas: in R&D, curriculum planning, assessment institutions and agencies, teacher trainers, etc.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 280 pp. Englisch.

Buch. Zustand: Neu. Neuware -Substantial efforts have recently been made to reform the physician-patient relationship, particularly toward replacing the `silent world of doctor and patient' with informed patient participation in medical decision-making. This 'new ethos of patient autonomy' has especially insisted on the routine provision of informed consent for all medical interventions. Stronly supported by most bioethicists and the law, as well as more popular writings and expectations, it still seems clear that informed consent has, at best, been received in a lukewarm fashion by most clinicians, many simply rejecting what they commonly refer to as the `myth of informed consent'.The purpose of this book is to defuse this seemingly intractable controversy by offering an efficient and effective operational model of informed consent. This goal is pursued first by reviewing and evaluating, in detail, the agendas, arguments, and supporting materials of its proponents and detractors. A comprehensive review of empirical studies of informed consent is provided, as well as a detailed reflection on the common clinician experience with attempts at informed consent and the exercise of autonomy by patients.In the end, informed consent is recast as a management tool for pursuing clinically and ethically important goods and values that any clinician should see as meriting pursuit. Concurrently, the model incorporates a flexible, anticipatory approach that recognizes that no static, generic ritual can legitimately pursue the quite variable goods and values that may be at stake with different patients in different situations. Finally, efficiency of provision is addressed by not pursuing the unattainable and ancillary. Throughout, the traditional principle of beneficence is appealed to toward articulating an operational model of informed consent as an intervention that is likely to change outcomes at the bedside for the better.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 188 pp. Englisch.

Buch. Zustand: Neu. Neuware -The present book, Cases of Assessment in Mathematics Education, is one of two studies resulting from an ICMI Study Conference on Assessment in Mathematics Education and Its Effects. The book which is published in the series of ICMI Studies under the general editorship of the President and Secretary of ICMI is closely related to another study resulting from the same conference: Investigations into Assessment in Mathematics Education (Niss, 1992). The two books, although originating from the same sources and having the same editor, emphasize different aspects of assessment in mathematics education and can be read independently of one another. While the present book is devoted to presenting and discussing cases of assessment that are actually implemented, the other study attempts to critically analyze general and principal aspects of assessment. Naturally, the content of either book is enriched by the materials and perspectives provided by the other one. In order to put this book and its background into context, the nature and scope of the ICMI studies are outlined briefly below.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 230 pp. Englisch.

Buch. Zustand: Neu. Neuware -This book addresses three fundamental building blocks of JIT, namely setting up a JIT production system, improving quality, and instilling total employee involvement. JIT implementation issues are covered and supported by an industrial case study.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 244 pp. Englisch.

Buch. Zustand: Neu. Neuware -This book combines several strands of my work, both individually and in collaboration with various people, over the last couple of years. To a very large extent, I have been inspired by the many talks, classes, appointments and other interactions that took place in the exciting intellectual environ ment that grew up among the linguists working in Geneva in the period 1989-90. It is impossible to mention by name everyone who influenced the devel opment of this material, but I'd particularly like to thank the students in my class 'linguistique diachronique' during that period, who had to suffer through preliminary versions of much of this book, and often seemed to understand what I was getting at better than I did. Luigi Rizzi did more than anyone else to create the unique atmosphere here in the last couple of years, and so he deserves our gratitude for that; he was also my collaborator on the synchronic work on French inversion that inspired much of this book; he also read the whole manuscript in draft form and gave detailed comments; he is also, as anyone working in current comparative syntax knows, a wellspring of knowledge, ideas and inspiration. Maria-Teresa Guasti also read the entire manuscript and gave me invaluable comments. Sten Vikner was a great help, for much more than just Danish data. Special thanks also to Adriana Belletti, Anna Cardinaletti, Liliane Haegeman and Cecilia Poletto.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 390 pp. Englisch.

Buch. Zustand: Neu. Neuware -Economic analysis of choice under uncertainty has been dominated by the expected utility (EU) model, yet the EU model has never been without critics. Psychologists accumulated evidence that individual choices under uncertainty were inconsistent with the predictions of the EU model. Applied work in areas such as finance was dominated by the simpler mean-variance analysis. In the 1980s this skepticism was dispelled as a number of generalizations of EU were proposed, most of which were capable of explaining evidence inconsistent with EU, while preserving transitivity and dominance.Generalized expected utility is now a flourishing subfield of economics, with dozens of competing models and considerable literature exploring their theoretical properties and comparing their empirical performance. But the EU model remains the principal tool for the analysis of choice under uncertainty. There is a view that generalized models are too difficult to handle or incapable of generating sharp results. This creates a need to show that the new models can be used in the kinds of economic analysis for which EU has been used, and that they can yield new and interesting results.This book meets this need by describing one of the most popular generalized models -- the rank-dependent expected utility model (RDEU), also known as anticipated utility, EU with rank-dependent preferences, the dual theory of choice under uncertainty, and simply as rank-dependent utility. As the many names indicate, the model has been approached in many ways by many scientists and for this reason, consideration of a single model sheds light on many of the concerns that have motivated the development of generalized utility models.The popularity of the RDEU model rests on its simplicity and tractability. The standard tools of analysis developed for EU theory may be applied to the RDEU model, but since RDEU admits behavior inconsistent with EU, thefield of potential applications is widened. As such, the RDEU model is not as much a competitor to EU as an extension based on less restrictive assumptions.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 224 pp. Englisch.

Buch. Zustand: Neu. Neuware -We have written this book as a guide to the design and analysis of field studies of resource selection, concentrating primarily on statistical aspects of the comparison of the use and availability of resources of different types. Our in tended audience is field ecologists in general and wildlife biologists in particular who are attempting to measure the extent to which real animal populations are selective in their choice of food and habitat. As such, we have made no attempt to address those aspects of theoretical ecology that are concerned with how animals might choose their resources if they acted in an optimal manner. The book is based on the concept of a resource selection function, where this is a function of characteristics measured on resource units such that its value for a unit is proportional to the probability of that unit being used. We argue that this concept leads to a unified theory for the analysis and interpretation of data on resource selection and can replace many ad hoc statistical methods that have been used in the past. 196 pp. Englisch.

Buch. Zustand: Neu. Neuware -Lasers are now recognized as practical alternatives to conventional techniques for many industrial applications. After reviewing the basic theory the book provides an insight into equipment technology and applications.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 308 pp. Englisch.

Buch. Zustand: Neu. Neuware -Scholarly studies of mathematics and the sciences, carried out by philos ophers and historians in Taiwan in recent years, have two main goals: first, positive and critical participation in the logical analysis of scientific theories and scientific explanation; and second, conceptual clarification joined with faithful historical investigation of the sciences of traditional and modem China. In this book, Professors Cheng-hung Lin and Daiwie Fu have gathered fine representative essays from both endeavors. Their two introductory discussions guide the reader in three ways. First, we have insightful remarks concerning the development of science studies in Taiwan during the past three decades. Then we see the place of such studies, particularly those in the logic and methodology of science, in the philosophy of science as that discipline has evolved in the West in recent years. Finally we have an account of the changes that have occurred among philosophers and historians of Chinese science as they have turned away from an assump tion of Western definitions of scientific achievement, a tum that is common to Taiwanese, Chinese, Japanese and Western scholars.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 294 pp. Englisch.

Buch. Zustand: Neu. Neuware -One service mathematics has rendered the 'Et moi, . , si j'avait su comment en revenir, human race. It has put common sense back je n 'y serais point allSpringer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 634 pp. Englisch.

Buch. Zustand: Neu. Neuware -Hydrogen peroxide is a chemical that is becoming increasingly fashionable as an oxidant, both in industry and in academia and whose production is expected to increase significantly in the next few years. This growth in interest is largely due to environmental considerations related to the clean nature of hydrogen peroxide as an oxidant, its by-product being only water. To date this chemical has largely been employed as a non-selective oxidant in operations like the bleaching of paper, cellulose and textiles, or in the formulation of detergents, and only to a minimal extent in the manufacture of organic chemicals. This book has been organized to cover the different aspects of the chemistry of hydrogen peroxide. The various chapters into which the book is divided have been written critically by the authors with the general aim of stimulating new ideas and emphasizing those aspects that are likely to lead to new developments in organic synthesis in the coming future.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 300 pp. Englisch.

Taschenbuch. Zustand: Neu. Neuware -This book is about the behaviour of teleosts, a well-defined, highly successful taxonomic group of vertebrate animals sharing a common body plan and forming the vast majority of living bony fishes. There are over 22000 living species of teleosts, including nearly all the fish of importance in commercial fisheries and aquaculture. Teleosts are represented in just about every conceivable aquatic environment from temporary desert pools to the deep ocean, from soda lakes to sub-zero Antarctic waters. Behaviour forms the primary interface between these effective survival machines and their environ ment; behavioural plasticity is the key to the success of the teleost fishes. In the decade before the publication of the first edition of this book (1986) the study of animal behaviour underwent revolutionary changes under the dual impact of the new fields of behavioural ecology and sociobiology. Quantitative, experimentally-verifiable hypotheses about why individual animals behave were formulated for the first time and met with considerable success. Much of the early work in these new fields concentrated on birds and mammals, but material presented in the first edition of this book helped to demonstrate that fish behaviour is not just a simplified version of that seen in birds and mammals. but obeys the same ecological and evolutionary rules. In the five years since the first edition. much of the early theory has matured: optimal solutions to the problems of feeding and mating require subtle trade-offs of energy balance.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 740 pp. Englisch.

Buch. Zustand: Neu. Neuware -Present trends indicate that in the years to come transnational science, whether basic or applied and involving persons, equipment or funding, will grow considerably. The main purpose of this volume is to try to understand the reasons for this denationalization of science, its historical contexts and its social forms. The Introduction to the volume sets out the socio-political, intellectual, and economic contexts for the nationalization and denationalization of the sciences, processes that have extended over four centuries. The articles examine the specific conditions that have given rise to the growth of transnational science in the 20th century. Among these are: the need for cognitive and technical standardization of scientific knowledge-products, pressure toward cost-sharing of large installations such as CERN, the voluntary and involuntary migration of scientists, and the global market for R&D products that has emerged at the end of the century.The volume raises many new questions for research by historians and sociologists of science and poses problems that are of concern both to scientists and science policy-makers.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 316 pp. Englisch.

Buch. Zustand: Neu. Neuware -Everyone carries a part of society on his shoulders; no one is relieved of his share of responsibility by others. And no one can find a safe way for himself if society is sweeping towards de struction. Therefore everyone, in his own interests, must thrust himself vigorously into the intellectual battle. No one can stand aside with unconcern: the interests of everyone hang on the result. Whether he chooses or not, every man is drawn into the great historical struggle, the decisive battle into which our 1 epoch has plunged us. his is the message of Ludwig von Mises. In the historical T battle of ideologies, Mises is a pivotal figure. With great courage and decisive effect he carried the banner of truth and freedom for others through a time of rising statism. Murray Rothbard is correct when he says, ' . . . if the world is ever to get out of its miasma of statism, or, indeed, if the economics profession is ever to return to a sound and correct development of economic analysis, both will have to abandon their contemporary bog and move to that high ground that Mises developed for us. ' 2 This collection of essays is both a restatement and extension of the major contributions of Mises in epistemology, history, econom ics, and political philosophy. Mises began constructing the high ground on the foundation provided by Carl Menger and Eugen von B6hm-Bawerk.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 356 pp. Englisch.

Buch. Zustand: Neu. Neuware -Continuous-time econometrics is no longer an esoteric subject although most still regard it as such, so much so that it is hardly mentioned in standard textbooks on econometrics. Thanks to the work done in the last 20 years, both the theoretical and the applied side are by now well developed. Methods of estimation have been theoretically elaborated and practically implemented through computer programs. Continuous-time macroeconometric models for different countries have been constructed, estimated and used. Being myself involved in these developments, it was with great pleasure that I accepted the invitation to organize a session on continuous-time econometrics in the context of the International Symposium on Economic Modelling (jointly organized by the University of Urbino and the book series International Studies in Economic Modelling, and co-sponsored by the Consiglio Nazionale delle Ricerche). The reaction of 'continuists' from all over the world was so enthusiastic that I was able to arrange two sessions, one on the theory and the other on the applications. The symposium was held in Urbino on 23-25 July 1990. The papers presented in Urbino have been revised in the light of the discussion at the symposium and the referees' comments. Hence, what is published here should become another standard reference in the field of continuous-time econometrics.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 292 pp. Englisch.

Buch. Zustand: Neu. Neuware -The aim of this book is to present the current state of the art of extracting natural products with near-critical solvents and to view the possibilities of further extensions of the technique. Relevant background theory is given but does not dominate the book. Carbon dioxide is the near-critical solvent used in most recent applications and inevitably receives prominence. In addition to general descriptions and reviews, the book contains three chapters by indus trial practitioners who describe in detail the operation of their processes and discuss the market for their products. Sections on the design of the pressure vessels and pumps required in these processes and on the acquisition of the data required for design are included. The costing of the processes is also discussed. There is good scope for combining a near-critical extraction step with other process steps in which the properties of near-critical solvents are utilised, for example as a reaction or crystallisation medium and a chapter is devoted to these important aspects. It is hoped that the work will be found to contain a great deal of specific information of use to those already familiar with this field. However the style of presentation and content is such that it will also be useful as an introduction. In particular it will be helpful to those wondering if this form of separation method has anything to offer for them, whether they are engineers, chemists or managers in industry, or in academic or research institutions. 340 pp. Englisch.

Buch. Zustand: Neu. Neuware -Polymers continue to play an ever increasing role in the modern world. In fact it is quite inconceivable to most people that we could ever have existed of the increased volume and variety of materials without them. As a result currently available, and the diversity of their application, characterisation has become an essential requirement of industrial and academic laboratories in volved with polymeric materials. On the one hand requirements may come from polymer specialists involved in the design and synthesis of new materials who require a detailed understanding of the relationship between the precise molecular architecture and the properties of the polymer in order to improve its capabilities and range of applications. On the other hand, many analysts who are not polymer specialists are faced with the problems of analysing and testing a wide range of polymeric materials for quality control or material specification purposes. We hope this book will be a useful reference for all scientists and techno or industrial laboratories, logists involved with polymers, whether in academic and irrespective of their scientific discipline. We have attempted to include in one volume all of the most important techniques. Obviously it is not possible to do this in any great depth but we have encouraged the use of specific examples to illustrate the range of possibilities. In addition numerous references are given to more detailed texts on specific subjects, to direct the reader where appropriate. The book is divided into II chapters.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 380 pp. Englisch.

Buch. Zustand: Neu. Neuware -In any study of hermit crabs, correct identification to species level is of considerable importance. Whereas a number of identification guides to this group have been published during the last 50 years, none can be considered comprehensive enough for identifying all species inhabiting the Northeastern Atlantic Ocean and Mediterranean sea. The present guide is the first of its kind to provide taxonomic keys to all known species from these regions. Detailed illustrations, synonyms, taxonomic descriptions and distributions are given for all species belonging to the Diogenidae and Paguridae; these families include the majority of the species. The various specialized terms used in hermit crab taxonomy are fully explained and illustrated and a comprehensive bibliography is provided to papers relevant to the regions.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 504 pp. Englisch.

Buch. Zustand: Neu. Neuware -In recent years there have been a number of catastrophic floods that have resulted in a tragic loss of life. These natural disasters highlight the need to further understand the occurrence phenomena, to improve forecasting techniques, and to develop procedures and contingency plans to minimise the flood impact.This volume contains contributions from the 3rd International Conference on Floods and Flood Management held in Florence in November 1992. The volume is timely and provides an important overview for engineers, scientists, managers and researchers of the latest developments in technology, analysis and management.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 616 pp. Englisch.

Buch. Zustand: Neu. Neuware -This book is designed to be of use to the reader in two different ways. First, it is intended to provide a general introduction to all aspects of iron chemistry for readers from a variety of different scientific backgrounds. It has been written at a level suitable for use by graduates and advanced undergraduates in chemistry and biochemistry, and graduates in physics, geology, materials science, metallurgy and biology. It is not designed to be a dictionary of iron compounds but rather to provide each user with the necessary tools and background to pursue their ,individual interests in the wide areas that are influenced by the chemistry of iron. To achieve this goal each chapter has been written by a contemporary expert active in the subject so that the reader will benefit from their individual insight. Although it is generally assumed that the reader will have an understanding of bonding theories and general chemistry, the book is well referenced so that any deficiencies in the reader's background can be addressed. The book was also designed as a general reference book for initial pointers into a scientific literature that is growing steadily as the understanding and uses of this astonishingly versatile element continue to develop. To meet this aim the book attempts some coverage of all aspects of the chemistry of iron, not only outlining what understanding has been achieved to date but also identifying targets to be aimed at in the future.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 324 pp. Englisch.

Buch. Zustand: Neu. Neuware -This is the second edition of an extremely important and well received book. The editor has brought together an international team of experts in the subject, producing a book which contains vital information on major aspects of this important subject. It should appear on the shelves of animal behaviourists, fish biologists and fisheries scientists.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 740 pp. Englisch.

Buch. Zustand: Neu. Neuware -One service mathematic;., has Jcndcml the 'Et moi, . ~ si j'avait su comment CD revcnir, human race. It has put COIDDlOJI SCIISC back je n'y scrais point allC.' whc:rc it belongs, on the topmost shell next Jules Verne to the dusty canister labc1lcd 'dilcardcd nOD- The series is divergent; tbcre(on: we may be sense'. Eric T. Bcll able to do something with it o. Hcavisidc Mathematics is a tool for thought. A highly necessary tooll in a world where both feedbaclt and non linearities abound. Similarly, all kinds of parts of mathematics serve as tools for other paJts and for other sciences. Applying a simple rewriting rule to the quote on the right above one finds such statements as: 'One service topology has rendered mathematical physics . .'; 'One service logic has rendered com puter science . .'; 'One service category theory has rendered mathematics . .'. All arguably true. And all statements obtainable this way form part of the raison d'etre of this series.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 762 pp. Englisch.

Buch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Oil is the lifeblood of the global economy, and its misuse carries the risk of heavy economic and environmental penalties. This book is a collection of essays bearing on economic growth and environmental concerns for a world that will continue to be dependent on oil throughout the next century. Topics include the outlook for petroleum demand and supply, the potential for alternatives to a petroleum-based economy, the costs of controlling automobile emissions, the environmental costs of moving oil by tanker and pipeline, and competition issues in the production and distribution of petroleum products. The wide range of topics reflects the many different ways in which petroleum and use affect the quality of our lives. The essays are the end results of an initiative by the University of California Energy Institute and reflect careful research into the costs and benefits of the petroleum economy. Together, they offer new insights into the critical task of living with oil, for today and for the future. 324 pp. Englisch.

Buch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The subject of liquid crystals and their use in electronic displays and in non-linear optical systems has become of tremendous importance during the last decade; and the incorporation of liquid crystal units into polymeric materials has led to a group of new materials with diverse properties. Some of these properties have been utilized in new products and some have yet to be used. Much published work has appeared that deals with specific materials or particular applications, and it was felt that a book was needed to examine and explain the underlying principles governing the diverse properties of these liquid crystal polymers, LCPs. The current work describes the diverse nature of LCPs, their synthesis, characterization, properties and finally their applications. It describes the manner in which liquid crystallinity or mesomorphism occurs in small molecules, monomer liquid crystals and polymer liquid crystals. Chapter 1 gives a classification of the various ways in which the meso gens may be connected to the polymer chains. Currently, the bulk of LCP material is based on main chain or longitudinal LCPs for use in engineering applications. The side chain or comb polymers are intended for use in electronics and opto-electronic systems and as surfactants. Many other variants and possibilities exist but their properties have not yet been fully studied or used. In this respect it is hoped that the current work will indicate future possibilities as well as discussing current opinion. v Preface vi Chapters 2 and 3 describe methods of characterizing the mesophases. 492 pp. Englisch.

Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The symposium In the next decades, agriculture will have to cope with an ever-increasing demand for food and raw basic materials on the one hand, and with the necessity to use resources without further degrading or exhausting the environment on the other hand, and all this within a dynamic framework of social and economic conditions. Intensification, sustainability, optimizing scarce resources, and climate change are among the key issues. Organized thinking about future farming requires forecasting of consequences of alternative ways to farm and to develop agriculture. The complexity of the problems calls for a systematic approach in which many disciplines are integrated. Systems thinking and systems simulation are therefore indispensable tools for such endeavours. About 150 scientists and senior research leaders participated in the symposium 'Systems Approaches for Agricultural Development' (SAAD) at the Asian Institute of Technology (AIT), Bangkok, Thailand, in December 1991. The symposium had the following objectives: - to review the status of systems research and modeling in agriculture, with special reference to evaluating their efficacy and efficiency in achieving research goals, and to their application in developing countries; - to promote international cooperation in modeling, and increase awareness of systems research and simulation. The symposium consisted of plenary sessions with reviews of major areas in systems approaches in agriculture, plus presentations in two concurrent sessions on technical topics of systems research. Subjects of studies were from tropical and temperate countries. 556 pp. Englisch.

Buch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The Integrated Services Digital Network (ISDN) represents the current position in about a hundred years of evolutionary growth of the worldwide telecommunications infrastructure. This evolution is by no means complete and the next few years will see the emergence of a 'Broad-band' ISDN as the next stage of evolutionary development. It is important to appreciate the evolutionary nature of the telecommunications infrastructure if one is to properly understand much of the thinking that lies behind the current ISDN proposals. This book therefore begins with a number of chapters devoted to a study of the various developments which have eventually led to the concept of an integrated digital network. These include the development of digital transmission of speech using PCM and the development of digital switching techniques based on stored program control. The book then turns to a consideration of those features of the existing telecommunications network which need to be modified in order to make ISDN a realizable practicality. Of particular importance is the digitization of transmission over the links between the user and the local exchange. Next we look at the current practice and proposals for ISDN based on the technology presently in use in the telephone network. Finally, we look at the proposals for a broadband ISDN likely to become widely available by the turn of the century. 144 pp. Englisch.

Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Recent developments in Pleistocene research have prompted the authors to produce this up-to-date, concise account of environmental changes during the past two million years. Well-illustrated and referenced, it possesses a unique position in the literature on Pleistocene events in the British Isles. 368 pp. Englisch.

Buch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The present book, Cases of Assessment in Mathematics Education, is one of two studies resulting from an ICMI Study Conference on Assessment in Mathematics Education and Its Effects. The book which is published in the series of ICMI Studies under the general editorship of the President and Secretary of ICMI is closely related to another study resulting from the same conference: Investigations into Assessment in Mathematics Education (Niss, 1992). The two books, although originating from the same sources and having the same editor, emphasize different aspects of assessment in mathematics education and can be read independently of one another. While the present book is devoted to presenting and discussing cases of assessment that are actually implemented, the other study attempts to critically analyze general and principal aspects of assessment. Naturally, the content of either book is enriched by the materials and perspectives provided by the other one. In order to put this book and its background into context, the nature and scope of the ICMI studies are outlined briefly below. 230 pp. Englisch.