springer springer apr 1990 (211 risultati)

Buch. Condizione: Neu. Neuware - Definition of the barrier The interstitial fluid (rSF) of the brain is separated from the blood by the blood-brain barrier (BBB). This barrier must not be thought of as a single entity or as an absolute restriction to all molecules, but as a multiple structure located at several sites within the brain. The first of these interfaces is located at the endothelium of the brain capillaries. Secondly there is a potential site for interchange on the outer linings of the brain between the dura and the arachnoid membranes. Thirdly, there are the choroid plexuses and the cerebrospinal fluid (CSF) which is in contact with the very permeable internal ependymal lining of the brain (Figure 1. 1). Finally there are areas of the brain which lack a blood-brain barrier. These areas constitute the circumventricu lar organs and have leaky capillaries with a barrier at the ependyma which limits the spread of molecules from those regions (Figure 1. 2). Each of these BBB sites has its own characteristic permeability and transport functions. We will now consider the properties of each of these barrier sites between the blood and the brain. THE CEREBRAL CAPILLARY ENDOTHELIUM Morphology This interface has both the largest surface area and the shortest path length between the blood and the brain rSF. The cerebral capillaries, which at first sight seem little different from the rest of the systemic circulation, are in fact unique to the brain.

Buch. Condizione: Neu. Neuware - Mobile robots are playing an increasingly important role in our world. Remotely operated vehicles are in everyday use for hazardous tasks such as charting and cleaning up hazardous waste spills, construction work of tunnels and high rise buildings, and underwater inspection of oil drilling platforms in the ocean. A whole host of further applications, however, beckons robots capable of autonomous operation without or with very little intervention of human operators. Such robots of the future will explore distant planets, map the ocean floor, study the flow of pollutants and carbon dioxide through our atmosphere and oceans, work in underground mines, and perform other jobs we cannot even imagine; perhaps even drive our cars and walk our dogs. The biggest technical obstacles to building mobile robots are vision and navigation-enabling a robot to see the world around it, to plan and follow a safe path through its environment, and to execute its tasks. At the Carnegie Mellon Robotics Institute, we are studying those problems both in isolation and by building complete systems. Since 1980, we have developed a series of small indoor mobile robots, some experimental, and others for practical applicationr Our outdoor autonomous mobile robot research started in 1984, navigating through the campus sidewalk network using a small outdoor vehicle called the Terregator. In 1985, with the advent of DARPA's Autonomous Land Vehicle Project, we constructed a computer controlled van with onboard sensors and researchers. In the fall of 1987, we began the development of a six-legged Planetary Rover.

Buch. Condizione: Neu. Neuware - Session 1 General Aspects of Child Nutrition in South East Asia.- Childhood malnutrition in South East Asia: Concepts and strategies for control.- Vitamin A problems in South East Asia with special reference to its impact on child health.- Infection and malnutrition.- The pattern of feeding and the nutritional status of infants and children in Indonesia.- Discussion.- Session 2 Nutrition of Pregnant Mother and Infant.- The East Java pregnancy study: Effect of prenatal energy supplementation on mother and infant.- Weaning foods in infant nutrition.- Ethnic differences in breast-feeding among well-to-do Singaporeans.- A prospective study of growth and nutrition of Aboriginal children from birth to two years in North-West Australia.- Discussion.- Session 3 Early Childhood Malnutrition and its Late Effects, with Emphasis on Prevention.- Selective review of studies on the behavioural effects of childhood malnutrition.- Protein-energy malnutrition in Papua New Guinea: Its functional significance.- Mother and child health at village level: The effect of the mother and child card.- Discussion.- Session 4 Nutritional Deficiencies in Children.- Iron deficiency anemia and its problems.- Iron deficiency and infant development.- Infection and immunity of vitamin A and iron deficient children.- Supplementary feeding in childhood diarrhea.- Discussion.- Session 5 Diarrhea and Malabsorption in Children.- Diarrhea, growth and feeding practices.- Dietary management of acute diarrhea: A scientific basis.- Chronic diarrhea and its management: Breast-feeding and short chain peptide.- Breath hydrogen test for lactose malabsorption in Chinese children and infants.- Discussion.- Session 6 Medical Teaching on Child Nutrition.- Integrated medical teaching curriculum on child nutrition.- Discussion.- Closing Remarks.- Index of Subjects.

Buch. Condizione: Neu. Neuware - As we stated in our message in the book of abstracts for this congress, we have planned the programme over a long period with one clear objective: to present musculoskeletal medicine as an integral part of orthodox medical practice, rather than as something alternative or complementary. To this end we have based the plenary programme as far as possible on accepted epidemiological, anatomical, physiological and pathological phenomena. Scientifically well-validated material must surely be the base upon which any viable musculoskeletal medicine practice may be built. While we have chosen the plenary programme to reflect musculoskeletal medicine as a part of orthodoxy, we realize and wish to emphasize that there is a wealth of original work that has been carried out within FIMM. For this reason our first innovation for the congress was to invite members of the scientific advisory committee to select for a 'directed' programme the three topics they felt were of greatest current importance. The results of this democratic procedure was the choice of the sacroiliac joint, a comparison of manual therapies and biomechanics. This illustrates the broad direction of present thinking within FIMM.

Buch. Condizione: Neu. Neuware - Research activity on intermediate filaments (IF) has increased dramatically over the past decade. For the most part, this surge of interest is due to their identification as ubiquitous constituents of the cytoskeleton and karyoskeleton (nuclear matrix) of eukaryotic cells and the fact that we know very little regarding their functions. In sharp contrast to the other major cytoskeletal systems, microfilaments and microtubules, IF exhibit a high degree of heterogeneity with regard to their protein subunit composition. Indeed, one can only marvel at the number of different IF polypeptides, their associated proteins (IFAP) and, consequently, the number of genes involved in encoding the multiple constituents of the various IF networks found in different cell types. The chapters in this book demonstrate how various experimental approaches involv ing cellular, molecular, biochemical, and immunological methods have been utilized to generate information regarding the structure and function of IF. To this end, we have gathered together chapters from experts in the major fields of IF research. In each chapter, the authors have combined reviews of the available scientific literature with their own ideas on current and future directions for IF research. The chapters have been divided into five major sections which are concerned with the subcellular organization of IF, the molecular structure of IF, the differential expression of IF genes, descriptions of associ ated proteins involved in the intracellular organization of IF, and finally an analysis of the changes seen in IF in pathological conditions.

Buch. Condizione: Neu. Neuware - The predecessor to this book was A Guide to the Laboratory Use of the Squid Loligo pealei published by the Marine Biological Laboratory, Woods Hole, Massachusetts in 1974. The revision of this long out of date guide, with the approval of the Marine Biological Laboratory, is an attempt to introduce students and researchers to the cephalopods and particularly the squid as an object of biological research. Therefore, we have decided to expand on its original theme, which was to present important practical aspects for using the squid as experimental animals. There are twenty two chapters instead of the original eight. The material in the original eight chapters has been completely revised. Since more than one method can be used for accomplishing a given task, some duplication of methods was considered desirable in the various chapters. Thus, the methodology can be chosen which is best suited for each reader's requirements. Each subject also contains a mini-review which can serve as an introduction to the various topics. Thus, the volume is not just a laboratory manual, but can also be used as an introduction to squid biology. The book is intended for laboratory technicians, advanced undergraduate students, graduate students, researchers, and all others who want to learn the purpose, methods, and techniques of using squid as experimental animals. This is the reason why the name has been changed to its present title. Preceding the chapters is a list of many of the abbreviations, prefixes, and suffixes used in this volume.

Buch. Condizione: Neu. Neuware - Kants transzendentale Deduktion in Leibnizischer Perspektive.- I Der intellectus ipse.- II Apprehension und Reproduktion.- III Die reine transzendentale Apperzeption.- IV Objektivierung und Synthese.- V Die Lehre von den 'petites perceptions'.- VI Grundzüge der Leibnizischen Monadenlehre.- VII Kants Begriff der reinen transzendentalen Apperzeption als Abwandlung der Leibnizischen Ich - Konzeption.- VIII Die Leistung der Vereinheitlichung und die geleistete Einheit.- IX Die Intentionalitat des Bewußtseins als Grenze der Kantischen Konzeption.- Beilage I Der Begriff des Bewusstseins bei Kant und Husserl.- Beilage II A Study of Kant's Conception of the Human Mind.- Beilage III The Leibniz in Kant.- Beilage IV Aron Gurwitsch zu Kant in veröffentlichten Schriften.- Namensregister.

Buch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -These notes are based on lectures presented during the seminar on ' Asymptotic Statistics' held at SchloB Reisensburg, Gunzburg, May 29-June 5, 1988. They consist of two parts, the theory of asymptotic expansions in statistics and probabilistic aspects of the asymptotic distribution theory in nonparametric statistics. Our intention is to provide a comprehensive presentation of these two subjects, leading from elementary facts to the advanced theory and recent results. Prospects for further research are also included. We would like to thank all participants for their stimulating discussions and their interest in the subjects, which made lecturing very pleasant. Special thanks are due H. Zimmer for her excellent typing. We would also like to take this opportunity to to express our thanks to the Gesellschaft fur mathematische Forschung and to the Deutsche Mathematiker Vereinigung, especially to Professor G. Fischer, for the opportunity to present these lectures and to the Birkhauser Verlag for the publication of these lecture notes. R. Bhattacharya, M. Denker Part I: Asymptotic Expansions in Statistics Rabi Bhattacharya 11 1. CRAMER-EDGEWORTH EXPANSIONS Let Q be a probability measure on (IRk, B'), B' denoting the Borel sigmafield on IR'. Assume that the s - th absolute moment of Q is finite, (1.1) P. := J II x lis Q(dx) 00, for some integer s;::: 3, and that Q is normalized, (1.2) J x(i)Q(dx) = 0 (1 ~ i ~ k), J x(i)x(j)Q(dx) = Dij (1 ~ i,j ~ k). 122 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -A central problem in algebraic topology is the calculation of the values of the stable homotopy groups of spheres +\*S. In this book, a new method for this is developed based upon the analysis of the Atiyah-Hirzebruch spectral sequence. After the tools for this analysis are developed, these methods are applied to compute inductively the first 64 stable stems, a substantial improvement over the previously known 45. Much of this computation is algorithmic and is done by computer. As an application, an element of degree 62 of Kervaire invariant one is shown to have order two. This book will be useful to algebraic topologists and graduate students with a knowledge of basic homotopy theory and Brown-Peterson homology; for its methods, as a reference on the structure of the first 64 stable stems and for the tables depicting the behavior of the Atiyah-Hirzebruch and classical Adams spectral sequences through degree 64. 344 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This volume presents the proceedings of a conference on programming and programming languages. It contains original research contributions addressing fundamental issues and important developments in the design, specification and implementation of programming languages and systems. Topics include: - Program development: specification, methodology, tools, environments; - Programming language concepts: types, data abstraction, parallelism, real-time; - Language implementation techniques: compilers, interpreters, abstract machine design, optimization; - Programs as data objects: abstract interpretation, program transformation, partial evaluation; - Programming styles: imperative, functional, predicative, object-oriented. 452 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -General introduction.- Installation of the SIL system.- Getting started.- Building models.- Numerical methods.- The SIL language.- The SIL system. 204 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Dieses Arbeitsbuch wendet sich an Studienanfänger der Rechtswissenschaft, es ist jedoch auch für die juristische Ausbildung von Wirtschaftswissenschaftlern an Universitäten und Fachhochschulen geeignet. Es bietet in einem integrierten Kurs eine Einarbeitung in das juristische Denken und Arbeiten auf dem Gebiet des Zivilrechts. Während herkömmliche Anfängerliteratur entweder auf die Stoffdarstellung in lehrbuchartiger Form oder aber auf die Wiedergabe von Rechtsfällen und Lösungen ausgerichtet sind, hebt das vorliegende Buch diese Trennung auf, indem Stofferarbeitung und Anwendung des erlernten Wissens in Fallösungen integriert werden. Die enge Verzahnung von Lehrtext und Anwendung im Gutachten wird unterstützt durch zahlreiche Tests, Originalklausuren und -hausarbeiten. Für Arbeitsgemeinschaftsleiter oder Tutoren enthält das Buch Hinweise und Material wie Diskussionsthemen, Rollenspiele, Besprechungsklausuren sowie ein Planspiel. Die ausführlichen Lösungen und Lösungshinweise ermöglichen dem Benutzer eine Überprüfung seiner Lernfortschritte und machen das Buch somit auch zu einem wertvollen Hilfsmittel beim Selbststudium. 160 pp. Deutsch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Europe.- Canada.- The Far East.- Australasia.- The Middle East and Africa.- Latin America.- Parent Company, Division, Subsidiary and Affiliate Index.- Geographical Index.- Industry Index.- Individual¿s Name Index. 664 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -A new procedure for the maximum-likelihood estimation of dynamic econometric models with errors in both endogenous and exogenous variables is presented in this monograph. A complete analytical development of the expressions used in problems of estimation and verification of models in state-space form is presented. The results are useful in relation not only to the problem of errors in variables but also to any other possible econometric application of state-space formulations. 132 pp. Englisch.

Buch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -John D. Kasarda By all accounts, the United States has led the world in job creation. During the past 20 years, its economy added nearly 40 million jobs while the combined European Economic Community added none. Since 1983 alone, the U. S. gener ated more than 15 million jobs and its unemployment rate dropped from 7. 5 percent to approximately 5 percent while the unemployment rate in much of western Europe climbed to double digits. Even Japan's job creation record pales in comparison to the United States'. with its annual employment growth rate less than half that of the United States over the past 15 years (0. 8 percent vs. 2 percent. ) Yet, as the U. S. economy has been churning out millions of jobs annually, con flicting views and heated debates have emerged regarding the quality of these new jobs and its implications for standards of living and U. S. economic competi tiveness. Many argue that the 'great American job machine' is a 'mirage' or 'grand illusion. ' Rather than adding productive, secure, well-paying jobs, most new employment, critics contend, consists of poverty level, dead-end, service sector jobs that contribute little or nothing to the nation's productivity and inter national competitiveness. Much of the blame is placed on Reagan-Bush policies that critics say undermine labor unions, encourage wasteful corporate restructur ing, foster exploitative labor practices, and reduce fiscal support for education and needed social services. 152 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Assume one has to estimate the mean J x P( dx) (or the median of P, or any other functional t;;(P)) on the basis ofi.i.d. observations from P. Ifnothing is known about P, then the sample mean is certainly the best estimator one can think of. If P is known to be the member of a certain parametric family, say {Po: {) E e}, one can usually do better by estimating {) first, say by {)(n)(.~.), and using J XPo(n)(;r.) (dx) as an estimate for J xPo(dx). There is an 'intermediate' range, where we know something about the unknown probability measure P, but less than parametric theory takes for granted. Practical problems have always led statisticians to invent estimators for such intermediate models, but it usually remained open whether these estimators are nearly optimal or not. There was one exception: The case of 'adaptivity', where a 'nonparametric' estimate exists which is asymptotically optimal for any parametric submodel. The standard (and for a long time only) example of such a fortunate situation was the estimation of the center of symmetry for a distribution of unknown shape. 120 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The analysis of deterministic chaos is currently an active field in many branches of research. Mathematically all nonlinear dynamical systems with more than two degrees of freedom can generate chaos, becoming unpredictable over a longer time scale. The brain is a nonlinear system par excellence. Accordingly, the concepts of chaotic dynamics have found, in the last five years, an important application in research on compound electrical activity of the brain. The present volume seeks to cover most of the relevant studies in the newly emerging field of chaotic attractors in the brain. This volume is essentially a selection and reorganization of contri butions from the first two volumes in the Springer Series in Brain Dynamics, which were based on conferences held in 1985 and 1987 in Berlin. It also includes (a) a survey of progress in the recording of evoked oscillations of the brain both at the cellular and EEG levels and (b) an agenda for research on chaotic dynamics. Although the first publications pointing out evidence of chaotic behavior of the EEG did not appear until the beginning of 1985, the presence of the pioneering scientists in this field gave the participants at the first conference (volume 1) a strong impulse toward this field. For me, as conference organizer, having been for a long time active in nonlinear EEG research, the integration of this topic was self-evident; however, the enthusiasm of the conference participants was greater than expected. 188 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -These tables represent a new, revised and enlarged version of the previously published book by this author, entitled 'Tabellen zur Fourier Transformation' (Springer Verlag 1957). Known errors have been correc ted, apart from the addition of a considerable number of new results, which involve almost exclusively higher functions. Again, the follow ing tables contain a collection of integrals of the form J f(x)cos(xy)dx Fourier Cosine Transform (Al o (B) J f(x)sin(xy)dx Fourier Sine Transform o (C) ge(y) = J f(x)eixYdx Exponential Fourier Transform -00 Clearly, (A) and (B) are special cases of (C) if f(x) is respec tively an even or an odd function. The transform parameter y in (A) and (B) is assumed to be positive, while in (C) negative values are also included. A possible analytic continuation to complex parameters y should present no difficulties. In some cases the result function g(y) is given over a partial range of y only. This means that g(y) for the remaining part of y cannot be given in a reasonably simple form. Under certain conditions the following inversion formulas for (A), (B), (C) hold: (A' ) f(x) = 2 J g (y)cos(xy)dy 11 0 c 2 J (B') f (x) gs(y)sin(xy)dy 11 0 -1 00 -ix (C' ) f(x) = (211) J ge(y)e Ydy In the following parts I, II, III tables for the transforms (A), (B) and (C) are given. 272 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -One ofthe most important aspects in research fields where mathematics is 'applied is the construction of a formal model of a real system. As for structural relations, graphs have turned out to provide the most appropriate tool for setting up the mathematical model. This is certainly one of the reasons for the rapid expansion in graph theory during the last decades. Furthermore, in recent years it also became clear that the two disciplines of graph theory and computer science have very much in common, and that each one has been capable of assisting significantly in the development of the other. On one hand, graph theorists have found that many of their problems can be solved by the use of com puting techniques, and on the other hand, computer scientists have realized that many of their concepts, with which they have to deal, may be conveniently expressed in the lan guage of graph theory, and that standard results in graph theory are often very relevant to the solution of problems concerning them. As a consequence, a tremendous number of publications has appeared, dealing with graphtheoretical problems from a computational point of view or treating computational problems using graph theoretical concepts. 296 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This is a personal but authoritative guide written by two experienced clinicians for those practitioners and hospital specialists faced occasionally with a neurological problem in an elderly patient. The authors give practical guidance in the diagnosis and management of common neurological problems in the elderly: problems such as 'confusion' and dementia, gait disturbance, visual problems, incontinence, disturbance of consciousness and loss of use in the hands. The problem-oriented, clinical approach is tailored to the needs of specialists looking for supplements to the comprehensive texts that describe classical history-taking and examination methods but, in many cases, do not help solve the problems encountered in everyday practice. Kein umfassendes Lehrbuch - wohl aber ein praktischer Führer bei der Diagnose und Behandlung allgemeiner Probleme der Klinischen Neurologie des alternden Menschen. 164 pp. Englisch.

Buch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Poultry, but more especially game, is a subject close to my heart. Why Wellfor the last eight years or so I have been, and indeed still am, a keen shooting man. Shooting for sport, I know, is a subject many people find disagreeable, and the an- bloodsports league is a powerful lobby. Nevertheless, it is a pastime that is becoming more and more popular as years go by and one I hope to continue enjoyingfor many years to come. Without it not only would a part of our history and culture be lost, but our wildlife would become threatened, wildlife and habitat conservancy a thing of the past, and the countryside turned into even greater areas of wheat and rape deserts. No one would know the pleasures of the first woodcock or the first English partridge of the season. Imagine a cold winter's morning: a thin covering of snow, the grey skies heavy with more, ready to discharge their cargo without notice. Pick up the gun, call the dogs and set out across the fields. Silence prevails. In the distance, a handful of pigeons are heading this way. Crouching in the hedgerow I wait for them to come within range. Pigeon terrine, pigeon salad with a few toasted kernels, all the menu ideas running through my head, but to no avail, I've been spotted. Truffle and Bella (my dogs) are worrying a patch of brambles, not too keen on going in. Bella scrambles in, belly flat to the ground. 236 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -InhaltsangabeInstilling professionalism in software engineers.- Establishing Motorola-university relationships: A software engineering training perspective.- Technology transfer: The design, development, and implementation of a process.- An undergraduate curriculum in software engineering.- An undergraduate programme in software engineering.- An undergraduate software engineering major embedded in a computer systems engineering degree.- of software engineering concepts in an Ada-based introductory computer science course.- Teaching reuse early.- A state-of-the-art CS undergraduate lab.- - StarLite - A software education laboratory.- Modeling teamwork in an academic environment.- An experience of teaching concurrency: Looking back, looking forward.- Use-perspective unit documentation.- Graduate programs in software engineering.- Industry-academic cooperation in software engineering training and continuing education.- An emerging vision of software engineering.- Position Paper: Industry-academic cooperation in software engineering training and education. 176 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The present volume is the third in a series of VDM Symposia Proceedings. VDM, the Vienna Development Method, is a formal method for software engineering, Z refers to Zermelo, a mathematician whose name is associated with set theory. Many computing science, programming and software engineering proceedings are published regularly. The ones by VDM Europe have the distinguished mark that they are concerned with bringing real theory to apply to real programming. In Europe, there is very much interest in methodology, semantics and techniques, that is, in understanding how we build and what it is that we are building. The papers of these proceedings basically fall into four major groups: Applications, Methodology, Formalisations, and Foundations. The Methodology group has been further subdivided into five areas: Specification Methodology, Design Methodology, Modularity, Object Orientedness, and Processes, Concurrency and Distributed Systems. 604 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The Nordic Conference on Advanced Information Systems Engineering (CAiSE) is an annual international conference for users, developers and researchers of information systems technology and methodology. A distinctive characteristic of the CAiSE conference series is the objective to appeal to advanced practitioners as well as to researchers, and to promote communication between the two groups. In this second CAiSE conference, the program was divided into two types of sessions that were not run in parallel: Technical Paper sessions, with formally reviewed technical papers, and Practice and Experience sessions, with invited speakers and panel discussions. The proceedings include the formally reviewed technical papers and abstracts of the invited presentations. The technical papers present important international (mainly European) work in Information Systems Engineering within such areas as conceptual modelling, prototyping, requirements engineering, design support, software process modelling, tool design, and tool experiences. The abstracts of invited speakers' presentations give an indication of current best industrial practice. 408 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Demography relates observable facts about individuals to the dynamics of populations. If the dynamics are linear and do not change over time, the classical theory of Lotka (1907) and Leslie (1945) is the central tool of demography. This book addresses the situation when the assumption of constancy is dropped. In many practical situations, a population will display unpredictable variation over time in its vital rates, which must then be described in statistical terms. Most of this book is concerned with the theory of populations which are subject to random temporal changes in their vital rates, although other kinds of variation (e. g. , cyclical) are also dealt with. The central questions are: how does temporal variation work its way into a population's future, and how does it affect our interpretation of a population's past. The results here are directed at demographers of humans and at popula tion biologists. The uneven mathematical level is dictated by the material, but the book should be accessible to readers interested in population the ory. (Readers looking for background or prerequisites will find much of it in Hal Caswell's Matrix population models: construction, analysis, and in terpretation (Sinauer 1989) ). This book is in essence a progress report and is deliberately brief; I hope that it is not mystifying. I have not attempted to be complete about either the history or the subject, although most sig nificant results and methods are presented. 160 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Stochastic Petri nets: An elementary introduction.- Improving the efficiency of the analysis of DSPN models.- Synchronized elementary net systems.- Descriptive and analytical process algebras.- P/T-systems as abstractions of C/E-systems.- The semantics of capacities in P/T nets.- Petri net tool overview 1989.- Equivalence transformations of PrT-Nets.- A reduction theory for coloured nets.- Optimizing microprograms for recurrent loops on pipelined architectures using timed Petri nets.- S-CORT¿: A method for the development of electronic payment systems.- Timed Petri nets and application to multi-stage production systems.- Petri net systems and their closure properties.- Occam and the transputer.- About the concurrent behaviour of EN systems: Definability and closure results.- Petri nets and flexible manufacturing.- Some properties of timed nets under the earliest firing rule.- A comparative study of different techniques for semi-flows computation in place/transition nets.- Elementary net systems and dynamic logic.- Representation of a swapping class by one net.- Design methods based on nets.- CEDISYS compositional distributed systems state of the art, research goals, references. 536 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book springs from a conference held in Stockholm in May June 1988 on Culture, Language and Artificial Intelligence. It assembled more than 300 researchers and practitioners in the fields of technology, philosophy, history of ideas, literature, lin guistics, social science, etc. It was an initiative from the Swedish Center for Working Life, based on the project AI-Based Systems and the Future of Language, Knowledge and Responsibility in Professions within the COST 13 programme of the European Commission. Participants in the conference, or in some cases researchers related to its aims, were chosen to contribute to this book. It was preceded by Knowledge, Skill and Artificial Intelligence (ed. B. G6ranzon and 1. Josefson, Springer-Verlag, London, 1988) and will be followed by Dialogue and Technology (ed. M. Florin and B. Goranzon, Springer-Verlag, London, 1990). The contributors' thinking in this field varies greatly; so do their styles of writing. For example: contributors have varied in their choice of 'he' or 'he/she' for the third person. No distinction is intended but chapters have been left with the original usage to avoid extensive changes. Similarly, individual contributor's preferences as to notes or references lists have been followed. We want to thank our researcher Satinder P. Gill for excellent work with summaries and indexes, and Sandi Irvine of Springer Verlag for eminent editorial work. 296 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -1 Introduction.- 2 Mathematical framework.- 3 Formal model of visualization.- 4 Graphical nucleus.- 5 Implementation of a graphical nucleus.- 6 Extending a graphical nucleus.- 7 Conclusion. 116 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book is directed at advanced undergraduate and postgraduate students-and their teachers-who are involved in those areas of cell biology which require a basic knowledge of cytoskeletal structure, parti cularly with respect to cell motility. It contains a core of basic information on the cytoskeleton and focuses especially on its functional aspects, from the swimming of spermatozoa to the crawling of cultured cells across their culture dish; from the transport of vesicles and organelles along nerve axons, to the orderly segregation of chromosomes at mitosis. Cytoskeleton research spans a wide range of scientific disciplines. It is as important for students or research workers investigating, for example, the deposition of the higher plant cell wall to have easy access to a core of basic information regarding microtubules as it is for someone interested in endocytosis and the fate of cell surface receptors. The authors are involved in the teaching of the cytoskeleton and cell motility at all levels of undergraduate study at University College London, but each has a research interest in different aspects of the subject: TMP in amoeboid locomotion, CAK in gliding motility and JSH in cilia, flagella and mitosis. 216 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -A central problem in algebraic topology is the calculation of the values of the stable homotopy groups of spheres +\*S. In this book, a new method for this is developed based upon the analysis of the Atiyah-Hirzebruch spectral sequence. After the tools for this analysis are developed, these methods are applied to compute inductively the first 64 stable stems, a substantial improvement over the previously known 45. Much of this computation is algorithmic and is done by computer. As an application, an element of degree 62 of Kervaire invariant one is shown to have order two. This book will be useful to algebraic topologists and graduate students with a knowledge of basic homotopy theory and Brown-Peterson homology; for its methods, as a reference on the structure of the first 64 stable stems and for the tables depicting the behavior of the Atiyah-Hirzebruch and classical Adams spectral sequences through degree 64.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 344 pp. Englisch.