springer nov 1978 (66 results)

Taschenbuch. Condition: Neu. Neuware - biological attributes of the three species according to the sequence in which they invade successively as a conse Studies on sample plots in Halimione portulacoides com munities show that environmental disturbances, either quence of environmental disturbance. It can therefore be concluded that for understanding this mechanism in the natural or induced by man, start a sequence of partly salt-marsh ecosystem a thorough study on the functioning overlapping density maxima in Suaeda maritima, Aster of these and other relevant biological attributes in the local tripolium and Puccinellia maritima successively, before the populations is essential. original Halimione community totally recovers. When Returning to the basic questions put in the introduction succession time before recovering is long enough, there are it is concluded that: tendencies in redundancy of this sequence stressing the unilinear character of the succession. Minor environmental a) There exist orderly and predictable succession patterns in the investigated salt-marsh vegetation. impacts induce a longer time-lag period of the Suaeda b) Following occasional disturbances, whatever these may density maximum, suggesting threshold values of these impacts for the species to maintain minimal population be, the vegetation recovers via a sequence of overlapping interim species populations showing a unilinear or obliga densities or to become locally extinct. This sequence of tory (Hom 1976) succession pattern.

Taschenbuch. Condition: Neu. Neuware - This book is concerned with control issues in complex industrial organizations. The word control is used here in a rather wide sense, including decision making, coordination and planning as well as activities such as the design and implementation of organizational structures or computerized information systems. There are various ways of defining complexity; here we use this term to indicate that the organizations in question consist of many sub organizations which are operationally interdependent but at the same time have a fair degree of independence of control. The control of the interactions between these suborganizations through coordination will be a key issue in this book. The discussion will be confined to industrial organizations; our results are only applicable to a limited extent to other types of organizations such as universities, hospitals or government offices. The main contribution we intend to make in this book is the development of a system oj concepts on control and coordination in industrial organizations which can be used in the design of organizational control structures such as planning systems, information systems or relations between positions or departments. Rather eclectic use has been made of various scientific disCiplines in the development of this conceptual system with some bias towards the use of system theory and cybernetics. The book is intended for professional workers in the field of 'organizational control technology', such as automation and .organization specialists in complex organizations and workers in the related disCiplines at University.

Buch. Condition: Neu. Neuware - In 1936, G. Birkhoff and J. v. Neumann published an article with the title The logic of quantum mechanics'. In this paper, the authors demonstrated that in quantum mechanics the most simple observables which correspond to yes-no propositions about a quantum physical system constitute an algebraic structure, the most important proper ties of which are given by an orthocomplemented and quasimodular lattice Lq. Furthermore, this lattice of quantum mechanical proposi tions has, from a formal point of view, many similarities with a Boolean lattice L8 which is known to be the lattice of classical propositional logic. Therefore, one could conjecture that due to the algebraic structure of quantum mechanical observables a logical calculus Q of quantum mechanical propositions is established, which is slightly different from the calculus L of classical propositional logic but which is applicable to all quantum mechanical propositions (C. F. v. Weizsacker, 1955). This calculus has sometimes been called 'quan tum logic'. However, the statement that propositions about quantum physical systems are governed by the laws of quantum logic, which differ from ordinary classical logic and which are based on the empirically well-established quantum theory, is exposed to two serious objec tions: (a) Logic is a theory which deals with those relationships between various propositions that are valid independent of the content of the respective propositions. Thus, the validity of logical relationships is not restricted to a special type of proposition, e. g. to propositions about classical physical systems.

Buch. Condition: Neu. Neuware.

Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -On sampling distributions.- The jackknife.- M-estimators.- Open avenues. 140 pp. Englisch.

Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Reflections on the legitimate deck problem.- Some extremal problems on families of graphs and related problems.- Integral properties of combinatorial matrices.- A class of three-designs.- Isomorphic factorisations III: Complete multipartite graphs.- Biplanes and semi-biplanes.- Near-self-complementary designs and a method of mixed sums.- Recent progress and unsolved problems in dominance theory.- On the linear independence of sets of 2q columns of certain (1, 1) matrices with a group structure, and its connection with finite geometries.- The doehlert-klee problem: Part I, statistical background.- On the cayley index of a group.- A survey of extremal (r, )-systems and certain applications.- On the enumeration of certain graceful graphs.- Fixing subgraphs of Km,n.- Hadamard equivalence.- A note on equidistant permutation arrays.- The combinatorics of algebraic graph theory in theoretical physics.- Graphs, groups and polytopes.- Decompositions of complete symmetric digraphs into the four oriented quadrilaterals.- Brick packing.- Colour symmetry in crystallographic space groups.- Generation of a frequency square orthogonal to a 10ż0 latin square.- Factorization in the monoid of languages.- On graphs as unions of eulerian graphs.- The analysis of colour symmetry.- Computing automorphisms and canonical labellings of graphs.- On a result of bose and shrikhande.- Further results on a problem in the design of electrical circuits.- Transversals and finite topologies.- Asymptotic number of self-converse oriented graphs.- Some correspondences involving the schrżder numbers and relations.- A computer listing of hadamard matrices.- A class of codes generated by circulant weighing matrices.- An application of maximum-minimum distance circuits on hypercubes.- Decompositions of graphs and hypergraphs.- Some extremal problems in combinatorial geometry.- Distance-regular graphs.- A note on baxter's generalization of the temperley-lieb operators.- Autocorrelation of (+1, 1) sequences.- Triangles in labelled cubic graphs.- Problems. 368 pp. Englisch.

Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Bases des algżes de lie libres.- Bissections des monożs libres.- Factorisations des monożs libres et familles basiques des algżes de lie libres. 136 pp. Französisch.

Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The five essays in this work attempt in interpretive and original ways to further the common field of investigation of man in the life-world. Richard Zaner in his examination of the multi-level approach of the social sciences to the social order points us toward essences and the manner in which they are epistemically understood. By contrasting the work of the later Durkheim with that of Husserl, Edward Tiryakian is able to suggest a commonality of endeavor between them. Paul Ricoeur, after phenomenologically distinguishing three concepts of ideology, examines the supposed conflict between science and ideology and its resolution through a hermeneutics of historical understanding. Maurice N at anson in his discussion of the problem of anonymity reflects on both the sociological givenness of the world and its phenomenological reconstruction, showing the necessary interrelationship of both prior ities. Fred Dallmayr, after a presentation of the state of validation in the social sciences and their problems in attempting to ground them selves either in regard to logical positivism or phenomenology, refers us to the perspective of Merleau-Ponty concerning the relationship of cognition and experience. 120 pp. Englisch.

Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -In any definition of terms, Dutch literature must be taken to mean all literature written in Dutch, thus excluding literature in Frisian, even though Friesland is part of the Kingdom of the Netherlands, in the same way as literature in Welsh would be excluded from a history of English literature. Simi larly, literature in Afrikaans (South African Dutch) falls outside the scope of this book, as Afrikaans from the moment of its birth out of seventeenth-century Dutch grew up independently and must be regarded as a language in its own right. . Dutc:h literature, then, is the literature written in Dutch as spoken in the Kingdom of the Netherlands and the so-called Flemish part of the Kingdom of Belgium, that is the area north of the linguistic frontier which runs east-west through Belgium passing slightly south of Brussels. For the modern period this definition is clear anough, but for former times it needs some explanation. What do we mean, for example, when we use the term 'Dutch' for the medieval period In the Middle Ages there was no standard Dutch language, and when the term 'Dutch' is used in a medieval context it is a kind of collective word indicating a number of different but closely related Frankish dialects. The most important of those were the dialects of the duchies of Limburg and Brabant, and of the counties of Flanders and Holland. 416 pp. Englisch.

Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware 168 pp. Englisch.

Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -In many biological models it is necessary to allow the rates of change of the variables to depend on the past history, rather than only the current values, of the variables. The models may require discrete lags, with the use of delay-differential equations, or distributed lags, with the use of integro-differential equations. In these lecture notes I discuss the reasons for including lags, especially distributed lags, in biological models. These reasons may be inherent in the system studied, or may be the result of simplifying assumptions made in the model used. I examine some of the techniques available for studying the solution of the equations. A large proportion of the material presented relates to a special method that can be applied to a particular class of distributed lags. This method uses an extended set of ordinary differential equations. I examine the local stability of equilibrium points, and the existence and frequency of periodic solutions. I discuss the qualitative effects of lags, and how these differ according to the choice of discrete or distributed lag. The models studied are drawn from the population dynamiCS of single species (logistic growth, the chemostat) and of interacting pairs of species (predation, mutualism), from cell population dynamiCS (haemopoiesis) and from biochemical kinetics (the Goodwin oscillator). The last chapter is devoted to a population model employing difference equations. All these models include non-linear terms. 128 pp. Englisch.

Taschenbuch. Condition: Neu. This item is printed on demand - Print on Demand Titel. Neuware -On sampling distributions.- The jackknife.- M-estimators.- Open avenues.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 140 pp. Englisch.

Buch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book is divided into two parts. The first one is purely algebraic. Its objective is the classification of quadratic forms over the field of rational numbers (Hasse-Minkowski theorem). It is achieved in Chapter IV. The first three chapters contain some preliminaries: quadratic reciprocity law, p-adic fields, Hilbert symbols. Chapter V applies the preceding results to integral quadratic forms of discriminant ħ I. These forms occur in various questions: modular functions, differential topology, finite groups. The second part (Chapters VI and VII) uses 'analytic' methods (holomor phic functions). Chapter VI gives the proof of the 'theorem on arithmetic progressions' due to Dirichlet; this theorem is used at a critical point in the first part (Chapter Ill, no. 2.2). Chapter VII deals with modular forms, and in particular, with theta functions. Some of the quadratic forms of Chapter V reappear here. The two parts correspond to lectures given in 1962 and 1964 to second year students atthe Ecole Normale Superieure. A redaction of these lectures in the form of duplicated notes, was made by J.-J. Sansuc (Chapters I-IV) and J.-P. Ramis and G. Ruget (Chapters VI-VII). They were very useful to me; I extend here my gratitude to their authors. 132 pp. Englisch.

Taschenbuch. Condition: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Reflections on the legitimate deck problem.- Some extremal problems on families of graphs and related problems.- Integral properties of combinatorial matrices.- A class of three-designs.- Isomorphic factorisations III: Complete multipartite graphs.- Biplanes and semi-biplanes.- Near-self-complementary designs and a method of mixed sums.- Recent progress and unsolved problems in dominance theory.- On the linear independence of sets of 2q columns of certain (1, 1) matrices with a group structure, and its connection with finite geometries.- The doehlert-klee problem: Part I, statistical background.- On the cayley index of a group.- A survey of extremal (r, )-systems and certain applications.- On the enumeration of certain graceful graphs.- Fixing subgraphs of Km,n.- Hadamard equivalence.- A note on equidistant permutation arrays.- The combinatorics of algebraic graph theory in theoretical physics.- Graphs, groups and polytopes.- Decompositions of complete symmetric digraphs into the four oriented quadrilaterals.- Brick packing.- Colour symmetry in crystallographic space groups.- Generation of a frequency square orthogonal to a 10×10 latin square.- Factorization in the monoid of languages.- On graphs as unions of eulerian graphs.- The analysis of colour symmetry.- Computing automorphisms and canonical labellings of graphs.- On a result of bose and shrikhande.- Further results on a problem in the design of electrical circuits.- Transversals and finite topologies.- Asymptotic number of self-converse oriented graphs.- Some correspondences involving the schröder numbers and relations.- A computer listing of hadamard matrices.- A class of codes generated by circulant weighing matrices.- An application of maximum-minimum distance circuits on hypercubes.- Decompositions ofgraphs and hypergraphs.- Some extremal problems in combinatorial geometry.- Distance-regular graphs.- A note on baxter's generalization of the temperley-lieb operators.- Autocorrelation of (+1, 1) sequences.- Triangles in labelled cubic graphs.- Problems.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 368 pp. Englisch.

Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Mathematical preliminaries.- Optimal estimation problems for a distributed parameter system.- Existence theorems for the optimal estimations.- Optimal sensor location problems.- Stochastic optimal control problems. 284 pp. Englisch.

Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This collection of essays has evolved through the co-operative efforts, which began in the fall of 1974, of the participants in a workshop sponsored by the Fritz Thyssen Foundation. The idea of holding one or more small colloquia devoted to the topics of rational choice in science and scientific progress originated in a conversation in the summer of 1973 between one of the editors (GR) and the late Imre Lakatos. Unfortunately Lakatos himself was never able to see this project through, but his thought-provoking methodology of scientific research programmes was ably expounded and defended by his successors. Indeed, this volume continues and deepens the debate inaugurated in Criticism and the Growth of Knowledge (edited by Imre Lakatos and Alan Musgrave), a book which grew out of a conference held in 1965. That debate has continued during the years that have passed since that conference. The group of discussions about the place of rationality in science which have been held between those who emphasize the history of science (with Feyerabend and Kuhn as the most prominent exponents) and the critical rationalists (Popper and his followers), with Imre Lakatos defending a middle ground, these discussions were seen by almost all commentators as the most important event in the philosophy of science in the last decade. This problem area constituted the central theme of our Thyssen workshop. The workshop operated in the following manner. 440 pp. Englisch.

Taschenbuch. Condition: Neu. This item is printed on demand - Print on Demand Titel. Neuware Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 168 pp. Englisch.

Taschenbuch. Condition: Neu. This item is printed on demand - Print on Demand Titel. Neuware -In many biological models it is necessary to allow the rates of change of the variables to depend on the past history, rather than only the current values, of the variables. The models may require discrete lags, with the use of delay-differential equations, or distributed lags, with the use of integro-differential equations. In these lecture notes I discuss the reasons for including lags, especially distributed lags, in biological models. These reasons may be inherent in the system studied, or may be the result of simplifying assumptions made in the model used. I examine some of the techniques available for studying the solution of the equations. A large proportion of the material presented relates to a special method that can be applied to a particular class of distributed lags. This method uses an extended set of ordinary differential equations. I examine the local stability of equilibrium points, and the existence and frequency of periodic solutions. I discuss the qualitative effects of lags, and how these differ according to the choice of discrete or distributed lag. The models studied are drawn from the population dynamiCS of single species (logistic growth, the chemostat) and of interacting pairs of species (predation, mutualism), from cell population dynamiCS (haemopoiesis) and from biochemical kinetics (the Goodwin oscillator). The last chapter is devoted to a population model employing difference equations. All these models include non-linear terms.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 128 pp. Englisch.

Taschenbuch. Condition: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Reconstruction from projections has revolutionized radiology and has now become one of the most important tools of medical diagnosis The E. M. I. Scanner is one example. In this text, some fundamental theoretical and practical questions are resolved. Despite recent research activity in the area, the crucial subject of the uniqueness of the reconstruction and the effect of noise in the data posed some unsettled fundamental questions. In particular, Kennan Smith proved that if we describe an object by a C^inf_o function, i.e., infinitely differentiable with compact support, then there are other objects with the same shape, i.e., support, which can differ almost arbitrarily and still have the same projections in finitely many directions. On the other hand, he proved that objects in finite dimensional function spaces are uniquely determined by a single projection for almost all angles, i.e., except on a set of measure zero. Along these lines, Herman and Rowland in 'Three Methods for reconstructing objects from x-rays: a comparative study' (1973) showed that reconstructions obtained from the commonly used algorithms can grossly misrepresent the object and that the algorithm which produced the best reconstruction when using noiseless data gave unsatisfactory results with noisy data. Equally important are reports in Science, and personal communications by radiologists indicating that in medical practice failure rates of reconstruction vary from four to twenty percent. within this work, the mathematical dilemma posed by Kennan Smith's result is discussed and clarified.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 192 pp. Englisch.

Taschenbuch. Condition: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Mathematical preliminaries.- Optimal estimation problems for a distributed parameter system.- Existence theorems for the optimal estimations.- Optimal sensor location problems.- Stochastic optimal control problems.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 284 pp. Englisch.

Taschenbuch. Condition: Neu. This item is printed on demand - Print on Demand Titel. Neuware -This collection of essays has evolved through the co-operative efforts, which began in the fall of 1974, of the participants in a workshop sponsored by the Fritz Thyssen Foundation. The idea of holding one or more small colloquia devoted to the topics of rational choice in science and scientific progress originated in a conversation in the summer of 1973 between one of the editors (GR) and the late Imre Lakatos. Unfortunately Lakatos himself was never able to see this project through, but his thought-provoking methodology of scientific research programmes was ably expounded and defended by his successors. Indeed, this volume continues and deepens the debate inaugurated in Criticism and the Growth of Knowledge (edited by Imre Lakatos and Alan Musgrave), a book which grew out of a conference held in 1965. That debate has continued during the years that have passed since that conference. The group of discussions about the place of rationality in science which have been held between those who emphasize the history of science (with Feyerabend and Kuhn as the most prominent exponents) and the critical rationalists (Popper and his followers), with Imre Lakatos defending a middle ground, these discussions were seen by almost all commentators as the most important event in the philosophy of science in the last decade. This problem area constituted the central theme of our Thyssen workshop. The workshop operated in the following manner.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 440 pp. Englisch.

Taschenbuch. Condition: Neu. This item is printed on demand - Print on Demand Titel. Neuware -The five essays in this work attempt in interpretive and original ways to further the common field of investigation of man in the life-world. Richard Zaner in his examination of the multi-level approach of the social sciences to the social order points us toward essences and the manner in which they are epistemically understood. By contrasting the work of the later Durkheim with that of Husserl, Edward Tiryakian is able to suggest a commonality of endeavor between them. Paul Ricoeur, after phenomenologically distinguishing three concepts of ideology, examines the supposed conflict between science and ideology and its resolution through a hermeneutics of historical understanding. Maurice N at anson in his discussion of the problem of anonymity reflects on both the sociological givenness of the world and its phenomenological reconstruction, showing the necessary interrelationship of both prior ities. Fred Dallmayr, after a presentation of the state of validation in the social sciences and their problems in attempting to ground them selves either in regard to logical positivism or phenomenology, refers us to the perspective of Merleau-Ponty concerning the relationship of cognition and experience.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 120 pp. Englisch.

Taschenbuch. Condition: Neu. This item is printed on demand - Print on Demand Titel. Neuware -In any definition of terms, Dutch literature must be taken to mean all literature written in Dutch, thus excluding literature in Frisian, even though Friesland is part of the Kingdom of the Netherlands, in the same way as literature in Welsh would be excluded from a history of English literature. Simi larly, literature in Afrikaans (South African Dutch) falls outside the scope of this book, as Afrikaans from the moment of its birth out of seventeenth-century Dutch grew up independently and must be regarded as a language in its own right. . Dutc:h literature, then, is the literature written in Dutch as spoken in the Kingdom of the Netherlands and the so-called Flemish part of the Kingdom of Belgium, that is the area north of the linguistic frontier which runs east-west through Belgium passing slightly south of Brussels. For the modern period this definition is clear anough, but for former times it needs some explanation. What do we mean, for example, when we use the term 'Dutch' for the medieval period In the Middle Ages there was no standard Dutch language, and when the term 'Dutch' is used in a medieval context it is a kind of collective word indicating a number of different but closely related Frankish dialects. The most important of those were the dialects of the duchies of Limburg and Brabant, and of the counties of Flanders and Holland.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 416 pp. Englisch.

Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Reconstruction from projections has revolutionized radiology and has now become one of the most important tools of medical diagnosis The E. M. I. Scanner is one example. In this text, some fundamental theoretical and practical questions are resolved. Despite recent research activity in the area, the crucial subject of the uniqueness of the reconstruction and the effect of noise in the data posed some unsettled fundamental questions. In particular, Kennan Smith proved that if we describe an object by a C^inf_o function, i.e., infinitely differentiable with compact support, then there are other objects with the same shape, i.e., support, which can differ almost arbitrarily and still have the same projections in finitely many directions. On the other hand, he proved that objects in finite dimensional function spaces are uniquely determined by a single projection for almost all angles, i.e., except on a set of measure zero. Along these lines, Herman and Rowland in 'Three Methods for reconstructing objects from x-rays: a comparative study' (1973) showed that reconstructions obtained from the commonly used algorithms can grossly misrepresent the object and that the algorithm which produced the best reconstruction when using noiseless data gave unsatisfactory results with noisy data. Equally important are reports in Science, and personal communications by radiologists indicating that in medical practice failure rates of reconstruction vary from four to twenty percent. within this work, the mathematical dilemma posed by Kennan Smith's result is discussed and clarified. 192 pp. Englisch.

Buch. Condition: Neu. This item is printed on demand - Print on Demand Titel. Neuware -This book is divided into two parts. The first one is purely algebraic. Its objective is the classification of quadratic forms over the field of rational numbers (Hasse-Minkowski theorem). It is achieved in Chapter IV. The first three chapters contain some preliminaries: quadratic reciprocity law, p-adic fields, Hilbert symbols. Chapter V applies the preceding results to integral quadratic forms of discriminant ħ I. These forms occur in various questions: modular functions, differential topology, finite groups. The second part (Chapters VI and VII) uses 'analytic' methods (holomor phic functions). Chapter VI gives the proof of the 'theorem on arithmetic progressions' due to Dirichlet; this theorem is used at a critical point in the first part (Chapter Ill, no. 2.2). Chapter VII deals with modular forms, and in particular, with theta functions. Some of the quadratic forms of Chapter V reappear here. The two parts correspond to lectures given in 1962 and 1964 to second year students atthe Ecole Normale Superieure. A redaction of these lectures in the form of duplicated notes, was made by J.-J. Sansuc (Chapters I-IV) and J.-P. Ramis and G. Ruget (Chapters VI-VII). They were very useful to me; I extend here my gratitude to their authors.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 132 pp. Englisch.

Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Conference reports of scientific meetings do not automatically justi fy publication. Our decision to publish the Proceedings of this Sym posium was based on a number of reasons. The subject of more or less grave adverse side-effects of oral contra ception is of major importance for all women. If the research insti tutions of Gynecology make fundamental mistakes in this subject, then the trust in them will diminish substantially. National institutions will have to shoulder a part of that burden, too, if they do not suc ceed in timely prevention of grave and widespread health risks and damages. Adverse side-effects of oral contraception become only apparent in later life and probably only after a latent interval of at least 10 years. The German female population will be fully exposed to that situation during the next decade. Up to now about 40 % of the women aged 35 years or older have no experience with the pill. Ten years later nearly all of them shall have used the pill for a short period at least. If serious long-term side-effects exist, we have to build up our research strategy now to detect these health hazards in time. Large-scale studies cannot be generated just out of nothing, the development and review of ideas in a pilot phase is necessary. The pilot phase of a German long-term study began three years ago. We shall report our experiences of that pilot phase, because this might be of value for other projects of this kind. 252 pp. Englisch.

Buch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -It is possible to write endlessly on elliptic curves. (This is not a threat.) We deal here with diophantine problems, and we lay the foundations, especially for the theory of integral points. We review briefly the analytic theory of the Weierstrass function, and then deal with the arithmetic aspects of the addition formula, over complete fields and over number fields, giving rise to the theory of the height and its quadraticity. We apply this to integral points, covering the inequalities of diophantine approximation both on the multiplicative group and on the elliptic curve directly. Thus the book splits naturally in two parts. The first part deals with the ordinary arithmetic of the elliptic curve: The transcendental parametrization, the p-adic parametrization, points of finite order and the group of rational points, and the reduction of certain diophantine problems by the theory of heights to diophantine inequalities involving logarithms. The second part deals with the proofs of selected inequalities, at least strong enough to obtain the finiteness of integral points. 280 pp. Englisch.

Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The accumulation of literature dealing with the structure and function of synapses presents the synaptologist with a formidable problem. The diverse interests now en compassed by synaptology, and the many facets of neurobiology mirrored in these interests, make the task of reviewing synaptic organization a major one. Selection must be made and, if the reader is not to be misled, biases must be exposed. My frame of reference is the presynaptic terminal, that is, the enlarged termination of the axon (Figs. 1 and 2). This includes the specialized presynaptic membrane run ning alongside the cleft region and associated with the dense projections and presyn- tic vesicular grid (Figs. 1 and 8). Within the cytoplasm of the terminal are the synaptic and coated vesicles, mitochondria, the micromamentous presynaptic network and possibly microtubules. My approach to the presynaptic terminal will rely principally on mor phological concepts, although biochemical features of the composition of the ju- tional region are essential for a basic understanding of synaptic organization and ref erence to these will also be made. 76 pp. Englisch.

Buch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -In this book I address a dichotomy that is as central as any in ontology - that between ordinary objects or substances and the various attributes (Le. , properties, kinds, and relations) we associate with them. My aim is to arrive at the correct philosophical account of each member of the dichotomy. What I shall argue is that the various attempts to understand substances or attri butes in reductive terms fail. Talk about attributes, I shall try to show, is just that - talk about attributes; and, likewise, talk about substances is just tha- talk about substances. The result is what many will find a strange combina tion of views - a Platonistic theory of attributes, where attributes are univer sals or multiply exemplifiable entities whose existence is independent of 'the world of flux', and an Aristotelian theory of substance, where substances are basic unities not reducible to metaphysically more fundamental kinds of things. Part One is concerned with the ontology of attributes. After distinguishing three different patterns of metaphysical thinking about attributes, I examine, in turn, the phenomena of predication, resemblance, and higher order quanti fication. I argue that none of these phenomena by itself is sufficient to establish the inescapability of a Platonistic interpretation of attributes. Then, I discuss the phenomenon of abstract reference as it is exhibited in the use of abstract singular terms. 204 pp. Englisch.

Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -In this book I address a dichotomy that is as central as any in ontology - that between ordinary objects or substances and the various attributes (Le. , properties, kinds, and relations) we associate with them. My aim is to arrive at the correct philosophical account of each member of the dichotomy. What I shall argue is that the various attempts to understand substances or attri butes in reductive terms fail. Talk about attributes, I shall try to show, is just that - talk about attributes; and, likewise, talk about substances is just tha- talk about substances. The result is what many will find a strange combina tion of views - a Platonistic theory of attributes, where attributes are univer sals or multiply exemplifiable entities whose existence is independent of 'the world of flux', and an Aristotelian theory of substance, where substances are basic unities not reducible to metaphysically more fundamental kinds of things. Part One is concerned with the ontology of attributes. After distinguishing three different patterns of metaphysical thinking about attributes, I examine, in turn, the phenomena of predication, resemblance, and higher order quanti fication. I argue that none of these phenomena by itself is sufficient to establish the inescapability of a Platonistic interpretation of attributes. Then, I discuss the phenomenon of abstract reference as it is exhibited in the use of abstract singular terms. 204 pp. Englisch.