springer springer jun 1981 (98 résultats)

Taschenbuch. Etat : Neu. Neuware - This booklet contains hints to the solutions and answers where necessary, of the exercises contained in 'Intermediate Statistical Methods' by G. Barrie Wetherill. The following principles have been adopted in dealing with the answers. (1) In some cases the answer is the drawing of a graph, and this has been omitted. (2) In many numerical exercises a considerable amount of 'data snooping', plotting of residuals, etc. should follow the main ~sis. The inclusion of this material would make the answer booklet far too long. (3) In some cases there is a readily available reference from which the answer can be ob~ained, in which case reference has been made to this. It is not necessary to work through every exercise , but it should be recognised that the exercises are an integral part of the main text, and a comprehensive grasp of the subj ect cannot be obtained without attempting a substantial proportion of them. It is hoped that this booklet will be of assistance in pointing the way, and providing a check on the more vital calculations. The importance of numerical exercises should be stressed, and it is here that Appendix B is of importance. There is abundant material available there in many different fields of application. Currently we are in the process of mounting a form of Appendix B on a computer, together with accessing programs.

Buch. Etat : Neu. Neuware - Since the early 1800's, children have been taught and encouraged to function as instructional agents for their classroom peers. However, it was not until the last decade that peer-mediated intervention was studied in a rigorous, systematic fashion. The purpose of this edited volume is to provide an up-to-date and complete account of empirical research that addresses the general efficacy of classroom peers as behavior change agents. As a result of various social and legal developments, such as the passage of Public Law 94-142 and its accompanying demand for indi vidualized instruction, peer-mediated interventions seem likely to prolif erate. As I have noted elsewhere (Strain, this volume), close adherence to the principle of individualized programming has rendered obsolete the 'adults only' model of classroom instruction. Whether the utilization of peers in the instructional process comes to be viewed by school personnel as a positive adjunct to daily classroom practices depends in large mea sure on our ability to carefully design, conduct, and communicate the findings of applied research. I trust that this volume will function both to accurately communicate existing findings and to stimulate further study. My colleagues who have generously contributed their time and skill to this volume have my deepest appreciation. They have performed their various tasks in a timely, professional manner and, in my opinion, have provided considerable insight into the problems and potentials of peers as instructional agents.

Buch. Etat : Neu. Neuware - The essays included in this volume are a mixture of old and new. Three of them make their first appearance in print on this occa sion (Nos III, IV, and V). The remaining four are based upon materials previously published in learned journals or anthologies. (However, these previously published papers have been revised and, generally, expanded for inclusion here.) Detailed acknowl edgement of prior publications is made in the notes to the relevant articles. I am grateful to the editors of these several publications for their kind permission to use this material. I am grateful to an anonymous reader for the Western Ontario Series for some useful corrigenda. And I should like to thank John Horty and Lily Knezevich for their help in seeing this material through the press. NICHOLAS RESCHER Pittsburgh, Pennsylvania May, 1980 xi INTRODUCTION The unifying theme of these essays is their concern with Leibniz's metaphysics of nature. In particular, they revolve about his cos mology of creation and his conception of the real world as one among infinitely many equipossible alternatives.

Buch. Etat : Neu. Neuware - The southwestern Amazon basin, centering on the Territory of Rondönia and the State of Acre, is symbolically if not exactly geographically, the Wild Wild West of Brazil's northern rainforest fron tier. In Brazil the name Rondönia evokes exaggerated images of lawlessness, land feuding, and indigent peasants in search of a homestead. Despite the problems and the perception, the region has pushed ahead, in the view of the govern ment, with large-scale deforestation and the establishment of cattle ranches and agricultural farms raising manioc, rice, bananas, and other cash crops. The mining industry has been launched with the exploitation oftin stone, and the recent gold rush has attracted thousands of miners that are sifting alluvial deposits along the rivers for the precious ore. In an energy-short world, the region boasts of its large hydroelectric potential waiting development in the rivers falling off the Brazilian Shield and draining into the Rio Madeira. Planners are optimistic that Rondönia's resources, once developed, will more than justify, at least in this corner of the rainforest frontier, the Economic Conquest ofthe Amazon. Sandwiched between the economic take-off and the dream, however, are the biological resources - the plants and animals - that must serve as sources of energy and food until human dominated ecosystems replace naturaiones. These resources are, ofnecessity, being heavily attacked to support the shaky economy of the region, but they are very poorly understood in terms of potential productivity and proper management.

Buch. Etat : Neu. Neuware.

Buch. Etat : Neu. Neuware - This book presents the formal lectures and contributed papers given at the NATO Advanced Study Institute on Fast Reactions in Energetic Systems, which took place in Preveza, Greece, during the period 6-19 July 1980. The material describes experimental observations and the more advanced theoretical aspects of certain types of fast reactions and energy or charge transfer processes which are usually complete 6 12 in periods of 10- - 10- seconds. Furthermore, it discusses the role of macroscopic and molecular processes in the ignition, combustion, deflagration, and detonation of solid, liquid, and gaseous chemical systems. Various papers deal with the ability of molecules to absorb and transmit the different forms of energy provided by shock, light, thermal, or electron pulses, and to contribute to the propagation of reactions under high temperatures and pressures. The role of energy pumped or transferred to electronic or vibrational states is discussed in terms of excitation, ionization, bond scission, and the formation of free radicals. The dynamics and reactivity of ionic species, electronically and vibrationally excited states, and free radicals are described for various gaseous, liquid, and solid systems. The proceedings include presentations of theoretical and experimental techniques to describe and observe the phenomena.

Taschenbuch. Etat : Neu. Neuware -Der Erfolg einer Operation am offenen Herzen hängt - neben an deren Faktoren - vor allem von der Qualität des intraoperativen Myokardschutzes ab. Die Einführung kardioplegischer Methoden in die Klinik hat das Risiko offener Herzoperationen entschei dend gesenkt. Die Injektionskardioplegie und Infusionskardioplegie stellen heute die gebräuchlichsten kardioplegischen Verfahren dar. Sie wurden in zahlreichen tierexperimentellen Untersuchungen aus giebig beforscht. Allerdings erfolgten derartige Studien bislang immer an gesunden Tierherzen. Ziel der vorliegenden Arbeit war es, diese Kardioplegieverfahren im Tierversuch am vorgeschädigten, hypertrophierten Myokard auf ihre Wirksamkeit zu überprüfen. Die tierexperimentellen Untersuchungen wurden von 1976- 1978 in der Abteilung für experimentelle Chirurgie und im bio chemischen Labor der Chirurgischen Univ.-Klinik Tübingen durch gefuhrt. Für die wissenschaftliche Unterstützung und Beratung bei den experimentellen und insbesondere den biochemischen Unter suchungen danke ich Herrn Professor Heller und seinen medizi nisch-technischen Assistentinnen sehr herzlich. Herrn Professor Hoffmeister danke ich herzlich für die Förde rung dieser Untersuchungen, seine wertvollen Anregungen und die kritische Durchsicht des Manuskriptes. Meinen Kollegen Herrn Dr. Fenchel und Herrn Dr. Huth sowie den Mitarbeitern des Tier-OP danke ich für ihre Mithilfe bei der Durchführung der Versuche. Schließlich habe ich Herrn Juranek, Abteilung für Medizinische Dokumentation und Datenverarbeitung an der Chirurgischen Univ. Klinik Tübingen, für die statistische Auswertung der Ergebnisse zu danken. Tübingen, im April 1981 W. Seybold-Epting Inhaltsverzeichnis I. Einführung in die Problematik des Myokardschutzes während Operationen am offenen Herzen . . 1. Koronarperfusion . . . . . . . . . . . . . . . . . . 88 pp. Deutsch.

Buch. Etat : Neu. Neuware - EINE TRAGODIE: W ALLEN STEINS UND UNSER ALLER BOSER GEIST Descartes zweifelte - selbst an der Wahrheit von Arithmetik und Geometrie: 'Equidem non aliam ob causam de iis dubitandum esse . . . judicavi, quam quia veniebat in mentem forte aliquem Deum talem mihi naturam indere potuisse, ut etiam ilia deciperer, quae manifestissima viderentur. Sed quoties haec praeconcepta de summa Dei potentia opinio mihi occurrit, non possum non fateri, siquidem velit, facile illi esse efficere ut errem, etiam in his quae me puto mentis oculis quam evidentissime intueri': 'Allerdings aus keinem anderen Grunde urteilte ich . . . , daB daran zu zwei feln sei, als dem, daB mir in den Sinn kam, vielleicht habe ein Gott mir eine Natur der Art zu geben vermocht, daB ich mich tausche selbst beztiglich dessen, was das Offenkundigste schiene. Doch so oft mir diese vorgefaBte Meinung tiber Gottes hOchste Macht begegnet, kann ich nicht umhin, einzugestehen, es sei ihm ein Leichtes, wenn er nur wolle, zu bewirken, daB ich irre selbst in solchem, was ich mit den Augen des Geistes so evident wie nur m6glich einzusehen meine. ' Dann ware die offenkundigste GewiBheit, die hOchste Evidenz - am Ende der entschiedenste Grund zur Vermutung einer voll kommenen Tauschung. Wie ware das denkbar Ais v611ig gewil3, ganz offenkundig und vollkommen evident erscheint uns, was sich uns zwingend aufdringt, ganz ohne unser Zutun, v611ig unab hangig von unserem eigenen Glauben, Meinen und Wollen, ganz lich unbeeinflul3t, ungefarbt von unserer Subjektivitat.

Taschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Structural theory of PSH-algebras.- First applications.- Representations of general linear and affine groups over finite fields. 192 pp. Englisch.

Taschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The universal covering group G.- Representations.- Automorphic models.- Standard and Whittaker models.- Intertwining operators.- Fourier coefficients of automorphic models.- The operators .- Eisenstein models.- L2( /G, X).- The analytic continuation of the Eisenstein model.- Spectral decomposition of eL2( /G,X).- The space H .- Convolution operators.- Scalar product of Poincar¿eries.- Sum formula. 212 pp. Englisch.

Taschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware 292 pp. Englisch.

Taschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -In English-speaking countries Victor Kraft is known principally for his account of the Vienna Circle. ! That group of thinkers has exercised in recent decades a significant influence not only on the philosophy of the western world, but also, at least indirectly, on that of the East, where there is now taking place a slow but clearly irresistible erosion of dogmatic Marxism by ways of think ing derived from a modem scientific conception of the world. Kraft's work as historian of the Vienna Circle has led to his being classed, without further qua1ification, as a neo-positivist philosopher. It is, however, only partially correct to count him as such. To be sure, he belonged to the group named, he took part in its meetings, and he drew from it suggestions central to his own work; but he did not belong to the hard core of the Circle and was a con scious opponent of certain radical tendencies espoused, at least from time to time, by some of its members. Evidence of this is provided by the theory of value now presented in English translation, since no less a thinker than Rudolf Carnap had, originally at any rate, obeyed a very narrowly conceived criterion of sense and declared value judgements to be senseless. 220 pp. Englisch.

Taschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Introducing his book 'The Theory of UnemPloyment Reconsidered', Professor Malinvaud expressed several years ago his hope 'to convey [his] strong belief that the reconsideration is a major step in the development of our science'. In view of the stimulating effect this approach has on economic research, it seems now that many economists do indeed share Malinvaud's belief and are ready to devote their time and their skill to ensure the realization of that progress. This book, grown out of a Ph. D. thesis presented at the Universit~ Catholique de Louvain, aims at contributing in its own way to that venture. Looking towards econometric applications, it illustrates that a framework h la Malinvaud (i. e. based on the theory of temporary equilibrium with rationing) provides the means of improving macro econometric modelling. There has been so far a wide and pervasive fear that, despite its analytical and theoretical usefulness, the quantity rationing approach would be much too complex to be successfully implemented into econometric models. The research the interested reader will discover in the subsequent pages should convince him that the difficulty faced by econometricians is essentially (I am tempted to say merely) one of developing an adequate methodology; it should thus disappear once is made the initial research investment. The empirical results presented towards the end of the book, though prelim inary, already suggests that the effort is rewarding and should be continued. My debts are many. 152 pp. Englisch.

Taschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -In the clinic at Giessen during the last few years there has been an extensive programme of research into the various aspects of lesions of the diencephalon and brain stem and the associated autonomic and metabolic disturbances. As a continuation of this research programme Ernst Grote has investigated the central neuronal and hormonal factors acting on the peripheral regulation of glucose metabolism and their diverse inter-relationships. This research was made possible not only by the availability of well-documented clinical and experi mental material with primary and secondary lesions of the hypo thalamus and brain stem, but also by the advances in clinical endo crinology and the development of radio-immuno-assays. By continuous systematic investigation of the basic values and their reaction to stress-tests, as well as to trauma and operation, he has elucidated the basic facts of the central and peripheral mechanisms which are concerned in the regulation of glucose, and also their disturbances. Of particular significance are his descriptions and interpretations of the characteristic hypothalamic syndromes, as combinations of hyperglycaemia, hyperinsulinaemia and hyperglucagonaemia; dif ferent syndromes are produced by lesions at various levels of the brain stem and in central brain death. From this starting point it was possible to develop a rational treatment of this hormonal dys regulation by means of somatostatin. 172 pp. Englisch.

Taschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Refined analysis and improvements on some factoring algorithms.- Absolute primality of polynomials is decidable in random polynomial time in the number of variables.- Area-time optimal VLSI networks for computing integer multiplication and Discrete Dourier Transform.- Cost tradeoffs in graph embeddings, with applications.- Minimum s-t cut of a planar undirected network in o(n log2(n)) time.- On the density of color-families.- The implication problem for data dependencies.- Characterizing data base Dependencies.- Data flow analysis of applicative programs.- Flow analysis of lambda expressions.- Algorithmic specifications of abstract data types.- Nondeterminism in abstract data types.- A view of directions in relational database theory.- A new characterization of the regular languages.- Langages Reconnaissables et Codage Prefixe Pur.- Passes, sweeps and visits.- On LALR(k) testing.- On size bounds for deterministic parsers.- A decision procedure for the equivalence of two dpdas one of which is linear.- The deducibility problem in Propositional Dynamic Logic.- Finite models for deterministic propositional dynamic logic.- Impartiality, justice and fairness: The ethics of concurrent termination.- Computing a perfect strategy for n¿ chess requires time exponential in n.- On the complexity of simple arithmetic expressions.- Proving lower bounds for linear decision trees.- Parikh-bounded languages.- Generalized Parikh mappings and homomorphisms.- Chomsky-Schotzenberger representations for families of languages and grammatical types.- Algebraically specified programming systems and Hoare's logic.- Automatic construction of verification condition generators from hoare logics.- Circular expressions: Elimination of static environments.- An axiomatic approach to the Korenjak - Hopcroft algorithms.- On the (generalized) post correspondence problem with lists of length 2.- A sparse table implementation of priority queues.- Comparing and putting together recursive path ordering, simplification orderings and Non-Ascending Property for termination proofs of term rewriting systems.- Termination of linear rewriting systems.- Realizing an equational specification.- A cook's tour of countable nondeterminism.- The complexity of decision problems for finite-turn multicounter machines.- Alternating multihead finite automata.- The solution for the branching factor of the alpha-beta pruning algorithm.- Uniform complexity and digital signatures.- On the generation of cryptographically strong pseudo-random sequences.- Measuring the expressive power of dynamic logics: An application of abstract model theory. 564 pp. Englisch.

Taschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This Lecture Note deals with asymptotic properties, i.e. weak and strong consistency and asymptotic normality, of parameter estimators of nonlinear regression models and nonlinear structural equations under various assumptions on the distribution of the data. The estimation methods involved are nonlinear least squares estimation (NLLSE), nonlinear robust M-estimation (NLRME) and non linear weighted robust M-estimation (NLWRME) for the regression case and nonlinear two-stage least squares estimation (NL2SLSE) and a new method called minimum information estimation (MIE) for the case of structural equations. The asymptotic properties of the NLLSE and the two robust M-estimation methods are derived from further elaborations of results of Jennrich. Special attention is payed to the comparison of the asymptotic efficiency of NLLSE and NLRME. It is shown that if the tails of the error distribution are fatter than those of the normal distribution NLRME is more efficient than NLLSE. The NLWRME method is appropriate if the distributions of both the errors and the regressors have fat tails. This study also improves and extends the NL2SLSE theory of Amemiya. The method involved is a variant of the instrumental variables method, requiring at least as many instrumental variables as parameters to be estimated. The new MIE method requires less instrumental variables. Asymptotic normality can be derived by employing only one instrumental variable and consistency can even be proved with out using any instrumental variables at all. 216 pp. Englisch.

Taschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The first Pannonian Symposium on Mathematical Statistics was held at Bad Tatzmannsdorf (Burgenland/Austria) from September 16th to 21st, 1979. The aim of it was to furthe~ and intensify scientific cooperation in the Pannonian area, which, in a broad sense, can be understood to cover Hungary, the eastern part of Austria, Czechoslovakia, and parts of Poland, Yen ugoslavia and Romania. The location of centers of research in mathematical statistics and probability theory in this territory has been a good reason for the geographical limitation of this meeting. About 70 researchers attended this symposium, and 49 lectures were delivered; a considerable part of the presented papers is collected in this volume. Beside the lectures, vigorous informal discussions among the participants took place, so that many problems were raised and possible ways of solutions were attacked. We take the opportunity to thank Dr. U. Dieter (Graz), Dr. F. Konecny (Wien), Dr. W. Krieger (G8ttingen) and Dr. E. Neuwirth (Wien) for their valuable help in the refereeing work for this volume. The Pannonian Symposium could not have taken place without the support of several institutions: The Austrian Ministry for Research and Science, the State government of Burgenland, the Community Bad Tatzmannsdorf, the Kurbad Tatzmannsdorf AG, the Austrian Society for Information Science and Statistics, IBM Austria, Volksbank Oberwart, Erste Osterreichische Spar-Casse and Spielbanken AG Austria. The Austrian Academy of Sciences iv made possible the participation in the Symposium for several mathematicians. We express our gratitude to all these institutions for their generous help. 324 pp. Englisch.

Taschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Modules.- Data types.- Semantics.- The library.- Notation.- Lexical considerations.- Types, type generation, and type specifications.- Scopes, declarations, and equates.- Assignment and invocation.- Expressions.- Statements.- Exception handling and exits.- Modules. 204 pp. Englisch.

Taschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This monograph is a collection of results recently obtained by the authors. Most of these have been published, while others are awaitlng publication. Our investigation has two main purposes. Firstly, we discuss higher order asymptotic efficiency of estimators in regular situa tions. In these situations it is known that the maximum likelihood estimator (MLE) is asymptotically efficient in some (not always specified) sense. However, there exists here a whole class of asymptotically efficient estimators which are thus asymptotically equivalent to the MLE. It is required to make finer distinctions among the estimators, by considering higher order terms in the expansions of their asymptotic distributions. Secondly, we discuss asymptotically efficient estimators in non regular situations. These are situations where the MLE or other estimators are not asymptotically normally distributed, or where l 2 their order of convergence (or consistency) is not n / , as in the regular cases. It is necessary to redefine the concept of asympto tic efficiency, together with the concept of the maximum order of consistency. Under the new definition as asymptotically efficient estimator may not always exist. We have not attempted to tell the whole story in a systematic way. The field of asymptotic theory in statistical estimation is relatively uncultivated. So, we have tried to focus attention on such aspects of our recent results which throw light on the area. 256 pp. Englisch.

Taschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The student of biological science in his final years as an undergraduate and his first years as a graduate is expected to gain some familiarity with current research at the frontiers of his discipline. New research work is published in a perplexing diversity of publications and is inevitably concerned with the minutiae of the subject. The sheer number of research journals and papers also causes confusion and difficulties of assimilation. Review articles usually presuppose a background know ledge of the field and are inevitably rather restricted in scope. There is thus a need for short but authoritative introductions to those areas of modern biological research which are either not dealt with in standard introductory textbooks or are not dealt with in sufficient detail to enable the student to go on from them to read scholarly reviews with profit. This series of books is designed to satisfy this need. The authors have been asked to produce a brief outline of their subject assuming that their readers will have read and remembered much of a standard introductory textbook on biology. This outline then sets out to provide by building on this basis, the conceptual framework within which modern research work is progressing and aims to give the reader an indication of the problems, both conceptual and practical, which must be overcome if progress is to be maintained. 84 pp. Englisch.

Taschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The Second Edition of Food Process Engineering by Dr. Dennis Heldman, my former student, and co-author Paul Singh, his former student, attests to the importance of the previous edition. In the Foreword to the First Edition, I noted the need for people in all facets of the food processing industry to consider those variables of design of particular importance in engineering for the food processing field. In addition to recognizing the many variables involved in the biological food product being handled from production to consumption, the engi neer must oftentimes adapt equations developed for non-biological materials. As more and more research is done, those equations are appropriately modified to be more accurate or new equations are developed specifically for designing to process foods. This Edition updates equations used. This book serves a very important need in acquainting engineers and technologists, particularly those with a math ematics and physics background, with the information necessary to provide a more efficient design to accomplish the objectives. Of prime importance, at present and in the future, is to design for efficient use of energy. Now, it is often economical to put considerably more money into first costs for an efficient design than previously, when energy costs were a much smaller proportion of the total cost of process engineering. 448 pp. Englisch.

Taschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Programming and structure changes in parallel computers.- Tree machines and divide-and-conquer algorithms.- Queue machines: An organization for parallel computation.- Operating systems support for the finite element machine.- Automatic program restructuring for high-speed computation.- Language support for designing multilevel computer systems.- Parallel structures for vector processing.- Language design approaches for parallel processors.- Reconciling data flow machines and conventional languages.- On language constructs for concurrent programs.- Generation of dataflow graphical object code for the lapse programming language.- Cellular algorithms and their verification.- The development of fast cellular pattern transformation algorithms using virtual boundaries.- Cellular algorithms for binary matrix operations.- Analysis of concurrent algorithms.- Sauge: How to use the parallelism of sequential programs.- A transformational approach for developing parallel programs.- A methodology for programming with concurrency.- On synchronization and its specification.- 'Non-numerical aspects of computations on parallel hardware'.- Compiling in parallel.- Finding the maximum, merging and sorting in a parallel computation model.- Parallel computations in information retrieval.- Recurrence semigroups and their relation to data storage in fast recurrence solvers on parallel machines.- Parallel algorithms for the convex hull problem in two dimensions.- On basic concepts in parallel numerical mathematics.- Iterative methods for the solution of elliptic difference equations on multiprocessors.- Hierarchical discrete systems and realisation of parallel algorithms.- Solving two modified discrete poisson equations in 7logn steps on N2 processors.- A parallel algorithm for solving band systems and matrix inversion.- Parallel evaluation of correlation time-of-flight experiments.- Parallelization of a minimization problem for multi-processor systems.- Design and development of concurrent programs.- Binary trees and parallel scheduling algorithms.- New variants of the quadrant interlocking factorisation (Q.I.F.) method. 524 pp. Englisch.

Taschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Getting started: Basic definitions and constructions.- Asymptotic behavior of stochastic automata.- Representations for state automata.- Presentations for automata with output.- Prediction theory for stochastic automata. 152 pp. Englisch.

Taschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The discovery of hyperbolic geometry, and the subsequent proof that this geometry is just as logical as Euclid's, had a profound in fluence on man's understanding of mathematics and the relation of mathematical geometry to the physical world. It is now possible, due in large part to axioms devised by George Birkhoff, to give an accurate, elementary development of hyperbolic plane geometry. Also, using the Poincare model and inversive geometry, the equiconsistency of hyperbolic plane geometry and euclidean plane geometry can be proved without the use of any advanced mathematics. These two facts provided both the motivation and the two central themes of the present work. Basic hyperbolic plane geometry, and the proof of its equal footing with euclidean plane geometry, is presented here in terms acces sible to anyone with a good background in high school mathematics. The development, however, is especially directed to college students who may become secondary teachers. For that reason, the treatment is de signed to emphasize those aspects of hyperbolic plane geometry which contribute to the skills, knowledge, and insights needed to teach eucli dean geometry with some mastery. 348 pp. Englisch.

Taschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The student of biological science in his final years as an undergraduate and his first years as a graduate is expected to gain some familiarity with current research at the frontiers of his discipline. New research work is published in a perplexing diversity of publications and is inevitably concerned with the minutiae of the subject. The sheer number of research journals and papers also causes confusion and difficulties of assimilation. Review articles usually presuppose a back ground knowledge of the field and are inevitably rather restricted in scope. There is thus a need for short but authoritative introductions to those areas of modern biological research which are either not dealt with in standard introductory textbooks or are not dealt with in suffi cient detail to enable the student to go on from them to read scholarly reviews with profit. This series of books is designed to satisfy this need. The authors have been asked to produce a brief outline of their subject assuming that their readers will have read and remembered much of a standard introductory textbook on biology. This outline then sets out to provide by building on this basis, the conceptual framework within which modern research work is progressing and aims to give the reader an indication of the problems, both conceptual and practical, which must be overcome if progress is to be maintained. 84 pp. Englisch.

Taschenbuch. Etat : Neu. This item is printed on demand - Print on Demand Titel. Neuware -Structural theory of PSH-algebras.- First applications.- Representations of general linear and affine groups over finite fields.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 192 pp. Englisch.

Taschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware 288 pp. Englisch, Französisch.

Taschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Advances in research, knowledge and clinical practice in all branches of medicine have been rapid over the past decades and the speed is accelerating. Thus, as we enter the 1980s the pressure on specialists is to concentrate on ever-narrowing fields of their science. For the research worker this is desirable, but the practising clinician Our patient is a whole can have no clearly defined dividing lines. individual and every aspect of her makeup, physical and psychological, must always be taken fully into account. This is of vital importance in obstetrics and gynaecology. These two closely inter woven disciplines are branches of medical science in which emergency situations are not uncommon. Thus every practitioner, doctor, mid wife and nurse needs understanding of these subjects. Although tech nology advances rapidly, many basic principles remain the same. The chapters that follow deal with these, and modern trends in clinical management are discussed. For some decades the author has been in clinical charge of a matern ity hospital some 12 miles south of Central London. The hospital is a training school for obstetricians and midwives, and the local popula tion is adequately supplied with a general practitioner service. These circumstances are of some relevance because many views expressed are based on personal experience while others are based on countless books, articles, congresses and discussion with colleagues. To every source of information I express my thanks. 276 pp. Englisch.

Taschenbuch. Etat : Neu. This item is printed on demand - Print on Demand Titel. Neuware Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 292 pp. Englisch.

Taschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book began many years ago as course notes for students at the University of Bath, and later at the University of Kent. Students used draft versions of the chapters, which were consequently revised. Second and third year students, as well as those taking MSc courses have used selections of the chapters. In particular, Chapters I to 7 (only) have been the basis of a very successful second-year course, the more difficult sections being omitted. The aims of this particular course were:- (a) to cover some interesting and useful applications of statistics with an emphasis on applications, but with really adequate theory; (b) to lay the foundations for interesting third-year courses; (c) to tie up with certain areas of pure mathematics and numerical analysis. 2 Students will find Chapter I a useful means of revising the t, X and F procedures, which is material assumed in this text, see Section 1.1. Later sections of Chapter I cover robustness and can be omitted by second-year students or at a first reading. Chapter 2 introduces some simple statistical models, so that the discussion of later chapters is more meaningful. 408 pp. Englisch.