birkhäuser basel birkhäuser basel okt 2012 (627 risultati)

Taschenbuch. Condizione: Neu. Neuware -'Fractals in Biology and Medicine' explores the potential of fractal geometry for describing and understanding biological organisms, their development and growth as well as their structural design and functional properties. It extends these notions to assess changes associated with disease in the hope to contribute to the understanding of pathogenetic processes in medicine. The book is the first comprehensive presentation of the importance of the new concept of fractal geometry for biological and medical sciences. It collates in a logical sequence extended papers based on invited lectures and free communications presented at a symposium in Ascona, Switzerland, attended by leading scientists in this field, among them the originator of fractal geometry, Benoit Mandelbrot. 'Fractals in Biology and Medicine' begins by asking how the theoretical construct of fractal geometry can be applied to biomedical sciences and then addresses the role of fractals in the design and morphogenesis of biological organisms as well as in molecular and cell biology. The consideration of fractal structure in understanding metabolic functions and pathological changes is a particularly promising avenue for future research.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 412 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -One of the key concerns in modern control theory is the design of steering strategies. The implementation of such strategies is done by a regulator. Presented here is a self-contained introduction to the mathematical background of this type of regulator design. The topics selected address the matter of greatest interest to the control community, at present, namely, when the design objective is the reduction of the influence of exogeneous disturbances upon the output of the system. In a first scenario the disturbance signal is regarded as a deterministic time series with known dynamics but unknown parameters. The design objective is then the asymptotic disturbance compensation. In a second scenario, no information about the disturbance signal is available apart from some bounds. Here, in an H-approach, control strategies are worked out which will prove efficient for all such disturbances. The intention of this book is to present ideas and methods on such a level that the beginning graduate student will be able to follow current research. New results are included, especially for nonlinear control systems, and as a service to the reader, an extensive appendix presents topics from linear algebra, invariant manifolds and calculus of variations, information which is hardly to be found in standard textbooks. Contents: Introduction ¿ The problem of output regulation ¿ Introduction ¿ Problem statement ¿ Output regulation via full information ¿ Output regulation via full error feedback ¿ A particular case ¿ Well-posedness and robustness ¿ The construction of a robust regulator ¿ Disturbance attenuation via H-methods ¿ Introduction ¿ Problem statement ¿ A characterization of the L2-gain of a linear system ¿ Disturbance attenuation via full information ¿ Disturbance attenuation via measured feedback ¿ Full information regulators ¿ Problem statement ¿ Time-dependent control strategies ¿ Examples ¿ Time-independent control strategies¿ The local case ¿ Nonlinear observers ¿ Problem statement ¿ Time-dependent observers ¿ Error feedback regulators ¿ Examples ¿ Nonlinear H-techniques ¿ Introduction ¿ Construction of the saddle-point ¿ The local scenario ¿ Disturbance attenuation via linearization ¿ Matrix equations ¿ Linear matrix equations ¿ Algebraic Riccati equations ¿ Invariant manifolds ¿ Existence theorem ¿ Outflowing manifolds ¿ Asymptotic phase ¿ Convergence for T ¿ A special case ¿ Dichotomies and Lyapunov functions ¿ Hamilton-Jacobi-Bellman-Isaacs equation ¿ Introduction ¿ Method of characteristics ¿ The equation of Isaacs ¿ The Hamiltonian version of Isaacs' equation ¿ BibliographySpringer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 176 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -The controversy between the wave theory and the emission theory of light early in the nineteenth century has been a subject of numerous studies. Yet many is sues remain unclear, in particular, the reasons for rejecting Young's theory of light. It appears that further progress in the field requires a better grasp of the overall situation in optics and related subjects at the time and a more thorough study of every factor suggested to be of importance for the dispute. This book is intended to be a step in this direction. It examines the impact of the concept of interference of light on the development of the early nineteenth century optics in general, and the theory of light, in particular. This is not a his tory of the wave theory of light, nor is it a history of the debate on the nature of light in general: it covers only that part of the controversy which involved the concept of interference. Although the book deals with a number of scientists, scientific institutions, and journals, its main character is a scientific concept, the principle of interference. While discussing the reasons for accepting or rejecting this concept I have primarily focused on scientific factors, although in some cases the human factor is examined as well. The book is a revised Ph. D. dissertation (University of Minnesota, 1984) writ ten under Alan E. Shapiro.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 276 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -George Boole (1815-1864) is well known to mathematicians for his research and textbooks on the calculus, but his name has spread world-wide for his innovations in symbolic logic and the development and applications made since his day. The utility of 'Boolean algebra' in computing has greatly increased curiosity in the nature and extent of his achievements. His work is most accessible in his two books on logic, 'A mathematical analysis of logic' (1947) and 'An investigation of the laws of thought' (1954). But at various times he wrote manuscript essays, especially after the publication of the second book; several were intended for a non-technical work, 'The Philosophy of logic', which he was not able to complete. This volume contains an edited selection which not only relates them to Boole's publications and the historical context of his time, but also describes their strange history of family, followers and scholars have treid to confect an edition. The book will appeal to logicians, mathematicians and philosophers, and those interested in the histories of the corresponding subjects; and also students of the early Victorian Britain in which they were written.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 308 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -The school, the book This book is based on lectures given by the authors of the various chapters in a three week long CIMPA summer school, held in Sophia-Antipolis (near Nice) in July 1992. The first week was devoted to the basics of symplectic and Riemannian geometry (Banyaga, Audin, Lafontaine, Gauduchon), the second was the technical one (Pansu, Muller, Duval, Lalonde and Sikorav). The final week saw the conclusion ofthe school (mainly McDuffand Polterovich, with complementary lectures by Lafontaine, Audin and Sikorav). Globally, the chapters here reflect what happened there. Locally, we have tried to reorganise some ofthe material to make the book more coherent. Hence, for instance, the collective (Audin, Lalonde, Polterovich) chapter on Lagrangian submanifolds and the appendices added to some of the chapters. Duval was not able to write up his lectures, so that genuine complex analysis will not appear in the book, although it is a very current tool in symplectic and contact geometry (and conversely). Hamiltonian systems and variational methods were the subject of some of Sikorav's talks, which he also was not able to write up. On the other hand, F. Labourie, who could not be at the school, wrote a chapter on pseudo-holomorphic curves in Riemannian geometry.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 348 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -Plate tectonics has significantly broadened our view of the dynamics of continental evolution, involving both the processes currently active at the surface and those extending deep into the interior of the Earth. Seismic anisotropy provides some of the most diagnostic evidence for mapping past and present deformation of the entire crustmantle system. This volume contains papers presented originally at an international workshop at the Chateau of Trest in the Czech Republic in 1996. This workshop brought together geophysicists and geologists who work in the field of observational and theoretical seismology, mineral and rock physics, gravity studies and geodynamic modelling. Topics include large-scale anisotropy of the Earth's mantle, mantle heterogeneity vs. anisotropy 3-D velocity and density structures and inferences on mantle dynamics, mineral and rock physics studies, and mathematical aspects of complex wave propagation.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 520 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -From the very beginning in the late 1950s of the basic ideas of optimal control, attitudes toward the topic in the scientific and engineering community have ranged from an excessive enthusiasm for its reputed capability ofsolving almost any kind of problem to an (equally) unjustified rejection of it as a set of abstract mathematical concepts with no real utility. The truth, apparently, lies somewhere between these two extremes. Intense research activity in the field of optimization, in particular with reference to robust control issues, has caused it to be regarded as a source of numerous useful, powerful, and flexible tools for the control system designer. The new stream of research is deeply rooted in the well-established framework of linear quadratic gaussian control theory, knowledge ofwhich is an essential requirement for a fruitful understanding of optimization. In addition, there appears to be a widely shared opinion that some results of variational techniques are particularly suited for an approach to nonlinear solutions for complex control problems. For these reasons, even though the first significant achievements in the field were published some forty years ago, a new presentation ofthe basic elements ofclassical optimal control theory from a tutorial point of view seems meaningful and contemporary. This text draws heavily on the content ofthe Italian language textbook 'Con trollo ottimo' published by Pitagora and used in a number of courses at the Politec nico of Milan.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 308 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -Discrete stochastics is the theory of discrete probability spaces. This undergraduate textbook gives a concise introduction into discrete stochastics in general, and into a variety of typical special topics in this field, such as information theory, fluctuation theory, and semigroups of stochastic matrices. The emphasis lies on probability theory rather than on statistical methodology. Motivations, interpretations, and numerous examples and exercises relate the mathematical theory to stochastic experience.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 296 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -This book deals with asymptotic solutions of linear and nonlinear equa tions which decay as h ---+ 0 outside a neighborhood of certain points, curves and surfaces. Such solutions are almost everywhere well approximated by the functions cp(x) exp{iS(x)/h}, x E 1R3, where S(x) is complex, and ImS(x) ~ o. When the phase S(x) is real (ImS(x) = 0), the method for obtaining asymp totics of this type is known in quantum mechanics as the WKB-method. We preserve this terminology in the case ImS(x) ~ 0 and develop the method for a wide class of problems in mathematical physics. Asymptotics of this type were constructed recently for many linear prob lems of mathematical physics; certain specific formulas were obtained by differ ent methods (V. M. Babich [5 -7], V. P. Lazutkin [76], A. A. Sokolov, 1. M. Ter nov [113], J. Schwinger [107, 108], E. J. Heller [53], G. A. Hagedorn [50, 51], V. N. Bayer, V. M. Katkov [21], N. A. Chernikov [35] and others). However, a general (Hamiltonian) formalism for obtaining asymptotics of this type is clearly required; this state of affairs is expressed both in recent mathematical and physical literature. For example, the editors of the collected volume [106] write in its preface: 'One can hope that in the near future a computational pro cedure for fields with complex phase, similar to the usual one for fields with real phase, will be developed.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 316 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -Following 50 years of glucocorticoid use in a clinical setting, aninternational body of expert scientists and physicians presents the mostexpansive survey of glucocorticoid pharmacology to date. This worktraces the history of glucocorticoid biology from the seminaldescription of glucocorticoid insufficiency by Thomas Addison in themid-19th century, up to current advances in elucidating the molecularbasis of glucocorticoid action. Important discoveries are presented, aswell as milestones in drug development, a survey of current clinicalpractice, and prospects for novel glucocorticoid-based therapeutics.Scientists and clinicians will appreciate the scope of this work, whichis of special interest to workers in the fields of endocrinologyinflammation and autoimmune disease.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 220 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -Although surprising, it seems fitting that a drug developed at the dawn of the era of rational drug design and therapeutics, methotrexate, should remain in common use for the therapy of so many different kinds of illnesses. Moreover, methotrexate has completely revolutionized the way in which medicine is practiced in a number of speciality areas. First developed to treat malignancies, methotrexate is now commonly used to treat gynecological problems, inflammatory arthritis, skin disease and probably other ailments as well. This work is designed to give a broad overview of the history of methotrexate's development, its prior use and its current therapeutic uses. As discussed in Chapter I, aminopterin and methotrexate were designed to inhibit mammalian folate metabolism but the concept of folic acid antag onism was soon applied to the development of antibacterial and anti parasitic agents. Trimethoprim and sulfa drugs were among the first antibiotics developed and they also remain quite useful today for the treat ment of a variety of infections.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 152 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -The goal of this book is to present some modern aspects of nonlinear analysis. Some of the material introduced is classical, some more exotic. We have tried to emphasize simple cases and ideas more than complicated refinements. Also, as far as possible, we present proofs that are not classical or not available in the usual literature. Of course, only a small part of nonlinear analysis is covered. Our hope is that the reader - with the help of these notes - can rapidly access the many different aspects of the field. We start by introducing two physical issues: elasticity and diffusion. The pre sentation here is original and self contained, and helps to motivate all the rest of the book. Then we turn to some theoretical material in analysis that will be needed throughout (Chapter 2). The next six chapters are devoted to various aspects of elliptic problems. Starting with the basics of the linear theory, we introduce a first type of nonlinear problem that has today invaded the whole mathematical world: variational inequalities. In particular, in Chapter 6, we introduce a simple theory of regularity for nonlocal variational inequalities. We also attack the question of the existence, uniqueness and approximation of solutions of quasilinear and mono tone problems (see Chapters 5, 7, 8). The material needed to read these parts is contained in Chapter 2. The arguments are explained using the simplest possible examples.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 268 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -Everybody having even the slightest interest in analytical mechanics remembers having met there the Poisson bracket of two functions of 2n variables (pi, qi) f g ~(8f8g 8 8 ) (0.1) {f,g} = L. ~[ji - [ji~ , ;=1 p, q q p, and the fundamental role it plays in that field. In modern works, this bracket is derived from a symplectic structure, and it appears as one of the main in gredients of symplectic manifolds. In fact, it can even be taken as the defining clement of the structure (e.g., [TIl]). But, the study of some mechanical sys tems, particularly systems with symmetry groups or constraints, may lead to more general Poisson brackets. Therefore, it was natural to define a mathematical structure where the notion of a Poisson bracket would be the primary notion of the theory, and, from this viewpoint, such a theory has been developed since the early 19708, by A. Lichnerowicz, A. Weinstein, and many other authors (see the references at the end of the book). But, it has been remarked by Weinstein [We3] that, in fact, the theory can be traced back to S. Lie himself [Lie].Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 220 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -These notes are based on lectures given at the University of Virginia over the past twenty years. They may be viewed as a course in function theory for nonspecialists. Chapters 1-6 give the function-theoretic background to Hardy Classes and Operator Theory, Oxford Mathematical Monographs, Oxford University Press, New York, 1985. These chapters were written first, and they were origi nally intended to be a part of that book. Half-plane function theory continues to be useful for applications and is a focal point in our account (Chapters 5 and 6). The theory of Hardy and Nevanlinna classes is derived from proper ties of harmonic majorants of subharmonic functions (Chapters 3 and 4). A selfcontained treatment of harmonic and subharmonic functions is included (Chapters 1 and 2). Chapters 7-9 present concepts from the theory of univalent functions and Loewner families leading to proofs of the Bieberbach, Robertson, and Milin conjectures. Their purpose is to make the work of de Branges accessible to students of operator theory. These chapters are by the second author. There is a high degree of independence in the chapters, allowing the material to be used in a variety of ways. For example, Chapters 5-6 can be studied alone by readers familiar with function theory on the unit disk. Chapters 7-9 have been used as the basis for a one-semester topics course.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 264 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -The application of PDE-based control theory and the corresponding numerical algorithms to industrial problems have become increasingly important in recent years. This volume offers a wide spectrum of aspects of the discipline, and is of interest to mathematicians and scientists working in the field.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 340 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -The true history of physics can only be read in the life stories of those who made its progress possible. Matvei Bronstein was one of those for whom the vast territory of theoretical physics was as familiar as his own home: he worked in cosmology, nuclear physics, gravitation, semiconductors, atmospheric physics, quantum electrodynamics, astro physics and the relativistic quantum theory. Everyone who knew him was struck by his wide knowledge, far beyond the limits of his trade. This partly explains why his life was closely intertwined with the social, historical and scientific context of his time. One might doubt that during his short life Bronstein could have made truly weighty contributions to science and have become, in a sense, a symbol ofhis time. Unlike mathematicians and poets, physicists reach the peak oftheir careers after the age of thirty. His thirty years of life, however, proved enough to secure him a place in theGreaterSovietEncyclopedia. In 1967, in describing the first generation of physicists educated after the 1917 revolution, Igor Tamm referred to Bronstein as 'an exceptionally brilliant and promising' theoretician [268].Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 212 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -This book presents a unified approach for solving both stationary and nonstationary interpolation problems, in finite or infinite dimensions, based on the commutant lifting theorem from operator theory and the state space method from mathematical system theory. Initially the authors planned a number of papers treating nonstationary interpolation problems of Nevanlinna-Pick and Nehari type by reducing these nonstationary problems to stationary ones for operator-valued functions with operator arguments and using classical commutant lifting techniques. This reduction method required us to review and further develop the classical results for the stationary problems in this more general framework. Here the system theory turned out to be very useful for setting up the problems and for providing natural state space formulas for describing the solutions. In this way our work involved us in a much wider program than original planned. The final results of our efforts are presented here. The financial support in 1994 from the 'NWO-stimulansprogramma' for the Thomas Stieltjes Institute for Mathematics in the Netherlands enabled us to start the research which lead to the present book. We also gratefully acknowledge the support from our home institutions: Indiana University at Bloomington, Purdue University at West Lafayette, Tel-Aviv University, and the Vrije Universiteit at Amsterdam. We warmly thank Dr. A.L. Sakhnovich for his carefully reading of a large part of the manuscript. Finally, Sharon Wise prepared very efficiently and with great care the troff file of this manuscript; we are grateful for her excellent typing.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 604 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -This volume contains a selection of papers in modern operator theory and its applications. Most of them are directly related to lectures presented at the Inter national Workshop on Operator Theory and its Applications held at the University of Groningen (IWOTA-98) in Groningen, the Netherlands, from June 30-July 3, 1998. The workshop was attended by 97 mathematicians-of which 12 were PhD or postdoctoral students-from 19 countries. The program consisted of 19 plenary lectures of 40 minutes and 72 lectures of 30 minutes in 4 parallell sessions. The present volume reflects the wide range and rich variety of topics presented and discussed at the workshop. The papers deal with operator polynomials and analytic operator functions, with spectral problems of (partial) differential oper ators and related operator matrices, with interpolation, completion and extension problems, with commutant lifting and dilation, with Ricatti equations and real ization problems, with scattering theory, with problems from harmonic analysis, and with topics in the theory of reproducing kernel spaces and of spaces with an indefinite metric. All papers underwent the usual refereeing process.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 620 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -Brauer had already introduced the defect of a block and opened the way towards a classification by solving all the problems in defects zero and one, and by providing some evidence for the finiteness of the set of blocks with a given defect. In 1959 he discovered the defect group, and in 1964 Dade determined the blocks with cyclic defect groups.In 1978 Alperin and Broué discovered the Brauer category, and Broué and the author determined the blocks having a nilpotent Brauer category. In 1979, the author discovered the source algebra which determines all the other current invariants, representing faithfully the block ¿ and found its structure in the nilpotent blocks. Recently, the discovery by Rickard that all blocks with the same cyclic defect group and the same Brauer category have the same homotopic category focussed great interest on the new, loose relationship between blocks called Rickard equivalence.This book describes the source algebra of a block from the source algebra of a Rickard equivalent block and the source of the Rickard equivalence.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 276 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -Cet ouvrage, qui est la these de doctorat d'Etat que j'ai soutenue devant l'Universite de Provence aAix-en-Provence le 30 juin 1988, mais alaquelle j'ai toutefois apporte posterieurement certaines rectifications, a pour objet la comparaison structurale du Tractatus de Wittgenstein avec I'Ethique de Spinoza. Monsieur le Professeur Gilles-Gaston Granger, qui m'a confie le soin de cette etude comparative et en a suivi I'elaboration, et auquel je renou velle ici l'expression de ma respectueuse gratitude, a perl;u la pensee de Wittgenstein comme une transposition moderne de la doctrine de Spinoza et illui a paru interessant de comparer les oeuvres representatives de ces deux auteurs que sont le Tractatus et l'Ethique. Les travaux de Martial Gueroult m'ont guide dans mes recherches en vue d'approfondir le systeme de I'Ethique et j'ai egalement mis aprofit les critiques qui ont ete formulees ala soutenance de ma these par Madame le Professeur Elisabeth Schwartz, presidente du jury. Je remercie l'Universite de Bäle, la Freiwillige Akademische Gesell schaft aBäle et la fondation Berta Hess-Cohn aBäle qui ont bien voulu financer I'edition de cet ouvrage. Et je suis reconnaissant aux Editions Birkhäuser a Bäle et particulierement a Monsieur Albert Gomm de I'at tention qu'ils ont apportee ason impression tout en respectant, dans la mesure du possible, la presentation materielle de ma these de doctorat.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 424 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -The book reviews a large number of 1- and 2-dimensional equations that describe nonlinear phenomena in various areas of modern theoretical and mathematical physics. It is meant, above all, for physicists who specialize in the field theory and physics of elementary particles and plasma, for mathe maticians dealing with nonlinear differential equations, differential geometry, and algebra, and the theory of Lie algebras and groups and their representa tions, and for students and post-graduates in these fields. We hope that the book will be useful also for experts in hydrodynamics, solid-state physics, nonlinear optics electrophysics, biophysics and physics of the Earth. The first two chapters of the book present some results from the repre sentation theory of Lie groups and Lie algebras and their counterpart on supermanifolds in a form convenient in what follows. They are addressed to those who are interested in integrable systems but have a scanty vocabulary in the language of representation theory. The experts may refer to the first two chapters only occasionally. As we wanted to give the reader an opportunity not only to come to grips with the problem on the ideological level but also to integrate her or his own concrete nonlinear equations without reference to the literature, we had to expose in a self-contained way the appropriate parts of the representation theory from a particular point of view.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 316 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -Many physical problems are meaningfully formulated in a cylindrical domain. When the size of the cylinder goes to infinity, the solutions, under certain symmetry conditions, are expected to be identical in every cross-section of the domain. The proof of this, however, is sometimes difficult and almost never given in the literature. The present book partially fills this gap by providing proofs of the asymptotic behaviour of solutions to various important cases of linear and nonlinear problems in the theory of elliptic and parabolic partial differential equations.The book is a valuable resource for graduates and researchers in applied mathematics and for engineers. Many results presented here are original and have not been published elsewhere. They will motivate and enable the reader to apply the theory to other problems in partial differential equations.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 192 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -In der Bundesrepublik Deutschland überwachen die Behörden der Länder die Einhaltung der Vorschriften, die für das Inverkehrbringen und die Anwendung von Pflanzenschutzmitteln gelten. Das Pflanzenschutz-Kontrollprogramm ist ein bundesweit harmonisiertes Programm zur Überwachung pflanzenschutzrechtlicher Vorschriften. Die Durchführung und Berichterstattung der Kontrollen erfolgten nach gemeinsamen Standards der Länder auf Grundlage eines abgestimmten Handbuches. Die Festlegung von Kontrolltatbeständen und die Betriebsauswahl erfolgt durch die Länder; zusätzlich werden bundesweite Kontrollschwerpunkte festgelegt. Der vorliegende Bericht fasst die Ergebnisse des Jahres 2011 zusammen. Bundesweit wurden in 2.545 Handelsbetrieben Verkehrskontrollen durchgeführt und in 5.367 Betrieben der Landwirtschaft, des Gartenbaus und der Forstwirtschaft Betriebs- oder Anwendungskontrollen vorgenommen. Im Rahmen der Überwachung der Verordnung über Pflanzenschutzmittel und Pflanzenschutzgeräte (Pflanzenschutzmittelverordnung) wurden des Weiteren 70.063 Pflanzenschutzgeräte von amtlichen bzw. amtlich anerkannten Kontrollstellen überprüft. Die Zusammensetzung und physikalische, chemische und technische Eigenschaften von 197 Pflanzenschutzmitteln wurden untersucht.¿Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 44 pp. Deutsch.

Taschenbuch. Condizione: Neu. Neuware -M. LUCERTINI, A. MILLAN GASCA, AND F. NICOLO 1 Technology as Knowledge: The Case of Modern Engineering Systems In recent years scholars coming from the fields of history and philosophy of sci ence and technology have devoted much attention to the problem of 'technology as knowledge' and to the emergence of an autonomous engineering science in the Industrial Agel. This interest echoes a growing awareness among engineers of the independence of their conceptual approach with respect to other forms of knowl edge, linked to the consolidation of autonomous academic engineering research in th the 20 century. A careful examination of the nature of technological knowledge appears particularly valuable in view of the pervasive presence of technology in contemporary life and culture, not only as a result of its impressive achievements, but through the less obvious influence of its concepts and viewpoints as well. The activity of engineers and technicians has been traditionally based on the practical ability to cope with specific situations and to attain the corresponding specific goal by means of the design and realization of an artifact or structure, on the basis of past experience handed down by tradition and applied by means of trial-and-error and rule-of-thumb procedures. But the existence of a theoreti cal background and of principles underpinning this activity can be traced back to classical antiquity.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 268 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -Principles of Learning and Memory focuses on the most topical and central phenomena, which are discussed from an interdisciplinary point of view in five sections: formation, organization, consolidation, control, and adaptive specialization of memories. The editors present state-of-the-art reviews that cover the experimental analysis of behavior, as well as the biological basis of learning and memory, and that overcome traditional borders separating disciplines. The chapters present and evaluate core findings of human learning and memory that are obtained in different fields of research and on different levels of analysis (e.g. cellular, neural network, behavioral level). The volume provides an integrated pattern of results wherever this is possible. The reader acquires a broad and integrated perspective of human learning and memory based on current approaches. This textbook is of interest to researchers and advanced students in biology, cognitive psychology, neuroscience, and cognitive science.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 380 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -Die Erforschung des Baugrundes als wichtiger Bestandteil einer Baumaßnahme ist eine relativ junge Wissenschaft. Falsche Einschätzung der Baugrundverhältnisse und hieraus resultierende, zum Teil erhebliche Haftungsrisiken haben es notwendig werden lassen, der Einstufung der Bodenverhältnisse, der Methodik der Baugrunderkundung und der Berechnung der Gründungsart ein Regelwerk voranzustellen. Für den Bauherrn ist wichtig, dass nur ausreichende und regelgerechte Baugrunduntersuchung ihm die gewünschte Planungssicherheit, Kostensicherheit und Schadensfreiheit bietet. Das Buch informiert über die Verfahren der Baugrund- und Bauwerksanalysen, Instandsetzungsverfahren von Gründungen und die Schadensbeseitigung durch Verpresstechniken. Zahlreiche Beispiele aus der Praxis dokumentieren Sanierungsleistungen an historischen Gebäuden, Stützmauern und Brücken.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 252 pp. Deutsch.

Taschenbuch. Condizione: Neu. Neuware -Die fachgerechte Erbebensicherung von Bauwerken ist heute nicht mehr eine Frage der Erkenntnisse, sondern eine Frage der Ausbildung von Bauingenieuren und Architekten und somit der Umsetzung vorhandenen Wissens in die Praxis. Durch wenige gezielte Massnahmen konzeptioneller und konstruktiver Art sowie durch eine problemgerechte Berechnung und Bemessung kann das Schadenrisiko drastisch vermindert und ein hoher Schutzgrad gegen Einsturz erreicht werden. Das Buch ist auf die Bedürfnisse des praktisch tätigen Bauingenieurs ausgerichtet; mit seiner starken Gewichtung des erbebengerechten Entwurfs hilft es, konzeptionelle Fehler und Mängel zu vermeiden, da diese auch durch eine noch so ausgeklügelte ingenieurmässige Berechnung und Bemessung nicht kompensiert werden können. Das Buch gibt aber auch zahlreiche Hinweise zu aktuellen Forschungsthemen.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 316 pp. Deutsch.

Buch. Condizione: Neu. Neuware -Die in Europa bis Ende der 1980er Jahre bestehende Grenze zwischen unterschiedlichen Gesellschaftssystemen, insbesondere die innerdeutsche Grenze, hat die individuellen Biografien von Bürgern vital beeinflusst. Auch die Wissenschaftler, u.a. die Mathematiker, waren weitaus mehr betroffen, als nach außen hin sichtbar war. Der Autor, der das Ende der Teilung in der Mitte seiner beruflichen Laufbahn in Berlin erlebte, schildert in autobiografischen Skizzen die Spezifik dieser Situation, anknüpfend an Inhalte der Ausbildung in der Schule und des Studiums im Osten Deutschlands, bis hin zu Innenansichten aus Institutionen wie dem Karl-Weierstrass-Institut der Akademie der Wissenschaften in Berlin, anschließend der Max-Planck-Arbeitsgruppe Partielle Differentialgleichungen und Komplexe Analysis, sowie dem Institut für Mathematik an der Universität Potsdam. Beleuchtet werden weiterhin die erlebten Sichten der Gesellschaftssysteme auf eine exakte Wissenschaft wie die Mathematik, die Organisation in Instituten, Haltungen zur Zweckbestimmung reiner und angewandter Forschung in der Mathematik, Aspekte der Wissenschaftsförderung, sowie individuelle und teilweise kontroverse Standpunkte. Da Probleme um die Mathematik, etwa ihre Triebkräfte, das Zusammenspiel ihrer Spezialgebiete und ihr Einfluss auf Naturwissenschaften, Technologie und viele Bereiche des täglichen Lebens nicht immer leicht verständlich gemacht werden können, ist in der Darstellung ein überwiegend unterhaltsamer und teilweise unkonventioneller Ton gewählt. Er soll auch die Tragik ein wenig vergessen machen, die mit Verlusten von Potentialen und wissenschaftlichen Entwicklungsmöglichkeiten in dem vergangenen System verbunden war.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 268 pp. Deutsch.

Taschenbuch. Condizione: Neu. Neuware -One hundred years ago (1904) Hermann Minkowski [58] posed a problem: to re 2 construct an even function I on the sphere 8 from knowledge of the integrals MI (C) = fc Ids over big circles C. Paul Funk found an explicit reconstruction formula for I from data of big circle integrals. Johann Radon studied a similar problem for the Eu clidean plane and space. The interest in reconstruction problems like Minkowski Funk's and Radon's has grown tremendously in the last four decades, stimulated by the spectrum of new modalities of image reconstruction. These are X-ray, MRI, gamma and positron radiography, ultrasound, seismic tomography, electron mi croscopy, synthetic radar imaging and others. The physical principles of these methods are very different, however their mathematical models and solution meth ods have very much in common. The umbrella name reconstructive integral geom etryl is used to specify the variety of these problems and methods. The objective of this book is to present in a uniform way the scope of well known and recent results and methods in the reconstructive integral geometry. We do not touch here the problems arising in adaptation of analytic methods to numerical reconstruction algorithms. We refer to the books [61], [62] which are focused on these problems. Various aspects of interplay of integral geometry and differential equations are discussed in Chapters 7 and 8. The results presented here are partially new.Springer Nature c/o IBS, Benzstrasse 21, 48619 Heek 180 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -Most organisms and populations have to cope with hostile environments, threatening their existence. Their ability to respond phenotypically and genetically to these challenges and to evolve adaptive mechanisms is, therefore, crucial. The contributions to this book aim at understanding, from a evolutionary perspective, the impact of stress on biological systems. Scientists, applying different approaches spanning from the molecular and the protein level to individuals, populations and ecosystems, explore how organisms adapt to extreme environments, how stress changes genetic structure and affects life histories, how organisms cope with thermal stress through acclimation, and how environmental and genetic stress induce fluctuating asymmetry, shape selection pressure and cause extinction of populations. Finally, it discusses the role of stress in evolutionary change, from stress induced mutations and selection to speciation and evolution at the geological time scale. The book contains reviews and novel scientific results on the subject. It will be of interest to both researchers and graduate students and may serve as a text for graduate courses.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 348 pp. Englisch.