Springer berlin heidelberg jan 2012 (Oltre 1000 risultati)

Taschenbuch. Condizione: Neu. Neuware -The author's general aim has been to survey as wide a field of evidence as possible and this had involved excursions into subjects of which he has little first hand knowledge. This width of range also has necessitated a somewhat arbitrary selection of evidence and has prevented full discussion of any indi vidual problem. The author trusts that he has not misrepresented anyone's results or opinions, and if this has occurred, he can only plead in excuse the peculiar difficulty of giving a brief and yet accurate account of evidence of such a wide variety. The diagrams reproduced in the article have all been redrawn and in many cases the original figures or diagrams have been modified as, for instance, by recalculating dosage on the logarithmic scale. The original authors therefore have no direct responsibility for the diagrams in their present form. The author desires to thank Messrs Arnold and Co. for permitting the repro duction of Figs. 9 and 23 from similar figures which appeared in his book 'The Mode of Action of Drugs on Cells'; portions of other figures from this book also have been reproduced in modified form. The author also desires to thank Dr. J. M. ROBSON for help in correction of the proofs. Edinburgh, July, 1937. A. J. CLARK. Contents.…

Buch. Condizione: Neu. Neuware -The Earth's atmosphere is often portrayed as a thin and finite blanket covering our planet, separate from the emptiness of outer space. In reality, the transition is gradual and a tiny fraction of the atmophere gases is still present at the altitude of low orbiting satellites. The very high velocities of these satellites ensure that their orbital motion can still be considerably affected by air density and wind. This influence can be measured using accelerometers and satellite tracking techniques.The opening chapters of this thesis provide an excellent introduction to the various disciplines that are involved in the interpretation of these observations: orbital mechanics, satellite aerodynamics and upper atmospheric physics. A subsequent chapter, at the heart of this work, covers advances in the algorithms used for processing satellite accelerometry and Two-Line Element (TLE) orbit data. The closing chapters provide an elaborate analysis of the resulting density and wind products, which are generating many opportunities for further research, to improve the modelling and understanding of the thermosphere system and its interactions with the lower atmosphere, the ionosphere-magnetosphere system and the Sun. 200 pp. Englisch.…

Taschenbuch. Condizione: Neu. Neuware -Im ersten Band des Buches über 'Technische Elektronik' wurde die Grundlagen der Hochvakuum-, Gas- und Festkörper-Entladungsgeräte, die wichtigsten Verfahren zur Herstellung dieser Geräte und der Vakuumtechnik behandelt. Beide Bände entstanden aus Vorlesungen über Technische Elektronik, die von 1947 bis 1956 an der Universität Princeton und von 1956 bis heute an der Technische Hochschule München gehalten wurden. Der Inhalt des zweiten Bandes ist in zwei Kapitel gegliedert: im ersten werden die stromsteuernden Hochvakuum-, Gas- und Festkörper Entladungsgeräte, im zweiten Teil die elektronenoptischen Geräte (einschließlich der Teilchenbeschleuniger) behandelt.…

Taschenbuch. Condizione: Neu. Neuware -Dieser praxisorientierte Leitfaden vermittelt die grundlegenden Kenntnisse der Konstruktionsprinzipien von Industrierobotern mit Schwerpunkt auf dem methodischen Vorgehen im Rahmen der Entwicklungs- und Berechnungsarbeiten. 372 pp. Deutsch.

Taschenbuch. Condizione: Neu. Neuware -Die Bedeutung der Erddrucktheorie, die vor zwei Jahrhunderten aus der Kriegswissenschaft des Festungsbaues herauswuchs, wurde im Laufe der technischen Entwicklung immer groBer. Es stellte sich heraus, daB sie, weit iiber die Bemessung der Stiitzmauer, beim Entwurf jeder Tief baukonstruktion, bei jeder Griindung, bei jedem Tragfahigkeitsproblem usw. eine wesentliche und wichtige Rolle spielt. Das brachte mit sich, daB diese Theorien sich bedeutend entwickelten und verzweigten. Auf der heutigen Stufe der Wissenschaft erwies es sich daher als wiinschenswert, die Theorien, welchen der Ingenieur heute begegnet, kritisch zusammen zufassen und ihre theoretischen Grundlagen darzulegen. Bei der Abfassung dieses Buches habe ich dieses Ziel vor Augen gehalten. Aus der auBerordentlich reichen Literatur der Erddrucktheo rien konnten aber selbstredend nur jene Ergebnisse behandelt werden, die sowohl in theoretischer wie auch praktischer Hinsicht gleichfalls hervorzuheben sind. Vollstandigkeit habe ich nicht angestrebt - ich wollte dies auch nicht tun. Das Problem des Erddruckes auf biegsame Spundwande habe ich zum Beispiel nicht erwahnt, zumal die neueste deutsche Fachliteratur auf diesem Gebiet besonders reichhaltig ist. Der Leser wird im Buch alte und neue Erddrucktheorien und -methoden vor finden, die ich mit fachlicher Hingabe, mit viel Kopfzerbrechen, aber auch mit wahrer Freude beschrieben habe; ich trachtete danach, die Ansatze, die theoretischen Grundlagen in einfacher und iibersichtlicher Form zu bringen und den Anwendungsbereich iiberall klar a'Jzugrenzen. An einigen Stellen wurde bisher unveroffentlichtes Material wiedergegeben, In vielen Fallen beabsichtigte ich auch, die praktische Arbeit mit Hille von Tabellen und Diagrammen zu erleichtern.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Founded in 1971, the Saint-Flour Probability Summer School is organised every year by the mathematics department of the Université Blaise Pascal at Clermont-Ferrand, France, and held in the pleasant surroundings of an 18th century seminary building in the city of Saint-Flour, located in the French Massif Central, at an altitude of 900 m.It attracts a mixed audience of up to 70 PhD students, instructors and researchers interested in probability theory, statistics, and their applications, and lasts 2 weeks. Each summer it provides, in three high-level courses presented by international specialists, a comprehensive study of some subfields in probability theory or statistics. The participants thus have the opportunity to interact with these specialists and also to present their own research work in short lectures.The lecture courses are written up by their authors for publication in the LNM series. 476 pp. Englisch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Contents: Durrett, Rick: Ten lectures on particle systems.- Liggett, T.M.: The stochastic evolution of infinite systems of interacting particles.- Spitzer, Frank L.:Introduction aux processus de Markov à paramètre dans Z 340 pp. Bengali, Englisch, Französisch.…

Taschenbuch. Condizione: Neu. Neuware - Mit dermatologischen Krankheitsbildern sehen sich zunehmend auch Ärzte nichtdermatologischer Fachrichtungen konfrontiert. Der Rückgriff auf ein entsprechendes aktuelles Nachschlagewerk wird daher unerläßlich. In der zweiten Auflage des Bildlexikons der Dermatologie werden alle Krankheitsbilder systematisch und prägnant dargestellt und in zahlreichen Farbabbildungen verdeutlicht. Der Dermatologe erhält mit diesem Buch ein kurzes, praktisches Nachschlagewerk, der Praktiker und niedergelassene Arzt anderer Fachrichtungen einen ausführlichen Ratgeber.…

Buch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Among the group of physics honors students huddled in 1957 on a Colorado mountain watching Sputnik bisect the heavens, one young scientist was destined, three short years later, to become a key player in America's own top-secret spy satellite program. One of our era's most prolific mathematicians, Karl Gustafson was given just two weeks to write the first US spy satellite's software. The project would fundamentally alter America's Cold War strategy, and this autobiographical account of a remarkable academic life spent in the top flight tells this fascinating inside story for the first time. Gustafson takes you from his early pioneering work in computing, through fascinating encounters with Nobel laureates and Fields medalists, to his current observations on mathematics, science and life. He tells of brushes with death, being struck by lightning, and the beautiful women who have been a part of his journey. 192 pp. Englisch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This volume presents a mathematical development of a recent approach to the modeling and simulation of turbulent flows based on methods for the approximate solution of inverse problems. The resulting Approximate Deconvolution Models or ADMs have some advantages over more commonly used turbulence models - as well as some disadvantages. Our goal in this book is to provide a clear and complete mathematical development of ADMs, while pointing out the difficulties that remain. In order to do so, we present the analytical theory of ADMs, along with its connections, motivations and complements in the phenomenology of and algorithms for ADMs. 196 pp. Englisch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This monograph treats one case of a series of conjectures by S. Kudla, whose goal is to show that Fourier of Eisenstein series encode information about the Arakelov intersection theory of special cycles on Shimura varieties of orthogonal and unitary type. Here, the Eisenstein series is a Hilbert modular form of weight one over a real quadratic field, the Shimura variety is a classical Hilbert modular surface, and the special cycles are complex multiplication points and the Hirzebruch-Zagier divisors. By developing new techniques in deformation theory, the authors successfully compute the Arakelov intersection multiplicities of these divisors, and show that they agree with the Fourier coefficients of derivatives of Eisenstein series.This monograph treats one case of a series of conjectures by S. Kudla, whose goal is to show that Fourier of Eisenstein series encode information about the Arakelov intersection theory of special cycles on Shimura varieties of orthogonal and unitary type. Here, the Eisenstein series is a Hilbert modular form of weight one over a real quadratic field, the Shimura variety is a classical Hilbert modular surface, and the special cycles are complex multiplication points and the Hirzebruch Zagier divisors. By developing new techniques in deformation theory, the authors successfully compute the Arakelov intersection multiplicities of these divisors, and show that they agree with the Fourier coefficients of derivatives of Eisenstein series. 152 pp. Englisch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Stroock, Daniel W.: Some applications of stochastic calculus to partial differential equations.- Ikeda, Nobuyuki: Probabilistic methods in the study of asymptotics.- Nualart, David: Analysis on Wiener space and anticipating stochastic calculus. 356 pp. Englisch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Information collected by satellites recently sent by the USA, the European Space Agency, Japan, Germany, the United Kingdom, and Russia to monitor the Sun has changed our knowledge and understanding of the Sun, particularly its effect on Earth. This book presents these findings in a way that will be welcomed by amateur astronomers, students, educators and anyone interested in the Sun. Enhanced by many colour photographs, the book combines newly acquired scientific understanding with detailed descriptions of features visible on the Sun's surface and in its atmosphere.In the past, observing the Sun has been left to academics with specialised instruments, since solar observation has been unsafe because of the risk of eye damage. This book explains how amateur astronomers can safely observe the various solar phenomena using special hydrogen-alpha telescopes that are not too expensive. Amateurs can now make a positive contribution to science by monitoring the Sun as professionals do. Amateurs can also access the solar images taken by satellites via the internet. This book helps readers interpret and understand what these images are showing about the Sun, including the latest 3D images. Solar observers will enjoy comparing their own solar telescope observations with those produced by space probes such as SDO, SOHO, Hinode and STEREO, and further enjoy learning about transits, eclipses, and space weather and how the Sun compares to other stars in the universe. 264 pp. Englisch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Ce huitième chapitre du Livre d'Algèbre, deuxième Livre des Éléments de mathématique, est consacré à l'étude de certaines classes d'anneaux et des modules sur ces anneaux.Il couvre les notions de module et d'anneau noethérien et artinien, ainsi que celle de radical. Ce chapitre décrit également la structure des anneaux semi-simples. Nous y donnons aussi la définition de divers groupes de Grothendieck qui jouent un rôle universel pour les invariants de modules et plusieurs descriptions du groupe de Brauer qui intervient dans la classification des anneaux simples.Une note historique en fin de volume, reprise de l'édition précédente, retrace l'émergence d'une grande partie des notions développées.Ce volume est une deuxième édition entièrement refondue de l'édition de 1958. 500 pp. Französisch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Modern organic synthesis has paid much attention to the chemistry of small carbocycles. Vinylidenecyclopropanes (VDCPs), which have strained cyclopropyl group connected with an allene moiety and yet are thermally stable and reactive substances in organic chemistry, are versatile intermediates in organic synthesis. In this volume, Dr. Lixiong Shao, Dr. Jianmei Lu and Prof. Dr. Min Shi review their investigations on the chemistry of VDCPs, mainly including the preparation, the reactivities upon treatment with Lewis or Brønsted acid, as well as transition metal catalysts and some other miscellaneous analogues. The contributions aroused a renaissance of cationic intermediates in the chemistry of VDCPs. 80 pp. Englisch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The book consists of interviews with leading climate scientists. Experts on different aspects of the topic explain their own field and give their opinion on general questions concerning climate change. The interviews cover both fundamental research (climate modeling, global warming, sea level change, melting of the ice caps, natural hazards) and impact assesment (adaption, mitigation, economic impacts and costs of climate change). The goal is to provide the reader with first-hand information on the current state of climate research. 64 pp. Englisch. …

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Stress, high blood pressure, smoking, pollution, fast foods, overweight, excessive travelling, surgery, less movement are common features in our modern life. These features are risky for blood clotting disorders. According to WHO, over 29% of the total mortalities worldwide are due to thrombosis. By the year, 2020 cardiovascular diseases (CVDs) may cause an estimated 25 million deaths per year, thus antithrombotic therapy is of great interest. The available thrombolytic agents such as urokinase are highly expensive, antigenic, quite unspecific, pyretogenic and hemorrhagenic. Therefore, the production of fibrinolysing enzymes, which rapidly dissolute thrombi within the vascular tree, without the detriments by microorganisms, as described in this book, is the desirable aim of today's research. 88 pp. Englisch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book uses a computable general equilibrium framework to eval uate recent value-added tax reform proposals in the European Union from a welfare point of view. After the publication of the 'White Paper' (1985) on the completion of the internal European market, an intense and heated debate about tax impediments to free trade set in. According to the original plans of the Commission of the European Union, not only physical border controls but also fiscal frontiers within the European Union would have been abolished on New Year's Day 1993. With respect to value added taxation this amounted to replacing the destination by the origin principle. Even though the origin principle had been favored by some economists from the establishment of a common European value-added tax system, time was not yet ripe for this change. In December 1991, the ECOFIN Council could only agree on the so called transitional system. In essence, these transitional arrangements maintain the destination principle as far as possible but shift the border tax procedure from national frontiers to firms. The transitional system is supposed to expire on December 31, 1996, with the final solution for value-added taxation in the European Union being decided upon by the ECOFIN Council until December, 1995. In the event of no decision the transitional arrangements will be continued. The most likely solution will be a switch to the origin principle combined with some clearing mechanism to prevent major revenue reallocations between member states. 252 pp. Englisch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The thirteen essays of this book deal with various aspects of production manage ment which have shown a growing importance in research, teaching and practice within the last years and are partly neglected in the literature. The contents range from theoretical issues to case studies. Significant relations among different essays (chapters) give rise to group them into four major parts dealing with separate themes of production management: - fundamental organizational aspects of the production process, - general problems and modern concepts of materials management, - joint production with surplus, waste and hazardous byproducts, - production aspects of cutting stock and trim loss problems. Moreover, there is a strong material connection between the contributions to this volume because they all are based on a common conceptual framework emphasizing the production theoretic foundation. The collection of papers in this book is also designed to provide a fairly comprehensive picture of scientific work in the field of production management done during the last years at the Institute of Production Economics of the Fern universiUit in Hagen, partly in cooperation with other scientists. Since all but two articles have not been published in English before, the reader gets quite a new view on the results of this recent research. 240 pp. Englisch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Do we really know the critical phenomena that are linked to how enterprises function and the dynamics of their relationships with customers, suppliers and competitors Are their decision-making processes founded upon a set of performance measurements that were accurately designed and systematically elaborated The above questions are the focus of this book, as is the following premise: enterprises need a system to measure their critical performances so they can be managed effectively; metaphorically speaking, enterprises need a 'management dashboard' to serve as a navigational aid. A dashboard to show - with as few distortions as possible - the pattern of key variables that characterizes the specific formula enterprises use to face their competitive and social environment. 144 pp. Englisch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Business Intelligence (BI) promises an organization the capability of collecting and analyzing internal and external data to generate knowledge and value, providing decision support at the strategic, tactical, and operational levels. Business Intelligence is now impacted by the Big Data phenomena and the evolution of society and users, and needs to take into account high-level semantics, reasoning about unstructured and structured data, and to provide a simplified access and better understanding of diverse BI tools accessible trough mobile devices. In particular, BI applications must cope with additional heterogeneous (often Web-based) sources, e.g., from social networks, blogs, competitors', suppliers', or distributors' data, governmental or NGO-based analysis and papers, or from research publications. The lectures held at the First European Business Intelligence Summer School (eBISS), which are presented here in an extended and refined format, cover not only established BI technologies like data warehouses, OLAP query processing, or performance issues, but extend into new aspects that are important in this new environment and for novel applications, e.g., semantic technologies, social network analysis and graphs, services, large-scale management, or collaborative decision making. Combining papers by leading researchers in the field, this volume will equip the reader with the state-of-the-art background necessary for inventing the future of BI. It will also provide the reader with an excellent basis and many pointers for further research in this growing field. 220 pp. Englisch. …

Buch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Mathematical Modeling for Complex Fluids and Flows provides researchers and engineering practitioners encountering fluid flows with state-of-the-art knowledge in continuum concepts and associated fluid dynamics. In doing so it supplies the means to design mathematical models of these flows that adequately express the engineering physics involved. It exploits the implicit link between the turbulent flow of classical Newtonian fluids and the laminar and turbulent flow of non-Newtonian fluids such as those required in food processing and polymeric flows.The book develops a descriptive mathematical model articulated through continuum mechanics concepts for these non-Newtonian, viscoelastic fluids and turbulent flows. Each complex fluid and flow is examined in this continuum context as well as in combination with the turbulent flow of viscoelastic fluids. Some details are also explored via kinetic theory, especially viscoelastic fluids and their treatment with the Boltzmann equation. Both solution and modeling strategies for turbulent flows are laid out using continuum concepts, including a description of constructing polynomial representations and accounting for non-inertial and curvature effects.Ranging from fundamental concepts to practical methodology, and including discussion of emerging technologies, this book is ideal for those requiring a single-source assessment of current practice in this intricate yet vital field. 284 pp. Englisch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Silicone oil was introduced into ophthalmic surgery by Paul Cibis in the early 1960's in an attempt to treat giant retinal tears and cases where retinal detachment had failed to respond to conventional scleral buckling tech niques. His understanding of the nature of vitreous pathology and how it related to complex retinal detachment laid the foundation for modern vit reoretinal surgery. Cibis's success with these problems together with his rationale for sepa rating membranes from the retina led others to try their hand at learning his techniques. At the same time much criticism was levelled at the concept of injecting what was regarded as a foreign material into the eye, as well as to the whole idea of operating within the vitreous cavity. Some of this was personal, some due to a lack of understanding of the underlying pathology and some due to disappointment following surgical failure us ing the new methods. Early results were certainly encouraging but it was not until the advent of pars plana vitrectomy that it became possible to develop more refined methods in combination with the use silicone oil so that much better results could be obtained. 184 pp. Englisch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This volume is a revised and enlarged version of Chapters 1 and 2 of a book with the same title, published in Romanian in 1968. The revision resulted in a new book which has been divided into two parts because of the large amount of new material. The present part is intended to introduce mathematicians and biologists with a strong mathematical and probabilistic background to the study of stochastic processes. We hope some readers will be able to discover by themselves the new features of our treatment such as the inclusion of some unusual topics, the special attention paid to some usual topics, and the grouping of the material. We draw the reader's attention to the numbering, because there are structural differences between the two parts. In Part I there are Chapters, Sections, Subsections, Paragraphs and Subparagraphs. Thus the numbering a. b. c. d. e refers to Subparagraph e of Paragraph d of Subsection c of Section b of Chapter a. Definitions, theorems lemmas and propositions are numbered a. b. n, n = 1,2, . . . , where a indicates the chapter and b the section. In Part II there are Sections, Subsections, Paragraphs, and SUbparagraphs. Thus the numbering a. b. c. d refers to Subparagraph d of Paragraph c of Subsection b of Section a. Theorems and lemmas are numbered a. n, n = 1, 2, . . . , where a indicates the section. 332 pp. Englisch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The Second Autumn Course on Mathematical Ecology was held at the Intern ational Centre for Theoretical Physics in Trieste, Italy in November and December of 1986. During the four year period that had elapsed since the First Autumn Course on Mathematical Ecology, sufficient progress had been made in applied mathemat ical ecology to merit tilting the balance maintained between theoretical aspects and applications in the 1982 Course toward applications. The course format, while similar to that of the first Autumn Course on Mathematical Ecology, consequently focused upon applications of mathematical ecology. Current areas of application are almost as diverse as the spectrum covered by ecology. The topiys of this book reflect this diversity and were chosen because of perceived interest and utility to developing countries. Topical lectures began with foundational material mostly derived from Math ematical Ecology: An Introduction (a compilation of the lectures of the 1982 course published by Springer-Verlag in this series, Volume 17) and, when possible, progressed to the frontiers of research. In addition to the course lectures, workshops were arranged for small groups to supplement and enhance the learning experience. Other perspectives were provided through presentations by course participants and speakers at the associated Research Conference. Many of the research papers are in a companion volume, Mathematical Ecology: Proceedings Trieste 1986, published by World Scientific Press in 1988. This book is structured primarily by application area. Part II provides an introduction to mathematical and statistical applications in resource management. 512 pp. Englisch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -An exciton is an electronic excitation wave consisting of an electron-hole pair which propagates in a nonmetallic solid. Since the pioneering research of Fren kel, Wannier and the Pohl group in the 1930s, a large number of experimental and theoretical studies have been made. Due to these investigations the exciton is now a well-established concept and the electronic structure has been clarified in great detail. The next subjects for investigation are, naturally, dynamical processes of excitons such as excitation, relaxation, annihilation and molecule formation and, in fact, many interesting phenomena have been disclosed by recent works. These excitonic processes have been recognized to be quite important in solid-state physics because they involve a number of basic interactions between excitons and other elementary excitations. It is the aim of this quasi monograph to describe these excitonic processes from both theoretical and experimental points of view. we take a few To discuss and illustrate the excitonic processes in solids, important and well-investigated insulating crystals as playgrounds for excitons on which they play in a manner characteristic of each material. The selection of the materials is made in such a way that they possess some unique properties of excitonic processes and are adequate to cover important interactions in which excitons are involved. In each material, excitonic processes are described in detail from the experimental side in order to show the whole story of excitons in a particular material. 548 pp. Englisch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Over the last two decades, the search for a compact, high-power semiconductor source has produced many designs and concepts for monolithic diode-laser arrays and optical amplifiers. However, only a few design approaches have emerged with the potential for producing high-power, high-brightness monolithic sources. Although semiconductor-diode lasers are the most compact, highest gain and most efficient laser sources, challenges remain in developing structures that will produce high-quality, diffraction-limited output beams. This book presents and analyzes the results of work performed over the last twenty years in the development of high-brightness diode-laser arrays. 416 pp. Englisch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -There are currently many practical situations in which one wishes to determine the coefficients in an ordinary or partial differential equation from known functionals of its solution. These are often called 'inverse problems of mathematical physics' and may be contrasted with problems in which an equation is given and one looks for its solution under initial and boundary conditions. Although inverse problems are often ill-posed in the classical sense, their practical importance is such that they may be considered among the pressing problems of current mathematical re search. A. N. Tihonov showed [82], [83] that there is a broad class of inverse problems for which a particular non-classical definition of well-posed ness is appropriate. This new definition requires that a solution be unique in a class of solutions belonging to a given subset M of a function space. The existence of a solution in this set is assumed a priori for some set of data. The classical requirement of continuous dependence of the solution on the data is retained but it is interpreted differently. It is required that solutions depend continuously only on that data which does not take the solutions out of M. 164 pp. Englisch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -One of the great intellectual challenges for the next few decades is the question of brain organization. What is the basic mechanism for storage of memory What are the processes that serve as the interphase between the basically chemical processes of the body and the very specific and nonstatistical operations in the brain Above all, how is concept formation achieved in the human brain I wonder whether the spirit of the physics that will be involved in these studies will not be akin to that which moved the founders of the 'rational foundation of thermodynamics'. C. N. Yang! 10 The human brain is said to have roughly 10 neurons connected through about 14 10 synapses. Each neuron is itself a complex device which compares and integrates incoming electrical signals and relays a nonlinear response to other neurons. The brain certainly exceeds in complexity any system which physicists have studied in the past. Nevertheless, there do exist many analogies of the brain to simpler physical systems. We have witnessed during the last decade some surprising contributions of physics to the study of the brain. The most significant parallel between biological brains and many physical systems is that both are made of many tightly interacting components. 380 pp. Englisch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The international symposium organized by the Italian Study Group on Cardiomyopathies (SPIC) and planned by the organiz ing and scientific committees opened with a review of the history of cardiomyopathy over the last 30 years by Goodwin, London (UK) and continued with presentations on all aspects of hyper trophic and dilated cardiomyopathy by a wide spectrum of inter national experts. This book includes mainly the invited contributions, but there are also many original oral presentations. Hypertrophic cardiomyopathy is well addressed by papers on natural history, ventricular function, ischaemia and arrhythmia. Of particular interest is the note by Bonow, National Heart Lung and Blood Institute (NHLBI; USA), on the effect of beta-adrenergic stimulation with isoprenalin in increasing the rate and extent of left ventricular relaxation, beta-adrenergic blocking agents having no such effect. In contrast, verapamil improves ventricular relaxation as would be expected. These results challenge accepted belief in some ways and indicate that multiple factors - both passive and active - acting on the left ventricle, such as ischaemia, asynchrony, altered left ventricu lar loading and intracellular levels of calcium ions, are all oper ating. These aspects are the more interesting in view of the recent reports of an increase in calcium-channel receptors, but not in beta-adrenergic receptors, in hypertrophic cardiomyo pathy. 504 pp. Englisch.…