Springer vienna jan 2012 (373 risultati)
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Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, GermaniaBuchWeltWeit Ludwig Meier e.K.
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Taschenbuch. Condizione: Neu. Neuware -Del' aus Fachkreisen mehrfach gegebenell freundlichen Anregung fulgelld, habe ieh es unternommen, den beiden Spezialbiichern 'Rahmentragwerke und Dureh lauftriiger' sowie 'Die CRoss Methode und ihre praktisehe Anwendung'; nun das schon seit liingerer Zeit geplante dritte Werk - 'Elementare…Baustatik' - folgen zu lassen. Hierin wird versucht, die Orundlagen der Baustatik und die Tragerlehre unter Einbeziehung des Durehlauftriigers und der einfacheren Rahmen so darzu legen, daB auch ohne Kenntnisse der hoheren Mathematik aIle wichtigen statischen Zusammenhiinge in ihrem Wesen klar erkannt werden konnen. Neben diesell rein theoretischen Anforderungen ist aber iiberall darauf Bedacht genommen, die jeweils gewonnenen Erkenntnisse fiir den praktisehen Gebraueh iibersichtlich zusammen zufassen und ihre Anwendung sofort an zweckmiil3ig gewiihlten Einfiihrungs. lmd Ubungsbeispielen zu zeigen. Diese unmittelbare Verbindung zwischen theoretischer Darlegung und praktischer Anwendung bringt erfahrungsgemiiB nicht nUl' bedeutelllie Erleichterungen beim Studium, sundel'll macht den Anfiinger auch rascher und sicherer mit den Grundbegriffen del' Baustatik und den Besonderheiten del' ver schiedenen Tragsysteme vertraut. Bei allen Erliiuterungen und Betrachtungl'n wird ausgiebig von bildlichen Darstellungen Gebrauch gemacht; mit deren Hilfe konnen die maBgebenden Zusammenhange hei del' Behandlung der verschiedellen Probleme und Aufgaben wesentlich anschaulicher und exakter zum Ausdruck ge bracht werden, als dies selbst durch priignanteste :Formulierungen allein moglich ware. Nur bei gleichzeitiger Anwendung beider Ausdrucksmittel - Wort und Eild - kann ein HochstmaB an Klarheit in allen Darlegungen erzielt werden. Fiir die Gliederung und methodische Behandlung des Stoffes waren nebell rein sachlichen Anforderungen auch padagogische Gesichtspunkte maBgebend. 316 pp. Deutsch.
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Taschenbuch. Condizione: Neu. Neuware -Vor 20 J ahren sind die ersten stereotaktischen Eingriffe im Be reich der Stammganglien durch SPIEGEL und WYCIS als Operations methode in die Neurochirurgie eingefiihrt worden. Diese Methode hat sich bald fiir die symptomatische Behandlung der Parkinson schen Krankheit durchgesetzt und bewa…hrt. Durch ihre Anwendung ist das arztliche Interesse fiir diese von JAMES PARKINSON 1817 erst mals beschriebene Krankheit erneut geweckt und in hohem MaBe angeregt worden, und in den letzten J ahren sind infolgedessen neue Einsichten in pathogenetischer, anatomophysiologischer, biochemi scher und therapeutischer Hinsicht gewonnen worden. Das Bemii hen um diese Krankheit hat auch die anatomische und physiolo gische Grundlagenforschung der Bewegungsfunktionen intensiv an geregt und die Differenzierung in pyramidales und extrapyramidales motorisches System zur kritischen Diskussion gestellt. In der vorliegenden Monographie ist es das Anliegen des Verfassers, die neuen, in der ganzen Weltliteratur niedergelegten anatomo physiologischen, biochemischen und klinischen Einsichten zusam menzustellen und gegeneinander abzuwagen. Da praktisch auf allen Sektoren zum Teil widerspruchsvolle Ansichten und Ergebnisse vor liegen, kann eine Synthese durch den Autor nicht erwartet werden. Die Monographie eignet sich aber dank der Fiille der zitierten und verarbeiteten Publikationen als ein vorziigliches Nachschlagewerk und als Ausgangspunkt fiir die weitere Forschung.
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Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, GermaniaBuchWeltWeit Ludwig Meier e.K.
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Taschenbuch. Condizione: Neu. Neuware -Knapp und praxisorientiert beschreibt das Handbuch die wichtigsten Erkrankungen im Alter.o Morphologische und pathophysiologische Grundlagen der Erkrankungen, Symptome und adäquate Theorieno Besonders ausführlich: Herz-Kreislauf-Erkrankungen, die Hypertonie mit ihren kardialen, renalen und…zerebralen Komplikationen, Nierenerkrankungen, Diabetes mellitus, Stürze im Altero Zusätzliche Schwerpunkte: die häufigsten Karzinome und deren Behandlung, Pharmakokinetik, Pharmakodynamik.Ein Standardwerk zum raschen Nachschlagen, das Sie mit aktuelle Praxis-Informationen und neuesten Literaturhinweisen zuverlässig bei Ihrer Diagnostik und Therapie unterstützt. 388 pp. Deutsch.
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Taschenbuch. Condizione: Neu. Neuware - Vor 20 J ahren sind die ersten stereotaktischen Eingriffe im Be reich der Stammganglien durch SPIEGEL und WYCIS als Operations methode in die Neurochirurgie eingefiihrt worden. Diese Methode hat sich bald fiir die symptomatische Behandlung der Parkinson schen Krankheit durchgesetzt und bew…ahrt. Durch ihre Anwendung ist das arztliche Interesse fiir diese von JAMES PARKINSON 1817 erst mals beschriebene Krankheit erneut geweckt und in hohem MaBe angeregt worden, und in den letzten J ahren sind infolgedessen neue Einsichten in pathogenetischer, anatomophysiologischer, biochemi scher und therapeutischer Hinsicht gewonnen worden. Das Bemii hen um diese Krankheit hat auch die anatomische und physiolo gische Grundlagenforschung der Bewegungsfunktionen intensiv an geregt und die Differenzierung in pyramidales und extrapyramidales motorisches System zur kritischen Diskussion gestellt. In der vorliegenden Monographie ist es das Anliegen des Verfassers, die neuen, in der ganzen Weltliteratur niedergelegten anatomo physiologischen, biochemischen und klinischen Einsichten zusam menzustellen und gegeneinander abzuwagen. Da praktisch auf allen Sektoren zum Teil widerspruchsvolle Ansichten und Ergebnisse vor liegen, kann eine Synthese durch den Autor nicht erwartet werden. Die Monographie eignet sich aber dank der Fiille der zitierten und verarbeiteten Publikationen als ein vorziigliches Nachschlagewerk und als Ausgangspunkt fiir die weitere Forschung.
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Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, GermaniaBuchWeltWeit Ludwig Meier e.K.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This volume contains the written versions of lectures held at the '23. Internationale Universit~tswochen fUr Kernphysik' in Schladming, Austria, in February 1984. Once again the generous support of our sponsors, the Austrian Minist…ry of Science and Research, the Styrian Government and others, had made it possible to organize this school. The aim of the topics chosen for the meeting was to present different aspects of stochastic methods and techniques. These methods have opened up new ways to attack problems in a broad field ranging from quantum mechanics to quantum field theory. Thanks to the efforts of the lecturers it was possible to take this development into account and show relations to areas where stochastic methods have been used for a long time. Due to limited space only short manuscript versions of the many seminars presented could be included. The lecture notes were reexamined by the authors after the school and are now published in their final form. It is a pleasure to thank all the lecturers for their efforts which made it possible to speed up publication. Thanks are also due to Mrs. Neuhold for her careful typing of the notes. H. Mitter L. Pittner Acta Physica Austriaca, Suppl. XXVI, 3-52 (1984) by Springer-Verlag 1984 STOCHASTIC PROCESSES - QUANTUM PHYSICS+ by L. STREIT Universitat Bielefeld BiBoS D-4800 Bielefeld. FR Germany I. 460 pp. Englisch.
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Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, GermaniaBuchWeltWeit Ludwig Meier e.K.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -I. Introduction In his biography 'Arrow in the Blue' the author Arthur Koestler suggests ironically that the fate of an individual may be predicted by examining the content of the newspapers at birth. Adenoviruses were discovered i…n 1953 (ROWE et al. , 1953; HILLEMAN and WERNER, 1954). At this time the Salk poliomyelitis vaccine was developed (SALK et al. , 1954) and in the same year the discovery of the double helical structure of DNA (WATSON and CRICK, 1953) and the plaque assay for one animal virus (DULBECCO and VOGT, 1953) was announced. Thus, this new group of viruses was born with great hopes for progress in molecular biology and for the control of animal virus infections. In the short interval be tween 1953 and 1956 the adenoviruses were discovered, methods for laboratory diagnosis and serotyping were established, the epidemiology was clarified and a highly effective vaccine was developed and approved (for a review see HILLE MAN, 1966). Succeeding years showed, however, that the vaccines were contami nated with the oncogenic SV 40 virus and that the adenoviruses themselves were tumorigenic. Since the discovery of adenoviruses animal virology was developed into a quantitative science offering explanation for viral functions at the molecular level. Precise biochemical tools to characterize the genome and its transcription products as well as the structural proteins of these viruses are now available. 128 pp. Englisch.
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Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, GermaniaBuchWeltWeit Ludwig Meier e.K.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The main task of an experimental talk at a theoreticians school should probably be a tempering one. In this respect, e+e- physics may have been a bad choice. The field has so rapidly developed and dis coveries are chasing each othe…r that much of the optimism of theory has passed over to e+e- experimentalists. A vast amount of experimental material arose from the simple reaction of e+e- annihilation. I, therefore, have to limit myself to recent results - most of them less than one year old. The paper will be organized as follows: In the first lecture (chapter I and II) I will give - a short introduction to e e machines and cross sections. In particular I will discuss the total cross section an- after a short summary on charm - concentrate on the third generation of auarks and leptons: the heavy lepton T and the T family. In my second lecture the various aspects of event topologies in the DORIS energy range will be discussed, including the T decay. In the third lecture I will then describe the new storage ring PETRA and present first results on QED checks, total cross section, jet structure, and two-photon processes. 724 pp. Englisch.
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Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, GermaniaBuchWeltWeit Ludwig Meier e.K.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The equations of quantum mechanics, let alone those of quantum field theory, are sufficiently complex to solve that various approximation schemes are both welcome and desirable. In applications to quantum field theory, renorm alize…d perturbation theory has long been the predominant calculational tool, and it has even tended to shape the entire conceptual outlook on such problems as well. How ever, the apparently irreconcilable conflict between strong interaction physics and perturbation theoretic calculations has given way in the past few years to some fairly revolut ionary (at least for field theory) modes of formulation and calculation. The fires of this revolution have been fed by exact solutions of special classical systems, [1] notably the sine-Gordon equation, and an appreciation of the relevance of classical solutions of nonlinear systems as starting points in quantum analyses [2]. The soliton solutions of the classical sine-Gordon equation exhibit extraordinary stability under scattering, but this feature is not essential for their utility in quantum studies. Consequently, broad studies have been made of nonlinear systems that exhibit localized, persistent solutions, which have also frequently been termed 'solitons' (or solitary waves, or kinks) as well [31. Solitons that have their origin in con ventional symmetries and conserved currents (and thus are ~topological in origin) have been discussed [4] along with those that arise from asymptotic properties of the solution, as in the sine-Gordon model, (and thus are topo logical in origin). 904 pp. Englisch.
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Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, GermaniaBuchWeltWeit Ludwig Meier e.K.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Reoviruses are ether-resistant icosahedral viruses 60 to 75 mp in diameter which contain ribonucleic acid. They have been recovered from man and lower animals and are ubiquitous in their geographic distribution. At present, the imp…ortance of these viruses as a cause of human or animal disease is still largely unknown. As a result of having a number of unusual characteristics, reoviruses have attracted the attention of many workers in the relatively short time since they were first recognized. For example, investigators interested in the molecular aspects of virology have been attracted by the unusual double-helical ribonucleic acid of high molecular weight which reoviruses possess, while those interested in epidemiology have been attracted by the occurrence of apparently identical viruses in both man and an unusually wide variety of lower animals. This com pilation is based on information available to the author as of October 31, 1966. II. History The term 'reqvirus' was proposed in 1959 (SABIN, 1959) as a group name for a number of viruses then classified (SABIN, 1956; RAMOS-ALvAREz and SABIN, 1958) as being identical with, or related to, ECHO type lO virus. 116 pp. Englisch.
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Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, GermaniaBuchWeltWeit Ludwig Meier e.K.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Interdependence between species is a law of nature. The degree of this interdependence is vividly evident in the plant-microbial world. Indeed, there is no axenic plant in nature and one finds various forms of interac tions between… these two kingdoms ranging from completely innocuous to obligate parasitic. Most of these interactions are poorly understood at the molecular and physiological levels. Only those few cases for which a molecular picture is emerging are discussed in this volume. With the advent of recombinant DNA technology and the realization that some of these interactions are very beneficial to the host plant, a spate of activity to understand and manipulate these processes is occurring. Microbes interact with plants for nutrition. In spite of the large number of plant-microbe interactions, those microbes that cause harm to the plants (i. e. , cause disease) are very few. It is thus obvious that plants have evolved various defense mechanisms to deal with the microbial world. The mecha nisms for protection are highly diverse and poorly understood. Some pathogens have developed very sophisticated mechanisms to parasitize plants, an excellent example for this being crown gall caused by a soil bac terium, Agrobacterium tumefaciens. A remarkable ingenuity is exhibited by this bacterium to manipulate its host to provide nitrogenous compounds which only this bacterium can catabolize. This is carried out by a direct gene transfer mechanism from bacteria to plants. 408 pp. Englisch.
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Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, GermaniaBuchWeltWeit Ludwig Meier e.K.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The papers contained in this volume are lectures and seminars presented at the 20th 'Universitatswochen fUr Kernphysik' in Schladming in February 1981. The goal of this school was to review some rapidly developing branches in mathe…matical physics. Thanks to the generous support provided by the Austrian Federal Ministry of Science and Research, the Styrian Government and other sponsors, it has been possible to keep up with the - by now already traditional - standards of this school. The lecture notes have been reexamined by the authors after the school and are now published in their final form, so that a larger number of physicists may profit from them. Because of necessary limitations in space all de tails connected with the meeting have been omitted and only brief outlines of the seminars were incl~ded. It is a pleasure to thank all the lecturers for their efforts, which made it possible to speed up the publi cation. Thanks are also due to Mrs. Krenn for the careful typing of the notes. H. Mitter L. Pittner Acta Physica Austriaca, Supp. XXIII, 3-28 (1981) by Springer-Verlag 1981 CLASSICAL SCATTERING THEORY+ by W. THIRRING Institut fur Theoretische Physik Universitat Wien, Austria 1. INTRODUCTION It was first recognized by Hunziker [1] that the notions of scattering theory play an important role in classical mechanics. It turned out [2] that it leads to non-trivial information for the global properties of the solutions of the classical trajectories. 716 pp. Englisch.
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Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, GermaniaBuchWeltWeit Ludwig Meier e.K.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The contributions to this volume deal with topics ranging over constructive and general quantum field theory and related algebraic problems, non-renormalizable models,equilibrium sta tistical mechanics, critical phenomena, and nonl…inear equations modelling the onset of turbulence. They are based on lectures intended to provide the 1975/1976 research group 'Mathematical Problems of Quantum Dynamics' at the Centre for Interdisciplinary Research (ZiF) of Bielefeld University with an input reflecting important recent develop ments and presented by leading experts in the pertinent fields of research. They further reflect a situation of unusually active and fruit ful exchange not. only between various specializations of theoretical physics which deal with the specific problems of large systems but also of a lively two-way interaction with mathematics which stimulates and furthers the progress of both disciplines. Thanks are due to the contributors, to the Preparatory Committee - H. Behncke, P. Blanchard, K. Hepp, O. Steinmann, A.S.Wightman -, to the University of Bielefeld for the spon sorship of these lectures, to the directors and staff of ZiF who made them possible, and to Miss V.C. Fulland and Miss M. Kamper for their calm and competent production of the manuscript. 252 pp. Englisch.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -InhaltsangabeOpening Address.- Dynamical Problems of the Relativistic Quark Model.- Partons in the Light of the Cone.- Chiral Invariance and Low-Energy Pion-Pion-Scattering.- The Infrared Problem in Electron Scattering.- Infrared S…ingularities in Theories with Scalar Massless Particles.- Conformal Invariant Euclidean Quantum Field Theory.- Gauge Theories and Superselection Rules.- Field Structure Through Model Studies: Aspects of Nonrenormalizable Theories.- Renormalized Local Quantum Field Theory and Critical Behaviour.- On Phase Transitions in Open Systems far from Thermal Equilibrium.- Exact Results on the Structure of Matter.- Approach and Return to Equilibrium.- Magnetic Charges and Strings as Building Blocks of Hadrons-Connection between Electromagnetic and Dual Strings.- Summary - First Week.- Summary - Second Week. 620 pp. Englisch.
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Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, GermaniaBuchWeltWeit Ludwig Meier e.K.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The last ten years has witnessed a resurgence of interest in stereotactic surgery although this has been mainly in the field of the comparatively simple stereotactic biopsy of intracranial tumours. There is also evidence of a retur…ning interest in functional neurosurgery other than pain which has always sustained high levels of endeavour. The present work comprises selected papers from a much larger group of interesting and important communications to the European Society for Stereotactic and Functional Neurosurgery. They represent modern views on a wide variety of stereotactic surgical topics from internationally acclaimed experts in this field. The neurosurgeon who has little or no acquaintance with this fruitful sub-specialty will be surprised to find very broad applications of the technique which is gradually replacing many con ventional neurosurgical procedures. This is particularly evident in the papers on tumours but there is also a section on the treatment of vascular disease which marks an extension of neurosurgical practice. The Society has always regarded technical advances as important and some of the most recent devel opments appear in this book. Finally, an exciting new development of neural transplantation marks the beginning of what may be an important part of neurological surgery in the future. 128 pp. Englisch.
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Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, GermaniaBuchWeltWeit Ludwig Meier e.K.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Contemporary laryngology had its beginnings near the close of the 19th century and is probably best exemplified in the work of Morel McKenzie and of Czermak. Subsequent to their pioneering efforts, another surge of interest could b…e said to have centered about the efforts of the Chevalier Jacksons in the 1920's. After those bold steps, and for almost 40 years, research in laryngology and interest in laryngology continued, but at considerably and increasingly less intense levels, certainly so far as the otolaryngologist population was concerned. In the 1940's Julius Lempert sparked a renaissance in otologic research, deVelopment, and surgery, and exciting new frontiers opened in otology. In our own time, otology remains a large basic and fundamental segment of the otolaryngologic purview, but the flood of new discoveries which followed Lempert, like those which had followed the Jacksons in the 1920's in laryngology, appears to have diminished. When the authors of this publication made acquaintance in the late 1960's, there were approximately 10 centers in the United States for laryngologic research which could be truly designated as voice research facilities. The senior author was at that time instrumental in formulating the major criteria for laboratories to be so designated. In the early 1980's interest in laryngology has revived. At a recent meeting it was possible to list over 40 such laboratories which now were known to the authors over a broad geographic sweep, covering the entire United States. 128 pp. Englisch.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The tumors of the brain similar to other pathological changes of that particular organ claim for a separate position in scientific medicine regarding biology, morphology, features of clinical manifestation, diagnostics and therapy.… During the past years due to rapid progress in basic neurosciences and medical biotechnics the situation of the neuroclinician in front of brain tumors has been dramatically changed. The prerequisites for early and accurate diagnosis as well as for successful treatment also of malignant neoplasms have increased and remarkably improved. At the same time the information necessary for an appropriate pragmatic use of the available cognitive methods and therapeutic means increased along the same scale and is permanently being critically modified or changed due to fundamental new insights which come up in always shorter intervals. These facts necessitate the preparation of publications in which the state of the art is presented in possible completeness, systematic order and proper disposability for rational management and therapeutic strategies. 520 pp. Englisch.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Mit Beiträgen zahlreicher Fachwissenschaftler 368 pp. Englisch.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -At a round table discussion on the eukaryotic chromosome sponsor ed by the Deutsche Forschungsgemeinschaft in Diisseldorf, February 1978, the botanists among the participants felt that plant systems were under-represented. In this…unsatisfactory situation, Professor V. HEMLEBEN, Tiibingen, suggested another meeting to discuss actual problems and results concerning botanical chromosome research. Professor W. NAGL was willing to organize a symposium at the University of Kaiserslautern, and Professor F. EHRENDoRFER, Wien, contacted the Rpringer-Verlag, Vienna-New York, to explore the possibility of publishing the results of this symposium in the form of a supplement volume to the journal Plant Systematics and Evol7ttion. The conference took place on 13-15 October 1978 in the Department of Biology of the University of Kaiserslautern and was attended by 40 participants from 11 universities between Hamburg and Vienna. Emphasis of this Chromosome Symposium was given to three aspects, which do not attract major interest at large international congresses: 1. Discussion and Demonstration of technical details which cannot be found in published papers (so-called tricks). 2. Orientation about actual trends and results in our understanding of the organization, evolution, and function of the plant genome at the level of the DNA (gene), the level of chromatin, and the level of the karyotype. 3. Presentation of hypotheses and models which may be stimulating for further research. Moreover, younger students should have the possibility to present their results and to discuss them with more experienced scientists. 296 pp. Englisch.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -It is apparent from the history of science, that few-body problems have an interdis ciplinary character. Newton, after solving the two-body problem so brilliantly, tried his hand at the Sun-Earth-Moon system. Here he failed in two…respects: neither was he able to compute the motion of the moon accurately, nor did he understand the reason for that. It took a long time to understand the fundamental importance of Newton's failure, and only Poincare realised what was the fundamental difficulty in Newtons programme. Nowadays, the term deterministic chaos is associated with this problem. The deep insights of Poincare were neglected by the founding fathers of Quantum Physics. Thus history was repeated by Bohr and his students. After quantising the hydrogen atom, they soon found that the textbook case of a three-body problem in atomic physics, the 3He-atom, did not yield to the Bohr-Sommerfeld quantisation methods. Only these days do people realise what precisely were the difficulties connected to this semi classical way of treating quantum systems. Our field, as we know it today, began in principle in the early 1950's, when Watson sketched the outlines of three-body scattering theory. Mathematical rigour was achieved by Faddeev and thereafter, at the beginning of the 1960's, the quantum three-body prob lem, at least as far as short-range forces were concerned, w&s tamed. In the years that followed, through the work of others, who first applied Faddeev's methods, but later added new techniques, the three-and four-body problems became fully housebroken. 508 pp. Englisch.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -A comprehensive review of the Golgi apparatus and its functioning would require a multi-volume publication and not a monograph and it would be so repetitious as to discourage the reader. The requirement at this stage is for a reint…erpretation of the character and functioning of this organelle since the last major interpretations have concentrated on its role in secretion and it has now been shown to be a component of essentially all cells whether or not they have been traditionally emphasized as secreting cells. As a conse quence the efforts have been placed on the common characteristics of the organelle, a postulate concerning its functioning in cells generally, and the details of variations where these seem important. The major acknowledgment of assistance in compiling the material must go to the investigators whose contributions, sometimes positive and sometimes of a character to spur additional investigations, allowed the development of this postulate. The paper has been prepared with the detailed assistance of Dr. MARIANNE DAUWALDER who, by her own studies and her insight into the significance of other studies, has been a working partner of many years in the development of a general hypothesis and whose knowledge of investiga tions of the Golgi apparatus is great enough to let her call attention to instances of support and contention with the general functional hypothesis that has been involved. 204 pp. Englisch.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Organized by Sandoz Research Institute 376 pp. Englisch.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The 4th Advanced Seminar in Neurosurgical Research was held on May 17th-18th, 1989 in the Abbey of Praglia, a XIIth century Benedictine Monastery, near Padua, Italy, and was devoted to 'Neurosurgical Aspects of Epilepsy'. The gener…al aim of these Advanced Seminars is to bring together European Neurosurgeons interested or involved in research, either clinically, experimentally or both, in a given field in order to achieve in-depth informal discussions not possible in the more conventional large congress. In particular, these Advanced Seminars seek to provide high level teaching by experienced basic scientists, to provide 'state of the art' assessment of the subject and to highlight areas of controversy that might be suitable for future research. A special effort is made to identify younger Neurosurgeons, partly through the auspices of the European Directory of Neurosurgical Research, who have a particular interest in the subject under discussion, not all of whom will have immediate access to the most advanced, modern technology. Surgical treatment of epilepsy is an expanding area of endeavour and an expertise that remains underutilized in many countries. The programme for this Seminar was designed to paint the broad background, moving from basic membrane electrophysiology through to cost benefit analysis and rehabilitation. The perspectives of neu ropathology, neurology, neuroradiology, nuclear medicine, neuropsychology, neurophysiology and the drug in dustry are all included. 160 pp. Englisch.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The production of a new version of any book is a daunting task, as many authors will recognise. In the field of computer science, the task is made even more daunting by the speed with which the subject and its supporting technology… move forward. Since the publication of the first edition of this book in 1981 much research has been conducted, and many papers have been written, on the subject of fault tolerance. Our aim then was to present for the first time the principles of fault tolerance together with current practice to illustrate those principles. We believe that the principles have (so far) stood the test of time and are as appropriate today as they were in 1981. Much work on the practical applications of fault tolerance has been undertaken, and techniques have been developed for ever more complex situations, such as those required for distributed systems. Nevertheless, the basic principles remain the same. 340 pp. Englisch.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Soluble quantum field theory models are a rare commodity. An infinite number of degrees of freedom and noncompact invariance groups have a nasty habit of ex ploding in the model-makers' face. Nevertheless, impor tant progress has r…ecently been made in the class of superrenormalizable relativistic theories, such as a self-interacting boson in a two-dimensional space time [ 1]. These results have been obtained starting with the free field and adding the interaction in a carefully controlled way. Yet, the models successfully studied in this way do DQ~ have an infinite field strength renormalization, which, at least according to perturbation theory, should appear for realistic relativistic models in four-dimensional space time. ~2~!Y~~!9n_~g_~h~_~gg~1 The ultralocal scalar field theories discussed in these lecture notes are likewise motivated by relativistic theories but are based on a different approximatiGn. This approximation formally amounts to dropping the spatial gradient term from the Hamiltonian rather than the non linear interaction. For a self-interacting boson field in a space-time of (s+l) dimensions (s~l), the classical ultralocal model Hamiltonian reads (1-1) The quantum theory of this model is the subject of the present paper. This model differs formally from a rela tivistic theory by the term f![Z~Cl(~)]2 d~ which, it is hoped, can, in one or another way, be added as a pertur 229 bation in the quantum theory. However, that still remains a problem for the future, and we confine our remarks to . . a careful study of the 'unperturbed' model (1-1). 448 pp. Englisch.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -2 D. Immunological Response . . . . . . . . . . . . . . . . . . . . 78 1. Thymectomy in LDV Infection . . . . . . . . . . . . . . . . 81 2. Effect of LDV Infection on Immune Response to Various Antigenic Stimuli. . . . . 82 E. Tumo…ur Growth . . 87 F. Histological Changes 91 VII. Ecology . . . . . . . 97 VIII. Laboratory Methods. . 100 A. Blood Samples from Mice for LDH Estimation . 100 B. Estimation of Plasma LDH Activity . . 101 1. Quantitative Methods. . . . . . . . 101 a) Determination of Plasma LDH by Spectrophotometric Method (Backward Reaction) . . . . . . . . . . . . . . . 101 b) Determination of Plasma LDH by Spectrophotometric Method (Forward Reaction) . . . . . . . . . . . . . . . . 102 c) Determination of Plasma LDH by Colorimetric Method 103 2. Qualitative Method. . . . . . . 103 3. Units of LDH Activity . . . . . 104 C. Diagnosis of LDV Infection in Miee. 105 D. Virus Titration. 105 References. . . . . . . . . . . . . . . . 106 We wish to express our thanks to our many colleagues who generously provided us with preprints of their work, and unpublished observations. We are particularly indebted to those who donated prints of their electron micrographs of the virus. I. Introduction Inapparent virus infections of experimental animals and tissue culture systems present to the investigator a problem which it is impossible to overcome completely. Although all recognised viruses can be excluded from an experimental system, previously unsuspected viruses causing no obvious effects ('silent' viruses) will continue to be discovered. A truly silent virus would replicate, causing no change in its host cell, damage to infected tissue or immune response and would pre sumably be of no consequence. 132 pp. Englisch.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -I. Introduction Of the ever increasing number of viruses known to affect man and higher animals, the virus of lymphocytic choriomeningitis (LCM) was one of the first to be discovered. Indeed, this virus has been known and maintaine…d in the laboratory by passages in a relatively simple host, the mouse, for 35 years. Yet our knowl edge of its properties is still scanty when compared with the wealth of informa tion available for other viruses, some of which have come to our attention much more recently. There are at least four reasons which may help to explain this seeming paradox. (1) The early belief that the LCM virus was the frequent cause of human diseases had soon to be abandoned; infections of man with this virus are rare. (2) By way of contrast, laboratory infections are not uncommon and they frequently run severe and even fatal courses. (3) Until recently, the only means of titrating the virus was by mouse inoculation, a method in which accuracy and economy are poorly correlated. (4) The virus is of unusual lability, being quickly inactivated under conditions which leave other viruses intact. Thus, when balancing medical and theoretical importance against personal hazard and tech nical difficulties, the result was quite unfavorable, and lack of interest was really not surprising. In the last few years, however, the situation has gradually changed and an increasing number of workers have turned their attention to this virus. 184 pp. Englisch.
Lingua: Inglese
Editore: Springer Vienna, Springer Jan 2012, 2012
Serie: Acta Neurochirurgica Supplement, Libro 28 di 91. Libro 28 di 91 - Acta Neurochirurgica Supplement
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This volume contains selected contributions from the XIth Meeting of the European Society for Stereotactic and Functional Neurosurgery held in September 1994 in Antalyaffurkey. Most of the papers deal with the many therapeutic and…technical advancements made in this field of neurosurgery. The emergence of new stereotactic methodologies such as frameless stereotaxy and other forms of neuronavigation have become an indispensable tool for all types of neurosurgical operations. An increasing number of young neurosurgeons takes an interest in the neurosurgical approaches to the treatment of movement disorders, chronic pain and epilepsy. This is a clear sign ofthe growing awareness of the long neglected fact that these neurosurgical treatments can be offered to large patient populations. Neurotransplantation as a novel treatment of Parkinson's disease has paved the way for the application of this technology for other indications. The pioneering work performed by the late Edward Hitchcock is reviewed here. There is a renewed interest in pallidotomy for dealing with certain forms of Parkinson's disease and certain aspects of this operation are discussed in another paper. Progress in the neurosurgical treatment of pain is dealt with by contributions on refined techniques of percutaneous cordotomy, DREZ operations and critical evaluations of spinal cord stimulation. A novel approach is a report on the experiences of treating cancer pain by intraspinal implantation of chromaffin cells. Several contributions cover the important issues of novel techniques for the study of neural dysfunction, peroperative monitoring with PET, microrecording, magneto-encephalography and other techniques. 156 pp. Englisch.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The onset of an epileptic seizure has become a matter of prime interest in the last two decades. For successful therapy it is of the greatest importance to understand how the different inhibitory mechanisms involved in the normally… functioning brain are carried out, and how the devastating avalanche of the seizure activity may overrun wide areas of grey matter. This problem of how an attack may arise has been dealt with in several monographs, but from different points of view: on the one hand chiefly from the viewpoint of the clinical EEG (GAsTAuT et al. 1969), on the other hand from the viewpoint of experimental epilepsy, starting with the activities observed at the level of the nerve cell (JASPER et al. 1969). This volume has quite a different perspective. It contains the papers and discussions presented at a Symposium organized by the Austrian Academy of Sciences, the aim of which was to arrive at a better understanding of some of the electrical phenomena accompanying the epileptic seizure. 444 pp. Englisch.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Cervical Spine Research Society European Branch 'The Cervical Spine Research Society is an organization of individuals interested in clinical and research problems of the cervical spine. Its purpose is for the exchange and developm…ent of ideas and philosophy regarding the diagnosis and treatment of cervical spine injury and disease. The com position of the membership should reflect the varying specialities and disciplines dealing with the cervical spine; biochemical, engineering, neurology, neurosurgery, radiology, orthopedic surgery and others', wrote J. William Fielding, New York City, one of the Society'S founding members. In 1984 the membership list contained 118 names. The overwhelming majority of members came from the United States, four from Canada and 9 Europeans, amongst them Mario Boni. He was the organizer, in con junction with the members of the Cervical Spine Research Society, of a splendid 'International Meeting for the updating on pathology and surgery Preface VI of the cervical spine' held in Pavia (Italy) in May 1982. It was from this meeting that the idea of a European branch of the Society first originated, with the purpose of establishing multi-disciplinary meetings in Europe. The first meeting of the European branch was organized by A. Weidner in September 1984 in Osnabriick (Federal Republic of Germany). Mario Boni was elected president. He was not only the initiator but also the drivinglorce who tirelessly promoted the development of the European branch. Mario Boni's death in 1986 at the age of 64 was a great loss to us. 352 pp. Englisch.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -During the last few years stereotactic radiosurgery has become a partner of equal rank within the discipline of neurosurgery. Today it is regarded as being of the same importance as microsurgery and endovascular neurosurgery, branc…hes which have also progressed rapidly in recent years. Breakthrough success, however, requires a combined effort of all partners involved.The editors have brought together leading experts in the fields of neurosurgery, neuroradiology, neurology, neuropathology, neuroanatomy, radiation oncology, and biophysics to discuss indications and therapeutic strategies in the treatment of arteriovenous malformations and intracranial tumors and to find a common basis for their future work. 132 pp. Englisch.
