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Taschenbuch. Condición: Neu. Neuware - Adult and immature nervous system are capable of considerable 'plasticity' and unravelling the underlying mechanisms is one of the principal and most fascinating goals of Neurobiology. A major contribution to our understanding of neural plasticity has come from recent studies in excitato ry amino acids - which are thought to mediate a large part of the excitatory synaptic transmission on the brain. Important steps in this explosive field are: 1) the synthesis of relatively specific antagonists of the N-methyl-D aspartate (NMDA) and non-NMDA receptors subtypes, 2) the characterization of the unique features of the NMDA receptor channel complex notably its voltage dependent Mg++ blockade, its permeability to calcium and its allosteric modulation by glycine, 3) the demonstration that by virtue of their Ca++ permeability NMDA receptors are involved in many -but not all -synapses in the initiation but not the maintennce of long term potentiation (L TP) an experimented model of learning and memory processes. More recent studies also indicate tha excitatory amino acids also play an important role in developmental plasticity in vivo; in cell cultures low levels of excitatory amino acids have trophic roles and can inhibit or promote neurite growth. Excitatory amino acids also play an important role also in other forms of neural plasticity such as the use dependent permanent changes in neural circuit produced by brief seizures (epileptogenesis) as well as the reactive sprouting and neosynapse formation which take place in epilepsy models and after deafferentiation or lesions.

Taschenbuch. Condición: Neu. Neuware - The Cryogenic Engineering Conference celebrated its Silver Anniversary at the 1979 Conference held at Madison, Wisconsin. For many it provided an opportunity to reminisce about the first Cryogenic Engineering Conference convened at the National Bureau of Standards in Boulder, Colorado and also about the many following conferences and advances that had been reported at these conferences. It is difficult to realize that the first Cryogenic Engineering Conference was held before the advent of multilayer insulation, the space age, large-scale LNG Operations and superconductivity applications. The evolution of these activities has been carefully recorded in past volumes of the Advances in Cryogenic Engineering. Once again, the Cryogenic Engineering Conference is happy to have had the International Cryogenic Materials Conference cohost this meeting at the University of Wisconsin. Collaboration between these two conferences has proven to be mutually beneficial by providing the cryogenic engineer with an in-depth exposure to materials properties, selection, and utilization to complement the exposure to new applications and design concepts. The papers presented at this joint conference as part of the International Cryogenic Materials Conference will be published as Volume 26 of the Advances in Cryogenic Engineering.

Taschenbuch. Condición: Neu. Neuware - A Survey of Superconducting Materials.- Fluctuations in Superconductors.- Superconductivity at High Pressures.- Structure of a Vortex in a Dirty Superconductor.- Observation of Landau-Type Branching in the Intermediate State.- Attractive Interaction between Vortices in Type II Superconductors at Arbitrary Temperatures.- Calculation of the Vortex Structure at All Temperatures.- Magnetic Field Distribution in Type II Superconductors by Neutron Diffraction.- Neutron Diffraction Test of Type II Theories in Relation to Temperature.- Nuclear Spin-Spin Relaxation in Superconducting Mixed-State Vanadium.- On the Nature of Flux Transport Noise.- Flux Kinetics Associated with Flux Jumps in Type II Superconductors.- Impurity Effect on the Anisotropy of the Upper Critical Field of Nb-Ta Alloys.- Vortex Transport Interference Transitions.- An Alternating Current Investigation of Pinning Sites.- Effects of Surface Superconductivity in Low Al-Ag Alloys.- A Model for Flux Pinning in Superconductors.- Flux Flow of Pure and Dirty Superconductors.- The Specific Heat of Very Pure Niobium in the Meissner and Mixed States.- Temperature Dependence of Ultrasonic Attenuation in the Mixed State of Pure Niobium.- Mixed-State Ultrasonic Attenuation in Clean Niobium.- The Attenuation of Sound, ql > 1, in Niobium at Low Flux Densities.- Thermal Conduction in the Mixed State of Superconducting Niobium at Low Temperatures.- Entropy of a Type II Superconductor in the Mixed State Close to Tc.- Flux Pinning in Type II Superconductors.- Magnetic Moment in Superconductors Excited by Heat Flow.- Transition to the Mixed State in Lead Films at 4.2°K.- Observation of Tilted Vortices by Microwave Absorption.- Microwave Absorption in Dirty Type II Superconducting Films Around Their Critical Thickness.-Experimental Evidence for the Thompson Term in the Microwave Conductivity of Type II Superconductors.- Dynamic Structure of Vortices in Superconductors: Three-Dimensional Features.- Higher-Order Corrections Due to the Order Parameter to the Flux Flow Conductivity of Dirty Type II Superconductors.- The Nascent Vortex State of Type II Superconductors.- Hall Effect in Type II Superconductors.- Current-Induced Intermediate State in Superconducting Strips of Lead and Indium.- Dissipation in a Superconducting Indium Wire.- Flux Motion in Lead-Indium Wires with Longitudinal Magnetic Fields.- Faraday Induction and Flux Flow Voltages in Type II Superconductors: Effect of Magnetic Field and Temperature.- Investigations of Resonances in the RF Absorption of Superconducting Niobium.- Dynamics of the Destruction of Type I Superconductivity by a Current.- Influence of Thermal Effects on the Kinetics of the Destruction of Superconductivity by a Current.- Fast Neutron Damage in Superconducting Vanadium.- The Effect of an Axial Moment on Normal-Phase Propagation in Type II Superconductors Carrying a Current.- Response of Magnetically Irreversible Type II Cylinders to Currents and Fields Applied in a Parallel Axial Geometry.- Limited Flux Jumps in Hard Superconductors.- Boundary Current and Modulated Flux Motion in Superconducting Thin Pb Films.- Effect of Helical Flow on lc in Cylinders of Type II Superconductors in Axial Magnetic Fields.- Achievement of Nearly Force-Free Flow of Induced Currents in Ribbons of Nb3Sn.- Effect of DC and AC Currents on the Surface Sheath Conductivity of Niobium Single Crystals.- Thermodynamic Properties of Josephson Junction with a Normal Metal Barrier.- Linewidth of Relaxation Oscillations of a Shunted Superconducting Point Contact.- Evidence for theExistence of the Josephson Quasiparticle-Pair Interference Current.- Microwave Emission from Coupled Josephson Junctions.- Application of the Shunted Junction Model to Point-Contact Josephson Junctions.- Characteristics of Josephson Point Contacts at the Center of a Spherical Cavity.- Temperature Dependence of the Riedel Singularity.- Fine Structure in the Anomalous DC Current Singularities of a Josep.

Taschenbuch. Condición: Neu. Neuware - The purpose of this book is to provide the reader with a survey of some of the major areas of clinical psychology. No attempt has been made to include every area relevant to clinical psychology; the choices are selective but represent the wide range of areas touched by clinical psychologists. For some years I have felt the need for a book that provides students with more of a historical introduction and context from which to view current clinical psychology than is included in most textbooks. The issues and problems of clinical psychology have been with us since the beginning of time; however, most psychological literature is written with the bias that anything older than five or ten years is not relevant. Those who attempt to take a long-range view of clinical psychology are sometimes able to recall the early development of the field in the 1930s and 1940s. In this text, I asked the authors to begin with a brief survey of ancient and medieval history to set the stage for a discussion of current research and developments in the field. I hope that a presentation of this sort will provide the reader-whether advanced undergraduate, graduate, or professional-with a sense of perspective and context from which to view and understand clinical psychology.

Taschenbuch. Condición: Neu. Neuware - This volume is the scientific chronicle of the NATO Advanced Research Workshop on Computational Aspects of the Study of Biological Macro molecules by Nuclear Magnetic Resonance Spectroscopy, which was held June 3-8, 1990 at Il Ciocco, near Barga, Italy. The use of computers in the study of biological macromolecules by NMR spectroscopy is ubiquitous. The applications are diverse, including data col lection, reduction, and analysis. Furthermore, their use is rapidly evolv ing, driven by the development of new experimental methods in NMR and molecular biology and by phenomenal increases in computational perfor mance available at reasonable cost. Computers no longer merely facilitate, but are now absolutely essential in the study of biological macromolecules by NMR, due to the size and complexity of the data sets that are obtained from modern experiments. The Workshop, and this proceedings volume, provide a snapshot of the uses of computers in the NMR of biomolecules. While by no means exhaustive, the picture that emerges illustrates both the importance and the diversity of their application.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The sixth Ettore Majorana International School of Mathematical Physics was held at the Centro della Cultura Scientifica Erice, Sicily, 1-14 July 1985. The present volume collects lecture notes on the ses sion which was devoted to Fundamental Problems of Gauge Field Theory. The School was a NATO Advanced Study Institute sponsored by the Italian Ministry of Public Education, the Italian Ministry of Scientific and Technological Research and the Regional Sicilian Government. As a result of the experimental and theoretical developments of the last two decades, gauge field theory, in one form or another, now pro vides the standard language for the description of Nature; QCD and the standard model of the electroweak interactions illustrate this point. It is a basic task of mathematical physics to provide a solid foundation for these developments by putting the theory in a physically transparent and mathematically rigorous form. The lectures and seminars of the school concentrated on the many unsolved problems which arise here, and on the general ideas and methods which have been proposed for their solution. In particular, we mention the use of rigorous renormalization group methods to obtain control over the continuum limit of lattice gauge field theories, the explora tion of the extraordinary enigmatic connections between Kac-Moody Virasoro algebras and string theory, and the systematic use of the theory of local algebras and indefinite metric spaces to classify the charged C\* states in gauge field theories. 412 pp. Englisch.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Analysis of the Resonance Reactions H3(d,n)He4 and He3(d,p)He4 in the Effective Interaction Radius Approximation.- Single-Particle Vibrational Input States in Interactions between Neutrons and Nuclei.- Radiation of a Charged Particle in the Presence of a Separating Boundary.- of Heavy and Light Radioactive Nuclei into Nuclear Emulsions.- Neutron-Transfer Theory for Inhomogeneous Media.- Model of a Heavy Moderator and an Analytical Solution of the Neutron Thermalization Problem. 280 pp. Englisch.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The fifth Advanced Study Institute (ASI) on Techniques and Concepts of High Energy Physics was held again at the Hotel on the Cay, in the scenic harbor of Christiansted, St. Croix, U. S. Virgin Islands. The ASI brought together a total of 71 participants, from 17 different countries. It was another great success, due to the dedication of the inspiring lecturers, the exceptional study body, and, of course, the beautiful setting. The primary support for the meeting was again provided by the Scientific Affairs Division of NATO. The ASI was cosponsored by the U.S. Department of Energy, by Fermilab, by the National Science Foundation, and by the University of Rochester. A special contribution from the Oliver S. and Jennie R. Donaldson Charitable Trust provided an important degree of flexibility, as well as support for worthy students from developing nations. As in the ca se of the previous ASI's, the scientific program was designed for advanced graduate students and recent PhD recipients in experimental particle physics. The present volume of lectures should complement the material published in the first four ASI's, and prove to be of value to a wider audience of physicists. 516 pp. Englisch.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -4. 3 The Gypsy language 72 4. 4 The Gypsy Verification Environment 73 4. 5 A simple example 81 4. 6 Specification data types 91 4. 7 Future directions 95 100 4. 8 Conclusions 5 Reliable programming in standard languages 102 Bernard Carre, Program Validation Ltd. 5. 1 Introduction 102 5. 2 Language requirements for high-integrity programming 103 5. 3 The use of standard languages 108 5. 4 Programming in Pascal and Ada 110 1'19 5. 5 Practical experiences NewSpeak: a reliable programming language 6 122 I. F. Currie, Royal Signals and Radar Establishment 6. 1 Introduction 122 6. 2 Types and values 127 6. 3 Declarations and variables 132 6. 4 Guarded declarations 134 6. 5 Cases and conditionals 136 6. 6 Loops 138 6. 7 Procedures 140 6. 8 Assertions 145 6. 9 Timing 147 6. 10 Conclusion 149 6. 11 Appendix 1: summary of syntax 150 6. 12 Appendix 2: type lattice and widening 156 7 Program analysis and systematic testing 159 M. A. Hennell, University of Liverpool, and D. Hedley and I. J. Riddell, Liverpool Data Research Associates Ltd. 7. 1 Introduction 159 7. 2 The basic requirement 160 7. 3 The Liverpool experience 161 7. 4 The Liverpool experiments 162 7. 5 The LDRA Testbeds 163 Interpretation 169 7. 6 7. 7 Applicability and benefits 171 7. 8 Safety-critical systems 173 VI 8 Program analysis and verification 176 Bernard Carre, Program Validation Ltd. 8. 1 Introduction 176 8. 372 pp. Englisch.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The discovery that the same or similar peptides are present in endocrine cells and in neurons is one of the most exciting and provocative recent developments in biology. Suddenly neurophysiologists and endocrinologists have found that they have a great deal to discuss with each other. Substances originally isolated as hypothalamic hormones turn out to be abundantly present in neurons of other parts of the brain and in endocrine cells and neurons of the gut and pancreas. Similarly, substances originally isolated as gut hormones are found not only in gut endocrine cells but also in gut neurons and in brain neurons. It turns out that the group of peptides that we are accustomed to call gastrointestinal hormones are not all confined to the gastrointestinal tract and are not all solely hormones. We are learning that the chemical transmitters of the neurocrine, endocrine, and paracrine systems form a single group of related substances. This volume contains the latest installments in this fascinating story. It tells how these pep tides were isolated and their amino acid sequences determined, how the heterogeneity of most, perhaps all, of these peptides is being revealed as variant forms of them are discovered, how antibodies to these peptides are used as powerful tools to measure their concentrations in body fluids and to localize the cells in which they are synthesized and stored, and, finally, how the role of these substances in normal physiology and in pathological states is being unraveled. 340 pp. Englisch.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The explosive increase in the world's human population, with conse quent need to feed an ever-increasing number of hungry mouths, and the largely resultant disturbances and pollution of the environment in which man must live and produce the things he needs, are forcing him to search for means of solving the first problem without intensifying the latter. Food production requires adequate assurance against the ravages of insects. In the last three decades short-sighted, unilateral and almost exclusive employment of synthesized chemicals for insect pest control has posed an enormous and as yet unfathomed contribution to the degradation of our environment, while our insect pest problems seem greater than ever. Properly viewed, pest control is basically a question of applied ecology, yet its practice has long been conducted with little regard to real necessity for control, and in some cases, with little regard to various detrimental side-effects or long-term advantage with respect, even, to the specific crop itself. This book deals fundamentally with these questions. The development of pesticide resistance in many of the target species, against which the pesticides are directed, has occasioned an ever-increasing load of applications and complexes of different kinds of highly toxic materials. This has been made even more 'necessary' as the destruction of natural enemies has resulted, as a side effect, in the rise to pest status of many species that were formerly innocuous. The application of broad-spec trum pesticides thus has many serious and self-defeating features. 536 pp. Englisch.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The Ninth Biennial Polymer Symposium, sponsored by the Division of Polymer Chemistry of the American Chemical Society, was convened during November 18-22, 1978 at Key Biscayne, Florida. The symposium also marks the occasion when the Second Division of Polymer Chemistry Award was presented to Professor C. S. Marvel for his outstanding achievements in polymer chemistry. The proceedings of this Symposium are recorded in this volume. Carl Shipp Marvel, more popularly known as Speed Marvel, was born in Waynesville, Illinois in 1894. He received his A.B. and M.S. degrees at Illinois Wesleyan University, and M.A. and Ph.D. degrees at the University of Illinois. After having completed his graduate education, Professor Harvel remained at the University as a member of the Chem istry faculty. He 'retired' from Illinois in 1961, and moved to the University of Arizona where he continued his research in polymer chemistry. Out of the more than 500 publications, over 100 were from Arizona during his active retirement. Speed has so far trained 176 Ph.D. students and 128 postdoctoral fellows, and inspired countless young chemists to the science of macromolecules. No doubt these numbers will increase along with his scientific productivity. Professor Harvel has been honored on numerous ocasions prior to receiving the Division of Polymer Chemistry Award. 356 pp. Englisch.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Separation of Complex Spectra into Individual Bands by the Generalized Alentsev Method.- Application of the Generalized Alentsev Method in Analysis of the Blue Luminescence Spectrum of ZnS.- Preparation of Zinc Sulfide Crystals and Nature of Blue Luminescence Centers in Self-Activated ZnS.- Use of Crystal Phosphors in Detection of Electromagnetic Radiations.- Investigation of Gallium Arsenide Lasers Pumped by Electron-Beam Bombardment.- Investigations of Some Four-Field Parametric Interactions.- A Contribution to the Theory of Excitons in Molecular Crystals.- Quenching of the Photoluminescence by Electron Irradiation and Energy Transfer in Molecular Crystals. 296 pp. Englisch.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -I. GENERAL When a sample containing hydrogen is placed in the Although it is assumed that the reader has been exposed static magnetic field, each hydrogen nucleus will precess to the elementary theory of NMR and to the operation at a frequency determined by the magnetic field it of an NMR spectrometer, a brief review of some of the actually experiences. This field, in turn, is determined by basic concepts and definitions will indicate the point of the electronic, and therefore the chemical, environment view used in this book and clarify some of the defini of the nucleus. Thus the variety of chemical environ tions. The discussion is confined to the hydrogen-l iso ments that exist in a molecule will produce a spectrum tope because this is by far the most generally used and, of precession frequencies that will indicate the chemical consequently, far more data are available for it than for nature of the various parts of the molecule. The remain any other isotope. This wealth of data, in turn, leads to ing problem is to observe this spectrum of frequencies. the most accurate and comprehensive set of spectra There are two general methods of observing the structure correlations. spectrum. 452 pp. Englisch.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The recent generation in the laboratory of phase squeezed and intensity squeezed light beams has brought to fruition the theoretical predictions of such non-classical phenomena which have been made and developed in recent years by a number of workers in the field of quantum optics. A vigorous development is now underway of both theory and experiment and the first measurements have been coi:Jfirmed and extended already in some half dozen laboratories. Although the fields of application of these novellight sources are as yet somewhat hazy in our minds and some inspired thinking is required along these lines, the pace and excitement of the research is very clear. It is to he hoped that the new possibilities of: making measurements below the quantum shot noise lirnit which is made possible by these squeezed states of light willlead to further fundamental advances in the near future. In this NATO ARW a number of the leaders in the field met in the extremely pleasant surroundings of Cortina d'Ampezzo and their contributions are recorded in this volume. The meeting was held at the Istituto d'Arte which was enjoying its lOOth anniversary celebrations. This ARW was preceeded by an ONR Special Seminar on 'Photons and Quantum Fluctuations', the proceedings of which will be published by Adam Hilger Ltd. The timeliness of the meeting was acknowledged by the support of the NATO Scientific Affairs Division which we would like to acknowledge on behalf of all the participants. 348 pp. Englisch.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -All areas of industry are facing increasing pressure from governments and consumers to be more environmentally aware. The food industry is no exception, and an increasing number of companies have made the decision to implement an environmental policy. These organisations will benefit from this book, which has been written to provide a broad but detailed introduction to the topic of environmental issues and their cost implica tions to the food industry. Throughout the text the authors have approached the subject from a practical angle, and have borne in mind the environmental, production or site manager who is grappling with the problem of how to implement such a policy. This book begins by considering the raw materials that are used in the food industry, whether derived from animals, fruit and vegetables, or the products of genetic engineering, as may increasingly be the case in the future. Environmental and cost considerations of food processing opera tions are then examined, encompassing energy conservation and the con trol of air, noise and water pollution; all topics that are uppermost in the priorities of the environmental manager. The finished food product also has an impact on its environment, and so the storage, distribution and packaging of foods, post food factory, is discussed in detail. Finally, the principles involved in management accounting for food industry environ mental issues are highlighted. All the authors of this book are respected experts in their chosen field, each of whom could have written a complete book on their subject. 428 pp. Englisch.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Industrial advances frequently depend on the development of new, special-purpose ma terials possessing specific magnetic, electrical, optical, strength, friction, antifriction, and other properties. Metal alloys produced by the conventional technique of metallurgical reduc tion often do not meet these new requirements. Powder metallurgy, therefore, is of consider able importance in solving many problems of present-day materials science. Its production techniques-solid-phase and liquid-phase sintering, impregnation, hot pressing - make it pos, sible to obtain materials from metallic components which are immiscible in the liquid state and also materials in which metals are combined with nonmetallic components such as refract ory compounds- oxides, carbides, nitrides, borides, sUicides, sulfides, etc. The properties of sintered parts depend essentially on the processes occurring during their formation. One of the most promising methods of producing sintered materials of high density with the best combination of various properties is liquid-phase sintering. In recent years, many publications have appeared concerning processes of sintering specific combinations of com ponents, the theoretical basis of liquid-phase sintering, and the laws governing this process. The present work examines liquid-phase sintering processes and the action of capillary forces in models of dispersed solid-liquid systems, and also gives data from theoretical and experi mental studies of liquid-phase sintering in various metal and metal-ceramic systems. Some theoretical generalizations on the principles of sintering processes are presented, and the driv ing forces of sintering and the effect of different conditions on liquid-phase sintering processes are considered. 84 pp. Englisch.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Since the first papers by E. N. Leith and J. Upatnieks on the subject of holography appeared in 1961, there has been a virtual explosion of research activity in the field. More than SOO papers and articles on holo graphy have appeared in the last ten years. Many applications of holo graphy have been proposed, and some of these are beginning to enter the realm of usefulness. One of the applications that appears to hold great promise is acoustic imaging by means of holography. The first papers on this subject appeared in 1966. but already research activity in the field is burgeoning. Tbree symposia whoUy devoted to acoustical holography have been held and tbe papers published in book form. The purpose of this book is to bring together the results of research in acoustical holography, some of it as yet unpublished, under one cover so that workers in holography, nondestructive testing, medical imaging, underwater imaging, and seismic exploration can decide whether this new technique can be useful to them. 240 pp. Englisch.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The solid molecular hydrogens are the simplest and most fundamental molecular solids. Except at ultrahigh pressures on the order of a few mega bars, where a transition to a metallic, atomic phase is expected, these solids are true molecular crystals in which the molecules retain their identity with properties not too different from those of the free molecules. At energies below the electronic excitation energy, the thermal and spectroscopic pro perties of these solids are determined by the translational, rotational, and intramolecular vibrational motions of the interacting molecules. The theo retical analysis of the solid-state properties in terms of the free molecules and the intermolecular interactions forms the main topic of this book. The available detailed knowledge of the properties of the free molecules makes it feasible to carry out this program to a large extent on the basis of first principles, and this is one of the attractive features of these systems. The solid hydrogens are dominated by quantum effects, the most out standing property being that the rotation of the molecules is free down to the lowest temperatures, in the sense that the rotational quantum number J characterizing the rotational motion of the free molecules remains a good quantum number in all of the solid-state phases except at ultrahigh pressures. 328 pp. Englisch.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -For out of olde hokes, in good feyth, Cometh all this newe science that men lere. Geoffrey Chaucer The Parliament of Fowls During the past two decades knowledge of the human menstrual cycle and of normal and abnormal reproduc tive function has increased at a dramatic rate. As rec ognized in this volume, this explosion of knowledge is due in large measure to the development of radio immunoassays for the measurement of the minute quantities of reproductive hormones found in the cir culation. Yet the foundations for the many recent developments were laid well in advance. The concepts and hypotheses tested were often suggested even be fore the hormones involved were identified and iso lated. A consideration of the historic aspects of re search in this field places recent research in the appropriate perspective. Moreover, as presented by Drs. vii viii FOREWORD Gruhn and Kazer, the history of progress in this field makes fascinating reading. A review of the history of reproductive endocri nology should be required reading for all students of the subject and reproductive endocrinologists in train ing. Dr. Griff T. Ross, a noted reproductive endocri nologist, often instructed his students that every hy pothesis he tested could be found in some form in the publications of previous scientists. The answers to present and future questions are often hidden in the lessons of the past. 256 pp. Englisch.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This is the tenth volume of a continuing series intended to provide a forum for publication of develop ments in f:lossbauer Effect t1ethodology and in Spectroscopy and its applications. r~ossbauer Effect t 1ethodo 1 ogy, Vo 1 ume 1 0, records the proceedings of the Tenth Symposium on r10ssbauer Effect Hethodo 1 ogy. The Sympos i urn 'laS sponsored by the Ne~' England Nuclear Corporation, with special emphasis on applications in catalysis and in biology. The Symposium VIaS held in the t,lercury Ballroom of the New York Hilton on February 1, 1976. Dr. f,1. Good presided over the meeting. 11ore than one hundred participants were involved in the technical sessions and the exhibit of H5ssbauer effect instruments, equipment and materials by Elscint, Inc., Ranger Engineering and New England Nuclear. Continued evolution and improvement was the keynote of the ex hi bi to As has been our experience in recent Symposia, many more papers were submitted than could be accommodated. The Selection Committee was hard-pressed to limit the number of papers, and the sessions were lengthy, despite their efforts. 368 pp. Englisch.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Features a Foreword by Dr. Dietrich Knorr. Fruit processing and preservation technologies must ensure fresh-like characteristics in foods while providing an acceptable and convenient shelf life, as well as assuring safety and nutritional value. Processing technologies include a wide range of methodologies to inactivate microorganisms, improve quality and stability, and preserve and minimize changes of fresh-like characteristics in fruit. High pressure as a food preservation technique inactivates microorganisms at room temperature or lower; thus, sensory and nutritional characteristics can be maintained. In recent years, a significant increase in the number of scientific papers in literature demonstrating novel and diversified uses of high pressure processing indicates it to be highly emerging technology. The effect of high pressure technology on the quality and safety of foods will be discussed. Selected practical examples in fruits and vegetables, dairy and meat industries using high pressure will be presented and discussed. A brief account of the challenges in adopting this technology for industrial development will also be included. 136 pp. Englisch.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book is a compilation of the lectures and oral and poster communications presented at the Advanced Study. Institute on 'Vascular Endothelium: Physiological Basis of Clinical Problems II,' which took place between June 20 and 30, 1992 in Rhodes, Greece. This third in a series of ASIs on vascular endothelium continued on the theme of the first (1988) ASI on 'Receptors and Transduction Mechanisms' and particularly expanded that of the 1990 conference on ''Physiological Basis of Clinical Problems. ' We continued the successful practice of bringing together clinicians and scientists: this was reflected equally well in the composition of the organizing committee as in the background of the particiJ ants. Endothelial cell functions and dysfunctions present as many challenges to the mvestigator as they do to the curious clinical practitioner. As these problems are necessarily different, this unique ten-day co-habitation of these individuals continued to offer fresh outlooks to each, stimulated potential collaborative efforts and, most importantly, advanced --ever so slightly--our knowledge of vascular biology. This year's conference was further enriched by the presence of several of our colleagues from Eastern Europe whom we are delighted to welcome as officially sponsored participants to this and future NATO-supported meetings. It is never superfluous to remind readers and participants that those signing at the bottom of this page, while responsible for many of the ASI's and the book's deficiencies, are but three of the many contributors to the successes. 244 pp. Englisch.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The International School of Fusion Reactor Technology started its courses 15 years ago and since then has mantained a biennial pace. Generally, each course has developed the subject which was announced in advance at the closing of the previous course. The subject to which the present proceedings refer was chosen in violation of that rule so as to satisfy the recent and diffuse interest in cold fusion among the main European laboratories involved in controlled thermonuclear research (CTR). In the second half of 1986 we started to prepare a workshop aimed at assessing the state of the art and possibly of the perspectives of muon- catalyzed fusion. Research in this field has recently produced exciting experimental results open to important practical applications. We thought it worthwhile to consider also the beneficial effects and problems of the polarization ofthe nuclei in both cold and thermonuclear fusion. In preparing the 8th Course on Fusion Reactor Technology, it was necessary to abandon the traditional course format because the influence of the workshop procedure was inevitable: the participants were roughly equally divided into experts in cold fusion and experts in thermonuclear fusion. The course had largely an interdisciplinary character as many disciplines were involved: atomic and molecular physics, nuclear physics, accelerator technology, system analysis, etc. Plasma physics was excluded, with a sigh of relief from the experts in thermonuclear fusion. 304 pp. Englisch.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Justbefore the preliminary programof Orbis Scientiae 1998 went to press the news in physics was suddenly dominated by the discovery that neutrinos are, after all, massive particles. This was predicted by some physicists including Dr. Behram Kusunoglu, who had apaper published on this subject in 1976 in the Physical Review. Massive neutrinos do not necessarily simplify the physics of elementary particles but they do give elementary particle physics a new direction. If the dark matter content ofthe universe turns out to consist ofneutrinos, the fact that they are massive should make an impact on cosmology. Some of the papers in this volume have attempted to provide answers to these questions. We have a long way to go before we find the real reasons for nature's creation of neutrinos. Another neutrino-related event was the passing of their discoverer, Fredrick Reines: The trustees of the Global Foundation, members of the Orbis Scientiae 1998, dedicate this conference to Fredrick Reines of the University of California at Irvine. The late Professor Reines was a loyal and active member of these series of conferences on the frontiers of physics and cosmology since 1964. He also sewed as one of the trustees of the Global Foundation for the past three years. Professor Reines discovered the most elusive particle, the neutrino, in 1954. We are proud to say that we recognized the importance of this discovery by awarding him the J. 264 pp. Englisch.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -An essential element in the development and functional integrity of all organisms is intercellular communication. This is achieved by the secretion of soluble messenger molecules which subsequently interact with receptor-effector pathways in the responsive cells. Hormones are traditionally defined as chemical messengers synthesized by endocrine glands. Unlike hormones produced by endocrine glands, growth factors are hormone-related substances produced by many tissues and play an important role in controlling growth and development. While the exact physiological roles of growth factors have yet to be elucidated, they play important roles in the regulation of cellular proliferation and/or differentiation during ontogenesis, growth and differentiation. During recent years there has been a substantial increase in research related to peptide growth factors, their receptors, and modes of action. With the discovery and characterization of numerous growth factors, it became clear that these growth factors had multiple features in common with classic hormones as well as with oncogenes. Furthermore, there are distinct families of growth factors based either on structural or functional similarities. 528 pp. Englisch.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -It is now well recognised that the texture of foods is an important factor when consumers select particular foods. Food hydrocolloids have been widely used for controlling in various food products their viscoelasticity, emulsification, gelation, dispersion, thickening and many other functions. An international journal, FOOD HYDROCOLLOIDS, launched in 1986 has published a number of stimulating papers, and established an active forum for promoting the interaction between academics and industrialists and for combining basic scientific research with industrial development. Although there have been various research groups in many food processing areas in Japan, such as fish paste (kamaboko, surimi), soybean curd (tofu), agar jelly dessert, kuzu starch jelly, kimizu (Japanese style mayonnaise), their activities have been conducted in isolation of one another. The interaction between the various research groups operating in the various sectors has been weak. Symposia on food hydrocolloids have been organised on several occasions in Japan since 1985. Professor Glyn O. Phillips, the Chief Executive Editor of FOOD HYDROCOLLOIDS, suggested to us that we should organise an international conference on food hydrocolloids. We discussed it on many occasions, and eventually decided to organise such a meeting, and extended the scope to include recent development in proteinaceous hydrocolloids, and their nutritional aspects, in addition to polysaccharides and emulsions. 528 pp. Englisch.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Collections of this sort are a regular publication feature of the Laboratory of Mathemati cal Geology of the Order of Lenin V. A. Steklov Mathematical Institute of the Academy of Sci ences of the USSR. In the future it is intended that further collections and monographs reflect ing the activity of the Laboratory be issued. In this present collection, in addition to workers of the Laboratory of Mathematical Geology, specialists of both Russia and many foreign countries participated. This has permit ted us to display the general level of mathematization of geology in 1966. In order to enhance the overall view, the editors have included a section 'Chronicle and Bibliography' in which in formation is given on the most important actions relating to mathematization of geology taking place in 1965 and the first half of 1966, and which includes a bibliography on two-dimensional regressions having great practical value in geology but little known to us in the Soviet Union. 292 pp. Englisch.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Symptoms of Plant Virus Infection.- Transmission of Plant Viruses.- Plant Virus Structure.- Plant Virus Replication.- Plant Virus Disease Control.- Techniques in Plant Virology. 192 pp. Englisch.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -In August 1982 a group of 104 physicists from 70 laboratories of 31 countries met in Erice to attend the 20th Course of the Inter national School of Subnuclear Physics. The countries represented at the School were: Argentina, Australia, Austria, Belgium, Brazil, Bulgaria, Canada, Chile, China, Czechoslovakia, France, the Federal Republic of Germany, Greece, India, Iran, Israel, Italy, Japan, Morocco, the Netherlands, Norway, Poland, South Africa, Spain, Sweden, Switzerland, Turkey, the United Kingdom, the United States of America, Yugoslavia, and Zimbabwe. The School was sponsored by the Italian Ministry of Public Education (MPI), the Italian Ministry of Scientific and Techno- logical Research (MRSI), the Sicilian Regional Government, and the Weizmann Institute of Science. This year, on the occasion of the 60th birthday of Chen Ning Yang, the 'Ettore Majorana' Centre decided to pay tribute to the outstanding scientific achievements of one of the most prominent scientists of our time, by dedicating the 20th Course of the International School of Subnuclear Physics to a review of the pre sent status of one of the fields of physics where Chen Ning Yang has contributed most profoundly: gauge interactions. The theo retical foundations and the most recent developments were presented by Chen Ning Yang. The most general consequences of a gauge inter action -- supersymmetry -- with its theoretical aspects and the experimental implications were discussed by Sergio Ferrara and Demetrios Nanopoulos. 812 pp. Englisch.