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Taschenbuch. Condizione: 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. Condizione: 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. Condizione: 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. Condizione: 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. Condizione: 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. Condizione: 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. Condizione: 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. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Oscar Harkavy offers a unique insider's view of the fascinating world of population politics. Chapters trace the growth of the movement as well as the various foundations, governments, and intergovernmental organizations which were an integral part of it from its beginning in the 1950s, through its growth during the 60s and 70s, to the present. Topics include the role of social science in understanding the causes and effects of population growth; reproductive research and contraceptive development; and the politics of family planning, sex education, and abortion in the United States. 296 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The seventh Advanced Study Institute (ASI) on Techniques and Concepts of High Energy Physics was held for the second time at the Club St. Croix, in St. Croix, U.S. Virgin Islands. The ASI brought together a total of 75 participants, from 19 countries. 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 countries. As in the case of the previous ASIs, 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 six ASIs, and prove to be of value to a wider audience of physicists. 280 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This conference brought together experts from 15 countries to discuss application of Artificial Intelligence (AI) techniques to the nuclear industry. It was apparent from the meeting that even those active in the field were surprised at the extent of work and the progress made. There was a strong impression that application of this technology to nuclear power plants is inevitable. The benefits to improved operation, design, and safety are simply too significant to be ignored. This is a much different conclusion than might have been reached a few years ago when the technology was new and people were struggling to understand its significance. We believe that this meeting reflects a major turning point for the technology. It has moved from being a topic understood only by specialists to a situation where users are the most active people in the field. A broad array of innovative work is described from all of the participating countries. The activity in the u.s. is large and diverse. Although there is no nationally focussed policy for AI research in the U.S., many of these activities are reported here. Japan and France have a strong drive to integrate AI technology into their nuclear plants, and this is reflecteq in these proceedings. 948 pp. Englisch.

Taschenbuch. Condizione: 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. Condizione: 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. Condizione: 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. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -From molecular biology to clinical applications of selective receptor blockade, the present volume compiles the latest advances of this emerging field. Of particular importance is the attention given to the newly discovered AT2 receptors, and the physiology and pathophysiology of angiotensin receptor subtypes. The book will provide clinicians treating cardiovascular disease and hypertension with a clearer understanding of this therapeutically important and complicated hormone. 440 pp. Englisch.

Taschenbuch. Condizione: 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. Condizione: 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. Condizione: 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. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The solubility of gases and liquids in liquids is of great importance in large areas of operations based on chemical concepts. Phenomena have appeared to be so varied that even experts have from time to time remarked on the difficulty of seeing a consistent pattern. Now for the first time the essential pattern of all known gas solubility data is set out in a graphic form for all to see. The continuous merging of the gas-liquid systems and the liquid-liquid systems is also illustrated. The pattern opens the way to rational predictions. The new data given for the lower alkanes and alkenes, the three methylamines, ammonia, bromomethane, and chloroethane, together with my previously reported data on hydrogen sulfide, dimethyl ether, chloromethane, and sulfur dioxide, have been obtained by a bubbler-manometer procedure which is fully described. Not only are these data of significance in many chemical processes, but they have also been vital to the development of the overall essential pattern covering all gases. The book is for chemists, chemical engineers, biotechnologists, certain physi cists, and teachers and students in these disciplines. It is a book for all those who are concerned with the use and inculcation of the fundamental, even rudimentary, principles of chemistry. 288 pp. Englisch.

Taschenbuch. Condizione: 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. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -of Volume 8.- 71 Allergic reactions in acute bacterial and viral infectious diseases and active immunization procedures.- 72 Allergy and immunity in tuberculosis.- 73 Immunoallergologic aspects of syphilis.- 74 Allergy and immunity in leprosy.- 75 Mycotic allergy.- 76 Immunoallergologic aspects of gonorrhoea.- 77 Immunoallergologic aspects of chancroid.- 78 Immunoallergologic aspects of lymphogranuloma venereum.- 79 Immunoallergic manifestations of human protozoan and helminth diseases.- 80 Insects, mites and other venomous arthropods causing allergic or immunologic reactions in man. 376 pp. Englisch.

Taschenbuch. Condizione: 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. Condizione: 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. Condizione: 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. Condizione: 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. Condizione: 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. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The present volume contains all the contributions and general discussion presented at the International Satellite Meeting on Func tion and Metabolism of Phospholipids in Central and Peripheral Nervous Systems held at Cortona, Tuscany, Italy in August 1975. The Satellite Meeting was organized on the frame of the 5th Inter national Congress of the International Society for Neurochemistry (Barcelona, 2-7 september 1975) and was just run before it. The publication of the scientific content of this volume has been made possible by the collaboration of the speakers, the discussants, the Meeting Chairman, the section chairmen and of all the scientists who have taken part at the Symposium and who deeply and actively discussed the lectures and the contributions to the General Discus sion which were delivered. In order to obtain rapid publication of the volume, however, the single discussions for each delivered contribution will not be reported here. The general subject of membrane structure, of the turnover of its lipid components in CNS and PNS, their functional implica tions and pharmacological actions, was explored in details from the stand-points of the various contributors in biophysics, biochem istry, physiology, cytology, pharmacology and pathology. The whole Symposium was effiCiently introduced and closed by Dr. W. Stoffel. The meeting has been thought to have been very successful. 428 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -1 Introduction: Disease, Disability, and Psychodiagnostic Concepts in Childhood.- 2 Childhood Psychosis: A Historical Review.- 3 Specific Language Dysfunctioning in Children: A Historical Overview.- 4 Deviant and Normal Social Development.- 5 Normal Social Development.- 6 Psycholinguistic Development: Functioning and Dysfunctioning.- 7 Disordered Thinking.- 8 Diagnosis and Evaluation of Disordered Thought and Language.- 9 The Psychological Testing of Dysphasic and Psychotic Children.- Epilogue.- References and Bibliography. 216 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The electromagnetic theory of Maxwell and the electron theory of Lorentz and Drude stimulated a great deal of experimental work on the optical properties of solids in the late nineteenth and early twentieth centuries. The time was not then ripe, however, for general progress in this field. The experimental techniques were not available to produce suitable specimens for optical measurements with well defined structure and purity. On the theoretical side, the classical electron theory provided only a very incomplete account of the interaction of light waves with matter. The centre of interest in optical research moved to atomic and molecular spectroscopy where quantitative results were easier to obtain. The quantum theory, starting with Bohr's theory of 1913, provided a highly successful basis for the interpretation of the optical spectra of atoms and molecules. The present-day theory of the optical properties of solids is based on the quantum theory of electrons in solids, developed from the early researches of Sommerfeld and Bloch, and the theory of lattice vibrations originating in the research by Born. The formal con nection between optical absorption and electron wave functions in solids has been well known since the 1930s but it is only recently that electron energy band calculations have achieved sufficient accuracy to make profitable a comparison of experimental and theoretical results. Without some guidance from a theoretical band structure calculation, it would be difficult to make any progress with the in terpretation of an optical absorption spectrum. 152 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The study of sweetness and sweeteners has recently been an area well served by books at all levels, but this volume was planned to fill what we perceived as a gap in the coverage. There appeared to be no book which attempted to combine a study of sweetness with a thorough but concise coverage of all aspects of sweeteners. We set out to include all the important classes of sweeteners, including materials which do not yet have regulatory approval, so that clear comparisons could be made between them and their technological advantages and disadvantages. To achieve our first aim, of sufficient depth of coverage, the accounts within this volume are comprehensive enough to satisfy the requirements of a demanding readership, but cannot be exhaustive in a single volume of moderate proportions. The second aim, of breadth and conciseness, is satisfied by careful selection of the most pertinent material. For the purposes of this book, a sweetener is assumed to be any substance whose primary effect is to sweeten a food or beverage to be consumed, thus including both the nutritive and non-nutritive varieties, from the ubiquitous sucrose to the lesser known, newer developments in alternative sweeteners. The volume has its contents structured in a logical manner to enable it to be used in an ordered study of the complete subject area or as a convenient reference source. 320 pp. Englisch.

Taschenbuch. Condizione: 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.