springer us jul 2013 (238 risultati)

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Following their recognition by GUmbel (1874), lamprophyres were treated for an entire century as little more than obscure curiosities. Although this situation has changed recently, with a flowering of publications and active workers, lamprophyres remain almost the only group of igneous rocks which have not yet received attention in a dedicated monograph. In five exploratory reviews (1977-1987), the writer aimed to set out what was known about these rocks. The lUGS Subcommission on igneous rock systematics had meanwhile presented its nomenclatural framework (Streckeisen 1979). All this has now been overtaken by a recent explosion of interest, epitomized not least by lamprophyres' greater prominence in the 4th International Kimberlite Conference Proceedings. More data have become available since 1985 than over the entire previous century, and it is obviously impossible for such an extraordinary outpouring to be fully reviewed in this first, preliminary book. At the risk of dissatisfying some readers, therefore, this book concentrates on factual matters, and on a broad overview rather than minutiae. Because not even a world map of known lamprophyres was previously available, almost half the book is deliberately taken up by the first global lamprophyre compilation, and its commensurately extensive Bibliography. Such a compendium of largely objective information is believed to be of more immediate interest and lasting value than a premature pottage of petrogenetic polemic. Chapters 1-7 bring previous studies up to date, and concentrate on factual information. 296 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 -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 -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 -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 -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. 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 -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 -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. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -An analysis was needed which would indicate the purity and acid content of maleic anhydride. Small amounts of acid can affect the copolymerization behavior of the anhydride [1] and may cause rearrangement and polymerization of the diene component in Diels-Alder reactions [2]. Standardized solutions of tertiary amines such as tripropylamine and N-ethylpiperidine have been used by Siggia and Floramo [ 1] to titrate maleic and phthalic acids in their anhydrides. This method is rather specific for maleic acid since the acids which might be included in the determination are those with dissociation constants 3 of 10- , or greater, in water. This would not include 5 acids such as succinic (dissociation constant, 7 10- ) 4 or fumaric (9.3 10- ). Anhydrides have been determined in the presence of their acids by reaction with excess aniline and deter mination of the excess [3]. The acid content is then found by difference in anhydride and total acidity by hydrolysis. Mixtures of anhydride and acid have been determined by difference using either sodium methylate in methanol to titrate the free acid plus one equivalent per mole of the anhydride and sodium hydroxide [4], or trimethyl benzylammonium hydroxide [5] in the presence of water to titrate the free acid plus two equivalents per mole of the anhydride. The determination of free acid by the difference in the two titrations yields poor results for samples of low acid content. 192 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 -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 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 -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 -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. 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 -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 -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 -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 -It is possible to increase cost-effectiveness and lower the risk of lawsuits while improving patient care and office morale. In this revolutionary work, the authors, a seasoned primary care physician and an experienced defense attorney, detail risk management techniques and introduce the concept of co-active medicine. Their book will provide practical guidance for all primary care physicians, and will serve as an invaluable resource for risk management consultants and malpractice attorneys. 256 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This is a book on reminiscence, or more modestly a book on reminiscence in motor tasks, or more modestly still on reminiscence in pursuit rotor learning, with occasional references to other types of reminiscence. The vast majority of experiments investigating reminiscence with the pur suit rotor have been carried out within the framework of Hullian learn ing theory. Thus, of necessity, this book also will be much concerned with that theory. Some readers may feel that so much detailed attention paid to one piece of apparatus and one now rather discredited theory, is overdone; we could not agree with such an evaluation. There are several features of pursuit-rotor performance which make it particularly worthy of attention. One of the more important of these features is the easy replicability of many of the phenomena found in performance of this task; this is our first point. Replicability is the life blood of science; what cannot be replicated by any well-trained observer is of doubtful status in science, and on this score pursuit-rotor work certainly emerges as perhaps the most reliable set of observations in experimental psychology. The effects of massing and spacing; of rest pauses of different length; of switching from massed to spaced learn ing, or vice versa; of interpolating different activities; of introducing distracting stimuli; of switching from right to left hand, or vice versa; of changing the speed of rotation, or the diameter of the target disk these are clear-cut and replicable as few phenomena in psychology are. 456 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The history of humankind cannot be charted as a steady linear upward slope but rather as a series of quantum jumps of short duration separated by plateaus of varying duration during which no progress occurred. During these periods of no progress, the revolutionaries who produced the preceding quantum jump pass from the scene, their principles and concepts become concretized as dogma, and a new establishment is born whose sacred duty is the protection of the dogma against the new revolutionaries. The last quantum jump was the scientific revolution of the nineteenth century which laid the groundwork for our present technological civilization, and perhaps more important, also shaped our philosophical view of what is a human being. Since the basis of this scientific revolution was reason, logic, measurement, and total reliance upon the organized senses, the resultant view of the person is that of an automaton, functioning in a clockwork world. The power of this view is evident in the advances made in medical science up until the 1950s. The twin triumphs of sanitation and preventive medicine and the develop ment of the antibiotic concept completely revolutionized the practice of medicine, and by 1950 those of us in the profession were anticipating a new golden age of medicine. But, in fact, the reality has been disaster. The mechanistic view of humanity has led to more and more technologi cal applications of ever increasing complexity and cost and ever de creasing efficiency. 248 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -At the close of the year 1900, motor vehicle registrations throughout the United States totaled 8000. These vehicles rode on unpaved and often dusty country roads. The only problem of traffic was an occasional pedestrian or a frightened horse or cow frenzied by the roar of this new creature. Today more than 82,000,000 registrations, representing 50% of the world's automobiles, are recorded in this country. In 1963 these vehicles traveled 798 billion miles over newly constructed modern highways, expressways, freeways, quickways, and thru ways, as well as improved rural and urban roads and streets. Out of all this has sprung the traffic engineer. Today's modern roadway is an engineering structure which has been developed through sound principles of design with provisions for safety and efficiency. An example of this safety factor can be found by the exacting specifications for cross sections, grades, roadside control, medians, and other design features. For many years, the responsi bility for controlling traffic fell naturally into the domain of the police. However, as traffic increased, many problems developed which were beyond the scope of normal police work. Since the highway system is an engineering structure which requires an engi neering approach to appraise operating problems and engineering techniques to solve them, the traffic engineer came into being. 236 pp. Englisch.

Taschenbuch. Condizione: 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.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Critical Points and Multicritical Points (Abstract).- Series Expansion Approximants for Singular Functions of Many Variables.- Structure and Thermodynamics of Interfaces.- A Van Der Waals Fixed Point.- Spin-Spin Correlation Functions for the Two-Dimensional Ising Model.- Scaled Particle Theory of Hard Sphere Fluids to 1976.- Statistical Mechanics of Lattice Boson Field Theory.- On The Use of Determinants and their Expansions for Various Physical Problems.- Ring Diagram Contribution to Electron Correlations.- Fluctuations Near and Far from Equilibrium.- Stochastic Equations for Classical and Quantum Distribution Functions.- Stationary States and Noise in the Ballast Resistor, an Electro-Thermal Instability in a Conducting Wire.- Speculations on the Intrinsic Significance of Random Interactions.- A Dilation Problem in Non-Equilibrium Statistical Mechanics.- The Fractal Geometry of Percolation, Polymers and almost Everything Else.- On the Iterative Solution of a Stochastic Mapping.- Theory of the Surface Contribution to the Low Temperature Specific Heat of a Semi-Infinite Solid.- Optical Spectra Line Shape for Mixed Crystals.- Nonadiabatic Approach to Vibronically Assisted Radiationless Transitions.- The Generalized Master Equation and its Applications.- Two-Dimensional Anisotropic Random Walks.- Random Walks and Gamma Functions.- Steady-State Kinetics of a Linear Array of Interlocking Reactions.- Monte Carlo Models of Self Replicating Macromolecules I.- Combinatorial Aspects of Dynamics in Biological Systems.- The Transition of Two Stranded DNA to Single Strands.- Effective Behavior of Heterogeneous Media.- Unstable Brownian Motion of a Bus Trip.- Integration Errors in Image Reconstruction of Circularly Symmetric Objects in Computer Assisted Tomography.- The ¿Internal Referencing¿ Structural Instability in an Environment Characterized by Random Variation: The Example of the N.Y.C. Banks in the Crisis of 1857.- The Theory of the Glory.- Exotic Matter in the Universe.- Some Statistical Observations from a 75 Year Run of Sears Roebuck Catalogues. 828 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The first volume of Evolutionary Bio/ogy was published eleven years ago. Since that time eleven volumes and one supplement have appeared. As stated in earlier prefaces, we are continuing the focus of this series on critical reviews, commentaries, original papers, and controversies in evolu tionary biology. lt is our aim to publish papers primarily of greater length than normally published by society journals and quarterlies. We therefore invite colleagues to submit chapters that fall within the focus and standards of Evolutionary Bio/ogy. The Editors vii Contents 1. Precambrian Evolution of Photosynthetic and Respiratory Organisms lohn M. 0/son Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Basic Assumptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Photosynthetic Energy Conversion and Electron Transport . . . . . . . 6 Oxygen-Evolving Organisms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Photosynthetic Bacteria . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Photoassimilation and Cyclic Electron Flow . . . . . . . . . . . . . . 13 . . . . . Acetate Assimilation . . . . . . . . . . . . . . . . . . . . . . . . . . 15 . . . . . . . . . . . The Common Ancestor . . . . . . . . . . . . . . . . . . . . . . . . . . 17 . . . . . . . . . . . Chlorophyll. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 . . . . . . . . . . . . . Quinone. 19 Linear Electron Transport . . . . . . . . . . . . . . . . . . . . . . . 22 . . . . . . . . . Light-Harvesting Systems. . . . . . . . . . . . . . . . . . . . . . . . 22 . . . . . . . . . Evolution of Photosynthetic Bacteria . . . . . . . . . . . . . . . . . . 22 . . . . . . . Purpie and Green Bacteria . . . . . . . . . . . . . . . . . . . . . . . 23 . . . . . . . . . Evolution of Blue-Green Algae . . . . . . . . . . . . . . . . . . . . . . 24 . . . . . . . . Weak Electron Donors for the Protoalgae . . . . . . . . . . . . . . 25 . . . . . Evolution of Respiration . . . . . . . . . . . . . . . . . . . . . . . . . . 29 . . . . . . . . . . General Remarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 . . . . . . . . . . . . . References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 . . . . . . . . . . . . . . 2. Molecular Structure and Protein Variation within and among Populations Richard K. Koehn and Waller F. Eanes Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 . . . . . . . . . . . . . . Molecular Properlies and Structural Variation . . . . . . . . . . . . . 45 . . . . Amino Acid Composition and Quaternary Structure . . . . . . . . 46 . . Protomer Size and Quaternary Structure . . . . . . . . . . . . . . . 47 . . . . . ix X Contents Enzyme Polymorphism and Quaternary Structure . . . . . . . . . . . 50 . . . Enzyme Polymorphism and Subunit Size . . . . . . . . . . . . . . . . 53 . . . . . . Data and Analyses . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 . . . . . . . . . . . Drosophila Enzyme Polymorphism . . . . . . . . . . . . . . . . . . 60 . . . . . . . Human Enzyme Polymorphism . . . . . . . . . . . . . . . . . . . . 63 . . . . . . . . Enzyme Polymorphism: Structure and Size . . . . . . . . . . . . . . . 67 . . . . . 688 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The Fourth Annual Pezcoller Symposium entitled Adhesion Molecules: Cellular Recognition Mechanisms was held in Rovereto, Italy, June 24-26, 1992 and was focussed on the detailed mechanisms whereby cells utilize certain integral membrane proteins to perceive their surrounding environment and interact with it. With timely presentations and stimulating discussions this Symposium addressed the genetics and biochemistry of adhesion molecules, the regulation of their functions and their role in cancer and the immune system. Emphasis was given to adhesion proteins in the integrin family because of the widespread distribution of this group of molecules and its important role in essentially all eukaryotic biological systems. The regulation of integrin genes and their expression are discussed in detail, as are specific aspects of the genetics of fibronectin. The molecular basis for the regulation of certain integrins, the function of these proteins in determining cell adhesion, and the consequences of this adhesion for the function of the cells involved are discussed. The role of certain integrins in stimulating signal transduction, the essential involvement of integrins in conditioning the function of T and NK cells function, the heterogeneity of integrins and its biological consequences, and the role of cell adhesion molecules in tumor cells invasion and metastases are all extensively analyzed. New information was presented on the role of CD44 and splice variants in normal differentiation and tumor progression. 308 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 -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.