Springer springer us jul 2012 (176 risultati)
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Taschenbuch. Condizione: Neu. Neuware - In July 1979, the Faculty of Pharmacy of the University of Bologna received a proposal from Professor Breccia to hold an International Conference on 'Nitroimidazoles: Chemistry, Pharmacology and Clinical Application'. Because of the great interest in these drugs in various fields, I was ve…ry pleased to accept the proposal and to give to the Conference, the sponsorship of the University of Bologna. It was an added pleasure to accept the chairmanship of the meeting, together with Professors Sensi and Adams. At the same time, the Minister of Education approved the proposal also from the Faculty of Pharmacy, to offer an advanced Course on the tOpic: 'Radiosensitizers of Hypoxic Cells'. This Course was subsequently approved by a special Committee of the NATO Scientific Programme as an Advanced Study Institute. Since the subject matter of both the Conference and the Course are closely inter-related, it was logical to plan the Conference as part of the overall Course. Bringing together specialists from quite different and apparently unrelated fields of research, but all with an interest in the study and application of one single group of drugs, is a novel idea with intriguing possibilities. The volumes of the proceedings include contributions from experts with such diverse interests as synthetic chemistry, mechanism of drug action, parasitology, anaerobic bacteria and protozoa, pharmacology and toxicology, radiation sensitizers for use in radiotherapy and the development of drugs for use in cancer chemotherapy generally.
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Taschenbuch. Condizione: Neu. Neuware - Naturally occurring antinutrients and food toxicants, and those formed during food processing, adversely affect the nutri tional quality and safety of foods. Because of the need to improve food quality and safety by plant breeding, fortification with appropriate nutrients, and processing m…ethods, and because of the growing concern about possible direct relationships between diet and diseases, research is needed to: (1) evaluate the nutritive quality and safety of crops and fortified, supplemented, and processed foods; (2) define conditions that favor or minimize the formation of nutritionally antagonistic and toxic compounds in foods; and (3) define the toxicology, metabolism, and mechanisms of the action of food ingredients and their metabolites. As scientists interested in improving the safety of the food supply, we are challenged to respond to the general need for exploring: (1) possible adverse consequences of antinutrients and food toxicants; and (2) factors which contribute to the formation and inactivation of undesirable compounds in foods. Medical research offers an excellent analogy. Studies on causes and mechanisms of disease processes are nearly always accompanied by parallel studies on preventive measures and cures. Such an approach offers the greatest possible benefits to the public.
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Taschenbuch. Condizione: Neu. Neuware - Even though artificial insemination is a simple technique that has been practiced for over a century, it has long been carried out under poor conditions due to an inadequate understanding of repro ductive physiology and antagonistic socio-ethical attitudes. Accor dingly, until fairly recen…tly it was a medical act with a limited scientific basis which was practised more or less clandestinely. The development of semen preservation has totally changed the conditions of artificial insemination, especially in regard to flexibility and safeguards in its application. Although the use of fresh semen continues, it is now clear that the future of arti ficial insemination is closely linked to semen preservation. During the past two decades, semen banks have been developed in many countries. This has most often been the result of the initiative of individual physicians in either the private or public sectors. In France, a national system of semen banks (CECOS) was begun in 1973. Although there has been cooperation within this system in the areas of both research and management, a need to com municate and compare experiences with those from other countries was perceived. Thus, the first International Symposium on Artifi cial Insemination and Semen Preservation was planned and held in Paris, France in April 1979. Thirty-seven countries were represented byihdividuals from many concerned disciplines.
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Taschenbuch. Condizione: Neu. Neuware.
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Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, , GermaniaBuchWeltWeit Ludwig Meier e.K.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Among seismic waves generated by widely dilferent types of sources, the waves that are the most interest ing and of the longest duration are usually surface waves (which are also called normal waves, interference and channel waves,… natural vibrations of layers, etc. ). These waves are distinguished by their dispersion and reso nance, and are used in many investigations - in the determination of the structure of the medium (the existence of surface layers and waveguides), in the determination of the coordinates and properties of the source (in par ticular its energy and mechanism), in the identification of subterranean exploSions, in the mapping of micro- seisms, in the tracing of storms, etc. Outlines of the wide literature concerning surface waves can be found in [2, 9, 40J. Surface waves can be classed as Rayleigh or Love waves, depending on their velocity and polarization: the displacements of particles in Rayleigh waves are parallel, and the displacements in Love waves perpendicular, to the vertical plane containing the direction of propagation (some variation from this polarization is possible close to the source or in the presence of horizontal inhomogeneities in the medium). The present work is devoted to the calculation and investigation of Love waves in a vertically layered medium. The method used is based on the spectral theory of linear differential operators. ' This method is much more effective than previously applied methods based on the approximation of the medium by a set of homogeneous layers. 108 pp. Englisch.
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Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, , GermaniaBuchWeltWeit Ludwig Meier e.K.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The present work is an attempt to provide a systematic treatment of genetic linkage in diploid heredity. Part A presents a general account of statistical methods which can be brought to bear on the problem. The primary emphasis is…on the practical aspects of estimation. A large proportion, if not the majority, of mutant genes fail to match up to 'textbook' genes-with faultless segregation ratios and expression-yet, these are the materials with which the practical researcher has to cope. For this reason, it is important to know how to deal with the assortment of genes which may display significant deviations from expectation. Part B examines the accumulated data on linkage for most of the laboratory mammals and provides a comprehensive and up-to-date survey. The need for a critical review has often been expressed and it is hoped that the present analysis will fill the gap. The volume of material is probably the most important in the animal kingdom other than that for Drosophila species. 340 pp. Englisch.
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Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, , GermaniaBuchWeltWeit Ludwig Meier e.K.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -In the book are reported the main results presented at the Third International Workshop on Data Analysis in Astronomy, held at the EUore Majorana Center for Scientific Culture, Erice, Sicily, Italy, on June 20-27,1988. The Workshop… was the natural evolution of the two previous ones. The main goal of the first edition (Erice 1984) was to start a scientific interaction between Astronomers and Computer Scientists. Aim of the second (Erice 1986) was to look at the progress in data analysis methods and dedicated hardware technology. Data analysis problems become harder whenever the data are poor in statistics or the signal is weak and embedded in structured background. Experiments collecting data of such a nature require new and non-standard methodologies. Possibilistic approaches could be merged with the statistical ones, in order to formalize all the knowledge used by the scientists to reach conclusions. Moreover, the last decade has been characterized by very fast developments of Intelligent Systems for data analysis (knowledge based systems, . ) that would be useful to support astronomers in complex decision making. For these reasons, the last edition of the workshop was intended to provide an overview on the state of the art in the data analysis methodologies and tools in the new frontieres of the astrophysics (y-astronomy, neutrino astronomy, gravitational waves, background radiation and extreme cosmic ray energy spectrum). The book is organized in two sections: - Data analysis methods and tools, - New frontieres in astronomy. 428 pp. Englisch.
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Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, , GermaniaBuchWeltWeit Ludwig Meier e.K.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Advances in Cell Biology has been initiated as a continuing, multi-volume series to report on the progress of a wide spectrum of problems of cell structure and cell func tion. In arranging these volumes individual contributors are…asked not only to review the major new information, but especially to present the state of a given problem or area by discussing the current central issues, speculations, concepts, hypotheses, and technical problems. We intend, in addition, that these volumes will not be concerned with comprehensive reviews of the recent literature but will consist rather of presenta tions of an interpretative and integrative nature, based on selection of major research advances. It is our aim that these volumes should provide the means whereby cell biologists may keep themselves reasonably well informed about the current progress in research areas in cell biology in which they are not immediately or directly involved themselves. The articles, nevertheless, are expected to bring into focus the experimental objectives of the specialists in a given research area. D.M.P. L. G. E. M. vii Contents v Contributors Preface vii Bacterial Chromosome Replication 3 I. Peter L. Kuempel 57 2. Structure and Replication of Eukaryotic Chromosomes David M. Prescott Ultrastructure and Interaction of the Kinetochore and Centriole 3. 352 pp. Englisch.
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Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, , GermaniaBuchWeltWeit Ludwig Meier e.K.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The fourth course of the International School of Physics of Exotic Atoms took place at the 'Ettore Majorana' Center for Scien tific Culture, Erice, from March 31 to April 6, 1984. As tradition, exotic atoms have been a tool for stu…dying elec tromagnetic, weak and strong interactions at low energies. We felt it appropriate to have a full course devoted to a discussion of the information to be gained on the fundamental interactions from the study of low energy systems. In this kind of physics, which is characterized experimentally by very intense particle sources and very sensitive apparatuses, one can search for rare events and can perform precise measurements. Sensitive tests of the predictions of current theories of electro weak and strong interactions can thus be achieved. The course was attended by 54 participants from 23 institutes in 9 countries. The morning lectures reviewed the achievements of the field in the last few years and the afternoon seminars dealt with new results and projects. 516 pp. Englisch.
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Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, , GermaniaBuchWeltWeit Ludwig Meier e.K.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -During the last 30 years our knowledge and understanding of molecular processes has followed the development of increasingly sophisticated tech niques for studying fast reactions. Although the results are reported in papers and rev…iews, it is sometimes difficult for those not themselves active in these fields to find their way through the mass of published material. We hope that each book in this series will present a clear account of the present state of knowledge in a particular field of physical chemistry to research workers in related fields, to research students, and for the preparation of undergraduate and post-graduate lectures. Each chapter describes the theoretical develop ment of one area of study and the appropriate experimental techniques; the results presented are chosen to illustrate the theory rather than to attempt a comprehensive review. The first volume published in 1972 was concerned with the reactions of small molecules and free radicals in the gas phase. The development of flash photolysis in the 1950s paved the way by making it possible to generate free radicals in sufficient concentration for a spectroscopic' snapshot' to reveal their molecular structure. Their role in kinetic systems could then be followed directly, rather than be inferred from mechanism. The shock tube enabled gas mixtures to be heated to any desired temperature in a time which was shorter than subsequent chemical reactions. Discharge-flow methods enabled the reactions of atoms and free radicals to be studied directly. 296 pp. Englisch.
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Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, , GermaniaBuchWeltWeit Ludwig Meier e.K.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -'People . . . see you sweat in agony, turn pale, turn red, trem ble, vomit your very blood, suffer strange contractions and con vulsions, sometimes shed great tears from your eyes, discharge thick, black and frightful urine, or hav…e it stopped up by some sharp rough stone that cruelly pricks and flays the neck of your penis. ' \* These 16th century frustrations of Michel de Montaigne which most graphically reflect his experience with renal colic still plague approximately 1 per 1000 individuals in the United States annually. Since as many as 75% of clinically. apparent episodes of renal colic represent single nonrecurring events, physicians not in frequently approach the differential diagnosis of nephrolithiasis in a less than adequate fashion and assume that the incident may prob ably never recur after the single attack. However, the ureteral or bladder stone actually represents one form of abnormal crystalline precipitation; parenchymal nephrocalcinosis, silently progressive azotemia, and asymptomatic renal pelvic calculi may also stem from the same pathological process(es) which conditioned the for mation of the ureteral or bladder stone. In this regard it is worth emphasizing that the postmortem incidence of renal calculi is some tenfold greater than that presumed from surveys wherein a clinical attack of nephrolithiasis is the sole determinant. \*In Familiar Medical Quotations. M. B. Strauss, Ed. Little Brown, Boston, 1968, p. 646. v vi FOREWORD The last decade has witnessed the birth of new knowledge in urolithiasis research. 176 pp. Englisch.
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Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, , GermaniaBuchWeltWeit Ludwig Meier e.K.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -During October 18-31, 1980, the first course of the Inter national School of Pure and Applied Biostructure, a NATO Advanced Study Institute was held at the 'Et tore Majorana Center for Scien tific Culture' in Erice, Sicily, co-spon…sored by national and international agencies. The subject of the course was 'Cell Growth', with participants (from 16 different countries) selected worldwide. The study of cell growth has been one of humanity's most challenging problems and it has been approached from many differ ent points of view, such as biochemistry, genetic engineering, cell biology, zoology, oncology, immunology, biophysics and a few other fields. It has been very difficult to keep such varied points of view all in one room and in one audience, because of the heterogeneity of background and inherent difficulty of communica tion, with occasional nominalistic rather than factual debates. This Institute aimed to bypass those limitations by approaching in a structured and tutorial fashion the problem of cell growth in three dimensions: (1) in terms of the various disciplines involv ed, from molecular to cellular biology, from genetic engineering to clinical oncology, from biophysics to immunology; (2) in terms of the system studied, from prokaryotes to eukaryotes and cancer cells; (3) in terms of the various levels of macromolecular orga nization, from membrane to cytoskeleton and chromatin. 840 pp. Englisch.
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Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, , GermaniaBuchWeltWeit Ludwig Meier e.K.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -In alternating years, the Denver X-ray Conference turns its principal attention, through the choice of subjects for the plenary lectures, to various aspects of either X-ray fluorescence or dif fraction. This is a 'fluorescence' yea…r, and the three invited lecturers are experts in techniques that are at, or perhaps yet a bit beyond, the forefront of our understanding and technology in that field. The common denominator in selecting these subjects was that each is approaching a full elucidation of theory, and active develop ment of practical hardware, and that each presents analytical pos sibilities which can hardly be ignored in the next generation of commercial instrumentation. In other words, these are techniques that many of us shall likely find ourselves using by the end of the decade. The greatest difficulty in selecting the subjects was the need to overlook others, particularly 1) the increasing inter est in 'in-situ' or on-line analytical control, for tagging, identi fication or sorting; and 2) the broad subject of the computeriza tion of instrumentation, with its powerful impact on the design of hardware, and its open invitation to the theorist to create more exact mathematical models of the analytical process, regardless of complexity, in the expectation that programmers will find ways to implement solutions in affordable, dedicated computers. 420 pp. Englisch.
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Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, , GermaniaBuchWeltWeit Ludwig Meier e.K.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The 52nd Colloid and Surface Science Symposium of the Divis ion of Colloid and Surface Chemistry of the American Chemical Society was held in Knoxville, TN, June 12-14, 1978, and one of its Sections was devoted to the topic of Solu…tion Chemistry of Surfactants. Although it was billed as the Section on Solution Chemistry of Surfactants, but it was indeed a veritable inter national symposium on this topic as 51 papers by about 100 con tributors from 12 countries were listed in the program. The present volume and its companion volume 2 document the proceedings of the above-mentioned Section on Solution Chemistry of Surfactants. In 1976 there was held an international symposium on Micellization, Solubilization and Microemulsions in Albany, l the proceedings of which have been chronicled in two volumes. A great deal of material dealing with micelles contributed by a legion of prominent researchers constitutes these volumes but a few subtopics were not adequately covered; so it was deemed appro priate to cover these topics as well as the recent progress in the general area of aggregation of surfactants in this Section. Also as it is the amphiphilicity or amphipathicity\* of a surfact ant molecule which is responsible for both adsorption at inter faces and aggregation in solution, so it was considered quite apropos to include the topic of adsorption at interfaces in this Section. Concomitantly, the present volumes not only cover the aggregation phenomena but also the adsorption at interfaces. 548 pp. Englisch.
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Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, , GermaniaBuchWeltWeit Ludwig Meier e.K.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The authors of this book have been in charge of over thirty industrial contracts of various length (from six months to three years); the companies involved covered a wide range of industrial activities, including steel making, hot…and cold rolling, aerospace research, automobile manufactur ing, chemical manufacturing, coal mining, bronze casting, and mechanical engineering. All contracts were related to problems connected either with the preliminary design of production systems or with the management of these systems. The problems that the authors investigated involved not only designing and scheduling, but also the modeling, analysis, and evalua tion of production systems. The book is based to a large extent on the experience gained in working on these contracts and the mathematical procedures presented are those that have been applied during the course of work on at least one of the contracts. Moreover, the authors have always kept in mind an idea which seems pivotal in the world of industry: the difficulty in companies lies much more in determining the exact nature of a problem and defining the criteria to be taken into account, than in solving the problem itself. 408 pp. Englisch.
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Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, , GermaniaBuchWeltWeit Ludwig Meier e.K.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -During the last ten years, the diagnostic approach to disorders of bone and mineral metabolism has benefited considerably from the development of radioimmunoassay and competitive protein binding techniques for measurements of circu…lating parathyroid hormone, calcitonin, and biologically active vitamin D me tabolites. Accumulated experiences with radiogrametrical and densinometric methods of quantitating appendicular bone mass now facilitate the detection of changes in bone mineral content heretofore unrecognized by routine roentgenographic vertebral analysis. During this same decade, the diagnosis of metabolic bone disease and the skeletal response to remedial therapeutic ma neuvers have also been facilitated by the routine application of the bone biopsy. Improvements in tinctorial techniques, stan dardization in methodology essential for adequate preparation of thin undecalcified specimens, and the incorporation of tetracy cline bone formation or mineralization 'markers' should now herald the 'routine' use of this diagnostic procedure. Moreover, the compilation and ready availability of reference morphometric data, spanning the prepubescent years charac terized by skeletal growth and remodeling and the later senes cent period during which bone loss normally proceeds in an un- 7 8 FOREWORD relenting fashion, allow adequate differentiation between normal age-sex-related changes in skeletal turnover attendant on skeletal maturation and aging and acquired or inherited de rangements in bone metabolism. 164 pp. Englisch.
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Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, , GermaniaBuchWeltWeit Ludwig Meier e.K.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This volume constitutes the Proceedings of the November 7-9, 1977 Conference on PROCESSING OF CRYSTALLINE CERAMICS, held at North Carolina State University in Raleigh. It was the Fourteenth in a series of 'University Conferences on… Ceramic Science' initiated in 1964 and still coordinated by a founding group of four ceramic related institutions, of which North Carolina State University is a charter member, along with the University of California at Berkeley, Notre Dame University, and the New York State College of Ceramics at Alfred University. In addition, two other ceramic-oriented schools, the University of Florida and Case-Western Reserve University, have also hosted Conferences in the series. These research-oriented conferences, each uniquely concerned with a timely ceramic theme, have been well attended by audiences which typically were both inter national and interdisciplinary in character; their published Proceedings have been well received and are frequently cited. This three day conference was concerned with (a) scientific aspects of all process steps which must be combined and controlled effectively and sequentially in producing crystalline ceramics (both oxides and nonoxides), and (b) utilization of these principles in developing processes for several classes of advanced ceramics critical to present and future technology. 700 pp. Englisch.
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Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, , GermaniaBuchWeltWeit Ludwig Meier e.K.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Turbulence, mixing and the mutual interaction of turbulence and chemistry continue to remain perplexing and impregnable in the fron tiers of fluid mechanics. The past ten years have brought enormous advances in computers and comput…ational techniques on the one hand and in measurements and data processing on the other. The impact of such capabilities has led to a revolution both in the understanding of the structure of turbulence as well as in the predictive methods for application in technology. The early ideas on turbulence being an array of complicated phenomena and having some form of reasonably strong coherent struc ture have become well substantiated in recent experimental work. We are still at the very beginning of understanding all of the aspects of such coherence and of the possibilities of incorporating such structure into the analytical models for even those cases where the thin shear layer approximation may be valid. Nevertheless a distinguished body of 'eddy chasers' has come into existence. The structure of mixing layers which has been studied for some years in terms of correlations and spectral analysis is also getting better understood. Both probability concepts such as intermittency and conditional sampling as well as the concept of large scale structure and the associated strain seem to indicate possibilities of distinguishing and synthesizing 'engulfment' and molecular mixing. 484 pp. Englisch.
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Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, , GermaniaBuchWeltWeit Ludwig Meier e.K.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This volume contains the texts of the nineteen lectures presented at the NATO-ASI - FEBS Course on 'DNA - ligand interactions: from drugs to proteins.' The Advanced Study Institute (ASIl was held from August 30th to September 11th.… 1986 in the Abbey of Fontevraud (France). The ASI was attended by 112 participants from a wide scientific horizon and from twentyone different countries. It was in some way a follow-up of the ASI held in Maratea. Italy in May 1981 and which was published in the NATO ASI Life Science series as volume 45. While much has been learned about the way the cellular machinery maintains and transmits the genetic heritage. as well as how these processes are regulated. little is Known about how the interactions between the various partners involved are taKing place. The interactions of drugs and proteins with nucleic acids are of evident importance in the understanding of these problems. The spectacular advances in recombinant DNA technology and the increased sophistication of biophysical techniques. in particular :-ray diffraction and nuclear magnetic resonance. have created a scientific environment which is highly promising for the future of research in molecular biology. These advances permH the serious hope that biology on the molecular level may become a r-eality. Some of the contributions at the ASI presented the most recent advances in this e:citing field. 304 pp. Englisch.
Lingua: Inglese
Editore: Springer US, Humana Jul 2012 2012
Serie: The Springer International Series in Engineering and Computer Science, Libro 108 di 260. Libro 108 di 260 - The Springer International Series in Engineering and Computer Science
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -1. 1 Power-dissipation trends in CMOS circuits Shrinking device geometry, growing chip area and increased data-processing speed performance are technological trends in the integrated circuit industry to enlarge chip functionality.…Already in 1965 Gordon Moore predicted that the total number of devices on a chip would double every year until the 1970s and every 24 months in the 1980s. This prediction is widely known as 'Moore's Law' and eventually culminated in the Semiconductor Industry Association (SIA) technology road map [1]. The SIA road map has been a guide for the in dustry leading them to continued wafer and die size growth, increased transistor density and operating frequencies, and defect density reduction. To mention a few numbers; the die size increased 7% per year, the smallest feature sizes decreased 30% and the operating frequencies doubled every two years. As a consequence of these trends both the number of transistors and the power dissi pation per unit area increase.In the near future the maximum power dissipation per unit area will be reached. Down-scaling of the supply voltage is not only the most effective way to reduce power dissipation in general it also is a necessary precondition to ensure device reliability by reducing electrical fields and device temperature, to prevent device degradation. A draw-back of this solution is an increased signal propa gation delay, which results in a lower data-processing speed performance. 172 pp. Englisch.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This volume reports investigations which form part of a major series of theoretical and experimental studies being carried out in the Laboratory of Low-Temperature Plasma Optics at the Lebedev Physics Institute in Moscow. The paper…s give the results of systematic investigations of the chemical composition and of the electrical and optical properties of discharge plasmas, and also of populations of laser levels. Reliable and detailed information is given on the dissociation of carbon dioxide gas in discharges; the nature of the velocity distribution function, average energies, and densities of electrons; and populations and vibrational temperatures of molecules in cw CO and CO lasers. The material in this volume is intended for specialists in quantum electronics and low temperature plasma diagnostics. 124 pp. Englisch.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This volume contains the results of many years of investigations of pulse gas-discharge lasers carried out at the Optical Laboratory of the Lebedev Physics Institute in Moscow. The two papers report mainly experimental results obta…ined in studies of pulse lasers utilizing translations in metals (Isaev and Petrash) and electronic transitions in diatomic molecules (Kaslin and Petrash). Population inversion mechanisms and the principal properties of the lasers are considered. v CONTENTS Investigation of Pulse Gas-Discharge Lasers Utilizing Atomic Transitions A. A. Isaev and G. G. Petrash Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1l. Efficiency in a Gas-Discharge Laser. - . - - - . . . . . - - - . . - - . - . . - . - . - . 12. Review of the Literature - - - - - - - . - - - - - - . . - - . . . - - - - . - - - - . - . . . - 4 Chapter I. Kinetics of Output Power Saturation in a Three-Level System. - - - - - - - - 61. Level Populations and Saturated Power in a Three-Level System. - - - - - - - - 72. Absence of Decay of Laser Levels. - - - - - - . - - - - . - . - . - - - - - - - - - - - - - 83. Decay of Laser Levels by Emission of Spontaneous Radiation. - - - - . 200 pp. Englisch.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The impact of computers on all rea1ms of Chemistry has been one of the most important factors in the deve10pment of this science during the last years. In recognition of this fact, in 1971, the 'First International Conference on Co…mputers in Chemi ca1 Research and Education' , was held at DeKa1b, I11inois, USA. A second Conference took p1ace in Ljub1jana, Yugos1avia in 1973 and this third Conference in Caracas, Venezuela, in 1976. The aim of these conferences was to provide a high level forum for the 1eading researchers to exchange information at the frontiers of present day computer app1ications to the different fie1ds of Chemistry. The present 'Third International Conference on Computers in Chemica1 Research, Education and Techno10gy', whose proceedings are pub1ished in the present vo1ume, was conceived, by means of aseries of invited 1ectures, as a survey of the present-date state of the art in some of the most relevant areas of computer app1ications in Chemistry. 492 pp. Englisch.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Mark W. Schwartz Soon after we came into extensive meadows: and I was assured that those meadows continue for a hundred and fifty miles. being in winter drowned lands and marshes. By the dryness of the season they were now beautifu…l pastures, and here presented itself one of the most delightful prospects I have ever beheld; all low grounds being meadow, and without wood, and all of the high grounds being covered with trees and appearing like islands: the whole scene seemed an elysium. Capt. Thomas Morris. 1791 I am sitting in a 60-mile-an-hour bus sailing over a highway originally laid out for horse and buggy. The ribbon of concrete has been widened and widened until the field fences threaten to topple into the road cuts. In the narrow thread of sod between the shaved banks and the toppling fences grow the relics of what once was Illinois: the prairie. 456 pp. Englisch.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -For many years ergonomists and human engineering specialists have made significant contributions to the solution of problems faced in the area of human labour and to the introduction of their research results and field experience i…nto the process of equipment design. However, the rapid increase in complexity of equipment in use as well as in development demonstrates the necessity of broaden ing the point of view continuously. The workshop held in Munich from March 22nd to March 26th, 1982, was an excellent opportunity for the participants to discuss their respective interests and their interpretation of needs for future research. The workshop was sponsored by the Human Factors Special Programme Panel of the Scientific Affairs Division of NATO. This sponsorship, together with the helpful assistance rendered by Drs. Bayraktar, Kroemer, and Sanders, is gratefully acknowledged. This volume contains the papers presented during the workshop. All these papers are directly related to the general aim: the ex change of experience collected in the field of ergonomic data for equipment design on the one hand and the definition of unexplored areas on the other. It is hoped that this presentation will help to define future research methods in the area of ergonomic data and set into motion fruitful discussions on the validity of the data in use today. 296 pp. Englisch.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The contributions to this volume clearly indicate the momentum, quality, liveliness and diversity of the research effort being di rected toward deepening our understanding of tqe alcohol withdrawal syndrome. This area of study has…gained increasing interest and attention to the point where it seemed reasonable to devote a spe cial section to it at the 30th International Congress for Alcoholism and Drug Dependence in Amsterdam in September, 1972. Our goal was to share our most recent findings and stimulate others to join in the effort. With few exceptions, the papers in this publication present new data. It had been hoped that the volume would appear by the end of 1972. However, the eagerness of many of the contributors to extend their investigations made this target date impossible. Several of the papers were not presented in the section but were presented elsewhere in the Congress. However, because of their particular relevance to the topic they have been included with the generous consent of the authors. 440 pp. Englisch.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Recently, there has been a considerable upsurge of interest in heavily doped semiconductors. This interest is due primarily to the expanding range of applications of such. materials. Moreover, the heavy doping of semiconductors pro…duces new effects (the forma tion of impurity aggregates, the appearance of allowed states in the forbidden band, etc J, which are of great interest in solid-state physics. The rapid growth in the number of papers on heavily doped semiconductors makes it difficult to review the results obtained so far. Therefore, many investigations carried out in 1966-7, par ticularly those on AIIIBV semiconductors, are not discussed in the present monograph, which represents the state of the knowledge in 1965. Nevertheless, the author hopes that, in spite of this, the book will be useful. An attempt is made, first, to review investigations of heavily doped semiconductors from a certain viewpoint and, sec ondly, to suggest some ideas (Chap. 5) which may be controversial but which are intended to stimulate further studies of heavily doped semiconductors which can be regarded as a special case of dis ordered systems. The work of American scientists investigating heavily doped semiconductors, in particular the efforts of E. O. Kane, J. 1. Pan kove, R. N. Hall, R. A. Logan, W. G. Spitzer, F. A. Trumbore, and many others, is well known to Soviet investigators. It gives me pleasure to learn that Western readers will now have an - v vi PREFACE portunity to become acquainted with the work done in the USSR. 436 pp. Englisch.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Mankind, throughout history, has strived to improve his food sources. By means of slow and empirical selections, it has been possible to greatly increase both quantity and quality of plant crops. This procedure has brought the most… useful cereals to a state of refinement that seems to be difficult to further improve by the same methodology. Indeed, natural sexual mechanisms were always used to cross closely related sexually and genetically compatible organisms; the selection procedure consisted of isolating the most promi sing progenies. Obviously, by this way, plants could only share preexisting genetic pools. On the other hand, the last decade has seen drastic modifi cations of the experimental plant sciences, with the appearance of new technological possibilities. Because of this profound reshaping of our experimental ap proaches, other means can now be realistically envisaged in order to achieve similar or even higher goals. It is, for instance, possible to attempt completing sexual crosses (where both male and female gametes bring together the genetic informations necessary for growth and development of the offspring) by parasexual means by which novel genetic informa tions could possibly be added to the heritage -. At the limit, such genetic manipulations could enable man to create plants capable of producing new substances characteris tic of unrelated plants or, more generally, of other living or ganisms. Even if these possibilities might appear quite remote, the interest of Scientists has been awaken and, indeed, several at tempts to such genetic manipulations have already been made. 620 pp. Englisch.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book is the proceedings of a Symposium entitled 'The Physics of Solid-Solution Strengthening in Alloys' which was held at McCormick Place, Chicago, on October 2, 1973, in association with a joint meeting of the American Societ…y for Metals (ASM) and The Metallurgical Society (TMS) of the American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME). The symposium, which was initiated and organized by the editors of this volume, was sponsored by the Committee on Alloy Phases, Institute of Metals Division, TMS, AIME, and the Flow and Fracture Section of the Materials Science Division, ASM. The discipline of Alloy Design has been very active in recent years, during which considerable stress has been placed on the roles of crystallography and microstructure in the rationalization and prediction of properties. Underestimated as a component of alloy design, however, has been the importance of physical property studies, even though physical property measurements have tradi tionally been employed to augment direct or x-ray observations in the determination of phase equilibrium (and, indeed, metastable equilibrium) boundaries. 320 pp. Englisch.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The Conference on Nuclear Masses and their Determination which was held at the Max Planck I nstitute in Mainz from 10 to 12 July 1956 resulted in the formation by the International Union of Pure and Applied Physics of a Commission…on Atomic Masses and Related Constants. Under the auspices of this Commission conferences covering these subjects were held in Hamilton, Ontario (12-16 September, 1960), in Vienna (15-19 July 1963) and in Winnipeg (28 August-1 September 1967). After the last of these conferences the Commission felt that the position regarding nuclear masses was reasonably good and that as a consequence the fundamental constants should get more emphasis in future conferences. For this reason they were very pleased to accept an offer from the National Physical Laboratory to accept the main burden of organizing the Fourth International Conference on Atomic Masses and Fundamental Constants. An Organizing Committee was appointed with the members: J. H. Sanders, Chairman B. W. Petley, Secretary A. Horsfield, Treasurer P. Dean A. H. Wapstra. They were assisted by a Program Committee consisting of: A. H. Wapstra, Chairman E. R. Cohen A. Horsfield W. H. Johnson, Jr. J. H. Sanders J. Terrien. 592 pp. Englisch.
