Springer sep 1991 (12 Ergebnisse)

Taschenbuch. Zustand: Neu. Neuware - This book outlines a practice model which gives expression to the social work perspective on human problems. It shows what practical steps social workers can take to involve their clients in the struggle for social change. It is an approach which looks first to small, tangible gains that can lay the foundation for an expanded change agenda as clients gain in confidence and experience.…

Buch. Zustand: Neu. Neuware - Relativistic Effects on Periodic Trends.- Atoms.- Relativistic Atomic Structure and Electron-Atom Collisions.- On the Accuracy of Oscillator Strengths.- Atomic Structure Calculations in Breit-Pauli Approximation.- Relativistic Calculations of Parity Non-Conserving Effects in Atoms.- High Precision Relativistic Atomic Structure Calculations Using the Finite Basis Set Approximation.- Relativistic Calculations of Electron Impact Ionisation Cross-Sections of Highly Charged Ions.- Molecules.- Nonsingular Relativistic Perturbation Theory and Relativistic Changes of Molecular Structure.- Basis Set Expansion Dirac-Fock SCF Calculations and MBPT Refinement.- Comments.- Polyatomic Molecular Dirac-Hartree-Fock Calculations with Gaussian Basis Sets.- Open Shell Relativistic Molecular Dirac-Hartree-Fock SCF-Program.- General Contraction in Four-Component Relativistic Hartree-Fock Calculations.- Accurate Relativistic Dirac-Fock and MBPT Calculations on Argon with Basis Sets of Contracted Gaussian Functions.- Comments.- Relativistic Many-Body Perturbation Theory of Atomic and Molecular Electronic Structure.- Solid State.- Relativistic Density-Functional Theory for Electrons in Solids.- Influence of Relativistic Effects on the Magnetic Moments and Hyperfine Fields of 5d-Impurity Atoms Dissolved in Ferromagnetic Fe.- Relativistic Spin-Polarized Density-Functional Theory: Simplified Method for Fully Relativistic Calculations.- Theory of Magnetocrystalline Anisotropy.- The Spin Polarized Photoemission from Non-Magnetic Metals.- Theory of Magnetic X-Ray Dichroism.- Participants.…

Buch. Zustand: Neu. Neuware - The development of any Software (Industrial) Intensive System, e.g. critical embedded software, requires both different notations, and a strong devel- ment process. Different notations are mandatory because different aspects of the Software System have to be tackled. A strong development process is mandatory as well because without a strong organization we cannot warrantee the system will meet its requirements. Unfortunately, much more is needed! The different notations that can be used must all possess at least one property: formality. The development process must also have important properties: a exha- tive coverage of the development phases, and a set of well integrated support tools. In Computer Science it is now widely accepted that only formal notations can guarantee a perfect de ned meaning. This becomes a more and more important issue since software systems tend to be distributed in large systems (for instance in safe public transportation systems), and in small ones (for instance numerous processors in luxury cars). Distribution increases the complexity of embedded software while safety criteria get harder to be met. On the other hand, during the past decade Software Engineering techniques have been improved a lot, and are now currently used to conduct systematic and rigorous development of large software systems. UML has become the de facto standard notation for documenting Software Engineering projects. UML is supported by many CASE tools that offer graphical means for the UML notation.…

Buch. Zustand: Neu. Neuware - AMERICAN SIGN LANGUAGE American Sign Language (ASL) is the visual-gestural language used by most of the deaf community in the United States and parts of Canada. On the surface, this language (as all signed languages) seems radically different from the spoken languages which have been used to formulate theories of linguistic princi ples and parameters. However, the position taken in this book is that when the surface effects of modality are stripped away, ASL will be seen to follow many of the patterns proposed as universals for human language. If these theoretical constructs are meant to hold for language in general, then they should hold for natural human language in any modality; and ifASL is such a natural human language, then it too must be accounted for by any adequate theory of Universal Grammar. For this rea son, the study of ASL can be vital for proposed theories of Universal Grammar. Recent work in several theoretical frameworks of syntax as well as phonology have argued that indeed, ASL is such a lan guage. I will assume then, that principles of Universal Gram mar, and principles that derive from it, are applicable to ASL, and in fact that ASL can serve as one of the languages which test Universal Grammar. There is an important distinction to be drawn, however, be tween what is called here 'American Sign Language', and other forms of manual communication.…

Buch. Zustand: Neu. Neuware - 1. Platelet activation and aggregation: rationale for combining antithrombotic drugs.- 2. Role of nitric oxide in endothelial cell - platelet interactions.- 3. Platelets and megakaryocytes in vascular disease.- 4. Thrombosis in relation to atherosclerosis.- 5. Pharmacological inhibition of the ADP-GP IIb/IIIa-fibrinogen pathway of platelet aggregation.- 6. Calcium fluxes in platelets and endothelial cells, mechanisms and functional significance.- 7. Inhibition of platelet function by cyclic nucleotides and cyclic nucleotide-dependent protein kinases.- 8. Pharmacological modification of platelet-derived cyclooxygenase product formation and its consequences for platelet-vessel wall interactions.- 9. Antithrombotics and the lipoxygenase pathway.- 10. Pathological expressions of platelet-vessel wall interactions: implications of serotonin.- 11. The involvement of PAF in thrombotic events.- 12. Prostaglandins and -analogs in the treatment of platelet-vessel wall interaction.- 13. Adjuvant agents to enhance and sustain reperfusion with t-PA: studies in experimental dog models.- 14. Effect of dietary marine lipids on (anti-)thrombotic mechanisms. …

Buch. Zustand: Neu. Neuware - Biota of the St. Marys River: habitat evaluation and environmental assessment.- Polycyclic aromatic hydrocarbons in surficial sediments and caged mussels of the St. Marys River, 1985.- Effects of pollution on benthic invertebrate communities of the St. Marys River, 1985.- Use of a geographic information system data base to measure and evaluate wetland changes in the St. Marys River, Michigan.- Limnological aspects of the St. Clair River.- Distribution and abundance of young fish in the St. Clair River and associated waters, Ontario.- Distribution and abundance of young fish in Chenal Ecarte and Chematogen Channel in the St. Clair River delta, Ontario.- Environmental quality assessment of the St. Clair River as reflected by the distribution of benthic macroinvertebrates in 1985.- Growth and overwinter survival of the Asiatic clam, Corbicula fluminea, in the St. Clair River, Michigan.- Deformities in larval Procladius spp. and dominant Chironomini from the St. Clair River.- Biota of Lake St. Clair: habitat evaluation and environmental assessment.- The plankton ecology of Lake St. Clair, 1984.- Plankton community structure in Lake St. Clair, 1984.- Phosphorus cycling by mussels (Unionidae: Bivalvia) in Lake St. Clair.- Biology of the exotic zebra mussel, Dreissena polymorpha, in relation to native bivalves and its potential impact in Lake St. Clair.- The Detroit River: effects of contaminants and human activities on aquatic plants and animals and their habitats.- Response of bacteria and phytoplankton to contaminated sediments from Trenton Channel, Detroit River.- Tumors in fish from the Detroit River.- Heavy metal contamination of sediments in the Upper Connecting Channels of the Great Lakes.- Application of a microcomputer-based algal fluorescence technique for assessing toxicity: Lake St. Clair and St. Clair River examples.- A method for evaluating the impact of navigationally induced suspended sediments from the Upper Great Lakes Connecting Channels on the primary productivity.- Heavy metals in aquatic macrophytes drifting in a large river.- Distribution of Hexagenia nymphs and visible oil in sediments of the Upper Great Lakes Connecting Channels.- Production of Hexagenia limbata nymphs in contaminated sediments in the Upper Great Lakes Connecting Channels. …

Buch. Zustand: Neu. Neuware - Rudolf Carnap was born on May 18, 1891, and Hans Reichenbach on September 26 in the same year. They are two of the greatest philosophers of this century, and they are eminent representatives of what is perhaps the most powerful contemporary philosophical movement. Moreover, they founded the journal Erkenntnis. This is ample reason for presenting, on behalf of Erkenntnis, a collection of essays in honor of them and their philosophical work. I am less sure, however, whether it is a good time for resuming their philosophical impact; their work still is rather part than historical basis of the present philosophical melting-pot. Their basic philosophical theses have currently, it may seem, not so high a standing, but their impact can be seen in numerous detailed issues; they have opened or pushed forward lively fields of research which are still very actively pursued not only within philosophy, but also in many neighboring disciplines. Whatever the present balance of opinions about their philosophical ideas, there is something even more basic in their philosophy than their tenets which is as fresh, as stimulating, as exemplary as ever. I have in mind their way of philosophizing, their conception of how to do philosophy. It is always a good time for reinforcing that conception; and if this volume would manage to do so, it would fully serve its purpose. …

Buch. Zustand: Neu. Neuware - The second of the 1989 conferences in the Shell Conference Series, held from 10 to 12 December in the Netherlands and organized by Koninklijke/Shell-Laboratorium, Amsterdam, was on 'Computational Fluid Dynamics for Petrochemical Process Equip ment'. The objective was to generate a shared perspective on the subject with respect to its role in the design of equipment involving complex flows. The conference was attended by scientists from four Shell laboratories and experts from universities in the USA, France, Great Britain, Germany and The Netherlands. R. V. A. Oliemans, G. Ooms and T. M. M. Verheggen formed the organizing committee. Complexities in fluid flow may arise from equipment geometry and/or the fluids themselves, which can be mUlti-component, single-phase or multiphase. Pressure and temperature gradients and any reactivity of components in the flow stream can be additional factors. Four themes were addressed: turbulent reacting and non-reacting flow, dispersed multiphase flow, separated two-phase flow and fluid flow simulation tools. The capabilities and limitations of a sequence of turbulence flow models, from the relatively simple k- Pds. model to direct numerical simulation and large eddy turbulence flow models, were considered for a range of petrochemical process equipment. Flow stability aspects and the potential of cellular automata for the simulation of industrial flows also received attention. The papers published in this special issue of Applied Scientific Research provide a fair representation of the Computational Fluid Dynamics topics discussed in the context of their application to petrochemical process equipment.…

Buch. Zustand: Neu. Neuware - The importance of drug resistance in cancer chemotherapy cannot be over stated. The 500,000 patients who die every year from cancer in the United States have, in most cases, been treated with chemotherapy. Many of these patients responded initially to chemotherapy, but death resulted from the development of drug-resistant tumors. In the first volume in the series. Drug Resistance in Chemotherapy the results of comprehensive laboratory studies aimed at understanding the mechanisms for resistance to individual agents and to the development of broad cross-resistance were described. In the past 2 years there has been substantial progress in understanding the molecular biology associated with these mechanisms of drug resistance. For the first time we are starting to understand which mechanisms are playing an im portant role in human tumors, and even more importantly, clinical trials have recently been initiated in an effort to reverse specific forms of drug resistance. The purpose of this volume is to describe the new advances, both at the molecular level and in the clinic regarding mechanisms of drug resistance and potential ways this resistance can be circumvented. This volume is focused upon mechanisms of resistance associated with two major classes of anticancer drugs: alkylating agents (including cisplatin) and the natural products (e. g. , adriamycin and vinblastine). The first section of the book describes new insights into the genetic mechanisms associated with drug resistance.…

Buch. Zustand: Neu. Neuware - analyzing the experimental data and constructing math.ematical models of the processes under study, one has to rely rather on the physical intuition than on the strict calculations. Now let us go one step higher and explain the main title of the book. The concepts of 'laminary' and 'turbulent' motions were first introduced in hydrodynamics. Since the old days these concepts have considerably broadened; now the laminar and the turbulent motions have been discovered and investigated at all levels of description of nonequilibrium processes in the open systems, from kinetics to reaction diffusion. In any case, one of the principal characteristics of the turbulent motion is the existence of a large number of well-developed macroscopic degrees of freedom. For this reason the turbulent motion is extremely complicated and to a large extent unpredictable. As the laminar and the turbulent flows play an important role in the processes of evolution in the open systems, and in particular, in the processes of self-organization, the need arises for assessing the relative degree of order of laminar and turbulent motions, and also for comparing the degree of order of various turbulent motions. Without being able to make such estimates it will be impossible to determine whether the evolution is going towards higher or towards lower organization when one turbulent state is replaced by another.…

Buch. Zustand: Neu. Neuware - Emile Meyerson's writings on the philosophy of science are a rich source of ideas and information concerning many philosophical and historical aspects of the development of modem science. Meyerson's works are not widely read or cited today by philosophers or even philosophers of science, in part because they have long been out of print and are often not available even in research libraries. There are additional chevaux de !rise for all but the hardiest scholars: Meyerson's books are written in French (and do not all exist in English versions) and deal with the subject matter of science - ideas or concepts, laws or principles, theories - and epis temological questions rather than today's more fashionable topics of the social matrix and external influences on science with the concomitant neglect of the intellectual content of science. Born in Lublin, Poland, in 1859, Meyerson received most of his education in Germany, where he studied from the age of 12 to 23, preparing himself for a career in chemistry. ! He moved to Paris in 1882, where he began a career as an industrial chemist. Changing his profession, he then worked for a time as the foreign news editor of the HAVAS News Agency in Paris. In 1898 he joined the agency established by Edmond Rothschild that had as its purpose the settling of Jews in Palestine and became the Director of the Jewish Colonization Association for Europe and Asia Minor. These activities represent Meyerson's formal career.…

Taschenbuch. Zustand: Neu. Neuware - This volume is the 3rd in a series of comprehensive publications devoted to the molecular spectra and environmentally important properties of polycyclic aromatic compounds which constitute one of the most interesting classes of environmental carcinogens. Since the first identification of dibenz(a,h)anthracene and later benzo(a)pyrene as chemical carcinogens in the 1930's, the number of publications devoted to this ubiquitously occurring group of compounds has increased constantly. Therefore, this reference source for the spectral, physicochemical and en vironmentaJ properties of polycyclic aromatic compounds should be a welcome addition to the previous volumes for scientists engaged in the investigation, characterisation and control of this hazardous class of pollutants. As was the case with the preceding volume, this publication is the fruit of a close collaboration within the General Directorate for SCience, Research and Development of the Commission of the European Communities between the Environment Institute of the Joint Research Centre Ispra, the Community Bureau of Reference and expert laboratories in the member states. F. Geiss Director of the Environment Institute JRC Ispra 1. Introduction Polycyclic Aromatic Compounds (PAC) are an important class of carcinogenic environmental pollutants, which occur in air, water, soils, sediments, in food and in the work area. Because many hundreds of closely related isomers are being formed and released in the environment from combustion processes of fossil fuels and other organic materials, their environmental and health con trol presents a difficult task.…