Springer jul 1995 (10 Ergebnisse)
Sprache: Englisch
Verlag: Springer Nature B.V. Jul 1995, 1995
Serie: Buch 110 von 260 - The Springer International Series in Engineering and Computer Science
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Buch. Zustand: Neu. Neuware - Program understanding plays an important role in nearly all software related tasks. It is vital to the development, maintenance and reuse activities. Program understanding is indispensable for improving the quality of software development. Several development activities such as code reviews, debuggi…ng and some testing approaches require programmers to read and understand programs. Maintenance activities cannot be performed without a deep and correct understanding of the component to be maintained. Program understanding is vital to the reuse of code components because they cannot be utilized without a clear understanding of what they do. If a candidate reusable component needs to be modified, an understanding how it is designed is also required. of This monograph presents a knowledge-based approach to the automation of program understanding. This approach generates rigorous program documentation mechanically by combining and building on strengths of a practical program decomposition method, the axiomatic correctness notation, and the knowledge based analysis approaches. More specifically, this approach documents programs by generating first order predicate logic annotations of their loops. In this approach, loops are classified according to their complexity levels. Based on this taxonomy, variations on the basic analysis approach that best fit each of the different classes are described. In general, mechanical annotation of loops is performed by first decomposing them using data flow analysis. This decomposition encapsulates interdependent statements in events, which can be analyzed individually.
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Buch. Zustand: Neu. Neuware - Embodiment, Morality and Medicine deals with the relevance of `embodiment' to bioethics, considering both the historical development and contemporary perspectives on the mind--body relation. The emphasis of all authors is on the importance of the body in defining personal identity as well as on the…role of social context in shaping experience of the body. Among the perspectives considered are Christian, Jewish, Islamic, Buddhist, and African-American. Feminist concerns are important throughout.
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Buch. Zustand: Neu. Neuware - Agroforestry research is central to developing methods for the sustainable use of natural renewable resources, evolving to address the needs of the coming century. It is now necessary to consolidate the scientific gains now being made in process-oriented research and to develop a policy framework to… encourage the adoption of sustainable land use practices. Agroforestry plays an important role in conserving forest resources, reducing the need for deforestation. Further, if `forest' is broadly defined as tree cover, agroforestry will also increase the proportion of woody biomass in farming landscapes. The papers selected for inclusion in Agroforestry: Science, Policy, and Practice establish agroforestry as an interdisciplinary science focused on the practical imperative of assisting farmers, forest dwellers and landscape-level planners to achieve sustainable food, fuel and timber production into the 21st century.
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Buch. Zustand: Neu. Neuware - This volume includes papers presented at the Third Annual Computation and Neural Systems meeting (CNS\*94) held in Monterey California, July 21 - July 26, 1994. This collection includes 71 of the more than 100 papers presented at this year's meeting. Acceptance for meeting presentation was based on…the peer review of preliminary papers by at least two referees. The papers in this volume were submitted in final form after the meeting. As represented by this volume, CNS meetings continue to expand in quality, size and breadth of focus as increasing numbers of neuroscientists are taking a computational approach to understanding nervous system function. The CNS meetings are intended to showcase the best of current research in computational neuroscience. As such the meeting is fundamentally focused on understanding the relationship between the structure of neIVOUS systems and their function. What is clear from the continued expansion of the CNS meetings is that computational approaches are increasingly being applied at all levels of neurobiological analysis. in an ever growing number of experimental preparations. and neural subsystems. Thus. experimental subjects range from crickets to primates; sensory systems range from vision to electroreception; experimental approaches range from realistic models of ion channels to the analysis of the information content of spike trains. For this reason, the eNS meetings represent an opportunity for computational neurobiologists to consider their research results in a much broader context than is usually possible.
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Buch. Zustand: Neu. Neuware - Towards Balanced Automation The concept. Manufacturing industries worldwide are facing tough challenges as a consequence of the globalization of economy and the openness of the markets. Progress of the economic blocks such as the European Union, NAFTA, and MERCOSUR, and the global agreements such as… GATT, in addition to their obvious economic and social consequences, provoke strong paradigm shifts in the way that the manufacturing systems are conceived and operate. To increase profitability and reduce the manufacturing costs, there is a recent tendency towards establishing partnership links among the involved industries, usually between big industries and the networks of components' suppliers. To benefit from the advances in technology, similar agreements are being established between industries and universities and research institutes. Such an open tete-cooperation network may be identified as an extended enterprise or a virtual enterprise. In fact, the manufacturing process is no more carried out by a single enterprise, rather each enterprise is just a node that adds some value (a step in the manufacturing chain) to the cooperation network of enterprises. The new trends create new scenarios and technological challenges, especially to the Small and Medium size Enterprises (SMEs) that clearly comprise the overwhelming majority of manufacturing enterprises worldwide. Under the classical scenarios, these SMEs would have had big difficulties to access or benefit from the state of the art technology, due to their limited human, financial, and material resources.
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Buch. Zustand: Neu. Neuware - We are at the midpoint in the 'Decade of the Brain'. Why do we know so much and yet understand so little about the brain The field of neuroscience has exploded, and anyone who attends one of the large meetings has the impression of drinking from a fire hydran- as so aptly put by the late neuroanatom…ist Walle J. H. Nauta. Part of that feeling is a general-information problem, experienced in other fields of scienc as well. In brain research, however, the problem is accentuated by the rapid advances of molecular and cellular brain research. The dynamics created by these lines of research have multiplied published output, but have inevitably entailed a compartmentalization of scientific interests and research strategies. If the cost of gaining knowledge is a shrinking horizon of the individual scientist, neuroscience must develop strategies for organizing the acquisition of knowledge. Some of this guidance is given by the society -by medical and, perhaps, commercial needs. But who provides the backbone for establishing a generally accepted 'schema' for basic brain research -a frame of reference onto which the millions of information fragments can be fitted, in a way acceptable to a multicultural and polymethodical neuroscience community We believe that developmental and evolutionary biology has the potential to provide a commonly accepted frame of reference for that multilevel system approach needed to understand the workings of the brain.
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Buch. Zustand: Neu. Neuware - The operation of semiconductor devices depends upon the use of electrical potential barriers (such as gate depletion) in controlling the carrier densities (electrons and holes) and their transport. Although a successful device design is quite complicated and involves many aspects, the device enginee…ring is mostly to devise a 'best' device design by defIning optimal device structures and manipulating impurity profIles to obtain optimal control of the carrier flow through the device. This becomes increasingly diffIcult as the device scale becomes smaller and smaller. Since the introduction of integrated circuits, the number of individual transistors on a single chip has doubled approximately every three years. As the number of devices has grown, the critical dimension of the smallest feature, such as a gate length (which is related to the transport length defIning the channel), has consequently declined. The reduction of this design rule proceeds approximately by a factor of 1. 4 each generation, which means we will be using 0. 1-0. 15 ). lm rules for the 4 Gb chips a decade from now. If we continue this extrapolation, current technology will require 30 nm design rules, and a cell 3 2 size 10 nm , for a 1Tb memory chip by the year 2020. New problems keep hindering the high-performance requirement. Well-known, but older, problems include hot carrier effects, short-channel effects, etc. A potential problem, which illustrates the need for quantum transport, is caused by impurity fluctuations.
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Buch. Zustand: Neu. Neuware - It has been established that neuroglia are involved in early neu ronal growth, differentiation, and migration; these issues are well discussed in the companion volume entitled Neuron-Glia Interrela tions During Phylogeny: I. Phylogeny and Ontogeny of Glial Cells. The present volume, Neuron-Glia Inte…rrelations During Phylogeny: II. Plas ticity and Regeneration, focuses on two aspects: (1) neuron-glia inter relations as they relate to the physiological and metabolic homeostasis of neurons; and (2) the role of neuroglia and neuronal plasticity in regeneration and aging. Neuron-Glia Interrelations During Phylogeny: II. Plasticity and Regeneration begins with the unique presentation, 'Neuron-Glia In teractions in the Human Fetal Brain,' by Sogos et al. The interesting issue discussed in this chapter is the immunocompetence of the CNS, a field that is now rising. The chapter by Oland et al. , 'Glial Cells Playa Key Role in the Construction of Insect Olfactory Glomeruli,' discusses a unique role of glial cells as intermediates in afferent axon induction of substructure with the CNS. The chapter by Vanhems, 'Insect Glial Cells and Their Relationships with Neurons,' compliments the information presented in the companion volume by Fredieu and Mahowald and, in this volume, the chapter by Tobert and Oland. The chapter by Tsacopoulos and Poitry, 'Metabolite Exchanges and Signal Trafficking Between Glial Cells and Neurons in the Insect Retina,' provides evidence of the nutritive functions of glial cells and the important role of alanine supplied by glial cells to photoreceptors, a clear neuron-glia interaction.
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Buch. Zustand: Neu. Neuware - 355 articles arranged under the following sections: B and T Cells of the Mucosal Immune System: Trafficking and Cytokine Regulation. Nonlymphoid Cells of the Mucosal Immune System: Epithelial Cells, APC, and Other Cell Types. Development of Mucosal Immunity: Reproductive Tract, Ontogeny, Phylogeny,…and Immunodeficiency. Gnotobiology, Environmental, Nutritional, and Intrinsic Factors in Mucosal Immunology. Structure, Proteolysis, and Function of Mucosal Immunoglobulins: Cellular Receptors. Clinical Immunology, Immunopathology, Immunodeficiency, and Allergology. Microbial, Parasite, and HIV Mucosal Infections. Immunology of the Liver. Oral Immunology and Immunopathology. Autoimmunity, Oral Tolerance, and Aging. Chronic Inflammation, Inflammatory Bowel Diseases and Celiac Disease. Induction of Mucosal Immune Responses and Vaccine Delivery Systems. Index.
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Taschenbuch. Zustand: Neu. Neuware - This ENCYCLOPAEDIA OF MATHEMATICS aims to be a reference work for all parts of mathe matics. It is a translation with updates and editorial comments of the Soviet Mathematical Encyclopaedia published by 'Soviet Encyclopaedia Publishing House' in five volumes in 1977-1985. The annotated transl…ation consists of ten volumes including a special index volume. There are three kinds of articles in this ENCYCLOPAEDIA. First of all there are survey-type articles dealing with the various main directions in mathematics (where a rather fine subdivi sion has been used). The main requirement for these articles has been that they should give a reasonably complete up-to-date account of the current state of affairs in these areas and that they should be maximally accessible. On the whole, these articles should be understandable to mathematics students in their first specialization years, to graduates from other mathematical areas and, depending on the specific subject, to specialists in other domains of science, en gineers and teachers of mathematics. These articles treat their material at a fairly general level and aim to give an idea of the kind of problems, techniques and concepts involved in the area in question. They also contain background and motivation rather than precise statements of precise theorems with detailed definitions and technical details on how to carry out proofs and constructions. The second kind of article, of medium length, contains more detailed concrete problems, results and techniques.
