Springer springer okt 1991 (321 risultati)
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Buch. Condizione: Neu. Neuware - 1 Introduction.- 2 A simple factorial grazing experiment measured on 27 occasions.- 3 A 3 × 3 factorial with quantitative levels.- 4 Definable within-individual comparisons.- 5 Covariance.- 6 Pre-treatment observations in the design of experiments.- 7 Weighted regression, goodness-of-fit and rela…ted topics.- 8 Environmental variables.- 9 Correlation between series of random variables.- 10 Response (reaction) times.- Bibliographical note.
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Buch. Condizione: Neu. Neuware - 1. What is eutrophication .- 1.1 Introduction.- 1.2 Definition and origin of the term eutrophication.- 1.3 Links between eutrophication, biological changes and productivity in lakes.- 1.4 Eutrophication as a natural part of lake succession.- 1.5 Extent of artificial eutrophication.- 1.6 Eutrophic…ation in rivers, estuaries and coastal waters.- 1.7 Measurement of eutrophication.- 2. The nutrients causing eutrophication, and their sources.- 2.1 The requirements of living cells for survival and growth.- 2.2 The important limiting nutrients.- 2.3 The supply of nitrogen and phosphorus to lakes.- 2.4 Relative importance of diffuse and point sources in catchments.- 2.5 Global aspects of nutrient runoff.- 2.6 Methods for estimating the magnitude of nutrient losses from catchments.- 3. The biochemical manifestations of eutrophication.- 3.1 The components of nutrient cycles in aquatic systems.- 3.2 The ultimate sinks of inflowing nitrogen and phosphorus.- 3.3 Changes in the cycles which occur as a consequence of enhanced nutrient inputs.- 3.4 The importance of the littoral zone in nutrient cycles.- 3.5 Seasonal patterns of nitrogen and phosphorus cycles in lakes.- 3.6 Important features of nutrient transformations in rivers and estuaries.- 4. The biological effects of eutrophication.- 4.1 Introduction.- 4.2 Production and species changes of algae and rnacrophytes.- 4.3 Effects of eutrophication upon rnacrophytes and attached algae.- 4.4 Production and species changes in zooplankton.- 4.5 Production and species changes of zoobenthos.- 4.6 Effects of eutrophication on fish and other vertebrates.- 4.7 Aquatic food-web considerations.- 4.8 Wider implications for wildlife and conservation.- 5. The engineering, economic and social effects of eutrophication.- 5.1 Introduction.- 5.2 Water supply.- 5.3 Fisheries management.- 5.4 Land drainage and weed control in rivers.- 5.5 Wildlife conservation.- 5.6 Public health hazards and nuisances.- 5.7 Other recreational aspects.- 6. Prediction and modelling of the causes and effects of eutrophication.- 6.1 Introduction.- 6.2 Experimental approaches to measures of eutrophication effects.- 6.3 The application of models in eutrophication assessment and prediction.- 6.4 Caution in the use of regression equations.- 6.5 Lake classification based on correlations and large data sets.- 6.6 Other lake classification indices.- 6.7 Dynamic models of lake ecosystems.- 6.8 Prediction without models.- 7. The reduction of causes and the management of effects of eutrophication.- 7.1 Introduction.- 7.2 Reduction of nutrient inputs to lakes.- 7.3 Evaluation of nutrient control measures.- 7.4 Control of nutrient concentrations within lakes.- 7.5 Management of lakes without nutrient reduction.- 8. A case study in restoration: shallow eutrophic lakes in the Norfolk Broads.- 8.1 Introduction.- 8.2 Historical perspective.- 8.3 Eutrophication of the Broads.- 8.4 Mechanisms of change.- 8.5 Effects of change.- 8.6 Restoration of Broadland.- 8.7 Lake sediment as a source of phosphorus.- 8.8 Changes in the storage of phosphorus in lake sediment following phosphorus control.- 8.9 Biological response to reduced nutrient loading.- 8.10 Nutrient reduction by isolation.- 8.11 Sediment removal and lake isolation.- 8.12 Biomanipulation as a restoration technique.- 8.13 The restoration of Broadland in the context of two stable communities.- References.
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Taschenbuch. Condizione: Neu. Neuware - 1 Origins and development.- 1.1. Introduction.- 1.2 The ICP-MS system.- 2 Instrumentation for ICP-MS.- 2.1 The inductively coupled plasma.- 2.1.1 Torch and plasma.- 2.1.2 RF coupling.- 2.1.3 Sample introduction.- 2.1.4 Sample history.- 2.1.5 Plasma populations.- 2.1.6 Distribution of ions…in the plasma.- 2.1.7 Other plasmas.- 2.2 Ion extraction.- 2.2.1 Boundary layer and sheath.- 2.2.2 Plasma potential and secondary discharge.- 2.2.3 Supersonic jet.- 2.2.4 Gas dynamics.- 2.2.5 Ion kinetic energies.- 2.3 Ion focusing.- 2.3.1 Operation of ion lenses.- 2.3.2 Ion lenses in ICP-MS.- 2.3.3 Space charge effects.- 2.4 Quadrupole mass spectrometers.- 2.4.1 Quadrupole configuration.- 2.4.2 Ion trajectories and stability diagrams.- 2.4.3 Characteristics of mass spectra from quadrupoles.- 2.4.4 RF-only quadrupoles.- 2.4.5 Scanning and data acquisition.- 2.5 Other mass spectrometers.- 2.6 Ion detection.- 2.6.1 Channeltron electron multipliers.- 2.6.2 Signal measurement by pulse counting.- 2.6.3 Other detectors.- 2.7 Vacuum considerations.- 2.7.1 Properties and flow of gases.- 2.7.2 A vacuum system for ICP-MS.- 2.7.3 Pumps used in ICP-MS.- 3 Instrument options.- 3.1 Introduction.- 3.2 Nebulisers.- 3.2.1 Introduction.- 3.2.2 Concentric nebulisers.- 3.2.3 Cross-flow nebulisers.- 3.2.4 Babington type nebuliser.- 3.2.5 Frit type nebuliser.- 3.2.6 Ultrasonic nebuliser.- 3.3 Spray chambers.- 3.3.1 Principles.- 3.3.2 Operation.- 3.3.3 Thermally stabilised spray chambers for ICP-MS.- 3.4 Torches.- 3.4.1 Construction.- 3.4.2 Demountable torches.- 3.4.3 Alignment.- 3.4.4 Specialised torches.- 3.5 Interface.- 3.5.1 Introduction.- 3.5.2 Sampling cones.- 3.5.3 Skimmer cones.- 4 Sample introduction for liquids and gases.- 4.1 Introduction.- 4.2 Electrothermal vaporisation.- 4.2.1 Principles.- 4.2.2 Instrumentation.- 4.2.3 Operating parameters.- 4.2.4 Applications and analytical performance of ETV-ICP-MS.- 4.3 Vapour generation and gas phase sample introduction.- 4.3.1 Introduction.- 4.3.2 Hydride generation.- 4.3.3 Osmium tetroxide vapour generation.- 4.3.4 Reactive gases.- 4.4 Liquid chromatography.- 4.4.1 Introduction.- 4.4.2 Principles.- 4.4.3 Instrumentation, reagents and operating parameters.- 4.4.4 Applications.- 4.5 Flow injection.- 4.5.1 Introduction.- 4.5.2 Apparatus.- 4.5.3 Sample introduction.- 4.5.4 Operating parameters.- 4.5.5 Applications.- 4.6 Direct sample insertion.- 4.6.1 Principles.- 4.6.2 Applications.- 5 Interferences.- 5.1 Introduction.- 5.2 Spectroscopic interferences.- 5.2.1 Isobaric overlap.- 5.2.2 Polyatomic ions.- 5.2.3 Refractory oxides.- 5.2.4 Doubly charged ions.- 5.2.5 Alleviation of spectroscopic interferences.- 5.3 Non-spectroscopic interferences.- 5.3.1 High dissolved solids.- 5.3.2 Suppression and enhancement effects.- 6 Calibration and data handling.- 6.1 Introduction.- 6.2 General concepts.- 6.2.1 Mass scale calibration.- 6.2.2 Accuracy, precision and reproducibility.- 6.3 Instrumental modes of data collection.- 6.3.1 Peak hopping.- 6.3.2 Scanning.- 6.4 Linearity of response.- 6.5 Blanks.- 6.6 Factors affecting signal stability.- 6.7 Qualitative analysis.- 6.8 Semi-quantitative calibration.- 6.9 Quantitative analysis.- 6.9.1 External calibration techniques.- 6.9.2 Raw data correction procedures.- 6.9.3 Standard additions.- 6.9.4 Isotope dilution.- 7 Sample preparation for ICP-MS.- 7.1 Introduction.- 7.2 General considerations.- 7.2.1 Laboratory equipment and practices.- 7.2.2 Choice of mineral acids.- 7.2.3 Limits of quantitative analysis.- 7.2.4 Precision and accuracy: assessing a digestion procedure.- 7.3 Digestion procedures.- 7.3.1 Open vessel digestions.- 7.3.2 Closed vessel digestions.- 7.3.3 Alkali fusions.- 7.3.4 Microwave digestion.- 7.4 Separation and pre-concentration methods.- 7.4.1 Rare earth elements.- 7.4.2 Precious metals.- 7.4.3 Petrogenic disciminators: Hf, Nb, Ta, Zr.- 7.5 Conclusions and overview.- 8 Elemental analysis of solutions and applications.- 8.1 Introduction.- 8.2 Multi-element determin.
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Buch. Condizione: Neu. Neuware - 1 Nature of Surfactants.- 1.1 Introduction to surfactants.- 1.2 Natural surfactants.- 1.3 Synthetic surfactants.- 1.4 Types of surfactant.- 1.4.1 Hydrophilic groups.- 1.4.2 Hydrophobic groups.- 1.5 Surface activity.- 1.5.1 Self-association.- 1.5.2 The hydrophobic effect.- References.- 2 Adsorptio…n at liquid interfaces.- 2.1 Introduction.- 2.2 Direct measurement of amount adsorbed.- 2.3 Adsorption studied via surface and interfacial tension measurement.- 2.4 Adsorption of ionic surfactants.- 2.4.1 No added electrolyte.- 2.4.2 Ionic surfactant with excess electrolyte.- 2.5 Equations of state for adsorbed surfactants.- 2.6 Adsorption at the liquid/liquid interface.- 2.7 Ultra-low interfacial tensions.- 2.7.1 Prediction of emulsion type from packing geometry.- 2.7.2 Phase inversion.- 2.7.3 Tensions at curved and planar interfaces.- 2.7.4 Interactions between adsorbed monolayers.- 2.7.5 Practical applications of ultra-low tension systems.- 2.8 Physical properties of adsorbed monolayers.- 2.9 Dynamic aspects of adsorbed surfactants.- 2.9.1 The Marangoni effect.- References.- 3 Insoluble monolayers.- 3.1 Introduction.- 3.2 Historical background.- 3.2.1 The Langmuir trough and its origin.- 3.2.2 Use of the Langmuir trough.- 3.3 Phase changes and types of film.- 3.3.1 Gaseous films.- 3.3.2 The LE + G region.- 3.3.3 The liquid-expanded region.- 3.3.4 The transition region.- 3.3.5 The liquid-condensed region.- 3.3.6 The solid region.- 3.4 Ionised monolayers.- 3.4.1 Effect of polyvalent counterions.- 3.5 X-ray and neutron scattering.- 3.5.1 Horizontal scattering.- 3.5.2 Vertical scattering.- 3.5.3 Neutron scattering.- 3.6 Dynamic effects.- 3.6.1 Interfacial shear rheology.- 3.6.2 Interfacial dilatational rheology.- 3.6.3 Measurement of surface shear viscosity for insoluble monolayers.- 3.6.4 Measurement of surface dilatational rheological properties.- 3.7 Practical applications of insoluble monolayers.- References.- 4 Langmuir-Blodgett multilayers.- 4.1 Introduction.- 4.2 Historical background.- 4.3 Types of monolayer deposition.- 4.3.1 X-, Y- and Z-films.- 4.3.2 Incomplete deposition.- 4.3.3 Asymmetrical films.- 4.3.4 Polymeric systems.- 4.4 Structure of multilayers.- 4.4.1 Characterisation by simple techniques.- 4.4.2 Low-angle X-ray diffraction.- 4.4.3 Spectroscopic methods.- 4.4.4 Long-range order and homogeneity.- 4.5 Applications of LB films.- 4.5.1 Devices exploiting the insulating properties of the film.- 4.5.2 Applications combining ultra-thin property with useful chemistry.- 4.5.3 Multilayers requiring non-centrosymmetrical structures.- 4.5.4 Supermolecular assemblies and molecular electronics.- 4.5.5 Sensors.- 4.6 Self-assembly systems.- 4.6.1 Self-assembly monolayers.- 4.6.2 Self-assembly multilayers.- References.- 5 Micelle formation.- 5.1 Evidence for micelle formation.- 5.2 Structure of micelles.- 5.2.1 Hartley's model for spherical micelles.- 5.2.2 Simple geometric factors.- 5.2.3 Spherical micelles.- 5.2.4 Cylindrical micelles.- 5.2.5 Counterion binding.- 5.3 Dynamics of micellar aggregation.- 5.3.1 The multiple equilibrium model.- 5.4 The critical micelle concentration (CMC).- 5.4.1 Ionic surfactants.- 5.4.2 Non-ionic surfactants.- 5.4.3 Factors affecting the CMC.- 5.4.4 Methods for measuring the CMC.- 5.5 Thermodynamics of micelle formation.- 5.5.1 Simple thermodynamic theory.- 5.5.2 Experimental data for the thermodynamic parameters of micellisation.- 5.5.3 Mechanism of micelle formation.- 5.6 Solubilisation.- 5.6.1 Polar solubilisates.- 5.6.2 Effect of temperature and electrolyte addition.- 5.7 Applications of micellar solutions.- 5.7.1 Detergency.- 5.7.2 Application of cylindrical micelles.- 5.7.3 Solubilisation.- 5.7.4 Micellar-enhanced ultrafiltration.- 5.7.5 Micellar catalysis.- References.- 6 Mixed-micelle formation.- 6.1 Qualitative observations.- 6.2 Thermodynamics of mixed-micelle formation.- 6.2.1 Surface tensions of surfactant solutions.- 6.3 Thermodynamics of non-ideal mixed-micelle formation.- 6.3.1 Mix.
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Buch. Condizione: Neu. Neuware - Proceedings of the 1990 Conference on the Southwest Economy Sponsored by the Federal Reserve Bank of Dallas.
Brain Dopaminergic Systems : Imaging with Positron Tomography
EEC Concerted Action on Pet Investigations of Cellular Regeneration and Degeneration
Lingua: Inglese
Editore: Springer Okt 1991, 1991
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Buch. Condizione: Neu. Neuware - 1. Neuroanatomy of dopaminergic system in the human brain.- 2. Radioligands for PET studies of D2-receptors: butyrophenone and ergot derivatives.- 3. Radioligands for dopamine receptor PET studies: benzamides and ligands for dopamine D-1 receptors.- 4. Monoamine precursors in PET research - bioch…emical issues and functional significance.- 5. Quantitation problems in positron emission tomography (PET) as applied to the kinetic analysis of the striatum dopamine data.- 6. Investigation of the dopamine system with positron emission tomography: general issues in modeling.- 7. Modelisation: application to the D2 receptors.- 8. [18F] Fluorodopa uptake in brain.- 9. Dopamine reuptake sites: the issues.- 10. Movement disorders: the clinical issues.- 11. Non-human primate models of dopamine system disorders: understanding neurodegenerative diseases and testing new therapeutic strategies.- 12. The dopamine system and mental disorders: clinical and psychopharmacological overview.- 13. D2 dopamine receptors and schizophrenia.- 14. The assessment of central D2-dopanvne receptor occupancy with positron emission tomography in long-term medicated schizophrenic patients.- 15. Measurement of dopamine receptor occupancy: clinical issues.
Lingua: Inglese
Editore: Springer Nature Okt 1991, 1991
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Buch. Condizione: Neu. Neuware - 1. Advances in cancer imaging and therapy with radiolabelled antibodies.- 2. Evaluation of the diagnostic utility of immunoscintigraphy in oncology.- 3. The quality control and clinical testing of radiolabelled antibodies.- 4. Clinical utility of radiolabelled monoclonal antibodies in the managem…ent of gastrointestinal cancer.- 5. Use of 123-I radiolabelled F(AB')2 fragments of anti-CEA monoclonal antibody for the detection of primary and metastatic gastrointestinal carcinomas.- 6. Bispecific monoclonal antibodies for two phase radioimmunotherapy.- 7. Antimyosin antibody imaging in myocardial infarction.- 8. Antimyosin based radioimmunodetection of myocarditis cardiomyopathy and cardiac transplant rejection.- 9. Recent advances in the use of radiolabelled monoclonal antibodies in the management of ovarian cancer.- 10. Monoclonal antibodies for cell labelling with particular reference to thrombus imaging.- 11. The role of nuclear medicine in the evaluation of the patient with acquired immune deficiency syndrome (AIDS).- 12. Detection of inflammation/infection using radiolabelled anti-granulocyte antibodies: possibilities and limitations.- 13. A new marker for the detection of adenocardinomas by radioimmunoscintigraphy.- 14. New developments in the diagnosis of AIDS and strategies for therapy.
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Buch. Condizione: Neu. Neuware - Oceanic basalts are the most abundant rock type found at the earth's surface, and as such they have been the subject of considerable research, particularly since the concept of sea-floor spreading became widely accepted. This book provides a review of these rocks, first dicussing how we sample th…e ocean floor and what we know about the structure of the oceanic crust, followed by an overview of the various regional settings (Pacific crust, Atlantic crust, marginal basins, seamounts and islands) and finally examines the main processes (and their interactions) which prevail during the generation and emplacement of oceanic basalt magmas. This is a volume for geologists, geochemists and geophysicists and a source of reference for advanced undergraduate students and postgraduates in these disciplines.
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Buch. Condizione: Neu. Neuware - Ever since the seminal works on traveling waves and morphogenesis by Fisher, by Kolmogorov, Petrovski and Piscunov, and by Turing, scientists from many disciplines have been fascinated by questions concerning the formation of steady or dynamic patterns in reactive media. Contributions to this vol…ume have been made by chemists, chemical engineers, mathematicians (both pure and applied), and physicists. The topics covered range from reports of experimental studies, through descriptions of numerical experiments, to rather abstract theoretical investigations, each exhibiting different aspects of a very diverse field.
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Buch. Condizione: Neu. Neuware - Recently, a new area of scholarship has based itself on the fact that Keynes was a philosopher before he was an economist. It aims to provide more profound understandings of Keynes's economic writings through an examination of his philosophical contributions, particularly his Treatise on Probabil…ity and his many unpublished papers. Its central contention is that approaching Keynes simply as 'an economist' is insufficient, and that much richer viewpoints emerge when he is regarded as 'a philosopher-economist'. As this book makes clear lively debates continue, however, over how best to interpret Keynes's philosophical stances.
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Taschenbuch. Condizione: Neu. Neuware - The basic accomplishment of sentence processing research in the 1960s and 70s was to establish that perceivers assign structural representa tions to sentences (Fodor et al., 1974) and they do so systematically using the formation rules of the grammar (Forster, 1979). This may sound like a…singularly unimpressive accomplishment to a contem porary linguist - mere proof of the obvious. But one must recall the extremely impoverished view of language and language processing prevalent in the U.S. in the 1950s. Processing mechanisms were thought to consist of slightly elaborated stimulus-response associations, and sentences were viewed as mere strings of concatenated words. On this view, understanding language comprehension was naturally equated with knowing how words and associations between them were learned. Consequently, language pro cessing was investigated by performing a seemingly endless series of tedious paired associate learning studies. The shift in the 1960s to a view of sentences emphasizing hierarchically organized structures con taining grammatical depencies between widely separated items was thus dramatic.
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Buch. Condizione: Neu. Neuware - Proceedings of a Seminar in the CEC Agricultural Research Programme, held in Brussels, November 12-14, 1990.
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Buch. Condizione: Neu. Neuware - The various efforts to develop a Marxist philosophy of science in the one time 'socialist' countries were casualties of the Cold War. Even those who were in no way Marxists, and those who were undogmatic in their Marxisms, now confront a new world. All the more harsh is it for those who worked wi…thin the framework imposed upon professional philosophy by the official ideology. Here in this book, we are concerned with some 31 colleagues from the late German Democratic Republic, representative in their scholarship of the achievements of a curiously creative while dismayingly repressive period. The literature published in the GDR was blossoming, certainly in the final decade, but it developed within a totalitarian regime where personal careers either advanced or faltered through the private protection or denunciation of mentors. We will never know how many good minds did not enter the field of philosophy in the first place due to their prudent judgments that there was a virtual requirement that the candidate join the Socialist Unity (i.e. Communist) Party. Among those who started careers and were sidetracked, the record is now beginning to be revealed; and for the rest, the price of 'doing philosophy' was mostly silence in the face of harassments the likes of which make academic politics in the West seem child's play.
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Buch. Condizione: Neu. Neuware - 'De la vaporisation et de la centralisation du Moi. Tout est la. ' Charles Baudelaire (journal entry) This anthology is my visit to Oz. On sabbatical in 1988, I chose to reeducate myself in general biology, first broadening my erudition as an immunologist, and then extending that horizon into evo…lutionary biology and embryology. I was particularly attracted to reflections on the nature of the self as an organ ismic concept. I went in search of reorientation as a confused physician scientist, and came back with this book. Baum's Wizard of Oz presented opportunities for growth, and herein lies the purpose of this volume: in providing updated statements concerning the nature of the organism from both scientific and metaphysical perspectives, we might ponder the philo sophical basis of our research in the hope of gaining insight into our endeavor, not to mention the possibility of its enrichment; it is this contem plative view of our research which offers a unique dimension to this anthology. To that end, the project follows my idiosyncratic prejudices. The anthology derives in large measure from the symposium, 'Organism and the Origin of Self' held at Boston University, April 3-4, 1990, under the auspices of the Boston University Center for the Philosophy and History of Science, with generous support of Robert Cohen and Jon Westling, and the organizational skills of Deborah Wilkes. The Symposium presented three ver sions of the Self from the vantages of embryology, evolution and medicine.
Lingua: Inglese
Editore: Springer Us Okt 1991, 1991
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Buch. Condizione: Neu. Neuware - Gastric cancer has been one of the great malignant scourges affecting man kind for as long as medical records have been kept. Until operative resection pioneered by Bilroth and others became available, no effective treatment was feasible and death from cancer was virtually inevitable. Even with r…esection by total gastrectomy, the chances of tumor eradication remained small. Over recent years, however, the situation has been changing. Some changes have resulted from better understanding of the disease, early detec tion, and better management techniques with applied clinical research, but the reasons for other changes are poorly understood. For example, the incidence of gastric cancer is decreasing, especially in westernized societies, where it has fallen from one of the most common cancers to no longer being in the top five causes of cancer death. Still it remains the number one killer of adult males in Japan and Korea. Whether the reduced incidence in western societies is a result of dietary changes or methods of food preservation, or some other reason, is as yet uncertain. Improvements in outcome have been reported from mass screening and early detection; more refined techniques of establishing early diagnosis, tumor type, and tumor extent; more radical surgical resection; and resection at earlier stages of disease.
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Buch. Condizione: Neu. Neuware - To-date computers are supposed to store and exploit knowledge. At least that is one of the aims of research fields such as Artificial Intelligence and Information Systems. However, the problem is to understand what knowledge means, to find ways of representing knowledge, and to specify automated…machineries that can extract useful information from stored knowledge. Knowledge is something people have in their mind, and which they can express through natural language. Knowl edge is acquired not only from books, but also from observations made during experiments; in other words, from data. Changing data into knowledge is not a straightforward task. A set of data is generally disorganized, contains useless details, although it can be incomplete. Knowledge is just the opposite: organized (e.g. laying bare dependencies, or classifications), but expressed by means of a poorer language, i.e. pervaded by imprecision or even vagueness, and assuming a level of granularity. One may say that knowledge is summarized and organized data - at least the kind of knowledge that computers can store.
Lingua: Tedesco
Editore: Springer Berlin Heidelberg, Springer Okt 1991, 1991
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Taschenbuch. Condizione: Neu. Neuware - Das Buch befa~t sich mit Entscheidungssituationen, bei denenmehrere Entscheidungskriterien zu ber}cksichtigen sind. DieEntscheidungsprobleme k nnen dabei entweder wenigerabz{hlbare Entscheidungsalternativen enthaltenoder siek nnen einen stetigen L sungsraum haben. Betrachtet werdendiese Pr…obleme sowohl von der formalenentscheidungstheoretischenSeite als auch von derpragmatischen Seite der Entscheidungsunterst}tzung. Hierbeiwerden sowohl scharf formulierte Entscheidungssituationenber}cksichtigt wie auch schlecht strukturierte Umfelder.Das Buch ist aus einer }ber mehrere Jahre an der RWTH Aachengehaltenen Vorlesung entstanden und ist als Lehrbuchgedacht. Zu jedem Kapitel sind entsprechendeSchl}sselreferenzen angegeben, so da~ der Student leichterden Zugang zu der jeweils relevanten Literatur findet. DieAutoren versuchen unter besonderer Ber}cksichtigung desdidaktischenAufbaus den neuesten Stand der Wissenschaft aufdiesem Gebiet darzustellen. Das Thema des Buches sindEntscheidungen, bei denen mehrere Kriterien zuber}cksichtigen sind. Es stellt Modelle aus derEntscheidungstheorie dar und beschreibt bestehende Verfahrenund Methoden, die der Entscheidungsf{llende verwenden kann,um solche Probleme in den verschiedensten Situationen zul sen.
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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 -A famous theorem in the theory of linear spaces states thatevery finite linear space has at least as many lines aspoints. This result of De Bruijn and Erd|s led to theconjecture that every linear space with 'few lines' canbeobtaine…d from a projective plane by changing only a smallpart of itsstructure.Many results related to this conjecture have been proved inthe last twenty years. This monograph surveys the subjectand presents several new results, such as the recent proofof the Dowling-Wilsonconjecture.Typical methods used in combinatorics are developed so thatthe text can be understood without too much background. Thusthe book will be of interest to anybody doing combinatoricsand can also help other readers to learn the techniques usedin this particular field. 216 pp. Englisch.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Locally semialgebraic spaces serve as an appropriateframework for studying the topological properties ofvarieties and semialgebraic sets over a real closed field.This book contributes to the fundamental theory ofsemialgebraic topol…ogy and falls into two main parts.The first dealswith sheaves and their cohomology on spaceswhich locally look like a constructible subset of a realspectrum. Topics like families of support, homotopy, acyclicsheaves, base-change theorems and cohomological dimensionare considered.In the second part a homology theory for locally completelocally semialgebraic spaces over a real closed field isdeveloped, the semialgebraic analogue of classicalBore-Moore-homology. Topics include fundamental classes ofmanifolds and varieties, Poincare duality, extensions of thebase field and a comparison with the classical theory.Applying semialgebraic Borel-Moore-homology, a semialgebraic('topological') approach to intersection theory on varietiesover an algebraically closed field of characteristic zero isgiven. The book is addressed to researchers and advancedstudents in real algebraic geometry and related areas. 148 pp. Englisch.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This research monograph reports on recent work on the theoryof singular Siegel modular forms of arbitrary level.Singular modular forms are represented as linearcombinations of theta series. The reader is assumed toknowonly the basi…c theory of Siegel modular forms. 180 pp. Englisch.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The theory of center manifold reduction is studied in thismonograph in the context of (infinite-dimensional) Hamil-tonian and Lagrangian systems. The aim is to establish a'natural reduction method' for Lagrangian systems to theirce…nter manifolds. Nonautonomous problems are considered aswell assystems invariant under the action of a Lie group (including the case of relative equilibria).The theory is applied to elliptic variational problemsoncylindrical domains. As a result, all bounded solutionsbifurcating from a trivial state can be described by areduced finite-dimensional variational problem of Lagrangiantype. This provides a rigorous justification of rod theoryfrom fully nonlinear three-dimensional elasticity.The book will be of interest to researchers working inclassical mechanics, dynamical systems, elliptic variationalproblems, and continuum mechanics. It begins with theelements of Hamiltonian theory and center manifold reductionin order to make the methods accessible to non-specialists,from graduate student level. 156 pp. Englisch.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -All papers appearing in this volume are original researcharticles and have not been published elsewhere. They meetthe requirements that are necessary for publication in agood quality primary journal.E.Belchev, S.Hineva: On the mini…mal hypersurfaces of alocally symmetric manifold. -N.Blasic, N.Bokan, P.Gilkey:The spectral geometry of the Laplacian and the conformalLaplacian for manifolds with boundary. -J.Bolton,W.M.Oxbury, L.Vrancken, L.M. Woodward: Minimal immersions ofRP2 into CPn. -W.Cieslak, A. Miernowski, W.Mozgawa: Isopticsof a strictly convex curve. -F.Dillen, L.Vrancken:Generalized Cayley surfaces. -A.Ferrandez, O.J.Garay,P.Lucas: On a certain class of conformally flat Euclideanhypersurfaces. -P.Gauduchon: Self-dual manifolds withnon-negative Ricci operator. -B.Hajduk: On the obstructiongroup toexistence of Riemannian metrics of positive scalarcurvature. -U.Hammenstaedt: Compact manifolds with1/4-pinched negative curvature. -J.Jost, Xiaowei Peng: Thegeometry of moduli spaces of stable vector bundles overRiemannian surfaces. - O.Kowalski, F.Tricerri: A canonicalconnection for locally homogeneous Riemannian manifolds.-M.Kozlowski: Some improper affine spheres in A3. -R.Kusner:A maximum principle at infinity and the topology of completeembedded surfaces with constant mean curvature. -Anmin Li:Affine completeness and Euclidean completeness. -U.Lumiste:On submanifolds with parallel higher order fundamental formin Euclidean spaces. -A.Martinez, F.Milan: Convex affinesurfaces with constant affine mean curvature. -M.Min-Oo,E.A.Ruh, P.Tondeur: Transversal curvature and tautness forRiemannian foliations. -S.Montiel, A.Ros: Schroedingeroperators associated to a holomorphic map. -D.Motreanu:Generic existence of Morse functions on infinite dimensionalRiemannian manifolds and applications. -B.Opozda: Someextensions of Radon's theorem. 296 pp. Englisch.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Since the predecessor to this volume (LNM 1186, Eds. L.Arnold, V. Wihstutz)appeared in 1986, significant progresshas been made in the theory and applications of Lyapunovexponents - one of the key concepts of dynamical systems -and…in particular, pronounced shifts towards nonlinear andinfinite-dimensional systems and engineering applicationsare observable. This volume opens with an introductorysurvey article (Arnold/Crauel) followed by 26 original(fully refereed) research papers, some of which have in partsurvey character.From the Contents: L. Arnold, H. Crauel: Random DynamicalSystems.- I.Ya. Goldscheid: Lyapunov exponents andasymptotic behaviour of the product of random matrices.- Y.Peres: Analytic dependence of Lyapunov exponents ontransition probabilities.- O. Knill: The upper Lyapunovexponent of Sl (2, R) cocycles:Discontinuity and theproblem of positivity.- Yu.D. Latushkin, A.M. Stepin: Linearskew-product flows and semigroups of weighted compositionoperators.- P. Baxendale: Invariant measures for nonlinearstochastic differential equations.- Y. Kifer: Largedeviationsfor random expanding maps.- P. Thieullen:Generalisation du theoreme de Pesin pour l' -entropie.-S.T. Ariaratnam, W.-C. Xie: Lyapunov exponents in stochasticstructural mechanics.- F. Colonius, W. Kliemann: Lyapunovexponents of control flows. 376 pp. Englisch, Französisch.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Part of a series which offers accounts of the literary careers of the most widely read British and Irish authors. This volume looks at T.S.Eliot and traces the professional, publishing and social contexts which shaped his writing.…189 pp. Englisch.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The book reports on recent work by the authors on the bifurcation structure of singular points of planar vector fields whose linear parts are nilpotent. The bifurcation diagrams of the most important codimension-three cases are stu…died in detail. The results presented reach the limits of what is currently known on the bifurcation theory of planar vector fields. While the treatment is geometric, special analytical tools using abelian integrals are needed, and are explicitly developed. The rescaling and normalization methods are improved for application here. The reader is assumed to be familiar with the elements of Bifurcation and Dynamical Systems Theory. The book is addressed to researchers and graduate students working in Ordinary Differential Equations and Dynamical Systems, as well as anyone modelling complex multiparametric phenomena. 240 pp. Englisch.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -These proceedings reflect the main activities of the Paris Séminaire d'Algèbre 1989-1990, with a series of papers in Invariant Theory, Representation Theory and Combinatorics. It contains original works from J. Dixmier, F. Dumas, D…. Krob, P. Pragacz and B.J. Schmid, as well as a new presentation of Derived Categories by J.E. Björk and as introduction to the deformation theory of Lie equations by J.F. Pommaret. J. Dixmier: Sur les invariants du groupe symétrique dans certaines représentations II.- B.J. Schmid: Finite groups and invariant theory.- J.E. Björk: Derived categories.- P. Pragacz: Algebro-Geometric applications of Schur S- and Q-polynomials.- F. Dumas: Sous-corps de fractions rationnelles des corps gauches de séries de Laurent.- D. Krob: Expressions rationnelles sur un anneau.- J.F. Pommaret: Deformation theory of algebraic and Geometric structures.- M. van den Bergh: Differential operators on semi-invariants for tori and weighted projective spaces. 284 pp. Englisch, Französisch.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware 258 pp. Englisch.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware 319 pp. Englisch.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Previous biographies have set Jane Austen within her social context. This biography places her firmly within her professional context as one of an increasing number of women who published novels between 1790 and 1820. Being a profe…ssional writer was, apart from her family, more important to Austen than anything else in her life. 201 pp. Englisch.
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -A survey is given on the state of the art in theory and numerical solution of general autonomous linear quadratic optimal control problems (continuous and discrete) with differential algebraic equation constraints. It incorporates…the newest developments on differential algebraic equations, Riccati equations and invariant subspace problems. In particular, it gives a decision chart of numerical methods, that can be used to determine the right numerical method according to special properties of the problem. The book closes a gap between mathematical theory, numerical solution and engineering application. The mathematical tools are kept as basic as possible in order to address the different groups of readers, mathematicians and engineers. 180 pp. Englisch.
