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Editore: Springer Berlin Heidelberg Dez 1997, 1997
ISBN 10: 3540639381ISBN 13: 9783540639381
Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, Germania
Libro Print on Demand
Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book constitutes the strictly refereed post-conference proceedings of the 5th International Symposium on Graph Drawing, GD'97, held in Rome, Italy, in September 1997. The 33 revised full papers and 10 systems demonstrations presented were selected from 80 submissions. The topics covered include planarity, crossing theory, three dimensional representations, orthogonal representations, clustering and labeling problems, packing problems, general methodologies, and systems and applications. 468 pp. Englisch.
Editore: Springer Berlin Heidelberg Dez 1997, 1997
ISBN 10: 3540636323ISBN 13: 9783540636328
Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, Germania
Libro Print on Demand
Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -From the reviews: 'This book presents an important and novel approach to Jordan algebras. [.] Springer's work will be of service to research workers familiar with linear algebraic groups who find they need to know something about Jordan algebras and will provide Jordan algebraists with new techniques and a new approach to finite-dimensional algebras over fields.' American Scientist 184 pp. Englisch.
Editore: Springer Berlin Heidelberg Dez 1997, 1997
ISBN 10: 3540635823ISBN 13: 9783540635826
Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, Germania
Libro Print on Demand
Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Der Internistenkongreß in Wiesbaden im April 1997 hat sich neben den üblichen wissenschaftlichen Symposien und den unterschiedli chen Begleitveranstaltungen auch in sechs gesonderten Seminarver anstaltungen mit übergreifenden Zeitfragen der Medizin befaßt. Die hier behandelten Probleme entstammen nicht speziell der Inne ren Medizin oder einem ihrer Schwerpunkte, sondern betreffen allge meinere Probleme des gegenwärtigen Medizinbetriebes. Der Kongreß, der mit dem Vortrag zum Thema 'Der Wissen schaft verpflichtet' eröffnet wurde (hier nachgedruckt mit freundli cher Genehmigung der Zeitschrift 'Medizinische Klinik'~ Verlag Urban & Vogel, München), stand unter dem Leitthema 'Methoden des Erkenntnisgewinnes in der Medizin'. Wissenschaft und Er kenntnisgewinn ist auch das Thema der ersten Gruppe von Beiträ gen dieses Buches. Sie entstammen den Seminarveranstaltungen zu den Themen 'Methoden des Erkenntnisgewinnes in der Medizin' bzw. 'Wirksamkeitsprüfungen von Arzneimitteln - neue Dimensio nen in der Beurteilung des therapeutischen Wertes'. Aus der Ver pflichtung zur Wissenschaft in der Medizin erwächst die Verpflich tung zur Qualitätssicherung in der Patientenbetreuung. Die zu die sem Thema zusammengestellten Beiträge bildeten den Inhalt des Seminars 'Qualitätssicherung in der Klinik und Praxis des Interni sten'. Die Qualität der medizinischen Versorgung kann heutzutage nicht mehr ohne die Dimension der Ökonomie betrachtet werden, woraus sich die dritte thematische Gruppe dieses Buches ergibt. Diese Beiträge entstammen dem Seminar 'Klinische Ökonomi- eine Herausforderung für den Internisten'. Das letzte Seminar zu Zeitfragen der Medizin war dem Thema 'Akzeptanz klinischer Arzneimittelforschung in Deutschland - Pro bleme und Chancen' gewidmet. 272 pp. Deutsch.
Editore: Springer Berlin Heidelberg Dez 1997, 1997
ISBN 10: 3540633359ISBN 13: 9783540633358
Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, Germania
Libro Print on Demand
Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Wann sollen welche supportiven Maßnahmen im Rahmen einer Chemo- oder Strahlentherapie eingesetzt werden Das Buch gibt aktuelle Praxis-Antworten und bietet gleichzeitig Einblicke in experimentelle Vorgehensweisen, die sich noch in der klinischen Prüfung befinden. Es unterstützt Sie in der Tumortherapie zuverlässig bei der sicheren Auswahl supportiver Maßnahmen. 216 pp. Deutsch.
Editore: Springer Berlin Heidelberg Dez 1997, 1997
ISBN 10: 3540633685ISBN 13: 9783540633686
Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, Germania
Libro Print on Demand
Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Die medikamentöse Thromboembolie-Prophylaxe ist ein fester Bestandteil in der inneren und operativen Medizin und spielt eine wesentliche Rolle auch in der Frauenheilkunde. Das vorliegene Buch diskutiert ausführlich die Zusammenhänge und physiologischen Abläufe von hormonellem Zyklus und Blutgerinnung. Individuelle Risiken einer Thrombose bei Ovulationshemmung, Schwangerschaft und in der Menopause werden in verschiedenen Beiträgen beschrieben. Dieses Buch dient damit zur Weiterbildung für Internisten und Gynäkologen, beantwortet zahlreiche Fragen und steht dem klinisch tätigen Arzt als täglicher Ratgeber zur Verfügung. Das Thromboserisiko der Frau bei der Einnahme von Ovulationshemmern, während der Hormonsubstitution in der Menopause sowie im Verlauf der Schwangerschaft und in der postpartalen Phase, stellt den behandelnden Arzt vor besondere Aufgaben. Dieses Buch beschreibt ausführlich die individuellen Thromboserisiken und die Behandlungsstrategien bei thromboembolischen Komplikationen. Es ist somit als Ratgeber gedacht, insbesondere für Gynäkologen, Internisten, Allgemeinmediziner sowie für Chirurgen. 104 pp. Deutsch.
Editore: Springer Berlin Heidelberg Dez 1997, 1997
ISBN 10: 354063665XISBN 13: 9783540636656
Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, Germania
Libro Print on Demand
Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Schuldverhältnisse der Wohnungseigentümer waren häufig Gegenstand gerichtlicher Entscheidungen. Als problematisch hat sich dabei erwiesen, daß eine Vielzahl von Personen beteiligt ist. Das Wohnungseigentumsgesetz enthält jedoch keine Vorschriften, die speziell die Schuldverhältnisse zwischen Wohnungseigentümern und Dritten regeln. Der Autor untersucht diese Schuldverhältnisse und ordnet sie in die Dogmatik der Gläubiger- und Schuldnermehrheiten des BGB ein. Es wird deutlich, dass Schuldverhältnisse der Wohnungseigentümer viel weniger von wohnungseigentumsrechtlichen Besonderheiten geprägt sind, als dies häufig angenommen wird. 336 pp. Deutsch.
Editore: Springer Berlin Heidelberg Dez 1997, 1997
ISBN 10: 3540624317ISBN 13: 9783540624318
Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, Germania
Libro Print on Demand
Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Eine kompakte Darstellung der Grundlagen der Elektrotechnik in einem Band, mit Formelsammlung, bietet eine echte Alternative zu den üblichen mehrbändigen Werken. Die praxiserfahrenen Autoren lehren an der Universität Hannover und beschränken die Inhalte auf das wirklich Wesentliche. 380 pp. Deutsch.
Editore: Springer Berlin Heidelberg Dez 1997, 1997
ISBN 10: 3540636862ISBN 13: 9783540636861
Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, Germania
Libro Print on Demand
Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Few mathematical books are worth translating 50 years after original publication. Polyá-Szegö is one! It was published in German in 1924, and its English edition was widely acclaimed when it appeared in 1972. In the past, more of the leading mathematicians proposed and solved problems than today. Their collection of the best in analysis is a heritage of lasting value. 412 pp. Englisch.
Editore: Springer Berlin Heidelberg Dez 1997, 1997
ISBN 10: 3540636404ISBN 13: 9783540636403
Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, Germania
Libro Print on Demand
Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -From the reviews: 'The work is one of the real classics of this century; it has had much influence on teaching, on research in several branches of hard analysis, particularly complex function theory, and it has been an essential indispensable source book for those seriously interested in mathematical problems.' Bulletin of the American Mathematical Society 420 pp. Englisch.
Editore: Springer Berlin Heidelberg Dez 1997, 1997
ISBN 10: 3540636331ISBN 13: 9783540636335
Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, Germania
Libro Print on Demand
Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -From the reviews: 'This book is an excellent and comprehensive survey of the theory of von Neumann algebras. It includes all the fundamental results of the subject, and is a valuable reference for both the beginner and the expert.' (Math. Reviews) 'In theory, this book can be read by a well-trained third-year graduate student - but the reader had better have a great deal of mathematical sophistication. The specialist in this and allied areas will find the wealth of recent results and new approaches throughout the text especially rewarding.' (American Scientist) 'The title of this book at once suggests comparison with the two volumes of Dixmier and the fact that one can seriously make this comparison indicates that it is a far more substantial work that others on this subject which have recently appeared'(BLMSoc) 276 pp. Englisch.
Editore: Springer Berlin Heidelberg Dez 1997, 1997
ISBN 10: 3540610057ISBN 13: 9783540610052
Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, Germania
Libro Print on Demand
Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Der 'Tumorhistologieschlüssel' stellt Ihnen systematisch und anwendungsgerecht alle aktuellen Informationen zur Tumorklassifikation und Tumorkodierung zur Verfügung.o Die aktualisierte 2. Auflage enthält alle neuen Tumor-Entitäten sowie neu definierte Krankheitsbegriffe.o Ebenfalls neu sind die ausführlichen Anmerkungen zu histologisch-zytologischen Charakteristika der Tumoren, die Ihnen sichere Orientierungshilfen für Ihre diagnostischen Entscheidungen bieten.o Die übersichtliche Gliederung in numerische Liste und alphabetischen Index sowie die Verwendung aller geläufigen Termini und Synonyme machen Ihnen die Arbeit mit dem Schlüssel leicht.Mit diesem Praxis-Buch erhalten Sie eine vollständige, aktuelle Tumorklassifikation, die für Ihre Diagnostik und für die Kodierung in allen Tumorregistern absolut unverzichtbarer Standard ist. 312 pp. Deutsch.
Editore: Springer Berlin Heidelberg Dez 1997, 1997
ISBN 10: 3540639357ISBN 13: 9783540639350
Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, Germania
Libro Print on Demand
Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book constitutes the refereed proceedings of the 4th International COST 237 Workshop, held in Lisboa, Portugal, in December 1997 of the European COST Programme on Multimedia Telecommunication Services. The 12 revised full papers presented were selected from 24 submissions. The topics covered include multimedia presentation, QoS Control, electronic commerce, CORBA and DCE, real-time multimedia, multimedia conferenceing, multicast networking, heterogeneous communications environments, and others. 200 pp. Englisch.
Editore: Springer Berlin Heidelberg Dez 1997, 1997
ISBN 10: 3540629955ISBN 13: 9783540629955
Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, Germania
Libro Print on Demand
Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The articles in this volume were written to commemorate Reinhold Remmert's 60th birthday in June, 1990. They are surveys, meant to facilitate access to some of the many aspects of the theory of complex manifolds, and demonstrate the interplay between complex analysis and many other branches of mathematics, algebraic geometry, differential topology, representations of Lie groups, and mathematical physics being only the most obvious of these branches. Each of these articles should serve not only to describe the particular circle of ideas in complex analysis with which it deals but also as a guide to the many mathematical ideas related to its theme. 320 pp. Englisch.
Editore: Springer Berlin Heidelberg Dez 1997, 1997
ISBN 10: 3540639276ISBN 13: 9783540639275
Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, Germania
Libro Print on Demand
Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book constitutes the refereed proceedings of the 6th International Conference on Cryptography and Coding held at the Institute of Mathematics and its Applications (IMA) in Cirencester, UK, in December 1997. The 35 revised full papers presented emphasize the links and commonality between the underlying mathematical bases and algorithmic foundations of cryptography, error control coding and digital signal processing devices available today. Besides classical crypto topics, other issues concerning information transmission and processing are addressed, such as multiple-access coding, image processing, synchronization and sequence design. 352 pp. Englisch.
Editore: Springer Berlin Heidelberg Dez 1997, 1997
ISBN 10: 3540594833ISBN 13: 9783540594833
Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, Germania
Libro Print on Demand
Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Migrating from paper-based to electronic documentation is a task that needs careful planning. Electronic texts offer new ways to store, retrieve, update, and cross-link information. Hypermedia documents, in which texts are cross-linked via keywords and in which audio and video files may also be integrated, require new levels of organization and strict discipline from authors, editors, and managers. As documents become 'living' their document managers must control access, privileges, interconnections, segmentation, and flexibility for different readers. This book introduces and surveys these new developments. Based on a wealth of experience in large hypermedia projects, it provides a step-by-step guide to all aspects of hypermedia development, from strategic decision-making to editing formats and production methods. 304 pp. Englisch.
Editore: Springer Berlin Heidelberg Dez 1997, 1997
ISBN 10: 3540639829ISBN 13: 9783540639824
Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, Germania
Libro Print on Demand
Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -A common approach in software engineering is to apply during the design phase a variety of structured techniques like top-down design, decomposition and abstraction, while only subsequently, in the implementation phase, is the design tested to ensure reliability. But this approach neglects that central aspects of software design and program development have a strong formal character which admits tool support for the construction of reliable and correct computer systems based on formal reasoning. This monograph provides much information both for theoreticians interested in algebraic theories, and for software engineers building practically relevant tools. The author presents the theoretical foundations needed for the verification of reactive, sequential infinite-state systems. 180 pp. Englisch.
Editore: Springer Berlin Heidelberg Dez 1997, 1997
ISBN 10: 3540639128ISBN 13: 9783540639121
Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, Germania
Libro Print on Demand
Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book constitutes the refereed proceedings of the 4th European Conference on Planning, ECP'97, held in Toulouse, France, in September 1997. The 35 revised full papers presented were carefully reviewed and selected from 90 submissions. The range of topics covered spans all aspects of current artificial intelligence planning, from theoretical and foundational matters to actual planning of systems and applications in a variety of areas. 472 pp. Englisch.
Editore: Springer Berlin Heidelberg Dez 1997, 1997
ISBN 10: 3540639314ISBN 13: 9783540639312
Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, Germania
Libro Print on Demand
Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -These two volumes constitute the refereed proceedings of the Third Asian Conference on Computer Vision, ACCV'98, held in Hong Kong, China, in January 1998. The volumes present together a total of 58 revised full papers and 112 revised posters selected from over 300 submissions. The papers are organized in topical sections on biometry, physics-based vision, color vision, robot vision and navigation, OCR and applications, low-level processing, active vision, face and hand posture recognition, segmentation and grouping, computer vision and virtual reality, motion analysis, and object recognition and modeling. 788 pp. Englisch.
Editore: Springer Berlin Heidelberg Dez 1997, 1997
ISBN 10: 3540600736ISBN 13: 9783540600732
Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, Germania
Libro Print on Demand
Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Supplementing 'Quantum Mechanics. An Introduction' and 'Quantum Mechanics. Symmetries', this book covers an important additional course on quantum mechanics, including an introduction to quantum statistics, the structure of atoms and molecules, and the Schrödinger wave equation. 72 fully worked examples and problems consolidate the material. 400 pp. Englisch.
Editore: Springer Berlin Heidelberg Dez 1997, 1997
ISBN 10: 3540638881ISBN 13: 9783540638889
Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, Germania
Libro Print on Demand
Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book constitutes the refereed proceedings of the 6th International Conference on Algebraic Methodology and Software Engineering, AMAST'97, held in Sydney, Australia, in December 1997. The volume presents 48 revised full papers selected from an unusually high number of submissions. One of the outstanding features of AMAST is its mix of serious mathematical development of formal methods in software engineering with practical concerns, tools, case studies, and industrial development. The volume addresses all current aspects of formal methods in software engineering and programming methodology, with a certain emphasis on algebraic and logical foundations. 612 pp. Englisch.
Editore: Springer Berlin Heidelberg Dez 1997, 1997
ISBN 10: 3540639306ISBN 13: 9783540639305
Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, Germania
Libro Print on Demand
Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -These two volumes constitute the refereed proceedings of the Third Asian Conference on Computer Vision, ACCV'98, held in Hong Kong, China, in January 1998. The volumes present together a total of 58 revised full papers and 112 revised posters selected from over 300 submissions. The papers are organized in topical sections on biometry, physics-based vision, color vision, robot vision and navigation, OCR and applications, low-level processing, active vision, face and hand posture recognition, segmentation and grouping, computer vision and virtual reality, motion analysis, and object recognition and modeling. 792 pp. Englisch.
Editore: Springer Berlin Heidelberg Dez 1997, 1997
ISBN 10: 3540627634ISBN 13: 9783540627630
Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, Germania
Libro Print on Demand
Buch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Following a dramatic evolution in spine surgery in the last decades the long and eagerly awaited spine manual provides a comprehensive overview on the methods developed in co-operation with the AO as well as the indications and pre-requisites of spine surgery. The authors - outstanding experts in spine surgery - describe the most up to date instruments, implants and techniques as well as their correct application. The spine manual itself thus becomes an essential and indispensable instrument for the spine surgeon. TOC:Aims and Principles.- Implants.- Biomechanics of Implants.- Biology of Fusion.- Classification of Fractures.- Stabilization Techniques: Upper Cervical Spine, Lower Cervical Spine, Thoraco-lumbar Spine.- Modular Stabilization System: Universal Spine System.- Other Fixation Systems. 260 pp. Englisch.
Editore: Springer Berlin Heidelberg Dez 1997, 1997
ISBN 10: 3540636072ISBN 13: 9783540636076
Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, Germania
Libro Print on Demand
Buch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -An understanding of the characteristics and the ecology of soils, particularly those of forest ecosystems in the humid tropics, is central to the development of sustainable forest management systems. The present book examines the contribution that forest soil science and forest ecology can make to sustainable land use in the humid tropics. Four main issues are addressed: characteristics and classification of forest soils, chemical and hydrological changes after forest utilization, soil fertility management in forest plantations and agroforestry systems as well as ecosystem studies from the dipterocarp forest region of Southeast Asia. Additionally, case studies include work from Guyana, Costa Rica, the Philippines, Malaysia, Australia and Nigeria. 216 pp. Englisch.
Editore: Springer Berlin Heidelberg Dez 1997, 1997
ISBN 10: 3540635483ISBN 13: 9783540635482
Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, Germania
Libro Print on Demand
Buch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -In this book the first three chapters outline the chemistry of nickel and heme largely associated with anaerobic life and believed to represent reactions which took place some 3-4x109years ago. Nickel has disappeared from the chemistry of man. The fascinating detail of the 'primitive' catalysts is of interest to industrial society since very simple feed-stock is used, hydrogen, carbon monoxide and sulphate for example. The fourth chapter switches attention to a metal which became valuable later in evolution, copper, and which is involved with the use of dioxygen. It also has extremely interesting catalytic sites in enzymes. The essence of the volume lies in an appreciation of metallo- enzymes and their changing roles as the environment changed. 224 pp. Englisch.
Editore: Springer Berlin Heidelberg Dez 1997, 1997
ISBN 10: 3540634223ISBN 13: 9783540634225
Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, Germania
Libro Print on Demand
Buch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The volumes 3/I and 3/J present a modern account of polycyclic aromatic hydrocarbons (PAHs) and their heterocyclic analogs in the environment. The authors are internationally well recognized scientists belonging to those working presently in the frontline of the different subfields of this interdisciplinary area of environmental science; they give an integrated thorough overview on this hot topic. Extensive cross-referencing between chapters provides the readers with an easy access to all major areas. Due to the huge amount of material the text is published in two volumes (3/I and 3/J). It is expected that both volumes will soon become a major source of information and inspiration for all researchers actively working in PAH environmental chemistry or ecology. 416 pp. Englisch.
Editore: Springer Berlin Heidelberg Dez 1997, 1997
ISBN 10: 3540623949ISBN 13: 9783540623946
Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, Germania
Libro Print on Demand
Buch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Environmental Chemistry is a relatively young science. Interest in this subject, however, is growing very rapidly and, although no agreement has been reached as yet about the exact content and limits of this interdisciplinary discipline, there appears to be increasing interest in seeing environmental topics which are based on chemistry embodied in this subject. One of the first objectives of Environ mental Chemistry must be the study of the environment and of natural chemical processes which occur in the environment. A major purpose of this series on Environmental Chemistry, therefore, is to present a reasonably uniform view of various aspects of the chemistry of the environment and chemical reactions occurring in the environment. The industrial activities of man have given a new dimension to Environ mental Chemistry. We have now synthesized and described over five million chemical compounds and chemical industry produces about hundred and fifty million tons of synthetic chemicals annually. We ship billions of tons of oil per year and through mining operations and other geophysical modifications, large quantities of inorganic and organic materials are released from their natural deposits. Cities and metropolitan areas of up to 15 million inhabitants produce large quantities of waste in relatively small and confined areas. Much of the chemical products and waste products of modern society are released into the environment either during production, storage, transport, use or ultimate disposal. These released materials participate in natural cycles and reactions and frequently lead to interference and disturbance of natural systems. 444 pp. Englisch.