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6 produkter
6 produkter
1 187 kr
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The BIOGEOMON conference, held in Prague, September 1993, was dedicated to the use of geochemistry and biology in the elucidation of biogeochemical processes in the context of research on small catchments, which are natural systems that lend themselves to the study of environmental problems at the ecosystem level. This text, which contains reviewed papers from the conference, includes long-term studies of nutrient cycling in forested catchments, effects of anthropogenic action on streamwater chemistry, stable isotope studies for tracing biogeochemical processes, determination of the process rates and mathematical modelling of ecosystem behaviour and mass fluxes. This book is intended for research scientists and students of ecology, biology, hydrology and geochemistry as well as professionals in natural resources management.
2 153 kr
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This volume contains reviewed papers from BIOGEOMON, The Third International Symposium on Ecosystem Behaviour, held at Villanova University in June 1997 and attended by over 240 participants from 28 countries. Earlier BIOGEOMON meetings emphasized mostly geochemical research conducted in small watersheds. As is evident from this collection of papers, BIOGEOMON has broadened its scope considerably to include research conducted in much larger watersheds, often assessing landscape or regional patterns and processes. Major themes include acidification of soils and waters, biogeochemical implications of nitrogen and sulfur deposition, and gas fluxes from the land to the atmosphere. Collectively, the papers in this volume present a variety of approaches to biogeochemical research at the ecosystem level, including monitoring, field and laboratory manipulations, stable and radioisotopic tracers, modelling, and geographic information system analysis. This book should be of interest to researchers in biogeochemistry, ecosystem ecology, global change, and anthropogenic pollution, as well as to natural resource managers and policy specialists.
Del 2144 - Lecture Notes in Mathematics
Random Walks, Random Fields, and Disordered Systems
Häftad, Engelska, 2015
543 kr
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Focusing on the mathematics that lies at the intersection of probability theory, statistical physics, combinatorics and computer science, this volume collects together lecture notes on recent developments in the area. The common ground of these subjects is perhaps best described by the three terms in the title: Random Walks, Random Fields and Disordered Systems. The specific topics covered include a study of Branching Brownian Motion from the perspective of disordered (spin-glass) systems, a detailed analysis of weakly self-avoiding random walks in four spatial dimensions via methods of field theory and the renormalization group, a study of phase transitions in disordered discrete structures using a rigorous version of the cavity method, a survey of recent work on interacting polymers in the ballisticity regime and, finally, a treatise on two-dimensional loop-soup models and their connection to conformally invariant systems and the Gaussian Free Field. The notes are aimed at early graduate students with a modest background in probability and mathematical physics, although they could also be enjoyed by seasoned researchers interested in learning about recent advances in the above fields.
Inbunden, Tyska, 2021
765 kr
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2 153 kr
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This volume contains reviewed papers from BIOGEOMON, The Third International Symposium on Ecosystem Behavior, held at Villanova University in June 1997 and attended by over 240 participants from 28 countries. Earlier BIOGEOMON meetings emphasized mostly geochemical research conducted in small watersheds. As is evident from this collection of papers, BIOGEOMON has broadened its scope considerably to include research conducted in much larger watersheds, often assessing landscape or regional patterns and processes. Major themes include acidification of soils and waters, biogeochemical implications of nitrogen and sulfur deposition, and gas fluxes from the land to the atmosphere. Collectively, the papers in this volume present a variety of approaches to biogeochemical research at the ecosystem level, including monitoring, field and laboratory manipulations, stable and radioisotopic tracers, modeling, and geographic information system analyses. This book will be of interest to researchers in biogeochemistry, ecosystem ecology, global change, and anthropogenic pollution, as well as to natural resource managers and policy specialists.
1 080 kr
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This Special Issue of Water, Air and Soil Pollution offers original contributions from BIOGEOMON, an international symposium on ecosystem behavior and the evaluation of integrated monitoring of small catchments, held in Prague, Czech Republic, in September 1993. The meeting attracted nearly 200 scientists from 27 countries on five continents. BIOGEOMON was a loose continuation of another international meeting, GEOMON, which was held in Prague in 1987. Both sym posia provided a forum for the discussion of ideas on environmental problems in western and eastern Europe, with important contributions from the American continent. With the dramatic collapse of the iron curtain, it was our hope that more so than GEOMON, BIOGEOMON would provide opportunities for the free exchange of ideas, fostering the development of research collaborations between its participants. With international openness comes the increasing realization that every indus trialized nation has its own legacy of environmental degradation. Anthropogenic impacts differ in severity and scale; air and water transport of pollutants transform local impacts into regional and global ones, ignoring political boundaries and eco nomic differences. Environmental consequences of anthropogenic activities often are detectable at the ecosystem level. Thus, the challenge of ecosystem science, and to the individuals who practice it, is to develop a comprehensive understanding of ecosystem function in the past and at present, and to apply such understanding toward minimizing future insults to the local, regional, and global environment.