Critical Threshold

Critical Threshold PDF Author: Brian Stableford
Publisher: Wildside Press LLC
ISBN: 1434435571
Category : Fiction
Languages : en
Pages : 174

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Book Description
They call them the “rat-catchers.” They’re the crew of the spaceship Daedalus, which an economically destitute Earth has dispatched on a mission to re-establish contact with its far-flung, long-lost colonies in space. Alex Alexander, the ship’s biologist, together with his staff, must help solve the mysteries of human and alien ecosystems that he encounters light-years from home. Dendra is a stable world, covered by a huge, unchanging forest—except that nothing living can really be free of change. The planet has no seasons, but its animal life still undergoes life-cycles involving birth, maturation, metamorphosis, and death. The Earth colony sent to tame the world has failed, at least in the terms expected of it, and seems beyond redemption; but the crew of the Daedalus still has to find out exactly why and how the program has gone wrong. Provided, of course, that they can survive the investigation itself!

Critical Threshold

Critical Threshold PDF Author: Brian Stableford
Publisher: Wildside Press LLC
ISBN: 1434435571
Category : Fiction
Languages : en
Pages : 174

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Book Description
They call them the “rat-catchers.” They’re the crew of the spaceship Daedalus, which an economically destitute Earth has dispatched on a mission to re-establish contact with its far-flung, long-lost colonies in space. Alex Alexander, the ship’s biologist, together with his staff, must help solve the mysteries of human and alien ecosystems that he encounters light-years from home. Dendra is a stable world, covered by a huge, unchanging forest—except that nothing living can really be free of change. The planet has no seasons, but its animal life still undergoes life-cycles involving birth, maturation, metamorphosis, and death. The Earth colony sent to tame the world has failed, at least in the terms expected of it, and seems beyond redemption; but the crew of the Daedalus still has to find out exactly why and how the program has gone wrong. Provided, of course, that they can survive the investigation itself!

Approaches for Estimating Critical Loads of Nitrogen and Sulfur Deposition for Forest Ecosystems on U.S. Federal Lands

Approaches for Estimating Critical Loads of Nitrogen and Sulfur Deposition for Forest Ecosystems on U.S. Federal Lands PDF Author: Linda H. Pardo
Publisher:
ISBN:
Category : Atmospheric deposition
Languages : en
Pages : 32

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Book Description
Projected emissions of sulfur and nitrogen are expected to have continuing negative impacts on forests, in spite of reductions in sulfur emissions as a result of SO2 control programs. Sulfur and nitrogen emissions present serious long-term threats to forest health and productivity in the United States. This report is intended to explain the differences in approaches for calculating critical loads for forest ecosystems in Europe, Canada, and the United States; it is directed to air quality regulators and Federal Land Managers (FLMs) in the United States, and addresses concerns particular to U.S. Federal lands. The paper describes the basic mass balance approach for calculating critical loads, presents the various critical thresholds, and explains the assumptions inherent in the calculation and data selection procedure. The input necessary from FLMs in the process of estimating the critical load is described.

The Temporalization of Time

The Temporalization of Time PDF Author: Mike Sandbothe
Publisher: Rowman & Littlefield
ISBN: 9780742512900
Category : Philosophy
Languages : en
Pages : 142

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Book Description
This book deals with the philosopher Martin Heidegger and the chemo-physicist Ilya Prigogine, two prominent advocates of pioneering time concepts in the 20th century. Mike Sandbothe provides a trans-disciplinary introduction to modern debate on the problem of time and also suggests how the basic tendencies in this debate might be pragmatically interlinked.

Asymptotics

Asymptotics PDF Author: Eric Alexander Cator
Publisher: IMS
ISBN: 9780940600713
Category : Mathematics
Languages : en
Pages : 268

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Book Description


Essentials of Landscape Ecology

Essentials of Landscape Ecology PDF Author: Kimberly A. With
Publisher:
ISBN: 0198838387
Category : Science
Languages : en
Pages : 654

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Book Description
Presents the principles, theory, methods, and applications of landscape ecology and is supplemented by numerous examples and case studies from a variety of systems.

Systems and Models

Systems and Models PDF Author: Hartmut Bossel
Publisher: BoD – Books on Demand
ISBN: 3833481218
Category : Science
Languages : en
Pages : 374

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Book Description
A multitude of complex systems and actors pursuing their own agenda shape the dynamics of our world. Better understanding of their actions and interactions is crucial, and can be achieved by a profound knowledge of systems and their properties, and their representation in models allowing simulation of probable behavior. Drawing on his extensive research and teaching experience in modeling and simulation of a wide range of systems - from engineering to social systems and ecosystems - the author presents the fundamental concepts and approaches for understanding and modeling the complex systems shaping the dynamics of our world. The book applies state space analysis and system dynamics to deal with the dynamic processes of "causal systems," discusses information processing approaches for modeling decision processes of "actors" and "agents," and uses aspects of the coevolutionary development of systems in their environment to deal with normative orientation, ethics, and evaluation of policies and long-term development. The concepts are applied in particular to the issue of sustainable development of human society in an evolving world. The book is complemented by a survey of system topics and of models from many fields, and by an extensive bibliography on the many systems-related subjects covered. Hartmut Bossel is Professor Emeritus of environmental systems analysis. He taught for many years at the University of California in Santa Barbara and the University of Kassel, Germany, where he was director of the Center for Environmental Systems Research until his retirement. He holds an engineering degree from the Technical University of Darmstadt, and a Ph.D. degree from the University of California at Berkeley. With a background in engineering, systems science, and mathematical modeling, he has led many research projects and future studies in different countries, developing computer simulation models and decision support systems in the areas of energy supply policy, global dynamics, orientation of behavior, agricultural policy, and forest dynamics and management. He has written numerous books on modeling and simulation of dynamic systems, social change and future paths, and has published widely in the scientific literature in several fields. Bossel is author of a System Zoo containing over one hundred simulation models of diverse systems.

Innovations for Community Services

Innovations for Community Services PDF Author: Udo R. Krieger
Publisher: Springer Nature
ISBN: 3030750043
Category : Computers
Languages : en
Pages : 268

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Book Description
This book constitutes the refereed proceedings of the 21st International Conference on Innovations for Community Services, I4CS 2021, held in Bamberg, Germany, in May 2021 as a hybrid event. The 14 full papers and 2 short papers presented in this volume were carefully reviewed and selected from 43 submissions. One short invited paper is also included. The papers focus on topics such as services for critical infrastructure; network architecture for communities; applications and services supporting work and life; community data and visualization; technology empowers industry processes; and future community support.

Algorithms - ESA '93

Algorithms - ESA '93 PDF Author: Thomas Lengauer
Publisher: Springer Science & Business Media
ISBN: 9783540572732
Category : Computers
Languages : en
Pages : 434

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Book Description
Symposium on Algorithms (ESA '93), held in Bad Honnef, near Boon, in Germany, September 30 - October 2, 1993. The symposium is intended to launchan annual series of international conferences, held in early fall, covering the field of algorithms. Within the scope of the symposium lies all research on algorithms, theoretical as well as applied, that is carried out in the fields of computer science and discrete applied mathematics. The symposium aims to cater to both of these research communities and to intensify the exchange between them. The volume contains 35 contributed papers selected from 101 proposals submitted in response to the call for papers, as well as three invited lectures: "Evolution of an algorithm" by Michael Paterson, "Complexity of disjoint paths problems in planar graphs" by Alexander Schrijver, and "Sequence comparison and statistical significance in molecular biology" by Michael S. Waterman.

Invasion Dynamics

Invasion Dynamics PDF Author: Cang Hui
Publisher: Oxford University Press
ISBN: 0191062537
Category : Science
Languages : en
Pages : 607

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Book Description
Humans have moved organisms around the world for centuries but it is only relatively recently that invasion ecology has grown into a mainstream research field. This book examines both the spread and impact dynamics of invasive species, placing the science of invasion biology on a new, more rigorous, theoretical footing, and proposing a concept of adaptive networks as the foundation for future research. Biological invasions are considered not as simple actions of invaders and reactions of invaded ecosystems, but as co-evolving complex adaptive systems with emergent features of network complexity and invasibility. Invasion Dynamics focuses on the ecology of invasive species and their impacts in recipient social-ecological systems. It discusses not only key advances and challenges within the traditional domain of invasion ecology, but introduces approaches, concepts, and insights from many other disciplines such as complexity science, systems science, and ecology more broadly. It will be of great value to invasion biologists analyzing spread and/or impact dynamics as well as other ecologists interested in spread processes or habitat management.

NASA Conference Publication

NASA Conference Publication PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 626

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Book Description