First Published in 1998. This important work looks at an alternative approach to resource production systems, taking the view that many environmental problems associated withconventional resource management are avoidable if we work with nature, instead of trying to dominate it. Jordan argues that achieving sustainability in production systems is best accomplished by encouraging a change in the relationship between humans and nature-from one of exploitation through control to one of sustainability through cooperation.
First Published in 1998. This important work looks at an alternative approach to resource production systems, taking the view that many environmental problems associated withconventional resource management are avoidable if we work with nature, instead of trying to dominate it. Jordan argues that achieving sustainability in production systems is best accomplished by encouraging a change in the relationship between humans and nature-from one of exploitation through control to one of sustainability through cooperation.
This work evaluates the merits of a widely-used approach to natural resource management, participatory action research (PAR), an approach to resource management that strives to link researchers with farmers and other local residents whose lives are effected by long-range conservation programmes. The authors begin the book with the history of PAR, and then use a variety of case studies that chronicle sustainable development efforts in Brazil. They evaluate the strengths and weaknesses of these efforts and suggest specific ways to improve on future PAR efforts.
Modern industrial agriculture is not sustainable because of its heavy reliance on petroleum, a non-renewable source of the energy used in farming, and because of pollution caused by petroleum products such as fertilizers and pesticides. A systems analysis of farming suggests that agriculture will be more sustainable when services of nature, such as nutrient recycling by soil micro-organisms and natural controls of insects, replace the services now provided by energy from petroleum. Examples are drawn from the Southeastern USA, but lessons learned can be applied worldwide.
Importance pf tropical forests; characteristics of tropical forests; classification of tropical forests; deforestation in the tropics; management of tropical forests; plantatios and agroforestry systems; approaches for implementing sustainable management techniques.
Survival of the fittest” is a tautology, because those that are “fit” are the ones that survive, but to survive, a species must be “fit”. Modern evolutionary theory avoids the problem by defining fitness as reproductive success, but the complexity of life that we see today could not have evolved based on selection that favors only reproductive ability. There is nothing inherent in reproductive success alone that could result in higher forms of life. Evolution from a Thermodynamic Perspective presents a non-circular definition of fitness and a thermodynamic definition of evolution. Fitness means maximization of power output, necessary to survive in a competitive world. Evolution is the “storage of entropy”. “Entropy storage” means that solar energy, instead of dissipating as heat in the Earth, is stored in the structure of living organisms and ecosystems. Part one explains this in terms comprehensible to a scientific audience beyond biophysicists and ecosystem modelers. Part two applies thermodynamic theory in non-esoteric language to sustainability of agriculture, and to conservation of endangered species. While natural systems are stabilized by feedback, agricultural systems remain in a mode of perpetual growth, pressured by balance of trade and by a swelling population. The constraints imposed by thermodynamic laws are being increasingly felt as economic expansion destabilizes resource systems on which expansion depends.
Annotation Now in a thoroughly-updated and expanded second edition, Wiley Encyclopedia of Food Science and Technology covers fundamental concepts and practical requirements in food science, as well as cutting-edge technological and industry information. The encyclopedia features A-to-Z coverage of all aspects of food science, including: the properties, analysis, and processing of foods; genetic engineering of new food products; and nutrition. In addition, nontechnical information is included, such as descriptions of selected scientific institutions, and research and development in government agencies. Like the first edition, this Second Edition will become the standard reference for food scientists, bioengineers, and biotechnologists. From reviews of the first edition: " ... fills a definite need in the food science and technology literature ... I have little doubt that this encyclopedia will become one of the classic works in this ever-growing subject."--Food and Chemistry
Organic materials with extraordinary magnetic properties promise a wide range of light, flexible, and inexpensive alternatives to familiar metal-based magnets. Individual organic molecules with high magnetic moments will be the foundation for design and fabrication of these materials. This book provides a systematic understanding of the structure and properties of organic magnetic molecules. After a summary of the phenomenon of magnetism at the molecular level, it presents a survey of the challenges to theoretical description and evaluation of the magnetic character of open-shell molecules, and an overview of recently developed methods and their successes and shortfalls. Several fields of application, including very strong organic molecular magnets and photo-magnetic switches, are surveyed. Finally, discussions on metal-based materials and simultaneously semiconducting and ferromagnetic extended systems and solids point the way toward future advances. The reader will find a comprehensive discourse on current understanding of magnetic molecules, a thorough survey of computational methods of characterizing known and imagined molecules, simple rules for design of larger magnetic systems, and a guide to opportunities for progress toward organic magnets.
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