82 Ergebnisse - Zeige 61 von 80.

When Lovelock published his 'Gaia', it was for many people quite a relief. We would not be able to destroy life on earth. Lovelock illustrated this argument with a wealth of mechanistic feedback processes, as we know them to occur in ecosystems. These feedback processes would, somehow, lead the earth as a whole into a new equilibrium. An equilibrium with life within, be it in an entirely changed environment. This is, indeed, let us be earnest:...

A major concern among ecologists in and outside the ASEAN region is the degradation of the environment, and the overexploitation of freshwater and marine resources. There is as yet no indication that freshwater and marine resources are being managed on a sustainable basis, and loss of wetlands, whether freshwater swamps or mangrove swamps, is a major problem in the ASEAN region. Reclamation of mangrove swamps for aquaculture and agriculture se...

Because the theory of equations with delay terms occurs in a variety of contexts, it is important to provide a framework, whenever possible, to handle as many cases as possible simultaneously so as to bring out a better insight and understanding of the subtle differences of the various equations with delays. Furthermore, such a unified theory would avoid duplication and expose open questions that are significant for future research. It is in...

Keine Beschreibung.

Reprint of the Oxford University Press edition of 1930, with a long new introduction by Clark Kerr. Annotation copyright Book News, Inc. Portland, Or.

Keine Beschreibung.

This book, resulting from an initiative of the Organization for Economic Co-operation and Development, provides the mathematical background to model plant and microbial growth in soil. Written by a team of international experts, this book will appeal to a wide range of biologists, ecologists and regulators interested in the environmental consequences of biotechnology.

Increasing emphasis on safety, productivity and quality control has provided an impetus to research on better methodologies for fault diagnosis, modeling, identification, control and optimization ofchemical process systems. One of the biggest challenges facing the research community is the processing of raw sensordata into meaningful information. Wavelet analysis is an emerging field of mathematics that has provided new tools and algorithms su...

The aim of this volume is to reinforce the interaction between the three main branches (abstract, convex and computational) of the theory of polytopes. The articles include contributions from many of the leading experts in the field, and their topics of concern are expositions of recent results and in-depth analyses of the development (past and future) of the subject. The subject matter of the book ranges from algorithms for assignment and t...

In last years increasing attention has been again devoted to interpretations of quantum theory. In the same time interesting quantum optical experiments have been performed using nonlinear optical processes, in particular frequency down conversion, which provided new information about nature of a photon on the basis of interference and correlation (coincidence) phenomena. Such single-photon and twin-photon effects of quantum optics provide new...

This book will give an overview of insect ovaries, showing the diversities and the common traits in egg growth processes. The idea to write this book developed while looking at the flood of information which appeared in the early 1980s on early pattern formation in Drosophila embryos. At this time a significant breakthrough was made in studies of this little fly, combining molecular biological methods with classical and molecular genetics. The...

The most salient feature of the infor­ last four chapters of the book evaluate the mation provided by nuclear medicine is its information from an analytical and pathophysiological and functional charac­ statistical point of view. This approach is ter. For adequate experimental or clinical required for correct decision-making. interpretation, such information should This book is therefore the result of necessarily be interpreted alongside the a...

It appears that we live in an age of disasters: the mighty Missis­ sippi and Missouri flood millions of acres, earthquakes hit Tokyo and California, airplanes crash due to mechanical failure and the seemingly ever increasing wind speeds make the storms more and more frightening. While all these may seem to be unexpected phenomena to the man on the street, they are actually happening according to well defined rules of science known as extreme v...

Over the past 20 years the costs of natural disasters have escalated significantly. The lives of over 800 million people have been disrupted and the number of catastrophes has nearly quadrupled. At present, the increasing global threat of natural disasters, in spite of our increased knowledge, is ominous. With the growth in world population, the increasing of resources in newly developing areas, and the increasing cost and sophistication of en...

The Dictionary contains the names of nearly 2500 plant species, in some cases including subspecies and varieties. Tropical crops from all parts of the world receive the same attention as those from the temperate zone. Common names are given not only in English, French, German, Portuguese and Spanish but also in many other languages, where such names are used in the technical literature. `Agronomic plants' comprise not only the agricultural a...

This thirteenth volume in the series addresses an increasingly salient worldwide research, design, and policy issue-women and physical environments. We live in an era of worldwide social change. Some nation-states are fracturing or disintegrating, migrations are resulting from political up­ heavals and economic opportunities, some ethnic and national animosi­ ties are resurfacing, and global and national economic systems are under stress. Furt...

Throughout his several tours of Vietnam, Dennis Foley served with America's finest warriors -- men like David Hackworth, the nation's most decorated living soldier, and Jim Gardner, who was awarded the Medal of Honor for sacrificing his life so that his men might live. Now, in a tough, clear-eyed account, he recaptures the raw courage and sacrifice of American soldiers fighting a savage and desperate battle for survival.

With the publication of these proceedings from the Second Drug Discovery and Development Symposium, this forum has become the main mechanism for bringing together the principal groups involved in both discovering and developing new approaches to the treatment of cancer. This Second Symposium emphasized the types of materials being discovered and their therapeutic activity. This is especially evident in the natural product discovery programs, w...

The use of tubular, or as it is often known, flux-cored wire has grown dramatically in the last thirty years. It is a versatile and productive weld material with wide applications. Yet this book is the first to provide fabricators with a comprehensive and unvarnished account of what tubular wires can do and how they do it. Based on the author's fifteen years' experience of developing and applying tubular wires, it brings together information n...

These poems explore dimensions of secular and sacred love. The author is a writer, performance poet, singer/songwriter and storyteller and has won numerous awards for her poetry, as well as for her critical writing.