This book contains the contributions to an European symposium on "e;Trace Elements in Environmental History"e;, held from June 24th to 26th at GCittingen, FRG.
In the summer of 1988, under NATO sponsorship, approximately 80 scientists lived and worked together in Plymouth for two weeks to evaluate the ecological role of protozoa in the sea.
It is apparent that wilt diseases continue to be a major problem in crop production because of the number of crops affected, the number and genetic variability of pathogens involved, and their widespread occurrence throughout tropical and temperate regions under a variety of cropping systems.
In recent years, tropical forests have received more attention and have been the subject of greater environmental concern than any other kind of vegetation.
Honeybees are as small as flies or as large as hornets, nesting in nar- row cavities of trees and rocks or in the open on large limbs of trees 30 m above ground.
This monograph has been written in the hope that it will prove of value to medical students and clinicians, to Honours undergradu- ates in appropriate branches of the natural sciences, and to repro- ductive biologists in general.
th th On June 17 and 18 1987 the fourth workshop on "e;Azospi- rillum: Genetics, Physiology, Ecology"e; took place at the Uni ver- sity of Bayreuth, West Germany, organized by the Genetics depart- ment.
At last geochemists are offered one comprehensive reference book which gives the Eh-pH diagrams for 75 elements found in the earth's surface environment, including transuranic and other radioactive species.
Low temperature represents, together with drought and salt stress, one of the most important environmental constraints limiting the pro- ductivity and the distribution of plants on the Earth.
This volume comprises the lectures of the speakers at the NATO Advanced Research Workshop held at the Congress Centre The Flevohof at Biddinghuizen, The Netherlands, May 11-16, 1986.
"e;Instead of dirt and poison we have rather chosen to fill our hives with honey and wax; thus furnisning mankind with the two noblest of things, which are sweetness and light"e;.
As a result of the green revolution, the use of yield-increasing inputs such as fer- tilizer and pesticides became a matter of course in irrigated rice farming in Southeast Asia.
There have been many significant microbiological, biochemical and technological advances made in the understanding and implementation of anaerobic digestion processes with respect to industrial and domestic wastewater treatment.
Oral birth in the Australian gastric brooding frog Rheobatrachus sUus 2 Preface I have deliberately chosen the title picture to the preface, which shows the oral birth of a young gastric brooding frog (Rheobatrachus situs), to draw the reader's attention to the preface since I wish to explain why the book was written and illustrated in the way it now appears.
By the end of the last century, the only region in all of Europe where the natural vegetation remained untouched over large expanses was Eastern Europe.
The Plant Root and the Rhizosphere was a major topical feature of the first International Symposium on Factors Determining the Behavior of Plant Pathogens in Soil held at the University of California, Berkeley in 1963.
Rapidly increasing interest in the problems of air pollution and source-receptor relationships has led to a significant expansion of knowledge in the field of atmospheric chemistry.
Biotechnology has come to a stage where, by replacing some of the age- old practices of breeding, it can produce novel and improved plants and animals that can better serve human beings and their purposes.
Exposure to polychlorinated dibenzodioxins and -furanes at very low concentrations is of particular interest with respect to possible human health risks.
On May 25,1978, the Commission on Toxicology ofthe Division of Clinical Chemistry of the International Union of Pure and Applied Chemistry (IUPAC) established its Subcommittee on Environmental and Occupational Toxicology of Cadmium following aseries of Commission meetings in Kristiansand, Norway.
Report, the editors replaced the term "e;speciation"e; wherever it occurred by "e;identification and quantification,"e; or "e;description of abundance,"e; or "e;reactivity,"e; or "e;transformation"e; of a chemical species, according to whichever one of the four meanings the author had evidently meant to convey.
It will be a long time before the quality of this profusely illustrated book is overtaken and the present spate of books on the subject of obstetric ultrasound may, as a result, suffer a numerical set-back - especially with translation into English which will "e;deliver the milk on everyone's doorstep"e;.
A distinction between contamination and pollution is useful when we wish to consider what strategies to adopt in researching the impact of anthropogenic activities on the marine environment.
