As forests decline in temperate and tropical climates, highly-developed countries and those striving for greater economic and social benefits are beginning to utilize marginal forests of high-latitude and mountainous regions for resources to satisfy human needs. The benefits of marginal forests range from purely aesthetic to providing resources for producing many goods and services demanded by a growing world population. Increased demands for forest resources and amenities and recent warming of high- latitude climates have generated interest in reforestation and afforestation of marginal...

Biological markers (biomarkers) are useful tools for understanding the nature and extent of human exposure and risk from environmental toxicants. Biomarkers are classified into three basic categories: exposure, effect, or susceptibility. A marker of exposure is the product of the interaction between a target cell or molecule and a foreign substance (NAS, 1989). These markers can be used to determine the biologically effective dose necessary to elicit a particular physiological change in an organism. A marker of effect is a biochemical or physiological change in an organism that can predict...

During the last ZO years great progress has been achieved in our understanding of both earth history and vertebrate evolution. The result is that climatic/tectonic events in earth history can now be placed in a more precise and global time frame, that permit their evaluation as abiotic causal factors which might trigger extinction and dispersal events in vertebrate history. Great strides have also been made in genetics and cell biology, providing new insight into phylogenetic relationships among many vertebrates. These new data, along with data on chronologie resolution of earth history,...

This volume is a summary of material presented in the course given in the International School of Phannacology on "Drug Epidemiology and Post-Marketing Surveillance" between September 27 and October 8, 1990, at the "Ettore Majorana Center for Scientific Culture" in Erice, Sicily. The course, which was a NATO Advanced Study Institute, included lectures and workshops presented by experts in the new field of phannacoepidemiology. The material covered includes various approaches to spontaneous reporting of adverse drug reactions, including aggregate approaches, such as those used in France, and...

This book is a record of the proceedings of a NATO Advanced Study Institute on "Transfer of Cell Constituents into Eukaryotic Cells" held September 2-14, 1979, at Sintra-Estoril, Portugal. Transfer of cell constituents into living cells can be brought about by a variety of ways, namely by microinjection with micropi pettes (small somatic cells, oocytes and plant cells), by microin jection using fusion methods (red cell mediated microinjection, li posome mediated transfer, transfer of membrane components, cell hy bridization and fusion of cell fragments)and by means of uptake (DNA and...

The first meeting on biosonar that I had the opportunity to attend was held in 1978 on the Island of Jersey in the English Channel. That meeting, organized by Professor R.G. Busne1 and Dr. Jim Fish, was my introduction to an exciting and varied group of hard-working and dedicated scientists studying animal echolocation. They are, by nature, a very diverse group. They tend to publish in different journals and rarely interact despite the fact that they all work on echolocation. When they do interact as a group, as they did in Frascati Italy in 1966, in Jersey i 1978, and during the meeting...

Major skin diseases, including acne, psoriasis and eczcma, affect the majority of the population at some time in their lives. In general, these diseases are physically and psychologically disfiguring for the sufferers; furthermore, by their very chronic nature skin diseases, unlike most other disease processes, present both acute and chronic therapy problems. In addition, the chronic nature of these diseases can present certain economic problems. Firstly, chronic therapy is becoming increasingly expensive and secondly, patients adhering to a strict treatment regimen will frequently be absent...

MATERIALS AND METHODS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 330 RESULTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331 DISCUSSION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 333 REFERENCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335 SEcnON VI: THE MARATEA CONFERENCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 337 PHOTO LAYOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

This volume contains the contributions from the speakers at the NATO Advanced Research Workshop on "Structure of the Photosynthetic Bacterial Reaction Center X-ray Crystallography and Optical Spectroscopy with Polarized Light" which was held at the "Maison d'Hotes" of the Centre d'Etudes Nucleaires de Cadarache in the South of France, 20-25 September, 1987. This meeting continued in the spirit of a previous workshop which took place in Feldafing (FRG), March 1985. Photosynthetic reaction centers are intrinsic membrane proteins which, by performing a photoinduced transmembrane charge...

This volume contains the lectures given at the NATO Advanced Study Institute on "Biophysics of Photoreceptors and Photomovements in Microorganisms" held in Tir- renia (Pisa), Italy, in September 1990. The Institute was sponsored and mainly funded by the Scientific Affairs Division of NATO; the Physical Science Committee and the Institute of Biophysics of National Research Council of Italy also supported the School and substantially contributed to its success. It is our pleasant duty to thank these institu- tions. Scientists from very different backgrounds contributed to the understanding of...