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Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1 957, starting its coverage of theses with the academic year 1955.

Ecology is still considered as a creditable (though rather "soft") scientific discipline by the former, whereas it is perceived as a new, non-conformist political philosophy by the latter.

After studying ring-chain tautomerism of keto ami des and related derivatives of functionalized carboxylic acids for more than ten years, the authors consider it useful to summarize available results on these prototropic equilibria.

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Epithelial cells are present in many different tissues in the body, and possess a diverse number of functional properties. Similar investigations may be done with epithelial cell cultures derived from other tissues, following the kidney cell culture paradigm.

The question of how to use police resources productively, par ticularly in this era of tight municipal budgets, is a major con cern for police chiefs and others responsible for crime control.

This book provides new ideas about how patients and their fami lies cope with serious health crises. Recent trends have sparked the formulation of useful concepts of coping skills and social resources and have empha sized the value of an active assertive role for patients in the pro cess of obtaining health care.

Since only about 60% of the session time was devoted to formal presentations, the discussions formed an equally important part of the workshop. The chairmen and discussion leaders - as well as the workshop participants themselves - brought forth lively and illuminating discussions for each session.

An international community of researchers is now flourishing in the area of cryptology-there was none half-a-dozen years ago.

This book contains the contributions of the participants to the International Symposium on Porphyrins in Tumor Phototherapy held in Bruzzano (Milano), Italy on May 26-28, 1983.

When behavior therapy was first applied to what would now be labeled an anxiety disorder, a simplistic theoretical model guided the treatment of a sim ple phobia. The concept of anxiety itself has undergone a differentiation to a level of complexity that poses problems for both the conceptualization and the treat ment of anxiety disorders.

Tests available for identifying mutagens or carcinogens range from relatively simple, rapid assays in prokaryotes and test systems utilizing mammalian cells in tissue culture to highly elaborate tests in intact animals.

In recent years, an ever-increasing amount of research has been conducted on the physico-chemical basis of the origin and evolution of life, or protobiology.

But 'Proceedings' are proverbially ephemeral material reflecting an array of solo performances, whereas this book is hopefully more like an orchestra's performance, of classical together with new material. Related to receptor methodo logy, receptor features and phenomena get due attention in the text.

The early embryo has emerged as the focal point for analysis of the regulation of gene expression for several reasons. The opportunity is now available to study the regulation of the expression of single genes in a vertical fashion--from the primary sequence of the gene to the tissues and organs which are the products of morphogenesis.

This issue contains the proceedings of the most recent Inter national Symposium on Brain Edema, the 5th in a series of confer ences starting 1965 in Vienna. Although brain edema occurs concomitantly in many pgtho10gica1 conditions of the brain, it has been suggested that its role is collateral only.

This book contains a collection of original research papers which were presented in honor of the Bordon Award recipient, Professor Eric Baer, on the occasion of the 55th Meeting of the American Chemical Society (Atlanta, Georgia, March, 1981).

'" This philosophy has re sulted in women refusing mammography for the detection of breast cancer even though this methodology is the most sensitive for detection of such cancers in the early, curable stage, and even though, at present, breast cancer is the leading cause of cancer deaths among women.

Psychopathology is the science of deviant behavior. Sex Roles and Psychopathology analyzes the extent to which cultural norms about the sexes, societal expectations and values about sex-typed behavior and sex differences, and profes sional biases influence the development, manifestation, and mainte nance of abnormal behavior among men and women.

JOSEPH MEITES The idea that the endocrine system is involved in aging processes is as old as the beginnings of endocrinology.

In a previous volume, Families as Learning Environments for Children, we presented a series of chapters that dealt with research programs on the role of families as learning environments for children.

It is our pleasure to introduce to the readers of Advances in Psychosomatic Medicine: I, the authors of 88 papers presented at the VIth World Congress of the International College of Psychosomatic Medicine in Montreal, September 13-18, 1981.

Laskin Biosciences Research Exxon Research and Engineering Company Linden, New Jersey I was contacted in the Fall of 1981 by Professors Martin Dworkin and Palmer Rogers, of the University of Minnesota and asked to participate in the orgnization of the 1983 conference in the series, "Interface Between Biology and Medicine".

The third international symposium on Critical Care and Pulmonary Medicine was held in Norwalk Hospital, Yale University School of Medicine in June 1981. My special thanks to Mr. Norman Brady, President of the Norwalk Hospital, for his generous hospitality and his untiring assistance during the three days of the symposium.