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Over the past several decades serious work in philosophy has become almost wholly inaccessible to people who do not specialize in the subject. To be sure, the writings of Aristotle and Kant were never easy reading, and even relatively untechnical philosophers like Mill or Santayana de­ mand careful study if we are really to understand them. But during the last generation or two the situation has steadily become worse for readers who may want t...

Population change and population forecasts are receiving considerable attention from governmental planners and policy-makers, as well as from the private sector. Old patterns of population redistribution, industrial location, labor-force participation, household formation, and fertility are changing. The resulting uncertainty has increased interest in forecasting because mere extrapolations of past trends are proving inadequate. In the United ...

Buridan was a brilliant logician in an age of brilliant logicians, sensitive to formal and philosophical considerations. There is a need for critical editions and accurate translations of his works, for his philosophical voice speaks directly across the ages to problems of concern to analytic philosophers today. But his idiom is unfamiliar, so editions and trans­ lations alone will not bridge the gap of centuries. I have tried to make Buridan ...

Historically, scientists and laymen have regarded salinity as a hazar­ dous, detrimental phenomenon. This negative view was a principal reason for the lack of agricultural development of most arid and semi­ arid zones of the world where the major sources of water for biological production are saline. The late Hugo Boyko was probably the first scientist in recent times to challenge this commonly held, pessimistic view of salinity. His research ...

Although adenoviruses have been established for quite some time as one of the most pliable tools to study the molecular biology of mammalian cells, rapid progress continues to be made with this virus system. The adenoviral genome introduced into the nucleus of cells as a Trojan Horse, as it were, is now facili­ tating investigators to uncover details of cellular mechanisms. In this volume twelve chapters have been collected that summarize impo...

This book should be of interest to students and practitioners of materials science, production engineering and engineering design.

The polydiacetylenes are a class of polymers that are attrac­ ting increasing attention worldwide. There are many reasons for this interest one of the most important being the availability of many polydiacetylenes as macroscopic, high quality, single crystals. This fact was first reported in the pioneering work of Prof. G. Hegner on the solid-state polymerization of disub­ stituted diacetylenes in the late 1960s. Since then studies of the poly...

The Speech Situation is a term worn with age in the teaching of public speaking in America. That it is comprised of occasion, speaker, and topic is a gross oversimplification. It also includes challenge, anxiety, emotion, fear, responsibility, faults of memory, and instants of pride. Out of the circumstances arise an increase in heart rate, a change in blood pressure, an abnormal pattern of breathing, a noticeable build­ up in perspiration, an...

This book should be of interest to general science, physics and physical sciences courses.

This is the 11th of the Pediatric Nephrology series created to help us be in touch with developments which are relevant to the problems we face daily in clinical practice and the questions we ask and try to answer in clinical and experimental research. Like volume IX, this one focuses on one of the subgroups to which we are committed--the neonates' special fluid and electrolyte requirements. This volume has more on blood pressure and renal fun...

The behavior of the kidney in normal pregnancy, as well as in complicated pregnancy, is a very interesting, but still in many ways an unknown topic in renal medicine. It is undoubtedly difficult to determine, even in normal women, the behavior of renal hemodynamics throughout gestation, since the fear of impairing a new life (i.e., the fetus's life) will limit, for ethical reasons, the use or the frequent repetition of diagnostic tests on the ...

The past twenty years have witnessed significant advances in the treatment of cancer by surgery and radiation therapy. Gains with cytotoxic chemotherapy have been much more modest. Of the approximately 900, 000 newly diagnosed cases of cancer each year, 50010 result in death of the patient. The primary cause of these deaths is metastasis. Although the term metastasis was first coined by Recamier in 1829, only in the past ten years have there b...

Estuaries are highly dynamic systems subject to changes occurring over a spectrum of time scales ranging from very short periods (e. g. over a tidal cycle) to geologic time scales. The nature of an estuary reflects complex responses to many driving forces, each having a characteristic frequency (or frequencies) of change. For example, freshwater inflow to estuaries varies daily in response to short-term events such as storms, seasonally, and b...

Adriaan Blaauw, Emeritus Professor of Astronomy at the Universities of Groningen and Leiden, former Directo.r of the Kapteyn Laboratory and of the European Southern Observatory, celebrated his 70th anniversary on 12 April 1984. To mark this event, an international Symposium was con­ vened on the subject "Birth and Evolution of Massive Stars and Stellar Groups", a subject which has played the leading role in Blaauw's scien­ tific research. The ...

Since the Second World War interest in the active by Italian geophysicists, studies of ground deform­ volcano Mount Etna, in Sicily, has been steadily ation by British and Italian groups, measurements increasing. This interest has not been restricted of microgravity changes particularly by a British to Italy, and scientists from Belgium, France, group, endeavours to improve analytical tech­ Germany, the United States and the United King­ nique...

viii The experimental research presented at the conference and reported here deals mainly with the visible wavelength region and slight extensions to either side (roughly from 150 nrn to 1000 nrn, 8. 3 eV to 1. 2 eV). A single exception was that dealing with a description of spin-resolved photoelectron spectroscopy at energies up to 40 eV (31 nm). This work was done using circularly polarized radiation emitted above and below the plane of the ...

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One of the most frequent requests I receive from graduate students is for references on how to formulate a complex clinical case. Typically, after reading the recommended materials, the student returns to request more detailed accounts of how clinicians "think" about particular cases. The general lack of such materials in the behavior therapy Iiterature led to the formation of the present volume. Throughout much of the behavior therapy literat...

...the volume contains original and stimulating contributions to quantitative biostratigraphy and lithostratigraphy by four authors who are foremost in this branch of science and have pioneered its application. I agree with this assessment, the book is clearly the place to start for those interested in becoming conversant with modern techniques of stratigraphy analysis.' Palaeogeography, Palaeoclimatology, Palaeoecology, 58 (1987)

The word Polyethylene was probably first pronounced in a lecture which M. P. E. Berthelot delivered on April , 27, 1863 to the Chemical Society in Paris, reporting on the "polymerization" of various simple organic compounds (1). Much later this work appeared twice in the literature before the classical ICI breakthrough in the 1930's which is so colorfully described in Ballard's lecture. Once it came up at the end of the last century when H. vo...