In his paper “Has Austin Refuted the Sense-Datum Theory?” A. J. Ayer contends that the argument from illusion calls attention to perspectival distortion, perceptual misidentification and elusive perceptual belief only in order to establish the possibility of perceptual error. Pointing to our occasional perceptual failures reminds us that perceptual error is always logically possible—that any particular perceptual belief to the effect that one is perceiving a physical surface could be mistaken. This in turn is thought by Ayer to show that (...) the ordinary belief that we perceive physical surfaces requires qualification—along lines urged by sense-datum philosophers—to the effect that even in those situations properly described for non-philosophical purposes as perceptions of physical surfaces it cannot be physical surfaces that are literally present to one's senses. Ayer believes that this can be established, for any given case, by the possibility of perceptual error alone. (shrink)

Spanish influence in the New World was particularly acute in the areas of medicine and medical education. From the time of Columbus forward prominent medical experts journeyed to Latin America establishing medical schools and research centers. This essay chronicles the history of Latin America with a strong focus on the physicians and scientists who brought modern scientific medicine, as it wag then known in Western Europe, to the Americas.

The article is a critique of malcolm and the wittgensteinians and their criticisms of russell which the author finds to be "prosecuting russell on false charges." (staff).

JOHN STUART MILL by R. J. Halliday. (Political Thinkers, 4.) Allen & Unwin, 1976. 151 pp. £5.95 cloth, £2.95 paper.

The article by Academician P. L. Kapitsa published below is devoted to problems of the utmost importance, which have come to be termed "global." The Twenty - fifth Congress of the CPSU pointed to the need to study them scientifically and solve them practically, emphasizing that they touch on the interests of humanity as a whole and will exercise an increasingly marked influence on the lives of every people and on the entire system of international relations. In their social philosophical (...) aspects they have been discussed more than once in the pages of Voprosy filosofii. Discussions of these problems took place at the round tables entitled "Man and His Environment" [See translation in our Fall-Winter 1974 number. — Ed., Soviet Studies in Philosophy], "Social Philosophy Problems of Demography," and "Science and Global Problems of Our Time," and numerous articles have been published in such series as "Science and Social Progress," "The Peace Program and the Dialectics of International Relations" [See translation in our Fall 1975 issue. — Ed., Soviet Studies in Philosophy], and "Man — Society — Nature." The editors of the journal, guided by the directives of the Twenty-fifth Party Congress on the need for further investigation of such global problems of our time, are inclined to continue the discussion of them in the future; another round table devoted to these problems is being planned now. The article by Academician P. L. Kapitsa, it seems to us, will provide fruitful stimuli for discussion at this round table, which will probably be published in several installments. As the author himself emphasizes, certain positions in his article are debatable and require discussion. The journal invites philosophers, demographers, economists, and representatives of the natural sciences to take part in discussions of the problems posed. Certain questions examined in Kapitsa's article are also treated in articles by Howard L. Parsons, A. D. Ado, and Iu. A. Kirshin published in this issue of the journal. (shrink)

Originally published in 1949. Understanding the questions is the major problem when beginning philosophy. This book does not attempt to provide the answers, but defines the questions and shows by example how they should be tackled. Subjects treated include the nature of the objects of thought and judgment; truth and error in belief; perception and knowledge of the material world; the status and function of memory.

Note by the Editor of Voprosy filosofii: The presidium of the USSR Academy of Sciences has decided to hold, in Moscow in December 1980, the Third USSR Conference on Philosophical Problems of Contemporary Natural Science, dedicated to the one hundred and tenth anniversary of the birth of V. I. Lenin, and has established an organizing committee headed by P. N. Fedoseev, vice-president of the Academy, to prepare and conduct the conference.

Petr Leonidovich Kapitsa, world-renowned physicist, often turns to themes that at first glance seem far removed from the sphere of his basic scientific interests. He is the author of numerous articles and papers on problems of the development of science and the organization of scientific work . Many have read with interest his remarkable recollections of Rutherford, published in Novy mir.

From the editors of Voprosy filosofii: The editors publish herewith the address by the ranking Soviet physicist Academician Petr Leonidovich Kapitsa, Director of the Institute of Physical Problems of the USSR Academy of Sciences, at the symposium, organized by UNESCO and held in Ulm, West Germany, in 1978, on the hundredth anniversary of the birth of Albert Einstein. The speech was graciously made available to us by Kapitsa. In it the Academician gives his principal attention to the global problems that (...) have interested him of late, on which he has already expressed himself in the pages of our journal . In the form and manner in which its problems are set forth, this address is designed chiefly for the scientists of Western countries present at the Ulm symposium. (shrink)

The heme‐containing cytochromes P‐450 are a ubiquitous family of monooxygenase isozymes responsible for the oxidative metabolism of a wide variety of endogenous as well as exogenous compounds. Many of the compounds metabolized by this enzyme system are effectively detoxified and converted to derivatives more easily eliminated from the organism. However, some compounds can be activated to reactive species capable of eliciting a cascade of toxic lesions, including cancer. Since its discovery nearly 30 years ago, the cytochrome P‐450 enzyme system has (...) received a great deal of attention, particularly in the areas of their mechanisms of metabolism, range of substrate specificity, the purification and characterization of the multiple isozymes and, more recently, the regulation of expression of specific forms. This review will discuss current notions concerning the expression of at least one cytochrome P‐450 isozyme and future directions that should lead to a more complete understanding of cytochrome P‐450 gene expression in general, particularly as it impacts upon biochemical pharmacology. (shrink)

In Britain doctors and others concerned with the treatment of offenders in prison may consult the Butler Report (see Focus, pp 157) and specialist journals, but these sources are concerned with the system in Britain only. In America the situation is different, both in organization and in certain attitudes. Dr Peter L Sissons has therefore provided a companion article to that of Dr Paul Bowden (page 163) describing the various medical issues in prisons. The main difference between the treatment of (...) offenders in prisons in America and in Britain lies in the nature of the federal system which means that each state may operate a different system in a variety of prisons and prison medical services are as various. Nationally, the prison systems are 'structured to treat and cure the offender'. Therefore it follows that the prison medical officer is only one of the professionals concerned with this 'cure' of the offender. This principle also applies to any form of research: medical research in prisons is part of a programme which covers a wide field of social and judicial research. The prison medical officer (where there is one) has of course to look after sick prisoners, and the American idea of 'cure' is also expressed in the need for more corrective surgery where, for example, it is necessary to remove physical impediments to social rehabilitation. But a doctor is only found on the staff of those institutions which are large: in the smaller prisons there may be only first-aid facilities, and no specially appointed doctor in the community. Moreover medicines are often dispensed by medical auxiliaries who are sometimes prisoners themselves. Finally, in America prisoners are regularly invited to volunteer as subjects for medical and social research for which they are paid. In short, although it is hoped to 'cure' a prisoner he is a criminal first and a patient second. (shrink)