"A critical study of the interdependence of philosophy as critical theory and man as a free individual."--T.p.

The phenomenon of probability backflow, previously quantified for a free nonrelativistic particle, is considered for a free particle obeying Dirac's equation. It is shown that probability backflow can occur in the opposite direction to the momentum; that is to say, there exist positive-energy states in which the particle certainly has a positive momentum in a given direction, but for which the component of the probability flux vector in that direction is negative. It is shown that the maximum possible amount of (...) probability that can flow “backwards,” over a given time interval of duration T, depends on the dimensionless parameter ε = (4ℏ/mc2T)1/2, where m is the mass of the particle and c is the speed of light. At ε = 0, the nonrelativistic value of approximately 0.039 for this maximum is recovered. Numerical studies suggest that the maximum decreases monotonically as ε increases from 0, and show that it depends on the size of m, ℏ, and T, unlike the nonrelativistic case. (shrink)

All-encompassing text examines every aspect of coma from neurochemistry, monitoring, and treatments to prognostic factors.

In recent years, the pages of our journal have carried a number of discussion articles dealing primarily with one question: the essence of the concept of "ethical category" and the concrete place that each ethical category should occupy in the socio-cultural complex denoted by the terms: morality, morals, ethics. The need for discussion of such questions in our scholarly literature on ethics has long been present. The immediate impetus for opening the discussion was publication of L. M. Arkhangel'skii's interesting and (...) significant monograph, The Categories of Marxist-Leninist Ethics [Kategorii marksistsko-leninskoi etiki], and his article "The Essence of Ethical Categories" [Sushchnost' eticheskikh kategorii], in Filosofskie nauki, 1961, No. 3. These writings indisputably represent a step forward in the study of a number of specific ethical categories. However, both in Arkhangel'skii's definition of the concept of "ethical category" and in his interpretation of that definition, there are, in the opinion of a number of participants in the discussion, spots that are weak both in terms of science and of logic. Arkhangel'skii understands ethical categories as "the principal key concepts of ehtical theory, reflecting the fundamental characteristics of morality in general , constituting social reflection of objectively operative concrete historical criteria of moral evaluation , as well as of requirements presented with respect to moral obligations , moral responsibility , dignity , and moral satisfaction , the content of which is determined by the principles of a given morality". (shrink)

I have enjoyed my six years as editor of this journal. I was pleased to be able to bring the journal to Purdue University Press and learn how to produce a first-rate academic journal. From the early days of choosing a cover design, to supervising my graduate assistant Jiwon Kim as she expertly sought indexing services, to acquiring an ISSN number, to being lucky to convince David Granger to become the book review editor and, with the next issue, editor, I (...) have been fortunate to work with excellent colleagues. I particularly want to thank the staff at Purdue University Press, especially its former director, Thomas Bacher, who agreed to publish the journal in 2004. Tom later moved the management of the journal's .. (shrink)

On Roger Bacon's life and works, by A. G. Little.--Der einfluss des Robert Grosseteste auf die wissenschaftliche richtung des Roger Bacon, von Ludwig Baur.--La place de Roger Bacon parmi les philosophes du XIIIe siècle, par François Picavet.--Roger Bacon and the Latin vulgate, by Francis Aidan, cardinal Gasquet.--Roger Bacon and philology, by S. A. Hirsch.--The place of Roger Bacon in the history of mathematics, by David Eugene Smith.--Roger Bacon und seine verdienste um die optik, von Eilhard Wiedemann.--Roger Bacons lehre von der (...) sinnlichen spezies und vom seḣvorgange, von Sebastian Vogl.--Roger Bacons art des wissenschaftlichen arbeitens dargestellt nach seiner schrift De speculis, von J. Würschmidt.--Roger Bacon et l'horreur du vide, par Pierre Duhem.--Roger Bacon, his relations to alchemy and chemistry, by M. M. Pattison Muir.--Roger Bacon and gunpowder, by H. W. L. Hime.--Roger Bacon and medicine, by E. Withington. (shrink)