Atomic-scale computer simulation has been used to study the thermally activated atomic transport of self-interstitial atoms in the form of planar clusters in pure Cu and f -Fe. There is strong evidence that such clusters are commonly formed in metals during irradiation with high-energy particles and play an important role in accumulation and spatial distribution of surviving defects. An extensive study of the mobility of SIA clusters containing two to 331 interstitials has been carried out using the molecular dynamics simulation (...) technique for the temperature range from 180 to 1200 K. The results obtained show that clusters larger than three to four SIAs are one-dimensionally mobile in both Cu and Fe. Large clusters of more than 100 SIAs in Cu and 300 SIAs in Fe have significantly reduced mobility. The problem of describing one-dimensional motion in three-dimensional space is discussed. An attempt is made to describe the mobility of SIA clusters within the approximation of 1D diffusion. For clusters in both metals the effective migration energy of 1D diffusion as estimated via the jump frequency of the cluster centre of mass is found to be independent of the number of SIAs in the clusters, although the cluster jump frequency decreases with increasing cluster size. Mechanisms of 1D mobility of interstitial clusters are discussed. (shrink)

Context. The identification of the sources that reionized the Universe and their specific contribution to this process are key missing pieces of our knowledge of the early Universe. Faint star-forming galaxies may be the main contributors to the ionizing photon budget during the epoch of reionization, but their escaping photons cannot be detected directly due to inter-galactic medium opacity. Hence, it is essential to characterize the properties of faint galaxies with significant Lyman continuum photon leakage up to z 4 to (...) define indirect indicators allowing analogues to be found at the highest redshift. Aims. Long gamma-ray bursts explode typically in star-forming regions of faint, star-forming galaxies. Through LGRB afterglow spectroscopy it is possible to detect directly LyC photons. Our aim is to use LGRBs as tools to study LyC leakage from faint, star-forming galaxies at high redshift. Methods. Here we present the observations of LyC emission in the afterglow spectra of GRB 191004B at z = 3:5055, together with those of the other two previously known LyC-emitting LGRB, to determine their LyC escape fraction and compare their properties. Results. From the afterglow spectrum of GRB 191004B we determine a neutral hydrogen column density at the LGRB redshift of og =17:2 0:15, and negligible extinction. The only metal absorption lines detected are C iv and Si iv. In contrast to GRB 050908 and GRB 060607A, the host galaxy of GRB 191004B displays significant Ly emission. From its Ly emission and the non-detection of Balmer emission lines we constrain its star-formation rate to 1 SFR 4:7 M yr. 1. We fit the Ly emission with a shell model and find parameters values consistent with the observed ones. The absolute LyC escape fractions we find for GRB 191004B, GRB 050908 and GRB 060607A are of 0:35+0:10.0:11, 0:08+0:05.0:04 and :20+0:05.0:05, respectively. We compare the LyC escape fraction of LGRBs to the values of other LyC emitters found from the literature, showing that LGRB afterglows can be powerful tools to study LyC escape for faint high-redshift star-forming galaxies. Indeed we could push LyC leakage studies to much higher absolute magnitudes. The host galaxies of the three LGRB presented here have all M1600 >.19:5 mag, with the GRB 060607A host at M1600 >.16 mag. LGRB hosts may therefore be particularly suitable for exploring the ionizing escape fraction in galaxies that are too faint or distant for conventional techniques. Furthermore the time investment is very small compared to galaxy studies. (shrink)

Annotation A scholarly edition of a work by Adam Smith. The edition presents an authoritative text, together with an introduction, commentary notes, and scholarly apparatus.

H.B.G. Casimir's life, interests and works are intertwined with the important developments that have taken place in physics during this century. This book was compiled by his friends and admirers in honour of his 80th birthday and concentrates mainly on Casimir's achievements in the field of physics, though without ignoring the peripheral areas of the history and philosophy of physics in which he was greatly interested. The book is divided into four parts. Part I describes Casimir's teachers, Ehrenfest, Bohr and (...) Pauli, and will be of general interest due to the key role which these physicists played in modern developments. The articles do give new facts and provide new insights into the history of modern physics. Part II consists of essays on recent developments in various areas of physics in which Casimir has taken an active interest, such as the modern concept of time, statistical foundations of electrodynamic theory and field theory. The subjects covered in Part III have been selected because of Casimir's efforts in the industrial research area of physics. They cover past, present and future expectations in research. (shrink)

Gary Kemp defends Realist approaches to the paradox of analysis. Other, prima facie equally viable approaches to this problem are the Nominalist one of Langford and Camap and the Conceptualist one of Prior and Stalnaker. In the context of a fuller survey focus is set on the realist attempt. This puts one in a better position to arbitrate between these approaches and give a more final assessment of the realist one, including an assessment of Kemp's defence of it. The Conceptualist (...) one, as it turns out, triumphs over the others, and is the basis for a Wittgensteinian vie w of the a priori which is analyzed in the second part of the paper. (shrink)

Gary Kemp defends Realist approaches to the paradox of analysis. Other, prima facie equally viable approaches to this problem are the Nominalist one of Langford and Camap and the Conceptualist one of Prior and Stalnaker. In the context of a fuller survey focus is set on the realist attempt. This puts one in a better position to arbitrate between these approaches and give a more final assessment of the realist one, including an assessment of Kemp's defence of it. The Conceptualist (...) one, as it turns out, triumphs over the others, and is the basis for a Wittgensteinian vie w of the a priori which is analyzed in the second part of the paper. (shrink)

(1997). The fly in the ointment: A study of relativism in MacIntyre and Goodman as applied to innocence and guilt in Kafka's the trial. The European Legacy: Vol. 2, Fourth International Conference of the International Society for the Study of European Ideas, pp. 609-614.

It is easy to understand why Hegel's philosophy should be little studied by English-speaking philosophers today. Those who at the beginning of the twentieth century initiated the movement we are now caught up in presented their earliest philosophical arguments as criticisms of the prevailing Anglo-Hegelian views. It may now be thought illiberal to take much interest in this perhaps excusably slaughtered royal family, and positively reactionary to hanker after the foreign dynasty from which it sometimes claimed descent. Hegel was a (...) systematic philosopher with a scope hardly to be found today, and men who, as we say, wish to keep up with their subject may well be daunted at the idea of having to understand a way of looking at philosophy which they suspect would not repay them for their trouble anyway. Furthermore, since Hegel wrote, formal logic has advanced in ways he could not have foreseen, and has, it seems to many, destroyed the whole basis of his dialectical method. At the same time, the creation of a science of sociology, it is supposed, has rendered obsolete the philosophy of history for which Hegel was at one time admired. In countries where there are Marxist intellectuals, Hegel does get discussed as the inadvertent forerunner of historical and dialectical materialism. But in England, where there is no such need or presence, there do not seem to be any very strong ideological reasons for discussing him. In what follows I shall be asking you to direct your thoughts to certain forgotten far-off things which I hope you will find historically interesting even if you do not agree with me that they give important clues for an understanding of human nature and human society. (shrink)

Islamic renewal; Ethics, Comparative; Islamic ethics.

In this chapter we extend earlier work (Vinuesa et al., Nat Commun 11, 2020) on the potential of artificial intelligence (AI) to achieve the 17 Sustainable Development Goals (SDGs) proposed by the United Nations (UN) for the 2030 Agenda. The present contribution focuses on three SDGs related to healthy and sustainable societies, i.e., SDG 3 (on good health), SDG 11 (on sustainable cities), and SDG 13 (on climate action). This chapter extends the previous study within those three goals and goes (...) beyond the 2030 targets. These SDGs are selected because they are closely related to the coronavirus disease 19 (COVID-19) pandemic and also to crises like climate change, which constitute important challenges to our society. (shrink)

This account of poverty and deviance during recent times in the city of Antwerp compares situations of the 1930's with present times. Undoubtedly social security prevented, since the end of the war, that many people feit into poverty. Still in the presence of massive unemployment, public relieve organisations, such as the 0.C.M.W. are more and more confronted with what is called precarity.About 25% of the Antwerp population is estimated to be living in a precair situation. After glancing on the near (...) future and warningfor a number of social challenges, the article insists very much on preventional politics and coordinated total development projects in the depressed areas. (shrink)

Rabindranath Tagore is remembered today chiefly as a poet, and his fame as a poet has often eclipsed his great contributions to other fields of literature and life — especially education. Tagore pondered deeply on the fundamental problems of education — aims, curriculum, method, discipline, values and medium — and wrote and experimented on them freely and extensively. Tagore is perhaps the only literary genius in contemporary history who devoted a major part of his life to thinking about education and (...) creating an educational institution of international significance. Also, the institution he created at Santiniketan proved to be the most global and sustainable among the progressive educational institutions launched by individual thinkers such as Froebel and Russell. This edition revives a classic work, the first comprehensive, full-length account of Tagore’s educational thought and activity, commemorating his 150th birth anniversary. It presents a detailed chronological survey of Tagore’s educational writings and institutional activities in the perspective of his life and thought in general. The book also contains a detailed review and critical discussion on almost all major aspects of his educational work. Through an overall evaluation of Tagore’s unique contribution to education and his message to the world, it seeks to correct some common misconceptions that have existed from time to time about Santiniketan and Visva-Bharati. The book will help form a more complete view of Tagore’s life and work, filling as it does the gaps and voids in the literature that has grown around him, and reinforcing its relevance today. It will be of value to educationists, teachers, policymakers, those interested in modern Indian history and philosophy of education._ _. (shrink)

Current views of the control of complex, purposeful movements acknowledge that organizational processes must reconcile multiple concerns. The central priority is of course accomplishing the actor's goal. But in specifying the manner in which this occurs, the action plan must accommodate such factors as the interaction of mechanical forces associated with the motion of a multilinked system (classical mechanics) and, in many cases, intrinsic bias toward preferred movement patterns, characterized by so-called “coordination dynamics.” The most familiar example of the latter (...) is the symmetry constraint, where spatial trajectories and/or temporal landmarks (e.g., reversal points) of concurrentlymoving body segments (limbs, digits, etc.) exhibit mutual attraction. The natural coordination tendencies that emerge through these constraints can facilitate or hinder motor control, depending on the degree of congruency with the desired movement pattern. Motor control theorists have long recognized the role of classical mechanics in theories of movement organization, but an appreciation of the importance of intrinsic interlimb bias has been gained only recently.Although detailed descriptions of temporal coordination dynamics have been provided, systematic attempts to identify additional salient dimensions of interlimb constraint have been lacking. We develop and implement here a novel method for examining this problem by exploiting two robust principles of psychomotor behavior, the symmetry constraint and the Two-Thirds Power Law. Empirical evidence is provided that the relative spatial patterns of concurrently moving limbs are naturally constrained in much the same manner as previously identified temporal constraints and, further, that apparent velocity interference is an indirect, secondary consequence of primary spatial assimilation. The theoretical implications of spatial interference are elaborated with respect to movement organization and motor learning. The need to carefully consider the appropriate dimensions with which to characterize coordination dynamics is also discussed. (shrink)

The journal of symbolic logic began publishing in 1936. From the outset, the Journal included a Reviews Section, edited by Alonzo Church. The very first issue carried three pages of reviews, written by Bernays, Church, Rosser, and Quine.As the first issue stated, “It is intended that this section of the Journal shall serve as a complete bibliography of current literature in the field of symbolic logic, from January 1, 1936. To this end an effort will be made to include in (...) it, at least by title, all publications in this field, both books and articles in journals, and as far as possible these will be accompanied by signed reviews.” Thus the purpose of the Reviews Section was two-fold. For one, there was its bibliographical function: to provide a complete, suitably indexed, listing of all the publications—both books and journal articles—in symbolic logic, wherever and in whatever language published. And secondly, the reviews were to provide critical, analytical commentary on these publications, whenever possible.The Reviews Section should be viewed as a continuation and expansion of Church's A bibliography of symbolic logic. The Bibliography was a listing, with some annotations, of the publications in symbolic logic prior to 1936. It was published as volume 1, number 4 of the Journal. Church made the listing as complete as he could, of course. (shrink)

It is argued that dispositional explanations are radically incomplete causal explanations that are employed when (1) a description of the stimuli is insufficient to account for the object's response and (2) not enough is known about the object to specify what its specific causal contribution is. ryle's failure to refer to the causal contribution of the organism in his account of dispositions is regarded as a serious weakness.

Compared to philosophers, the leading Latin American novelists, poets, and playwrights are relatively well known in the United States and many of their works are available in English translations. The Latin American philosophers, however, are an unknown quantity--not only to the reading public at large, but also to practically all U.S. philosophic and scholastic communities. Yet, Latin America contains a number of important original thinkers whose works would reward study here. Philosophical concepts developed in an ambient of young and not (...) yet fully-formed nations, without a long national cultural tradition of their own and struggling to overcome semi-primitive economic and political conditions, are bound to add some interesting dimensions to what is commonly called the "philosophy of the western world." This is particularly true when the philosophizers are distinguished--as they are in many cases--by a personal moral commitment to social and political involvement and activity. Jose Vasconcelos was such a figure. The volume under review gives us our first English summary of Vasconcelos' whole philosophical system: his metaphysics, his epistemology, his ethics and his aesthetics. It also ties in his social and political philosophy and some biographical details. The full impact of Vasconcelos' aesthetic monism comes through clearly, concisely and forcefully in nine carefully-chosen selections in the Appendix. It is to be hoped that this little volume portends a new trend toward making available in English the works of other outstanding Latin American philosophers.--H. B. (shrink)

Although Dilthey is increasingly recognized as a seminal philosopher whose thought finds significant expression in the works of Heidegger, Husserl, Jaspers, Mannheim, Weber, Spranger, Simmel, Troeltsch, and Buber, his writings are available in English in only the scantiest of excerpts. Book-size English commentaries on Dilthey can be counted without exhausting the fingers of one hand. The present, slim volume would, therefore, be of interest for no other reason than that it adds a reference to an all-too skimpy library. Fortunately, it (...) is of value for much better reasons. What Tuttle has attempted is the first systematic exposition of Dilthey's life-long attempt to establish an objectively valid basis for his theory of Verstehen and Nacherlebnis.. This may belie the subtitle of the book, but it can hardly be denied that the exposition is at least equal in importance to the critical analysis which follows it. The reconstruction of Dilthey's arguments consists of a description of: his concept of the special nature of human life which permits the subject and object of historical knowledge to be the same; the original descriptive psychology which Dilthey worked out as the basis for the study of history and of all the human sciences; his somewhat equivocal abandonment of psychology because of its ahistorical and law-like character in favor of an emphasis on empirical life assertions which are internalized by the method of Verstehen; his notion of human nature and the tension between its historically changing aspect and its unchanging epistemological aspect; the role of motives in Dilthey's system as causes of historical action; and his theory of ideal types as a methodological device for generalizing without having to utilize the causal explanations of natural science. The book begins and ends on the same note; namely, that Dilthey is unable to verify that the re-experience of the historian is actually a duplicate of the experience of the historical agent. But in between the opening statement and its repetition at the end, a wealth of insight into Dilthey's thought is provided.--H. B. (shrink)