The nature of quantum computation is discussed. It is argued that, in terms of the amount of information manipulated in a given time, quantum and classical computation are equally efficient. Quantum superposition does not permit quantum computers to ''perform many computations simultaneously'' except in a highly qualified and to some extent misleading sense. Quantum computation is therefore not well described by interpretations of quantum mechanics which invoke the concept of vast numbers of parallel universes. Rather, entanglement makes available types of (...) computation processes which, while not exponentially larger than classical ones, are unavailable to classical systems. The essence of quantum computation is that it uses entanglement to generate and manipulate a physical representation of the correlations between logical entities, without the need to completely represent the logical entities themselves. (shrink)

Artykuł przedstawia sformułowaną przez M.A. Krąpca propozycję filozoficznego wyjaśnienia bytu społecznego na podstawie rozumienia człowieka jako spotencjalizowanej osoby. Kluczowe dla zaprezentowanej w artykule koncepcji M.A. Krąpca jest filozoficzne ujęcie dobra wspólnego rozumianego personalistycznie, jako analogicznie wspólny wszystkim ludziom cel: aktualizacja potencjalności osobowych człowieka, a więc rozwój moralny, wolitywny i twórczy każdego człowieka. Zapewnienie środków realizacji tak rozumianego dobra wspólnego stanowi zasadniczą rację bytu społeczeństwa i państwa. Wszelki byt społeczny jest bowiem — jako rzeczywistość relacyjna — ontycznie „słabszy” niż istniejąca w (...) sposób podmiotowy osoba ludzka. Dobro wspólne rozumiane personalistycznie stanowi jedyne dobro w pełni nieantagonistyczne: rozwój osobowy poszczególnych ludzi nikogo nie uszczupla, a wszystkich ubogaca. Zatem nie stanowi ono podporządkowania jednostki dobru całości rozumianej w sposób kolektywny. Jednocześnie pozwala na wskazanie racjonalnych podstaw dla konieczności istnienia rozmaitych społeczności, bez których rozwój osobowy nie mógłby się dokonać. Zaproponowana w artykule koncepcja M.A. Krąpca, akcentując prymat osoby względem bytu społecznego, jednocześnie wskazuje na fakt konieczności istnienia różnorakich społeczności jako ugruntowanych w ludzkiej spotencjalizowanej naturze środowisk umożliwiających rozwój osobowy człowieka. Tym samym pozwala na przekroczenie dychotomii indywidualizm — kolektywizm. (shrink)

This paper gives an account of the debate between F.A. Hayek and J.M. Keynes in the 1930s written for the general public. The purpose of this is twofold. First, to provide the general reader with a narrative of what happened, … More ›.

Purpose: Commenting on the transcript of a lecture. Findings: The document reconstructs the development of the original 1973 lecture by Heinz von Foerster into his best-known paper, On Constructing a Reality. Many aspects of that paper can be identified as being shaped through interaction with the audience. Implications: The lecture documented here was a forerunner of a central paper in constructivism.

In the years 1878 and 1879 the American physicist Alfred Marshall Mayer published his experiments with floating magnets as a didactic illustration of molecular actions and forms. A number of physicists made use of this analogy of molecular structure. For William Thomson they were a mechanical illustration of the kinetic equilibrium of groups of columnar vortices revolving in circles round their common centre of gravity . A number of modifications of Mayer's experiments were described, which gave configurations which were more (...) or less analogous to Mayer's arrangements. It was Joseph John Thomson who, in publications between 1897 and 1907, used Mayer's results to obtain a good deal of insight into the general laws which govern the configuration of the electrons in his atomic model. This article is mainly concerned with Mayer's experiments with floating magnets and their use by a number of physicists. Through his experiments Mayer made a significant, although small, contribution to the theory of atomic structure. (shrink)

Book review of 'Srimad Bhagavata—Condensed in the Poet's Words' by A M Srinivasachariar. In this book, the Sanskrit Bhagavata verses have been condensed without using any words other those of the original. This has been translated into English by V Raghavan. This book enables one to have an idea of the main content of the lengthier original text.

. This paper proves that the division operation \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document} $\lfloor a/m\rfloor$\end{document} is provably total in the system \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document} $S_2^0$\end{document} of bounded arithmetic if and only if \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document} $m$\end{document} is of the form \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document} $2^n$\end{document} for some \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} (...) \begin{document} $n$\end{document}. (shrink)

RésuméL'auteur montre que si l'argumentation d'Einstein paraǐt classique sur presque tous les points, elle ne l'est pas sur un point fondamental, qui est l'égalité de la vitesse de la lumière dans toutes les directions. Si l'on laisse tomber ce postulat, on retombe sur la simultanéité absolue. D'autre part, ce « classicisme » est légitime et apparaǐt au contraire comme une habileté didactique. Enfin, il montre que le point qui déroute M. Evans, c'est la relativité de la vitesse relative, qui n'existe (...) pas en physique classique.The author shows that although Einstein's argument seems classical in almost all points, it fails to be in one very important point: the equality of the velocity of light for all observers. When setting aside this postulate, one returns to the absolute simultaneity. On the other hand, this almost classical argument is perfectly valid from the relativistic point of view and appears as a didactic cleverness. The author shows finally that the point deceiving Mr. Evans is the relativity of the relative velocity, that does not exist in classical physics. (shrink)

My aim in this paper is to attempt a philosophical reading of M. Karagatsis’ novel Kitrinos Fakelos (1956), focusing my analysis on the passions and the emotions of its fictional characters, aiming at demonstrating their independence as well as the presentation of their psychography in Karagatsis’ novel where the description of the emotions caused by love is a dominant feature. In particular, I will examine the expression of desire, love (erôs) and sympathy in this novel – passions and emotions that (...) play an important role to moral life and human existence in general. I will be approaching these issues from the point of view of moral philosophy, analyzing the passions and the emotions expressed by the fictional characters in Kitrinos Fakelos, and in particular of the fictional character of Manos Tasakos. At the same time, I will attempt to show the philosophical influences that M. Karagatsis has received in his literary work, and especially in his novel Kitrinos Fakelos, by the philosophical thought of Friedrich Nietzsche. In addition, I will try to demonstrate the contrast between the Nietzschean moral model and that of both ancient and contemporary virtue ethical theory, in relation to the traditional interpretation of the work of Nietzsche’s that Karagatsis adopts, along with many of his contemporaries in Greece from the beginning of the 20th century until the 70’s at least. (shrink)

Since the beginning of the 20th Century to the present day, it has rarely been doubted that whenever formal aesthetic methods meet their iconological counterparts, the two approaches appear to be mutually exclusive. In reality, though, an ahistorical concept is challenging a historical analysis of art. It is especially Susanne K. Langer´s long-overlooked system of analogies between perceptions of the world and of artistic creations that are dependent on feelings which today allows a rapprochement of these positions. Krois’s insistence on (...) a similar point supports this analysis. - I - Unbestritten bis heute gilt, formwissenschaftliche und ikonologische Methoden scheinen sich grundsätzlich auszuschließen, da die ersteren auf ahistorischen und die letzteren auf historischen Grundlagen aufbauen. Dem entgegen soll mit diesem Beitrag gezeigt werden, wie insbesondere die Forschungen Susanne K. Langers und ergänzend diejenigen von John M. Krois eine Annäherung beider Positionen ermöglichen. (shrink)

Ethics of Richard M. Hare is widely considered as a classical example of the strong internalistic theory of motivation: he is thought to believe that having a moral motive is a sufficient condition to act accordingly. However, strong internalism has difficulties with explaining the phenomenon of acrasia and amoralism. For this reason some critics charge him with developing a false theory of moral motivation. In the article I present Hare's answer to these questions by dividing the discussion about motivation into (...) three levels: semantical, epistemological, and ontological. I also explain his concept of internal motivation and argue that his theory, contrary to what his critics assume, may be called a weak motivational internalism. (shrink)

Resumen Nuestro trabajo presenta una nueva propuesta de lectura de una inscripción hallada en Emporiae en honor de un M. Iuṇ[ius] cuya identidad tratamos de determinar, planteando la posibilidad de que se trate del pretor M. Iunius citado por Cicerón en su discurso Pro Cluentio y de que, por lo tanto, la inscripción corresponda a su posible proconsulado en Hispania Citerior hacia el año 68 a. C. Dicho supuesto nos permite al mismo tiempo poner al personaje en relación con las (...) circunstancias fundacionales de la ciudad romana de Emporiae, cuyo nacimiento sitúan hoy ciertos arqueólogos en las primeras décadas del siglo I a. C. (shrink)

A large body of literature agrees that persons with schizophrenia suffer from a Theory of Mind deficit. However, most empirical studies have focused on third-person, egocentric ToM, underestimating other facets of this complex cognitive skill. Aim of this research is to examine the ToM of schizophrenic persons considering its various aspects, to determine whether some components are more impaired than others. We developed a Theory of Mind Assessment Scale and administered it to 22 persons with a DSM-IV diagnosis of schizophrenia (...) and a matching control group. Th.o.m.a.s. is a semi-structured interview which allows a multi-component measurement of ToM. Both groups were also administered a few existing ToM tasks and the schizophrenic subjects were administered the Positive and Negative Symptoms Scale and the WAIS-R. The schizophrenic persons performed worse than control at all the ToM measurements; however, these deficits appeared to be differently distributed among different components of ToM. Our conclusion is that ToM deficits are not unitary in schizophrenia, which also testifies to the importance of a complete and articulated investigation of ToM. (shrink)

Book Review of 'Ethics and AIDS in Africa: The Challenge to Our Thinking' By Anton A. van Niekerk and Loretta M. Kopelman (Eds).

In his novel The Girl with All the Gifts, M. R. Carey presents human beings under vexation. The novel begins in medias res, twenty years after a fungal outbreak, as Homo sapiens are on the brink of evolutionary extinction. Evolution, initiated by the spread of a fungus that first controls and then destroys its human hosts, has necessitated that human beings either adapt, thereby revealing humanity’s true potential, or die.1 Adaptation is impossible for Homo sapiens; the human body in its (...) current form cannot coexist with the fungus. In order to preserve humanity, humanoid creatures must become a new species of posthumans. The novel explores the responses both of the surviving humans, as they face their deaths and... (shrink)

Moral theories which, like those of Plato, Aristotle and Aquinas, give a central place to the virtues, tend to assume that as traits of character the virtues are mutually compatible so that it is possible for one and the same person to possess them all. This assumption—let us call it the compatibility thesis—does not deny the existence of painful moral dilemmas: it allows that the virtues may conflict in particular situations when considerations associated with different virtues favour incompatible courses of (...) action, but holds that these conflicts occur only at the level of individual actions. Thus while it may not always be possible to do both what would be just and what would be kind or to act both loyally and honestly, it is possible to be both a kind and a just person and to have both the virtue of loyalty and the virtue of honesty. (shrink)

I present here a modal extension of T called KTLM which is, by several measures, the simplest modal extension of T yet presented. Its axiom uses only one sentence letter and has a modal depth of 2. Furthermore, KTLM can be realized as the logical union of two logics KM and KTL which each have the finite model property (f.m.p.), and so themselves are complete. Each of these two component logics has independent interest as well.

Theophrasti Characteres recensuit Hermannus Diels. Oxford Classical Texts. 1909. 3s. 6d. net. Pp. xxviii + .Θεοφρστου Xαρακτxs22EFρες. The Characters of Theophrastus. An English Translation from a Revised Text. With Introduction and Notes by R. C. Jebb, M.A. A new edition. Edited by J. E. Sandys, Litt.D. Macmillan. 1909. 7s. 6d. net. c. 23×14½. Pp. xvi+229.

T. Macci Plauti Menaechmi, editio altera a F. Schoell recognita . 5 M. 60. The Menaechmi of Plautus, edited on the basis of Brix's edition, by Harold North Fowler, Ph. D.

This essay comments on the articles by Loretta M. Kopelman and Anita Silvers. It extends their analyses and concludes that consistency and the total absence of conflict may be unavailable when one interprets and applies the Americans with Disabilities Act.