By considering the irreducible representations of the Lorentz group, an analysis of the different spin-2 waves is presented. In particular, the question of the helicity is discussed. It is concluded that, although from the point of view of representation theory there are no compelling reasons to choose between spin-2 waves with helicity σ=±1 or σ=±2, consistency arguments of the ensuing field theories favor waves with helicity σ=±1.

Given Conciliar Christology and a compositionalist metaphysics of the incarnation, I explore whether ‘qua-propositions’ are capable of solving the coherence problem in Christology. I do this by probing the metaphysical aspect of qua-propositions, since ‘semantics presupposes metaphysics’. My proposal focuses on the fact that the Word accidentally owns an individual human nature. Due to that individuality, the human properties first characterise the individual human nature and, in a ‘next step’, this individual human nature characterises the Word. I call this ‘stepped (...) characterisation’. Subsequently, I show that stepped characterisation validates the use of qua-propositions in Conciliar Christology. Hence, qua-propositions are not merely ‘muddling the waters of logic’. (shrink)

This is the first in a series of papers that present a new classical statistical treatment of the system of a charged harmonic oscillator (HO) immersed in an omnipresent stochastic zero-point (ZP) electromagnetic radiation field. This paper establishes the Gaussian statistical properties of this ZP field using Bourret's postulate that all statistical moments of the stochastic field plane waves at a given space-time point should agree with their corresponding quantized field vacuum expectations. This postulate is more than adequate to derive (...) the Planck spectrum classically via Boyer's and Theimer's methods, but it requires that the stochastic amplitude of each linearly polarized plane wave in the field contain two independent Gaussian random variables, not just a random phase as has sometimes been assumed. In the succeeding papers in the series, the total motion of a charged HO is described by a fully renormalized dipole-approximation Abraham-Lorentz equation. This leads without further approximation to the following major results concerning this stochastic electrodynamics (SED) of the HO: i) The ensemble-average Liouville equation for the oscillator-ZP field system in the presence of an arbitrary applied classical radiation field is exactly equivalent to the usual time-dependent Schrödinger equation supplemented by an explicit radiation reaction vector potential similar to that of the Crisp-Jaynes-Stroud theory; ii) this SED Schrödinger equation for the HO is incomplete, insmuch as there exists a companion equation that restricts initial conditions such that the corresponding Wigner phase-space distribution is always positive; iii) the wave function of the SED Schrödinger equation has thea priori significance of position probability amplitude; iv) first-order transition rates predicted for the HO by this theory agree with those predicted by quantum electrodynamics for resonance absorption and spontaneous emission, which occurs with no triggering necessary; and v) if SED is taken seriously, then the concepts of quantized energies and photons must be abandoned. (shrink)

Unlike the radical historicist and the radical logicist, the moderate historicist in the philosophy of science adopts the position that neither purely a priori (i.e., logical or philosophical) nor purely historical considerations alone determine the acceptability of a philosophical analysis of science. A dilemma arising from the nature of this position is first described and then it is argued that what is perhaps the most plausible way of avoiding this dilemma is doomed to failure. A particular example of this attempt (...) at escaping the dilemma is considered in some detail, and along the way evidence is amassed in support of the view that no non-trivial statement of moderate historicism will be coherent. (shrink)

In this third paper in a series on stochastic electrodynamics (SED), the nonrelativistic dipole approximation harmonic oscillator-zero-point field system is subjected to an arbitrary classical electromagnetic radiation field. The ensemble-averaged phase-space distribution and the two independent ensemble-averaged Liouville or Fokker-Planck equations that it satisfies are derived in closed form without furtner approximation. One of these Liouville equations is shown to be exactly equivalent to the usual Schrödinger equation supplemented by small radiative corrections and an explicit radiation reaction (RR) vector potential (...) that is similar to the Crisp-Jaynes semiclassical theory (SCT) RR potential. The wave function in this SED Schrödinger equation is shown to have thea priori significance of position probability amplitude. The other Liouville equation has no counterpart in ordinary quantum mechanics, and is shown to restrict initial conditions such that (i) The Wigner-type phase-space distribution is always positive, (ii) in the absence of an applied field, the only allowed solution of both equations is the quantum ground state, and (iii) if a previously applied field is suddenly turned off, then spontaneous transitions occur, with no need for a triggering perturbation as in SCT, until the system is in the ground state. It is also shown that the oscillator energy is a fluctuating quantity that must take on a continuum of values, with average value equal to the quantum ground-state energy plus a contribution due to the applied classical field. (shrink)

Contemporary philosophers—one may mention in particular Thomas Nagel and Bernard Williams—have drawn attention to the phenomenon of moral luck. Moral luck, as distinct from luck in an unqualified sense, has a bearing on the way in which people’s attributes and acts are assessed morally. More specifically, it has a bearing on the way in which people are praised or blamed, rewarded or punished. The issue involved is usually stated in terms of blame or punishment, though it could also be stated (...) in terms of praise and reward; luck can be good as well as bad. For convenience, I will concentrate on blame and punishment. It seems evident that a person cannot justly be punished or blamed for what is outside his control; it also seems evident that to call something a matter of luck is to say that it is outside the control of the person involved. Yet there are many cases of moral luck; that is, cases in which luck plays an important part in the acts or characteristics for which a person is blamed or punished. Nagel distinguishes four types of such luck. There is constitutive luck, where this relates to “the kind of person you are, where this is not just a question of what you deliberately do, but of your inclinations, capacities and temperament.” There is luck in the way in which a person is determined by antecedent circumstances, which make a man the kind of person he is. There is luck in one’s circumstances, i.e., the kinds of problems and situations one faces. Finally, there is luck in the way one’s actions turn out: for example, a motorist may have done all that is normally necessary to stop his car, but due to faulty brakes runs over a child. (shrink)

Cultural boundaries in Islam based on Hadith (Islamic traditions).

Analytical study of the social theories of Muslim philosophers belonged to 9th to 18th centuries.

Study on Islamic ethics and religious life in view of Islamic doctrines.

In video games, identification with avatars—virtual entities or characters driven by human behavior—has been shown to serve many interpersonal and intraindividual functions but our understanding of the psychological variables that influence players' avatar choices remains incomplete. The study presented in this paper tested whether players' preferred style of avatar creation is linked to the magnitude of self-perceived discrepancies between who they are, who they aspire to be, and who they think they should be. One-hundred-and-twenty-five undergraduate gamers indicated their preferred avatar (...) creation style and completed a values measure from three different perspectives: their actual, ideal, and ought selves. The average actual/ideal values discrepancy was greater among those who preferred idealized avatars vs. those who preferred realistic avatars. The average actual/ought values discrepancy was greater among those who preferred completely different avatars vs. those who preferred realistic avatars. These results, therefore, offer additional evidence that self-discrepancy theory is a useful framework for understanding avatar preferences. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:234 Feminist Studies 45, no. 1. © 2019 by Abigail G. H. Manzella Built for Two Abigail G. H. Manzella Arabesque, darling, arabesque. Then my grandmother would guffaw as my six-year-old leg lifted, pose unsteady Twisting, shifting in my first artistic throes still buoyant and raw. She could be brusque, Not grasping what could hurt a child’s heart, But her laughter was infectious Her eyes like mine—a smile. At (...) a distance, she supported my adventures in art. What became of your poems, she pried when I’d reached my full height. That’s kid stuff, my flippant response. She’d nod and at my next visit ask again, More shrewd than polite. A day arrived when she could ask no more. I sang to her the songs of her childhood Daisy, Daisy, give me your answer, do... She’d mouth the words and swing her leg The one still good. Just like a kid. And there I stood feeling like one, too.... (shrink)

Blackburn’s book is concerned with a "certain way of reasoning" corresponding to that "belief which we have because we expect uniformities in our experience to be representative." In short, the subject is the problem of induction and the purpose is the redoubtable task of justifying inductive reasoning. The fundamental question to which the author addresses himself is "whether, and why, we are ever right to use I-evidence as a reason for an I-conclusion?". While Blackburn presents a sustained and intricate argument, (...) perhaps four of the major aspects of his study deserve particular mention. First, as a result of an inquiry into the concept of a reason, it becomes apparent that some sort of normative analysis of the concept is indicated. For one criterion of a reasoning procedure must be reliability; such a procedure should generally result in the truth. Moreover, there is a distinct relationship between having confidence in a proposition and that proposition being true. Ultimately, "the authority of reasoning is nothing more, nor less, than the authority of truth.". (shrink)

Throughout his active philosophical life, Nikolai Berdiaev was preoccupied with the philosophical and sociological questions stemming from the impact of technology on the life of modern man. He gave to his thoughts a condensed expression in a longish essay in the journal Put' for 1933 with the title "Man and Machine" [Chelovek i mashina]. But he had touched on the subject penetratingly already in his early work The Meaning of History [Smysl istorii], which was first published in Russian in 1923 (...) and in English translation in 1936, and he devoted a chapter to it in his last major work, the posthumously published The Realm of Spirit and the Realm of Caesar [Tsarstvo dukha i tsarstvo Kesaria], which came out in Russian in 1949 and in English translation in 1952. In the last year of his life, Berdiaev read a paper titled "L'homme dans la civilization technique" at a conference in Neuchâtel. The Russian original of the paper apparently has not been published. (shrink)

Zettel is a collection of fragments which Wittgenstein cut from various of his typescripts and preserved for future use. More than half of the fragments were written in the years 1946-1948, after the completion of Part I and before the composition of Part II of the Philosophical Investigations. This collection may therefore be regarded as a companion volume to the Investigations, adding to both the scope and the Unity of Wittgenstein′s chef d′oeuvre. The fragments were kept in a box and (...) were not strictly ordered. Many have marks showing changes and improvements made after they were cut from the typescripts; some have remarks added in handwriting. Editing the collection for publication was thus a task of considerable difficulty. Since Zettel was first published, further research has been carried out on the fragments and minute comparisons have been made with their typescript and manuscript sources, revealing certain inaccuracies and misinterpretations in the first editing of the work. The second edition corrects these shortcomings and includes new explanatory footnotes; a detailed index, compiled by Stephen Amdur, has also been added. (shrink)