In a previous paper we have shown that in quantum chromodynamics the gluon propagator vanishes in the infrared limit, while the ghost propagator is more singular than a simple pole. These results were obtained after angular averaging, but in the current paper we go beyond this approximation and perform an exact calculation of the angular integrals. The powers of the infrared behaviour of the propagators are changed substantially. We find the very intriguing result that the gluon propagator vanishes in the (...) infrared exactly like p2, whilst the ghost propagator is exactly as singular as 1/p4. We also find that the value of the infrared fixed point of the QCD coupling is much decreased from the y-max estimate: it is now equal to 4π/3. Following a recent study by von Smekal et al.[1], we analyzed in Ref.[2] the coupled Dyson- Schwinger equations for the gluon and ghost form factors F and G. The approximations were two-fold: firstly the vertices were taken bare, and secondly angular averaging was introduced (the so-called y-max approximation). Deferring to later work an improvement of the vertices. (shrink)

Praise for the First Edition: '... a unique and lively business ethics text... fresh and delightful... Sekhar's witty use of stories and cases will engage and enlighten business people in India and the rest of the world' - Joanne B Ciulla, The Journal of Business Ethics 'Richly international in scope and contributes to global concern' - Newsltter IIAS Leiden University 'This book makes an important contribution through its holisitc and balanced approach to the issue... Each chapter has a fair number (...) of relevant cases - many of which are good living examples one can learn from' - Business Standard This Second Edition of Sekhar's highly acclaimed book on business ethics has been revised keeping the student reader in mind. This unique text discusses the way ethical conflicts are handled in reality. The author argues that ethical education should be designed to produce balanced, pleasant and effective managers with the power of insight. Only then will they have the courage to create and use ethically desirable means to sustain organizations in an ambience of liberalism and democratic choice. (shrink)

The first Philosophers -- Plato -- Aristotle -- Augustine -- Thomas Aquinas -- Rene Descartes -- John Locke -- David Hume -- Immanuel Kant -- Karl Marx -- Soren Kierkegaard -- Fredrich Nietzsche -- Jean-Paul Sartre -- Darwin and Freud.

The aim of this study was to test red - green dichromats' ability to discriminate between illuminant and surface-reflectance changes in natural scenes. Stimuli were simulations of natural scenes presented on a colour monitor with 10-bit resolution per gun. The natural scenes were obtained with a fast hyperspectral imaging system. Six different scenes (including rocks, foliage, and buildings) were tested. In each trial, two images were presented in sequence, each for 1 s, with no interval. The images differed in the (...) phase of daylight on the scene: first with correlated colour temperature 25 000 K, then 6 700 K. The spectral reflectance of a region in the second image was changed randomly, consistent with a local change in daylight. The observer's task was to decide whether a particular surface in the successive images was the same (pure illuminant change) or different (illuminant change with a surface-reflectance change). The performance of four deuteranopes and five protanopes varied considerably across the scenes tested, with mean colour constancy indices (± 1 SEM) of 0.48 (± 0.13) and 0.19 (± 0.10), respectively (1.0 representing ideal performance). Deuteranopes seemed less disadvantaged than protanopes, performing close to normal with some scenes. (shrink)

The Book Focuses On Meaning And Linguistic Representations , And Links Them To Propose A Representational Theory Of Meaning. It Shows That Meaning As Truth-Conditions And As Justification-Conditions Are Equally Rooted In The Semantic Space Of Language-Use.

‘Mysticism means to isolate the eternal from the originated.’ This is not my definition of the word ‘mysticism’ but that of the founder of the ‘orthodox’ school of Muslim mysticism, Al-Junayd of Baghdad who flourished in the ninth century a.d . In actual fact it is not a definition of mysticism at all but of the Arabic word tawḥīd which means primarily ‘the affirmation of unity’; and that surely is an essential ingredient of any form of mysticism: it is the (...) affirmation through personal experience of unity either absolutely or in some qualified sense. (shrink)

As everyone knows, since the end of the Second World War there has been a sensational revival of interest in the non-Christian religions particularly in the United States and in this country. The revival has taken two forms, the one popular, the other academic. The first of these has turned almost exclusively to Hindu and Buddhist mysticism and can be seen as an energetic reaction against the dogmatic and until very recently rigid structure of institutionalised Christianity and a search for (...) a lived experience of the freedom of the spirit which is held to be the true content of mysticism, obscured in Christianity by the basic dogma of a transcendent God, the ‘wholly Other’ of Rudolf Otto and his numerous followers, but wholly untrammelled by any such concept in the higher reaches of Vedanta and Buddhism, particularly in its Zen manifestation. On the academic side the picture is less clear. There is, of course, the claim that the study of religion, like any other academic study, must be subjected to and controlled by the same principles of ‘scientific’ objectivity to which the other ‘arts’ subjects have been subjected, to their own undoing. But even here there would seem to be a bias in favour of the religions of India and the Far East as against Islam, largely, one supposes, in response to popular demand. (shrink)

Although scholars have expended increasing efforts over the last twenty years or so in either detecting or establishing large structural and thematic units within Ovid's perpetuum carmen, little attention, as far as I am aware, has been directed towards the evident care taken by Ovid in his arrangement of material within individual episodes, and the resultant over-all structure of those episodes. The aim of the present paper is to focus attention upon a single episode to which Ovid seems to have (...) paid particular attention in these respects. I refer to the long story of Phaethon, which occupies the last part of book 1, and most of the first half of book 2, of the Metamorphoses, and intend to explore two different lines of approach in examining the structure of this episode. (shrink)

We address two points in this commentary. First, we question the extent to which O'Brien & Opie have established that the classical approach is unable to support a viable vehicle theory of consciousness. Second, assuming that connectionism does have the resources to support a vehicle theory, we explore how the activity of the units of a PDP network might sum together to form phenomenal experience (PE).

Hawthorne and Magidor's criticisms of the model of presupposition and assertion that I have used and defended are all based on a rejection of some transparency or introspection of assumptions about speaker presupposition. This response to those criticisms aims first to clarify, and then to defend, the required transparency assumptions. It is argued, first, that if the assumptions are properly understood, some prima facie problems for them do not apply, second, that rejecting the assumptions has intuitively implausible consequences, and third, (...) that the 'margin of error' argument against the principle of positive introspection has a false premiss. The paper concludes with a response to a criticism of what Hawthorne and Magidor call 'the uniformity principle' that is used in the model to explain some pragmatic phenomena. (shrink)