A case study is presented of the development of computer-based support tools for power engineers in the electricity supply industry. The objective was to develop an expert system to support witching schedule production. A user-centred approach was followed which led the user community to conclude that a switching schedule production assistant (SSPA) was required which would leave control with the power engineer. Prototype systems were developed and evaluated in user trials which revealed that a significant and more general purpose tool (...) would be a computer generated electricity network display that the engineers could manipulate. The paper concludes that the process of enabling users to evaluate alternative forms of technology can facilitate the development systems that are useful, acceptable and usable. (shrink)

OBJECTIVE: To examine the long-term effects of an innovative curriculum on medical house officers' (HOs') knowledge, confidence, and attitudes regarding medical ethics. DESIGN: Long term cohort study. The two-year curriculum, implemented by a single physician ethicist with assistance from other faculty, was fully integrated into the programme. It consisted of monthly sessions: ethics morning report alternating with didactic conferences. The content included topics such as ethics vocabulary and principles, withdrawing life support, informed consent, and justice. Identical content was offered simultaneously (...) at the largest affiliated community hospital. SETTING: A multi-hospital university training programme from July, 1992 to June, 1994. PARTICIPANTS: Thirty-nine HOs responded in 92. Thirty HOs from the same cohort responded in 94 (response rates = 83% v 71%; P = 0.19). RESULTS: The curriculum was well received, with 96% of HOs finding the sessions stimulating. Previously validated scales of knowledge and confidence were administered at baseline and at follow-up. The average knowledge score improved 14% (P < 0.001). Confidence also improved, rising from 3.3 to 3.8 on a 5-point Likert scale (P < 0.001). These findings were independent of age, gender, religion, and prior education. The only attitudinal change was an increase in the proportion of residents who thought that ethics should be a required part of residency training (57% v 80%, P = 0.05). CONCLUSION: This curriculum appears practical, popular, and effective. It should be readily transferable to other institutions. (shrink)

The relationship between place and remembering has been a long-standing matter of phenomenological concern. The role of the 'lived body' in mediating acts of remembering in context is clearly crucial. In this paper we contribute to an 'expanded view of memory' by describing how remembering difficult or problematic events -- 'vital memories' -- draws upon inter-subjective and inter-objective relations. We discuss two conceptual tools that provide an analytic framework -- the concept of 'life space' drawn from Kurt Lewin and the (...) idea of the 'setting specificity' of remembering. From this perspective we can see that the 'lived body' does not constitute a singular unity but rather a 'plurality' of potential bodies that have 'operative solidarity' with the material relations in which they are constituted. Drawing on the work of Eduardo Viveiros de Castro, we argue that 'body memories' need to be analysed from within the embodied material-relational perspective wherein they are afforded. (shrink)

The present study explores the Bianchi type I universe in the frame work of f theory of gravity by considering strange quark matter attached to string cloud and domain walls in the presence and absence of magnetism. Field equations are solved by choosing a constant curvature method. It is found that obtained cosmological models are relevant to the early era of evolution of the universe. The strange quark matter may be a source of string cloud and domain walls.

The purpose of this study is to examine the relationship between the corporate social performance of an organization and three variables: the size of the organization, the financial performance of the organization, and the environmental performance of the organization. By empirically testing data from 1987 to 1992, the results of the study show that a firm's corporate social performance is indeed impacted by the size of the firm, the level of profitability of the firm, and the amount of pollution emissions (...) released by the firm. (shrink)

The study reports on the results of an empirical investigation of the education and recruitment processes used in HIV vaccine trials conducted in South Africa. Interviews were conducted with 21 key informants involved in HIV vaccine research in South Africa and three focus groups of community advisory board members. Data analysis identified seven major themes on the relationship between education and recruitment: the process of recruitment, the combined dual role of educators and recruiters, conflicts perceived by field staff, pressure to (...) achieve recruitment targets, problems in achieving comprehension, accountability and education as capacity building. The results raise ethical concerns about the adequacy of current informed consent processes in these settings. The study findings bear directly on current debates about issues of exploitation and the scope of moral responsibilities of researchers and funding agencies to assure that HIV clinical prevention research is conducted ethically. (shrink)

When a physician acts as both doctor and researcher conflicts can develop. When a doctor does not know whether a patient is taking active drug or placebo, any new medical problems can result in a dilemma. Is the patient's suffering a side effect of the medication or is this a new medical problem? Mrs W's case demonstrates the problem that can occur when the physician is blinded in the name of research.

Kireet Joshi, b. 1931, Indian philosopher and educationist; contributed articles.

First published in 1966. Professor Dryer has furnished a highly illuminating account of Kant’s _Critique of Pure Reason _by unfolding its central argument. _Kant’s Solution for Verification in Metaphysics _brings out the light which Kant has to throw on central topics of philosophy. It takes its place as an indispensable guide to every student of the _Critique of Pure Reason. _.

In 1885, during initial discussions of J. C. Maxwell's celebrated thermodynamic demon, Whiting (1) observed that the demon-like velocity selection of molecules can occur in a gravitationally bound gas. Recently, a gravitational Maxwell demon has been proposed which makes use of this observation [D. P. Sheehan, J. Glick, and J. D. Means, Found. Phys. 30, 1227 (2000)]. Here we report on numerical simulations that detail its microscopic phase space structure. Results verify the previously hypothesized mechanism of its paradoxical behavior. This (...) system appears to be the only example of a fully classical mechanical Maxwell demon that has not been resolved in favor of the second law of thermodynamics. (shrink)

Originally published in 1936, this book presents the ancient Greek text of the paraphrases and quotations of Zeno's philosophical arguments, together with a facing-page English translation and editorial commentary. Detailed notes are incorporated throughout and a bibliography is also included. This book will be of value to anyone with an interest in Zeno and ancient philosophy.

Little is known about distance processing in patients with posterior brain damage. Although many investigators have claimed that distance estimates are normal or abnormal in some of these patients, many of these observations were made informally and the examiners often asked for relative, and not absolute, distance estimates. The present investigation served two purposes. First, we wanted to contrast the use of distance information in peripersonal space for perceptual report as opposed to visuomotor control in our visual form agnosic patient, (...) DF. Second, we wanted to see to what extent her abilities to process distance cues were dependent on binocular vision, in light of Milner et al.'s (1991) observations of preserved stereopsis in DF, and Dijkerman et al.'s (1996) and Marotta et al.'s (1997) observations that her visual guidance of grasping may be particularly dependent on binocular vision of the target. We hypothesized that DF's visuomotor responses would show normal sensitivity to target distance, while her perceptual estimates would not. In the first experiment, we required DF and two age- and sex-matched control subjects to reach out and grasp black cubes placed at varying distances, or to estimate the distance of the cubes from the hand starting position without making a reaching movement. In the second experiment, we required DF and two age-matched control subjects to point as rapidly and accurately as possible to small LED targets which differed in spatial location, under binocular and monocular conditions. The results showed that, relative to the control subjects, DF's grasping movements produced normal peak velocity-distance scaling-when she reached for blocks which varied in depth or pointed to LED targets which were presented at different distances in depth. In contrast, in the cube experiment, her verbal estimates of object distance were poorly scaled, although they improved slightly under the binocular conditions. The results are discussed in terms of current theories of processing streams in extrastriate visual cortex and the distinction between categorical and coordinate spatial processing. (shrink)

A recently formulated concept of stochastic localizability is shown to be consistent with a concept of stochastic microcausality, which avoids the conclusions of Hegerfeldt's no-go theorem as to the inconsistency of sharp localizability of quantum particles and Einstein causality. The proposed localizability on quantum space-time is shown to lead to strict asymptotic causality. For finite time evolutions, upper bounds on propagation to the exterior of stochastic light cones are derived which show that the resulting probabilities are too small to be (...) actually observable in a realistic context. (shrink)

This is an intellectual biography of Benjamin Kidd, a leading Social Darwinist in the years before World War I, and a social prophet in the tradition of Comte and Spencer. His first book Social Evolution, published in 1894, was an immediate and enormous success around the world. In it, Kidd developed a collectivist form of Social Darwinism in tune with the values of Progressivism in America and the 'new liberalism' in Britain. By many it was regarded as the basis for (...) a properly scientific sociology, and the combination of its claims to scientific methodology, with an emphasis on non-rational forces as the agents of progress accurately caught the temper of its times. Launched on his career as a writer, Kidd's subsequent books and journalism continued to exercise extraordinary influence. His 'social imperialism', linking a bio-political defence of empire with a programme of social reform, won currency in the Anglo-American world at a time of expansionary fervour. (shrink)

First published in 1966. Professor Dryer has furnished a highly illuminating account of Kant’s _Critique of Pure Reason _by unfolding its central argument. _Kant’s Solution for Verification in Metaphysics _brings out the light which Kant has to throw on central topics of philosophy. It takes its place as an indispensable guide to every student of the _Critique of Pure Reason. _.