In this note, we consider constraints on the physical possibility of transfinite Turing machines that arise from how one models the continuous structure of space and time in one's best physical theories. We conclude by suggesting a version of Church's thesis appropriate as an upper bound for physical computation given how space and time are modeled on our current physical theories.
This study examined the influence of corporate giving programs on the link between certain categories of corporate crime and corporate reputation. Specifically, firms that violate EPA and OSHA regulations should, to some extent, experience a decline in their reputations, while firms that contribute to charitable causes should see their reputations enhanced. The results of this study support both of these contentions. Further, the results suggest that corporate giving significantly moderates the link between the number of EPA and OSHA violations committed (...) by a firm and its reputation. Thus, while a firm's reputation can be diminished through its violation of various government regulations, the extent of the decline in reputation may be significantly reduced through charitable giving. (shrink)
Jerry Fodor has defended the claim that psychological theories should appeal to narrow rather than wide intentional properties. One of his arguments relies upon the cross contexts test, a test that purports to determine whether two events have the same causally relevant properties. Critics have charged that this test is too weak, since it counts certain genuinely explanatory relational properties in science as being causally irrelevant. Further, it has been claimed, the test is insensitive to the (...) fact that special scientific laws allow for exceptions which do not undermine those laws. This paper refines the cross contexts test to meet these objections while still allowing it to play its role in Fodor. (shrink)
William Alston’s Theory of Appearing has attracted considerable attention in recent years, both for its elegant interpretation of direct realism in light of the presentational character of perceptual experience and for its central role in his defense of the justificatory force of Christian mystical experiences. There are different ways to account for presentational character, however, and in this article we argue that a superior interpretation of direct realism can be given by a theory of perception as dynamic engagement. The conditions (...) for dynamic engagement are such that there can be no absolute discontinuity between individual perceptual experiences and more public forms of inquiry, and this requirement has radical consequences for the prima facie justificatory force of religious experience. (shrink)
This paper posits that organizational variables are the factors that lead to the moral decline of companies like Enron and Worldcom. The individuals involved created environments within the organizations that precipitated a spiral of unethical decision-making. It is proposed that at the executive level, it is the organizational factors associated with power and decision-making that have the critical influence on moral and ethical behavior. The study has used variables that were deemed to be surrogate measures of the ethical violations (OSHA (...) and EPA violations), the risky shift phenomenon (executive team size), banality of wrong-doing (reputation score for firms) and escalating commitment (tenure with the firm/change in revenue for declining firms). The research found that there were small correlations between ethical violations and the three organizational variables. (shrink)
Lewis signaling games illustrate how language might evolve from random behavior. The probability of evolving an optimal signaling language is, in part, a function of what learning strategy the agents use. Here we investigate three learning strategies, each of which allows agents to forget old experience. In each case, we find that forgetting increases the probability of evolving an optimal language. It does this by making it less likely that past partial success will continue to reinforce suboptimal practice. The learning (...) strategies considered here show how forgetting past experience can promote learning in the context of games with suboptimal equilibria. (shrink)
In a recent paper, Li et al. (Philos. Mag. 92 (2012) p.1006) used results of atomistic simulations to advance a growth mechanism of twinning in titanium based on the concept of two elementary twinning dislocations which nucleate and glide in pairs but separately and sequentially on two neighbouring planes. This new Comment was stimulated after A. Serra, D.J. Bacon and R.C. Pond privately raised concerns on this growth model to one of the present authors, H. El Kadiri, who This was (...) a co-author of the original paper (Philos. Mag. 92 (2012) p.1006). We repeated the simulations and obtained nearly the same simulations results as Li et al. However, after re-analysing these results, we have concluded that the extended extrinsic zonal dislocation mechanism claimed to be that for twin growth in titanium is in fact false, confirming the accuracy of the Comment by Serra et al that results of Li and co-authors were misinterpreted. (shrink)
Emotion regulation has the odd distinction of being a wildly popular construct whose scientific existence is in considerable doubt. In this article, we discuss the confusion about whether emotion generation and emotion regulation can and should be distinguished from one another. We describe a continuum of perspectives on emotion, and highlight how different (often mutually incompatible) perspectives on emotion lead to different views about whether emotion generation and emotion regulation can be usefully distinguished. We argue that making differences in perspective (...) explicit serves the function of allowing researchers with different theoretical commitments to collaborate productively despite seemingly insurmountable differences in terminology and methods. (shrink)
Serra, Bacon and Pond argue that, when the direction of the resolved shear stress on the twinning plane is reversed, the K 2 plane for twinning changes from (0?0?0?1) to , and the core structure, configuration and magnitude of the twinning dislocation change from b ±1 to b ±3. I contend that such behaviour has not been observed in any twinning mode in metals. A twinning mode should have a K 2 plane and the corresponding twinning dislocation that is structurally (...) and energetically favourable and independent of the direction of the resolved shear stress. El Kadiri and Barrett echo the Comment by Serra et al. and argue that the one-layer twinning dislocation is an ?artifact?, disregarding the fact that all the simulation results converge to one conclusion, i.e. the one-layer twinning dislocation is more favourable than the three-layer zonal dislocation, irrespective of the interatomic potentials used in the simulations. In this Reply, I seek to clarify such misinterpretations regarding twinning dislocation, twinning shear and shuffling in these Comments. (shrink)
This book is a discussion of the Everett relative-state interpretation of quantum mechanics and related “no collapse” interpretations. The book presumes that its readers will have some familiarity with quantum mechanics and with the interpretational issues connected with it. It would be suitable for use in an introductory graduate course on the philosophy of quantum mechanics, although even experts are likely to enjoy its clear summaries of the material in its purview.
This is a comment on J. A. Barrett's article 'The Preferred-Basis Problem and the Quantum Mechanics of Everything' (), which concerns theories postulating that certain quantum observables have determinate values, corresponding to additional (often called 'hidden') variables. I point out that it is far from clear, for most observables, what such a postulate is supposed to mean, unless the postulated additional variable is related to a clear ontology in space-time, such as particle world lines, string world sheets, or fields.
In recent years, philosophical discussions of free will have focused largely on whether or not free will is compatible with determinism. In this challenging book, David Hodgson takes a fresh approach to the question of free will, contending that close consideration of human rationality and human consciousness shows that together they give us free will, in a robust and indeterministic sense. In particular, they give us the capacity to respond appositely to feature-rich gestalts of conscious experiences, in ways that are (...) not wholly determined by laws of nature or computational rules. The author contends that this approach is consistent with what science tells us about the world; and he considers its implications for our responsibility for our own conduct, for the role of retribution in criminal punishment, and for the place of human beings in the wider scheme of things. -/- Praise for David Hodgson's previous work, The Mind Matters -/- "magisterial...It is balanced, extraordinarily thorough and scrupulously fair-minded; and it is written in clear, straightforward, accessible prose." --Michael Lockwood, Times Literary Supplement -/- "an excellent contribution to the literature. It is well written, authoritative, and wonderfully wide-ranging. ... This account of quantum theory ... will surely be of great value. ... On the front cover of the paper edition of this book Paul Davies is quoted as saying that this is "a truly splendid and provocative book". In writing this review I have allowed myself to be provoked, but I am happy to close by giving my endorsement to this verdict in its entirety!" --Euan Squires, Journal of Consciousness Studies -/- "well argued and extremely important book." --Sheena Meredith, New Scientist -/- "His reconstructions and explanations are always concise and clear." --Jeffrey A Barrett, The Philosophical Review -/- "In this large-scale and ambitious work Hodgson attacks a modern orthodoxy. Both its proponents and its opponents will find it compelling reading." --J. R. Lucas, Merton College, Oxford. (shrink)
Introduction -- Wittgenstein's early conception of value -- An outline of tractarian ontology -- Value, the self, and the mystical -- The lecture on ethics -- Language-games, the private language argument and aspect psychology -- Language-games -- The private language argument -- Aspect psychology -- The soul and attitudes towards the living -- Wittgenstein's general conception of the soul -- Ilham Dilman on the soul and seeing-as -- Religious contexts -- J.B. Watson and the denial of the soul -- Attitudes (...) towards other minds and forms of life -- The soul and the face -- Aspect blindness and dawning -- Particularism, rule-following, and evaluations -- David McNaughton on the property of humanity and particularism -- John McDowell on rule-following and values -- Peter Winch on moral particularism -- The meaning and value of the religious point of view -- Wittgenstein on Frazer's golden bough -- Truth in religion -- Wittgenstein on art : reactions and causes -- Aesthetics, causes, and natural history -- A contemporary evolutionary account of aesthetic value -- Neuro-scientific accounts -- Aesthetic realism and the definition of art -- Aesthetic historicism and relativism -- Institutional and historical theories of art -- Forms of life, moral truth, and justification -- Cora Diamond on forms on seeing-as theory and imagination -- Paul Johnston on moral justification and truth -- D.Z. Phillips and H.O. Mounce on the justification of morality -- Doubt and certainty : framework beliefs and core values -- An overview of certainty -- Avrum Stroll, Anthony O'Hear , and Cyril Barrett on certainty and value -- Cultural relativism and institutional embodiment -- Peter Winch on cultural relativism -- Sabina Lovibond on moral facts and institutional embodiment -- Cyril Barrett on cultural relativism -- Conclusion: How to do things with Wittgenstein. (shrink)
Nature of the problem: Testimony from scientists. Reflex action and theism (1881) by W. James. The organization of thought (1916) by A.N. Whitehead. The changing scientific scene 1900-1950 (1952) by J.B. Conant. A note on methods of analysis (1943) by H.J. Muller. The way things are (1959) by P.W. Bridgman. A definition of style (1948) by J.R. Oppenheimer.--Consequences of the problem: Testimony from artists and writers. Existentialism (1947) by J.-P. Sartre. The testimony of modern art (1957) by W. Barrett. (...) Parts of speech and punctuation (1935) by G. Stein. The waves (1931) by V. Woolf. The imperfect paradise, by W. Stevens. A note on style and the limits of language, by W. Gibson. (shrink)
The principal features of the experimental results of Blewitt et al. (1957) and of Suzuki and Barrett (1958) on deformation twinning in face-centred cubic metals are explained in terms of an extension of the ?prismatic? source mechanism of Cottrell and Bilby (1951). Suitable prismatic dislocation sources are thought to be long jogs in the dislocations of the two conjugate slip systems in a work-hardened metal and prismatic dislocation loops produced by vacancy condensation in a neutron-irradiated metal. The dissociation of (...) slip dislocations is also considered and is found to be an unlikely mechanism for the production of deformation twins in copper, silver or gold. (shrink)
Ranking systems such as The Times Higher Education’s World University Rankings and Shanghai Jiao Tong University’s Academic Rankings of World Universities simultaneously mark global status and stimulate global academic competition. As international ranking systems have become more prominent, researchers have begun to examine whether global rankings are creating increased inequality within and between universities. Using a panel Tobit regression analysis, this study assesses the extent to which markers of inter-institutional stratification and organizational segmentation predict global status among US research universities (...) as measured by position in ARWU. Findings indicate some support that both inter-institutional stratification and organizational segmentation predict global status. (shrink)
The Barrett and Arntzenius (1999) decision paradox involves unbounded wealth, the relationship between period-wise and sequence-wise dominance, and an infinite-period split-minute setting. A version of their paradox involving bounded (in fact, constant) wealth decisions is presented, along with a version involving no decisions at all. The common source of paradox in BarrettâArntzenius and these other examples is the indeterminacy of their infinite-period split-minute setting.
Rendell and Whitehead's thorough review dispels notions that culture is an exclusive faculty of humans and higher primates. We applaud the authors, but differ with them regarding the evolution of cetacean culture, which we argue resulted from the availability of abundant but spatially and temporally patchy prey such as schooling fish. We propose two examples of gene-culture coevolution: (1) acoustic abilities and acoustic traditions, and (2) transmission of environmental information and longevity.
Carlo Rovelli's relational interpretation of quantum mechanics holds that a system's states or the values of its physical quantities as normally conceived only exist relative to a cut between a system and an observer or measuring instrument. Furthermore, on Rovelli's account, the appearance of determinate observations from pure quantum superpositions happens only relative to the interaction of the system and observer. Jeffrey Barrett () has pointed out that certain relational interpretations suffer from what we might call the ‘determinacy problem', (...) but Barrett misclassifies Rovelli's interpretation by lumping it in with Mermin's view, as Rovelli's view is quite different and has resources to escape the particular criticisms that Barrett makes of Mermin's view. Rovelli's interpretation still leaves us with a paradox having to do with the determinacy of measurement outcomes, which can be accepted only if we are willing to give up on certain elements of the ‘absolute’ view of the world. (shrink)
David Buller's recent book, Adapting Minds, is a philosophical critique of the field of evolutionary psychology. Buller argues that evolutionary psychology is utterly bankrupt from both a theoretical and an empirical point of view. Although Adapting Minds has been well received in both the academic press and the popular media, we argue that Buller's critique of evolutionary psychology fails.
Increasingly, epistemologists are becoming interested in social structures and their effect on epistemic enterprises, but little attention has been paid to the proper distribution of experimental results among scientists. This paper will analyze a model first suggested by two economists, which nicely captures one type of learning situation faced by scientists. The results of a computer simulation study of this model provide two interesting conclusions. First, in some contexts, a community of scientists is, as a whole, more reliable when its (...) members are less aware of their colleagues' experimental results. Second, there is a robust tradeoff between the reliability of a community and the speed with which it reaches a correct conclusion. ‡The author would like to thank Brian Skyrms, Kyle Stanford, Jeffrey Barrett, Bruce Glymour, and the participants in the Social Dynamics Seminar at University of California–Irvine for their helpful comments. Generous financial support was provided by the School of Social Science and Institute for Mathematical Behavioral Sciences at UCI. †To contact the author, please write to: Department of Philosophy, Baker Hall 135, Carnegie Mellon University, Pittsburgh, PA 15213-3890; e-mail: firstname.lastname@example.org. (shrink)
A medical student's ability to present a case history is a critical skill that is difficult to teach. Case histories presented without theatrical engagement may fail to catch the attention of their intended recipients. More engaging presentations incorporate ‘stage presence’, eye contact, vocal inflection, interesting detail and succinct, well organised performances. They convey stories effectively without wasting time. To address the didactic challenge for instructing future doctors in how to ‘act’, the Mayo Medical School and The Mayo Clinic Center for (...) Humanities in Medicine partnered with the Guthrie Theater to pilot the programme ‘Telling the Patient's Story’. Guthrie teaching artists taught storytelling skills to medical students through improvisation, writing, movement and acting exercises. Mayo Clinic doctors participated and provided students with feedback on presentations and stories from their own experiences in patient care. The course's primary objective was to build students' confidence and expertise in storytelling. These skills were then applied to presenting cases and communicating with patients in a fresher, more engaging way. This paper outlines the instructional activities as aligned with course objectives. Progress was tracked by comparing pre-course and post-course surveys from the seven participating students. All agreed that the theatrical techniques were effective teaching methods. Moreover, this project can serve as an innovative model for how arts and humanities professionals can be incorporated for teaching and professional development initiatives at all levels of medical education. (shrink)