The neural transplantation research described by Sinden and colleagues provides part of the rationale for the clinical application of neural transplantation. The authors are asked to clarify their view of the role of the cholinergic system in cognition, to address extrahippocampal damage caused by transient forebrain ischemia, and to consider the effects of delayed neural degeneration in their structure-function analysis.

Hertwig and Ortmann suggest methodological practices from economics (script enactment, repeated measures, performance based payments, and absence of deception) for psychology. Such prescriptive methodologies may be unrepresentative of real world behaviors because people are not: always behaving with complete information, monetarily rewarded for important activities, repeating tasks to perfection, aware of all contributing variables. These proscriptions, while useful in economics, may obfuscate important psychological phenomena.

We are not convinced by Gangestad & Simpson that differential mating strategies within each sex would be greater than such strategies between sexes. The target article does not provide actual evidence of human males who do not desire mating with multiple females, or evidence that the benefits for females of short-term matings with multiple males have ever outweighed the associated costs.

Although information-processing theories cannot provide a full explanatory account of P-consciousness, there is less conflation and confusion in cognitive psychology than Block suspects. Some of the reasoning that Block criticises can be interpreted plausibly in the light of a folk psychological view of the relation between P-consciousness and A-consciousness.

The COVID-19 pandemic has raised a host of ethical challenges, but key among these has been the possibility that health care systems might need to ration scarce critical care resources. Rationing p...

To analyze the relations between art and science, philosophers and historians have developed different lines of inquiry. A first type of inquiry considers how artistic and scientific practices have interacted over human history. Another project aims to determine the contributions that scientific research can make to our understanding of art, including the contributions that cognitive science can make to philosophical questions about the nature of art. We rely on contributions made to these projects in order to demonstrate that art and (...) science are codependent phenomena. Specifically, we explore the codependence of art and science in the context of a historical analysis of their interactions and in the context of contemporary debates on the cognitive science of art. (shrink)

Hospital systems commonly face the challenge of determining just ways to allocate scarce drugs during national shortages. There is no standardised approach of how this should be instituted, but principles of distributive justice are commonly used so that patients who are most likely to benefit from the drug receive it. As a result, clinical indications, in which the evidence for the drug is assumed to be established, are often prioritised over research use. In this manuscript, we present a case of (...) a phase II investigational trial of intravenous thiamine for delirium prevention in patients undergoing haematopoietic stem cell transplantation to emphasise several shortcomings in the overarching prioritisation of clinical over research uses of scarce drugs. Specifically, we present the following considerations: clinical use may not have stronger evidence than research use; a strong scientific rationale for research use may outweigh the claim for clinical indications in which there is weak evidence; treatment within the context of a clinical trial may be the standard of care; and research use may not only benefit patients receiving the treatment but also offers the prospect of improving future clinical care. In summary, we argue against allocation schemes that prohibit all research uses of scarce drugs and instead recommend that allocation schemes include a balanced approach that weighs risks and benefits of access to scarce drugs irrespective of the research versus clinical use designation. (shrink)

An inquiry into the nature of the universe draws out the implications of the quantum theory and argues that our universe is only one among many possible universes and that other universes may exist.

Recent empirical work has offered strong support for ‘biased pluralism’ and ‘economic elite’ accounts of political power in the United States, according a central role to ‘business interest groups’ as a mechanism through which corporate influence is exerted. Here, we propose an additional channel of influence for corporate interests: the ‘policy-planning network,’ consisting of corporate-dominated foundations, think tanks, and elite policy-discussion groups. To evaluate this assertion, we consider one key policy-discussion group, the Council on Foreign Relations. We first briefly review (...) the origins of this organization and then review earlier findings on its influence. We then code CFR policy preferences on 295 foreign policy issues during the 1981–2002 period. In logistic regression analyses, we find that the preferences of more affluent citizens and the CFR were positive, statistically significant predictors of foreign policy outcomes while business interest group preferences were not. These findings are discussed with a consideration of the patterns of CFR ‘successes’ and ‘failures’ for the issues in our dataset. Although a full demonstration of a causal connection between corporate interests, the policy-planning network and policy outcomes requires further research, we conclude that this has been shown to be a plausible mechanism through which corporate interests are represented and that ‘biased pluralism’ researchers should include it in their future investigations. (shrink)

Paul Davies explains the significance of the amazing quantum universe, where fact is stranger than any science fiction. He takes us into a world where commonsense notions of space, time, and causality must be left behind as the realm of solid matter dissolves into vibrating patterns of ghostly energy, and where mind and matter are interwoven in a subtle and holistic manner. An Australian physicist and author of GOD AND THE NEW PHYSICS, Davies writes for the lay reader in simple (...) language. (shrink)

At the beginning of Sein und Zeit, Martin Heidegger raises the question “What is the meaning of Being?”. In a celebrated review of Heidegger, Gilbert Ryle observes that, though some would quarrel with the assumption “that there is a problem about the Meaning of Being,” he, for the moment, will not. Why not? Because, says Ryle, the “question of the relation between Being qua timeless ‘substance’ and existing qua existing in the world of time and space seems to me a (...) real one.”. (shrink)

This book is a survey of the range of apparently miraculous accidents of nature that have enabled the universe to evolve its familiar structures (atoms, stars, galaxies, and life itself) concludes with an investigation of the so-called anthropic principle.

New Blackfriars, Volume 103, Issue 1106, Page 433-435, July 2022.

New Blackfriars, Volume 103, Issue 1104, Page 165-169, March 2022.

Astrobiologists are aware that extraterrestrial life might differ from known life, and considerable thought has been given to possible signatures associated with weird forms of life on other planets. So far, however, very little attention has been paid to the possibility that our own planet might also host communities of weird life. If life arises readily in Earth-like conditions, as many astrobiologists contend, then it may well have formed many times on Earth itself, which raises the question whether one or (...) more shadow biospheres have existed in the past or still exist today. In this paper, we discuss possible signatures of weird life and outline some simple strategies for seeking evidence of a shadow biosphere. Key Words: Weird life—Multiple origins of life—Biogenesis—Biomarkers—Extremophiles—Alternative biochemistry. Astrobiology 9, 241–249. (shrink)

There have been many claims that quantum mechanics plays a key role in the origin and/or operation of biological organisms, beyond merely providing the basis for the shapes and sizes of biological molecules and their chemical affinities. These range from Schr¨odinger’s suggestion that quantum fluctuations produce mutations, to Hameroff and Penrose’s conjecture that quantum coherence in microtubules is linked to consciousness. I review some of these claims in this paper, and discuss the serious problem of decoherence. I advance some further (...) conjectures about quantum information processing in bio-systems. Some possible experiments are suggested. © 2004 Elsevier Ireland Ltd. All rights reserved. (shrink)

In this sweeping survey, acclaimed science writers Paul Davies and John Gribbin provide a complete overview of advances in the study of physics that have revolutionized modern science. From the weird world of quarks and the theory of relativity to the latest ideas about the birth of the cosmos, the authors find evidence for a massive paradigm shift. Developments in the studies of black holes, cosmic strings, solitons, and chaos theory challenge commonsense concepts of space, time, and matter, and demand (...) a radically altered and more fully unified view of the universe. (shrink)

Institute of Theoretical Astronomy, University of Cambridge, Cambridge, UK 3fS. received 28th August 1970, in final revised form 1st July 1971..

Paperback reissue of a book first published in 1991. The authors demonstrate how the materialistic and mechanistic world-view that has dominated western culture and science during the last few centuries is being challenged by the findings of modern physics, ranging from relativity to quantum physics. Includes a bibliography and an index. British-born, Davies is a well-known physicist and has written many other books including 'The Mind of God', winner of the 1992 Eureka Science Book Prize. He is currently professor of (...) mathematical physics at the University of Adelaide. Gribbin trained as an astrophysicist and is now a full-time science writer in Britain. (shrink)

Davis demonstrates how Simone Weil's Marxism challenges current neoliberal understandings of the self and of human rights. Explaining her related critiques of colonialism and of political parties, it presents Weil as a twentieth-century political philosopher who anticipated and critically responded to the most contemporary political theory.

Using a model quantum clock, I evaluate an expression for the time of a nonrelativistic quantum particle to transit a piecewise geodesic path in a background gravitational field with small spacetime curvature (gravity gradient), in the case that the apparatus is in free fall. This calculation complements and extends an earlier one (Davies 2004) in which the apparatus is fixed to the surface of the Earth. The result confirms that, for particle velocities not too low, the quantum and classical transit (...) times coincide, in conformity with the principle of equivalence. I also calculate the quantum corrections to the transit time when the de Broglie wavelengths are long enough to probe the spacetime curvature. The results are compared with the calculation of Chiao and Speliotopoulos (2003), who propose an experiment to measure the foregoing effects. (shrink)

of a logarithmic time dependence of the fine structure constant is apparently within the limits discussed if there is a corresponding logarithmic time dependence of the strong coupling constant also. Moreover the recent discover> of naturally occurring ' Pu places the Gamow hypothesis of e' r much nearer the allov'able limits than had previously been supposed.

Alexis de Tocqueville asserted that America had no truly great literature, and that American writers merely mimicked the British and European traditions of the eighteenth and nineteenth centuries. This new edited collection masterfully refutes Tocqueville's monocultural myopia and reveals the distinctive role American poetry and prose have played in reflecting and passing judgment upon the core values of American democracy. The essays, profiling the work of Mark Twain, F. Scott Fitzgerald, John Updike, Edith Wharton, Walt Whitman, Henry James, Willa Cather, (...) Walker Percy, and Tom Wolfe, reveal how America's greatest writers have acted as society's most ardent cheerleaders and its most penetrating critics. Christine Dunn Henderson's exciting new work offers literature as a portal through which to view the philosophical principles that animate America's political order and the mores which either reinforce or undermine them. (shrink)

Engaging a broad range of Platonic dialogues, this collection of essays by distinguished scholars in political theory and philosophy explores the relation of Socratic philosophizing to those activities with which it is typically opposed—such as tyranny, sophistry, poetry, and rhetoric. The essays show that the harder one tries to disentangle Socrates’ own activity from that of its apparent opposite, the more entangled they become; yet, it is only by taking this entanglement seriously that the distinctive character of Socratic philosophy emerges. (...) The collection sheds new light on the ways in which Plato not only represents philosophy in relation to what it is not, but also makes it “strange” to itself. (shrink)

Weak measurements offer new insights into the behavior of quantum systems. Combined with post-selection, quantum mechanics predicts a range of new experimentally testable phenomena. In this paper I consider weak measurements performed on time-dependent pre- and post-selected ensembles, with emphasis on the decay of excited states. The results show that the standard exponential decay law is a limiting case of a more general law that depends on both the time of post-selection and the choice of final state. The generalized law (...) is illustrated for two interesting choices of post-selection. (shrink)

Recent advances in string theory and inflationary cosmology have led to a surge of interest in the possible existence of an ensemble of cosmic regions, or “universes”, among the members of which key physical parameters, such as the masses of elementary particles and the coupling constants, might assume different values. The observed values in our cosmic region are then attributed to an observer selection effect (the so-called anthropic principle). The assemblage of universes has been dubbed “the multiverse”. In this paper (...) we review the multiverse concept and the criticisms that have been advanced against it on both scientific and philosophical grounds. (shrink)

The generalized second law of thermodynamics states that entropy always increases when all event horizons are attributed with an entropy proportional to their area. We test the generalized second law by investigating the change in entropy when dust, radiation and black holes cross a cosmological event horizon. We generalize for flat, open and closed Friedmann–Robertson–Walker universes by using numerical calculations to determine the cosmological horizon evolution. In most cases, the loss of entropy from within the cosmological horizon is more than (...) balanced by an increase in cosmological event horizon entropy, maintaining the validity of the generalized second law of thermodynamics. However, an intriguing set of open universe models shows an apparent entropy decrease when black holes disappear over the cosmological event horizon. We anticipate that this apparent violation of the generalized second law will disappear when solutions are available for black holes embedded in arbitrary backgrounds. (shrink)