This monograph introduces the functional characteristics and conceptual significance of a simulation software system called CyberRat (Ray, 1996a, 2003a, 2012a, 2012b). CyberRat expands upon prior illustrations (Ray & Delprato, 1989; Ray, 1992) of how such computer-based simulations can serve to formatively enhance, and eventually validate, the descriptive research methodology upon which their development relies. To illustrate this process I also review highlights of previous publications (cf. Ray & Brown, 1975, 1976; Ray & Delprato, 1989), detailing the unique research methodology used (...) to collect data that guided CyberRat’s development. This methodology integrates interbehavioral psychology (Kantor, 1959) and general systems analysis (von Bertalanffy, 1968), and thus is referred to as interbehavioral systems analysis (IBSA). CyberRat’s validation of IBSA methods involves a process analogous to Turing’s (1950) famous test for simulation authenticity, in that it relies upon “phenomenological equivalence” criteria for observers to compare experiences of real vs. simulated events. And because IBSA stresses three convergent strategies for research, including structural analysis, functional analysis, and operations analysis, my organizing theme addresses how closely CyberRat comes to passing a trilogy of hypothetical Turing tests—one for each of these three analytic strategies. (shrink)

Professor Sir Roger Penrose's work, spanning fifty years of science, with over five thousand pages and more than three hundred papers, has been collected together for the first time and arranged chronologically over six volumes, each with an introduction from the author. Where relevant, individual papers also come with specific introductions or notes. This sixth volume describes an actual experiment to measure the length of time that a quantum superposition might last (developing the Diósi-Penrose proposal). It also discusses the significant (...) progress made in relation to incorporating the 'googly' information for a gravitational field into the structure of a curved twistor space. Penrose also covers such things as the geometry of light rays in relation to twistor-space structures, the utility of complex numbers in drawing three-dimensional shapes, and the geometrical representation of different types of musical scales. The turn of the millennium was also an opportunity to reflect on progress in many areas up until that point. (shrink)

This book assesses how Vatican II opened up the Catholic Church to encounter, dialogue, and engagement with other world religions. Opening with a contribution from the President of the Pontifical Council for Interreligious Dialogue, Cardinal Jean-Louis Tauran, it next explores the impact, relevance, and promise of the Declaration Nostra Aetate before turning to consider how Vatican II in general has influenced interfaith dialogue and the intellectual and comparative study of world religions in the postconciliar decades, as well as the contribution (...) of particular past and present thinkers to the formation of current interreligious and comparative theological methods. Additionally, chapters consider interreligious dialogue vis-à-vis theological anthropology in conciliar documents; openness to the spiritual practices of other faith traditions as a way of encouraging positive interreligious encounter; the role of lay and new ecclesial movements in interreligious dialogue; and the development of Monastic Interreligious Dialogue. Finally, it includes a range of perspectives on the fruits and future of Vatican’s II’s opening to particular faiths such as Judaism, Islam, Hinduism, and Buddhism. (shrink)

The modern corpuscular theory of radiation was born in 1905 when Einstein advanced his light quantum hypothesis; and the steps by which Einstein's hypothesis, after years of profound scepticism, was finally and fully vindicated by Arthur Compton's 1922 scattering experiments constitutes one of the most stimulating chapters in the history of recent physics. To begin to appreciate the complexity of this chapter, however, it is only necessary to emphasize an elementary but very significant point, namely, that while Einstein based his (...) arguments for quanta largely on the behaviour of high-frequency black body radiation or ultra-violet light, Compton experimented with X-rays. A modern physicist accustomed to picturing ultra-violet light and X-radiation as simply two adjacent regions in the electromagnetic spectrum might regard this distinction as hair-splitting. But who in 1905 was sure that X-rays and γ-rays are far more closely related to ultra-violet light than to α-particles, for example? This only became evident after years of painstaking research, so that moving without elaboration from Einstein's hypothesis to Compton's experiments automatically eliminates from consideration an important segment of history—a segment in which a major role was played by William Henry Bragg. (shrink)

ROGER SCRUTON’s An Intelligent Person’s Guide to Philosophy takes a personal and provocative look at the subject—those abstract, but nevertheless practical, problems that concern anyone who has reflected on his or her life. Of special delight is his discussion of sex and music. I make some brief critical comments on this based on new economic approaches.

The author contends that the Objectivist epistemology has lacked a viable model of propositional knowledge for nearly fifty years, due to neglect of Rand's unit-perspective view of concepts. This pioneering insight, he says, not only is an essential building block of her concept theory, but also welds together the three levels of logical theory and provides the clearest X-ray picture of our multilayered conceptual knowledge. Using the unit-perspective to expand Rand's theory of concepts, the author then devises a theory of (...) the proposition, giving considerable attention to axioms and statements about nonexistent subjects. (shrink)

Conformal rescalings of spinors are considered, in which the factor Ω, inε AB ↦Ωε AB, is allowed to be complex. It is argued that such rescalings naturally lead to the presence of torsion in the space-time derivative▽ a. It is further shown that, in standard general relativity, a circularly polarized gravitational wave produces a (nonlocal) rotation effect along rays intersecting it similar to, and apparently consistent with, the local torsion of the Einstein-Cartan-Sciama-Kibble theory. The results of these deliberations are suggestive (...) rather than conclusive. (shrink)

JOHN SEARLE is clear, challenging and profound, and his book The Mystery of Consciousness reflects its author. It offers an engaging debate between Searle and David Chalmers, Daniel Dennett, Roger Penrose and Israel Rosenfield. Searle also touches on the work of Gerald Edelman and Francis Crick. Yet Searle does not always hit the target. For example, he confuses giving an explanation with giving an ultimate explanation in criticising Edelman's reentry mapping.

Members of the Ba2Zn1-xCdxTa2O9 series have been synthesized by solid state reactions at 1473 K. Powder x-ray diffraction studies show a cubic perovskite cell with a ~ 4.1 a which increases with increase in x. Electron diffraction studies show the presence of hexagonal ordered perovskite structure in addition to the cubic structure seen by x-rays, the x = 0.5 composition showing more ordered crystallites. These samples show high dielectric constants with a maximum for the x = 0.5 member. The dielectric (...) loss increases with increase in x at all the frequencies under study. (shrink)

The nm23 gene, a putative metastasis suppressor gene, was originally identified by its reduced expression in highly metastatic K‐1735 murine melanoma cell lines, as compared to related, low metastatic melanoma cell lines. Transfection of nm23 cDNA has been reported to suppress malignant progression in Drosophila and mammalian cells. Highly conserved homologues of nm23 have been found in organisms ranging from the prokaryote Myxococcus xanthus to Drosophila, where the gene is involved in normal development and differentiation. The product of the nm23 (...) gene exhibits a nucleoside diphosphate kinase activity, yet the nucleoside diphosphate kinase activity of Nm23 does not correlate with its apparent biological functions. We review recent cellular, genetic, biochemical and X‐ray crystallographic data to formulate and evaluate hypotheses concerning the molecular mechanism of nm23 action. (shrink)

It is a commonplace to observe that we have been living through an extraordinary pan-European and trans-Atlantic populist moment. But do the heterogeneous phenomena lumped under the rubric “populist” in fact belong together? Or is “populism” just a journalistic cliché and political epithet? In the first part of the article, I defend the use of “populism” as an analytic category and the characterization of the last few years as a “populist moment,” and I propose an account of populism as a (...) discursive and stylistic repertoire. In the second part, I specify the structural trends and the conjunctural convergence of a series of crises that jointly explain the clustering in space and time that constitutes the populist moment. The question in my title is thus twofold: it is a question about populism as a term or concept and a question about populism as a phenomenon in the world. The article addresses both the conceptual and the explanatory question, limiting the scope of the explanatory argument to the pan-European and trans-Atlantic populist conjuncture of the last few years. (shrink)

Biological dysfunction is regarded, in many accounts, as necessary and perhaps sufficient for disease. But although disease is conceptualized as all-or-nothing, biological functions often differ by degree. A tension is created by attempting to use a continuous variable as the basis for a categorical definition, raising questions about how we are to pinpoint the boundary between health and disease. This is the line-drawing problem. In this paper, we show how the line-drawing problem arises within “dysfunction-requiring” accounts of disease, such as (...) those of Christopher Boorse and Jerome Wakefield. We then provide several detailed examples to establish that biological dysfunction cannot provide a boundary. We examine potential ways of resolving the line-drawing problem, either by dropping one of the claims that generates it, or by appealing to additional criteria. We argue that two of these options are plausible, and that each of these can be applied with regard to different diseases. (shrink)

That being than which a greater cannot be conceived.' This was the way in which the living God of biblical tradition was described by the great Medieval philosophers such as Augustine, Anselm and Aquinas.Contemporary philosophers find much to question, criticise and reject in the traditional analysis of that description. Some hold that the attributes traditionally ascribed to God - simplicity, necessity, immutability, eternity, omniscience, omnipotence, creativity and goodness - are inherently incoherent individually, or mutually inconsistent. Others argue that the divinity (...) described by philosophers cannot be the same as the providential God of revelation.In Perfect Being Theology Katherin A. Rogers defends the traditional approach, considering contemporary criticisms but concluding that the most adequate account of the nature of God should build upon the foundation laid by the Medieval philosophers.Written in a lively and accessible style and offering an important historical perspective, this book covers key areas of contention and many of the major ideas and thinkers from all sides of the debate are included. (shrink)

In this paper we consider the use of cases in medical ethics research and teaching. To date, there has been little discussion about the consent or confidentiality requirements that ought to govern the use of cases in these areas. This is in marked contrast to the requirements for consent to publish cases in clinical journals, or to use personal information in research. There are a number of reasons why it might be difficult to obtain consent to use cases in ethics. (...) Many cases concern people who are incompetent, and thus unable to give consent. Often the material is of a sensitive nature, it is not clear who should give consent, or the ethicist has no access to those involved. We argue that the use of cases in ethics research and teaching can be justified by appeal to the public interest argument, and suggest a number of areas for discussion and clarification. (shrink)

Populist protests against Coronavirus-related restrictions in the US appear paradoxical in three respects. Populism is generally hostile to expertise, yet it has flourished at a moment when expertise has seemed more indispensable than ever. Populism thrives on crisis and indeed often depends on fabricating a sense of crisis, yet it has accused mainstream politicians and media of overblowing and even inventing the Corona crisis. Populism, finally, is ordinarily protectionist, yet it has turned anti-protectionist during the pandemic and challenged the allegedly (...) overprotective restrictions of the nanny-state. I address each apparent paradox in turn before speculating in conclusion about how populist distrust of expertise, antipathy to government regulation, and skepticism toward elite overprotectiveness may come together – in the context of intersecting medical, economic, political, and epistemic crises – in a potent and potentially dangerous mix. (shrink)

_The Undiscovered Dewey_ explores the profound influence of evolution and its corresponding ideas of contingency and uncertainty on John Dewey's philosophy of action, particularly its argument that inquiry proceeds from the uncertainty of human activity. Dewey separated the meaningfulness of inquiry from a larger metaphysical story concerning the certainty of human progress. He then connected this thread to the way in which our reflective capacities aid us in improving our lives. Dewey therefore launched a new understanding of the modern self (...) that encouraged intervention in social and natural environments but which nonetheless demanded courage and humility because of the intimate relationship between action and uncertainty. Melvin L. Rogers explicitly connects Dewey's theory of inquiry to his religious, moral, and political philosophy. He argues that, contrary to common belief, Dewey sought a place for religious commitment within a democratic society sensitive to modern pluralism. Against those who regard Dewey as indifferent to moral conflict, Rogers points to Dewey's appreciation for the incommensurability of our ethical commitments. His deep respect for modern pluralism, argues Rogers, led Dewey to articulate a negotiation between experts and the public so that power did not lapse into domination. Exhibiting an abiding faith in the reflective and contestable character of inquiry, Dewey strongly engaged with the complexity of our religious, moral, and political lives. (shrink)

Current practices of identifying and treating small indolent thyroid cancers constitute an important but in some ways unusual form of overdiagnosis. Overdiagnosis refers to diagnoses that generally harm rather than benefit patients, primarily because the diagnosed condition is not a harmful form of disease. Patients who are overdiagnosed with thyroid cancer are harmed by the psycho-social impact of a cancer diagnosis, as well as treatment interventions such partial or total thyroidectomy, lifelong thyroid replacement hormone, monitoring, surgical complications and other side (...) effects. These harms seem to outweigh any putative benefit of knowing about a cancer that would not have caused problems if left undiscovered. In addition to harms to patients, thyroid cancer overdiagnosis leads to significant opportunity costs at a societal level, due to costs of diagnosis and treatment. Unlike many other overdiagnosed cancers, accurate risk stratification is possible with thyroid cancer. At the individual patient level, use of this risk information might support informed choice and/or shared decision-making, as mandated by clinical ethics frameworks. And this approach might, to some extent, help to reduce rates of diagnosis and intervention. In practice, however, it is unlikely to stem the rising incidence and associated harms and costs of overdiagnosed thyroid cancer, especially in situations where health professionals have conflicts of interest. We argue in this article that thyroid cancer overdiagnosis may be usefully understood as a public health problem, and that some public health approaches will be readily justifiable and are more likely to be effective in minimising its harms. (shrink)

Digital hyperconnectivity is a defining fact of our time. In addition to recasting social interaction, culture, economics, and politics, it has profoundly transformed the self. It has created new ways of being and constructing a self, but also new ways of being constructed as a self from the outside, new ways of being configured, represented, and governed as a self by sociotechnical systems. Rather than analyze theories of the self, I focus on practices of the self, using this expression in (...) a looser, more general sense than that used by Foucault. I begin by considering and reformulating two early lines of argument about the web as a medium for exploring and emancipating the self. Subsequent sections show how digital hyperconnectivity has engendered new ways of objectifying, quantifying, producing, and regulating the self—considered both as active, reflexive practices and as systemic, data- and algorithm-driven processes. I conclude by reflecting on the broader implications of contemporary modes of governing the self and by underscoring the ways in which hyperconnectivity has colonized the territories of the self, conscripting the self into the service of techno-social systems. (shrink)

This paper argues that, in addition to humanitarian concerns, policies toward immigrants should also be shaped by recognition of special responsibilities toward some populations of noncitizens. National governments acquire such responsibilities in part through their histories of coercive impositions on those populations. Former imperial powers, in particular, often possess special obligations toward the inhabitants of their foreign colonies that go beyond their general humanitarian responsibilities. Those obligations might be met in various ways; but if national governments of wealthy, formerly imperial (...) states granted greater access for immigration to the poor of their former colonies, migration flows might significantly contribute to reductions in global levels of inequality. (shrink)

Michael Bergmann claims that all versions of epistemic internalism face an irresolvable dilemma. We show that there are many plausible versions of internalism that falsify this claim. First, we demonstrate that there are versions of ‘‘weak awareness internalism’’ that, contra Bergmann, do not succumb to the ‘‘Subject’s Perspective Objection’’ horn of the dilemma. Second, we show that there are versions of ‘‘strong awareness internalism’’ that do not fall prey to the dilemma’s ‘‘vicious regress’’ horn. We note along the way that (...) these versions of internalism do not, in avoiding one horn of the dilemma, succumb to the dilemma’s other horn. The upshot is that internalists have many available strategies for avoiding dilemmatic defeat. (shrink)

Anselm holds that God is timeless, time is tenseless, and humans have libertarian freedom. This combination of commitments is largely undefended incontemporary philosophy of religion. Here I explain Anselmian eternalism with its entailment of tenseless time, offer reasons for accepting it, and defend it against criticisms from William Hasker and other Open Theists. I argue that the tenseless view is coherent, that God’s eternal omniscience is consistent with libertarian freedom, that being eternal greatly enhances divine sovereignty, and that the Anselmian (...) view supports the contention that the Bible is relevant today far better than does Open Theism. (shrink)

In this prcis we focus on phenomena central to the reaction against similarity-based theories that arose in the 1980s and that subsequently motivated the approach to semantic knowledge. Specifically, we consider (1) how concepts differentiate in early development, (2) why some groupings of items seem to form or coherent categories while others do not, (3) why different properties seem central or important to different concepts, (4) why children and adults sometimes attest to beliefs that seem to contradict their direct experience, (...) (5) how concepts reorganize between the ages of 4 and 10, and (6) the relationship between causal knowledge and semantic knowledge. The explanations our theory offers for these phenomena are illustrated with reference to a simple feed-forward connectionist model. The relationships between this simple model, the broader theory, and more general issues in cognitive science are discussed. (shrink)

This paper introduces a special issue of Cognitive Science initiated on the 25th anniversary of the publication of Parallel Distributed Processing (PDP), a two-volume work that introduced the use of neural network models as vehicles for understanding cognition. The collection surveys the core commitments of the PDP framework, the key issues the framework has addressed, and the debates the framework has spawned, and presents viewpoints on the current status of these issues. The articles focus on both historical roots and contemporary (...) developments in learning, optimality theory, perception, memory, language, conceptual knowledge, cognitive control, and consciousness. Here we consider the approach more generally, reviewing the original motivations, the resulting framework, and the central tenets of the underlying theory. We then evaluate the impact of PDP both on the field at large and within specific subdomains of cognitive science and consider the current role of PDP models within the broader landscape of contemporary theoretical frameworks in cognitive science. Looking to the future, we consider the implications for cognitive science of the recent success of machine learning systems called “deep networks”—systems that build on key ideas presented in the PDP volumes. (shrink)