I analyze a number of the quantum no-signalling proofs (Ghirardi et al. 1980, Bussey 1982, Jordan 1983, Shimony 1985, Redhead 1987, Eberhard and Ross 1989, Sherer and Busch 1993). These purport to show that the EPR correlations cannot be exploited for transmitting signals, i.e., are not causal. First, I show that these proofs can be mathematically unified; they are disguised versions of a single theorem. Second, I argue that these proofs are circular. The essential theorem relies upon the tensor product (...) representation for combined systems, which has no physical basis in the von Neumann axioms. Historically, the construction of this representation scheme by von Neumann and Weyl built no-signalling assumptions into the quantum theory. Signalling between the wings of the EPR-Bell experiments is unlikely but is not ruled out empirically by the class of proofs considered. (shrink)
Cet ouvrage, composé de huit chapitres et de neuf appendices (qui contiennent des précisions utiles sur la méthode proposée), présente une thèse originale et controversée selon laquelle une structure musicale sous-tend les dialogues platoniciens, et en permet une plus riche compréhension. J. B. Kennedy s'appuie sur deux dialogues, le Banquet et l'Euthyphron pour la démontrer. Avant d'introduire sa méthodologie, il prend soin de tracer l'origine de ce type d'interprétation pour en défendre la pertinence. (…) - 12. Plato 12 (2012).
Kennedy shows that Plato gave his dialogues a similar musical structure, dividing each dialogue into twelve parts and inserting symbols at each twelfth to mark a musical note. These passages are either harmonious or dissonant and traverse the ups and downs of a known musical scale. Many of Plato's early followers insisted that Plato used symbols to conceal his own views within the dialogues, but modern scholars have denied this. Kennedy, an expert in Pythagorean mathematics and music theory, (...) is able to show that Plato's dialogues contain a system of symbols that are undetectable by those without knowledge of obsolete Greek mathematics. The book begins with a concise and accessible introduction to Plato's symbolic schemes and the role of allegory in ancient times. The author then annotates the musical symbols in two of Plato's most popular dialogues, the Symposium and Euthyphro, and shows that Plato used the musical scale as an outline for structuring his narratives. (shrink)
This introduction to one of the liveliest and most popular fields in philosophy is written specifically for a beginning readership with no background in philosophy or science. Step-by-step analyses of the key arguments are provided and the philosophical heart of the issues is revealed without recourse to jargon, maths, or logical formulas. The book introduces Einstein's revolutionary ideas in a clear and simple way, along with the concepts and arguments of philosophers, both ancient and modern that have proved of lasting (...) value. Specifically, the theories of the ancient Greek philosophers, Zeno, Euclid and Parmenides are considered alongside the ideas of Newton, Leibniz and Kant as well as the giants of twentieth-century physics, Einstein and Lorentz. The problems at the heart of the philosophy of space and time, such as change, motion, infinity, shape, and inflation, are examined and the seismic impact made by relativity theory and quantum theory is assessed in the light of the latest research. The writing is lucid and entertaining, allowing a beginning readership to grasp some difficult concepts while offering the more experienced reader a succinct and illuminating presentation of the state of the debate. "Space, Time and Einstein" shows the reader the excitement of scientific discovery and the beauty of theory in the search for answers to these fundamental questions. (shrink)
This introduction to one of the liveliest and most popular fields in philosophy is written specifically for a beginning readership with no background in philosophy or science. Step-by-step analyses of the key arguments are provided and the philosophical heart of the issues is revealed without recourse to jargon, maths, or logical formulas. The book introduces Einstein's revolutionary ideas in a clear and simple way, along with the concepts and arguments of philosophers, both ancient and modern that have proved of lasting (...) value. Specifically, the theories of the ancient Greek philosophers, Zeno, Euclid and Parmenides are considered alongside the ideas of Newton, Leibniz and Kant as well as the giants of twentieth-century physics, Einstein and Lorentz. The problems at the heart of the philosophy of space and time, such as change, motion, infinity, shape, and inflation, are examined and the seismic impact made by relativity theory and quantum theory is assessed in the light of the latest research. The writing is lucid and entertaining, allowing a beginning readership to grasp some difficult concepts while offering the more experienced reader a succinct and illuminating presentation of the state of the debate. "Space, Time and Einstein" shows the reader the excitement of scientific discovery and the beauty of theory in the search for answers to these fundamental questions. (shrink)
This guide is intended to be a comprehensive survey of Dewey's work. It consists of ten essays by Dewey scholars surveying an area of Dewey's work. Each essay is followed by a checklist of articles and books. The topics include divisions such as Dewey's Psychology, Philosophy and Philosophic Method, Logic and Theory of Knowledge, Ethics, etc. Contributors include Schneider, Hahn, Kennedy, Rucker, Leys, among others. Despite the enormous amount of work that must have gone into producing this volume, its (...) value is questionable. One reason for this is that Dewey's thought does not lend itself into such convenient divisions--it is difficult to think of a standard "topic" that isn't intertwined with some other. The novice may be bewildered by the rapid surveys and checklists. And scholars of Dewey and American philosophy may detect other groupings which they consider more illuminating. Although one can appreciate the desire not to reproduce the type of bibliography prepared by M. H. Thomas, a complete annotated bibliography would have been a much more helpful guide than the present one. Nevertheless the present guide does help the novice and the scholar to see important connections among the more than thousand items that make up the Dewey corpus.--R. J. B. (shrink)
The concepts of informed consent and surveillance of human research designed to protect human subjects is commendable. The regulations of the Institutional Review Board are having a major impact on clinical cancer research. There is greater administrative time needed of the investigator, the mechanisms of patient care have become cumbersome and some patients reject optional medical management that could be life saving. IRB regulations must be flexible to meet the needs of human subjects as well as those of the clinical (...) investigator. (shrink)
Adults and infants display a robust ability to perceive the unity of a center-occluded object when the visible ends of the object undergo common motion (e.g. Kellman, P.J., Spelke, E.S., 1983. Perception of partly occluded objects in infancy. Cognitive Psychology 15, 483±524). Ecologically oriented accounts of this ability focus on the primacy of motion in the perception of segregated objects, but Gestalt theory suggests a broader possibility: observers may perceive object unity by detecting patterns of synchronous change, of which common (...) motion is a special case. We investigated this possibility with observations of adults and 4-month-old infants. Participants viewed a center-occluded object whose visible surfaces were either misaligned or aligned, stationary or moving, and unchanging or synchronously changing in color or bright- ness in various temporal patterns (e.g. ¯ashing). Both alignment and common motion con- tributed to adults' perception of object unity, but synchronous color changes did not. For infants, motion was an important determinant of object unity, but other synchronous changes and edge alignment were not. When a stationary object with aligned edges underwent syn- chronous changes in color or brightness, infants showed high levels of attention to the object, but their perception of its unity appeared to be indeterminate. An inherent preference for fast over slow ¯ash rates, and a novelty preference elicited by a change in rate, both indicated that infants detected the synchronous changes, although they failed to use them as information for object unity. These ®ndings favor ecologically oriented accounts of object perception in which surface motion plays a privileged role. Ó 1999 Elsevier Science B.V. All rights reserved. (shrink)
: The transplantation of adult human neural stem cells into prenatal non-humans offers an avenue for studying human neural cell development without direct use of human embryos. However, such experiments raise significant ethical concerns about mixing human and nonhuman materials in ways that could result in the development of human-nonhuman chimeras. This paper examines four arguments against such research, the moral taboo, species integrity, "unnaturalness," and human dignity arguments, and finds the last plausible. It argues that the transfer of human (...) brain or retinal stem cells to nonhuman embryos would not result in the development of human-nonhuman chimeras that denigrate human dignity, provided such stem cells are dissociated. The article provides guidelines that set ethical boundaries for conducting such research that are consonant with the requirements of human dignity. (shrink)
This is the first book to offer the best essays, articles, and speeches on ethics and intelligence that demonstrate the complex moral dilemmas in intelligence collection, analysis, and operations. Some are recently declassified and never before published, and all are written by authors whose backgrounds are as varied as their insights, including Robert M. Gates, former Director of the Central Intelligence Agency; John P. Langan, the Joseph Cardinal Bernardin Professor of Catholic Social Thought at the Kennedy Institute of Ethics, (...) Georgetown University; and Loch K. Johnson, Regents Professor of Political Science at the University of Georgia and recipient of the Owens Award for contributions to the understanding of U.S. intelligence activities. Creating the foundation for the study of ethics and intelligence by filling in the gap between warfare and philosophy, this is a valuable collection of literature for building an ethical code that is not dependent on any specific agency, department, or country. (shrink)
In the paper I offer a brief sketch of one of the sources of utilitarianism. Our biological ancestry is a matter of fact that is not altered by the way we describe ourselves. With philosophical theories it is otherwise. Utilitarianism can be described in ways that make it look as if it is as old as moral philosophy – as J. S. Mill thought it was. For my historical purposes, it is more useful to have an account that brings out (...) what is specific about Benthamism and its descendants. Let us try to make do with the following. First, utilitarianism asserts that the fundamental requirement of morality is that we are to maximize good, for everyone and not just for the agent. This basic principle presupposes that it makes sense to think of aggregating goods to make a total, and of comparing amounts of good thus aggregated. Second, the good to be brought about is located in feelings of pleasure, and the evil to be avoided in feelings of pain. These feelings have inherent value or disvalue regardless of how they are caused to exist and regardless of their own consequences. Third, all moral principles can be derived from the requirement that good be maximized. The principles involved in evaluating agents as well as in giving moral direction to action are nothing but applications of the basic principle. (shrink)
After reviewing the foundations of special relativity and the room left for rival theories, a set of nonrelativistic para-Lorentzian transformations is derived uniquely, based on (a) a weaker first principle, (b) the requirement that the transformations sought do not give rise to the clock “paradox” (in a refined version), and (c) the compliance of the transformations with the classical experiments of Michelson-Morley, Kennedy-Thorndike, and Ives-Stilwell. The corresponding dynamics is developed. Most of the experimental support of special relativity is reconsidered (...) in the light of the new theory. It is concluded that the relativity of simultaneity has so far not been tested. (shrink)
Clinics and hospitals around the globe are offering stem cell treatments to persons with serious conditions for whom no effective therapies are available in their home countries. Many of these treatments, which are touted as cures for such conditions as Parkinson's and Alzheimer's Diseases, multiple sclerosis, and spinal cord injuries, have not gone through clinical trials that establish their safety and efficacy. Indeed, it is unclear whether some of them even utilize stem cells. State regulation of these therapies tends to (...) be weak or nonexistent in some of the countries in which they are offered. This puts those who believe they must travel abroad for stem cell treatments at risk of injury from procedures that .. (shrink)
Clozapine is a very effective drug with both significant benefits and significant risks in treatment-resistant schizophrenia. Informed consent is generally accepted as both desirable and necessary in order to ensure that the patient’s human rights and dignity are respected. Disclosure is a key element of informed consent. It is unclear if the adequate documentation of disclosure is standard practice before initiation of clozapine. The aim of this study was to assess the adequacy of the documentation of disclosure in consent to (...) clozapine treatment in an adult mental health service and to develop guidelines on disclosure. The method was a retrospective analysis of charts of patients given clozapine who received the drug through the pharmacy of a single North Dublin psychiatric hospital. Results show that current practice has evident gaps. The professional, ethical and legal issues are discussed. (shrink)
It is generally believed that the uncertainty relation Δq Δp≥1/2ħ, where Δq and Δp are standard deviations, is the precise mathematical expression of the uncertainty principle for position and momentum in quantum mechanics. We show that actually it is not possible to derive from this relation two central claims of the uncertainty principle, namely, the impossibility of an arbitrarily sharp specification of both position and momentum (as in the single-slit diffraction experiment), and the impossibility of the determination of the path (...) of a particle in an interference experiment (such as the double-slit experiment).The failure of the uncertainty relation to produce these results is not a question of the interpretation of the formalism; it is a mathematical fact which follows from general considerations about the widths of wave functions.To express the uncertainty principle, one must distinguish two aspects of the spread of a wave function: its extent and its fine structure. We define the overall widthW Ψ and the mean peak width wψ of a general wave function ψ and show that the productW Ψ w φ is bounded from below if φ is the Fourier transform of ψ. It is shown that this relation expresses the uncertainty principle as it is used in the single- and double-slit experiments. (shrink)
This article examines the characteristics of a new form of visibility which has become a pervasive feature of the modern world and which is linked to the development of communication media. With the development of the media, the visibility of individuals, actions and events is severed from the sharing of a common locale: one no longer has to be present in the same spatial-temporal setting in order to see the other or to witness an action or event. The rise of (...) this new form of mediated visibility has transformed the relations between visibility and power. Thanks to mediated visibility, political rulers are able to appear before their subjects in ways and on a scale that never existed previously. Skilful politicians exploit this to their advantage; with the help of their PR consultants and communications advisers, they seek to create and sustain a basis of support by managing their visibility in the mediated arena of modern politics. But mediated visibility is a double-edged sword: it also creates new risks for political leaders, who find themselves exposed to new kinds of dangers. Hence the visibility created by the media becomes the source of a new and distinctive kind of fragility. However much political leaders try to manage their visibility, they cannot completely control it: mediated visibility can slip out of their grasp and can, on occasion, work against them. (shrink)
Kantian autonomy is often thought to be independent of time and place, but J. B. Schneewind in his landmark study, The Invention of Autonomy, has shown that there is much to be learned by setting Kant's moral philosophy in the context of the history of modern moral philosophy. The distinguished authors in the collection continue Schneewind's project by relating Kant's work to the historical context of his predecessors and to the empirical context of human agency. This will be a valuable (...) resource for professionals and advanced students in philosophy, the history of ideas, and the history of political thought. (shrink)
At the heart of the debate over assisted suicide is the recognition that not all persons can be healed and not all suffering can be relieved. This article addresses the ethical, professional and legal issues to be considered by the nurses in the United States who are facing patients’ requests for assisted suicide. Both personal and professional risks, and the consequences of an action must be evaluated. Ultimately, a decision is based on some ranking of: patient values; personal values and (...) beliefs; professional codes, standards and other guidelines; and societal laws and regulations. (shrink)
John Webster provides a major scholarly analysis, the first in any language, of the final sections of the Church Dogmatics. He focuses on the theme of human agency in Barth's late ethics and doctrine of baptism, placing the discussion in the context of an interpretation of the Dogmatics as an intrinsically ethical dogmatics. The first two chapters survey the themes of agency, covenant and human reality in the Dogmatics as a whole; later chapters give a thorough analysis of Church Dogmatics (...) IV/4 and the posthumously published text The Christian Life. A final chapter examines the significance of Barth's work for contemporary accounts of moral selfhood. The book is important not only for a detailed analysis of a neglected part of Barth's oeuvre, but also because it casts into question much of what has hitherto been written about Barth's ethical dogmatics. (shrink)
