MATTER AND LIGHT The New Physics By LOUIS DE BROGLIE. Originally published in 1937. TRANSLATORS NOTE: THE Author has in certain places modified the original French text for the English translation, for the sake of greater cohesion, and has also revised some passages, in order to bring them into accord with the results of later research. Occasional Translators Notes are shown in square brackets. The chapter on The Undulatory Aspects of the Electron has the special historical interest of having (...) been delivered as a Lecture on the occasion of the Authors receipt of the Nobel Award, while that on Wave Mechanics and its Interpretations was given as an Address at the Glasgow meeting of the British Association in 1928. I am indebted to Dr. J. E. Turner, of the University of Liver pool, for assistance with the translation and the proofs, and to Dr. C. Strachan, of the same University, I am indebted for valuable assistance in dealing with the equations and the more technical passages, as well as for reading the proofs. W. H. J. PREFACE: THE amiable insistence of my friend Andr George has induced me to collect in the present Volume a number of Studies on con temporary Physics written from both the general and the more metaphysical point of view. Each of these Studies forms an inde pendent whole, and can be read by itself. A slight degree of repeti tion which the reader is asked to overlook has been the inevi table result for on more than one occasion I have been compelled to duplicate a summary of the great fundamental stages of con temporary Physics, such as the classification of simple substances, the investigation of the photo-electric effect and the origin of the Theory of Light Quanta and of Wave Mechanics the subjects are somewhat technical, and I cannot well assume that they are common knowledge. But though the same subject is outlined in several of these Studies, I have tried to take up a different point of view in each, and have endeavoured to throw light on different aspects of the essential problems of Quantum Physics in order to facilitate a grasp of their importance. On comparing the different chapters the reader will observe that, while overlapping, they also complement one another and he will feel the fascination and greatness inherent in the vast structure of modern Physics. And while admiring the vast number and the extreme delicacy of experimental facts which laboratory physicists have succeeded in revealing, and the strange and brilliant concepts devised by theorists to explain them, he will appreciate to what a degree the methods and ideas of physicists have grown in subtlety during recent years, and how great has been the progress from the somewhat ingenuous Realism and the over-simplified Mechanics of earlier thinkers. The more deeply we descend into the minutest structures of Matter, the more clearly we see that the concepts evolved by the mind in the course of everyday experience especially those of Time and Space must fail us in an endeavour to describe the new worlds which we are entering. One feels tempted to say that the outlines of our concepts must undergo a progressive blurring, in order that they may retain some semblance of relevance to the realities of the subatomic scales. Time and Space, in other words, are too loose a dress for the elementary entities individuality becomes attenuated in the mysterious pro cesses of interaction, and even Determinism, the darling of an older generation of physicists, is forced to yield... (shrink)

Now in a third edition, Introduction to Philosophy: Classical and Contemporary Readings is a highly acclaimed, topically organized collection that covers five major areas of philosophy--theory of knowledge, philosophy of religion, philosophy of mind, freedom and determinism, and moral philosophy. Editor Louis P. Pojman enhances the text's topical organization by arranging the selections into a pro/con format to help students better understand opposing arguments. He also includes accessible introductions to each chapter, subsection, and individual reading, a unique feature for (...) an anthology of this depth. While the book focuses on a compelling sampling of classical material--including selections from Plato, Aristotle, Descartes, Locke, Berkeley, Hume, and Kant--it also incorporates some of philosophy's best twentieth-century and contemporary work, featuring articles by Bertrand Russell, Richard Taylor, John Searle, Thomas Nagel, and others. This third edition contains an expanded glossary, more extensive section introductions, and twelve new selections: Karl Popper: "Epistemology without a Knowing Subject" Richard Rorty: "Dismantling Truth: Solidarity Versus Objectivity" Daniel Dennett: "Postmodernism and Truth" Bruce Russell: "The Problem of Evil: Too Much Suffering" David Chalmers: "Against Materialism: Can Consciousness Be Reductively Explained?" Baron Paul Henri d'Holbach: "A Defense of Determinism" Michael Levin: "A Compatibilist Defense of Moral Responsibility" Plato: Socratic Morality: "Crito" Herodotus: "Custom Is King" J. L. Mackie: "The Subjectivity of Values" Louis P. Pojman: "A Critique of Mackie's Theory of Moral Subjectivism" Thomas Nagel: "Moral Luck". (shrink)

Chenu, M.-D. Foi, certitude et recherche.--Gilson, É. Réponse à Louis-Marie Régis, On some difficulties of interpretation.--Dubarle, D. Logique et épistémologie du signe chez Aristote et chez les Stoïciens.--Geiger, L.-B. Ce qui est, se dit en plusiers sens.--Owens, J. "Diversificata in diversis."--Cauchy, V. Être et connaître, l'irréductibilité de l'aristotélisme au platonisme.--Joós, E. Maurice Merleau-Ponty, de l'intentio intellectus, à l'intentio rei.--Murin, C. Pour une démystification de la "mort-de-Dieu" nietzschéenne.--Joós, E. Post-scriptum, la nouvelle scolastique de Louis-Marie Régis.--Landry, A.-M. Louis-Marie Régis, (...) O.P., quelques dates et faits marquants de sa vie.--Lettre d'Henri-Irénée Marrou à Louis-Marie Régis. (shrink)

The life of Saint Teresa of Jesus, the most famous mystic of sixteenth-century Spain, was characterized by recurrent visions and states of ecstasy. In this paper, we examine social components related to Teresa’s personal crises and the historical conditions of her times, factors that must be taken into account to understand these unusual forms of experience and behavior. Many of these factors (e.g., increasing individualism and reflexivity) are precursors of the condition of modern times. Indeed, certain parallels can be observed (...) between Saint Teresa and certain present-day psychopathological disorders. The analogy should not, however, be carried too far. Religion played a particularly crucial role in Teresa’s cultural context; as a result, it would be misleading to view her mystical experiences as resulting from a mental disorder. (shrink)

Long-term potentiation (LTP) is operationally defined as a long-lasting increase in synaptic efficacy following high-frequency stimulation of afferent fibers. Since the first full description of the phenomenon in 1973, exploration of the mechanisms underlying LTP induction has been one of the most active areas of research in neuroscience. Of principal interest to those who study LTP, particularly in the mammalian hippocampus, is its presumed role in the establishment of stable memories, a role consistent with descriptions of memory formation. Other characteristics (...) of LTP, including its rapid induction, persistence, and correlation with natural brain rhythms, provide circumstantial support for this connection to memory storage. Nonetheless, there is little empirical evidence that directly links LTP to the storage of memories. In this target article we review a range of cellular and behavioral characteristics of LTP and evaluate whether they are consistent with the purported role of hippocampal LTP in memory formation. We suggest that much of the present focus on LTP reflects a preconception that LTP is a learning mechanism, although the empirical evidence often suggests that LTP is unsuitable for such a role. As an alternative to serving as a memory storage device, we propose that LTP may serve as a neural equivalent to an arousal or attention device in the brain. Accordingly, LTP may increase in a nonspecific way the effective salience of discrete external stimuli and may thereby facilitate the induction of memories at distant synapses. Other hypotheses regarding the functional utility of this intensely studied mechanism are conceivable; the intent of this target article is not to promote a single hypothesis but rather to stimulate discussion about the neural mechanisms underlying memory storage and to appraise whether LTP can be considered a viable candidate for such a mechanism. (shrink)

This volume critically explore and extend Hayek's Nobel Prize-winning work on knowledge and social interconnectedness from the disciplines of law, economics, philosophy, anthropology, political science, and history. Hayek's insights about knowledge become even more important once it is recognized that nothing in the social world occurs in isolation. There is no such thing as a distinct economic, political, or social sphere--they are inextricably intertwined. Given the range of both Hayek's work and the contributing authors' perspectives, the range of topics covered (...) in this volume is extraordinarily wide, running the gamut from immigration, to white supremacy, to ancient agricultural practices, to the nature of what it means to be free. (shrink)

The neurophysiological phenomenon of LTP (long term potentiation) is considered by many to represent an adequate mechanism for acquiring or storing memories in the mammalian brain. In our target article, we reviewed the various arguments put forth in support of the LTP/memory hypothesis. We concluded that these arguments were inconsistent with the purported data base and proposed an alternative interpretation that we suggested was at least as compatible with the available data as the more widely held view. In doing so, (...) we attempted to illustrate that the inadequacy of present experimental designs did not permit us to distinguish between equally viable hypotheses. In the four years since we wrote the first draft of our target article, hundreds of additional studies on LTP have been published and their results have been incorporated into current theories about memory. A diverse group of commentators responded to our target article with their own theories of how memories might be stored in the brain, some of which rely on LTP. Some commentators doubted whether memories can be stored through modifications of synaptic strength. Some assert that it will never be possible to understand the neural mechanisms of memory; still others remain hopeful that we will accomplish some semblance of a resolution, provided we appreciate LTP's role in a subset of seemingly amorphous memory systems. In summary, although it is commonly written that “LTP is a memory storage device,” the divergence of views among the commentators suggests, at least as strongly as our target article, that such conviction is unwarranted and fails to acknowledge both the lack of consensus regarding the role of LTP in memory and the complexity of the phenomenon of memory itself. (shrink)

Long-term potentiation (LTP) is a long-lasting increase in synaptic efficacy that many consider the best candidate currently available for a neural mechanism of memory formation and/or storage in the mammalian brain. In our target article, LTP: What's learning got to do with it?, we concluded that there was insufficient data to warrant such a conclusion. In their commentaries, Jeffery and Zhadin raise a number of important issues that we did not raise, both for and against the hypothesis. Although we agree (...) with a number of these issues, we maintain that there remains insufficient evidence that LTP is a memory mechanism. (shrink)

John Stuart Mill's Utilitarianism continues to serve as a rich source of moral and theoretical insight. This collection of articles by top scholars offers fresh interpretations of Mill's ideas about happiness, moral obligation, justice, and rights. Applying contemporary philosophical insights, the articles challenge the conventional readings of Mill, and, in the process, contribute to a deeper understanding of utilitarian theory as well as the complexity of moral life.

In lieu of an abstract, here is a brief excerpt of the content:Defending a Phenomenological–Behavioral Perspective: Culture, Behavior, and ExperienceMarino Pérez-Álvarez (bio), José M. García-Montes (bio), Adolfo J. Cangas (bio), and Louis A. Sass (bio)KeywordsBehavior, contextual phenomenology, culture, experienceWe should like to express our sincere thanks to all the authors for their commentaries on our articles. Given the restrictions of space (a limitation they too had to contend with), we can only respond to a few aspects of their interesting (...) remarks. We shall reply of course on the basis of our own approach—an approach that sets out to integrate culture, behavior, and experience, and that might be termed contextual phenomenology, phenomenological behaviorism, or perhaps most accurately (albeit more awkwardly), the phenomenological–behavioral perspective.In her commentary, Ibáñez-Guerra (2008), referring to the target articles “Phenomenology and behaviorism” (Pérez-Álvarez, Sass, and Cangas 2008) and “The role of superstition in psychopathology” (García-Montes et al. 2008), wonders whether our maintaining of the spirit of Skinner, as well as our recourse to phenomenology, might not themselves represent forms of superstitious behavior. She points out that it is not always a good idea to put new wine in old barrels. For her, the new wine and new barrels would be represented by social constructivism, of which she is reminded by some aspects of our work. But in making her own case, Ibáñez-Guerra (2008) reveals certain common prejudices concerning behaviorism, prejudices that have apparently persisted even after reading our article. Thus, for example, she does not see operant behavior as incorporating intentionality (what, in the target article, is presented in terms of final causality), because she assumes that intentionality would necessarily imply a mentalist and dualist notion involving a supposed internal mental entity that causes behavior. Skinner (1974) himself noted and rejected this very assumption in a passage that clearly distinguishes his own approach from what he calls a “stimulus-response formula”: “Possibly no charge,” he wrote,is more often leveled against behaviorism or a science of behavior than that it cannot deal with purpose or intention. A stimulus-response formula has no answer, but operant behavior is the very field of purpose and [End Page 281] intention. By its nature it is directed toward the future: a person acts in order that something will happen, and the order is temporal.(pp. 55–6)The place Skinner gives to intentionality and purpose is elaborated in our target article.Furthermore, Ibáñez-Guerra (2008) assumes that, on methodological grounds, Skinner rejects all that is not observable, or at least that cannot be operationalized. This, however, is simply incorrect, at least as regards Skinner’s radical behaviorism. As the reader may recall, radical (as opposed to methodological) behaviorism is neither operationalist nor does it reject private or subjective events because of their unobservability. Indeed, Skinner specifically acknowledges that such events are in fact observable—at least for one person: the subject him- or herself. The question for Skinner is to understand how the part of the world that is only observable and experiential for oneself is constructed or formed. In the end, it turns out that radical behaviorism is more radical, in the Aristotelian ontological sense (see Pérez-Alvarez, Sass, and García-Montes 2008), than post-modern constructionism. Indeed, as we remarked, radical behaviorism can still surprise us today. Similarly, phenomenology is starting to be missed in the clinical context (Andreasen 2007). We believe that radical behaviorism and phenomenology, mutually readjusted, are in fact excellent wines for the times we live in—if only we knew how to appreciate them.In their commentary on “Phenomenology and behaviorism: A mutual readjustment,” Fletcher and Hayes (2008) argue that the philosophy and theory of Acceptance and Commitment Therapy (ACT)/Relational Frame Theory (RFT) already contain the salutary aspects of phenomenology that we highlight in our target article. Their insistence on reducing the affinities we find between phenomenology and behaviorism to ACT/RFT consists, in our view, in a scientific–technical argument that is more scientistic than strictly philosophical in nature. Their insistence on the scientific–technical argument itself implies an unclarified philosophical assumption. On what grounds do experimental data constitute the last word? Has... (shrink)

The main point developed in this paper is the demonstration of the attitudes characterizing the major Belgian political parties. This is achieved through a factorial analysis applied to a set of data resulting from the answers given by the major parties leaders to various specific questions regarding bath the prevailing economie as well as institutional issues at the eve of the election of December 17th, 1978. From that point it has been possible to compare those results with the one obtained (...) from the data concerning the 1974 programmes.The results of the statistical analysis show that white in 1974 the strongest positive associations between parties corresponded to tht traditional ethical and socioeconomic cleavages, four years later the linguistic dimension was predominant with a stronger homogeneity characterizing the Dutchspeaking group than what could be observed for the Frenchspeaking one.The factorial analysis allows for a graphical representation of the respective positioning of the parties along the statistically significant factorial axes. Applied to two sets of data, the first one on purely institutional matters, the second one on both institutional and economic policies, the analysis reveals clearly through the various graphs presented the linguistic cleavage as well as the divergences about the extent of regional competences and minorities protection, on the one hand, and, on the other hand, the degrees of regional economic autonomy and of public intervention in the business life. (shrink)

Perkinson provides an original historical interpretation that shows how our intellectual, political, economic, and social institutions emerged out of and are ...

Book reviewed in this article: Clinical Ethics: A Practical Approach to Ethical Decisions in Clinical Medicine. By Albert R. Jonsen, Mark Siegler, and William J. Winslade.