Of all the developments in twentieth century physics, none has given rise to more heated debates than the changes in our understanding of science precipitated by the quantum revolution''. In this revolution, Niels Bohr's dramatically non-classical theory of the atom proved to be the springboard from which the new atomic physics drew it's momentum. Furthermore, Bohr's contribution was crucial not only because his interpretation of quantum mechanics became the most widely accepted view but also because in his role as educator (...) and spokesman for atomic physics Bohr was very much the patron spirit of the entire quantum revolution. The conceptual framework which he proposed to provide a new viewpoint for understanding the quantum theoretical description of atomic systems became for most of this century the dominant outlook of countless productive experimental and theoretical physicists. He called this new framework complementarity''. (shrink)

Although it is, often considered a form of anti-realism, here it is argued that Bohr's complementarity viewpoint must accept entity realism based on its analysis of the causal interaction involved in observation. However, because Bohr accepts the quantum postulate he must reject the view that the goal of theory is to represent the independently existing object apart from observation. Thus he abandons the spectator account of knowledge and with it the correspondence theory of truth. In this respect his view is (...) parallel to the positions held by Hacking, Cartwright, and Ellis. (shrink)

According to the naturalistic normative axiology of Laudan's reticulated model of scientific change, empirical discoveries in the advance of science can provide a rational basis for axiological decisions concerning which epistemic goals scientific inquiry ought to pursue. The Bohr-Einstein debate over acceptance of quantum theory is analyzed as a case of axiological change. The participants' aims are incompatible due to different formulations of the goal of objective description, but neither doubts the realist commitment to the existence of microsystems or the (...) intention of quantum mechanics to provide knowledge of them. Thus the general aim of realism is not at issue. (shrink)

The question of whether an «understanding» of quantum phenomena is possible, as raised by Cushing , is considered in terms of a possible revision of basic ontological assumptions which would make rational the pursuit of such an understanding. It is argued that the quantum theory imposes new constraints on ontology which force us to revise classical presuppositions about attributing properties to physical systems, about locality and individuality, and about interaction and space‐like separability. Through such ontological revision, it is argued, one (...) may still rationally hope to satisfy the typically realist thirst for an understanding of quantum phenomena. (shrink)

SummaryUnder the assumption of the materialistic‐mechanistic ontology implicit in classical physics, quantum theory as interpreted through Niels Bohr's epistemology of complementarity is not formally objective; i. e., it is not informative of the state of physical systems independent of particular phenomenal manifestations of them. However, an analysis of the notion of the “physical system”, in theory, as experienced, and as existing “in‐itself”, reveals that if the older ontology is replaced, quantum mechanics through complementarity becomes formally objective, points the way toward (...) a new ontology based on the notion of the power to structure interaction between systems, and provides new insights into the relations between theory, observation, and the natural world. (shrink)

Since the Niels Bohr centenary of 1985 there has been an astonishing international surge of scholarly analyses of Bohr's philosophy. Now for the first time in Niels Bohr and Contemporary Philosophy Jan Faye and Henry Folse have brought together sixteen of today's leading authors who have helped mould this new round of discussions on Bohr's philosophy. In fifteen entirely new, previously unpublished essays we discover a surprising variety of the different facets of Bohr as the natural philosopher whose (...) `framework of complementarity' shaped the final phase of the quantum revolution and influenced two generations of the century's leading physicists. There is much on which the authors included here agree; but there are also polar disagreements, which assure us that the philosophical questions revolving around Bohr's `new viewpoint' will continue to be a subject of scholarly interest and discussion for years to come. This collection will interest all serious students of history and philosophy of science, and foundations of physics. (shrink)

Niels Bohr and Philosophy of Physics: Twenty-First Century Perspectives examines the work, influences and legacy of the Nobel Prize physicist and philosopher of experiment Niels Bohr. While covering Bohr's groundbreaking contribution to quantum mechanics, this collection reveals the philosophers who influenced his work. Linking him to the pragmatist C.I. Lewis and the Danish philosopher Harald Høffding, it draws strong similarities between Bohr's philosophy and the Kantian way of thinking. Addressing the importance of Bohr's views of classical concepts, it discusses how (...) his interpretation of quantum mechanics now compares with a variety of issues that have arisen only since his lifetime, including decoherence and other non-collapse arguments. Balancing historical themes with contemporary ideas, Niels Bohrs and Philosophy of Physics reveals Bohr's on-going contribution to the philosophy of science and confirms his place in the history of philosophy. (shrink)

Following discussions by Callicott and Zimmerman, I argue that much of deep ecology’s critique of science is based on an outdated image of natural science. The significance of the quantum revolution for environmental issues does not lie in its alleged intrusion of the subjective consciousness into the physicists’ description of nature. Arguing from the viewpoint of Niels Bohr’s framework of complementarity,I conclude that Bohr’s epistemological lesson teaches that the object of description in physical science must be interaction and that it (...) is now mistaken to imagine that physical science aims to represent nature in terms of properties it possesses apart from interaction. (shrink)

Hormis pour quelques spécialistes, la pensée de J. G. Hamann est peu familière encore aujourd’hui. Cette situation regrettable peut s’expliquer de différentes manières. D’une part, les écrits de Hamann ne sont guère connus, peu étudiés et encore moins cités. D’autre part, son œuvre n’est pas proprement philosophique et qui plus est, Hamann, peut-être plus que quiconque, a la réputation d’être un écrivain «ésotérique, confus et obscur, inintelligible, [une] figure excentrique et isolée, consumé par une sorte de christianisme individuel, décrit sous (...) forme de piétisme, croyant aux vérités occultes de la révélation divine, [qui] rejetait le matérialisme et l’athéisme français de son temps [...]». Il est ainsi aisé de percevoir pourquoi Hamann ne fut généralement pas retenu comme un personnage important dans l’histoire de la philosophie au XVIIIe siècle, surtout en France, et aussi pourquoi peu de philosophes se sont intéressés à lui. (shrink)

Background: Moral distress occurs when constraints prevent healthcare providers from acting in accordance with their core moral values to provide good patient care. The experience of moral distress in nurses might be magnified during the current Covid-19 pandemic. Objective: To explore causes of moral distress in nurses caring for Covid-19 patients and identify strategies to enhance their moral resiliency. Research design: A qualitative study using a qualitative content analysis of focus group discussions and in-depth interviews. We purposively sampled 31 nurses (...) caring for Covid-19 patients in the acute care units within large academic medical systems in Maryland and New York City during April to June 2020. Ethical considerations: We obtained approval from the Institutional Review Board at the University of Maryland, Baltimore. Results: We identified themes and sub-themes representative of major causes of moral distress in nurses caring Covid-19 patients. These included (a) lack of knowledge and uncertainty regarding how to treat a new illness; (b) being overwhelmed by the depth and breadth of the Covid-19 illness; (c) fear of exposure to the virus leading to suboptimal care; (d) adopting a team model of nursing care that caused intra-professional tensions and miscommunications; (e) policies to reduce viral transmission (visitation policy and PPE policy) that prevented nurses to assume their caring role; (f) practicing within crisis standards of care; and (g) dealing with medical resource scarcity. Participants discussed their coping mechanisms and suggested future strategies. Discussion/Conclusion: Our study affirms new causes of moral distress related to the Covid-19 pandemic. Institutions need to develop a supportive ethical climate that can restore nurses’ moral resiliency. Such a climate should include non-hierarchical interdisciplinary spaces where all providers can meet together as moral peers to discuss their experiences. (shrink)

A new criterion is introduced for judging the suitability of various fuzzy logics for practical uncertain reasoning in a probabilistic world and the relationship of this criterion to several established criteria, and its consequences for truth functional belief, are investigated.

A commentary on “SUPPORT: Risks, Harms, and Equipoise,” by Robert M. Nelson; “The Controversy over SUPPORT Continues and the Hyperbole Increases,” by Alan R. Fleischman; and “SUPPORT and the Ethics of Study Implementation,” by John D. Lantos and Chris Feudtner, all in the January‐February 2015 issue.

I'd like to say a few things about the quality of life of people like me. We can have – and now I do have – a good quality of life, but we still have to fight for it. We have to take back control of our lives from the KEEPERS, from the professionals.

Philosophie et sciences: voila un theme difficile, central, de notre temps, ou il est necessairement question de son sens. C'est ce sens qu'interrogent, d'une facon a la fois historique et problematique, les essais du present volume. J. Merleau-Ponty questionne les rapports entre sciences et vulgarisation scientifique. J. Ladriere pose le probleme de La normativite de la pensee scientifique. J. Lambert met en evidence le probleme du Livre de la Nature chez Galilee et Kepler. P. Kerszberg confronte les structures internes de (...) la philosophie critique kantienne et de la theorie de la relativite sur la question cosmologique. M. Richir analyse L'illusion transcendantale dans la theorie cantorienne des ensembles. B. d'Espagnat et G. Hottois evoquent le problemes des rapports difficiles, aujourd'hui, entre science et philosophie. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:BOOK REVIEWS 68J The Theology of Henri de Lubac: An Overview. By HANS URS VON BALTHASAR. Translated by Joseph Fessio, S. J., Michael M. Waldstein (Preface), and Susan Clements (Conclusion). San Fran· cisco: Ignatius Press/Communio, 1991. Pp. 127. $9.95 (paper). Except for the preface and conclusion, Hans Urs von Balthasar's The Theology of Henri de Lubac first appeared as the long essay, "Henri de Lubac-L'oeuvre organique d'une vie," in (...) Nouvelle Revue Theologique 97 (1975), 897-913 and 98 (1976), 33-59, and translated by Joseph Fessio, S.J., as "The Achievement of Henri de Luhac" in Thought 51 (1976), 7-49. The preface was added soon after for the German edition, Henri de Lubac: Sein organisches Lebenswerk (Frei· burg im Breisgau: Johannes Verlag, 1976). The conclusion was added for Balthasar's and Jesuit Georges Chantraine's Le Cardinal de Lubac: L'Homme et son oeuvre (Paris: Ed. Lethielleux, 1983). While de Lubac denied " a true, personal philosophical or theo· logical synthesis " in the multiplicity of his oeuvre, he did believe that there could he found " a pattern that constitutes its unity " (de Luhac on p. 10). A more systematic work had been planned with Bruno de Solages, Peres Congar, Chenu, and others. In de Luhac's words, " the lightning bolt of Humani Generis killed the project" (p. 11). We can only wonder at what might have been. At the center of de Lubac's thought is a spiritual perception of "the essence of Christian mysticism" (p. 11). A hook on this subject was planned hut never completed; its fundamental importance was indicated by de Luhac in 1956: "I believe my hook on mysticism has inspired me for a long time in everything I work on; in its light I make my judgments and gain the criteria for ordering my thoughts and ideas" (p. 11). The purpose of Balthasar's little book is to trace these "great spiritual options of the master" (p. 26). Balthasar wrote his preface after he had received from de Luhac the manuscript that would he published as his Memoire sur l'occasion de mes ecrits (1989; ET: At the Service of the Church (1993]). Accord· ing to Balthasar, this "meandering" text has great value in display· ing the organic unity of de Luhac's writings in the contexts which occasioned them-" as well as the legendary condemnations and banish· ments prepared for him by his order and by the Church" (p. 9). De Luhac adopted the " fundamental elan " (p. 13) of Blondel, Marechal, and Rousselot. They enabled de Lubac to see in Thomas Aquinas " the paradox of the spiritual creature that is ordained beyond itself by the innermost reality of its nature to a goal that is unreachable for it and that can only he given as a gift of grace " (p. 13). Balthasar is unambiguous in his belief in the correctness of their interpretation. 684 BOOK REVIEWS Blondel, Marechal, and de Lubac were " martyrs for truth " (p. 13). De Lubac " exposed himself to the attacks of a tutiorist scholastic theology, armed with nothing but the historical and theological truth" (p. 13). Of the three, de Lubac was the most persecuted. The conflict with scholasticism is presented in all its sharpness. One must go back to Thomas himself, over the commentatorial tradition of John of St. Thomas and Cajetan, whose work represents, in the words of Gilson, " a successful ' corruptorium Sanctae Thomae.'... Thomas has been castrated by it" (p. 14). Gilson's "unqualified assent" to de Lubac's Thomistic conclusions means much to Balthasar, because it is "the assent of the greatest authority in the field of the history of phi· losophy" (p. 15). Upon reading Sumaturel (1946), Gilson wrote to de Lubac that the difference between the scholastic and the humanist theologians, like de Lubac, in part lies in the way they understand propositions. The scholastics " understand only univocal propositions and those that seem to be univocal. The former [humanist theologiansJ, by contrast, are more interested in the truth that the proposition attempts to formulate and that partly escapes it" (p. 14). In their incomprehension and fear of analogy, the scholastics are represented as hankering after a security that... (shrink)