The development of atomic bombs under the auspices of the U.S. Army's Manhattan Project during World War II is considered to be the outstanding news story of the twentieth century. In this book, a physicist and expert on the history of the Project presents a comprehensive overview of this momentous achievement. The first three chapters cover the history of nuclear physics from the discovery of radioactivity to the discovery of fission, and would be ideal for instructors of a sophomore-level "Modern (...) Physics" course. Student-level exercises at the ends of the chapters are accompanied by answers. Chapter 7 covers the physics of first-generation fission weapons at a similar level, again accompanied by exercises and answers. For the interested layman and for non-science students and instructors, the book includes extensive qualitative material on the history, organization, implementation, and results of the Manhattan Project and the Hiroshima and Nagasaki bombing missions. The reader also learns about the legacy of the Project as reflected in the current world stockpiles of nuclear weapons. This second edition contains important revisions and additions, including a new chapter on the German atomic bomb program and new sections on British and Canadian contributions to the Manhattan project and on feed materials. Several other sections have been expanded; reader feedback has been helpful in introducing minor corrections and improved explanations; and, last but not least, the second edition includes a detailed index. (shrink)

The three cycles of cell division immediately following theformation of the cellular blastoderm during Drosophila embryogenesis display an invariant pattern(1,2). Bursts of transcription of a gene called string are required and sufficient to trigger mitosis at this time during development(3). The activator of mitosis encoded by the string gene is a positive regulator of cdc2 kinase and a Drosophila homologue of the Saccharomyces pombe cdc25 tyrosine phosphatase(4,5). Evidence presented in a recent paper(6) demonstrates that transcription of string, and hence the (...) timing and pattern of mitosis in the postblastoderm embryo, is under complex developmental control. Several lines of evidence support this interpretation, including the analysis of string transcription in pattern formation mutants, cell cycle arrest mutants, and the preliminary characterization of an extensive cis‐acting regulatory region. (shrink)

The development of nuclear weapons during the Manhattan Project is one of the most significant scientific events of the twentieth century. This revised and updated 3rd edition explores the challenges that faced the scientists and engineers of the Manhattan Project. It gives a clear introduction to fission weapons at the level of an upper-year undergraduate physics student by examining the details of nuclear reactions, their energy release, analytic and numerical models of the fission process, how critical masses can be estimated, (...) how fissile materials are produced, and what factors complicate bomb design. An extensive list of references and a number of exercises for self-study are included. Links are given to several freely-available spreadsheets which users can use to run many of the calculations for themselves. (shrink)

Charles Demuth is widely recognized as one of the most significant American modernists. His precisionist cityscapes, exquisite flowers, and free-wheeling watercolors of vaudeville performers, homosexual bathhouses, and cabaret scenes hang in many of the country's most prestigious collections, including the Metropolitan Museum of Art, the Philadelphia Museum of Art, the Columbus Museum of Art, the Amon Carter Museum in Fort Worth, the Art Institute of Chicago, and in Demuth's Lancaster, Pennsylvania, family residence, now home of the Demuth Foundation. At a (...) time when many American artists remained tied to Europe, Demuth "Americanized" European modernism. This collection of 155 of his letters offers valuable views of the arts and letters colonies in Provincetown, New York, and Paris. Besides offering information on Demuth's own works, the letters also shed light on the output of his contemporaries, as well as references to their trips, liaisons, and idiosyncrasies. Demuth numbered among his correspondents some of the most famous artists and writers of his time, inluding Georgia O'Keeffe, Eugene O'Neill, John Reed, Gertrude Stein, Alfred Stieglitz, Carl Van Vechten, and William Carlos Williams. In his travels in the United States and abroad, he encountered many other talented contemporaries: Peggy Bacon, Muriel Draper, Marcel Duchamp, the Stettheimer sisters, artists and writers, patrons, and gallery owners. Whether he is offering to pick up a copy of Joyce'sUlyssesfor Eugene O'Neill or trying to convince Georgia O'Keeffe to decorate his music room, Demuth is always in the thick of art and literary life. Flamboyant in attire but descreet in his homosexuality, Demuth also reveals in his letters the life of a talented homosexual in the teens and twenties. With his best friends Robert Locher and Marsden Hartley, he circulated through the art colonies of Greenwich Village, Provincetown, and Paris, meeting everyone. The book also contains reprints of some short appraisals of Demuth and his work that were published during his lifetime, long out of print, including pieces by A. E. Gallatin, Angela E. Hagen, Marsden Hartley, Helen Henderson, Henry McBride, Carl Van Vechten, Rita Wells, and Willard Huntington Wright. Author note:Bruce Kellneris Emeritus Professor of English, Millersville University, and a member of the Demuth Foundation Board of Directors. He is the author or editor of 10 other books. (shrink)

Thomas Reed argues that the Christian, if apprised of Plantinga's central claims in Warranted Christian Belief, should be agnostic regarding Christianity's central tenets. Reed models his argument on Plantinga's own argument against naturalism, according to which naturalists have a built-in defeater for their epistemology. Reed bases his argument on the contention that if Christian theism cannot be shown or demonstrated, rational Christians should refrain from believing. Not only does Reed's contention not follow, but he confuses logically (...) possible defeaters with actual defeaters and ignores Plantinga's claims regarding the Aquinas/Calvin model and the proper basicality of belief in God. (shrink)

This paper looks at a dispute decision theory about how best to characterize expected utility maximization and express the logic of rational choice. Where A1, … , An are actions open to some particular agent, and S1, … , Sn are mutually exclusive states of the world such that the agent knows at least one of which obtains, does the logic of rational choice require an agent to consider the conditional probability of choice Ai given that some state Si obtains, (...) Prob(Ai/Si). Or, is the logic of choice better represented by considering the probability of the counterfactual if Ai then Si, Prob(Ai ⟥-> Si). Causal decision theory, developed by Allan Gibbard, William Harper, and David Lewis defend the counterfactual analysis; whereas, Richard Jeffrey and others defend the conditional probability analysis, evidential decision theory. I argue that the problems posed by cases of decision instability favor evidential decision theory. (shrink)

This is an unpublished talk written for a meeting of French philosophers. The paper describes the evolution versus creationism/intelligent design controversy in the U.S. A number of philosophers and scientists try to resolve this issue by sharply distinguishing the realm of science versus any talk of the supernatural. These pro-evolutionists often appeal to science's essential commitment to "methodological naturalism," the view that scientific methodology is essentially committed to naturalism and cannot meaningfully entertain hypotheses concerning the supernatural. I criticize methodological naturalism, (...) suggesting that such an appeal is misguided and counterproductive. I suggest an alternative view of the supernatural consistent with scientific knowledge. (shrink)

The Hasting Center's, "Guidelines on the Termination of Life-Sustaining Treatment and the Care of the Dying" (1987), outlines a position on assisted suicide that I argue is contradictory. On one hand the guidelines offers a position on human dignity and autonomy that accords competent patients the right to intentionally kill themselves by requesting doctors to terminate life-support. Yet, on the other hand, the guidelines argue that terminating life-support upon request is not ever the moral equivalent of doctored-assisted suicide, and granting (...) the right to the former does not grant a right to the latter. In this paper I argue that in some circumstances a right to obligate your doctor to pull the plug on life-support is morally equivalent to the right to obligate your doctor to assist you in dying by more direct means, e.g. administering a lethal dose of medication. If the fundamental values of autonomy, self-determination, and human dignity justify this right in the one case, they eo ipso justify this right in the other. Both circumstances are subject to the same potential abuse, so citing such potential abuse does not defeat granting an autonomy right in either case. (shrink)

This paper rejects a view of science called "methodological naturalism." -/- According to many defenders of mainstream science and Darwinian evolution, anti-evolution critics--creationists and intelligent design proponents--are conceptually and epistemologically confusing science and religion, a supernatural view of world. These defenders of evolution contend that doing science requires adhering to a methodology that is strictly and essentially naturalistic: science is essentially committed to "methodological naturalism" and assumes that all the phenomena it investigates are entirely natural and consistent with the laws (...) of physics. Thus encountering any unexplained phenomenon, science assumes a priori that there is some natural cause and will only test a natural hypothesis. Since by definition supernatural causes are assumed to be not subject to the constraints of physical or natural law as understood by science, supernatural hypotheses and explanations must be banned from proper science. Science simply can't say that God did, or did not do it. -/- I argue that the success of science is directly relevant to rational belief in supernatural causes, and that in fact science can and does say in particular cases that "God didn't do it." I suggest that pro-evolution proponents can better defend science and the theory of evolution by rejecting methodological naturalism. -/- . (shrink)

Continuing his quest to bring American philosophy back to its roots, Bruce Wilshire connects the work of such thinkers as Thoreau, Emerson, Dewey, and James with Native American beliefs and practices. His search is not for exact parallels, but rather for fundamental affinities between the equally "organismic" thought systems of indigenous peoples and classic American philosophers. Wilshire gives particular emphasis to the affinities between Black Elk’s view of the hoop of the world and Emerson’s notion of horizon, and also (...) between a shaman’s healing practices and James’s ideas of pure experience, willingness to believe, and a pluralistic universe. As these connections come into focus, the book shows how European phenomenology was inspired and influenced by the classic American philosophers, whose own work reveals the inspiration and influence of indigenous thought. Wilshire’s book also reveals how artificial are the walls that separate the sciences and the humanities in academia, and that separate Continental from Anglo-American thought within the single discipline of philosophy. (shrink)

Written for the general reader and the student of moral philosophy, this book provides a clear and unified treatment of Kant's theory of morals. Bruce Aune takes into account all of Kant's principal writings on morality and presents them in a contemporary idiom. Originally published in 1980. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important (...) books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905. (shrink)

In two recent papers, Christian List and Philip Pettit have argued that there is a problem in the aggregation of reasoned judgements that is akin to the aggregation of the preference problem in social choice theory. 1 Indeed, List and Pettit prove a new general impossibility theorem for the aggregation of judgements, and provide a propositional interpretation of the social choice problem that suggests it is a special case of their impossibility result. 2 Specifically, they show that no judgement aggregation (...) function for a group is possible if the group seeks to satisfy certain `minimal conditions' designed to ensure that the function is both responsive to the individually rational views of its members and collectively rational in the set of judgements it holds. In this article, I resist the List and Pettit claim that there is the same propensity for collective irrationality or incoherence in the aggregation of reasoned judgements as there is in the aggregation of preference. I argue that reason, because it has a logical structure that is lacking in mere preference, has the effect of giving priority to some aggregations over others, a priority that is not permitted by one of the conditions imposed by List and Pettit. This avoids the incoherence that would otherwise exist if these different aggregations, not consistent with one another, were to compete at the same level of priority. The priority of some aggregations is particularly apparent, I shall argue, if one views the aggregation of judgements through the lens of common law decision-making. Key Words: social choice • judgement • Condorcet jury theorem • collective rationality • public reason • doctrinal paradox • discursive dilemma. (shrink)

Philosophers writing on the subject of human action have found it tempting to introduce their subject by raising Wittgenstein's question, 'What is left over if you subtract the fact that my arm goes up from the fact that I raise my arm?' The presumption is that something of particular interest is involved in an action of raising an arm that is not present in a mere bodily movement, and the philosopher's task is to specify just what this is. Unfortunately, such (...) an approach does not take us very far, since a person could properly be said to raise his (or her) arm while asleep or hypnotized even though he (or she) would not be performing an action in the sense of 'action' with which philosophers are particularly concerned. To avoid this kind of difficulty I shall approach the subject of human action is a more academic way: I shall expound some important rival theories of human action, and introduce the relevant issues by commenting critically on those theories. One of the issues I eventually introduce is a metaphysical one. A theory of action makes sense, I contend, only on the assumption that there are such 'things' as actions (or events). After considering some key arguments bearing on the issue I conclude that, as matters currently stand in philosophy, a metaphysically noncommittal attitude toward actions and events seems justified. (shrink)

Legal decision-making emphasizes, in a very self-conscious way, the justificatory significance of reasons. This paper argues that the obligation to provide reasons for choices, which must be articulated and structured around a set of generally shared and publicly comprehensible categories of thought, can serve to make the space of possible choices ‘concept sensitive’ in a very useful way. In particular, concept sensitivity has the effect of restricting certain movements within the choice space so that some of the systematic difficulties in (...) achieving an equilibrium in social choice which arise out of an excess of rational doing are avoided. The resulting equilibrium is path dependent. But because it is dependent on a choice path which ‘makes sense’ (or is ordered by thought precisely because it is concept sensitive), it is not the sort of arbitary path-dependent social choice which originally concerned Kenneth Arrow. This paper illustrates these points with examples from criminal law procedure, contract law and constitutional law. (shrink)

Mediation is an alternative dispute resolution process that is becoming more and more popular particularly in English-speaking countries. In contrast to traditional litigation it has not benefited from technological advances and little research has been carried out to make this increasingly widespread practice more efficient. The study of argumentation in dispute mediation hitherto has largely been concerned with theoretical insights. The development of argumentation theories linked to computational applications opens promising new horizons since computational tools could support mediators, making sessions (...) quicker and more efficient. For this, we need tools for close analysis of mediation discourse in order to explore the argumentative activity in depth, and ultimately get an accurate image of how dialogues unfold in this particular context. This paper therefore aims at laying the foundations of a theory of close analysis for discourse in dispute mediation. Theories provided by the literature serve as a basis for argumentative analyses of transcripts of mediation sessions in order to deliver a clear image of the argumentative structure. Analyses of the argumentative strategies in mediation discourse will allow for the development of a dialogue protocol that can be used to develop operational models which can be embodied in software to help make the mediation process easier and more effective. (shrink)

Past and present societies world-wide have employed well over 100 distinct notational systems for representing natural numbers, some of which continue to play a crucial role in intellectual and cultural development today. The diversity of these notations has prompted the need for classificatory schemes, or typologies, to provide a systematic starting point for their discussion and appraisal. The present paper provides a general framework for assessing the efficacy of these typologies relative to certain desiderata, and it uses this framework to (...) discuss the two influential typologies of Zhang & Norman and Chrisomalis. Following this, a new typology is presented that takes as its starting point the principles by which numerical notations represent multipliers (the principles of cumulation and cipherization), and bases (those of integration, parsing, and positionality). Many different examples show that this new typology provides a more refined classification of numerical notations than the ones put forward previously. In addition, the framework provided here can be used to assess typologies not only of numerical notations, but also of many other domains. (shrink)

A comprehensive introductory study of the key concepts and problems in traditional and contemporary metaphysics. Aune presents and defends a point of view that is naturalistic, nominalistic and pragmatic-an approach that has the overall advantage of providing a coherent, structured view of the topics he discusses.

The present study sought to determine whether Barrett's counterintuitiveness coding and quantifying scheme could be applied to cultural materials with sufficient intercoder reliability, provide evidence concerning just how counterintuitive is too counterintuitive for a concept to be a recurrent cultural idea, and test whether counterintuitive intentional agent concepts are more common in folktales than other classes of counterintuitive concepts. Seventy-three folktales from around the world were sampled from larger collections. Using Barrett's CI-Scheme, two independent coders identified 116 counterintuitive objects and (...) scored them for degree of counterintuitiveness with very high inter-rater concordance. Of folktales, 79% had one or two counterintuitive objects. Of the counterintuitive objects 93% had a counterintuitiveness score of only one. Of counterintuitive objects, 98% were agents. Results suggest the CI-Scheme may have utility for analyzing cultural materials, that the cognitive optimum for cultural transmission falls around one counterintuitive feature, and that counterintuitive agents are more common than other types of counterintuitive objects in folktales. (shrink)

The importance of this collection of writings of William James lies in the fact that it has been arranged to provide a systematic introduction to his major philosophical discoveries, and precisely to those doctrines and theories that are of most burning current interest. William James: The Essential Writings is a series of philosophical arguments on some of the most “obscure and head-cracking problems” in contemporary philosophy; the relation of thought to its object; the interrelationships between meaning and truth; the levels (...) and structures of experience; the degrees of reality; the nature of the embodied self; the relation of ethics, aesthetics, and religious experience to man’s strenuously and “heroically” active nature; and, above all, the structurization of the experienced life-world as the validating ground and origin of all theory; Bruce Wilshire has provided an introduction to William James’s thought on these and other related points which is at once both substantial and subtle. (shrink)

Many philosophers believe that the traditional problem of our knowledge of the external world was dissolved by Wittgestein and others. They argue that it was not really a problem - just a linguistic `confusion' that did not actually require a solution. Bruce Aune argues that they are wrong. He casts doubt on the generally accepted reasons for putting the problem aside and proposes an entirely new approach. By considering the history of the problem from Descartes to Kant, Aune shows (...) that analogous arguments create difficulties for the contemporary philosophical consensus. He makes it clear that the problem remains acute, particualarly for our understanding of scientific evidence. The solution he proposes draws upon contemporary philosophy of science and probability theory. (shrink)

The importance of this collection of writings of William James lies in the fact that it has been arranged to provide a systematic introduction to his major philosophical discoveries, and precisely to those doctrines and theories that are of most burning current interest. William James: The Essential Writings is a series of philosophical arguments on some of the most "obscure and head-cracking problems" in contemporary philosophy; the relation of thought to its object; the interrelationships between meaning and truth; the levels (...) and structures of experience; the degrees of reality; the nature of the embodied self; the relation of ethics, aesthetics, and religious experience to man's strenuously and "heroically" active nature; and, above all, the structurization of the experienced life-world as the validating ground and origin of all theory; Bruce Wilshire has provided an introduction to William James's thought on these and other related points which is at once both substantial and subtle. (shrink)

In this paper I argue that, according to a particular physicalist conception of information, information is both alethically neutral or non-alethic, and is intrinsically semantic. The conception of information presented is physicalist and reductionist, and is contrary to most current pluralist and non-reductionist philosophical opinion about the nature of information. The ontology assumed for this conception of information is based upon physicalist non-eliminative ontic structural realism. However, the argument of primary interest is that information so construed is intrinsically semantic on (...) a reductionist and non-alethic basis where semantic content is constituted by indication along causal pathways. Similar arguments have been presented by philosophers with respect to representation. I suggest the conception of information that I present is correct by the lights of the best applied mathematical and scientific theories of information. If so, there is no need for any separate theory of semantic information. Thus I present a theory of intrinsically semantic information which also constitutes an informational theory of truth where truth reduces to information. In the last section I discuss weakly and strongly semantic information, and reject them in favour of alethically neutral intrinsically semantic information. (shrink)

Infants, children, adolescents, and pregnant and lactating women have been described as groups with special needs. Regardless of diet chosen, these groups are at higher risk for nutritional deficiencies than adult males. Vegan diets can be safely used by these groups if foods, and in some instances supplements, are selected which provide a healthful and nutritionally adequate diet. Guidelines have been developed for those choosing to follow vegan diets. In many instances vegan diets offer health benefits. Studies of vegans are (...) limited by factors such as heterogeneity of diets, the size and extent of this type of study, and difficulty in subject identification. There is a scarcity of studies of newer vegetarians who are often more mainstream than the vegetarians of the 1960s and 1970s. In some instances this has led to assumptions about today's vegans which are based on out-dated information. Thorough scientific studies of today's vegetarians, especially of those in groups with special needs, are needed. (shrink)

PC Wars: Politics and Theory in the Academy addresses the very issue of political correctness and the current skirmishes in the culture wars. It includes statements from many of our leading contemporary public intellectuals, including Joan Wallach Scott, Michael Be;rube;, Bruce Robbins, Henry Giroux, and Gerald Graff. The collection marks a watershed in the debate about "pc" in that it presents serious considerations and analyses of the factors, causes, and consequences of the culture wars. Carefully examining the construction of (...) "pc," PC Wars analyses political correctness by focusing on the mass media, class politics, and the ideology of managerial democracy. It places the disputes around "pc" in the context of contemporary developments in critical and cultural theory and the current backlash against theory, manifested in the recent attacks on Marxism, feminism and deconstruction. The book also scrutinizes the undercurrents of anti-intellectualism and anti-professionalism which have tended to create a fertile ground for the "pc" hysteria. Offering much more than slogans and slinging arrows, PC Wars provides a spirited and critical look at the reaction, ideology, and political forces that have coalesced around the term. Contributors: Michael Be;rube;, Reed Way Dasenbrock, Frank Farmer, Henry Giroux, Gerald Graff, Darlene Hantzis and Devoney Looser, John S. Howard and James M. Lang, Tom Lewis, James Neilson, Christopher Newfield, Richard Ohmann, Burce Robbins, Barry Sarchett, Joan W. Scott, Michael Sprinker, Jeffrey Williams. (shrink)

Summary During the past decade, the cultural restorationist wing of the New Right has sought to impose its own anachronistic and sentimental conception of ?British culture? on schools and colleges. This conception, which is little more than a glib celebration of quintessential ?Englishness?, characterises the national culture in largely monolithic and ethnically undifferen?tiated terms. Concerned about the possible pernicious effects of educational policies inspired by such thinking, we present the findings of a recently completed ethnographic study of 8?11 year?olds? conceptions (...) of British national culture. Our paper considers the extent to which children's understanding of this complex form of collective identity may vary with age, and ethnicity. We conclude by exploring the implications of the findings for anti?racist and multicultural education. (shrink)

Ranging from Joseph Bellamy to Hilary Putnam, and from early New England Divinity Schools to contemporary university philosophy departments, historian Bruce Kuklick recounts the story of the growth of philosophical thinking in the United States. Readers will explore the thought of early American philosphers such as Jonathan Edwards and John Witherspoon and will see how the political ideas of Benjamin Franklin, Thomas Paine and Thomas Jefferson influenced philosophy in colonial America. Kuklick discusses The Transcendental Club (members Henry David Thoreau, (...) Ralph Waldo Emerson) and describes the rise of pragmatism centered on Metaphysical Club of Cambridge (and members William James, Oliver Wendell Holmes, and Charles Peirce). He examines the profound impact Darwinism had on American philosophy and looks at Idealists such as the Kantian Josiah Royce and the Hegelian John Dewey. The book shows how, in the twentieth century, the Nazi conquest of Europe unleashed a flood of European intellectuals onto these shores, including such major thinkers as Theodore Adorno, Erich Fromm, Rudolph Carnap, and Alfred Tarski. Finally, Kuklick examines the contributions of such contemporary philosophers as Sidney Hook and Willard Quine and such books as John Rawl's A Theory of Justice and Herbert Marcuse's One Dimensional Man. Kuklick pulls no punches in portraying the state of American philosophy today and its contested role in the intellectual life of the nation and the world. The range of philosophical thought in our nation's history has been great, from Edwards's Religious Affections to Kuhn's The Structure of Scientific Revolutions, and Bruce Kuklick has captured it all in a book that blends intricate details with sweeping vision. (shrink)

I argue that although Ockham’s Razor (OR) has its origins in a-priorist ontological mandates according to the purposes of natural theology and natural philosophy as influenced by it, the principle has taken on significant empirical and contingent materialist connotations and conceptual content since the scientific revolution. I briefly discuss the pluralism of the concept of OR historically and in contemporary science and philosophy. I then attempt to align scientific metaphysics with contemporary conceptions of OR, and to demonstrate that ontic parsimony (...) is an indispensable element of scientific (contingent and anti-a-priorist) metaphysics. I then further deploy that scientific metaphysics to propose a contingently grounded semi-formal approach, with set theoretic features, and then with information theoretic features, to provide a way of assessing when a scientific theory and its ontology are aligned with OR appropriately in the context of the proposed scientific metaphysics. (shrink)

In the age of the `return to the empirical' in which the theoretical disputes of an earlier era seem to have fallen silent, we seek to excavate the intellectual conditions for reviving theoretical debate, for it is upon this recovery that deeper understanding of the nature and purpose of empirical social science depends. We argue against the all too frequent turn to ontology, whereby critical realists have sought an epistemological guarantor of sociological validity. We seek, to the contrary, to crystallize (...) a culturally-based, hermeneutic account of a rational social science. Derived from disputes within the sociology of culture, on the one hand, and the long-standing concerns of interpretive philosophy, on the other, we offer a cultural-sociological approach to epistemology. We view the production of truth in social science as a reading of a meaningful social world, and as a performance of truth-claims that is constrained by evidence, but whose success depends on other contextual factors. We conclude that the rationality of social science can be achieved only by forgoing ontology. Theories are abstractions of investigators' meanings that allow the interpretation of social meanings in turn, whether those are actions, relations, or structures. Successful explanations are those that intertwine these meaning structures of investigators and actors in an effective way. (shrink)