We discuss some ways in which topos theory (a branch of category theory) can be applied to interpretative problems in quantum theory and quantum gravity. In Sec.1, we introduce these problems. In Sec.2, we introduce topos theory, especially the idea of a topos of presheaves. In Sec.3, we discuss several possible applications of topos theory to the problems in Sec.1. In Sec.4, we draw some conclusions.

This review summarizes and critiques the empirical ethical decision-making literature from 1996-2003. One hundred and seventy-four articles were published in top business journals during this period. Tables are included that summarize the findings by dependent variable - awareness, judgment, intent, and behavior. We compare this review with past reviews in order to draw conclusions regarding trends in the ethical decision-making literature and to surface directions for future research.

This review summarizes and critiques the empirical ethical decision-making literature from 1996–2003. One hundred and seventy-four articles were published in top business journals during this period. Tables are included that summarize the findings by dependent variable – awareness, judgment, intent, and behavior. We compare this review with past reviews in order to draw conclusions regarding trends in the ethical decision-making literature and to surface directions for future research.

The relationship between unethical peer behavior and observers’ unethical behavior traditionally has been examined from a social learning perspective. We employ two additional theoretical lenses, social identity theory and social comparison theory, each of which offers additional insight into this relationship. Data from 600 undergraduate business students in two universities provide support for all the three perspectives, suggesting that unethical behavior is influenced by social learning, social identity, and social comparison processes. Implications for managers and future research are discussed.

Research in ethical decision making has consistently demonstrated a positive relationship between others’ unethical behavior and observers’ unethical behavior, providing support for the “Monkey See, Monkey Do” perspective (e.g., Robinson and O’Leary-Kelly, Acad Manage J 41:658–672, 1998 ). However, the boundaries of this relationship have received little research attention. Guided by theory and research in interpersonal distancing, we explore these boundaries by proposing and examining “moral differentiation,” the set of individual and situational characteristics that affect the degree to which one (...) is willing to be influenced by others’ unethical behavior. Using data from 655 undergraduate business students in two U.S. universities, we test moderating hypotheses regarding the influence of moral differentiation characteristics on the relationship between others’ unethical behavior and observers’ unethical behavior. Results suggest that strong moral identity, low need for affiliation, and extraversion weaken the relationship between others’ unethical behavior and observers’ unethical behavior. Implications for managers and future research are discussed. (shrink)

This work emerged from funded research examining collaboration among stake-holder organizations present at three U.S. nuclear weapons complex sites. The authors examine issues such as how and why stakeholder groups form collaborative alliances when dealing with the target organization, what leaders of stakeholder organizations actually think about when collaborating to deal with the target organization, and what outcomes result from the collaboration process. Drawing on stakeholder theory and research in interorganizational collaboration, the authors used an inductive, interview-based methodology to build (...) a model of collaboration among nonprofit stakeholder groups. The model contributes to the descriptive stream of stakeholder theory and, in turn, has implications for the instrumental stream. The model also offers implications for future researchers, leaders of stakeholder alliances, and leaders of target organizations. (shrink)

We explain two ways of revising a tense logic like kripke's (1963) modal logic by adding predicate modifiers. first we show that modifiers allow us to render valid some mixing formulas--conditionals reversing the order of a quantifier and an operator--within a complete bivalent system. then we show how modifiers enable a tense logic to give analyses close to the surface form for sentences with temporal qualifications of singular terms, e.g., 'toby was fatter then than william is today'.

The fossil record plays a key role in reconstructing deep evolutionary relationships through its documentation of the early diverging stem groups leading to extant phyla. In the middle Cambrian Burgess Shale, two famously problematic worms, Odontogriphus and Wiwaxia, have recently been reinterpreted as stem‐group molluscs based on their shared expression of a putative radula and putative ctenidia in Odontogriphus.1 More detailed analysis of these fossil structures, however, reveals pronounced anatomical and histological discrepancies with molluscan analogues, such that they are more (...) reliably interpreted as primitive features of the superphylum Lophotrochozoa. In the absence of any obviously derived characters, Odontogriphus could be placed in the stem group of the Lophotrochozoa or on the stem of any of its constituent phyla, whereas the dorsal covering of chaetae in Wiwaxia identifies it as a stem‐group polychaete. Despite their close relationship, these two jawed, segmented worms could conceivably represent the early stages of two separate phyla. BioEssays 28: 1161–1166, 2006. © 2006 Wiley Periodicals, Inc. (shrink)

The twentieth century saw two fundamental revolutions in physics—relativity and quantum. Daily use of these theories can numb the sense of wonder at their immense empirical success. Does their instrumental effectiveness stand on the rock of secure concepts or the sand of unresolved fundamentals? Does measuring a quantum system probe, or even create, reality, or merely change belief? Must relativity and quantum theory just co-exist or might we find a new theory which unifies the two? To bring such questions into (...) sharper focus, we convened a conference on 'Quantum Physics and the Nature of Reality'. Some issues remain as controversial as ever, but some are being nudged by theory’s secret weapon of experiment. (shrink)

This is a Critical Notice for the general philosophical journal, Philosophy, of the anthology 'Many Worlds? Everett, Quantum Theory and Reality', edited by Simon Saunders, Jonathan Barrett, Adrian Kent and David Wallace.

We apply the distinction between parameter independence and outcome independence to the linear and nonlinear models of a recent nonrelativistic theory of continuous state vector reduction. We show that in the nonlinear model there is a set of realizations of the stochastic process that drives the state vector reduction for which parameter independence is violated for parallel spin components in the EPR-Bohm setup. Such a set has an appreciable probability of occurrence (≈ 1/2). On the other hand, the linear model (...) exhibits only extremely small parameter dependence effects. We investigate some specific features of the models and we recall that, as has been pointed out recently, if one wants to be able to speak of definite outcomes (or equivalently of possessed objective elements of reality) at finite times, one has to slightly change the criteria for their attribution to physical systems. The concluding section is devoted to a detailed discussion of the difficulties which one meets when one tries to take, as a starting point for the formulation of a relativistic theory, a nonrelativistic scheme which exhibits parameter dependence. Here we derive a theorem which identifies the precise sense in which the occurrence of parameter dependence forbids a genuinely relativistic generalization. Finally we show how the appreciable parameter dependence of the nonlinear model gives rise to problems with relativity, while the extremely weak parameter dependence of the linear model does not give rise to any difficulty, provided one takes into account the appropriate criteria for the attribution of definite outcomes. (shrink)

This essay, by the editor of Common Knowledge, introduces the sixth and final installment of “Fuzzy Studies,” the journal's “Symposium on the Consequence of Blur.” Suggesting that “Fuzzy Studies” should be understood in the context of a desultory campaign against zeal conducted in the journal for almost twenty years, he explains that the editors' assumption has been that any authentic case for the less adamant modes of thinking, or the less focused ways of seeing, needs to be unenthusiastic and carefully (...) ramified. To establish the distinction between overenthused and unemphatic approaches to blur, he contrasts the ecstatically amorphous “Blur building” with examples of classical Chinese landscape painting. Elizabeth Diller and Richard Scofidio, in their book blur: the making of nothing, chronicle the development of their plans for the Blur building and, in the process, inadvertently show that, to overbear various negative associations of blur and fog, the authors/architects grew self-contradictorily emphatic about the need to produce de-emphasis in architecture and in modern life. Perl shows how this self-contradiction appears also in phenomenology-inflected writings on blur by T. J. Clark, Yve-Alain Bois and Rosalind Kraus, J.-P. Sartre, and Georges Bataille, but not in the work of the phenomenologist François Jullien, whose book The Great Image Has No Form analyzes the role of blur in classical Chinese art theory and practice. Where traditional Western painting, Jullien argues, calls for voyeuristically intense focus, traditional Chinese painting stimulates “dé-tente, relaxation or ‘untensing’.” Intense focus on a blur is still, Perl observes, an intense focus. In describing a painting by the Yuan Dynasty master Ni Zan, Perl concludes that the only way to be un-self-contradictorily positive about fuzziness, whether in logic or aesthetics, is to de-reify and de-differentiate with the aim of achieving blandness. (shrink)

This paper develops some ideas from previous work (coauthored, mostly with C.J.Isham). In that work, the main proposal is to assign as the value of a physical quantity in quantum theory (or classical physics), not a real number, but a certain kind of set (a sieve) of quantities that are functions of the given quantity. The motivation was in part physical---such a valuation illuminates the Kochen-Specker theorem; in part mathematical---the valuations arise naturally in the theory of presheaves; and in part (...) conceptual---the valuations arise from applying to propositions about the values of physical quantities some general axioms governing partial truth for any kind of proposition. In this paper, I give another conceptual motivation for the proposal. I develop (in Sections 2 and 3) the notion of a topos (of which presheaves give just one kind of example); and explain how this notion gives a satisfactory general framework for making sense of the idea of partial truth. Then I review (in Section 4) how our proposal applies this framework to the case of physical theories. (shrink)

We further develop a recent new proof (by Greenberger, Horne, and Zeilinger—GHZ) that local deterministic hidden-variable theories are inconsistent with certain strict correlations predicted by quantum mechanics. First, we generalize GHZ's proof so that it applies to factorable stochastic theories, theories in which apparatus hidden variables are causally relevant to measurement results, and theories in which the hidden variables evolve indeterministically prior to the particle-apparatus interactions. Then we adopt a more general measure-theoretic approach which requires that GHZ's argument be modified (...) in order to produce a valid proof. Finally, we motivate our more general proof's assumptions in a somewhat different way from previous authors in order to strengthen the implications of our proof as much as possible. After developing GHZ's proof along these lines, we then consider the analogue, for our proof, of Bohr's reply to the EPR argument, and conclude (pace GHZ) that in at least one respect (viz. that of most concern to Bohr) the proof is no more powerful than Bell's. Nevertheless, we point out some new advantages of our proof over Bell's, and over other algebraic proofs of nonlocality. And we conclude by giving a modified version of our proof that, like Bell's, does not rely on experimentally unrealizable strict correlations, but still leads to a testable “quasi-algebraic” locality inequality.“... to admit things not visible to the gross creatures that we are is, in my opinion, to show a decent humility, and not just a lamentable addiction to metaphysics.”J. S. Bell. (shrink)

Christian realism is undergoing a renaissance in both American Christianity and around the world. Caught between globalist liberalism, on the one hand, and pragmatic realism on the other, Christians are in search of international ethics, a standard and tradition in foreign policy, that takes the two great books of life, the Christian Scriptures and the world we live in, seriously. This book is an extended, edited collection that mines the tradition of Christian realism in international relations and finds in it (...) voices and mentors urgently fresh for a new age. With classic authors like Reinhold Niebuhr, Herbert Butterfield, Paul Ramsey, and Jean Bethke Elshtain, and contemporaries like Marc LiVecche, Rebecca Heinrichs, and others, this collection offers for the first time an organization, periodization, and collection of primary Christian realist sources for the initiate and the expert in foreign relations."--Provided by publisher. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Journal of the History of Ideas 64.4 (2003) 599-618 [Access article in PDF] The "Herbert Butterfield Problem" and its Resolution Keith C. Sewell Dordt College Herbert Butterfield (1900-1979) 1 published The Whig Interpretation of History in 1931, a year after he became a Lecturer in the University of Cambridge. 2 He became Professor of Modern History in the university in 1944, the same year in which he (...) published The Englishman and His History. 3 This discussion addresses what J.G.A. Pocock referred to as das Herbert Butter-fieldproblem—that is, the problem of ascertaining the precise relationship between the arguments presented in these volumes. 4The Whig Interpretation of History of 1931 (hereafter, The Whig Interpretation) was a sustained critique of the motivation, methods and fallacious conclusions of the "Whig" practice of staging historiographical narratives anachronistically so as to produce a ratification of the present, or justification of a position currently espoused by the author. 5 The term "Whig," as Butterfield used it in 1931, referred to the nineteenth-century school of historiography that praised "progress," "protestantism," and "liberty" and that generally attributed the triumph of such principles to the beliefs and activities of generations of Whig politicians. 6 [End Page 599]The Whig Interpretation argued that the judgments concerning both progressive and reactionary individuals and movements in Whig historiography were anachronistic, in that they were based on general propositions held by the Whig historian in the present. To correct this error Butterfield argued that historiography should not be based upon any general propositions. Basing historiographical narratives on general propositions purporting to be of universal and unchanging validity was seen as inevitably placing them on an anachronistic basis. In The Whig Interpretation Butterfield required the historian to represent past "life itself " but to avoid doing so on the basis of a view or "interpretation" of past human experience and action. Historiographical narration should be free of any interpretative standpoint and equally open to any possible subsequent interpretation. For Butterfield "the historian carries us away from the world of general ideas. It is not for him to give a philosophical explanation of what happens in time and space"; "any history that he writes ought to be as capable of varied philosophical interpretation as life itself seems to be... the historian's explanation... is not a piece of general reasoning," and "if at any point we need further elucidation all that he can do is to take us into greater detail." 7 It seems appropriate to refer to this as Butterfield's "neutrality postulate." Butterfield subsequently used the term "technical history" to denote this methodological concept. 8As might be expected, such a neutrality postulate was replete with problems, however valid Butterfield's strictures towards Whig historiographical anachronism. How is the historian to abridge for the purposes of narration and explanation without interpreting? Butterfield argued that we are right to demand of the historian that "he shall not change the meaning and purport of the historical story in the mere act of abridging it." No theory should intrude. As the detailed complexity is abridged, there should be no loss of "the purport and tenor of the whole." 9 Abridgment was to be accomplished without interpretative perspective, even though sympathy and imagination are indispensable. 10 Such was Butterfield's prescribed antidote. Yet the exercise he recommended requires more than a specific statement of the concrete, the individual, and the particular. It also requires a general idea of the "meaning" of "the whole" that the historian is called upon not to distort. Indeed, Butterfield drew attention to the basis of his historical thinking when he asserted that while historical research does not provide proof of the existence of a providential order, it nevertheless provides evidence of how profound and mysterious are its workings. 11In The Whig Interpretation no attempt was made to reconcile the advocacy of a non-interpretative neutrality dealing exclusively with the individual, the [End Page 600] concrete and the particular, and Butterfield's actual belief in a providential order to which the historical process is subject. After 1931... (shrink)

I survey some of the connections between the metaphysics of the relation between mind and matter, and quantum theory’s measurement problem. After discussing the metaphysics, especially the correct formulation of physicalism, I argue that two state-reduction approaches to quantum theory’s measurement problem hold some surprises for philosophers’ discussions of physicalism. Though both approaches are compatible with physicalism, they involve a very different conception of the physical, and of how the physical underpins the mental, from what most philosophers expect. And one (...) approach exemplifies a a problem in the definition of physicalism which the metaphysical literature has discussed only in the abstract. A version of the paper has appeared in Consciousness and Human Identity, ed. John Cornwell, OUP 1998. (shrink)

I discuss Julian Barbour's Machian theories of dynamics, and his proposal that a Machian perspective enables one to solve the problem of time in quantum geometrodynamics (by saying that there is no time!). I concentrate on his recent book, The End of Time (1999). A shortened version will appear in The British Journal for Philosophy of Science}.

Abstract:This field survey focused on two constructs that have been developed to represent the ethical context in organizations: ethical climate and ethical culture. We first examined issues of convergence and divergence between these constructs through factor analysis and correlational analysis. Results suggested that the two constructs are measuring somewhat different, but strongly related dimensions of the ethical context. We then investigated the relationships between the emergent ethical context factors and an ethics-related attitude (organizational commitment) and behavior (observed unethical conduct) for (...) respondents who work in organizations with and without ethics codes. Regression results indicated that an ethical culture-based dimension was more strongly associated with observed unethical conduct in code organizations while climate-based dimensions were more strongly associated with observed unethical conduct in non-code organizations. Ethical culture and ethical climate-based factors influenced organizational commitment similarly in both types of organizations. Normative implications of the study are discussed, as are implications for future theorizing, research and management practice. (shrink)

Information can be public among a group. Whether or not information is public matters, for example, for accounts of interdependent rational choice, of communication, and of joint intention. A standard analysis of public information identifies it with (some variant of) common belief. The latter notion is stipulatively defined as an infinite conjunction: for p to be commonly believed is for it to believed by all members of a group, for all members to believe that all members believe it, and so (...) forth. This analysis is often presupposed without much argument in philosophy. Theoretical entrenchment or intuitions about cases might give some traction on the question, but give little insight about why the identification holds, if it does. The strategy of this paper is to characterize a practical-normative role for information being public, and show that the only things that play that role are (variants of) common belief as stipulatively characterized. In more detail: a functional role for “taking a proposition for granted” in non-isolated decision making is characterized. I then present some minimal conditions under which such an attitude is correctly held. The key assumption links this attitude to beliefs about what is public. From minimal a priori principles, we can argue that a proposition being public among a group entails common commitment to believe among that group. Later sections explore partial converses to this result, the factivity of publicity and publicity from the perspective of outsiders to the group, and objections to the aprioricity of the result deriving from a posteriori existential presuppositions. (shrink)

This article offers a reinterpretation of the origins and character of the so-called ‘Cambridge School’ in the history of political thought by reconstructing the intellectual background to J.G.A. Pocock's 1962 essay ‘The History of Political Thought: A Methodological Enquiry’, typically regarded as the first statement of a ‘Cambridge’ approach. I argue that neither linguistic philosophy nor the celebrated work of Peter Laslett exerted a major influence on Pocock's work between 1948 and 1962. Instead, I emphasise the importance of Pocock's interest (...) in the history of historiography and of his doctoral supervisor, Herbert Butterfield. By placing Pocock's intellectual development in these contexts, I suggest, the autonomy of diverse versions of the ‘Cambridge’ approach can more readily be perceived. (shrink)

The current status of localization and related concepts, especially localized statevectors and position operators, within Lorentz-invariant Quantum Theory (LIQT) is ambiguous and controversial.1 Ever since the early work of Newton & Wigner (1949), and the subsequent extensions of their work, particularly by Hegerfeldt (1974, 1985), it has seemed impossible to identify localized statevectors or position operators in LIQT that were not counterintuitive—strange—in one way or another; the most striking strange property being the superluminal propagation of the localized states. The ambiguous (...) and controversial status of these concepts arises from the varied reactions that workers have to the strange properties. Some regard them, particularly the superluminal propagation, as utterly unacceptable, and conclude that no precise concepts of localized statevectors and position operators exist in LIQT (Wigner 1973, p. 325-327; 1983, pp. 310-313; Malament 1996). Others downplay the whole issue, on the grounds that current theoretical and experimental practice has no need of sharply formulated concepts of localization, localized states etc. (Birrell & Davies 1984, pp. 48-59; Haag 1992, p. 34). Still others, including ourselves, believe that the superluminal propagation does not lead to causal contradictions, and is not in conflict with available empirical data: so that it should not be ruled out. We also believe that the other strange properties are merely unfamiliar novelties of LIQT which we must simply learn to accept. (Like the superluminal propagation, they do not lead to causal contradictions, nor conflict with available data.) So in this paper, we aim to help remove the ambiguous and controversial status of localization concepts in LIQT. Overall, our strategy will be to assess a number of localization concepts, and thereby clarify the often complex relationships among them. (shrink)