We show that cast shadows can have a significant influence on the speed of visual search. In particular, we find that search based on the shape of a region is affected when the region is darker than the background and corresponds to a shadow formed by lighting from above. Results support the proposal that an early-level system rapidly identifies regions as shadows and then discounts them, making their shapes more difficult to access. Several constraints used by this system are mapped (...) out, including constraints on the luminance and texture of the shadow region, and on the nature of the item casting the shadow. Among other things, this system is found to distinguish between line elements (items containing only edges) and surface elements (items containing visible surfaces), with only the latter deemed capable of casting a shadow. (shrink)

Climate negotiations under the United Nations Framework Convention on Climate Change have so far failed to achieve a robust international agreement to reduce greenhouse gas emissions. Game theory has been used to investigate possible climate negotiation solutions and strategies for accomplishing them. Negotiations have been primarily modelled as public goods games such as the Prisoner’s Dilemma, though coordination games or games of conflict have also been used. Many of these models have solutions, in the form of equilibria, corresponding to possible (...) positive outcomes—that is, agreements with the requisite emissions reduction commitments. Other work on large-scale social dilemmas suggests that it should be possible to resolve the climate problem. It therefore seems that equilibrium selection may be a barrier to successful negotiations. Here we use an N-player bargaining game in an agent-based model with learning dynamics to examine the past failures of and future prospects for a robust international climate agreement. The model suggests reasons why the desirable solutions identified in previous game-theoretic models have not yet been accomplished in practice and what mechanisms might be used to achieve these solutions. (shrink)

Engineering the Climate: The Ethics of Solar Radiation Management is a wide-ranging and expert analysis of the ethics of the intentional management of solar radiation. This book will be a useful tool for policy-makers, a provocation for ethicists, and an eye-opening analysis for both the scientist and the general reader with interest in climate change.

Preparing the Next Generation of Oral Historians is an invaluable resource to educators seeking to bring history alive for students at all levels. Filled with insightful reflections on teaching oral history, it offers practical suggestions for educators seeking to create curricula, engage students, gather community support, and meet educational standards. By the close of the book, readers will be able to successfully incorporate oral history projects in their own classrooms.

Echoing the debate about the nature of law that has dominated legal philosophy for several decades, this volume includes essays on the nature of law and on law not as it is but as it should be. Wherever possible, essays have been chosen that have provoked direct responses from other legal philosophers, and in two cases these responses are included. Contributors include H.L.A. Hart, R.M. Dworkin, Lord Patrick Devlin, John Rawls, J.J. Thomson, J. Finnis, and T.M. Scanlon.

In recent years there has been a major revival of interest in the political philosophy of Immanuel Kant. Thinkers have looked to Kant's theories about knowledge, history, the moral self and autonomy, and nature and aesthetics to seek the foundations of their own political philosophy. This volume, written by established authorities on Kant as well as by new scholars in the field, illuminates the ways in which contemporary thinkers differ regarding Kantian philosophy and Kant's legacy to political and ethical theory. (...) The book contains essays by Patrick Riley, Lewis White Beck, Mary Gregor, and Richard L. Velkley that place Kant in the tradition of political philosophy; chapters by Dieter Henrich, Susan Shell, Michael W. Doyle, and Joseph M. Knippenberg that examine Kantian perspectives on history and politics; contributions by William A. Galston, Bernard Yack, William James Booth, and Ronald Beiner that judge the Kantian legacy; and classic discussions by John Rawls, Jürgen Habermas, Charles Taylor, and Hans-Georg Gadamer that present different perspectives on contemporary debates about Kant. (shrink)

Several authors, e.g. Patrick Suppes and I. J. Good, have recently argued that the paradox of confirmation can be resolved within the developing subjective Bayesian account of inductive reasoning. The aim of this paper is to show that the paradox can also be resolved by the rival orthodox account of hypothesis testing currently employed by most statisticians and scientists. The key to the orthodox statistical resolution is the rejection of a generalized version of Hempel's instantiation condition, namely, the condition (...) that a PQ is inductively relevant to the hypothesis $(x)(Px\supset Qx)$ even in the absence of all further information. Though their reasons differ, it turns out that Bayesian and orthodox statisticians agree that this condition lies at the heart of the paradox. (shrink)

ABSTRACT During the middle decades of the twentieth century, American Catholic scientists experienced a sense of crisis owing to the paucity of scientific research performed either by individual Catholics or in Catholic institutions of higher learning. In 1953 the Rev. Patrick Yancey, S.J., the chairman of the biology department at a small Jesuit college and a member of the newly created National Science Board, led efforts to establish a national organization of Catholic scientists. Subsequently known as the Albertus Magnus (...) Guild, this organization attempted both to improve Catholics’ scientific performance and to refute the widely held notion among non‐Catholic Americans that Catholicism was inherently hostile to science. By reflecting on Yancey’s career as an educator and scientist and on the history of the guild, this article seeks to deepen our understanding of twentieth‐century Catholic science education and reveal the ways in which Catholic scientists approached the issues surrounding the interaction of science and religion. (shrink)

Ronald Dworkin famously argued that many putatively nonmoral metaethical theories can only be understood as being internal to the moral domain. If correct, this position, referred to as anti-archimedeanism, has profound implications for the methodology of metaethics. This is particularly true for skeptical metaethical theories. This article defends a version of anti-archimedeanism that is true to the spirit rather than the letter of Dworkin's original thesis from several recent objections. First, it addresses Kenneth Ehrenberg's recent attempt to demonstrate how (...) certain metaethical theories can be understood in a morally neutral manner. It then discusses Charles Pigden's claim that Dworkin begs the question against error theorists and nihilists by assuming a conceptual space that error theorists and nihilists would reject. It concludes that the anti-archimedean methodology originally proposed by Dworkin is defensible, and can be used to support a robust form of moral realism. (shrink)

Ronald Dworkin's Tanner Lectures, “Foundations of Liberal Equality,” have hardly elicited comment within the academic political theory community. This is surprising for a number of reasons. First, Dworkin is widely taken to be one of the leading liberal theorists in the English-speaking world, and “Foundations” is a major statement (120 pages in length) involving reflection upon issues of principle that are at the center of contemporary scholarly debate among liberals. Secondly, “Foundations” introduces a number of ideas and concepts that (...) are new in Dworkin's corpus and that serve to illuminate and clarify some of his wdely discussed earlier works, especially the famous article “Liberalism,” which sparked so much argument over the idea of neutrality and its place within liberal political theory. Finally, the lectures are interesting because of the approach they take to the matter of “defending liberalism,” an approach that departs in interesting and significant ways from those presently pursued by other leading liberal thinkers, notably John Rawls and Joseph Raz. (shrink)

An American conservative movement developed rapidly after World War II. It brought together intellectuals and politicians opposed to the New Deal in domestic policy and Soviet communism in foreign policy. The movement's first presidential candidate, Barry Goldwater, lost the election of 1964 but its second, Ronald Reagan, won the election of 1980. It has remained an influential force in American life up to the present, despite strong internal contradictions, which include disagreements about centralized power, about religion, about tradition, about (...) elites, and about the free market. To some of the movement's early luminaries, such as Russell Kirk, free-market capitalism was the antithesis of conservatism since it required perpetual innovation and the sweeping away of traditional forms. To others, such as Ayn Rand, capitalism was the heart and soul of conservatism because it alone preserved the dignity and freedom of the individual. (shrink)

: This paper explores some of the challenges raised by human genetic interventions for debates about distributive justice, focusing on the challenges that face prioritarian theories of justice and their relation to the argument advanced by Ronald Lindsay elsewhere in this issue of the Kennedy Institute of Ethics Journal. Also examined are the implications of germ-line genetic enhancements for intergenerational justice, and an argument is given against Fritz Allhoff's conclusion, found in this issue as well, that such enhancements are (...) morally permissible if and only if they augment primary goods. (shrink)

In debating Patrick Devlin, H. L. A. Hart claimed that the “modern form” of the debate over the legal enforcement of morals centered on the “significance to be attached to the historical fact that certain conduct, no matter what, is prohibited by a positive morality.” This form of the debate was politically important in 1963 in Britain and America, and it remains politically important in these countries today and elsewhere; but it is not the philosophically most interesting form the (...) debate can take. An older form of the debate appealed to natural law or critical morality. It centered on the question of whether political authorities could properly use the criminal law to enforce critical morality, including prohibitions on conduct that was not harmful or disrespectful to others. This paper engages with this older form of the debate. It offers some reasons for thinking that there is a presumption in favor of the view that it is a proper function of the criminal law to enforce critical morality, including that part of critical morality that is not directly concerned with preventing harm or disrespect to others. It then defends this presumption against some arguments recently pressed by Ronald Dworkin. (shrink)

Contemporary liberal thinkers commonly suppose that there is something in principle unjust about the legal prohibition of putatively victimless crimes. Here Robert P. George defends the traditional justification of morals legislation against criticisms advanced by leading liberal theorists. He argues that such legislation can play a legitimate role in maintaining a moral environment conducive to virtue and inhospitable to at least some forms of vice. Among the liberal critics of morals legislation whose views George considers are Ronald Dworkin, Jeremy (...) Waldron, David A.J. Richards, and Joseph Raz. He also considers the influential modern justification for morals legislation offered by Patrick Devlin as an alternative to the traditional approach. George closes with a sketch of a "pluralistic perfectionist" theory of civil liberties and public morality, showing that it is fully compatible with a defense of morals legislation. Making Men Moral will interest legal scholars and political theorists as well as theologians and philosophers focusing on questions of social justice and political morality. (shrink)

This work is a controversial collection of interrelated papers investigating and arguing about issues of concern to lawyers and politicians today. MacCormick combines a scholarly concern with leading thinkers such as John Locke, Lord Stair, Adam Smith and David Hume, John Rawls, Ronald Dworkin, and Patrick Atiyah, and stringently argued view of questions of political obligation, civil liberty, and legal rights.

The underlying thesis of the research in ethical autonomy for lethal autonomous unmanned systems is that they will potentially be capable of performing more ethically on the battlefield than are human soldiers. In this article this hypothesis is supported by ongoing and foreseen technological advances and perhaps equally important by an assessment of the fundamental ability of human warfighters in today's battlespace. If this goal of better-than-human performance is achieved, even if still imperfect, it can result in a reduction in (...) noncombatant casualties and property damage consistent with adherence to the Laws of War as prescribed in international treaties and conventions, and is thus worth pursuing vigorously. (shrink)

Modeling work by Brian Skyrms and others in recent years has transformed the theoretical role of David Lewis's 1969 model of signaling. The latter can now be understood as a minimal model of communication in all its forms. In this article, we explain how the Lewis model has been generalized, and consider how it and its variants contribute to ongoing debates in several areas. Specifically, we consider connections between the models and four topics: The role of common interest in communication, (...) signaling within the organism, meaning, and the evolution of human communication and language. (shrink)

The arbitrariness of a signal has long been seen as a theoretically important but difficult to pin down notion. In this article, we suggest there are at least two different notions of arbitrariness at play in philosophical and scientific debates concerning the use of arbitrary signals, and work towards improved analyses of both. We then consider how these different types of arbitrariness can co-occur and come apart. Finally, we examine the connections between these two types of arbitrariness and the cognitive (...) complexity of signal users with an eye towards better evaluating one possible form of human-nonhuman communicative continuity. We show that each type of arbitrariness bears its own nuanced relationship to cognitive complexity, demonstrating the theoretical importance of keeping these two notions separate. (shrink)

The concept of food sovereignty is primarily taken as an alternative to the prevailing neoliberal food security model. However, the approach has hitherto not received adequate attention from policy makers. This could be because the discourse is marked by controversies and contradictions, particularly regarding its ability to address the challenges of feeding a rapidly growing global population. In response to these criticisms, this paper argues that the principles of food sovereignty, such as democratic and transparent food systems, agroecology, and local (...) market prioritization, should be fundamental pillars for achieving sustainable food security. It acknowledges that neither food sovereignty nor food security models alone can guarantee long-term food security, thus advocating for a blended approach that integrates these perspectives into a complex and interconnected system. This paper makes three significant contributions to the existing literature. Firstly, it emphasizes that food sovereignty should be seen as an integral component of transforming food systems towards sustainability, rather than a complete departure from neoliberal food systems. Secondly, it highlights the importance of adopting a multi-scalar approach, where decisions and policies for transforming food systems are context-specific and tailored to local circumstances. Lastly, the paper recognizes the necessity of institutional transformations that involve nation-states, social movements, and civil society organizations as key actors in the process of food system transformation. By reframing the discussion on food sovereignty and its relationship with food security, this paper provides insights into how these concepts can be mutually reinforcing, leading to more sustainable and equitable food systems. (shrink)

I critically evaluate the influential new wave account of theory reduction in science developed by Paul Churchland and Clifford Hooker. First, I cast doubt on claims that the new wave account enjoys a number of theoretical virtues over its competitors, such as the ability to represent how false theories are reduced by true theories. Second, I argue that the genuinely novel claim that a corrected theory must be specified entirely by terms from the basic reducing theory is in fact too (...) restrictive for scientific practice and should be rejected. Basic theories co-evolve with nonbasic theories in a mutually interactive way, and thus the basic theories incorporate the concepts and concerns of nonbasic theories. Third, I show that once its ontological consequences are duly noted, the reductive part the new wave account collapses into the classical theory developed within the logical empiricist tradition. As such, it still falls prey to standard anti-reductionist argument based upon multiple realizability and the cross-classification of special science and physical science terms. (shrink)

ABSTRACT As bioethics emerged in the 1960s and 1970s and began to have enormous impacts on the practice of medicine and research – fuelled, by broad socio‐political changes that gave rise to the struggle of women, African Americans, gay men and lesbians, and the antiauthoritarian impulse that characterised the New Left in democratic capitalist societies – little attention was given to the question of the ethics of public health. This was all the more striking since the core values and practices (...) of public health, often entailing the subordination of the individual for the common good, seemed opposed to the ideological impulses of bioethics. Of what relevance is autonomy‐focused bioethics for public health, with its mix of justifications including those that are either implicitly or explicitly paternalistic or that seek to impose strictures on individuals and communities in the name of collective welfare? To examine the deep divide between the central commitments of bioethics and the values that animate the practice of public health, we focus on a series of controversies implicating the concepts of privacy, liberty, and paternalism. Recognising the role of moral values in decision‐making was a signal contribution of bioethics in its formative period. Over the past three decades a broad array of perspectives emerged under the rubric of bioethics but individualism remains central. As we commence the process of shaping an ethics of public health, it is clear that bioethics is the wrong place to start when thinking about the balances required in defence of the public's health. (shrink)

Business schools have a responsibility to incorporate applied business ethics courses as part of their undergraduate and MBA curriculum. The purpose of this article is to take a background and historical look at reasons for the new emphasis on ethical coursework in business schools. The article suggests a prescription for undergraduate and graduate education in applied business ethics and explores in detail the need to increase applied business ethics courses in business schools to enhance the ethical development of students.

Religious atheism? -- The universe -- Religious freedom -- Death and immortality.

This article addresses the question of whether early Pleistocene hominins are plausibly viewed as having possessed a protolanguage, that is, a communication system exemplifying some but not all of the distinctive features of fully modern human language. I argue that the answer is “yes,” mounting evidence from the early Pleistocene “lithics niche.” More specifically, I first describe a cognitive platform that I think would have been sufficient, given appropriate socio-ecological conditions, for the creation and retention of a protolanguage. Then, using (...) archaeological evidence pertaining to hominin lithic behavior from the early Pleistocene, I attempt to make plausible the idea that each of these cognitive abilities were in fact in place by this point in hominin evolutionary history and also that the requisite socio-ecological conditions were satisfied. (shrink)

Some recent physiological data indicate that the “subjective timing” of experiences can be “automatically referred backwards in time” to represent a sequence of events even though the earlier portions of associated neurophysiological activity are themselves insufficient to elicit the experience of any sensation. The challenge, then, is to explain how subjects can experience what they do in the reported ways when, if one looked just at certain neurophysiological activity, it would seem that perhaps subjects should report their sensations differently. The (...) phenomenon has seemed sufficiently remarkable to the neurobiologist John Eccles to count as evidence for mind-body dualism. This dualistic interpretation has resulted in a spirited attack by P. S. Churchland on both the physiological research and the dualistic interpretation. Her attack resulted in an equally spirited defense of the research by the primary investigator, B. Libet, where he reaffirmed his more guarded interpretation that “the temporal discrepancy creates relative difficulties for identity theory, but that these are not insurmountable”. In turn, Churchland has defended her criticism of Libet's research so that, for her, Libet's hypothesis remains “infirm and unconfirmed”. (shrink)

The use of idealizations and approximations in scientific explanations poses a problem for traditional philosophical theories of confirmation since, strictly speaking, these sorts of statements are false. Furthermore, in several central cases in the history of science, theoretical predictions seen as confirmatory are not, in any usual sense, even approximately true. As a means of eliminating the puzzling nature of these cases, two theses are proposed. First, explanations consist of idealized deductive-nomological sketches plus what are called modal auxiliaries, i.e., arguments (...) showing that if the idealizations used in the initial conditions are improved, then there will be an improvement in the prediction. Second, a theory is confirmed if it can be shown that its idealized sketches can be improved; similarly, a theory is disconfirmed if its idealized sketches cannot be improved. Several examples are given to illustrate both confirmation and disconfirmation achieved by means of the modal auxiliary. These cases are compared with Scriven's bridge example. (shrink)

Using the Schwarzschild calculation of the Relativistic bending of starlight near the sun as an illustration, it is shown that the relationship between theory and data requires a hierarchy of structures of different logical type. An essential feature of this hierarchy is the use of idealizations and approximate truths. On the basis of a counterfactual analysis of these concepts, it is shown that confirmation is possible even though statistical measures of goodness of fit are not satisfied. The consequences of this (...) view of confirmation and hierarchical structure for scientific realism are then considered. (shrink)

Bad Faith and Sincerity: Does Sartre's Analysis Rest on a Mistake? In this opening chapter, I intend to deal with an issue that vexed my earliest ...

The claim that " Everyone's doing it" is frequently offered as a reason for engaging in behavior that is widespread but less-than-ideal. This is particularly true in business, where competitors' conduct often forces hard choices on managers. When is the claim " Everyone's doing it" a morally valid reason for following others' lead? This discussion proposes and develops five prima facie conditions to identify when the existence of prevalent but otherwise undesirable behavior provides a moral justification for our engaging in (...) such behavior ourselves. The balance of the discussion focuses on testing these conditions by applying them to aseries of representative cases in business ethics. (shrink)

The importance of institutionalizing ethics within an organization cannot be underestimated.

This article addresses the implications of rapid and uncertain ecological change, and global climate change in particular, for reserve oriented and restoration oriented ecosystem management. I argue for the following conclusions: (1) rapid and uncertain ecological change undermines traditional justifications for reserve oriented and restoration oriented ecosystem management strategies; (2) it requires rethinking ecosystem management goals, not just developing novel strategies (such as assisted colonization) to accomplish traditional goals; (3) species preservation ought to be deemphasized as an ecosystem management goal; (...) (4) reserve oriented ecosystem management remains well justified, but the goals for it must be revised. (shrink)

Husserl has finally begun to be recognized as the precursor of current interest in intentionality — the first to have a general theory of the role of mental representations in the philosophy of language and mind. As the first thinker to put directedness of mental representations at the center of his philosophy, he is also beginning to emerge as the father of current research in cognitive psychology and artificial intelligence.

Synthetic biology makes use of genetic and other materials derived from modern biological life forms to design and construct novel synthetic organisms. Artificial organisms are not constructed from parts of existing biological organisms, but from non-biological materials. Artificial and synthetic organisms are artefactual organisms. Here we are concerned with the non-instrumental value of such organisms. More specifically, we are concerned with the extent to which artefactual organisms have natural value, inherent worth and intrinsic value. Our conclusions are largely supportive of (...) the value of artefactual organisms. However, they do not constitute a comprehensive ethical evaluation of them. (shrink)