Porphyry’s position in the ancient hermeneutic tradition should be considered separately from his place in the Platonic tradition. He shows considerable respect for allegorizing interpreters with links to Pythagoreanism, particularly Numenius and Cronius, prominent sources in On the Cave of the Nymphs. The language of Homer’s Cave passage is demonstrably distinctive, resembling the Shield passage in the Iliad, and such as to suggest an ecphrasis to early imperial readers. Ecphrasis in turn suggested deeper significance for the story. While largely content (...) to follow Numenian trends in interpreting Homer’s cave symbolically and in relation to multiple belief-systems, Porphyry shows occasionally signs of wanting to adhere more closely to Homeric evidence, resorting to symbolic interpretation mainly when no more straightforward truth is on offer. (shrink)

Recent just war thought has tended to prioritize just cause among the moral criteria to be satisfied for resort to armed force, reducing the requirement of sovereign authority to a secondary, supporting role: such authority is to act in response to the establishment of just cause. By contrast, Aquinas and Luther, two benchmark figures in the development of Christian thought on just war, unambiguously gave priority to the requirement of sovereign authority as instituted by God to carry out the responsibilities (...) of ensuring a just and peaceful order in the world. On this conception it is the sovereign, in deciding whether to resort to armed force, who must make sure to satisfy the other moral requirements of the jus ad bellum. This paper examines Aquinas and Luther on sovereign authority for use of armed force. Recapturing the importance of this conception is important both for the proper understanding of just war tradition and for working out its implications for such contemporary issues as humanitarian intervention and "regime change.". (shrink)

It is standard to attribute to Kant the view that actions from motives other than duty deserve no positive moral evaluation. I argue that the standard view is mistaken. Kant's account of merit in the Metaphysics of Morals shows that he believes actions not performed from duty can be meritorious. Moreover, the grounds for attributing merit to an action are different from those for attributing moral worth to it. This is significant because it shows both that his views are reasonably (...) consistent with our ordinary views, and that he recognized a variety of purposes in evaluating actions, many of which are not furthered by determining whether they were motivated by duty. (shrink)

Lévi-Strauss's concept of bricolage, first formulated in La Pensée sauvage in 1962, was originally presented as an analogy for how mythical thought works, selecting the fragments or left-overs of previous cultural formations and re-deploying them in new combinations. Significantly, from its source in structural anthropology, the concept has travelled in two directions, towards both the sciences and the humanities. The aim of this article is to return to Lévi-Strauss's original formulation of bricolage in order to explore the ways in which (...) this technical metaphor transcends its status as simply a metaphor and becomes something like a universal concept. As the key opposition between the bricoleur and the engineer demonstrates, bricolage is also an ideological construct which carries with it a set of suppositions about the nature of science and technology in the post-war world. Looking at the wider scientific imaginary which informs this vision — in particular, Lévi-Strauss's representation of nuclear science — the article concludes by arguing for a more comprehensive understanding of the concept of bricolage as applicable not simply to traditional or residual forms of human activity, but also to the practice — and indeed the essence — of modern scientific and technological development. (shrink)

I examine the role that Descartes’ theory of optics shapes the entire Cartesian methodology. After explaining the importance of methodology in Descartes’ project, I his method in terms of the three dimensions of time. I put this method to work by describing Descartes’ search for the elusive hyperbolic lens, a lens that would offer the type of perfect vision that is necessary for the Cartesian scientific process. It will soon become clear that this lens is the mind itself. The task (...) of this project is thus to sculpt the mind so as to achieve the highest clarity and distinctness of scientific vision. Thus, by focusing on how the eye works and how seeing can be improved, the subject and the objects it sees both radically transform in structure, content, and kind. The Cartesian corpus thus initiates a sort of specular regime that produces a new subjectivity and a new world. (shrink)

Cooperative learning processes have been rediscovered and are being used throughout the country on every level. The basic elements of cooperative goal structure are positive interdependence, individual accountability, face-to-face interaction, and cooperative skills. The teacher's role in structuring cooperative learning situations involves clearly specifying lesson objectives, placing students in productive learning groups and providing appropriate materials, clearly explaining the cooperative goal structure, monitoring students, and evaluating performance. For cooperative learning groups to be productive, students must be able to engage in (...) the needed collaborative skills. Cooperative skills and academic skills can be taught simultaneously. The implementation of cooperative learning needs to be coupled with the implementation of collaborative professional support groups among educators. Both the success of implementation efforts and the quality of life within most schools depend on teachers and other staff members cooperating with each other. Support for the program takes as careful structuring and monitoring as does cooperative learning. (JD). (shrink)

SummaryThe Gainj of highland Papua New Guinea do not use contraception but have a total fertility rate of only 4·3 live births per woman, one of the lowest ever recorded in a natural fertility setting. From an analysis of cross-sectional demographic and endocrinological data, the causes of low reproductive output have been identified in women of this population as: late menarche and marriage, a long interval between marriage and first birth, a high probability of widowhood at later reproductive ages, low (...) effective fecundability and prolonged lactational amenorrhoea. These are combined with near-universal marriage, a low prevalence of primary sterility and a pattern of onset of secondary sterility similar to that found in other populations. Of all the factors limiting fertility, by far the most important are those involved in birth spacing, especially lactational amenorrhoea. (shrink)

Using an approach developed in the context of human bioethics, we argue that chimpanzees in research can be regarded as vulnerable subjects. This vulnerability is primarily due to communication barriers and situational factors—confinement and dependency—that make chimpanzees particularly susceptible to risks of harm and exploitation in experimental settings. In human research, individuals who are deemed vulnerable are accorded special protections. Using conceptual and moral resources developed in the context of research with vulnerable humans, we show how chimpanzees warrant additional safeguards (...) against harm and exploitation paralleling those for human subjects. These safeguards should include empowering third parties to act as surrogate decision makers for chimpanzees, ensuring participant “assent,” and avoiding recruitment of animal subjects based merely on convenience. (shrink)

The standard view of Kant’s retributivism, as well as its more recent reworking in the ‘limited’ or ‘partial’ retributivist reading are, it is argued here, inadequate accounts of Kant on punishment. In the case of the former, the view is too limited and superficial, and in the latter it is simply inaccurate as an interpretation of Kant. Instead, this paper argues that a more sophisticated and accurate rendering of Kant on punishment can be obtained by looking to his construction of (...) the concept of justice. In so doing, not only is a superior account of Kant furnished, but also one up to the task of resolving the vexed issue of justifying legal punishment. (shrink)

The multiverse hypothesis is growing in popularity among theistic philosophers because some view it as the preferable way to solve certain difficulties presented by theistic belief. In this paper, I am concerned specifically with its application to Rowe’s problem of no best world, which suggests that God’s existence is impossible given the fact that the world God actualizes must be unsurpassable, yet for any given possible world, there is one greater. I will argue that, as a solution to the problem (...) of no best world, the multiverse hypothesis fails. To defend my thesis, I will first define the multiverse hypothesis and articulate the problem of no best world and how the multiverse hypothesis is thought to solve it. I will then show that the solution fails by articulating two problems that have been mentioned, but not developed, in the literature—what I call the problem of no highest standard and the problem of multiverse cardinality. In each case, after articulating the problem, I will offer possible responses to the problem and show why those responses are inadequate. (shrink)

Financial and nonfinancial conflicts of interest in medicine and surgery are troubling because they have the capacity to skew decision making in ways that might be detrimental to patient care and well-being. The recent case of the Articular Surface Replacement (ASR) hip provides a vivid illustration of the harmful effects of conflicts of interest in surgery.

How do people make deductions? The orthodox view in psychology is that they use formal rules of inference like those of a “natural deduction” system.Deductionargues that their logical competence depends, not on formal rules, but on mental models. They construct models of the situation described by the premises, using their linguistic knowledge and their general knowledge. They try to formulate a conclusion based on these models that maintains semantic information, that expresses it parsimoniously, and that makes explicit something not directly (...) stated by any premise. They then test the validity of the conclusion by searching for alternative models that might refute the conclusion. The theory also resolves long-standing puzzles about reasoning, including how nonmonotonic reasoning occurs in daily life. The book reports experiments on all the main domains of deduction, including inferences based on prepositional connectives such as “if” and “or,” inferences based on relations such as “in the same place as,” inferences based on quantifiers such as “none,” “any,” and “only,” and metalogical inferences based on assertions about the true and the false. Where the two theories make opposite predictions, the results confirm the model theory and run counter to the formal rule theories. Without exception, all of the experiments corroborate the two main predictions of the model theory: inferences requiring only one model are easier than those requiring multiple models, and erroneous conclusions are usually the result of constructing only one of the possible models of the premises. (shrink)

Despite Robert Boyle’s enthusiasm as a leading chemist in the early years of the Royal Society, his experiments on animals raised acute moral and theological issues in regard to animal suffering. Many years after Boyle’s experiments in the scientific field of pneumatics, Joseph Wright of Derby painted a complex representation of Boyle’s early experiment called An Experiment on a Bird in an Air Pump. I use an art historical methodology to resituate Wright’s imagined painting of group performance as a microcosm (...) of 18th-century morality against the backdrop of Boyle’s profound eschatological beliefs and earlier discourse on animal ethics. (shrink)

The work presented here investigates the process by which one group of individuals solves the problem of detecting deceptions created by other agents. A field experiment was conducted in which twenty‐four auditors (partners in international public accounting firms) were asked to review four cases describing real companies that, unknown to the auditors, had perpetrated financial frauds. While many of the auditors failed to detect the manipulations in the cases, a small number of auditors were consistently successful. Since the detection of (...) frauds occurs infrequently in the work of a given auditor, we explain success by the application of powerful heuristics gained from experience with deceptions in everyday life. These heuristics implement a variation of Dennett's intentional stance strategy, which is based on interpreting detected inconsistencies in the light of the Deceiver's (i.e., management's) goals and possible actions. We explain failure to detect deception by means of perturbations (bugs) in the domain knowledge of accounting needed to apply these heuristics to the specific context of financial statement fraud. We test our theory by showing that a computational model of fraud detection that employs the proposed heuristics successfully detects frauds in the cases given to the auditors. We then modify the model by introducing perturbations based on the errors made by each of the auditors in the four cases. The resulting models account for 84 of the 96 observations (i.e., 24 auditors × four cases) in our data. (shrink)

There is ongoing ethical and legal debate about withdrawing life sup- port for patients with disorders of consciousness (DOCs). Frequently fu- eling the debate are implicit assumptions about the value of life in a state of impaired consciousness, and persistent uncertainty about the quality of life (QoL) of these persons. Yet there are no validated methods for assessing QoL in this population, and a significant obstacle to doing so is their inability to communicate. Recent neuroscientific discoveries might circumvent that problem (...) and help shed light on QoL in DOCs. There is an ethical imperative to prioritize QoL research in this patient population, to provide evidence to inform treatment, research, and end of life decisions. A minimalist and pragmatic model of QoL is proposed, targeting positive and negative affect as domains for which there is po- tential to reach across the communication gap, and restore to these voiceless persons some measure of control. (shrink)

McCall's system for contingent syllogisms is modified. A semantics for the resulting system is provided.

This dialogue discusses a proposal for the legalization of torture under specific circumstances and contrasts it with arguments for a total ban on torture. We consider three types of objection: first, that the difficulty of having adequate knowledge renders the stock “ticking bomb” scenario such a low-probability hypothetical as to present no realistic threat to a policy banning all torture; second, that empirically the information gleaned from torture is so unlikely to be reliable that it could not justify the moral (...) risk; and third, that sanctioning torture, even if only under the most extreme circumstances, would generate a ‘culture of torture,’ hence undermining fragile advances in international human rights rooted in unwavering commitment to human dignity. Compelling as these arguments appear, not all the conversants are wholly convinced by them; to this extent the dialogue ends aporetically. (shrink)

The phenomenon whereby severely disabled persons self-report a higher than expected level of subjective well-being is called the “disability paradox.” One explanation for the paradox among brain injury survivors is “response shift,” an adjustment of one’s values, expectations, and perspective in the aftermath of a life-altering, disabling injury. The high level of subjective well-being appears paradoxical when viewed from the perspective of the non-disabled, who presume that those with severe disabilities experience a quality of life so poor that it might (...) make their lives not worth living. This presumption has profound consequences, for it may inform end-of-life choices made in advance directives, or influence decisions made by surrogates on behalf of persons who are unable to direct their own medical treatment. -/- Peterson et al propose a cautious, well-considered plan to use fMRI-based brain-computer interfaces to assess the decision making capacity of covertly aware, behaviorally non-responsive individuals who retain high levels of preserved cognition. Their plan, if it succeeds, could eventually restore autonomy and empower some severely disabled persons, allowing them to participate in clinical decision making. Peterson et al discuss possible in-principle objections to their proposal, among them the “argument from psychological health,” and the “changing sets of values” objection. These objections both presume that deviations from a pre-injury norm could indicate diminished decision making capacity. This presumption threatens the autonomy of the patient who is capable of making decisions, but whose post-injury decisions appear to diverge from pre-injury preferences or values. In light of the potential for response shift, and the disability paradox, it should not be inferred that changes in values or preferences are unreflective of the true current preferences of a brain-injured person, nor are they conclusive evidence of diminished capacity. Presuming diminished capacity on the basis of unexpected or unconventional preferences has, in the past, been used to disempower patients whose autonomy and capacity would not have been doubted had they made choices that accorded with the expectations or values of others. We must be cautious, and vigilant, to prevent similarly diminishing the autonomy of covertly aware, behaviorally non-responsive individuals on the basis of empirically and ethically questionable inferences about their decision making capacity. (shrink)