Epistemic logic has grown from its philosophical beginnings to find diverse applications in computer science, and as a means of reasoning about the knowledge and belief of agents. This book provides a broad introduction to the subject, along with many exercises and their solutions. The authors begin by presenting the necessary apparatus from mathematics and logic, including Kripke semantics and the well-known modal logics K, T, S4 and S5. Then they turn to applications in the context of distributed systems and (...) artificial intelligence. These include the notions of common knowledge, distributed knowledge, explicit and implicit belief, the interplays between knowledge and time, and knowledge and action, as well as a graded (or numerical) variant of the epistemic operators. The authors also discuss extensively the problem of logical omniscience. They cover Halpern & Moses' theory of honest formulas, and they make a digression into the realm of nonmonotonic reasoning and preferential entailment. They discuss Moore's autoepistemic logic, together with Levesque's related logic of "all I know". Furthermore, they show how one can base default and counterfactual reasoning on epistemic logic. Graduate students in philosophy or in computer science, especially those with an interest in AI, will find this book useful. (shrink)

The article provides a critical analysis and a comparison of G. E. Moore and Ch. L. Stevenson’s accounts of meaning of evaluative terms. The author shows how these two accounts are interrelated and points out that although Moore never accepted emotivism himself he did not preclude the recognition of that theory as true in the future.

This article compares the ethical attitudes of Ukrainian business professionals with those of United States business professionals. A widely used survey instrument consisting of 16 hypothetical situations involving ethical dilemmas was employed to gather information on ethical attitudes in the two countries. On 13 of 16 vignettes, Ukrainian respondents demonstrated less stringent ethical attitudes than did their United States counterparts. Possible reasons for these differences are discussed, with primary emphasis on the transition from one economic system to another that is (...) underway in Ukraine. Comments from Ukrainian respondents are presented so as to give an indication of the thought processes behind the questionnaire responses. (shrink)

Physiological concentrations of retinoic acid can induce acute alterations in the expression of the enzyme tissue transglutaminase in cultured macrophages. The induction of this enzyme offers a probe to study the mechanism of retinoid action in both normal and leukemic cells.

This unique edited collection illuminates Paul Ricoeur's engagement with Scripture. The contributors include one of the primary translators, several who studied at the University of Chicago, and some of this generation's noted Ricoeur scholars. The essays discuss Hebrew and Christian Scripture, hermeneutics, and biblical scholarship.

Refiguring the Sacred offers perspectives on Ricoeur's life-long reflections about religion. This collection includes two essays by Ricoeur and new interpretations of some of his most significant writings by several noted Ricoeur scholars.

Research on the relationship between religious commitment and business ethics has produced widely varying results and made the impact of such commitment unclear. This study presents an empirical investigation based on a questionnaire survey of business managers and professionals in the United States yielding a database of 1234 respondents. Respondents evaluated the ethical acceptability of 16 business decisions. Findings varied with the way in which the religion variable was measured. Little relationship between religious commitment and ethical judgment was found when (...) responses were compared on the basis of broad faith categories – Catholic, Protestant, Jewish, other religions, and no religion. However, respondents who indicated that religious interests were of high or moderate importance to them demonstrated a higher level of ethical judgment (less accepting of unethical decisions) than others in their evaluations. Evangelical Christians also showed a higher level of ethical judgment. (shrink)

Questions about when to limit unhelpful treatments are often raised in general medicine but are less commonly considered in psychiatry. Here we describe a survey of U.S. psychiatrists intended to characterize their attitudes about the management of suicidal ideation in patients with severely treatment-refractory illness. Respondents (n = 212) received one of two cases describing a patient with suicidal ideation due to either borderline personality disorder or major depressive disorder. Both patients were described as receiving all guideline-based and plausible emerging (...) treatments. Respondents rated the expected helpfulness and likelihood of recommending each of four types of intervention: hospitalization, additional medication changes, additional neurostimulation, and additional psychotherapy. Across both cases, most respondents said they were likely to provide each intervention, except for additional neurostimulation in borderline personality disorder, while fewer thought each intervention would be helpful. Substantial minorities of respondents indicated that they would provide an intervention they did not think was likely to be helpful. Our results suggest that while most psychiatrists recognize the possibility that some patients are unlikely to be helped by available treatments, many would continue to offer such treatments. (shrink)

This article reports the findings of a survey examining if there are gender and career stage differences between male and female practitioners regarding ethical judgment. The results show that, on average, females adopted a more strict ethical stance than their male counterparts on 7 out of 19 vignettes. Males on the other hand, demonstrated a more ethical stance than their female counterparts on 2 out of 19 vignettes. The results furthermore indicate there is a significant difference in ethical judgment across (...) career stages. Overall, it appears that practitioners in later career stages display higher ethical judgment than practitoners in lower career stages. Implications are provided for both practitioners and academicians. (shrink)

Our studies of naturally occurring human dialogue have led to the recognition of a class of regularities which characterize impoltant aspects of communication. People appear to interact according to established patterns which span several turns in a dialogue and which recur frequently. These patterns appear to be organized around the goals which the dialogue serves for each participant. Many things which are said later in a dialogue can only be interpreted as pursuit of these goals, established by earlier dialogue.These patterns (...) have been represented b) a set of knowledge structures called Dialogue‐Games, capturing shared, conventional knowledge that people have about communication and how it can be used to achieve goals. A Dialogue‐Game has Parameters, which represent those elements that vary across instances of a particular pattern‐the particular dialogue participants and the content topic. The states of the world which must be in effect for a particular Dialogue‐Game to be employed successfully are represented by Specifications of these Parameters. Finally, the expected sequence of intermediate states that occur during instances of a particular conventional pattern are represented by the Components of the corresponding Dialogue‐Game.Representations for several Dialogue‐Games are presented here, based on our analyses of different kinds of naturally occurring dialogue. A process model is discussed, showing Dialogue‐Game identification, pursuit, and termination as part of the comprehension of dialogue utterances. This Dialogue‐Game model captures some of the important functional aspects of language, especially indirect uses to achieve implicit communication. (shrink)

This paper reports on the results from two studies that were conducted eight years apart with different respondents. The studies examined the role of the Mere Exposure Effect on ethical tolerance or acceptability of particular business decisions. The results from Study 1 show there is a significant difference in ethical judgment for 12 out of 16 vignettes between those who have been exposed to such situations compared to those who have not been exposed to them. In those 12 situations, those (...) who have been exposed to such situations adopted a more tolerant stance toward the ethically questionable behavior. The results from Study 2 show there is a significant difference in ethical judgment for 9 out of 16 vignettes between those who have been exposed to such situations compared to those who have not been exposed to them. Again, in those nine situations, those who have been exposed to such situations adopted a more tolerant stance toward the ethically questionable behavior. Interestingly, the 9 situations in Study 2 were 9 of the 12 situations found to be significant in Study 1, and in the same direction, suggesting that we have found consistency in our findings and support for the Mere Exposure Effect. Implications are provided for both higher education and practitioners. (shrink)