Epistemic entrenchment, as presented by Gärdenfors and Makinson (1988) and Gärdenfors (1988), is a formalisation of the intuition that, when forced to choose between two beliefs, an agent will giveup the less entrenched one. While their formalisation satisfactorilycaptures the intuitive notion of the entrenchment of beliefs in a number ofaspects, the requirement that all wffs be comparable has drawn criticismfrom various quarters. We define a set of refined versions of theirentrenchment orderings that are not subject to the same criticism, andinvestigate (...) the relationship between the refined entrenched orderings,the entrenchment orderings of Gärdenfors and Makinson, and AGM theorycontraction (Alchourrón et al., 1985). To conclude, we compare refinedentrenchment with two related approaches to epistemic entrenchment. (shrink)

Generalisations of theory change involving operations on arbitrary sets ofwffs instead of on belief sets (i.e., sets closed under a consequencerelation), have become known as base change. In one view, a base should bethought of as providing more structure to its generated belief set, whichmeans that it can be employed to determine the theory contraction operationassociated with a base contraction operation. In this paper we follow suchan approach as the first step in defining infobase change. We think of an infobase (...) as a finite set of wffs consisting of independently obtainedbits of information. Taking AGM theory change (Alchourrón et al. 1985) as the general framework, we present a method that uses the structure of aninfobase B to obtain an AGM theory contraction operation for contractingthe belief set Cn(B). Both the infobase and the obtained theory contraction operation then play a role in constructing a unique infobasecontraction operation. Infobase revision is defined in terms of an analogueof the Levi Identity, and it is shown that the associated theory revisionoperation satisfies the AGM postulates for revision. Because every infobaseis associated with a unique infobase contraction and revision operation, the method also allows for iterated base change. (shrink)

Books Reviewed in this Article: Towards a New Mysticism, Teilhard de Chardin and Eastern Religions. By Ursula King. Zen and the Bible: A Priest's Experience. By J.K. Kadowaki. Buddhism and Christianity, A Preface to Dialogue. By Georg Siegmund. Roman Catholicism: The Search for Relevance. By Bill McSweeney. The Church ‐ Maintained in Truth. By Hans Küng. The Communion of Saints. By Michael Perham. Identity and the Sacred: A Sketch for a New Social‐Scientific Theory of Religion. By Hans Mol. Sacrifice. Edited (...) by M.F.C. Bourdillon and Meyer Fortes. Theists and Atheists: A Typology of Non‐Belief By Thomas Molnar. Myth and Society in Ancient Greece. By Jean‐Pierre Vernant. The Alternative Tradition: Religion and the Rejection of Religion in the Ancient World. By James Thrower. Paulus im ältesten Christentum: Das Bild des Apostels and die Rezeption der paulinischen Theologie in der frühchristlichen Literatur bis Marcion. By Andreas Lindemann. Christ: the Christian Experience in the Modern World. By Edward Schillebeeckx. Interim Report on the Books “Jesus” and “Christ”. By Edward Schillebeeckx. Christologie im Präsens: Kritische Sichtung neuer Entwürfe. By Arno Schilson & Walter Kasper. Disput um Jesus and um Kirche. By Walter Kern. It is Not Lawful For Me To Fight: Early Christian Attitudes Toward War, Violence and the State. By Jean‐Michel Hornus. Byzantium and the Rise of Russia: A Study of Byzantino‐Russian Relations in the Fourteenth Century. By John Meyendorff. Reformation Principle and Practice: Essays in Honour of Arthur Geoffrey Dickens. Edited by Peter Newman Brooks. Adrianus Saravia. By Willem Nijenhuis. Rome and the Counter‐Reformation in Scandinavia, II. By Oskar Garstein. Winstanley the Digger: A Literary Analysis of Radical Ideas in the English Revolution. By T. Wilson Hayes. Perfect Fools. By John Saward. Lord Abbot of the Wilderness: The Life and Times of Bishop Salvado. By George Russo. St Edmund's House: The First Eighty Years. By Garrett Sweeney. Doubt and Religious Commitment: the Role of the Will in Newman's Thought. By M. Jaime Ferreira. The Philosophers: Their Lives and the Nature of Their Thought. By Ben‐Ami Scharfstein. Philosophies and Cultures. By Frederick C. Copleston. The Sceptical Feminist. By Janet Radcliffe Richards. Homosexuality and Ethics. Edited by Edward Batchelor, Jr. (shrink)

In this article, we focus on the concept of leadership ethics and make observations about transformational, transactional and servant leadership. We consider differences in how each definition of leadership outlines what the leader is supposed to achieve, and how the leader treats people in the organization while striving to achieve the organization's goals. We also consider which leadership styles are likely to be more popular in organizations that strive to maximize short run profits. Our paper does not tout or degrade (...) any of these leadership theories. Instead, it points out which theories allow reason to play more than a minimal role in ethical decision-making, as well as those that are most consistent with a firm's desire to achieve efficiency in the short run. We explain our view that the way leadership is practiced in large, bureaucratic organizations suggests that ethics is often absent from the leader's decision-making process. Consequently, we suggest that before we engage in a meaningful dialogue about what kind of leaders we might really want in business, we must consider how much short-run profit we are willing to forego in exchange for more ethical corporate cultures. (shrink)

In this article, we focus on the concept of leadership ethics and make observations about transformational, transactional and servant leadership. We consider differences in how each definition of leadership outlines what the leader is supposed to achieve, and how the leader treats people in the organization while striving to achieve the organization's goals. We also consider which leadership styles are likely to be more popular in organizations that strive to maximize short run profits. Our paper does not tout or degrade (...) any of these leadership theories. Instead, it points out which theories allow reason to play more than a minimal role in ethical decision-making, as well as those that are most consistent with a firm's desire to achieve efficiency in the short run. We explain our view that the way leadership is practiced in large, bureaucratic organizations suggests that ethics is often absent from the leader's decision-making process. Consequently, we suggest that before we engage in a meaningful dialogue about what kind of leaders we might really want in business, we must consider how much short-run profit we are willing to forego in exchange for more ethical corporate cultures. (shrink)

As more professors implement critical thinking training in their classrooms, these professors not only must teach the process of critical thinking, but they must also instruct students about how to effectivelyuse their newly acquired skills. Because critical thinking tends to promote reconsideration of strong personal beliefs, students may be resistant to change, resulting in various kinds of emotions. In addition, students who have been trained to in critical thinking may experience resistance from friends and family, leading to greater interpersonal conflict. (...) Therefore, professors should strive for greater sensitivity and understanding, responding to students’ personal needs by teaching them how to effectively and appropriately use their critical thinking skills in various environments. (shrink)

It helps ordinary citizens evaluate their options and their responsibility for global institutional factors, and it challenges social scientists to address the causes of poverty and hunger that act across borders.The present volume ...

Over the past decades, we have witnessed calls for greater transdisciplinary engagement between scientific and societal actors to develop more robust answers to complex societal challenges. Although there seems to be agreement that these approaches might nurture innovations of a new kind, we know little regarding the research practices, their potential, and the limitations. To fill this gap, this article investigates a funding scheme in the area of transdisciplinary sustainability research. It offers a detailed analysis of the imaginaries and expectations (...) on which the funding scheme rests and how researchers actually practice transdisciplinarity within the respective projects. Identifying three ideal typical models of science–society relations at work, attention is paid to how, where, and when societal and scientific arenas get entangled. This article discusses the tensions between classical academic values and efforts to open research to society, the prevailing power structures that make societal participation challenging, the importance of place and technopolitical cultures, and how temporal project structures impede more radical openings to new ways of knowledge production. We finally emphasize that transdisciplinary knowledge production can only become a serious option for addressing societal challenges if broader changes are made to the knowledge regimes in place. (shrink)

Wie sehr unser Alltag auf Konsensen der unterschiedlichsten Art beruht, merkt man immer dann, wenn diese implizit oder explizit aufgekündigt werden. Damit verbunden ist eine Begriffs- und Theoriegeschichte, der sich die Beiträge dieses Bandes aus interdisziplinärer Perspektive widmen. Gegenstand ist der zentrale Beitrag eines vielsprachigen und multikulturellen Jahrtausends, das wir gewöhnlich Mittelalter nennen. Im Mittelpunkt der Begriffsarchäologie in historischer und systematischer Absicht steht der Begriff "consensus", der auch in gegenwärtigen Debatten eine beachtliche Konjunktur besitzt. Ein Konsens beruht auf einer in (...) vernünftiger Rede konstituierten Gemeinsamkeit. Die ihm zugrundeliegende Übereinstimmung ist jedoch von der Art der gut begründeten, anerkannten Meinungen, nicht von der Art der Beweise. Im Unterschied zur Zustimmung aus rein theoretischen Gründen tritt beim consensus zur Einsicht in die Gründe ein Moment willensmäßiger Zustimmung hinzu. Zugespitzt gesagt: Ein Konsens muss auch gewollt sein. Wie aber kommt ein Konsens zustande und was geschieht, wenn er aufgekündigt wird? Der historische Blick zeigt uns wie in einem Laboratorium die zentrale Idee wie auch die Perspektivenvielfalt der Konsensthematik. (shrink)

Generalisations of theory change involving arbitrary sets of wffs instead of belief sets have become known as base change. In one view, a base should be thought of as providing more structure to its generated belief set, and can be used to determine the theory change operation associated with a base change operation. In this paper we extend a proposal along these lines by Meyer et al. We take an infobase as a finite sequence of wffs, with each element (...) in the sequence being seen as an independently obtained bit of information, and define appropriate infobase change operations. The associated theory change operations satisfy the AGM postulates for theory change. Since an infobase change operation produces a new infobase, it allows for iterated infobase change. We measure iterated infobase change against the postulates proposed by Darwiche et al. and Lehmann. (shrink)

Risk is the probability that within a certain time some expected negative event will take place. In medicine risk can be related to a decision or to some intrinsic factors which are associated with the probability of the occurrence of a disease. Decisions can be necessary in the individual life with respect to the question of visiting a physician or performing a certain diagnostic or therapeutic procedure. The introduction of new pharmaceutical or technical products into medical use are another set (...) of decisions which can generate certain risks. Intrinsic or inherent risk factors are a set of variables or signs and symptoms which indicate the presence of a certain probability that some disease or event, e.g., arteriosclerosis or sudden infant death syndrome, may occur. Risk is always related to judgement. In a decision process cost, effectiveness and profit can be used to estimate the magnitude of the risk to be taken. In a similar way the problems in connection with an inherent risk are primarily related to the recognition of the magnitude of risk and to the possibility of prophylactic measures.In our own area of research, the sudden infant death syndrome (SIDS) is an event where only risk factors can be observed. We point at two facts in this context: Highly complex patterns of symptoms like behaviour can better be classified by intuitive Gestalt perception. A medical procedure like induction of labour can itself become a risk factor. (shrink)

The volume brings together a collection of original papers on some of the main tenets of Joseph Raz's legal and political philosophy: Legal positivism and the nature of law, practical reason, authority, the value of equality, incommensurability, harm, group rights, and multiculturalism.

This paper addresses a theory of intergenerational justice that we refer to as “needs-based sufficientarianism”. According to needs-based sufficientarianism, the present generation ought to enable future generations to meet their basic needs — for example, their needs for drinkable water, food and health care. Our aim is to explain and defend this theory in a programmatic way. First, we introduce what we regard as the most plausible variant of needs-based sufficientarianism. Then we argue that this variant is superior to several (...) alternative ways of thinking about intergenerational justice. In particular, we defend basic needs as the currency of intergenerational justice and sufficiency as its principle. Our arguments for these claims are neither fully comprehensive nor fully conclusive. Yet, we hope that they suffice to show that needs-based sufficientarianism is a major contender, with significant pro tanto advantages over other views. (shrink)

We analyze the comparative static effects of changes in the means, the standard deviations and the covariance of asset returns in a standard portfolio selection problem when investors have mean variance preferences. Simple and intuitive characterizations in terms of the elasticity of risk aversion are provided.

ABSTRACTPrior research on attention bias in anxious youth, often utilising a visual dot probe task, has yielded inconsistent findings, which may be due to how bias is assessed and/or variability in the phenomenon. The present study utilises eye gaze tracking to assess attention bias in socially anxious adolescents, and explores several methodological and within-subject factors that may contribute to variability in attention bias. Attention bias to threat was measured in forty-two treatment-seeking adolescents diagnosed with Social Anxiety Disorder. Bias scores toward (...) emotional stimuli and bias scores away from emotional stimuli were explored. Bias scores changed between vigilance and avoidance within individuals and over the course of stimulus presentation. These differences were not associated with participant characteristics nor with self-reported social anxiety symptoms. However, clinician rated severity of social anxiety, explained a signific... (shrink)

The volume brings together a collection of original papers on some of the main tenets of Joseph Raz's legal and political philosophy: Legal positivism and the nature of law, practical reason, authority, the value of equality, incommensurability, harm, group rights, and multiculturalism. James Griffin and Yael Tamir raise questions concerning Raz's notion of group rights and its application to claims of cultural and political autonomy, while Will Kymlicka and Bernhard Peters examine Raz's theory of multicultural society. Lukas Meyer investigates (...) the applicability of the notion of harm in the intergenerational context. Other papers are devoted to fundamental theoretical tenets of Raz's work. Hillel Steiner and Andrei Marmor examine Raz's account of value pluralism and incommensurability in light of what these authors consider to be goods whose equal distribution must be valued for its own sake. Robert Alexy and Timothy Endicott discuss traditional issues of jurisprudence and legal philosphy with special attention to Raz's contribution. Rüdiger Bittner, Bruno Celano, and J. E. Penner discuss and criticize aspects of Raz's theory of practical reason. Jeremy Waldron presents a critique of Raz's interpretation of authority.This volume concludes with a chapter by Joseph Raz in which he responds to arguments in the foregoing essays. (shrink)

Although AGM theory contraction (Alchourrón et al., 1985; Alchourrón and Makinson, 1985) occupies a central position in the literature on belief change, there is one aspect about it that has created a fair amount of controversy. It involves the inclusion of the postulate known as Recovery. As a result, a number of alternatives to AGM theory contraction have been proposed that do not always satisfy the Recovery postulate (Levi, 1991, 1998; Hansson and Olsson, 1995; Fermé, 1998; Fermé and Rodriguez, 1998; (...) Rott and Pagnucco, 1999). In this paper we present a new addition, systematic withdrawal, to the family of withdrawal operations, as they have become known. We define systematic withdrawal semantically, in terms of a set of preorders, and show that it can be characterised by a set of postulates. In a comparison of withdrawal operations we show that AGM contraction, systematic withdrawal and the severe withdrawal of Rott and Pagnucco (1999) are intimately connected by virtue of their definition in terms of sets of preorders. In a future paper it will be shown that this connection can be extended to include the epistemic entrenchment orderings of Gärdenfors (1988) and Gärdenfors and Makinson (1988) and the refined entrenchment orderings of Meyer et al. (2000). (shrink)

Most approaches to iterated belief revision are accompanied by some motivation for the use of the proposed revision operator (or family of operators), and typically encode enough information in the epistemic state of an agent for uniquely determining one-step revision. But in those approaches describing a family of operators there is usually little indication of how to proceed uniquely after the first revision step. In this paper we contribute towards addressing that deficiency by providing a formal framework which goes beyond (...) the first revision step in two ways. First, the framework is obtained by enriching the epistemic state of an agent starting from the following intuitive idea: we associate to each world x two abstract objects x⁺ and x⁻, and we assume that, in addition to preferences over the set of worlds, we are given preferences over this set of objects as well. The latter can be considered as meta-information encoded in the epistemic state which enables us to go beyond the first revision step of the revision operator being applied, and to obtain a unique set of preferences over worlds. We then extend this framework to consider, not only the revision of preferences over worlds, but also the revision of this extended structure itself. We look at some desirable properties for revising the structure and prove the consistency of these properties by giving a concrete operator satisfying all of them. Perhaps more importantly, we show that this framework has strong connections with two other types of constructions in related areas. Firstly, it can be seen as a special case of preference aggregation which opens up the possibility of extending the frame-work presented here into a full-fledged framework for preference aggregation and social choice theory. Secondly, it is related to existing work on the use of interval orderings in a number of different contexts. (shrink)

Traduzione italiana del saggio sulla memoria di Thomas Reid, dai suoi "Saggi sui poteri intellettuali dell'uomo".

We show that every nonzero $\Sigma _{2}^{0}$ enumeration degree bounds a nonsplitting nonzero enumeration degree.

PurposeThe COVID-19 lockdown interrupted normal daily activities, which may have led to an increase in sedentary behavior. The aim of this study was to investigate the effect of the COVID-19 pandemic on the level of physical activity among Swiss office workers.MethodsOffice workers from two Swiss organizations, aged 18–65 years, were included. Baseline data from January 2020 before the COVID-19 pandemic became effective in Switzerland were compared with follow-up data during the lockdown phase in April 2020. Levels of physical activity were (...) assessed using the International Physical Activity Questionnaire. Paired sample t-tests or Wilcoxon signed-rank test were performed for statistical analysis.ResultsData from 76 participants were analyzed. Fifty-four participants were female. The mean age was 42.7 years at baseline. About 75% of the participants met the recommendations on minimal physical activity, both before the COVID-19 pandemic and during the lockdown. Weak statistical evidence for a decline in total physical activity in metabolic equivalent of task minutes per week was found, with no evidence for a decrease in the three types of activity: walking, moderate-intensity activity and vigorous-intensity activity. Across the three categories “high,” “moderate,” and “low” physical activity, 17% of the participants became less active during the lockdown while 29% became more active.ConclusionThe COVID-19 pandemic did not result in a reduction in total physical activity levels among a sample of Swiss office workers during the first weeks of lockdown. Improved work-life balance and working times may have contributed to this finding.Clinical Trial Registrationwww.ClinicalTrials.gov, NCT04169646. Registered 15 November 2019 – Retrospectively registered, https://clinicaltrials.gov/ct2/show/NCT04169646. (shrink)

Tradition, Rationality and Virtue provides the first comprehensive and detailed treatment of the work of Alasdair MacIntyre. In this book, Thomas D'Andrea presents an accessible critical study of the full range of MacIntyre's thought, across ethical theory, psychoanalytic theory, social and political philosophy, Marxist theory, and the philosophy of religion. Moving from the roots of MacIntyre's thought in ethical inquiry, this book examines MacIntyre's treatment of Marx, Christianity, and the nature of human action and discusses in depth the development (...) and applications of MacIntyre's After Virtue project. The book culminates in an examination of major internal and external criticisms of MacIntyre's work and a consideration of its future directions. (shrink)

Andreas Battlogg, S.J., one of the supervising editors, discusses the conclusion of the publication of Karl Rahner's Sämtliche Werke in over thirty volumes along with its impact on the study of theology now and in the future.

Intelligent agents are often faced with the problem of trying to combine possibly conflicting pieces of information obtained from different sources into a coherent view of the world. We propose a framework for the modelling of such combination operations with roots in the work of Spohn [Spo88, Spo91]. We construct a number of combination operations and we measure them against various properties that such operations ought to satisfy. We conclude by discussing the connection between combination operations and the use of (...) infobases [Mey99, MLH00]. (shrink)

Studies report that psychotherapists overestimate their own performance. This study aimed to examine if the self-assessment bias in psychotherapists differs between therapeutic orientations and/or between social comparison groups. Psychotherapists gave subjective estimations of their professional performance compared to two social comparison groups. They further rated the proportion of their patients recovering, improving, not changing, or deteriorating. In total, N = 229 Austrian psychotherapists participated in the online survey. Psychotherapists rated their own performance on average at M = 79.11 relative to (...) “all psychotherapists” vs. at M = 77.76 relative to “psychotherapists with the same therapeutic approach”. This was not significantly different between therapeutic orientations. A significant interaction between social comparison group and therapeutic orientation revealed a drop of self-assessement bias in social comparison group “same approach” vs. “all psychotherapists” in psychodynamic and humanistic therapists. Psychotherapists overestimated the proportion of patients recovering, improving and underestimated the proportion of patients not changing and deteriorating, with no differences between orientations. The self-assessment bias did not differ between therapeutic orientations, but the social comparison group appears to be an important variable. A major drawback is that results have not been connected to patient-reported outcome or objectively rated performance parameters. (shrink)