We propose a new class of multiple contraction operations — the system of spheres-based multiple contractions — which are a generalization of Grove’s system of spheres-based (singleton) contractions to the case of contractions by (possibly non-singleton) sets of sentences. Furthermore, we show that this new class of functions is a subclass of the class of the partial meet multiple contractions.

In this article we present a new class of multiple contraction functionswhich are a generalization of the epistemic entrenchment-based contractions (Grdenfors & Makinson, 1988) to the case of contractions by (possibly nonsingleton) sets of sentences and provide an axiomatic characterization for that class of functions. Moreover, we show that the class of epistemic entrenchment-based multiple contractions coincides with the class of system of spheres-based multiple contractions introduced in Fermé & Reis (2012).

In the logic of theory change, the standard model is AGM, proposed by Alchourrón et al. (J Symb Log 50:510–530, 1985 ). This paper focuses on the extension of AGM that accounts for contractions of a theory by a set of sentences instead of only by a single sentence. Hansson (Theoria 55:114–132, 1989 ), Fuhrmann and Hansson (J Logic Lang Inf 3:39–74, 1994 ) generalized Partial Meet Contraction to the case of contractions by (possibly non-singleton) sets of sentences. In this (...) paper we present the possible worlds semantics for partial meet multiple contractions. (shrink)

In this paper, we propose and axiomatically characterize residual contractions, a new kind of contraction operators for belief bases. We establish that the class of partial meet contractions is a strict subclass of the class of residual contractions. We identify an extra condition that may be added to the definition of residual contractions, which is such that the class of residual contractions that satisfy it coincides with the class of partial meet contractions. We investigate the interrelations in the sense of (...) inclusion among the class of residual contractions and other classes of well known contraction operators for belief bases. (shrink)

In this article we explore multiple change operators, i.e., operators in which the epistemic input is a set of sentences instead of a single sentence. We propose two types of change: prioritized change, in which the input set is fully accepted, and symmetric change, where both the epistemic state and the epistemic input are equally treated. In both kinds of operators we propose a set of postulates and we present different constructions: kernel changes and partial meet changes.

L'histoire de la réception littéraire de l'Utopie de Thomas More au Portugal a été une histoire d'omissions, de censures et de traductions différées qui met en évidence un défaut dans le système culturel portugais. En effet, il est quelque peu ironique qu'une œuvre aussi représentative de la littérature et de la pensée occidentale, historiquement associée à l'ouverture des horizons géographiques du monde, et qui attribue au personnage d'un marin lusitanien, Raphaël Hythlodée, la découverte d'un lieu idéal, n'a été traduite en (...) portugais que dans la seconde moitié du vingtième siècle. Cependant, la première décennie du vingt-et-unième siècle semble annoncer une fortune littéraire plus favorable à l'Utopie de More dans la langue portugaise: non seulement une édition du chef d'œuvre de More a finalement été traduite du latin, mais aussi deux romans ont été publiés en 2004, A lenda de Martim Regos, de Pedro Canais, et Rafael, de Manuel Alegre. Dans le cadre de leurs propres déroulements narratifs, les deux œuvres réaccentuent les traits complexes du personnage du marin portugais et découvreur de l'île idéale. La même réinvention du personnage de Raphaël avait déjà été tentée, en 1998, par José V. de Pina Martins dans son long récit dialogique Utopia III. Dans cet essai, je me concentrerai à la fois sur les sources documentaires liées à la culture portugaise qui sont à la base de l'Utopie de More et sur certains aspects pertinents de la réception du personnage de Raphaël Hythlodée dans les romans susmentionnés. (shrink)

Ce livre est la synthèse de plus de vingt ans de travail de terrain sur les femmes et le féminin dans la société maure mené par l'ethnologue Aline Tauzin. Sa recherche est née d'un étonnement qui fut aussi celui de nombreux visiteurs de l'ethnie maure depuis le Moyen Âge. Alors que cette société « affirme son appartenance à la civilisation arabo-musulmane, qu'elle s'exprime dans un dialecte arabe, elle traite la question du féminin sur un mode radicalement différent de ce qui (...) peut s'ob.. (shrink)

Lo studio si pone due domande sulla dottrina dell'essenzialismo, desunta dalla posizione di Avicenna sull'essenza : 1) come fu possibile per gli autori del Due e Trecento interpretare la dottrina aristotelica dell'essenza come dottrina dell'indifferenza dell'essenza all'individualità e all'universalità; 2) come poterono autori che sostenevano dottrine diverse fra loro appellarsi tutti alla risposta di Avicenna. In questo studio è presa in esame la posizione di Tommaso, soprattutto in quanto nell'evoluzione del suo pensiero non dette alla dottrina dell'indifferenza dell'essenza la medesima (...) interpretazione. La prima parte dello studio è centrata sulla dottrina dell'essenza in Avicenna, elaborata sulla scia della distinzione di Alessandro di Afrodisia tra universale e ciò cui l'universale pertiene. Nella seconda si considera la posizione di Tommaso, prima nel De ente et essentia, poi nel Quodlibet VIII, q. 1 delle Quaestiones de quodlibet, infine nei commenti al De anima e alla Metafisica, e nella Summa contra Gentiles. (shrink)

L’article montre tout d’abord, à travers l’étude de deux corpus de contes et de la gestion de faits récents de transsexualisme, en quoi la musique est constitutive de l’identité féminine dans l’ethnie maure de Mauritanie. La problématique est élargie au champ du religieux de l’aire arabo-musulmane, qui voit dans ce lien une menace pour l’ordre social et symbolique qu’il défend, avant d’être explicitée par le recours à des concepts issus de la psychanalyse. Puis il est question, à travers la description (...) d’un orchestre de musique confrérique uniquement composé de femmes, de l’ébranlement de ce schéma dans le Maroc contemporain, sous l’effet des idées féministes et de la généralisation de pratiques d’égalité entre les sexes. (shrink)

L’idea che vi sia una netta dicotomia tra fatti e valori è uno dei dogmi dell’empirismo. Secondo questa concezione, i giudizi fattuali, in quanto verificabili o falsificabili empiricamente, riguardano le aree di razionalità «pura» e omogenea e sono ancorati naturalisticamente al mondo. Gli enunciati di valore, invece, sarebbero da relegare nella sfera di ciò che è semplicemente «soggettivo», emotivo, irrazionale. Questo assunto, che ha dominato per molto tempo le scienze e la filosofia, è stato messo in dubbio dai pragmatisti e (...) da alcuni dei più influenti pensatori contemporanei, che, intervenendo al dibattito sull’oggettività dell’etica, hanno mostrato come la presunta eterogeneità tra giudizi descrittivi e giudizi valutativi sia ormai insostenibile. Sulla scia della prospettiva inaugurata da questi pensatori, gli autori di questo libro mostrano come la dicotomia fatto/valore abbia corrotto il nostro pensiero, impedendoci di rivolgere l’attenzione alle intersezioni, le sinergie e le relazioni che esistono tra processi cognitivi e coefficienti valutativi, tra scienza e etica. Con saggi di S. Clough, D. Copp, D. Davidson, G. Marchetti, H. Putnam, R. A. Putnam B. Stroud, K. A. Taylor, V. Walsh. (shrink)

Little is known about the consequences of moral distress. The purpose of this study was to identify clinical situations that caused nurses to experience moral distress, to understand the consequences of those situations, and to determine whether nurses would change their practice based on their experiences. The investigation used a descriptive approach. Open-ended surveys were distributed to a convenience sample of 204 critical care nurses employed at a university medical center. The analysis of participants’ responses used an inductive approach and (...) a thematic analysis. Each line of the data was reviewed and coded, and the codes were collapsed into themes. Methodological rigor was established. Forty-nine nurses responded to the survey. The majority of nurses had experienced moral distress, and the majority of situations that caused nurses to experience moral distress were related to end of life. The nurses described negative consequences for themselves, patients, and families. (shrink)

This collection of nine previously unpublished papers is a valuable and important addition to current discussions of free action. Each of the essays deserves, and will no doubt get, careful attention, but those by Donald Davidson, D. C. Dennett and David Pears will probably attract most interest. Davidson suggests that freedom to act be construed as a causal power of the agent, and offers in clarification an analysis of "can" in terms of what the agent will do given desires and (...) beliefs which "rationalize" that action. His discussion throws fresh light on hypothetical, and other, analyses of "can," but Davidson eventually rejects his own suggested analysis, thus leaving obscure the original claim that freedom to act is a causal power. Dennett approaches in a fresh way, based on a distinction between the different stances we might adopt to appropriately functioning entities, the question of the relation between mechanical and rational explanations of behavior. He argues that the two are compatible, and that while certain mechanical explanations may conflict with the ascription of responsibility, this is not always or necessarily the case. Pears argues against the view that explanation in terms of reasons and desires cannot be construed deterministically, concentrating on the issue of whether such explanation presupposes empirical generalizations linking reasons with actions. This complex and often obscure discussion touches on a variety of important topics, among them the difference between production and mere succession, and the extent to which our knowledge of our own reasons is immune from error. (shrink)

Nous tenterons ici d’élucider le sens de la référence quelque peu surprenante de H. G. Gadamer à la doctrine médiévale des transcendantaux à la fin de Vérité et méthode. Le concept d’appartenance signifie pour Gadamer l’insertion de la connaissance dans l’être. Nous soutenons que la thèse fondamentale de Gadamer, l’être susceptible d’être compris est langage, ne signifie pas que l’être soit «soumis» au langage, mais suggère plutôt une certaine intelligibilité de l’être auquel l’homme participe par le biais de la connaissance. (...) Ceci nous reconduit à deux doctrines clés issues de la philosophie médiévale en ce qui concerne le problème de la vérité, soit les transcendantaux et la définition classique de la vérité comme adaequatio rei et intellectus. (shrink)

The Chiasm of the Visible and the Imaginary.Sketches for a Phenomenological Approach to PhotographyIn the digital age today, photographic images appear more and more through a virtual space; their appearance takes place more and more throughan “immaterial medium”. This renders the status of a photographic image more ambiguous, if not more enigmatic. Is a photograph merely a journalistic tool?Is photographic activity primarily mimetic which is meant to fulfill the function of unconcealment of the truth of the given state of things (...) in the world? Or thistruth function can only be fulfilled by the assistance of the viewer’s gaze and the viewing subject’s narrative which is deployed not only according to whatis visible and present, but also according to what is invisible and absent on the surface of the photograph itself? If such is the case, doesn’t a photographalso comprise a hermeneutical and even deconstructive dimension? On the other hand, photography is more and more considered as a kind of artwork inits own right as it can awaken pleasure, imagination and emotion: in short, a photograph is a work which exhibits an affective intentionality. What is therelation between the representational, artistic, affective and critical functions of a photograph? Is there any tension between these functions? This articleattempts to answer some of these problems from a phenomenological approach.Il chiasma del visibile e dell’immaginario.Lineamenti di un approccio fenomenologico alla fotografiaOggi, nell’era digitale, le immagini fotografiche ci vengono incontro sempre più spesso attraverso un medium immateriale. Lo statuto ontologico diun’immagine fotografica diviene così sempre più ambiguo, se non propriamente enigmatico. Una foto è un semplice strumento d’informazione ? L’attivitàfotografi ca è prioritariamente mimetica? La sua funzione principale è quella di rivelare la verità di un certo stato di cose nel mondo? Oppure questa funzionedi veridizione ha bisogno, per realizzarsi, del contributo dello sguardo del soggetto che contempla la fotografia, dell’apporto di un discorso che investe non solo ciò che è visibile e presente, ma anche ciò che è invisibile e assente dalla superficie fotografica? La fotografia, in altri termini, non comporta sempre una dimensione ermeneutica o decostruttiva ? D’altra parte, la fotografia viene sempre più considerata come un’opera d’arte in senso pieno, come un’opera che si fa portatrice di un’intenzionalità affettiva, capace di risvegliare la nostra immaginazione e le nostre emozioni. Quale rapporto sussiste tra le diverse funzioni che una fotografia può svolgere, ad esempio quella rappresentativa, quella artistica, quella affettiva, quella critica? L’articolo cerca di rispondere ad alcuni di questi problemi a partire dall’approccio fenomenologico di Merleau-Ponty. (shrink)

Riassunto Nell’ambito degli studi su Vegezio la datazione dell’Epitoma rei militaris e l’identificazione dell’anonimo imperatore sono questioni lungamente dibattute e approdate a varie soluzioni; Teodosio I ora costituisce la dottrina vulgata. Nessuno ha mai messo in dubbio la pertinenza di Vegezio all’impero romano d’Occidente. Il presente articolo parte dai risultati innovativi di un precedente studio, dove si dimostra che Vegezio scrisse l’Epitoma nell’impero romano d’Oriente intorno al 435 e la dedicò a Teodosio II. Qui l’appartenenza di Vegezio all’impero romano d’Oriente (...) e l’identificazione del destinatario con Teodosio II vengono ulteriormente corroborate, ma si propone una datazione leggermente più alta, più precisamente verso il 425. (shrink)

Le livre de Dragoş Duicu présente l’oeuvre de Patočka comme une phénoménologie du mouvement dont il opère l’archéologie conceptuelle en effectuant un retour à Aristote, ce qui permet aussi de situer Patočka dans le paysage phénoménologique. Il est établi tout au long de l’ouvrage que le mouvement est le sens d’être de l’être, dès lors compris comme physis, et de l’existence elle-même qui est mouvement de part en part, force voyante. Ce qui pour la tradition philosophique échappe au mouvrement est (...) en vérité toujours une extase du mouvement, déposé par lui, et s’avère dès lors secondaire, dérivé, car sédimenté. La philosophie de Patočka se donne donc indissociablement comme une ontologie et une phénoménologie du mouvement, l’auteur proposant un approfondissement cosmologique de la phénoménologie largement étayé sur une théorie de la sédimentation. Le livre offre une interprétation aussi érudite qu’originale de la cosmologie et de l’anthropophénoménologie patočkiennes.The book of Dragoş Duicu, presents the work of Patočka as a phenomenology of movement wherein he operates a conceptual archaeology by returning to Aristotle, and which allows him to situate Patočka in the phenomenological landscape. It is established throughout the work that movement is the meaning of being, therefore understood as physis, and that existence itself is all-around movement, force voyante. That which in the philosophical tradition escapes from movement is always in truth an ecstasy of movement, laid by the movement, which happens to be secondary and derivative, for it is ‘sedimented.’ The philosophy of Patočka presents itself therefore inseparably as an ontology and phenomenology of movement, as the author proposes a cosmological deepening of phenomenology largely supported by a theory of sedimentation. The book offers an interpretation as scholarly as it is original of the Patočkian cosmology and anthropo-phenomenology.Il libro di Dragoş Duicu presenta l’opera di Jan Patočka come una fenomenologia del movimento di cui l’autore svolge un’archeologia concettuale, che risale fino ad Aristotele, e al tempo stesso una ricollocazione all’interno del paesaggio fenomenologico. Il libro è attraversato da un filo rosso: il movimento è il senso d’essere dell’essere, in quanto physis, e dell’esistenza stessa, in quanto movimento anch’essa da cima a fondo, movimento o forza veggente. In questa prospettiva, ciò che per la tradizione filosofica si sottrae al movimento è sempre in verità un’estasi del movimento, depositata dal movimento stesso e proprio perciò secondaria, derivata, sedimentata. La filosofia di Patočka si offre, indissociabilmente, come un’ontologia e come una fenomenologia del movimento, come mostra Duicu sulla base di un approfondimento cosmologico della fenomenologia patockiana largamente incentrato su una teoria della sedimentazione. Il libro offre quindi un’interpretazione tanto erudita quanto originale della cosmologia e dell’antropologia patočkiane. (shrink)

This paper suggests that it should be possible to develop dynamic deontic logic as a counterpart to the very successful development of dynamic doxastic logic (or dynamic epistemic logic, as it is more often called). The ambition, arrived at towards the end of the paper, is to give formal representations of agentive concepts such as “the agent is about to do (has just done) α ” as well as of deontic concepts such as “it is obligatory (permissible, forbidden) for the (...) agent to do α ”, where α stands for an action (event). (shrink)

David Blank presents a new translation into clear modern English of a key treatise by one of the greatest of ancient philosophers, together with the first ever commentary on this work. Sextus Empiricus' Against the Grammarians is a polemical attack on ancient Greek ideas about grammar, and provides one of the best examples of sustained Sceptical reasoning.

The history of the National Health Service research ethics system in the UK and some of the key drivers for its change into the present system are described. It is suggested that the key drivers were the unnecessary delay of research, the complexity of the array of processes and contradictions between research ethics committee (REC) decisions. It is then argued that the primary drivers for this change are and will be replicated by the systems of research ethics review being put (...) in place at UK universities in response to the Economic and Social Research Council research ethics framework. It is argued that this is particularly problematic for multi-centre review and for researchers who switch institutions. Finally, some potential solutions to this problem and their feasibility are discussed. (shrink)