Several logical operators are defined as dual pairs, in different types of logics. Such dual pairs of operators also occur in other algebraic theories, such as mathematical morphology. Based on this observation, this paper proposes to define, at the abstract level of institutions, a pair of abstract dual and logical operators as morphological erosion and dilation. Standard quantifiers and modalities are then derived from these two abstract logical operators. These operators are studied both on sets of states and sets of (...) models. To cope with the lack of explicit set of states in institutions, the proposed abstract logical dual operators are defined in an extension of institutions, the stratified institutions, which take into account the notion of open sentences, whose satisfaction is parametrised by sets of states. A hint on the potential interest of the proposed framework for spatial reasoning is also provided. (shrink)

We present in this paper an abstract categorical logic based on an abstraction of quantifier. More precisely, the proposed logic is abstract because no structural constraints are imposed on models (semantics free). By contrast, formulas are inductively defined from an abstraction both of atomic formulas and of quantifiers. In this sense, the proposed approach differs from other works interested in formalizing the notion of abstract logic and of which the closest to our approach are the institutions, which in addition to (...) be semantics free do not also impose any syntactic contingencies on the structure of formulas. To define the semantical framework in which formulas will be interpreted, we propose to follow the idea from categorical logic which defines the semantical interpretation of formulas from context and as subobjects of an object of a given category. In the spirit of Lawvere’s hyperdoctrines, we use a more abstract notion which generalizes the notion of subobject, standard in category theory: Pitt’s prop-categories. Always in the spirit of categorical logic, we propose a sequent calculus of which we show correctness and completeness for all semantical frameworks defined over any prop-categories. We then study some conditions which allow us to get this completeness result for particular classes of prop-categories. (shrink)

Introduction au numéro spécial "L'articulation de la phénoménologie et de l'herméneutique chez Paul Ricœur".

The Food and Drug Administration authorizes the marketing of a drug only for uses that the manufacturer has demonstrated to be safe and effective, based on evidence from at least two clinical trials. However, the FDA does not regulate the practice of medicine, so physicians may prescribe drugs in any manner they choose. Prescribing drugs in ways that deviate from the uses specified in the FDA-approved drug label, package insert, and marketing authorization is referred to as off-label prescribing. This occurs (...) when physicians prescribe a drug for a therapeutic purpose other than the one approved by the FDA; treat patients in a different age cohort or gender than the population on which it was tested; or prescribe a different dose, for a different duration of use, or a different mode of administration than indicated on the label. (shrink)

La globalisation affecte les sociétés contemporaines en redessinant simultanément l’espace économique global et la configuration des pouvoirs. Elle s’insinue dans notre quotidien à travers la circulation des images et des objets de consommation, une circulation qui ignore la distance et les frontières. On ne s’étonnera pas que les flux culturels et leur impact local aient retenu la curiosité des anthropologues. Ils n’étudient pas seulement la nature de ces flux, mais la manière dont les sociétés s’adaptent ou résistent à cette situation, (...) allant de l’appropriation au rejet. Récusant toute forme d’essentialisme, l’anthropologie prend en considération des processus complexes trop vite amalgamés sous les catégories de multiculturalisme et de diversité culturelle. (shrink)

On a tendance à voir une sorte de hiatus entre la communication politique moderne et les différents aspects du rituel qui ont jusqu'ici prévalu dans les sociétés traditionnelles. Cet article montre que l'apparition de ces nouvelles formes de communication politique n'implique pas mécaniquement la disparition de pratique liées à toute une conception de la vie publique ; loin qu'il y ait réellement antinomie entre le travail rituel et l'utilisation des médias, ceux-ci favorisent l'émergence de nouvelles formes qui combinent les referents (...) anciens et les procédures modernes. La recherche présentée ici résulte d'une enquête sur la vie politique locale dans un département français (l'Yonne) et sur les pratiques symboliques d'hommes politiques d'envergure nationale, tel le président Mitterrand. L'auteur analyse d'un point de vue anthropologique les rituels de consensus et les rituels d'affrontement pratiqués dans notre société. Si les rites d'affrontement sont profondément transformés dans leur forme et leur contenu, les rites consensuels perdurent, et trouvent dans les médias un prolongement, une chambre d'écho. Par ailleurs, de nouveaux rites surgissent qui combinent tradition, dimension religieuse et stratégie de communication. (shrink)

In this paper, we provide a general setting under which results of normalization of proof trees such as, for instance, the logicality result in equational reasoning and the cut-elimination property in sequent or natural deduction calculi, can be unified and generalized. This is achieved by giving simple conditions which are sufficient to ensure that such normalization results hold, and which can be automatically checked since they are syntactical. These conditions are based on basic properties of elementary combinations of inference rules (...) which ensure that the induced global proof tree transformation processes do terminate. (shrink)

The heart of the matter -- The evolution of the French medicine -- Coping with physicians' conflicts of interest in France -- The rise of a protected medical market : the United States before 1950 -- The commercial transformation : the United States, 1950-1980 -- The logic of medical markets : the United States, 1980 to the present -- Coping with physicians' conflicts of interest in the United States -- The evolution of Japanese medicine -- Coping with physicians' conflicts of (...) interest in Japan -- Reforms -- Professionalism reconsidered. (shrink)

Public policy tries to promote appropriate drug use by allowing firms to market drugs in interstate commerce only for uses that the Food and Drug Administration has found to be safe and effective. Because of their medical knowledge, physicians are authorized to prescribe drugs even for uses unapproved by the FDA. Nevertheless, physicians have relied on drug firms for information on appropriate prescribing despite the inherent tension between drug firm dissemination of information to promote sales and rational prescribing. In the (...) past, physicians often relied particularly on drug firm advertising for information on drug use. Today, physicians rely on drug firms to finance continuing medical education. A historical review reveals connections between these two different ways commercial interests have influenced the information that physicians receive and points the way to needed reforms. (shrink)

Two variables are usually recognised as determinants of human causal learning: the contingency between a candidate cause and effect, and the temporal and/or spatial contiguity between them. A common finding is that reductions in temporal contiguity produce concomitant decrements in causal judgement. This finding had previously (Shanks & Dickinson, 1987) been interpreted as evidence that causal induction is based on associative learning processes. Buehner and May (2002, 2003, 2004) have challenged this notion by demonstrating that the impact of temporal delay (...) depends on expectations about the timeframe between cause and effect. A corollary of this knowledge-mediation account is that in certain situations longer delays could facilitate, while shorter delays should impair, causal learning. Here we present two experiments involving a physical apparatus that demonstrate a detrimental effect of contiguity under certain conditions. In contrast to all previous studies, delays universally promoted causal learning. This evidence is clearly at variance with the notion of a bottom-up contiguity bias in causal induction. A new, more general timeframe bias is discussed. (shrink)

This paper outlines the often striking parallels of various approaches to ontic vagueness, as well as their even more striking differences. Though circling around the same idea, some of these approaches were developed to solve quite diverse theoretical problems and encounter different challenges. In addition to these difficulties, the frequently disregarded epistemological problems of all theories of ontic vagueness turn out to be even more serious under critical scrutiny. The same holds for the difficulties of deciding, for every case of (...) vagueness, whether the vagueness involved is semantic or ontic. (shrink)

Post-industrial societies confront common problems in pharmaceutical industry-physician relations. In order to promote sales, drug firms create financial relationships that influence physicians' prescriptions and sometimes even reward physicians for prescribing drugs. Three main types exist: kickbacks, gifts, and financial support for professional activities. The prevalence of these practices has evolved over time in response to changes in professional codes, law, and markets. There are certainly differences among these types of ties, but all of them can compromise physicians' independent judgment and (...) rational prescribing.Drug firms have paid kickbacks for prescribing drugs, purchasing drugs, switching brands prescribed, adding a drug to a hospital formulary, enrolling patients in post-marketing clinical trials, and writing practice guidelines that encourage the use of certain drugs. (shrink)

Der Mensch als „homo viator“ ist ein Topos, der sich in der Literatur und Philosophie, aber auch in diversen religiösen Traditionen unterschiedlicher Epochen finden lässt. Der vorliegende Sammelband konzentriert sich auf die Thematisierung dieses Bildes vom Menschen, der auf dem Wege ist, durch das moderne Existenzdenken.

In order to be able to provide informed, effective and responsive mental health care and to do so in an evidence‐based, collaborative and recovery‐focused way with those who use mental health services, there is a recognition of the need for mental health professionals to possess sophisticated critical thinking capabilities. This article will therefore propose that such capabilities can be productively situated within the context of the work of the French philosopher Michel Foucault, one of the most challenging, innovative and influential (...) thinkers of the 20th century. However, rather than focusing exclusively upon the content of Foucault's work, it will be suggested that it is possible to discern a general methodological approach across that work, a methodological approach that he refers to as “the history of the present.” In doing so, Foucault's history of the present can be understood as a productive, albeit provisional, framework in which to orientate the purpose and process of critical thinking for mental health professionals by emphasizing the need to both historicize and politicize the theoretical perspectives and therapeutic practices that characterize contemporary mental health care. (shrink)

This paper argues that Hutto and Satne’s three-pronged attempt to solve the problem of intentionality – or, at least, to provide an outline of how this problem should be approached – suffers from two shortcomings. First, the idea of Ur-intentionality is problematic. Second, Hutto and Satne have not provided us with a way of getting from Ur-intentionality to content intentionality.

This article explores a training need common to every stage of a teacher’s career : the need to be accompanied. It takes an integrative perspective on the process of the situated learning of teaching, throughout the career, from the pre-service practicums to the period of entrance in the profession then to the in-service training. Providing a reflexive accompaniment of the teachers’ practical experiences is here presented as a central factor for linking the training and the work environments. The first part (...) of the article exposes our conception of a reflexive accompaniment and justifies its importance for the evolution of the teaching practices. Then, we describe how we were convinced of that importance through our role as directors of two teacher training devices, one in Switzerland, one in Quebec. Finally, the third part of the article is devoted to the training of the persons that practice such an accompaniment. (shrink)

Résumé Jacques Serrano conçoit un système d’échange économique structurellement de même nature que sa production artistique non-matérialisée, qui permet de repenser la fonction et le statut de collectionneur. Cette réflexion s’accompagne d’un exemple de mise en application. Marc Halévy éclaire les enjeux économiques de cette proposition, et Ghislain Mollet-Viéville en analyse l’originalité en termes de collection.

We introduce a three-tiered framework for modelling and reasoning about agents who (i) can use possibly complete reasoning systems without any restrictions but who nevertheless are (ii) bounded in the sense that they never reach infinitely many results and, finally, who (iii) perform their reasoning in time. This last aspect does not concern so much the time it takes for agents to actually carry out their reasoning, as the time which can bring about external changes in the agents’ states such (...) as arriving of new information or discarding previously available information due to bounds of the agent’s resources. These three aspects are treated with the maximal possible degree of independence from each other. The treatment of layer (iii) can be combined with arbitrary logic at level (ii) which, in turn, can be combined with arbitrary agent logic at level (i). At the level (iii), we discuss briefly the duality (or rather, complementarity) of system descriptions based on actions and transitions, on the one hand, and states and their changes, on the other. We settle for the latter and present a simple language, for describing state changes, which is parameterized by an arbitrary language for describing properties of the states. The language can be viewed as a simple fragment of step logic, admitting however various extensions by appropriate choices of the underlying logic. Alternatively, it can be seen as a very specific fragment of temporal logic (with a variant of ‘until’ or ‘chop’ operator), and is interpreted over dense linear time. The reasoning system presented here is sound, as well as strongly complete and decidable (provided that so is the parameter logic for reasoning about single states). We give the main idea of the completeness proof and suggest a wide range of possible applications, which is a simple consequence of the parametric character of both the language and the reasoning system. We address then in more detail the case of non-omniscient rational agents, (ii). Their models are syntactic structures (sets of available formulae) similar in spirit, though not in the technical formulation, to the models used in other syntax oriented approaches and in active logic. We give a new sound, complete and decidable system for reasoning about such agents. Finally, we illustrate its extensions with the internal reasoning of agents, (i), by equipping them with some example logics. (shrink)

The occurrence of poor patient care is emerging as one of the most significant, challenging, and critical issues confronting contemporary nursing and those responsible for the provision of health care more generally. Indeed, as a consequence of the increased recognition of the manner in which nurses can be implicated in the occurrence of poor patient care, there has been sustained critical debate that seeks to understand how such healthcare failings can occur and, in particular, why nurses seemingly fail to intervene, (...) raise concerns, and effectively respond to prevent the occurrence and continuation of such poor patient care. In seeking to contribute to this critical discussion, and in contrast to those “situational explanations” that maintain that the failure to raise concerns is a consequence of the contextual factors and challenging conditions to which nurses can be subject in the clinical setting, this paper will provide a resolutely philosophical analysis of that failure. In particular, it will draw upon the work of Jean‐Paul Sartre—the French philosopher generally regarded as one of the most influential thinkers of the twentieth century—in order to propose that his work can be productively recontextualized to provide a detailed, challenging, and provocative critical analysis of the occurrence and continuation of poor patient care and the role of individual nurse practitioners in such healthcare failings. (shrink)

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The physics of color and the psychology of color naming are not isomorphic. Physically, the spectrum is continuous with regard to wavelength colors change qualitatively from one wavelength region to another. The psychological characterization of hue that characterizes color vision has been revealed in a series of modern psychophysical studies with human adults and infants and with various infrahuman species, including vertebrates and invertebrates. These biopsychological data supplant an older psycholinguistic and anthropological literature that posited that language and culture alone (...) influence perceptual processes; language and culture may modify color naming beyond basic categorizations. (shrink)