© 2017. The American Astronomical Society. All rights reserved.We present new observations of the low-mass companion to HD 984 taken with the Gemini Planet Imager as a part of the GPI Exoplanet Survey campaign. Images of HD 984 B were obtained in the J and H bands. Combined with archival epochs from 2012 and 2014, we fit the first orbit to the companion to find an 18 au orbit with a 68% confidence interval between 14 and 28 au, an eccentricity (...) of 0.18 with a 68% confidence interval between 0.05 and 0.47, and an inclination of 119°with a 68% confidence interval between 114°and 125°. To address the considerable spectral covariance in both spectra, we present a method of splitting the spectra into low and high frequencies to analyze the spectral structure at different spatial frequencies with the proper spectral noise correlation. Using the split spectra, we compare them to known spectral types using field brown dwarf and low-mass star spectra and find a best-fit match of a field gravity M6.5 ±1.5 spectral type with a corresponding temperature of K. Photometry of the companion yields a luminosity of log=2.88 ± 0.07 dex with DUSTY models. Mass estimates, again from DUSTY models, find an age-dependent mass of 34 ±1 to 95 ±4 M Jup. These results are consistent with previous measurements of the object. (shrink)

Département de théologie, Université Paul-Verlaine, Metz Cette présentation des travaux et publications d’Y. Ledure en retient deux pôles. Le premier, philosophique, centré sur Nietzsche, se montre attentif aux tendances de la modernité, à une légitime réhabilitation du corps, qui ne saurait faire l’impasse sur la mort, à l’égalité des droits, compromise par la volonté de puissance et le pulsionnel. Le second pôle est centré sur l’engagement et la spiritualité du P. Dehon, fondateur des prêtr..

Du rural à l'urbain est un livre précieux : il rassemble autour d'une problématique qui nous concerne encore aujourd'hui (comment surgit l'urbain? sa problématique? comment en faire la théorie?) les grandes étapes de la pensée de Henri Lefebvre (1901-1991), l'un des plus grands penseurs du XXe siècle. " C'est un marxiste, Henri Lefebvre, qui a donné une méthode à mon avis simple et irréprochable pour intégrer la sociologie et l'histoire dans la perspective de la dialectique matérialiste. Cette méthode, nous la (...) croyons valable dans tous les domaines de l'anthropologie. " Jean-Paul Sartre, Questions de méthode. Dans Du rural à l'urbain, " gît un petit trésor, l'article sur la méthode qu'Henri Lefebvre a théorisée à partir de son travail sur la vallée de Campan et qui porte désormais classiquement le nom de méthode régressive-progressive " René Lourau, préface à la seconde édition de Pyrénées (Pau, Cairn, 2000). (shrink)

Hannah Arendt a un problème avec la philosophie. Si elle en joue et provoque, le trait s’avère constant, tout au long de sa vie, publique comme privée. Jamais elle ne cacha son peu d’appétence pour les « diseur[s] professionnel[s] de vérité »1. Elle poussa même le vice jusqu’à déclarer, en réponse à Günther Gauss qui, lors d’une célèbre entrevue datant de 1964 et tel le frais cabri qui, avec candeur et bonheur, se dirige guilleret, primesautier, vers la surprise party que (...) donne le loup en son... (shrink)

Considering the urgency of addressing grand challenges that affect human health and achieving the ambitious health targets set by the United Nations’ Sustainable Development Goals, the role of business in improving health has become critical. Yet, our systematic review of the business–health literature reveals that business research focuses primarily on occupational health and safety, health care organizations, and health regulations. To embrace the health externalities generated by business activities, we propose that future research should investigate the conditions under which business (...) articulates and participates in health challenges, engages in multilevel actions toward tackling health challenges, and improves health outcomes and its impact on the health of external stakeholders, including customers and local communities. We also urge business scholars to engage with the public health research community to increase impact. (shrink)

Rémi Tison Dans cet article, je traite de la nature des processus cognitifs sous-tendant nos attributions d’états mentaux aux animaux non humains. Selon la conception traditionnelle, nous n’avons qu’un accès indirect aux états mentaux d’autrui, qui doivent être inférés sur la base du comportement. Cette conception traditionnelle influence autant les débats conceptuels concernant l’esprit des animaux que les recherches empiriques sur la cognition animale. Or de récents travaux sur la cognition sociale humaine avancent plutôt une conception « interactionniste », selon (...) laquelle les états mentaux peuvent parfois être directement perçus dans le comportement. J’applique dans cet article la conception interactionniste à l’attribution d’états mentaux aux animaux. Je conclus que celle-ci rend mieux compte des attitudes du sens commun à l’égard des états mentaux des animaux et est plus féconde pour la recherche empirique sur la cognition animale que la conception traditionnelle. (shrink)

We argue that thought insertion primarily involves a disruption of the sense of ownership for thoughts and that the lack of a sense of agency is but a consequence of this disruption. We defend the hypothesis that this disruption of the sense of ownership stems from a fail- ure in the online integration of the contextual information related to a thought, in partic- ular contextual information concerning the different causal factors that may be implicated in their production. Loss of unity (...) of consciousness, manifested by incoherent subjective experiences is a general phenomenal characteristic of schizophrenia. This loss of coherence has been hypothesized to reflect a generalized deficit of contextual information integration not conveyed by, but related to, a target event. This deficit is manifested across many cog- nitive domains. We argue that it is also manifested in the process of thinking itself, result- ing in causally decontextualized thoughts that are experienced as inserted thoughts. (shrink)

In this paper, I develop an account of linguistic content based on the active inference framework. While ecological and enactive theorists have rightly rejected the notion of content as a basis for cognitive processes, they must recognize the important role that it plays in the social regulation of linguistic interaction. According to an influential theory in philosophy of language, normative inferentialism, an utterance has the content that it has in virtue of its normative status, that is, in virtue of the (...) set of commitments and entitlements that the speaker undertakes by producing this utterance. This normative status is determined by the normative attitudes shared by members of the utterer’s linguistic community. I propose here an account of such normative attitudes based on the ecological interpretation of the active inference framework. I explain how social normativity can be understood in that framework as the way in which members of a group shape their social niche to make it more predictable. Finally, I apply this account of social normativity to basic communicative practices, thereby explaining how social normative expectations can emerge to regulate these communicative practices, eventually leading to the institution of the sort of normative statuses constitutive of linguistic content. (shrink)

Since their emergence in the 1980s, environmental virtue ethics (EVEs) have aimed to provide an alternative to deontological and consequentialist approaches for guiding ecological actions in the context of the global environmental crisis. The deterioration of the ecological situation and the challenges in addressing collective action problems caused by global changes have heightened interest in these ethics. They offer a framework for meaningful individual actions independently of the commitment of other actors. However, by shifting the focus onto individuals, EVEs appear (...) to grapple with the tension between anthropocentrism and respect for nature, as well as between self-flourishing and concern for other living beings. This article argues that this difficulty is rooted in the neglect within EVEs of the communitarian aspect of ancient virtue ethics. Drawing from Baird Callicott’s ecocentric approach and Val Plumwood’s works, this paper explores the possibility of conceiving ecological communities as collective frameworks in which both public and private virtues are defined and practiced. (shrink)

Noam Chomsky and Frances Egan argue that David Marr’s computational theory of vision is not intentional, claiming that the formal scientific theory does not include description of visual content. They also argue that the theory is internalist in the sense of not describing things physically external to the perceiver. They argue that these claims hold for computational theories of vision in general. Beyond theories of vision, they argue that representational content does not figure as a topic within formal computational theories (...) in cognitive science. I demonstrate that Chomsky’s and Egan’s claims about Marr’s theory are false. Marr’s computational theory contains a mathematical theory of visual content, based on empirical psychophysical evidence. It also contains mathematical descriptions of distal physical surfaces and objects, and of their optic projection to the perceiver. Much computational research on vision contains these types of intentional and externalist components within the formal, mathematical, theories. Chomsky’s and Egan’s claims demonstrate inadequate study and understanding of Marr’s work and other research in this area. Computational theories of vision, by containing empirically based mathematical theories of visual content, to this extent present naturalizations of semantics. (shrink)

In this paper, we propose an argumentation formalism that allows for both deductive and abductive argumentation, where ‘deduction’ is used as an umbrella term for both defeasible and strict ‘forward’ inference. Our formalism is based on an extended version of our previously proposed information graph formalism, which provides a precise account of the interplay between deductive and abductive inference and causal and evidential information. In the current version, we consider additional types of information such as abstractions which allow domain experts (...) to be more expressive in stating their knowledge, where we identify and impose constraints on the types of inferences that may be performed with the different types of information. A new notion of attack is defined that captures a crucial aspect of abductive reasoning, namely that of competition between abductively inferred alternative explanations. Our argumentation formalism generates an abstract argumentation framework and thus allows arguments to be formally evaluated. We prove that instantiations of our argumentation formalism satisfy key rationality postulates. (shrink)

Consumer-based datasets are the products of data brokerage firms that agglomerate millions of personal records on the adult US population. This big data commodity is purchased by both companies and individual clients for purposes such as marketing, risk prevention, and identity searches. The sheer magnitude and population coverage of available consumer-based datasets and the opacity of the business practices that create these datasets pose emergent ethical challenges within the computational social sciences that have begun to incorporate consumer-based datasets into empirical (...) research. To directly engage with the core ethical debates around the use of consumer-based datasets within social science research, I first consider two case study applications of consumer-based dataset-based scholarship. I then focus on three primary ethical dilemmas within consumer-based datasets regarding human subject research, participant privacy, and informed consent in conversation with the principles of the seminal Belmont Report. (shrink)

We present and contrast two accounts of cooperative communication, both based on Active Inference, a framework that unifies biological and cognitive processes. The mental alignment account, defended in Vasil et al., takes the function of cooperative communication to be the alignment of the interlocutor's mental states, and cooperative communicative behavior to be driven by an evolutionarily selected adaptive prior belief favoring the selection of action policies that promote such an alignment. We argue that the mental alignment account should be rejected (...) because it neglects the action-oriented nature of cooperative communication, which skews its view of the dynamics of communicative interaction. We introduce our own conception of cooperative communication, inspired by a more radical ecological interpretation of the active inference framework. Cooperative communication, on our ecological conception, serves to guide and constrain the dynamics of the cooperative interaction via the construction and restructuring of shared fields of affordances, in order to reach the local goals of the joint actions in which episodes of cooperative communication are embedded. We argue that our ecological conception provides a better theoretical standpoint to account for the action-oriented nature of cooperative communication in the active inference framework. (shrink)

We show that MRP + MA implies that ITP(λ, ω 2 ) holds for all cardinal λ ≥ ω 2 . This generalizes a result by Weiß who showed that PFA implies that ITP(λ, ω 2 ) holds for all cardinal λ ≥ ω 2 . Consequently any of the known methods to prove MRP + MA consistent relative to some large cardinal hypothesis requires the existence of a strongly compact cardinal. Moreover if one wants to force MRP + MA (...) with a proper forcing, it requires at least a supercompact cardinal. We also study the relationship between MRP and some weak versions of square. We show that MRP implies the failure of □(λ, ω) for all λ ≥ ω 2 and we give a direct proof that MRP + MA implies the failure of □(λ, ω 1 ) for all λ ≥ ω 2. (shrink)

La Metaphysique d'Aristote culmine dans le livre Lambda (XII). Il resume les livres precedents, puis se lance dans une fantastique description de Dieu, Premier moteur immobile de l'univers et Penser se pensant soi-meme. Le premier a nous en avoir laisse un commentaire est Themistius, au IVe siecle. Entre lui et l'epoque d'Averroes, d'Albert le Grand, de Thomas d'Aquin, rien ne nous est reste sur Lambda. Themistius paraphrase le texte et y mele de tres importantes digressions. L'original grec est perdu. De (...) la traduction arabe, nous n'avons que des fragments. Mais elle avait ete integralement traduite en hebreu. C'est a partir de ces deux sources que Remi Brague propose ici une traduction litterale, avec une introduction et des notes explicatives. (shrink)

The philosophy of emotion has long been divided over the cognitive nature of emotion. In this paper I argue that this debate suffers from deep confusion over the meaning of “cognition” itself. This confusion has in turn obscured critical substantive agreement between the debate’s principal opponents. Capturing this agreement and remedying this confusion requires re-conceptualizing “the cognitive” as it functions in first-order theories of emotion. Correspondingly, a sketch for a new account of cognitivity is offered. However, I also argue that (...) this new account, despite tacit acceptance by all major theories of emotion, in fact rules out some of the most fundamental and controversial claims of one side of the nature-of-emotion debate, emotional cognitivism. (shrink)

In everything from philosophical ethics to legal argument to public activism, it has become commonplace to appeal to the idea of human dignity. In such contexts, the concept of dignity typically signifies something like the fundamental moral status belonging to all humans. Remarkably, however, it is only in the last century that this meaning of the term has become standardized. Before this, dignity was instead a concept associated with social status. Unfortunately, this transformation remains something of a mystery in existing (...) scholarship. Exactly when and why did "dignity" change its meaning? And before this change, was it truly the case that we lacked a conception of human worth akin to the one that "dignity" now represents? In this volume, leading scholars across a range of disciplines attempt to answer such questions by clarifying the presently murky history of "dignity," from classical Greek thought through the Middle Ages and Enlightenment to the present day. (shrink)

Where exactly should we place Adam Smith in the cannon of classical liberalism? Smith's advocacy of free market economics and defence of religious liberty in The Wealth of Nations suffice for including him somewhere in that tradition.1 The nature and extent of Smith's liberalism, however, remain up for debate. One recent trend has been to characterise Smith as a proponent of social liberalism. This includes those like Stephen Darwall, Samuel Fleischacker and Charles Griswold, who have drawn attention to a kind (...) of descriptive moral egalitarianism in Smith.2 Humans, Smith seems to hold, are naturally disposed to valuing one another under a conception of equality. But that is not all these scholars suggest. They have also hinted at something more contentious ? the idea that, according to Smith, we value one another in a way resonant with contemporary notions of human dignity, conceived as the inherent value of persons grounding certain rights to, or restrictions on, treatment by others.3 In saying so, these scholars have hit upon something remarkable. However, I also think their arguments in this respect are both indirect and incomplete. Consequently, the full import of Smith's view remains obscure. This essay aims to bring some clarity. 1I intend this historically. I grant there are good reasons to be sceptical about the ultimate fate of liberty in capitalist society (e.g. Marxist reasons and reasons based on various postmodern critiques of enlightenment ideology). Also, the designation ?free market? should be understood loosely, as most scholars now agree it is a mistake to identify Smith with thoroughgoing laissez-faire economics. 2Darwall, S., ?Sympathetic Liberalism: Recent Work on Adam Smith?, Philosophy Fleischacker, S., A Third Concept of Liberty (Princeton: Princeton University Press, 1999) and On Adam Smith's Wealth of Nations (Princeton: Princeton University Press, 2004); and Griswold, C., Adam Smith and the Virtues of Enlightenment (New York: Cambridge University Press, 1999). Other major commentators holding some version of this view might include Raphael, D. D. The Impartial Spectator (New York: Oxford University Press, 2007) and Vivienne Brown, Adam Smith's Discourse: Canonicity, Commerce and Conscience (London: Routledge, 1994). 3See e.g. Fleischacker (2004), 205; Darwall at 142, 156 and Griswold at 235?239. However, one must read Fleischacker carefully, for he also uses the adjectival ?dignified? to express Smith's concern with what is ?honourable? or ?respectable? about persons, which use does not obviously match up with the notion of inherent value (see e.g. p. 207). Darwall's argument includes by far the most explicit discussion of ?dignity? as I've defined it. But as Darwall's article is ostensibly a book review (albeit a substantive one that addresses three books at once, including Griswold's), it cannot be called a direct inquiry. Griswold never explicitly puts his interpretation in terms of ?dignity?, but that is clearly what he is after. Thus Darwall also reads him that way. (shrink)

We are witnessing increasing use of the Internet, particular social media, to criticize (perceived or actual) moral failings and misdemeanors. This phenomenon of so-called ‘online public shaming’ could provide a powerful tool for reinforcing valuable social norms. But it also threatens unwarranted and severe punishments meted out by online mobs. This paper analyses the dangers associated with the informal enforcement of norms, drawing on Locke, but also highlights its promise, drawing on recent discussions of social norms. We then consider two (...) crucial conditions that online public shaming must meet in order to be justifiable: proportionality and accountability. We argue that these requirements are in fact frequently violated, rendering most cases of online public shaming unjustified. While the use of online public shaming against others’ vices has some apparent virtues, it is currently rarely justified, given its own vices. (shrink)

How should we make choices when we know so little about our futures? L. A. Paul argues that we must view life decisions as choices to make discoveries about the nature of experience. Her account of transformative experience holds that part of the value of living authentically is to experience our lives and preferences in whatever ways they evolve.

This paper examines the question of why consumers engage in ethical consumption. The authors draw on self-affirmation theory to propose that the choice of an ethical product serves a self-restorative function. Four experiments provide support for this assertion: a self-threat increases consumers’ choice of an ethical option, even when the alternative choice is objectively superior in quantity (Study 1) and product quality (Study 2). Further, restoring self-esteem through positive feedback eliminates this increase in ethical choice (Studies 2 and 3). As (...) an additional test of the robustness of our results, a final study examined the effect of self-threat on choice in a field setting (Study 4). The findings indicate that ethical purchases are not just altruistic. They hold purposeful individual value and can help in the self-restorative process. Implications for managers making decisions regarding investment in ethical product features are discussed. (shrink)

In this paper, we introduce an ecological account of communication according to which acts of communication are active inferences achieved by affecting the behavior of a target organism via the modification of its field of affordances. Constraining a target organism’s behavior constitutes a mechanism of socially extended active inference, allowing organisms to proactively regulate their inner states through the behavior of other organisms. In this general conception of communication, the type of cooperative communication characteristic of human communicative interaction is a (...) way of constraining interaction dynamics toward the goals of a given joint action by constructing and altering shared fields of affordances. This account embraces a pragmatist view according to which communication is a form of action aiming to influence the behavior of a target, and stands against the traditional transmission view according to which communication fundamentally serves to convey information. Understanding acts of communication as active inference under an ecological interpretation allows us to link communicative and ultimately linguistic behavior to the biological imperative of minimizing free energy and to emphasize the action-oriented nature of communicative interaction. (shrink)