© 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)

I was first taken to Mr Gurdjieff's flat at a time very different from the present. Paris during the war, under German occupation, was in the grip of the ...

A dual-language edition presenting Descartes's original Latin text of his greatest work, with a facing-page authoritative English translation.

Desde o ano de 1643, Descartes (1596-1650) e a princesa Elizabeth (1618-1680) já trocavam cartas a respeito da geometria, da metafísica e até da física cartesiana. Todavia, no ano de 1645, por conta de um grave estado melancólico da princesa, houve uma intensa correspondência entre ambos. À princípio, o debate se mantinha em torno das condições especificas da princesa. O tema central girava em torno de questões fisiológicas e morais (ou psicofisiológicas). À medida, porém, em que a troca de correspondência (...) se intensificava, o debate ia tornando-se cada vez mais teórico, passando pela discussão da Vida Beata, de Sêneca, até forçar Descartes a apresentar os primeiros esboços de sua própria concepção moral. Dessa troca de correspondência, escolhemos duas cartas de setembro de 1645: uma do filósofo a Elizabeth (carta CDIII) e outra da princesa a Descartes carta (CDVI). (shrink)

How we understand the nature and role of grief depends on what we take its object to be and vice versa. This paper focuses on recent claims by philosophers that grief is frequently or even inherently irrational or inappropriate in one or another respect, all of which hinge on assumptions concerning the proper object of grief. By emphasizing the temporally extended structure of grief, we offer an alternative account of its object that undermines these assumptions and dissolves the apparent problems. (...) The principal object of grief, we suggest, is a loss of life possibilities, which is experienced, understood, and engaged with over a prolonged period. Other descriptions of grief's object identify more specific aspects of this loss in ways that do not respect a straightforward distinction between concrete and formal objects. (shrink)

Recent epistemology has reflected a growing interest in issues about the value of knowledge and the values informing epistemic appraisal. Is knowledge more valuable that merely true belief or even justified true belief? Is truth the central value informing epistemic appraisal or do other values enter the picture? Epistemic Value is a collection of previously unpublished articles on such issues by leading philosophers in the field. It will stimulate discussion of the nature of knowledge and of directions that might be (...) taken by the theory of knowledge. The contributors are Jason Baehr, Michael Brady, Berit Brogaard, Michael DePaul, Pascal Engel, Catherine Elgin, Alvin Goldman, John Greco, Stephen Grimm, Ward Jones, Martin Kusch, Jonathan Kvanvig, Michael Lynch, Erik Olsson, Wayne Riggs and Matthew Weiner. (shrink)

ABSTRACTThis article addresses the question of whether certain experiences that originate in causes other than bereavement are properly termed ‘grief’. To do so, we focus on widespread experiences of grief that have been reported during the Covid-19 pandemic. We consider two potential objections to a more permissive use of the term: grief is, by definition, a response to a death; grief is subject to certain norms that apply only to the case of bereavement. Having shown that these objections are unconvincing, (...) we sketch a positive case for a conception of grief that is not specific to bereavement, by noting some features that grief following bereavement shares with other experiences of loss. (shrink)

Recent epistemology has reflected a growing interest in the social dimension of the subject. This volume presents new work by leading philosophers on a wide range of topics in social epistemology, such as the nature of testimony, the epistemology of disagreement, and the social genealogy of the concept of knowledge.

The mechanistic model depicts scientific explanations as involving the discovery of multi-level, organized components that constitute a target phenomenon. Meanwhile, sensorimotor enactivism purports to offer a scientifically informed account of perceptual experience as a skill-laden interactive relationship, constitutively involving both perceiver and world, rather than as an agent-bound representation of the world. Insofar as sensorimotor enactivism identifies an empirically tractable phenomenon – skillful agent-world interaction – and mechanistic explanation establishes the subpersonal components of this phenomenon, the two approaches allow for (...) a fruitful division of labor in investigating perceptual experience. On closer inspection, however, two challenges arise. First, the “representation challenge” arises because promising attempts to set out implementational details of our sensorimotor interaction with the world implicate cognitive representations, creating tension with sensorimotor enactivism’s nonrepresentational commitments. Second, the “reconstitution challenge” arises when mechanistic explanation not only uncovers the components of some established phenomenon but plays a role in “reconstituting” this phenomenon. This means that, through investigating mechanisms, perceptual experience may be reconceived such that its constituents are wholly organism-bound. We explore both challenges to the compatibility of mechanism and sensorimotor enactivism and examine possible solutions. The result is a clearer understanding of the tensions and opportunities for learning between the frameworks. (shrink)

Recent epistemology has reflected a growing interest in issues about the value of knowledge and the values informing epistemic appraisal. Is knowledge more valuable that merely true belief or even justified true belief? Is truth the central value informing epistemic appraisal or do other values enter the picture? Epistemic Value is a collection of previously unpublished articles on such issues by leading philosophers in the field. It will stimulate discussion of the nature of knowledge and of directions that might be (...) taken by the theory of knowledge. The contributors are Jason Baehr, Michael Brady, Berit Brogaard, Michael DePaul, Pascal Engel, Catherine Elgin, Alvin Goldman, John Greco, Stephen Grimm, Ward Jones, Martin Kusch, Jonathan Kvanvig, Michael Lynch, Erik Olsson, Wayne Riggs and Matthew Weiner. (shrink)

A Egmond, le 16 avril 1648, un peu moins de deux ans avant sa mort, Descartes s'entretient avec un étudiant hollandais en théologie, Frans Burman. Le jeune homme de vingt ans présente au philosophe de courts extraits de ses principales oeuvres publiées (Méditations métaphysiques, Principes de la philosophie, Discours de la méthode) que l'auteur en personne se charge d'expliquer, répondant aussi aux objections de son interlocuteur. Ce texte possède donc un statut décisif dans le corpus cartésien car il s'agit d'un (...) commentaire des points les plus délicats de la philosophie de Descartes par lui-même. Ce faisant, il ne se contente pas de répéter ce qu'il a déjà écrit sur le doute, la connaissance sensible, l'existence de Dieu, le mouvement de la matière ou encore la santé du corps, il ne cesse au contraire d'approfondir, de nuancer, voire de transformer les thèses sur lesquelles il est interrogé. Ce texte interdit ainsi de faire de la pensée de Descartes une "doctrine" stable et immuable. Il donne plutôt à voir de manière éclatante une pensée en marche, celle d'un philosophe majeur et reconnu qui accepte pourtant de remettre sur la table de travail les points essentiels d'une oeuvre déjà constituée en fonction des questions précises qui lui sont posées. Bien plus qu'un simple résumé de sa philosophie, cet Entretien montre l'inlassable exigence de l'effort de la pensée cartésienne à la conquête de sa propre clarté. (shrink)

This study evaluated the integration of psychology ethics into an introductory psychology course. Students in two general psychology sections were exposed to an infusion of psychology ethics in teaching, research, and clinical practice, whereas students in two sections were exposed to traditional course content. Students completed a pre and post-test assessment including a psychology ethics questionnaire and open-ended responses to three ethics case studies. Students in the ethics group displayed a statistically significant increase in scores on both measures from pre (...) to post-test. However, students in the traditional group showed no improvement in scores. (shrink)

Ownership rights influence thought and behavior in relation to the physical world and in relation to other people. We review recent research examining the nature of ownership rights, and how young children and adults conceive of them. This research examines issues such as the rights ownership is assumed to confer; whether ownership rights reflect principles specific to ownership or instead depend on more general moral principles; and whether ownership rights are inventions of law and culture, or whether they have a (...) more natural basis. (shrink)

Recently two developments have had a major impact on the field of ancient DNA (aDNA). First, new advances in DNA sequencing, in combination with improved capture/enrichment methods, have resulted in the recovery of orders of magnitude more DNA sequence data from ancient animals. Second, there has been an increase in the range of tissue types employed in aDNA. Hair in particular has proven to be very successful as a source of DNA because of its low levels of contamination and high (...) level of ancient endogenous DNA. These developments have resulted in significant advances in our understanding of recently extinct animals: namely their evolutionary relationships, physiology, and even behaviour. Hair has been used to recover the first complete ancient nuclear genome, that of the extinct woolly mammoth, which then facilitated the expression and functional analysis of haemoglobins. Finally, we speculate on the consequences of these developments for the possibility of recreating extinct animals. (shrink)

Law-enforcement agencies are increasingly able to leverage crime statistics to make risk predictions for particular individuals, employing a form of inference that some condemn as violating the right to be “treated as an individual.” I suggest that the right encodes agents’ entitlement to a fair distribution of the burdens and benefits of the rule of law. Rather than precluding statistical prediction, it requires that citizens be able to anticipate which variables will be used as predictors and act intentionally to avoid (...) them. Furthermore, it condemns reliance on various indexes of distributive injustice, or unchosen properties, as evidence of law-breaking. (shrink)

Presentation times of study words presented in the Deese/Roediger and McDermott (DRM) paradigm varied from 20 to 2000 ms per word in an attempt to replicate the false memory effect following extremely short presentations reported by . Both in a within-subjects design (Experiment 1) and in a between-subjects design (Experiment 2) subjects showed memory for studied words as well as a false memory effect for related critical lures in the 2000-ms condition. However, in the conditions with shorter presentation times (20 (...) ms in Experiment 1; 20 and 40 ms in Experiment 2) no memory for studied words, nor a false memory effect was found. We argue that there is at present no strong evidence supporting the claim for a nonconscious basis of the false memory effect. (shrink)

Articles in the popular media and testimonies collected in empirical work suggest that many people who have not been bereaved have nevertheless grieved over pandemic-related losses of various kinds. There is a philosophical question about whether any experience of a non-death loss ought to count as grief, hinging upon how the object of grief is construed. However, even if one accepts that certain significant non-death losses are possible targets of grief, many reported cases of putative pandemic-related grief may appear less (...) plausible. For instance, it might be argued that many of these losses are temporary or minor and therefore unlikely to be grieved, and that the associated experiences are phenomenologically dissimilar to grief. In this article, as well as discussing the more general question about the coherence of the idea of non-bereavement grief, we address these obstacles to taking reports of pandemic non-bereavement grief to be literal and true. In particular, we argue that some may have experienced grief over even apparently minor losses during the pandemic. This is generally so, we suggest, only insofar as experiences of such losses form part of an overarching grief process directed at some broader significant loss. Thus, we cast light on both the nature of non-bereavement grief and the kinds of disruption and loss experienced during the pandemic. (shrink)

This is the first book in which contemporary scientists and mystics share with us-in their own words-their views on space, time, matter, energy, life, consciousness, creation and on our place in the scheme of things. The book is also the story of an American philosopher who-with these dialogues-ventures into ground-breaking territory, and of her search in America, Europe, India and Nepal for people whose work is at the center of our understanding of reality.

The essays in this volume investigate the norms of reason--the standards which contribute to determining whether beliefs, inferences, and actions are rational. Nine philosophers and two psychologists discuss what kinds of things these norms are, how they can be situated within the natural world, and what role they play in the psychological explanation of belief and action. Current work in the theory of rationality is subject to very diverse influences ranging from experimental and theoretical psychology, through philosophy of logic and (...) language, to metaethics and the theory of practical reasoning; this range is well represented here. (shrink)

An explanation is given of why it is in the nature of inquiry into whether or not p that its aim is fully achieved only if one comes to know that p or to know that not-p and, further, comes to know how one knows, either way. In the absence of the latter one is in no position to take the inquiry to be successfully completed or to vouch for the truth of the matter in hand. An upshot is that (...) although knowledge matters because truth matters this should not be understood to mean that knowledge matters because true belief matters. (shrink)

Theory of Literature was originally published in 1949. It is not a textbook introducing the young to the elements of literary appreciation nor a survey of the techniques employed in scholarly research. The authors have sought to unite "poetics" (or literary theory) and "criticism" (evaluation of literature) with "scholarship" ("research") and "literary history" (the "dynamics"of literature, in contrast to the "statics" of theory and criticism).