BackgroundAn editorial expression of concern (EEoC) is issued by editors or publishers to draw attention to potential problems in a publication, without itself constituting a retraction or correction.MethodsWe searched PubMed, PubMed Central (PMC), and Google Scholar to identify EEoCs issued for publications in PubMed and PMC up to 22 August 2016. We also searched the archives of the Retraction Watch blog, some journal and publisher websites, and studies of EEoCs. In addition, we searched for retractions of EEoCs and affected articles (...) in PubMed up to 8 December 2016. We analyzed overall historical trends, as well as reported reasons and subsequent editorial actions related to EEoCs issued between August 2014 and August 2016.ResultsAfter screening 5076 records, we identified 230 EEoCs that affect 300 publications indexed in PubMed, the earliest issued in 1985. Half of the primary EEoCs were issued between 2014 and 2016 (52%). We found evidence of some EEoCs that had been removed by the publisher without leaving a record, and some were not submitted for PubMed or PMC indexing. A minority of publications affected by EEoCs had been retracted by early December 2016 (25%). For the subset of 92 EEoCs issued between August 2014 and August 2016, affecting 99 publications, the rate of retraction was similar (29%). The majority of EEoCs were issued because of concerns with validity of data, methods, or interpretation of the publication (68%), and 31% of cases remained open. Issues with images were raised in 40% of affected publications. Ongoing monitoring after the study identified another 17 EEoCs to year’s end in 2016, increasing the number of EEoCs to 247 and publications in PubMed known to be affected by EEoCs to 320 at the end of 2016.ConclusionsEEoCs have been rare publishing events in the biomedical literature, but their use has been increasing. Most have not led to retractions, and many remain unresolved. Lack of prominence and inconsistencies in management of EEoCs reduce the ability of these notices to alert the scientific community to potentially serious problems in publications. EEoCs will be made identifiable in PubMed in 2017. (shrink)

This collective paper on radicalization and violent extremism part of the ‘Philosophy of education in a new key’ initiative by Educational Philosophy and Theory brings together some of the leading contemporary scholars writing on the most pressing epistemological, ethical, political and educational issues facing post-9/11 scholarship on radicalization and violent extremism. Its overall aim is to move beyond the ‘conventional wisdom’ associated with this area of scholarly research best represented by its many slogans, metaphors and other thought-terminating clichés. By providing (...) conceptual lenses on issues previously compartmentalized primarily [or even exclusively] in security and intelligence studies or at the fringes of scholarly interest, radicalization and violent extremism turn out to be much more complex than ‘radicalization studies’ has been eager to acknowledge. (shrink)

ObjectivesWorking memory is essential for daily life skills like reading comprehension, reasoning, and problem-solving. Healthy aging of the brain goes along with working memory decline that can affect older people’s independence in everyday life. Interventions in the form of cognitive training are a promising tool for delaying age-related working memory decline, yet the underlying structural plasticity of white matter is hardly studied.MethodsWe conducted a longitudinal diffusion tensor imaging study to investigate the effects of an intensive four-week adaptive working memory training (...) on white matter integrity quantified by global and tract-wise mean diffusivity. We compared diffusivity measures of fiber tracts that are associated with working memory of 32 young and 20 older participants that were randomly assigned to a working memory training group or an active control group.ResultsThe behavioral analysis showed an increase in working memory performance after the four-week adaptive working memory training. The neuroanatomical analysis revealed a decrease in mean diffusivity in the working memory training group after the training intervention in the right inferior longitudinal fasciculus for the older adults. There was also a decrease in mean diffusivity in the working memory training group in the right superior longitudinal fasciculus for the older and young participants after the intervention.ConclusionThis study shows that older people can benefit from working memory training by improving their working memory performance that is also reflected in terms of improved white matter integrity in the superior longitudinal fasciculus and the inferior longitudinal fasciculus, where the first is an essential component of the frontoparietal network known to be essential in working memory. (shrink)

We identify two aspects of the problem of maintaining perceptual stability despite an observer's eye movements. The first, visual direction constancy, is the (egocentric) stability of apparent positions of objects in the visual world relative to the perceiver. The second, visual position constancy, is the (exocentric) stability of positions of objects relative to each other. We analyze the constancy of visual direction despite saccadic eye movements.Three information sources have been proposed to enable the visual system to achieve stability: the structure (...) of the visual field, proprioceptive inflow, and a copy of neural efference or outflow to the extraocular muscles. None of these sources by itself provides adequate information to achieve visual direction constancy; present evidence indicates that all three are used.Our final question concerns how information processing operations result in a stable world. The three traditionally suggested means have been elimination, translation, or evaluation. All are rejected. From a review of the physiological and psychological evidence we conclude that no subtraction, compensation, or evaluation need take place. The problem for which these solutions were developed turns out to be a false one. We propose a “calibration” solution: correct spatiotopic positions are calculated anew for each fixation. Inflow, outflow, and retinal sources are used in this calculation: saccadic suppression of displacement bridges the errors between these sources and the actual extent of movement. (shrink)

We apply an online optimization process based on machine learning to the production of Bose-Einstein condensates. BEC is typically created with an exponential evaporation ramp that is optimal for ergodic dynamics with two-body s-wave interactions and no other loss rates, but likely sub-optimal for real experiments. Through repeated machine-controlled scientific experimentation and observations our ’learner’ discovers an optimal evaporation ramp for BEC production. In contrast to previous work, our learner uses a Gaussian process to develop a statistical model of the (...) relationship between the parameters it controls and the quality of the BEC produced. We demonstrate that the Gaussian process machine learner is able to discover a ramp that produces high quality BECs in 10 times fewer iterations than a previously used online optimization technique. Furthermore, we show the internal model developed can be used to determine which parameters are essential in BEC creation and which are unimportant, providing insight into the optimization process of the system. (shrink)

This paper is dedicated to the study of properties of the operations ∪ and ∩ in the upper semilattice of the e-degrees as well as in the interval (c,c') e for any e-degree c.

En règle générale, l’office du juge est réduit aux possibilités techniques offertes au juge par les codes pour exercer sa fonction. Or, l’office du juge est bien plus que cela. Il est l’expression d’un pouvoir autonome d’une force considérable, distinct du pouvoir qui offre au juge sa légitimité. Qu’est-ce qui fonde alors ce pouvoir propre? Il apparaît que ce « mystère », ainsi que l’évoquait Pierre Ayrault au XVI e siècle, se niche au cœur de la dimension liturgique de la (...) forme de procéder. Or, cette théorie de l’office du juge prend un sens particulier aujourd’hui, dans un monde où l’autorité des normes se renverse. (shrink)

La 4ème de couverture indique : "Si le futur a de tout temps inquiété les hommes, le futur du droit, traditionnellement, préoccupe peu les juristes. Ceux-ci se concentrent sur son passé (l'histoire du droit) et son actualité (le "droit positif"). Aujourd'hui, cependant, interroger l'avenir du droit devient de plus en plus nécessaire à mesure que celui-ci ne parvient plus à s'adapter à son environnement - formellement autant que matériellement -, à mesure que le fossé se creuse par rapport aux nouvelles (...) sociétés, économies, cultures, technologies, etc. La situation pourrait d'ailleurs sembler exaltante aux yeux des juristes tant il reste beaucoup de concepts, catégories, méthodes, modèles, principes, techniques légistiques et régimes juridiques à inventer. La faculté d'anticipation est une condition de survie. En droit comme ailleurs, et plus que jamais, il convient de ne pas entrer dans l'avenir à reculons. Plutôt que d'adopter l'attitude du pompier qui réagit à l'événement et tente d'en limiter les conséquences négatives, mieux vaut peut-être épouser la conduite du stratège qui cherche à provoquer les meilleurs changements. C'est pourquoi ce livre interroge la possibilité et l'opportunité d'importer les fins et les moyens de la prospective au sein de la recherche juridique. La prospective juridique est une anticipation scientifique et critique visant à éclairer l'action présente à la lumière des futurs du droit possibles et du futur du droit souhaitable. Par nature, les juristes s'intéressent aux lois en vigueur, aux jurisprudences classiques et aux doctrines bien établies, non au droit prospectif. Mais certains, notamment dans les universités, pourraient étudier le droit à venir et, ce faisant, jouer un rôle d'éclaireurs et de guides, favorisant la capacité d'anticipation et la proactivité de tous les acteurs du droit. La prospective juridique s'affirmerait alors telle une nouvelle branche de la recherche juridique.". (shrink)

La 4ème de couv. indique : "Le pragmatisme, davantage qu'un véritable courant philosophique, est une attitude intellectuelle, un état d'esprit, une approche critique du contenu et des modes de production des connaissances. Il invite à se concentrer sur les actions plutôt que sur les idées, sur les pratiques plutôt que sur les pensées, sur l'expérience, sur l'utilité, sur les conséquences. Or il semble prospérer désormais jusque dans le monde des sciences du droit. Le pragmatisme juridique, attaché à l'effectivité des normes, (...) permettrait mieux que le positivisme juridique moderne, attaché à la validité des normes, d'accepter et d'expliquer les modes de régulation originaux qui émergent au XXIe siècle. L'enjeu, en se détachant de toute forme de dogmatisme, est de permettre au droit scientifique d'accompagner le droit pratique même lorsque ce dernier évolue de plus en plus profondément et de plus en plus fréquemment. C'est pourquoi un nombre croissant de juristes s'intéressent au droit vivant, au droit en action ou au droit en situation et procèdent à des expérimentations, des enquêtes ou des études de cas. Si toutes les branches du droit et toutes les branches de la recherche juridique peuvent être concernées, cela se traduit en particulier dans les travaux relatifs à la gouvernance du cyberespace, à la protection de l'environnement, à la responsabilité sociale des entreprises, à la régulation de la finance ou à l'élaboration des standards techniques. Autant de domaines particulièrement affectés par la mondialisation qui incitent les chercheurs à adopter une approche dynamique et ouverte du droit, par exemple afin d'étudier ses sources réelles plus que ses sources officielles. Tout d'abord, ce livre présente les réponses novatrices que certains scientifiques du droit contemporains apportent aux questions "quel est l'objet de la connaissance juridique et comment l'atteindre?", ces réponses étant souvent empreintes d'un pragmatisme inconscient. Ensuite, il précise et approfondit les pistes ainsi ouvertes en appliquant au droit les propositions des philosophes pragmatistes. L'ambition de cet ouvrage est donc d'affiner le visage du pragmatisme juridique en identifiant les nouvelles orientations théoriques, les nouveaux cadres épistémologiques et les nouveaux outils scientifiques s'y rapportant. Ceux-ci sont peut-être l'avenir de la recherche en droit.". (shrink)

The following two theses constitute the theoretical core of all epistemic conceptions of truth: (1) The concept of truth can be explicated in epistemic terms (e.g. in terms of justified assertability under ideal epistemic conditions, ideal coherence, ideal consensus etc.). (2) The assumption that there could be truths which cannot, in principle, be known to be true is false or even absurd. The book scrutinizes theses (1) and (2). It contains discussions of the truth-theoretical approaches of Peirce, Putnam, Dummett, C. (...) Wright, Apel, Habermas and others, offers an account of the speech act of assertion, a critique of deflationism about truth, an analysis of the concept of fallibility and a discussion of Fitch's paradox of knowability. Im Zentrum epistemischer Wahrheitskonzeptionen stehen die folgenden beiden Thesen: (1) Der Wahrheitsbegriff kann durch epistemische Konzepte idealer Begründbarkeit, Behauptbarkeit, Kohärenz oder Konsensfähigkeit expliziert werden. (2) Die Annahme, es könnte wahre Aussagen geben, die prinzipiell nicht als wahr erkennbar oder doch begründbar sind, ist falsch oder sogar sinnlos. "Wahrheit, Begründbarkeit und Fallibilität" unterzieht diese Thesen einer kritischen Prüfung. Neben der Diskussion wahrheitstheoretischer Ansätze von Peirce, Putnam, Wright, Apel und anderen enthält dieses Buch eine Bestimmung der normativen Relevanz des Wahrheitsbegriffs für Behauptungshandlungen, eine Kritik des Deflationismus, eine Analyse des Konzepts der Fallibilität sowie eine Diskussion des Paradox of Knowability. (shrink)

Qualifiers such as “insofar as” and “in itself” have always been important ingredients in key philosophical claims. Descartes, for instance, famously argues that insofar as he is a thinker, he is not made of matter, and Kant equally famously argues that we cannot know things in themselves. Neither of these claims is meant to be true without qualification. Descartes is not simply denying that humans consist of matter, and Kant is not simply denying that we know things. Therefore, we cannot (...) even begin to understand such claims without knowing how qualifiers work. Unlike the logic of quantification, however, the logic of qualification is rather underexplored. In this paper, I examine several instances of philosophical uses of qualifiers, taken from Aristotle, Avicenna, Descartes, Kant, and 20th c. action theory. In the light of these examples, I discuss several accounts of how such qualifiers work. (shrink)

The dating of Catalepton 9 has been the central issue of scholarship on that poem. The more particular questions of the poem's authorship, the identity of the addressee, and its chronological relation to other texts, both depend on and contribute to ascertaining the date of composition. The clearest exposition of the problem remains that by Richmond. Evidence provided by Catalepton 9 falls into two categories: literary and historical. Literary evidence encompasses two kinds of data: various formal features of the text (...) and intertextual links with other poetry. While the poem's metre, language and style suggest a relatively early date of composition, the close textual parallels with the Eclogues, interpreted as borrowings from rather than sources of Virgil's poetry, point in the opposite direction. Historical indications are likewise ambivalent. On the one hand, it seems likely that the addressee is M. Valerius Messalla Corvinus and, further, that the occasion of composition is his triumph in 27 b.c.. On the other hand, the allusions to his military achievements are both too vague and exaggerated, and, if taken literally, do not fit well our Messalla at any particular point of his career. Richmond, following Birt and followed by Schoonhoven, believed that at least some of the historical references are ‘intended to be prophetic’. More recently, Peirano has attempted to explain this lack of precision by arguing that Catalepton 9 is not a real-life panegyric but a later biographical fiction, the real focus of which ‘is to be found […] in the relationship that the poem constructs between Virgil and his patron’. (shrink)

Les choses de ce monde sont-elles données à la pensée ? Les choses sont-elles supposées être connues, être des manifestations objectives d’un pouvoir conditionné transcendantalement ? La tradition philosophique occidentale, selon François Laruelle, présuppose cette constitution transcendantale du réel. Une présupposition qui exalte la philosophie elle-même en tant que réceptrice désignée du don transcendantal. Dans notre article sur le projet de Laruelle, nous souhaitons montrer que cette présupposition incisive contrôle même des critiques soi-disant radicales de la tradition philosophique, qui ont (...) proliféré à la suite de la pensée de Nietzsche et de Heidegger. C’est pourquoi une critique efficace de la philosophie doit être non-philosophique. Selon Laruelle, elle doit suspendre la présupposition que l’altérité est donnée pour être connue et que la pensée a une structure fondamentalement différente. La non-philosophie commence, non pas avec la différence, ni avec le sujet et l’objet, mais avec la postulation de l’Un. Partant de ce point axiomatique, la non-philosophie prend comme matériau la philosophie repensée selon l’Un. Le projet non-philosophique ne commence pas, comme tant de philosophie post-moderne, en annonçant la fin de la philosophie. Il prend la philosophie comme occasion de poser la question d’une autre sorte de pensée – une sorte qui, au lieu de se rapporter au monde qu’elle présuppose en se différenciant, affirme qu’elle est, en dernière instance, en chair et en os en Un avec ce qu’elle ne peut jamais connaître. (shrink)

ABSTRACTThis paper offers a re-interpretation of the development of practical mathematics in Elizabethan England, placing artisanal know-how and the materials of the discipline at the heart of analysis, and bringing attention to Tudor economic policy by way of historical context. A major new source for the early instrument trade is presented: a manuscript volume of Chancery Court documents c.1565–c.1603, containing details of a patent granting a monopoly on making and selling mathematical instruments, circa 1575, to an unnamed individual, identified here (...) as the instrument maker Humphrey Cole. Drawing on economic and legal history, the paper argues that practical mathematics needs to be understood as one ‘project’ among many, at a time when monopoly patents were used to advance industry, lower unemployment, secure the realm and reward invention. Drawing on the history and sociology of technology, it argues that the management and control of materials – mathematical instruments themselves, and the local socio-legal context within which they could be made – needs to be understood as prior to and separate from the rhetoric of mathematical authors, which is of interest in its own right but which may not have a direct relationship to mathematical practice. (shrink)

The game Gls(κ) is played on a complete Boolean algebra B, by two players. White and Black, in κ-many moves (where κ is an infinite cardinal). At the beginning White chooses a non-zero element p ∈ B. In the α-th move White chooses pα ∈ (0.p)p and Black responds choosing iα ∈ {0.1}. White wins the play iff $\bigwedge _{\beta \in \kappa}\bigvee _{\alpha \geq \beta }p_{\alpha}^{i\alpha}=0$ , where $p_{\alpha}^{0}=p_{\alpha}$ and $p_{\alpha}^{1}=p\ p_{\alpha}$ . The corresponding game theoretic properties of c.B.a.'s are (...) investigated. So. Black has a winning strategy (w.s) if κ ≥ π(B) or if B contains a κ -closed dense subset. On the other hand, if White has a w.s., then κ ∈ [h₂(B). π(B)). The existence of w.s. is characterized in a combinatorial way and in terms of forcing. In particular, if 2κ = κ ∈ Reg and forcing by B preserves the regularity of κ, then White has a w.s. iff the power 2κ is collapsed to κ in some extension. It is shown that, under the GCH, for each set S ⊆ Reg there is a c.B.a. B such that White (respectively. Black) has a w.s. for each infinite cardinal κ ∈ S (resp. κ ∉ S). Also it is shown consistent that for each κ ∈ Reg there is a c.B.a. on which the game Gls(κ) is undetermined. (shrink)

Les relations de la machine et de la pensée sont aussi anciennes qu'énigmatiques, toujours en attente d'une solution. C'est un mythe dont s'abreuve la philosophie. Il est ici repris en fonction de notre conjoncture, la science-fiction avec Matrix, la logique et l'ordinateur avec Turing, enfin l'élaboration théorique avec le cognitivisme et la non-philosophie. Ces essais ont été élaborés dans un même esprit au sein d'une équipe dont les jeunes philosophes partagent le désir commun de renouveler le style philosophique par une (...) discipline de philo-fiction. -/- The relationship between the machine and thought is as old as it is enigmatic, always awaiting a solution. It's a myth that philosophy feeds on. Here it is revisited in the context of our current situation: science fiction with Matrix, logic and the computer with Turing, and theoretical development with cognitivism and non-philosophy. These essays have been drawn up in the same spirit by a team of young philosophers who share a common desire to renew the philosophical style through a discipline of philo-fiction. (shrink)

On savait que c’était l’entité la plus complexe de l’univers connu. Mais le feu d’artifice de découvertes récentes dépasse l’entendement et fait exploser tous les schémas. Votre cerveau est (beaucoup) plus fabuleux que vous le croyez. Il est : totalement élastique, même âgé, handicapé, voire amputé de plusieurs lobes, le système nerveux central peut se reconstituer et repartir à l’assaut des connaissances et de l’action sur le monde ; totalement social, un cerveau n’existe jamais seul, mais toujours en résonance avec (...) d’autres. Mieux : nous sommes neuronalement constitués pour entrer en empathie avec autrui et aller à son secours. Ce livre aborde ces questions passionnantes avec cinq spécialistes. (shrink)

Ernst Mayr argued that the emergence of biology as a special science in the early nineteenth century was possible due to the demise of the mathematical model of science and its insistence on demonstrative knowledge. More recently, John Zammito has claimed that the rise of biology as a special science was due to a distinctive experimental, anti-metaphysical, anti-mathematical, and anti-rationalist strand of thought coming from outside of Germany. In this paper we argue that this narrative neglects the important role played (...) by the mathematical and axiomatic model of science in the emergence of biology as a special science. We show that several major actors involved in the emergence of biology as a science in Germany were working with an axiomatic conception of science that goes back at least to Aristotle and was popular in mid-eighteenth-century German academic circles due to its endorsement by Christian Wolff. More specifically, we show that at least two major contributors to the emergence of biology in Germany—Caspar Friedrich Wolff and Gottfried Reinhold Treviranus—sought to provide a conception of the new science of life that satisfies the criteria of a traditional axiomatic ideal of science. Both C.F. Wolff and Treviranus took over strong commitments to the axiomatic model of science from major philosophers of their time, Christian Wolff and Friedrich Wilhelm Joseph Schelling, respectively. The ideal of biology as an axiomatic science with specific biological fundamental concepts and principles thus played a role in the emergence of biology as a special science. (shrink)

We realize the Jiang-Su algebra, all UHF algebras, and the hyperfinite II1factor as Fraïssé limits of suitable classes of structures. Moreover by means of Fraïssé theory we provide new examples of AF algebras with strong homogeneity properties. As a consequence of our analysis we deduce Ramsey-theoretic results about the class of full-matrix algebras.

We describe approximation algorithms for MAX SAT with performance ratios arbitrarily close to 1, in particular, when performance ratios exceed the limits of polynomial-time approximation. Namely, given a polynomial-time α-approximation algorithm , we construct an -approximation algorithm . The algorithm runs in time of the order ck, where k is the number of clauses in the input formula and c is a constant depending on α. Thus we estimate the cost of improving a performance ratio. Similar constructions for MAX 2SAT (...) and MAX 3SAT are also described. Taking known algorithms as , we obtain particular upper bounds on the running time of. (shrink)

Henry Charlton Bastian's support for spontaneous generation is shown to have developed from his commitment to the new evolutionary science of Darwin, Spencer, Huxley and Tyndall. Tracing Bastian's early career development shows that he was one of the most talented rising young stars among the Darwinians in the 1860s. His argument for a logically necessary link between evolution and spontaneous generation was widely believed among those sympathetic to Darwin's ideas. Spontaneous generation implied materialism to many, however, and it (...) had associations in Britain with radical politics and amateur science. Huxley and the X Club were trying to create a public posture of Darwinism that kept it at arm's length from those negative associations. Thus, the conflict that developed when Huxley and the X Club opposed Bastian was at least as much about factional in-fighting among the Darwinians as it was about the experiments under dispute. Huxley's strategy to defeat Bastian and define his position as "non-Darwinian" contributed significantly to the shaping of Huxley's famous address "Biogenesis and Abiogenesis." Rhetorically separating Darwinism from Bastian was thus responsible for Huxley's first clear public statement that a naturalistic origin of life was compatible with Darwin's ideas, but only in the earth's distant past. The final separation of the discourse on the meaning of Brownian movement and "active molecules" from any possible link with spontaneous generation also grew out of Huxley's strategy to defeat Bastian. Clashes between Bastian and the X Club are described at the BAAS, the Royal Society, and in the pages of "Nature" and other journals. (shrink)

In this article, I explore how the twin forces of imperial and entomological power allowed Britain to shape locust research and control across Africa, the Middle East and South Asia from the 1920s to the early 1950s. Imperial power came from the size of the formal and informal empire, and alliances with other colonial powers to tackle a common threat to agriculture and trade. Entomological authority came primarily from the work of Boris Uvarov and his small team of museum (...) and fieldworkers based at the Imperial Bureau of Entomology (IBE), later the Imperial Institute of Entomology (IIE). I begin by discussing how Uvarov's phase theory of the origin of swarming changed the prospects for the control of locust plagues. The imperial gaze and networks of the IBE and IIE were suited to a problem that was transnational and transcontinental. In the 1930s, Britain was drawn into plans for international cooperation on locust organizations that met the needs of science, to give better sharing of knowledge, and the needs for science, to secure the resources for research and control. However, such organizations were only created during the Second World War, when new plagues threatened military operations, as I show in relation to the measures taken to control the red locust and desert locust. In the final section, I follow the fate of the wartime cooperation in initiatives to establish permanent control organizations. It is a story of the decline of British political power in locust affairs as the United Nations Food and Agriculture Organization and regional agencies took over. My account of British locust research and control reveals a neglected aspect of histories of entomology and imperial/colonial science, especially their international relations and the continuing importance of metropolitan research centres. (shrink)