In this paper, chaotic dynamics of a mixed Rayleigh–Liénard oscillator driven by parametric periodic damping and external excitations is investigated analytically and numerically. The equilibrium points and their stability evolutions are analytically analyzed, and the transitions of dynamical behaviors are explored in detail. Furthermore, from the Melnikov method, the analytical criterion for the appearance of the homoclinic chaos is derived. Analytical prediction is tested against numerical simulations based on the basin of attraction of initial conditions. As a result, it is (...) found that for ω = ν, the chaotic region decreases and disappears when the amplitude of the parametric periodic damping excitation increases. Moreover, increasing of F 1 and F 0 provokes an erosion of the basin of attraction and a modification of the geometrical shape of the chaotic attractors. For ω ≠ ν and η = 0.8, the fractality of the basin of attraction increases as the amplitude of the external periodic excitation and constant term increase. Bifurcation structures of our system are performed through the fourth-order Runge–Kutta ode 45 algorithm. It is found that the system displays a remarkable route to chaos. It is also found that the system exhibits monostable and bistable oscillations as well as the phenomenon of coexistence of attractors. (shrink)

Iconic gesture-speech integration is a relatively recent field of investigation with numerous researchers studying its various aspects. The results obtained are just as diverse. The definition of iconic gestures is often overlooked in the interpretations of results. Furthermore, while most behavioral studies have demonstrated an advantage of bimodal presentation, brain activity studies show a diversity of results regarding the brain regions involved in the processing of this integration. Clinical studies also yield mixed results, some suggesting parallel processing channels, others a (...) unique and integrated channel. This review aims to draw attention to the methodological variations in research on iconic gesture-speech integration and how they impact conclusions regarding the underlying phenomena. It will also attempt to draw together the findings from other relevant research and suggest potential areas for further investigation in order to better understand processes at play during speech integration process. (shrink)

Letter-position tolerance varies across languages. This observation suggests that the neural code for letter strings may also be subtly different. Although language-specific models remain useful, we should endeavor to develop a universal model of reading acquisition which incorporates crucial neurobiological constraints. Such a model, through a progressive internalization of phonological and lexical regularities, could perhaps converge onto the language-specific properties outlined by Frost.

Cognitive forms vary considerably as a human being detaches herself from what is closest and most personal and moves to communicate — in the broad sense of taking part in a common matter — across increasing relational distances. The article proposes to deal with the variety of cognitive formats which cannot `commonize' cognition to an equal degree, relating them to a set of regimes of engagement with the world that are identified in terms of the dependency between the human agent (...) and her environment. The good that engagement aims to guarantee orients how reality is grasped and specifies the format of what constitutes relevant information. This analysis offers new insight into the composition of communities as well as persons who have to cope with the plurality of cognitive formats and engagements from the very familiar to the most public. (shrink)

La famille Poincaré trouve ses racines en Lorraine, dans les départements de Meurthe-et-Moselle, de la Meuse et des Vosges. Arrancy-sur-Crusne, Bar-le-Duc, Landaville, Longuyon, Lunéville, Nancy, Neufchâteau, Remenoncourt, Xirocourt sont quelques-unes des communes ayant vu naître des ancêtres des deux Poincaré les plus connus, Henri et Raymond. Cet article propose une histoire de la famille d’Henri Poincaré sur le temps long et prend appui sur une vaste synthèse des informations généalogiques existantes. Dans un premier temps j’explore rapidement les origines anciennes du (...) nom « Poincaré » et certaines branches indirectes de la famille ; j’analyse ensuite de manière plus fine les parcours des acteurs principaux de la branche directe, en particulier ceux du père, de l’oncle et du grand-père paternels d’Henri Poincaré. Je termine ce parcours en me focalisant rapidement sur les mariages et les descendants respectifs d’Henri Poincaré et de sa sœur Aline. Un tel essai est structuré autour d’une double ambition : d’une part, apporter une contribution à la biographie de Poincaré centrée sur la sphère privée ; d’autre part, caractériser finement le milieu social dans lequel Poincaré a pu évoluer au cours de sa vie. (shrink)

Résumé Où va la peinture est un livre de Laurent Marissal qui se présente à la fois comme un traité sur la peinture et comme une œuvre peinte. Les actions qu’il relate sont elles-mêmes revendiquées comme des actions picturales. L’article s’interroge sur ces usages hétérodoxes de la notion de « picturalité », tout d’abord au niveau de la mise en forme narrative du livre, puis à celui des actions que cette forme a pour dessein de relater. Une dernière partie (...) étudie la relation du travail de Laurent Marissal avec le courant du narrative art. (shrink)

This is the first volume of a two-volume project whose aim is to publish all the known Middle English manuscript translations of the French Somme le mi, a thirteenth-century manual of religious instruction offering teaching on the Decalogue, the seven deadly sins and their remedies, compiled by the Dominican friar Laurent of Orleans. The project extends and deepens our knowledge of the influence of this popular French text, known today only from the versions entitled The Ayen bite of Inwit (...) and The Book of Vices and Virtues, published in 1866 and 1942, respectively. This volume presents the versions extant in BL MSS Royal 18. A. x and Add. 37677; the second will cover the versions in Cambridge, Corpus Christi College, MS 494, Oxford, Bodleian Library, MS Ashmole 1286, and Oxford, Bodleian Library, MS e Musaeo 23. The texts of both volumes have been prepared with the help of the recently-published edition of the French text, a circumstance from which the earlier English editions were unable to benefit. It is likely that the versions edited here for the first time will make a considerable contribution to our understanding of the processes of textual transmission and to that of translation itself in English literary circles of the fifteenth century. (shrink)

Le programme de recherche que l'on trouvera ci-dessous nous semble particulièrement original et utile d'un point de vue rythmanalytique – et cela à double titre. D'une part, alors que la vitesse, l'accélération et l'urgence sont, depuis quelques années, les objets d'une littérature pléthorique et désormais assez répétitive, Laurent Vidal et les chercheurs regroupés dans l'ANR TERRIAT s'intéressent, quant à eux, à la « lenteur » et à l'« attente ». De l'autre, ils orientent leur attention vers la question du (...) « (...) - 4. Rythmes du social – Nouvel article. (shrink)

Le programme de recherche que l'on trouvera ci-dessous nous semble particulièrement original et utile d'un point de vue rythmanalytique – et cela à double titre. Alors que la vitesse, l'accélération et l'urgence sont, depuis quelques années, les objets d'une littérature pléthorique et désormais assez répétitive, Laurent Vidal et les chercheurs regroupés dans l'ANR TERRIAT s'intéressent, quant à eux, à la « lenteur » et à l'« attente ». Second point fort, ils orientent leur attention vers la question des « (...) (...) - 4. Rythmes du social – Nouvel article. (shrink)

We consider effective versions of two classical theorems, the Lebesgue density theorem and the Denjoy–Young–Saks theorem. For the first, we show that a Martin-Löf random real z ∈ [0, 1] is Turing incomplete if and only if every effectively closed class.

In Sociology of Culture and of Cultural Practices, Laurent Fleury presents a synthesis of research and debate from France and the United States. He traces the development of the sociology of culture from its origins and examines the major trends that have emerged in this branch of sociology. Fleury also raises issues of cultural hierarchy, distinction, and legitimate culture and mass culture and focuses on new areas of research, including the role of institutions, the reception of works of art, (...) aesthetic experience, and emancipation through art. (shrink)

Résumé Les zoophytes, étranges êtres mi-animaux mi-végétaux, fascinent les naturalistes depuis l’Antiquité. Ces hybrides sont généralement conçus comme des êtres intermédiaires qui rendent sensible la continuité naturelle à travers l’échelle du vivant. Mais quand il s’agit des « conches anatifères », des coquillages écossais que l’on dit naître du bois pourri et engendrer des oiseaux (les bernaches), le savoir naturaliste de la Renaissance atteint ses limites. Les érudits discutent de la possibilité du phénomène en reconsidérant les théories de la génération (...) spontanée et en enquêtant sur ces merveilleux coquillages présents dans certains cabinets de curiosités. Remise en cause, la légende s’envole un peu plus loin, jusqu’en Chine, pour survivre à l’examen critique. (shrink)

It is only approximately one year before Sein und Zeit was published that Heidegger read Kant for the first time with attention and interest. Has this late reading had an influence on the treatise that Heidegger was writing? The thesis that we stand for is that Kant’s main influence shall be found in no passage of the treatise in particular, but mostly in the decision of adopting the form of a treatise.

Background: Clinical tests for detecting central and peripheral shoulder fatigue are limited. The discrimination of these two types of fatigue is necessary to better adapt recovery intervention. The Kinematic Theory of Rapid Human Movements describes the neuromotor impulse response using lognormal functions and has many applications in pathology detection. The ideal motor control is modeled and a change in the neuromuscular system is reflected in parameters extracted according to this theory. Objective: The objective of this study was to assess whether (...) a shoulder neuromuscular fatigue could be detected through parameters describing the theory, if there is the possibility to discriminate central from peripheral fatigue, and which handwriting test gives the most relevant information on fatigue. Methods: Twenty healthy participants performed two sessions of fast stroke handwriting on a tablet, before and after a shoulder fatigue. The fatigue was in internal rotation for one session and in external rotation during the other session. The drawings consisted of simple strokes, triangles, horizontal and vertical oscillations. Parameters of these strokes were extracted according to the Sigma-Lognormal model of the Kinematic Theory. The evolution of each participant was analyzed through a U-Mann-Whitney test for individual comparisons. A Hotelling’s T² test and a U-Mann-Whitney test were also performed on all participants to assess the group evolution after fatigue. Moreover, a correlation among parameters was calculated through Spearman coefficients to assess intrinsic parameters properties of each handwriting test. Results: Central and peripheral parameters were statistically different before and after fatigue with a possibility to discriminate them. Participants had various responses to fatigue. However, when considering the group, parameters related to the motor program execution showed significant increase in the handwriting tests after shoulder fatigue. The test of simple strokes permits to know more specifically where the fatigue comes from, whereas the oscillations tests were the most sensitive to fatigue. Conclusion: The results of this study suggest that the Sigma-Lognormal model of the Kinematic Theory is an innovative approach for fatigue detection with discrimination between the central and peripheral systems. Overall, there is a possibility to implement the setting for clinics and sports personalized follow-up. (shrink)

This article argues that many situations in social life can be analyzed by their requirement for the justification of action. It is in particular in situations of dispute that a need arises to explicate the grounds on which responsibility for errors is distributed and on which new agreement can be reached. Since a plurality of mutually incompatible modes of justification exists, disputes can be understood as disagreements either about whether the accepted rule of justification has not been violated or about (...) which mode of justification to apply at all. The article develops a grammar of such modes of justification, called orders of worth (grandeur), and argues that the human capacity for criticism becomes visible in the daily occurrence of disputes over criteria for justification. At the same time, it is underlined that not all social situations can be interpreted with the help of such a sense of justice, which resides on a notion of equivalence. Regimes of love, of violence or of familiarity are systematically distinct from regimes of justification. (shrink)

Ce texte est originellement paru dans la Revue Rursus. Poétique, réception et réécriture des textes antiques, le 3 octobre 2017. Nous remercions Laurent Calvié, Arnaud Zucker et la revue Rursus de nous avoir autorisé à le reproduire ici. Résumé : On a aujourd'hui tendance à souligner les libertés qu'auraient prises Martianus Capella en traduisant la rythmique d'Aristide Quintilien : on hésite même à considérer le premier comme un traducteur du second. Cela - Études grecques et latines.

We give a “direction for use” of the scale relativity theory and apply it to an example of spontaneous multiscale integration including four embedded levels of organization (intracellular, cell, tissue and organism-like levels). We conclude by an update of our analysis of the arctic sea ice melting.

In two highly powered studies (total N = 1617), we showed that individuals estimated that they would stop earlier than others in a Milgram-like biomedical task leading to the death of an animal, confirming the relevance of the Better than Average Effect (BTAE) in a new research setting. However, this effect was not magnified among participants displaying high self-esteem. We also showed that participants who already knew obedience studies expected that others would be more obedient and would administer more damaging (...) treatment to the target. However, knowledge of Milgram’s studies was unrelated to a higher estimate of their own behavior (study 1), and was even linked to the prediction that they would stop earlier (study 2, preregistered). Despite the wide educational use of Milgram’s studies to increase people’s awareness of the risks inherent to blind obedience, it may be that this knowledge only serves to evaluate other’s behaviors, and not oneself. (shrink)

ArgumentThe Germans occupying Paris arrested Emile Borel and three other members of the Académie des Sciences in October 1941 and released them about five weeks later. Drawing on German and French archives and other sources, we argue that these events illustrate the complexity of the motivations and tactics of the occupiers and the occupied. While Borel and his colleagues were genuine members of the Resistance, and those who arrested them were full participants in a brutal occupation, both sides respected a (...) bargain, of no small importance to the Vichy regime, that allowed the university to pursue its work if its members avoided overt acts of opposition. (shrink)

Guillaume St-Laurent | : Le projet philosophique central de Charles Taylor se présente comme une critique de l’« image épistémologique » (epistemological picture) de la raison, critique qui se déploie au nom d’une compréhension de la rationalité humaine plus sensible à sa finitude transcendantale et historique. L’objectif du présent essai consiste à présenter une brève analyse comparative de cette image épistémologique (ou post-cartésienne) ainsi que de la perspective herméneutique que lui oppose notre auteur. En ce sens, nous comparerons tour (...) à tour six aspects déterminants de ces deux conceptions : le caractère « apodictique », « médiationnel », « désengagé », « désignatif », « dépassionné » et « procédural » de la première et le caractère « ad hominem », « immergé », « situé », « expressif », « passionné » et « substantiel » de la seconde. Nous éclairerons en outre les enjeux complexes de cette critique par quelques remarques introductives et conclusives. | : Charles Taylor’s main philosophical project presents itself as a critique of the “epistemological picture” of rationality. This critique is put forward in the name of a new understanding of reason, more sensitive to its transcendental and historical finitude. We herein propose a short comparative analysis of this epistemological (or post-cartesian) picture and Taylor’s hermeneutical perspective. To this effect, we will compare six essential aspects of these two conceptions : the “apodictic”, “mediational”, “disengaged”, “designative”, “dispassionate”, and “procedural” character of the former, and the “ad hominem”, “immerged”, “situated”, “expressive”, “passionate”, and “substantial” character of the latter. We will also try to shed light on these complex issues by some introductive and conclusive remarks. (shrink)

Les travaux ici rassemblés constituent les actes d’une journée d’études tenue en mai 2010 au Centre d’études supérieures de la Renaissance de Tours. Conformément aux coutumes épistémologiques du Centre, des spécialistes venus d’horizons disciplinaires très variés – histoire, philosophie, géographie, études italiennes – s’y sont retrouvés autour d’une interrogation commune sur les formes de la domination territoriale que met en jeu l’idée...

Novalis explores the possibilities contained within the intellectual intuition highlighted by Fichte. The pure I or intellectual intuition is the absolute organ of the mind ; it no longer serves merely to deduce the world a priori, as it does in Fichte, but to discipline all the other organs with which man is endowed. It does so in order to abstract the body and soul from any mechanical influence and allow each of our senses to engender an a priori world. (...) This article set outs to analyse the meaning of this aesthetic and poetic extension of Fichte’s philosophy. Novalis explore les possibilités recelées par l’intuition intellectuelle mise en évidence par Fichte. Le Moi pur ou intuition intellectuelle est l’organe absolu de l’esprit qui ne servira plus simplement, comme chez Fichte, à déduire a priori le monde, mais à discipliner la totalité des autres organes dont l’homme est pourvu, de manière à pouvoir soustraire le corps et l’âme à toute influence mécanique, et à permettre à chacun de nos sens d’engendrer un monde a priori. C’est le sens de ce prolongement esthétique et poétique de la philosophie de Fichte que cet article se propose d’analyser. (shrink)