91 research outputs found

    L’imaginaire du zùle ligueur: entre conversion et possession

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    À propos de « l'Ă©tablissement de la raison d'Ă©tat et la Saint-BarthĂ©lemy »

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    Le beau texte de Marie-Madeleine Fragonard me suggĂšre l'interrogation suivante : certes, on constate que la Saint-BarthĂ©lemy a Ă©tĂ© un tournant, certes le massacre accompli malgrĂ© la “foi » royale dĂ©clenche un sĂ©isme qui initie la formation d'une pensĂ©e politique de lĂ©gitimation ou de critique, mais on peut se demander, avant la conceptualisation textuelle du fait du crime d'État, s'il n'y avait pas dĂ©jĂ , dans la sphĂšre de l'exercice du pouvoir, une dĂ©termination empirique posant le principe d..

    À propos de « l'Ă©tablissement de la raison d'Ă©tat et la Saint-BarthĂ©lemy »

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    Le beau texte de Marie-Madeleine Fragonard me suggĂšre l'interrogation suivante : certes, on constate que la Saint-BarthĂ©lemy a Ă©tĂ© un tournant, certes le massacre accompli malgrĂ© la “foi » royale dĂ©clenche un sĂ©isme qui initie la formation d'une pensĂ©e politique de lĂ©gitimation ou de critique, mais on peut se demander, avant la conceptualisation textuelle du fait du crime d'État, s'il n'y avait pas dĂ©jĂ , dans la sphĂšre de l'exercice du pouvoir, une dĂ©termination empirique posant le principe d..

    New evidence of a mitochondrial genetic background paradox: Impact of the J haplogroup on the A3243G mutation

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    International audienceBackground: The A3243G mutation in the tRNALeu gene (UUR), is one of the most common pathogenic mitochondrial DNA (mtDNA) mutations in France, and is associated with highly variable and heterogeneous disease phenotypes. To define the relationships between the A3243G mutation and mtDNA backgrounds, we determined the haplogroup affiliation of 142 unrelated French patients – diagnosed as carriers of the A3243G mutation – by control-region sequencing and RFLP survey of their mtDNAs. Results: The analysis revealed 111 different haplotypes encompassing all European haplogroups, indicating that the 3243 site might be a mutational hot spot. However, contrary to previous findings, we observed a statistically significant underepresentation of the A3243G mutation on haplogroup J in patients (p = 0.01, OR = 0.26, C.I. 95%: 0.08–0.83), suggesting that might be due to a strong negative selection at the embryo or germ line stages. Conclusion: Thus, our study supports the existence of mutational hotspot on mtDNA and a "haplogroup J paradox," a haplogroup that may increase the expression of mtDNA pathogenic mutations, but also be beneficial in certain environmental contexts

    A chemical survey of exoplanets with ARIEL

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    Thousands of exoplanets have now been discovered with a huge range of masses, sizes and orbits: from rocky Earth-like planets to large gas giants grazing the surface of their host star. However, the essential nature of these exoplanets remains largely mysterious: there is no known, discernible pattern linking the presence, size, or orbital parameters of a planet to the nature of its parent star. We have little idea whether the chemistry of a planet is linked to its formation environment, or whether the type of host star drives the physics and chemistry of the planet’s birth, and evolution. ARIEL was conceived to observe a large number (~1000) of transiting planets for statistical understanding, including gas giants, Neptunes, super-Earths and Earth-size planets around a range of host star types using transit spectroscopy in the 1.25–7.8 ÎŒm spectral range and multiple narrow-band photometry in the optical. ARIEL will focus on warm and hot planets to take advantage of their well-mixed atmospheres which should show minimal condensation and sequestration of high-Z materials compared to their colder Solar System siblings. Said warm and hot atmospheres are expected to be more representative of the planetary bulk composition. Observations of these warm/hot exoplanets, and in particular of their elemental composition (especially C, O, N, S, Si), will allow the understanding of the early stages of planetary and atmospheric formation during the nebular phase and the following few million years. ARIEL will thus provide a representative picture of the chemical nature of the exoplanets and relate this directly to the type and chemical environment of the host star. ARIEL is designed as a dedicated survey mission for combined-light spectroscopy, capable of observing a large and well-defined planet sample within its 4-year mission lifetime. Transit, eclipse and phase-curve spectroscopy methods, whereby the signal from the star and planet are differentiated using knowledge of the planetary ephemerides, allow us to measure atmospheric signals from the planet at levels of 10–100 part per million (ppm) relative to the star and, given the bright nature of targets, also allows more sophisticated techniques, such as eclipse mapping, to give a deeper insight into the nature of the atmosphere. These types of observations require a stable payload and satellite platform with broad, instantaneous wavelength coverage to detect many molecular species, probe the thermal structure, identify clouds and monitor the stellar activity. The wavelength range proposed covers all the expected major atmospheric gases from e.g. H2O, CO2, CH4 NH3, HCN, H2S through to the more exotic metallic compounds, such as TiO, VO, and condensed species. Simulations of ARIEL performance in conducting exoplanet surveys have been performed – using conservative estimates of mission performance and a full model of all significant noise sources in the measurement – using a list of potential ARIEL targets that incorporates the latest available exoplanet statistics. The conclusion at the end of the Phase A study, is that ARIEL – in line with the stated mission objectives – will be able to observe about 1000 exoplanets depending on the details of the adopted survey strategy, thus confirming the feasibility of the main science objectives.Peer reviewedFinal Published versio

    Préface

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    Il y a des livres qui donnent un bonheur de lecture qui est immĂ©diat, parce qu’ils dĂ©concertent. Ou plutĂŽt qu’ils semblent d’emblĂ©e dĂ©porter l’attention vers d’autres modes d’apprĂ©hensions, qu’ils procĂšdent par effet de surprise et donc de dĂ©sorientation. Avec Antoine Roullet, vous vous sentirez intriguĂ©, et placĂ© en quelque sorte sous tension. Et qui dit tension dit aussi fascination. Parce que vous allez vous engager dans la reconstitution d’un univers surprenant. Tout commence Ă  la maniĂšre..

    Recherches sur la crise de l'aristocratie en France au XVIe siĂšcle ; les dettes de la Maison de Nevers

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    Crouzet Denis. Recherches sur la crise de l'aristocratie en France au XVIe siĂšcle ; les dettes de la Maison de Nevers. In: Histoire, Ă©conomie et sociĂ©tĂ©, 1982, 1ᔉ annĂ©e, n°1. pp. 7-50

    Mystique royale et « sentiment national » ?

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    Un manuscrit de 315 folii numĂ©rotĂ©s, conservĂ© au dĂ©partement des manuscrits de la BNF, donne un Ă©tonnant rĂ©cit « des visions et des songe et des rĂ©vĂ©lasions de dieu et de la saincte vierge et des saincts et des ange et des homme dans leglise militant arivĂ© en la personne de frere fiacre de saincte marguerite, augustin des chausse indigne ». En effet, durant une cinquantaine d’annĂ©es, Denis Antheaulme, nĂ© le 21 fĂ©vrier 1609 et entrĂ© en religion le 20 mai 1632, quĂȘteur du couvent de Notre-Dame des Victoires de Paris, vĂ©cut dans un univers visionnaire au centre duquel se trouvait le roi de Dieu donnĂ©, Louis XIV. Une autre figure de la monarchie du second xviie siĂšcle surgit ainsi, celle d’une monarchie merveilleuse, miraculeuse, apprĂ©hendĂ©e au sein d’un processus de fusion mythique entre le pouvoir souverain et le peuple qu’il gouverne. Louis XIV s’y impose comme un nouveau Christ, un roi nĂ© d’une grĂące, dĂ©tenteur d’une vertu qui fait que les Français ne peuvent en retour que s’identifier pleinement Ă  leur roi, vivant pour sa gloire et sa dĂ©fense dans leur engagement contre les adversaires de l’État royal. Les visions du frĂšre Fiacre de Sainte-Marguerite Ă©voquent ainsi l’ébauche d’une « conscience nationale » qui voulait prendre sa dynamique dans une Ă©motion sacrĂ©e de la France en gloire par les actes d’une monarchie sainte et providentielle.Un manuscrito de 315 folios numerados, conservado en el departamento de manuscritos de la BNF, aporta un curioso relato « des visions et des songe et des rĂ©vĂ©lasions de dieu et de la saincte vierge et des saincts et des ange et des homme dans leglise militant arivĂ© en la personne de frere fiacre de saincte marguerite, augustin des chausse indigne ». Denis Antheaulme, nacido el 21 de febrero de 1609, habĂ­a entrado en religiĂłn el 20 de mayo de 1632; limosnero del convento de Notre-Dame des Victoires de Paris, viviĂł, en efecto, durante casi cinco dĂ©cadas, en un universo visionario en cuyo centro se encontraba el rey Dieu donnĂ©, Luis XIV. Surge asĂ­ otra imagen de la monarquĂ­a de la segunda mitad del siglo xvii, la de una monarquĂ­a maravillosa, milagrosa, aprehendida en el seno de un proceso de fusiĂłn mĂ­stica entre el poder soberano y el pueblo al que gobierna. Luis XIV se impone como un nuevo Cristo, un rey nacido de la gracia, poseedor de una virtud que hace que los franceses no tengan mĂĄs remedio que identificarse plenamente con su rey, viviendo para su gloria y su defensa en su compromiso contra los adversarios del Estado real. Las visiones del hermano Fiacre de Sainte-Marguerite evocan asĂ­ el esbozo de una «conciencia nacional» que pretendĂ­a tomar fuerza de la emociĂłn sagrada de una Francia gloriosa por los actos de una monarquĂ­a santa y providencial.A manuscript of 315 numbered folii stored in the manuscripts department of the BNF gives an astonishing account « des visions et des songe et des rĂ©vĂ©lasions de dieu et de la saincte vierge et des saincts et des ange et des homme dans leglise militant arivĂ© en la personne de frere fiacre de saincte marguerite, augustin des chausse indigne ». And indeed for fifty years Denis Antheaulme, born on 21 February 1609 and received into the Church on 20 May 1632, collector at the monastery of Notre-Dame des Victoires in Paris, inhabited a visionary universe at whose centre stood the God-given king, Louis XIV. Thus emerged another face of the monarchy of the second half of the 17th century –that of a wondrous, miraculous monarchy, apprehended through a process of mythical fusion between the sovereign power and the people governed by it. Louis XIV took his place there as a new Christ, a king born of grace, possessor of a virtue in response to which the French people could do no other than identify fully with their king, living for his glory and his defence as they stood firm against the adversaries of the royal State. The visions of frĂšre Fiacre de Sainte-Marguerite thus conjure up the faint beginnings of a « national consciousness » whose source of strength lay in a feeling of the sacredness of France, glorified by the deeds of a saintly and providential monarchy
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