582 research outputs found

    Extent and structure of intervening absorbers from absorption lines redshifted on quasar emission lines

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    We wish to study the extent and subparsec scale spatial structure of intervening quasar absorbers, mainly those involving neutral and molecular gas. We have selected quasar absorption systems with high spectral resolution and good S/N data, with some of their lines falling on quasar emission features. By investigating the consistency of absorption profiles seen for lines formed either against the quasar continuum source or on the much more extended emission line region (ELR), we can probe the extent and structure of the foreground absorber over the extent of the ELR (0.3-1 pc). The spatial covering analysis provides constraints on the transverse size of the absorber and thus is complementary to variability or photoionisation modelling studies. The methods we used to identify spatial covering or structure effects involve line profile fitting and curve of growth analysis.We have detected three absorbers with unambiguous non uniformity effects in neutral gas. For one extreme case, the FeI absorber at z_abs=0.45206 towards HE 0001-2340, we derive a coverage factor of the ELR of at most 0.10 and possibly very close to zero; this implies an absorber overall size no larger than 0.06 pc. For the z_abs=2.41837 CI absorber towards QSO J1439+1117, absorption is significantly stronger towards the ELR than towards the continuum source in several CI and CI* velocity components pointing to factors of about two spatial variations of their column densities and the presence of structures at the 100 au - 0.1 pc scale. The other systems with firm or possible effects can be described in terms of partial covering of the ELR, with coverage factors in the range 0.7 - 1. The overall results for cold, neutral absorbers imply a transverse extent of about five times or less the ELR size, which is consistent with other known constraints.Comment: Accepted in A&A, 17 pages, 14 figure

    Penser sa mort ?

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    DostoĂŻevski, le prophĂšte. Remarques sur L’Europe russe annoncĂ©e par DostoĂŻevski (1948) de Paul Morand

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    FĂ©ru de littĂ©rature russe, Paul Morand a Ă©tĂ© tout spĂ©cialement marquĂ© par sa lecture de DostoĂŻevski. Si Gogol, Tourgueniev et TolstoĂŻ l’ont ramenĂ© vers la tradition du rĂ©alisme balzacien, l’auteur du Journal d’un Ă©crivain l’a influencĂ© sur un plan qui dĂ©passe la littĂ©rature. À preuve, un essai qui occupe une place discrĂšte dans l’oeuvre de Morand, mais qui constitue un filon de premier ordre : L’Europe russe annoncĂ©e par DostoĂŻevski (1948). Cet article se propose d’examiner l’importance de DostoĂŻevski Ă  travers le contexte moral dans lequel Morand a Ă©laborĂ© ses grands rĂ©cits d’aprĂšs-guerre, tels Le flagellant de SĂ©ville et « Le dernier jour de l’Inquisition ».Keenly interested in Russian literature, Paul Morand was especially marked by his reading of Dostoevsky. If Gogol, Turgenev and Tolstoy steered him towards the tradition of Balzacian realism, the author of The Writer’s Diary influenced him in a way that went beyond literature. The proof lies in an essay that occupies a discrete place in Morand’s work but constitutes a mother lode: L’Europe russe annoncĂ©e par DostoĂŻevski (1948) (Russian Europe heralded by Dostoevsky). This article purports to examine Dostoevsky’s importance using the moral context in which Morand outlined his major post-War narratives such as Le flagellant de SĂ©ville (The Flogger of Seville) and Le dernier jour de l’Inquisition (The Last Day of the Inquisition)

    CĂ©leste Ugolin (1926) de Georges Ribemont-Dessaignes et l’influence d’Alfred Jarry dans le roman

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    Le passage Ă  la postĂ©ritĂ© de l’écrivain français Georges Ribemont-Dessaignes (1884-1974) est assurĂ© en ce qui concerne ses activitĂ©s de poĂšte, de polĂ©miste et de dramaturge au sein du groupe Dada ; il l’est moins, en revanche, en ce qui a trait Ă  son oeuvre romanesque, pourtant abondante et diversifiĂ©e. Afin d’inviter Ă  une (re)dĂ©couverte de l’oeuvre de ce romancier hors sĂ©rie, qui sut, sans s’y cantonner, rester fidĂšle Ă  l’esprit subversif et rageusement libĂ©rateur de Dada, cet article se propose d’examiner comment CĂ©leste Ugolin (1926), rĂ©cit du dĂ©tachement et de l’agression continus, rĂ©emploie avec profit une conception ultramoderne de la littĂ©rature, auparavant illustrĂ©e dans l’oeuvre dramatique et romanesque d’Alfred Jarry (1874-1907), et centrĂ©e sur une logique en deux temps : dĂ©molir — reconstruire. Davantage qu’une Ă©tude de filiation littĂ©raire, cet article a pour visĂ©e de replacer Ribemont-Dessaignes au rang des romanciers marquants du premier demi-siĂšcle, aux cĂŽtĂ©s d’Aragon, de Cendrars et de Camus.Georges Ribemont-Dessaignes’s (1884-1974) literary legacy is well established with regard to his activities as poet, polemicist and playwright working within the Dada movement. His importance as a novelist, however, remains to be acknowledged. In order to contribute to the (re)discovery of this atypical French writer, who managed to remain faithful — but not enslaved — to Dada’s subversive and liberating spirit, the present contribution offers a new reading of CĂ©leste Ugolin (1926), a novel which constantly alternates between indifference and aggressivity, and its affinities with the works by Alfred Jarry (1874-1907). Inspired by Jarry’s ultramodern ideas of literature, Ribemont-Dessaignes implements a binary logic of destruction and reconstruction. More than a study in literary influences, this paper seeks to establish Ribemont-Dessaignes’s place among important early twentieth-century novelists like Aragon, Cendrars and Camus

    Face à la mort : Les expositions À la vie, à la mort et Deuils

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    Continuity, capture, network: The professional logics of the organization of care

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    Cooperation in medicine, as in all group activity, is a key problem both for the actors involved and for sociologists. Classical studies in the sociology of health and medicine are moreover of little help in conceptualizing this problem. While arguing against the idea that affiliation with an institutional structure – such as a part of a professional segment or an area of expertise – determines relations between actors, our analysis seeks to move beyond the description of what is presented as being purely contingent. To understand phenomena related to cooperation and conflict, it is possible and worthwhile to distinguish between professionals according to their position in the therapeutic chain and their form of involvement in the strategy of care. Cooperation is based, in particular, on the match between “acquisitive” professionals who feel it is their duty to coordinate medical care and follow-up on a patient throughout the healing process, and other professionals who see their intervention as being limited to one phase in the therapeutic itinerary

    Bibliographie indicative sur la pensée de sa mort

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