48 resultados para Laffitte
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Référence bibliographique : Rol, 59244
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Inscripción en la parte inferior: "Livre des orateurs"
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Mode of access: Internet.
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Mode of access: Internet.
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Mode of access: Internet.
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In a letter to a close friend dated April 1922 Le Corbusier announced that he was to publish his first major book, Architecture et révolution, which would collect “a set ofarticles from L’EN.”1—L’Esprit nouveau, the revue jointly edited by him and painter Amédée Ozenfant, which ran from 1920 to 1925.2 A year later, Le Corbusier sketched a book cover design featuring “LE CORBUSIER - SAUGNIER,” the pseudonymic compound of Pierre Jeanneret and Ozenfant, above a square-framed single-point perspective of a square tunnel vanishing toward the horizon. Occupying the lower half of the frame was the book’s provisional title in large handwritten capital letters, ARCHITECTURE OU RÉVOLUTION, each word on a separate line, the “ou” a laconic inflection of Paul Laffitte’s proposed title, effected by Le Corbusier.3 Laffitte was one of two publishers Le Corbusier was courting between 1921 and 1922.4 An advertisement for the book, with the title finally settled upon, Vers une architecture, 5 was solicited for L’Esprit nouveau number 18. This was the original title conceived with Ozenfant, and had in fact already appeared in two earlier announcements.6 “Architecture ou révolution” was retained as the name of the book’s crucial and final chapter—the culmination of six chapters extracted from essays in L’Esprit nouveau. This chapter contained the most quoted passage in Vers une architecture, used by numerous scholars to adduce Le Corbusier’s political sentiment in 1923 to the extent of becoming axiomatic of his early political thought.7 Interestingly, it is the only chapter that was not published in L’Esprit nouveau, owing to a hiatus in the journal’s production from June 1922 to November 1923.8 An agitprop pamphlet was produced in 1922, after L’Esprit nouveau 11-12, advertising an imminent issue “Architecture ou révolution” with the famous warning: “the housing crisis will lead to the revolution. Worry about housing.”9
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Substituted 3-(phenylamino)-1H-pyrrole-2,5-diones were identified from a high throughput screen as inducers of human ATP binding cassette transporter A1 expression. Mechanism of action studies led to the identification of GSK3987 (4) as an LXR ligand. 4 recruits the steroid receptor coactivator-1 to human LXR alpha and LXRP with EC(50)s of 40 nM, profiles as an LXR agonist in functional assays, and activates LXR though a mechanism that is similar to first generation LXR agonists.
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Aflatoxin B1 (AFB1), a mycotoxin produced by Aspergillus flavus or A. parasiticus, is a frequent contaminant of food and feed. This toxin is hepatotoxic and immunotoxic. The present study analyzed in pigs the influence of AFB1 on humoral and cellular responses, and investigated whether the immunomodulation observed is produced through interference with cytokine expression. For 28 days, pigs were fed a control diet or a diet contaminated with 385, 867 or 1807 mu g pure AFB1/kg feed. At days 4 and 15, pigs were vaccinated with ovalbumin. AFB1 exposure, confirmed by an observed dose-response in blood aflatoxin-albumin adduct, had no major effect on humoral immunity as measured by plasma concentrations of total IgA, IgG and IgM and of anti-ovalbumin IgG. Toxin exposure did not impair the mitogenic response of lymphocytes but delayed and decreased their specific proliferation in response to the vaccine antigen, suggesting impaired lymphocyte activation in pigs exposed to AFB1. The expression level of pro-inflammatory (TNF-alpha, IL-1 beta, IL-6, IFN-gamma) and regulatory (IL-10) cytokines was assessed by real-time PCR in spleen. A significant up-regulation of all 5 cytokines was observed in spleen from pigs exposed to the highest dose of AFB1. In pigs exposed to the medium dose, IL-6 expression was increased and a trend towards increased IFN-gamma and IL-10 was observed. In addition we demonstrate that IL-6 impaired in vitro the antigenic- but not the mitogenic-induced proliferation of lymphocytes from control pigs vaccinated with ovalbumin. These results indicate that AFB1 dietary exposure decreases cell-mediated immunity while inducing an inflammatory response. These impairments in the immune response could participate in failure of vaccination protocols and increased susceptibility to infections described in pigs exposed to AFB1. (C) 2008 Elsevier Inc. All rights reserved.