Frédérique Matonti, Intellectuels communistes. Essai sur l’obéissance politique. La Nouvelle Critique (1967-1980)

De la Libération à la fin des années 70, la diversité et l’impact de la presse communiste – en correspondance avec les résultats électoraux obtenus par le Parti communiste français (PCF), mais aussi au regard de l’image positive de celui-ci dans une partie non négligeable de la population française – sont des faits incontestables. Aux côtés de L’Humanité, organe central du Parti, une très grande variété de publications spécialisées, plus ou moins liées au Comité central et au Bureau politique..

Marc Jimenez, La querelle de l’art contemporain

« Y-a-t-il encore des critères d’appréciation esthétique ? ». En posant dès la première page de son essai cette décisive question, Marc Jimenez, philosophe et germaniste connu pour ses travaux sur l’histoire de l’esthétique, sur l’esthétique adornienne et sur la critique, indique clairement qu’il refuse de se laisser aller à un quelconque désenchantement, qui assurément nourri le ressentiment éprouvé par certains nostalgiques du grand art (et qui fut, comme le rappelle cet ouvrage, à l’origin..

Dominique Berthet, Les défis de la critique d’art

Dominique Berthet, philosophe, esthéticien, enseignant-chercheur et directeur de l’incontournable revue Recherches en esthétique, développe, dans cet ouvrage qui cerne et discute Les défis de la critique d’art, une rigoureuse approche de nombreuses hypothèses, anciennes ou actuelles, s’attachant à définir l’art de la critique et à décrypter les enjeux que celle-ci, inéluctablement, soulève et auxquels elle doit répondre. Incontestablement, ce livre se nourrit d’une riche expérience personnell..

Lightning damage assessment into composite based on surface explosion and fiber breakage

Lightning damage mechanism for composite aircraft structure is a complex multi-physical phenomenon. The lightning current entering into the surface metallic protection and the carbon plies generates Joule’s effects and electromagnetic forces which both induce mechanical forces and surface explosion that produce a significant mechanical impact. The explosion of the lightning strike protection has been recorded through the measurement of the vaporization profile evolution in space and time using transparent glass epoxy substrates. In this paper, this profile is combined to shock wave model developed by the study of electric explosion on wire equivalent to web of ECF. The second important phenomenon is fiber breakage due to current flow in CFRP. This has been assessed through specific lightning test measuring the current distribution between CFRP and LSP depending on the paint thickness. It is aimed is this paper to present the tests setup and observations. Those two loading components have been injected into a mechanical model using Abaqus Explicit® in order to assess the damage ignition and propagation in the composite thickness as a function of time. Simulations are similar to previous studies but use real tests measurements for the pressure evolution instead of an impulsion induced estimation. Results of the simulations are confronted with laboratory lightning tests. Deflection as functions of time has been measured thanks to stereo correlation devices. Simulated damage distributions are compared to post-mortem non-destructive and destructive measurement in the core of the composite plates

Estimation of the load produced by the electro-thermal behaviour of lightning strike protection layers on a composite panel

The lightning damage mechanism for carbon laminate aeronautical structure is a complex multi-physical phenomenon. The lightning current entering into the surface metallic protection, called LSP (Lightning Strike Protection) and the carbon plies generates Joule’s effects and magnetic forces which both induce mechanical forces and surface explosion that has a significant mechanical impact. In this paper, the focus is made on the contribution of the surface explosion. An electro-thermal model of the vaporization profile has been first validated with lightning test results for an accurate dynamic profile. In a second step an overpressure profile combined with the vaporization front has been implemented in a mechanical model. The deflection profiles of the mechanical model are in good correlation with measurements. The contribution of the explosion is the major contributor in the loading of composite panel. A next step will consist in the determination of the contribution of the CFRP (Carbon Fiber Reinforced Plastic) explosion in the first plies which initiates the damage in the composite by breaking the fibers

revista de Ciências da Arte

info:eu-repo/semantics/publishedVersio

SCN5A mutations in 442 neonates and children: genotype-phenotype correlation and identification of higher-risk subgroups.

Aims To clarify the clinical characteristics and outcomes of children with SCN5A-mediated disease and to improve their risk stratification. Methods and results A multicentre, international, retrospective cohort study was conducted in 25 tertiary hospitals in 13 countries between 1990 and 2015. All patients ≤16 years of age diagnosed with a genetically confirmed SCN5A mutation were included in the analysis. There was no restriction made based on their clinical diagnosis. A total of 442 children {55.7% boys, 40.3% probands, median age: 8.0 [interquartile range (IQR) 9.5] years} from 350 families were included; 67.9% were asymptomatic at diagnosis. Four main phenotypes were identified: isolated progressive cardiac conduction disorders (25.6%), overlap phenotype (15.6%), isolated long QT syndrome type 3 (10.6%), and isolated Brugada syndrome type 1 (1.8%); 44.3% had a negative electrocardiogram phenotype. During a median follow-up of 5.9 (IQR 5.9) years, 272 cardiac events (CEs) occurred in 139 (31.5%) patients. Patients whose mutation localized in the C-terminus had a lower risk. Compound genotype, both gain- and loss-of-function SCN5A mutation, age ≤1 year at diagnosis in probands and age ≤1 year at diagnosis in non-probands were independent predictors of CE. Conclusion In this large paediatric cohort of SCN5A mutation-positive subjects, cardiac conduction disorders were the most prevalent phenotype; CEs occurred in about one-third of genotype-positive children, and several independent risk factors were identified, including age ≤1 year at diagnosis, compound mutation, and mutation with both gain- and loss-of-function

Soyons raisonnables, exigeons l'impossible !

Lachaud Jean-Marc. Soyons raisonnables, exigeons l'impossible !. In: Raison présente, n°185, 1er trimestre 2013. Émancipation plurielles. pp. 77-81

Ernst Bloch, Georg Lukács : une approche divergente des pratiques du montage en art et en littérature

Lachaud Jean-Marc. Ernst Bloch, Georg Lukács : une approche divergente des pratiques du montage en art et en littérature. In: L'Homme et la société, N. 79-82, 1986. Lukács-Bloch : raison et utopie. pp. 25-32