A. Robert Lee, éd. — Nathaniel Hawthorne New Critical Essays

Sommer Françoise. A. Robert Lee, éd. — Nathaniel Hawthorne New Critical Essays. In: Revue Française d'Etudes Américaines, N°16, février 1983. Les intellectuels aux Etats-Unis. pp. 174-175

A. Robert Lee, éd. — Nathaniel Hawthorne New Critical Essays

Sommer Françoise. A. Robert Lee, éd. — Nathaniel Hawthorne New Critical Essays. In: Revue Française d'Etudes Américaines, N°16, février 1983. Les intellectuels aux Etats-Unis. pp. 174-175

Tempo e espaço na prosa-poética Vermelho Amargo, de Bartolomeu Campos de Queirós

Vermelho Amargo, work by the contemporary writer from Minas Gerais, Bartolomeu Campos de Queirós, published in 2011, is rooted in the theme of the memory of his childhood, suggesting a reflection on the characteristics of the time and the location of these memories. The narrative is set up as poetic prose, written in the first person, presenting the story of a narrator-character who, in his maturity, revisits the significant places of his childhood and recreates the sensations experienced in a childhood marked by the lack of love. The plot has a non-linear timing, composed of fragments of scenes of the everyday life. Vermelho Amargo is a text marked by the spaces inhabited in the childhood and, more specifically, in the restricted space of the birthplace for characters involved in this universe, internalized in their anxieties and aspirations. As a result of these particularities of the work, the indefinite time of the childhood and the strength of the childhood home, it was chosen to focus this study on the analysis of the narrative elements, time and space. Among the theoretical sources that give support to this research, are the considerations of Gaston Bachelard and the assumptions of Walter Benjamin, present throughout the study. Compartments of sweetness, sorrow, secrets, discoveries converge on the textual architecture where memories transit and spectra from the past and torments from the present are hidden.Vermelho Amargo, obra do escritor contemporâneo mineiro Bartolomeu Campos de Queirós, publicada em 2011, está alicerçada na temática da memória dos tempos de infância, sugerindo uma reflexão sobre as características do tempo e a localização dessas memórias. A narrativa configura-se como prosa-poética, escrita em primeira pessoa, apresentando a história de um narrador-personagem que, em sua maturidade, revisita os espaços significativos de sua meninice e recria as sensações experimentadas em uma infância marcada pela falta de amor. O enredo apresenta um tempo não linear, composto por fragmentos de cenas da vida cotidiana. Vermelho Amargo é um texto assinalado pelos espaços habitados na infância e, mais especificamente, no restrito espaço da casa-natal, por personagens envolvidos nesse universo, interiorizados em suas angústias e anseios. Em decorrência dessas particularidades da obra, o tempo indefinido da infância e a força do espaço casanatal, optou-se por privilegiar neste estudo a análise dos elementos narrativos tempo e espaço. Entre as fontes teóricas que fundamentam esta pesquisa destacam-se as considerações de Gaston Bachelard e os pressupostos de Walter Benjamin, presentes em todo o estudo. Compartimentos de doçuras, de amarguras, de segredos, de descobertas se confluem na arquitetura textual onde transitam lembranças e se escondem espectros do passado e angústias do presente.PROQUALI (UFJF

Study of ecological influence of fire on fauna in mediterranean ecosystems (soil and above-ground layer). Patterns of post-fire recovery

The effects of wild fire on the fauna (soil arthropods and small mammals) were studied in the Albères chain (Pyrénées Orientales, France). After fire, the vegetation structure tends to go back to the pre-fire situation. Retrogressive ecosystems (i.e. grasslands3 maquis) rapidly return to the pre-fire situation, while forest restoration is very slow. Fire destroys the litter layer and induces strong changes in the humus biological activities. It induces an immediate loss of animals, and also a delayed mortality. But almost all species may recolonize their habitat. In open habitat, characterized by a high primary production where the herbivores /predators system dominates, the recovery is rapid. On the other hand, in woodlands where the necrômass dominates (decomposers system), the disturbances are very strong and the recolonization takes a very long time with many transitional stages.Athias-Binche Françoise, Briard Justine, Fons Roger, Sommer Francisca. Study of ecological influence of fire on fauna in mediterranean ecosystems (soil and above-ground layer). Patterns of post-fire recovery. In: Ecologia mediterranea, tome 13 n°4, 1987. Influence of fire on the stability of mediterranean forest ecosystems. Giens (France) 23-26/03/1987. pp. 135-154

Comparison at the microscopic scale of mixed fatty acid-protein Langmuir-Blodgett films resulting from horizontal or vertical transfer

Mixed Langmuir films in which behenic acid and glucose oxidase are associated have been transferred by vertical or horizontal lifting methods onto pyrolytic graphite. The resulting films have been compared by scanning electron microscopy and by scanning force microscopy. The structures observed at the microscopic scale are different for the two transfer techniques in terms of homogeneity, dimensions and orientations. At a nanoscopic scale however, the organization of enzyme molecules is quite analogous in both cases.Des films mixtes de Langmuir associant acide béhénique et glucose oxydase ont été transférés par des techniques de transfert horizontal ou de transfert vertical sur graphite pyrolytique. La structure de ces films a été comparée par microscopie électronique à balayage et par microscopie à force atomique aux échelles microscopique et nanoscopique. Les structures observées à l'échelle du micromètre sont assez différentes pour les deux types de transfert (homogénéité, tailles caractéristiques, orientations). L'arrangement des molécules d'enzyme est toutefois comparable à l'échelle submicromètrique dans les deux cas

Crystal structure of the IrrE protein, a central regulator of DNA damage repair in deinococcaceae.

International audienceDeinococcaceae are famous for their extreme radioresistance. Transcriptome analysis in Deinococcus radiodurans revealed a group of genes up-regulated in response to desiccation and ionizing radiation. IrrE, a novel protein initially found in D. radiodurans, was shown to be a positive regulator of some of these genes. Deinococcus deserti irrE is able to restore radioresistance in a D. radiodurans DeltairrE mutant. The D. deserti IrrE crystal structure reveals a unique combination of three domains: one zinc peptidase-like domain, one helix-turn-helix motif and one GAF-like domain. Mutant analysis indicates that the first and third domains are critical regions for radiotolerance. In particular, mutants affected in the putative zinc-binding site are as sensitive to gamma and UV irradiation as the DeltairrE bacteria, and radioresistance is strongly decreased with the H217L mutation present in the C-terminal domain. In addition, modeling of IrrE-DNA interaction suggests that the observed IrrE structure may not bind double-stranded DNA through its central helix-turn-helix motif and that IrrE is not a classic transcriptional factor that activates gene expression by its direct binding to DNA. We propose that the putative protease activity of IrrE could be a key element of transcription enhancement and that a more classic transcription factor, possibly an IrrE substrate, would link IrrE to transcription of genes specifically involved in radioresistance

Complex oligomeric structure of a truncated form of DdrA: A protein required for the extreme radiotolerance of Deinococcus.

In order to preserve their genome integrity, organisms have developed elaborate tactics for genome protection and repair. The Deinococcus radiodurans bacteria famous for their extraordinary tolerance toward high doses of radiations or long period of desiccation, possess some specific genes with unknown function which are related to their survival in such extreme conditions. Among them, ddrA is an orphan gene specific of Deinococcus genomes. DdrA, the product of this gene was suggested to be a component of the DNA end protection system. Here we provide a three-dimensional reconstruction of the Deinococcus deserti DdrA((1-160)) by electron microscopy. Although not functional in vivo, this truncated protein keeps its DNA binding ability at the wild-type level. DdrA((1-160)) has a complex three-dimensional structure based on a heptameric ring that can self-associate to form a larger molecular weight assembly. We suggest that the complex architecture of DdrA plays a role in the substrate specificity and favors an efficient DNA repair

Phénoménologie allemande, phénoménologie française

Peu de courants philosophiques ont eu une influence comparable, en France, à celle de la phénoménologie. Mais dans cette histoire désormais séculaire, on ne peut plus parler d’une simple « réception » française d’une pensée « allemande ». Certes, les oeuvres fondatrices de Husserl, Heidegger et Scheler ont fait l’objet de grandes interprétations ou relectures dont les études rassemblées ici marquent tantôt les malentendus, tantôt les écarts délibérés, les innovations et déplacements. Mais cette appropriation a été d’une telle nature qu’elle a produit des effets en retour sur la pensée allemande : ainsi la phénoménologie de l’expérience de l’étranger développée par Bernhard Waldenfels ne cache-t-elle pas sa dette vis-à-vis de l’inflexion éthique de la phénoménologie chez Levinas, et l’interrogation contemporaine en direction d’un « empirisme transcendantal » puise-t-elle aussi bien chez Levinas et Derrida vus comme « empiristes radicaux » que chez un philosophe français dont le style et le parti-pris antiphénoménologiques ne doivent pas masquer l’affinité avec certaines exigences husserliennes, Gilles Deleuze. C’est aussi à propos d’une tendance de la phénoménologie française (Levinas, Marion, Michel Henry) qu’a éclaté la mise en cause d’un « tournant théologique », que l’on peut aujourd’hui réinterroger en revenant sur les décisions originelles des fondateurs en direction d’un « athéisme méthodologique » ou d’une détermination a-théologique du « donné ». Mais c’est aussi bien le rapport de démarcation vis-à-vis de toute « anthropologie » qui peut être reconsidéré, à la lumière des oeuvres qui ont assumé une « ré-anthropologisation » de la phénoménologie de la conscience du temps (Ricoeur, Blumenberg) ou tenu qu’une « phénoménologie pure » était une impasse. L’actualité de la méthode phénoménologique, peut-être au risque d’un « tournant anthropologique », s’éprouve alors sur sa faculté à ouvrir à la compréhension fine d’objets empiriques et sociaux faussement évidents, tels que l’habitude ou la violence