42 resultados para Rance


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ICCU.

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Mode of access: Internet.

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--III. Théocrite. Virgile et Constantin le Grand, par m. J.-P. Rossignol. Francois Ier poëte. Le chevalier de Méré, ou De l'hommête homme au XVIIe siècle. Mademoiselle Aïssé. Benjamin Constant et madame de Charrière. Madame de Krüdner et ce qu'en aurait dit Saint-Évremond. M. de Rémusat. Charles Labitte. Réception de m. le comte Alfred de Vigny à lA̓cadémie française. M. Étienne. Réception de m. Vitet à lA̓cadeémie française. Lettres de Rancé. Mémoires de madame Staal-Delaunay. La̓bbé Prevost et les Bénédictins. M. Victor Cousin: Cours de lh̓istoire de la philosophie moderne. Sur lÉ̓cole françoise dA̓thènes. M. Rodolphe Topffer. Mort de m. Vinet. Études sur Pascal, par m. Vinet. Relation inédite de la dernière maladie de Louis XV. Pensées.

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Imprint varies.

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Based on the attributional reformulation of learned helplessness theory (Abramson, Seligman, & Teasdale, 1978) and Lazarus and Launier's (1978) primary-secondary appraisal theory of stress, the present study sought to examine teleworkers' reactions to their work-related problems. The role of attributions about the sources, and cognitions about the consesquences, of these problems in promoting positive adaptation was addressed. In particular, it was predicted that teleworkers who made optimistic attributions and cognitions would be more likely to employ problem-focused coping strategies and, as a result, report more positive psychological and job-related outcomes. Based on a survey sample of 192 teleworkers, the results indicated that a tendency to engage in self-blame was related to the use of emotion-focused coping strategies. In turn, there was evidence linking emotion-focused coping strategies to negative outcomes and problem-focused coping strategies to positive outcomes. The results are discussed in relation to attributional approaches to stress which highlight the importance of cognitions about the consequences of negative events. Finally, implications for the training of teleworkers are presented.

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The multifunctional properties of carbon nanotubes (CNTs) make them a powerful platform for unprecedented innovations in a variety of practical applications. As a result of the surging growth of nanotechnology, nanotubes present a potential problem as an environmental pollutant, and as such, an efficient method for their rapid detection must be established. Here, we propose a novel type of ionic sensor complex for detecting CNTs – an organic dye that responds sensitively and selectively to CNTs with a photoluminescent signal. The complexes are formed through Coulomb attractions between dye molecules with uncompensated charges and CNTs covered with an ionic surfactant in water. We demonstrate that the photoluminescent excitation of the dye can be transferred to the nanotubes, resulting in selective and strong amplification (up to a factor of 6) of the light emission from the excitonic levels of CNTs in the near-infrared spectral range, as experimentally observed via excitation-emission photoluminescence (PL) mapping. The chirality of the nanotubes and the type of ionic surfactant used to disperse the nanotubes both strongly affect the amplification; thus, the complexation provides sensing selectivity towards specific CNTs. Additionally, neither similar uncharged dyes nor CNTs covered with neutral surfactant form such complexes. As model organic molecules, we use a family of polymethine dyes with an easily tailorable molecular structure and, consequently, tunable absorbance and PL characteristics. This provides us with a versatile tool for the controllable photonic and electronic engineering of an efficient probe for CNT detection.

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Essai doctoral d'intégration présenté à la Faculté des Études Supérieures et Postdoctorales en vue de l'obtention du grade de Docteur en psychologie (D.Psy.), en psychologie clinique

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Essai doctoral d'intégration présenté à la Faculté des Études Supérieures et Postdoctorales en vue de l'obtention du grade de Docteur en psychologie (D.Psy.), en psychologie clinique

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Après un rappel des objectifs, du fonctionnement et de la méthode d’interprétation des résultats du réseau de contrôle microbiologique des zones de production conchylicoles (REMI) et du réseau d’observation de la contamination chimique (ROCCH), ce rapport inclut un bilan national et décrit le programme annuel du département de l’Ille-et-Vilaine (35). Il présente l’ensemble des résultats obtenus, en particulier l’estimation de la qualité microbiologique et chimique des zones de production de coquillages classées. Pour la deuxième année consécutive, les résultats du suivi microbiologique sont globalement bons dans le département d’Ille-et-Vilaine. Les alertes ont été également très peu nombreuses, une seule alerte en centre Rance en 2015 est recensée. L’estimation de la qualité sanitaire s’améliore en 2015 pour quelques sites. Par exemple en baie du Mont Saint- Michel où trois zones sont estimées de bonne qualité. Mais les résultats de l’année 2013 pénalisent encore certaines zones conchylicoles, notamment en Rance et en baie de Saint-Malo ou la situation reste fragile. Cela concerne notamment deux zones estimées en très mauvaise qualité. Deux autres zones, en baie de Saint-Malo et dans l’estuaire de la Rance, actuellement classées B, ne disposent pas d’assez de données pour pouvoir estimer leur qualité. La récupération des échantillons provenant de ces zones est dépendante de la collaboration des pêcheurs. Une convention avec le CDPMEM 35 (Comité Départementale des Pêches Maritimes et des Elevages Marin d’Ille-et-Vilaine) a été signée en novembre 2015 pour améliorer la situation.

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During storage of smoke-dried fish, various biochemical reactions can occur; they will result in product acceptability or rejection. To determine these changes, pH and humidity were measured and molds were counted on smoke-dried fish stored for 6 months. A sensory analysis was also conducted to assess the quality of the products. Infestations and losses linked to it have been estimated by counting the insects and weighing of fish batches over time. The variability in the quality of smoke-dried fish depending on the time of purchase and storage was also integrated with our study. Biochemical reactions are mainly oxidation phenomena which result in a decrease of pH and release of spoilage odors such as rancid odor (> 1.5/ 3) or sulfur, acid and moldy odors. The growth of mold (1- 36 CFU / g) due to the reabsorption of water by fish contributes to this olfactory and visual spoilage. Beyond 90 days of storage, smoke-dried fish bought in the dry season begins to be rejected (> 2/3), while the fish bought in the wet season is at the limit of acceptability (2/3) even at the beginning of storage. During the first 90 days of storage, the insect infestation generates between 10 and 60 % of losses. A salt content of 8 % appears to be effective against the infestation but contributes to the deterioration of the product when stored in rooms with higher than 65 % relative humidity.