L’évaluation en éducation relative à l’environnement : une dynamique en marche

Réfléchir à l’évaluation en éducation relative à l’environnement (ERE) est certes difficile et complexe puisque c’est se poser la question de l’évaluation du savoir-être manifesté dans les comportements. C’est pourquoi il ne peut être question de livrer des réponses toutes faites sous forme de grilles d’évaluation, d’indicateurs de réussite etc., mais d’amener les acteurs à les élaborer dans une démarche individuelle et collective adaptée à leur projet personnel et local. Il s’agirait plutôt ..

Transformation of cellulose into non-ionic surfactants in a one pot catalytic process

Alkyl glucosides surfactants have been synthesized by a cascade process which involves the methanolysis of cellulose into methyl glucosides followed by the transacetalization with n-octanol. The first step was carried out using methanol as solvent and acid catalysts (such as inorganic acids, heteropolyacids, ion-exchange resins or modified carbon materials). Subsequently long chain alkyl glucosides can be obtained in a second step by transacetalization which involves the reaction of methyl glucosides with a fatty alcohol using the same acid catalyst. The overall process was performed under mild conditions. Amorphous sulfonated carbon catalyst achieved the best results for the complete conversion of cellulose in methanol at 200 οC with yields higher than 80 % of methyl α,β-glucopyranosides. Moreover, this material containing -SO3H groups is optimal to perform the second step obtaining octyl and decyl glucosides in yields higher than 73 % at 120 οC. In addition, catalyst reusability has been tested showing that sulfonated carbon catalyst (C-SO3H) can be reused with only a slightly decrease of its activity after four consecutive cycles.Financial support by Consolider-Ingenio 2010 (Project Multicat), Spanish MICINN Project (CTQ-2015-67592-P), Generalitat Valenciana (Prometeo Program) and Program Severo Ochoa is gratefully acknowledged.Climent Olmedo, MJ.; Corma Canós, A.; Iborra Chornet, S.; Martínez Silvestre, S. (2016). Transformation of cellulose into non-ionic surfactants in a one pot catalytic process. ChemSusChem. 9(24):119-128. https://doi.org/10.1002/cssc.201600977S11912892

Dermatomycoses non candidosiques (épidémiologie et contrôle)

LIMOGES-BU Médecine pharmacie (870852108) / SudocLYON1-BU Santé (693882101) / SudocSudocFranceF

Influence des troubles cognitifs sur la qualité de vie des patients schizophrènes

REIMS-BU Santé (514542104) / SudocPARIS-BIUM (751062103) / SudocSudocFranceF

A track-to-track association method for automotive perception systems

Recent and future driver assistance systems use more and more sensors, that have individual tracking modules. For target tracking, it becomes necessary to find techniques to manage as simply as possible the use of a great number of independent and heterogeneous sensors, at the different stages of the process. This paper presents a modular highlevel track-fusion architecture for a multisensor environment. This architecture allows the variation of the number and the types of the used sensors with no major change in the tracking algorithm. The paper also tackles the multisensor track-to-track association issue with a new algorithm based on a particular track-to-track distance computation. An example of target tracking method is shown to make use of the proposed architecture and the track-to-track association algorithm

La part du rêve dans le dépistage précoce

À partir d’une situation clinique, différents professionnels d’un Centre d’Action Médico-Sociale Précoce s’interrogent sur l’accompagnement des parents des enfants inscrits dans une démarche médicale de dépistage précoce. Ils émettent l’hypothèse selon laquelle, pour ces enfants stigmatisés « handicapés potentiels », un travail entre les parents et l’équipe pluridisciplinaire de l’institution, sur le modèle de la « rêverie maternelle » de Bion, peut soutenir la capacité de rêverie parentale fragilisée. Ainsi, ce dispositif médical devient aussi un lieu de contribution aux interactions parents-enfant

The potency of γ-valerolactone as bio-sourced polar aprotic organic medium for the electrocarboxlation of furfural by CO2

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