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5 11 2006 , Marie-Christine Pouder, Hélène Brunschwig De la référence à l'objet à l'objet « (p )référentiel », la thérapie du petit Paul Nothing Cet article est à double voix. La première partie présente quatre séances de psychothérapie familiale enregistrées en cabinet libéral et analysées à partir de deux problématiques qui intéressent le premier auteur, psycholinguiste : la question de l'acquisition du langage dans le cadre de séances remédiatives, et la question de l'objet préférentiel dans les prises en charge d'enfants affectés de problèmes langagiers. La seconde est une réflexion du second auteur, psychanalyste, sur l'utilisation des objets en thérapie d'enfant, et notamment lors de cette thérapie familiale d'un jeune enfant atteint de bégaiement. Les auteurs adoptent un point de vue énonciatif et pragmatique qui permet de rendre compte de certains éléments intersubjectifs de la communication et de cadrer des données plus spécifiquement morpho-syntaxiques et lexicales.
9 12 2006 , Michael Houseman Vers un modèle anthropologique de la pratique psychothérapeutique Nothing S'inscrivant à l'encontre des rapprochements évocateurs mais souvent trop approximatifs entre la psychothérapie et le rituel, l'auteur propose un certain nombre de perspectives anthropologiques sur la pratique thérapeutique. Celle-ci est envisagée comme faisant intervenir trois contextes relationnels enchâssés les uns dans les autres : la participation du client et du thérapeute à leurs réseaux sociaux respectifs, la relation thérapeutique qui se met en place entre le client et le thérapeute, et les dispositifs misent en œuvre au cours du travail de thérapie qui fournissent au client les conditions du changement relationnel. L'analyse cherche à montrer les façons que la psychothérapie (et plus précisément la thérapie systémique) est plus complexe que ce que l'on entend habituellement par « rituel », « jeu », « spectacle » ou « interaction ordinaire » : c'est une mise en relation spécifique de ces différentes modalités d'interaction qui lui donne une forme et une logique distinctives.
5 1 2007 , Philippe Vernier Les émotions, un point de vue biologique. Nothing
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1 1 199 Nadal, Jean-Pierre; Parga, Nestor Information Transmission by Networks of Non-Linear Neurons International Journal of Neural Systems We investigate the consequences of maximizing information transfer in a simple neural network, with bounded and invertible transfer functions. In the case of a vanishing additive output noise, and an even smaller input noise, the main result is that maximization of information (over receptive fields and transfer functions) leads to a factorial code-hence to the same solution as required by the redundancy reduction principle of Barlow.
1 1 1982 Nadal, Jean-Pierre; Derrida, B.; Vannimenus, J. Directed lattice animals in 2 dimensions: numerical and exact results Journal de Physique We study several models of directed animals (branched polymers) on a square lattice. We present a transfer matrix method for calculating the properties of these directed animals when the lattice is a strip of finite width. Using the phenomenological renormalization, we obtain accurate predictions for the connective constants and for the exponents describing the length and the width of large animals (ν∥= 9/11 and ν⊥= 1/2). For a particular model of site animals, we present and prove some exact results that we discovered numerically concerning the connective constant and the eigenvector of the transfer matrix when the eigenvalue is one. We also propose a conjecture for the number of animals which generalizes the expression guessed by Dhar, Phani and Barma.
1 1 1983 Hakim, V.; Nadal, Jean-Pierre Exact results for 2D directed animals on a strip of finite width Journal of Physics A: Mathematical and General Proves a conjecture giving the exact number of directed animals of s sites with any root, on a strip of finite width of a square lattice. The authors also rederive more simply some previous results concerning the connective constant and particular eigenvectors of the transfer matrix.
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31 10 2016 Shuanglong Lin, Miao Wang, Li Liu, Yinghua Liang, Wenquan Cui, Zisheng Zhang, Nan Yun Enhanced Visible Light Photocatalytic Degradation of Organic Pollutants over Flower-Like Bi₂O₂CO₃ Dotted with Ag@AgBr. Materials (Basel, Switzerland) A facile and feasible oil-in-water self-assembly approach was developed to synthesize flower-like Ag@AgBr/Bi₂O₂CO₃ micro-composites. The photocatalytic activities of the samples were evaluated through methylene blue degradation under visible light irradiation. Compared to Bi₂O₂CO₃, flower-like Ag@AgBr/Bi₂O₂CO₃ micro-composites show enhanced photocatalytic activities. In addition, results indicate that both the physicochemical properties and associated photocatalytic activities of Ag@AgBr/Bi₂O₂CO₃ composites are shown to be dependent on the loading quantity of Ag@AgBr. The highest photocatalytic performance was achieved at 7 wt % Ag@AgBr, degrading 95.18% methylene blue (MB) after 20 min of irradiation, which is over 1.52 and 3.56 times more efficient than that of pure Ag@AgBr and pure Bi₂O₂CO₃, respectively. Bisphenol A (BPA) was also degraded to further demonstrate the degradation ability of Ag@AgBr/Bi₂O₂CO₃. A photocatalytic mechanism for the degradation of organic compounds over Ag@AgBr/Bi₂O₂CO₃ was proposed. Results from this study illustrate an entirely new approach to fabricate semiconductor composites containing Ag@AgX/bismuth (X = a halogen).
1 1 2017 Nasim Mohammadnezhad, Amir Abbas Matin, Naser Samadi, Ashkan Shomali, Hassan Valizadeh Ionic Liquid-Bonded Fused Silica as a New Solid-Phase Microextraction Fiber for the Liquid Chromatographic Determination of Bisphenol A as an Endocrine Disruptor. Journal of AOAC International Linear ionic liquid bonded to fused silica and its application as a solid-phase microextraction fiber for the extraction of bisphenol A (BPA) from water samples were studied. After optimization of microextraction conditions (15 mL sample volume, extraction time of 40 min, extraction temperature of 30 ± 1°C, 300 μL acetonitrile as the desorption solvent, and desorption time of 7 min), the fiber was used to extract BPA from packed mineral water, followed by HPLC-UV on an XDB-C18 column (150 × 4.6 mm id, 3.5 μm particle) with a mobile phase of acetonitrile-water (45 + 55%, v/v) and flow rate of 1 mL . min-1). A low LOD (0.20 μg . L-1) and good linearity (0.9977) in the calibration graph indicated that the proposed method was suitable for the determination of BPA.
1 1 2017 L Du, W Sun, X M Li, X Y Li, W Liu, D Chen DNA methylation and copy number variation analyses of human embryonic stem cell-derived neuroprogenitors after low-dose decabromodiphenyl ether and/or bisphenol A exposure. Human & experimental toxicology The polybrominated diphenyl ether flame retardants decabromodiphenyl ether (BDE-209) and bisphenol A (BPA) are environmental contaminants that can cross the placenta and exert toxicity in the developing fetal nervous system. Copy number variants (CNVs) play a role in a number of genetic disorders and may be implicated in BDE-209/BPA teratogenicity. In this study, we found that BDE-209 and/or BPA exposure decreased neural differentiation efficiency of human embryonic stem cells (hESCs), although there was a >90% induction of neuronal progenitor cells (NPCs) from exposed hESCs. However, the mean of CNV numbers in the NPCs with BDE-209 + BPA treatment was significantly higher compared to the other groups, whereas DNA methylation was lower and DNA methyltransferase(DNMT1 and DNMT3A) expression were significantly decreased in all of the BDE-209 and/or BPA treatment groups compared with the control groups. The number of CNVs in chromosomes 3, 4, 11, 22, and X in NPCs with BDE-209 and/or BPA exposure was higher compared to the control group. In addition, CNVs in chromosomes 7, 8, 14, and 16 were stable in hESCs and hESCs-derived NPCs irrespective of BDE-209/BPA exposure, and CNVs in chromosomes 20 q11.21 and 16 p13.11 might be induced by neural differentiation. Thus, BDE-209/BPA exposure emerges as a potential source of CNVs distinct from neural differentiation by itself. BDE-209 and/or BPA exposure may cause genomic instability in cultured stem cells via reduced activity of DNA methyltransferase, suggesting a new mechanism of human embryonic neurodevelopmental toxicity caused by this class of environmental toxins.
