Le syndrome métabolique induit par les antipsychotiques atypiques chez les patients atteints de schizophrénie

PARIS-BIUP (751062107) / SudocSudocFranceF

Selective GAS sensor based on screen-printed ZNO nanorods

International audienceScreen-printing processes offer many advantages in precise control of thickness and chemical composition of films, totally compatible with MEMS technology, and low-cost for large-scale production. This technic is widely used in the field of gas sensors since many years [1,2] but mostly used to elaborate thick films for heating resistance than sensing element based on semiconducting oxides.Metal oxide thin film sensors have been widely used for gas sensing applications thanks to their sensitivity toward a large variety of gases [3], but they suffer from a lack of selectivity.One method to overcome this problem consists in using a temperature modulation of the sensor, by changing the power consumption [4,5]. This kind of profile allows fast chemical reaction changes, and consequently fast gas sensitivities changes while maintaining the integrity of the material.This work demonstrate the feasibility of well controlled films of a ZnO nanostructured sensing material deposited by screen printing technique on microhotplate and the sensing performances by using specific profile associated to the temperature and bias current modulation

A simple process for the fabrication of parallel-plate electrostatic MEMS resonators by gold thermocompression bonding

International audienceThe present work introduces a simple and rapid process for the fabrication of MEMS resonators with electrostaticactuation and capacitive detection. Gold thermocompression is used to anchor the free-standing structure, provideelectrical connections and seal the chip to protect the structure to be released during wet etching, in a single step. Theadditional advantage of this process is the ability to simply adjust the gap of the parallel-plate capacitor through thethickness of electroplated gold. Squeeze damping is reduced by fabricating devices with increasing gaps

Water Transport by Aquaporins in the Extant Plant Physcomitrella patens1[W]

Although aquaporins (AQPs) have been shown to increase membrane water permeability in many cell types, the physiological role of this increase was not always obvious. In this report, we provide evidence that in the leafy stage of development (gametophore) of the moss Physcomitrella patens, AQPs help to replenish more rapidly the cell water that is lost by transpiration, at least if some water is in the direct vicinity of the moss plant. Three AQP genes were cloned in P. patens: PIP2;1, PIP2;2, and PIP2;3. The water permeability of the membrane was measured in protoplasts from leaves and protonema. A significant decrease was measured in protoplasts from leaves and protonema of PIP2;1 or PIP2;2 knockouts but not the PIP2;3 knockout. No phenotype was observed when knockout plants were grown in closed petri dishes with ample water supply. Gametophores isolated from the wild type and the pip2;3 mutant were not sensitive to moderate water stress, but pip2;1 or pip2;2 gametophores expressed a water stress phenotype. The knockout mutant leaves were more bent and twisted, apparently suffering from an important loss of cellular water. We propose a model to explain how the AQPs PIP2;1 and PIP2;2 delay leaf dessication in a drying atmosphere. We suggest that in ancestral land plants, some 400 million years ago, APQs were already used to facilitate the absorption of water

Commission 19: ROTATION OF THE EARTH

The IAU Commission 19 meeting during the XXVII IAU General Assembly in Rio de Janeiro was held on Wednesday 5 August 2009, sessions 3 (14:00–15:30) and 4 (16:00–17:30). It was attended by about 40 participants. The meeting was split into three sessions

A simple process for the fabrication of parallel-plate electrostatic MEMS resonators by gold thermocompression bonding

International audienceThe present work introduces a simple and rapid process for the fabrication of MEMS resonators with electrostaticactuation and capacitive detection. Gold thermocompression is used to anchor the free-standing structure, provideelectrical connections and seal the chip to protect the structure to be released during wet etching, in a single step. Theadditional advantage of this process is the ability to simply adjust the gap of the parallel-plate capacitor through thethickness of electroplated gold. Squeeze damping is reduced by fabricating devices with increasing gaps

CMS Grid Implementation Plan - 2002

This document describes the plans for integrating grid tools in CMS computing environment during 2002. The document includes: the description of the CMS software and computing environment; the analysis of the tools already produced by the Grid Projects; the summary of the tools already in use by CMS; the implementation plan for the existing tools and those foreseen by the Grid Projects within 2002, we consider useful to CMS. No effort is done here to build a long-term scenario of the CMS-Grid