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Background and Purpose—Whether all acute stroke patients with large vessel occlusion need to undergo intravenous thrombolysis before mechanical thrombectomy (MT) is debated as (1) the incidence of (...)
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Background : Major depressive disorder (MDD) is a serious public health problem with high lifetime prevalence (4.4-20%) in the general population. The monoamine hypothesis is the most widespread (...)
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Aging is characterized by a cognitive decline of fluid abilities and is also associated with electrophysiological changes. The vascular hypothesis proposes that brain is sensitive to vascular (...)
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Increasing consumption of engineered nanoparticles and occupational exposure to novel, ultrafine airborne particles during the last decades has coincided with deterioration of sperm parameters (...)
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Le déploiement des ENT dans les établissements du secondaire en France vise notamment à étendre l’école hors de ses murs en associant plus étroitement les parents. Cette ouverture a-t-elle des (...)
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Severe neurological deficit (SND) is a rare but major complication of pyogenic vertebral osteomyelitis (PVO). We aimed to determine the risk factors and the variables associated with clinical (...)
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The precise sulcogyral localization of cortical lesions is mandatory to improve communication between practitioners and to predict and prevent post-operative deficits. This process, which assumes (...)
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Numéro thématique coordonné par Philippe Cottier et Xavière Lanéelle, Centre de Recherche en Éducation de Nantes. Notre société contemporaine est marquée par la place qu’y occupent les technologies (...)
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Ce chapitre examine les usages numériques déployés par les lycéens dans le cadre de leur travail personnel. Il se propose notamment d’étudier les liens entre ces pratiques et leur situation personnelle (...)
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Dans un contexte où les jeunes sont de forts consommateurs de ressources numériques, les TPE nous ont paru constituer un « candidat idéal » à l’étude des usages numériques scolaires. Ils nécessitent en (...)
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Ce chapitre porte sur les activités de professeurs de lycées menées avec la médiation d’instruments numériques. Il s’agit d’étudier en particulier comment les professeurs sont engagés dans des activités (...)
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On the cusp of massive commercialization of nanotechnology-enhanced products and services, the physical and chemical analysis of nanoparticles in human specimens merits immediate attention from (...)
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En ce début de XXIe siècle, le lycée n’échappe pas à un mouvement généralisé de propagation massive et accélérée de technologies numériques. Ordinateurs, tableaux interactifs, tablettes (...)
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With the continuing development of nanomaterials, the assessment of their potential impact on human health, and especially human reproductive toxicity, is a major issue. The testicular (...)
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Ce travail s’intéresse aux pratiques d’un ENT par les familles de collégiens. Ces portails en cours de généralisation dans tous les établissements secondaires français sont notamment censés rapprocher (...)
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Amorphous silica is a particularly interesting material because of its inertness and chemical stability. Silica nanoparticles have been recently developed for biomedical purposes but their (...)
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Carbon nanotubes (CNT) cytotoxicity is frequently investigated using in vitro classical toxicology assays. However these cellular tests, usually based on the use of colorimetric or fluorimetric (...)
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Carbon nanotubes (CNT) and nano-graphite (NG) are graphene-based nanomaterials which share exceptional physicochemical properties, but whose health impacts are unfortunately still not well (...)
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The biological response to pristine and annealed multi-walled carbon nanotubes (MWCNT) was assessed on murine macrophages (RAW 264.7). First, the physicochemical features of the as-produced MWCNT (...)
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Les propriétés exceptionnelles des nanotubes de carbone (NTC) promettent de nombreuses applications dans des domaines aussi variés que les matériaux composites, la microélectronique ou la biomédecine. (...)
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Due to their exceptional physiochemical properties, carbon nanotubes (CNT) raise great industrial and research interests in fields as diverse as biomedicine, microelectronics, or composites. (...)
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Due to their exceptional physiochemical properties, carbon nanotubes (CNT) raise great industrial and research interests in fields as diverse as biomedicine, microelectronics, or composites. (...)
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Silicon carbide (SiC) an industrial-scale product manufactured through the Acheson process, is largely employed in various applications. Its toxicity has been poorly investigated. Our study aims (...)
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Boehmite (γ-AlOOH) nanoparticles (NPs) are used in a wide range of industrial applications. However, little is known about their potential toxicity. This study aimed at a better understanding of (...)
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Acid functionalization has been considered as an easy way to enhance the dispersion and biodegradation of carbon nanotubes (CNT). However, inconsistencies between toxicity studies of acid (...)
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Silica nanoparticles are particularly interesting for medical applications because of the high inertness and chemical stability of silica material. However, at the nanoscale their innocuousness (...)
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The significant expansion in the use of nanoparticles and submicron particles during the last 20 years has led to increasing concern about their potential toxicity to humans and particularly (...)
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Les caractéristiques mécaniques et électroniques remarquables des nanotubes de carbone (NTC) attirent de nombreux industriels. Cependant, leur faible rayon hydrodynamique les classe en tant que (...)
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1618 lycéens ont été interrogés sur leurs pratiques numé-riques, leurs manières de travailler et le temps qu’ils y consacrent. Les ré-sultats de cette recherche mettent en évidence le rôle pondéré joué (...)
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De nombreuses recherches ont montré les limites des opérations de dissémination massive de terminaux numériques en milieu scolaire. Nous analysons ici le discours de 18 enseignants sur leurs (...)
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Biomolecules can be adsorbed on nanoparticles (NPs) and degraded during in vitro toxicity assays. These artifactual phenomena could lead to misinterpretation of biological activity, such as (...)
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•De nombreuses recherches ont montré les limites des opérations de dissémination massive de terminaux numériques en milieu scolaire. Nous analysons ici le discours de 18 enseignants sur leurs (...)
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Le déploiement d’un ENST qui s’adresse notamment aux parents nous amène à poser la question des usages et des pratiques que ce public non captif est amené à développer. Ce travail, fondé sur une (...)
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Purpose : Age-related fMRI changes have not been extensively studied for language, whereas important adaptive mechanisms have been seen in other cognitive fields. This study examined age-related (...)
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PURPOSE : Positron emission tomography (PET) imaging of brain amyloid load has been suggested as a core biomarker for Alzheimer’s disease (AD). The aim of this study was to test the feasibility of (...)
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Background : Micrometric and nanometric particles are increasingly used in different fields and may exhibit variable toxicity levels depending on their physicochemical characteristics. The aim of (...)
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Silicon carbide is an extremely hard, wear resistant, and thermally stable material with particular photoluminescence and interesting biocompatibility properties. For this reason, it is largely (...)
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The relationship between particles’ physicochemical parameters, their uptake by cells and their degree of biological toxicity represent a crucial issue, especially for the development of new (...)
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BACKGROUND : For many years, researchers have been interested in investigating airflow and aerosol deposition in the nasal cavities. The nasal airways appear to be a complex geometrical system. (...)
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no abstract
Technologies de l’information et de la communication pour l’enseignement et la formation