Published in L'Encephale
The purpose of this review was to provide an overview of the methods used to measure social network site use among adolescents. Such a review is important given the number and diversity of sites and the prevalence of their use among adolescents. A systematic review of the literature was conducted in line with PRISMA guidelines to arrive at an analy...
Comme lors de la première vague épidémique de Covid-19 en 2020, les communications du Ministère de la santé et la presse nous alertent sur le fait que les hôpitaux de France sont saturés ou sur le point de l’être. Dans plusieurs régions françaises, des opérations chirurgicales sont déprogrammées. Les soignants, remobilisés même lorsqu’ils sont mala...
Depuis l’apparition du terme “e-réputation” dans un article scientifique en 2000 (McDonald et Slawson), force est de constater que, l’étude de ce phénomène est encore à l’état embryonnaire, et de nombreuses pistes restent à être explorées, notamment sur les approches mobilisées afin de le mesurer, de l’évaluer. L’objectif principal de nos travaux d...
This thesis aims at better understanding the solicitations generated by waves on coastal structures, focusing on breaking and broken waves. The Artha breakwater, protecting the bay of St-Jean de Luz, in the southwest of France, has been equipped with high frequency pressure sensors since 2015 allowing the collection of an extensive dataset. The cho...
Sont présentés dans ce rapport les principaux résultats des méthodes développées dans le cadre de l'OSR6. Ils correspondent principalement aux travaux issus de la thèse de Guillaume Dramais (2016-2020) en ce qui concerne les méthodologies de prélèvement de la suspension sableuse et de la thèse d'Adrien Vergne (2015-2018) en ce qui concerne les déve...
The scientific community relies more and more on computations, notably for numerical simulation and data processing. While many scientific advances were made possible by the technological progress of computers, additional performance gains are still required for larger scale projects.The race for performance is addressed with a growing hardware and...
Torrefaction is an inert thermal process (up to 300 °C) that promotes changes in the chemical and physical properties of biomass, decreasing the time and energy required for biomass conversion. In this work, an online method - TG coupled with FTIR - and elemental analysis were applied to acquire data in order to perform an experimental and numerica...
Due to their central role in ecosystems functioning and their ability to rapidly respond to environmental changes, soil microorganisms could potentially be used for monitoring ecosystems recovery in the context of degraded land restoration. However, these belowground organisms have been, to date, largely neglected. Here, we investigated fungal and ...
Chlorophyll-a fluorescence is widely used to determine the stress tolerance levels of some plant species. Measurement of chlorophyll-a fluorescence is accurate if the duration of dark adaptation is well defined and optimal Fv/Fm (maximum quantum yield of primary photochemistry/photosynthesis) is achieved. Leaf clips are usually used to darken the l...
Combined with multivariate calibration methods, near-infrared (NIR) spectroscopy is a non-destructive, rapid, precise and inexpensive analytical method to predict chemical contents of organic products. Nevertheless, one practical limitation of this approach is that performance of the calibration model may decrease when the data are acquired with di...
