Search results for "bepress|Physical Sciences and Mathematics|Earth Sciences"
showing 10 items of 2332 documents
Neighborhood Characteristics, Alcohol Outlet Density, and Alcohol-Related Calls-for-Service: A Spatiotemporal Analysis in a Wet Drinking Country
2017
Alcohol outlets have been associated with different social problems, such as crime, violence, intimate partner violence, and child maltreatment. The spatial analysis of neighborhood availability of alcohol outlets is key for better understanding of these influences. Most studies on the spatial distribution of alcohol outlets in the community have been conducted in U.S. cities, but few studies have assessed this spatial distribution in other countries where the drinking culture may differ. The aim of this study was to analyze the spatiotemporal distribution of alcohol outlets in the city of Valencia, Spain, and its relationship with neighborhood-level characteristics, as well as to examine t…
The relationship between vigilance capacity and physical exercise: a mixed-effects multistudy analysis
2019
We thank to all the participants who took part in the experiment.
Dynamic tuning of the director field in liquid crystal shells using block copolymers
2020
When an orientationally ordered system, like a nematic liquid crystal (LC), is confined on a self-closing spherical shell, topological constraints arise with intriguing consequences that depend critically on how the LC is aligned in the shell. We demonstrate reversible dynamic tuning of the alignment, and thereby the topology, of nematic LC shells stabilized by the nonionic amphiphilic block copolymer Pluronic F127. Deep in the nematic phase, the director (the average molecule orientation) is tangential to the interface, but upon approaching the temperature TNI of the nematic– isotropic transition, the director realigns to normal. We link this to a delicate interplay between an interfacial …
Worsening of pre-existing psychiatric conditions during the COVID-19 pandemic
2020
This study anonymously examined 2,734 psychiatric patients worldwide for worsening of their pre-existing psychiatric condition during the COVID-19 pandemic. Valid responses mainly from 12 featured countries indicated self-reported worsening of psychiatric conditions in 2/3rd of the patients assessed that was validated through their significantly higher scores on scales for general psychological disturbance, post-traumatic stress disorder, and depression. Female gender, feeling no control of the situation and reporting dissatisfaction with the response of the state during the COVID-19 pandemic, and reduced interaction with family and friends increased the worsening of pre-existing psychiatri…
Mental Health Impact of COVID-19: A global study of risk and resilience factors
2020
AbstractThis study anonymously screened 13,332 individuals worldwide for psychological symptoms related to Corona virus disease 2019 (COVID-19) pandemic from March 29th to April 14th, 2020. A total of n=12,817 responses were considered valid with responses from 12 featured countries and five WHO regions. Female gender, pre-existing psychiatric condition, and prior exposure to trauma were identified as notable risk factors, whereas optimism, ability to share concerns with family and friends like usual, positive prediction about COVID-19, and daily exercise predicted fewer psychological symptoms. These results could aid in dynamic optimization of mental health services during and following CO…
Formation of microbial organic carbonates during the Late Jurassic from the Northern Tethys (Amu Darya Basin, Uzbekistan): implications for Jurassic …
2020
23 pages; International audience; The Late Jurassic was a period of major global carbon cycle perturbations with episodes of anoxia leading to regional accumulation of organic matter in sediments worldwide. The Tubiegatan section (SW Gissar Mountains, Uzbekistan) located in the Northern Tethys, shows atypical organic-rich limestone and marl deposits (up to 6% of total organic carbon) marked by pronounced negative excursions of δ13Ccarb (amplitude of ca. 12‰) and δ13Corg (amplitude of ca. 4‰) recorded during the Middle Oxfordian (Transversarium Zone). A transdisciplinary approach including sedimentology, palynofacies characterization, mineralogy, organic and inorganic geochemistry was carrie…
Estimation du rayonnement solaire dans le sud-ouest de l’océan Indien et a la Réunion : modélisation régionale du climat.
2014
6 pages; International audience; On analyse ici la capacité du modèle climatique régional RegCM4 à simuler les champs radiatifs, la températurede surface et les précipitations sur un domaine couvrant l’Afrique australe et le sud-ouest de l’océan Indien (0-40°S ; 0-100°E), centré sur La Réunion. Les données produites par le modèle sont confrontées aux données d’observations CERESpour les paramètres du rayonnement (ondes courtes et longues) et GPCP pour les précipitations, et aux données desréanalyses ERA-Interim pour la température. Six simulations ont été conduites, chacune avec un schéma de convectiondifférent, afin de tester la sensibilité des résultats à la physique du modèle.Le schéma m…
Impact du climat sur la santé : modélisation régionale des poussières pour les épidémies de méningites au Sahel.
2014
6 pages; International audience; Les épidémies des méningites bactériennes constituent encore à l’heure actuelle un problème de santé publiquemajeur en Afrique de l’Ouest. Chaque année, au coeur de la saison sèche (de janvier à mars), 25 000 à 250 000 cas sontenregistrés par l’Organisation Mondiale de la Santé (OMS) dans la zone latitudinale 10-15°N, plus communément appelée« ceinture de la méningite ». L’importance des facteurs sociétaux dans l’expansion des épidémies est indéniable. Cependant,une série d’études récentes a permis de mettre en lumière le rôle important du climat. Ainsi, l’intensité des épidémies sembleliée à des conditions de circulation atmosphérique spécifiques quelques m…
Simulation des cycles diurne et annuel des pluies en Afrique du Sud par un modèle de climat régional.
2014
7 pages; International audience; On analyse ici la capacité du modèle climatique régional non-hydrostatique WRF à simuler les cycles diurnes etannuels des précipitations en Afrique australe (0°-68°W – 5°S-48°S) pour la période 1998-2006. Les simulations sontconfrontées à un réseau de cent trois stations pluviométriques disponibles au pas de temps horaire et couvrant l'Afrique duSud, et aux données GPCP-1dd à l'échelle de l'ensemble du domaine. Cinq simulations ont été réalisées : quatre utilisentdifférentes paramétrisations de la convection atmosphérique à une résolution de 0.5 x 0.5 degré, afin de tester la sensibilitédes résultats à la physique du modèle. La cinquième expérience résout ex…
Vin, produits de la vigne et alimentation à Dijon à la fin du Moyen Âge
2019
International audience