30 research outputs found
COVID-19 symptoms at hospital admission vary with age and sex: results from the ISARIC prospective multinational observational study
Background:
The ISARIC prospective multinational observational study is the largest cohort of hospitalized patients with COVID-19. We present relationships of age, sex, and nationality to presenting symptoms.
Methods:
International, prospective observational study of 60â109 hospitalized symptomatic patients with laboratory-confirmed COVID-19 recruited from 43 countries between 30 January and 3 August 2020. Logistic regression was performed to evaluate relationships of age and sex to published COVID-19 case definitions and the most commonly reported symptoms.
Results:
âTypicalâ symptoms of fever (69%), cough (68%) and shortness of breath (66%) were the most commonly reported. 92% of patients experienced at least one of these. Prevalence of typical symptoms was greatest in 30- to 60-year-olds (respectively 80, 79, 69%; at least one 95%). They were reported less frequently in children (â€â18 years: 69, 48, 23; 85%), older adults (â„â70 years: 61, 62, 65; 90%), and women (66, 66, 64; 90%; vs. men 71, 70, 67; 93%, each Pâ<â0.001). The most common atypical presentations under 60 years of age were nausea and vomiting and abdominal pain, and over 60 years was confusion. Regression models showed significant differences in symptoms with sex, age and country.
Interpretation:
This international collaboration has allowed us to report reliable symptom data from the largest cohort of patients admitted to hospital with COVID-19. Adults over 60 and children admitted to hospital with COVID-19 are less likely to present with typical symptoms. Nausea and vomiting are common atypical presentations under 30 years. Confusion is a frequent atypical presentation of COVID-19 in adults over 60 years. Women are less likely to experience typical symptoms than men
Experimental thermo-hydric study to simulate natural weathering conditions
International audienc
Data from: Colonization and extinction dynamics among the plant species at tree bases in Paris (France)
1. In cities, trees growing along streets could play an important ecological role for spontaneous plants that grow at their bases. For example, these trees could represent corridors that allow species to move in the urban matrix by potentially connecting large green spaces (e.g., parks, gardens, etc.) We considered sets of urban trees in 15 streets as metapopulations for 15 plant species. Our objective was to determine the factors influencing the dynamics of colonization and extinction of populations based on the distance of the streets from green spaces and the biological traits of each species. 2. The species in 1,324 tree bases of the Bercy district of Paris were surveyed annually from 2009 to 2015. For each species and each street, we used SPOMSIM software to identify the best-fit metapopulation model: the propagule rain model (PRM), Levins model (LM), and the PRM and LM with a fixed extinction or a rescue effect. 3. The results demonstrated that the species more often conformed to the PRM in streets near green spaces, which suggested that green spaces could act as the sources for the populations in those streets. Species with seeds with long-term persistence more often conformed to the PRM, indicating that a soil seed bank helps species invade entire streets. Finally, a higher percentage of species with a short height conformed to models with a rescue effect, which indicated that those species resisted the effects of weeding by the city technical services more often than taller species. 4. Synthesis and applications. This study showed how the biological traits of species and the geography of the district determine the dynamics of the plants in the streets, and the results may provide important information for biodiversity management in cities
Data of the results of SPOMSIM modeling
Features of the 15 species and 15 streets for which population dynamics was modeled and SPOMSIM modeling results
Session 4 : Mémoire, héritage et perspectives comparées. : 1964 : La dictature brésilienne et son legs (Colloque international, EHESS, Paris 2014).
Fonds audiovisuel issu d'une coopĂ©ration entre MĂŽnica Raisa Schpun (EHESS) et le programme "ESCoM-AAR" (Equipe SĂ©miotique Cognitive et nouveaux MĂ©dias - Archives Audiovisuelles de la Recherche; 2007 - 2016).LâannĂ©e 2014 marque le 50e anniversaire du coup dâĂtat militaire qui renversa le gouvernement dĂ©mocratique du prĂ©sident brĂ©silien JoĂŁo Goulart et fut le dĂ©but de vingt-et-un ans de dictature militaire (1964-85). Les deux dĂ©cennies suivantes sâaccompagnĂšrent de limitations rigoureuses des droits civiques, ainsi que de censures de la presse, du thĂ©Ăątre et du cinĂ©ma. On y observa un usage systĂ©matique de la torture afin de rĂ©duire lâopposition au silence, et des mesures appuyĂ©es par lâĂtat qui causĂšrent la mort et la disparition de centaines dâopposants au rĂ©gime.Le contexte actuel de retour mĂ©moriel, avec la mise en place des Commissions de la vĂ©ritĂ©, nous invite Ă revisiter cette pĂ©riode et la trĂšs vaste littĂ©rature produite sur la question par des historiens, des sociologues, des politologues aux approches les plus diverses. Le dĂ©bat reste intense, au BrĂ©sil mais aussi Ă lâĂ©tranger, dans les milieux du « brĂ©silianisme ».Ce colloque international de deux jours sur la dictature brĂ©silienne est organisĂ© par la revue BrĂ©sil(s). Sciences humaines et sociales et coĂŻncide avec la publication dâun dossier sur ce sujet (numĂ©ro 5, mai 2014), coordonnĂ© par James Green (Brown University).Ces journĂ©es seront organisĂ©es autour de quatre thĂšmes : la nature du rĂ©gime, la production culturelle, la rĂ©sistance et les droits de lâhomme, et enfin, mĂ©moire, heritage et perspectives comparĂ©es
Session 4 : Mémoire, héritage et perspectives comparées. : 1964 : La dictature brésilienne et son legs (Colloque international, EHESS, Paris 2014).
Fonds audiovisuel issu d'une coopĂ©ration entre MĂŽnica Raisa Schpun (EHESS) et le programme "ESCoM-AAR" (Equipe SĂ©miotique Cognitive et nouveaux MĂ©dias - Archives Audiovisuelles de la Recherche; 2007 - 2016).LâannĂ©e 2014 marque le 50e anniversaire du coup dâĂtat militaire qui renversa le gouvernement dĂ©mocratique du prĂ©sident brĂ©silien JoĂŁo Goulart et fut le dĂ©but de vingt-et-un ans de dictature militaire (1964-85). Les deux dĂ©cennies suivantes sâaccompagnĂšrent de limitations rigoureuses des droits civiques, ainsi que de censures de la presse, du thĂ©Ăątre et du cinĂ©ma. On y observa un usage systĂ©matique de la torture afin de rĂ©duire lâopposition au silence, et des mesures appuyĂ©es par lâĂtat qui causĂšrent la mort et la disparition de centaines dâopposants au rĂ©gime.Le contexte actuel de retour mĂ©moriel, avec la mise en place des Commissions de la vĂ©ritĂ©, nous invite Ă revisiter cette pĂ©riode et la trĂšs vaste littĂ©rature produite sur la question par des historiens, des sociologues, des politologues aux approches les plus diverses. Le dĂ©bat reste intense, au BrĂ©sil mais aussi Ă lâĂ©tranger, dans les milieux du « brĂ©silianisme ».Ce colloque international de deux jours sur la dictature brĂ©silienne est organisĂ© par la revue BrĂ©sil(s). Sciences humaines et sociales et coĂŻncide avec la publication dâun dossier sur ce sujet (numĂ©ro 5, mai 2014), coordonnĂ© par James Green (Brown University).Ces journĂ©es seront organisĂ©es autour de quatre thĂšmes : la nature du rĂ©gime, la production culturelle, la rĂ©sistance et les droits de lâhomme, et enfin, mĂ©moire, heritage et perspectives comparĂ©es
Dispersion des métaux de la mine au lagon : rÎle du compartiment atmosphérique et dispersion au sein du compartiment biotique dulçaquicole et estuarien. Rapport scientifique final
- Ce rapport du programme DMML « Dispersion des mĂ©taux de la mine au lagon » constitue le volume 1 (sur 4) du programme intĂ©grĂ© « Dispersion et exposition humaine aux mĂ©taux en Nouvelle-CalĂ©donie » composĂ© de 3 projets (DMML, Dynamine, MĂ©texpo) Ă©tudiant les mĂ©taux et leur toxicitĂ© sur des sites pilotes similaires.- Le programme DMML a proposĂ© de caractĂ©riser le potentiel de dispersion des Ă©lĂ©ments mĂ©talliques traces (ETM) Ni, Cr, Co et Mn au sein des compartiments abiotiques (atmosphĂšre et pĂ©dosphĂšre) et dâĂ©valuer la contamination mĂ©tallique dans le compartiment biotique de lâhydrosphĂšre ainsi que de dĂ©terminer les mĂ©canismes de transferts trophiques. - La caractĂ©risation des flux dâETM au sein de lâhydrosphĂšre est rĂ©alisĂ©e dans le programme « Dynamine »