نتایج جستجو برای: mauritania
تعداد نتایج: 488 فیلتر نتایج به سال:
BACKGROUND Relict populations of Crocodylus niloticus persist in Chad, Egypt and Mauritania. Although crocodiles were widespread throughout the Sahara until the early 20(th) century, increased aridity combined with human persecution led to local extinction. Knowledge on distribution, occupied habitats, population size and prey availability is scarce in most populations. This study evaluates the...
In Mauritania, epidemiological data estimate national HIV prevalence to less than 1%. Our study is the first joint survey on HIV/AIDS conducted among prisoners in Mauritania. It is a cross-sectional survey with anonymity and informed consent. The study covered a sample of 296 prisoners enrolled in a population of 706 prisoners held in Nouakchott. The sex ratio was 14.6. The refusal rate of bloo...
In the search for an adequate technical document in field of road earthworks, and view unavailability national standards Mauritania which may be origin these documents, this article essentially aims to propose methods execution upper platform. Earthworks subgrade. As a result, study was made on platform soils two regions Mauritania, one is located south-west country (Trarza) other west (Inchiri...
Rift Valley Fever (RVF) virus (Family Bunyaviridae) is an arthropod-borne RNA virus that infects primarily domestic ruminants and occasionally humans. RVF epizootics are characterized by numerous abortions and mortality among young animals. In humans, the illness is usually characterized by a mild self-limited febrile illness, which could progress to more serious complications. RVF virus is wid...
Coastal upwelling regions have been identified as sites of enhanced CH4 emissions to the atmosphere. The coastal upwelling area off Mauritania (NW Africa) is one of the most biologically productive regions of the world’s ocean but its CH4 emissions have not been quantified so far. More than 1000 measurements of atmospheric and dissolved CH4 in the surface layer in the upwelling area off Maurita...
Africa Research Bulletin: Political, Social and Cultural SeriesVolume 60, Issue 5 p. 24018A-24019A Internal Developments MAURITANIA: Local, Legislative Polls First published: 13 June 2023 https://doi.org/10.1111/j.1467-825X.2023.11065.xRead the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare text full-text accessPlease review ou...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید