Mesures (Sahara — Sahel)
نویسندگان
چکیده
منابع مشابه
Wars Without Beginning or End: Violent Political Organizations and Irregular Warfare in the Sahel-Sahara
This article examines the structure and spatial patterns of violent political organizations in the Sahel-Sahara, a region characterized by growing political instability over the last 20 years. Drawing on a public collection of disaggregated data, the article uses network science to represent alliances and conflicts of 179 organizations that were involved in violent events between 1997 and 2014....
متن کاملWet phases in the Sahara/Sahel region and human migration patterns in North Africa.
The carbon isotopic composition of individual plant leaf waxes (a proxy for C(3) vs. C(4) vegetation) in a marine sediment core collected from beneath the plume of Sahara-derived dust in northwest Africa reveals three periods during the past 192,000 years when the central Sahara/Sahel contained C(3) plants (likely trees), indicating substantially wetter conditions than at present. Our data sugg...
متن کاملThe role of the Sahara Low in summertime Sahel rainfall variability and change in the CMIP3 models
Projections for 21 century changes in summertime Sahel precipitation differ greatly across models in the CMIP3 dataset, and cannot be explained solely in terms of discrepancies in the projected anomalies in global SST. This study shows that an index describing the low-level circulation in the north Atlantic-African region, namely the strength of the low-level Saharan Low, correlates with Sahel ...
متن کاملNew July Sahara
Awareness and knowledge about HIV mother-to-child transmission (MTCT) and preventive measures in different population groups and health personnel were analysed in future intervention areas in western Uganda and southwestern Tanzania. In Uganda, a total of 751 persons (440 clients of antenatal and outpatient clinics, 43 health workers, 239 villagers, 29 traditional birth attendants) and in Tanza...
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ژورنال
عنوان ژورنال: Encyclopédie berbère
سال: 2010
ISSN: 1015-7344,2262-7197
DOI: 10.4000/encyclopedieberbere.575