منابع مشابه
Dust and biological aerosols from the Sahara and Asia influence precipitation in the western U.S.
Winter storms in California's Sierra Nevada increase seasonal snowpack and provide critical water resources and hydropower for the state. Thus, the mechanisms influencing precipitation in this region have been the subject of research for decades. Previous studies suggest Asian dust enhances cloud ice and precipitation, whereas few studies consider biological aerosols as an important global sour...
متن کاملEvidence of rift valley fever seroprevalence in the Sahrawi semi-nomadic pastoralist system, Western Sahara
BACKGROUND The increasing global importance of Rift Valley fever (RVF) is clearly demonstrated by its geographical expansion. The presence of a wide range of host and vector species, and the epidemiological characteristics of RVF, have led to concerns that epidemics will continue to occur in previously unaffected regions of Africa. The proximity of the Sahrawi territories of Western Sahara to e...
متن کاملAfrican humid periods triggered the reactivation of a large river system in Western Sahara
The Sahara experienced several humid episodes during the late Quaternary, associated with the development of vast fluvial networks and enhanced freshwater delivery to the surrounding ocean margins. In particular, marine sediment records off Western Sahara indicate deposition of river-borne material at those times, implying sustained fluvial discharges along the West African margin. Today, howev...
متن کاملEthnoveterinary of Sahrawi pastoralists of Western Sahara: camel diseases and remedies
BACKGROUND Pastoral populations around the world hold complex and detailed ethnoveterinary knowledge, essential for the survival of their herds and securing their livelihood. In recent decades, several studies have given attention to local veterinary remedies and practices and their validation, and to the local conceptualization of livestock diseases. Despite this, relatively little has been re...
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: Scientia Militaria - South African Journal of Military Studies
سال: 2012
ISSN: 2224-0020,1022-8136
DOI: 10.5787/29-0-189