منابع مشابه
New 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...
متن کاملRainfall regimes of the Green Sahara
During the "Green Sahara" period (11,000 to 5000 years before the present), the Sahara desert received high amounts of rainfall, supporting diverse vegetation, permanent lakes, and human populations. Our knowledge of rainfall rates and the spatiotemporal extent of wet conditions has suffered from a lack of continuous sedimentary records. We present a quantitative reconstruction of western Sahar...
متن کاملDrought in the sahara: insufficient biogeophysical feedback?
5 C K H u n n ~ r f o r dJ U'ilill M a ~ ~ a n e n ~ e n i latitudinal averages obscure pertinent spa28. 141 ( 1964). I. I . I . LlcMillan. J. W~idl . .Mana,cement 28. 702 6, R , ,4, ~ l J , E~,rp,~ h ~~25 (197 1). ~ 1 , , tial and temporal variationi. Although the ~ ~ ~1 7 . (1964) 7. H . W. Bcnnetts. C . J . Cndcruood , F.. I Shier. precipitation pattern depends most 2. W. .I. F ranc~s , ibid...
متن کاملThe Megageomorphology of the Radar Rivers of the Eastern Sahara
The Eastern Sahara (Fig. i) is devoid of surface drainage -this unusual characteristic distinguishes its morphology from that of most other desert regions where running water dominates landscape development (Peel, 1939). Cyclic aridity, which is responsible for the obscuring eolian blankets and wind-erosion effects, had set in by the Pliocene-Pleistocene transition, about 2 million years ago (W...
متن کاملCervical Cancer in Sub Sahara Africa
The burden of cervical cancer is quite low in the developed countries of the world. The situation is quite the reverse in developing countries where it constitutes a major health problem. While the incidence is decreasing in the former, it is on the increase in the later. This is a source of great concern considering the fact that cervical cancer is preventable and curable at low cost with curr...
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ژورنال
عنوان ژورنال: The Geographical Journal
سال: 1911
ISSN: 0016-7398
DOI: 10.2307/1778551