The facies changes, tectonics and magmatism across the Triassic–Jurassic boundary in the southern Tethyan margin have been studied in Egypt, Sudan, Jordan and Saudi Arabia. In Saudi Arabia and Jordan an unconformable contact is recognized between the Upper Triassic and Lower Jurassic rocks. This unconformity surface is marked by the truncation of the fluvial clastics of the uppermost Triassic b...

Studies on counter-electrojet currents (CEJ) using ground data revealed that this current could occur simultaneously among locations are less than 30° longitude apart. In our work, the symmetricity of CEJ variation between west and east Southeast Asia, separated by ~25°, was preliminarily examined according to its types: morning (MCEJ) afternoon (ACEJ). Since most past studies had overlooked oc...

Mycobacterium africanum is a member of the Mycobacterium tuberculosis complex (MTBC) and an important cause of human tuberculosis in West Africa that is rarely observed elsewhere. Here we genotyped 613 MTBC clinical isolates from Ghana, and searched for associations between the different phylogenetic lineages of MTBC and patient variables. We found that 17.1% (105/613) of the MTBC isolates belo...

OBJECTIVE To review the geography and history of sleeping sickness (Human African trypanosomiasis; HAT) over the past 100 years in West Africa, to identify priority areas for sleeping sickness surveillance and areas where HAT no longer seems active. METHOD History and geography of HAT were summarized based on a review of old reports and recent publications and on recent results obtained from ...

Submit Manuscript | http://medcraveonline.com purposes [1]. A large area of the world experiences a huge contamination in groundwater due to mixing of different toxic and minerals and heavy metals either naturally or unorganized development of human civilization [2,3]. The Arsenic is one of the most important and fatal among these minerals. The high concentrations of arsenic (As) in drinking wa...

High desert dust concentrations raise concerns about adverse health effects on human populations. Based on a systematic literature review, this paper aims to learn more about the relationship between desert dust and human health in the world and to analyse the place of West Africa as a study area of interest. Papers focussing on the potential relationship between dust and health and showing qua...

Swietenia mahagoni Jacq. commonly known as West Indian Mahogany belongs to the family Meliaceae and is a valuable tree of commercial and ethno pharmacological importance. The present review aims to compile the scattered information regarding the morphological features, chemical constituents and medicinal importance of the plant. The different parts of S. mahagoni Jacq. (Leaves, bark, fruits) ar...

Although lard-can traps have been used for sampling host-seeking mosquitoes for at least a half-century, the materials from which they originally were constructed no longer are available. We therefore devised a method for constructing such devices from parts available in the ventilation industry. These traps, baited with birds and mounted near the tops of trees, were employed to monitor the hos...

Visceral leishmaniasis (VL), commonly known as kala-azar in Indian subcontinent is a major public health problem and >90% of cases are from India, Bangladesh, southern Sudan, Nepal and north-east Brazil. VL affects more than 1,00,000 persons every year in India and occurs epidemically and endemically in well-defined areas in the eastern parts of the country, mainly Bihar, West Bengal, the easte...