Rangelands in Saudi Arabia extend over more than 175 m.ha. (about 75% of country land area) while woodland forests occupy only 2.7 m.ha. and are limited to the south western highlands. The diversity in landscape has been reflected in terrestrial plant species diversity. Range vegetation as well as forest understory vegetation has long history of grazing by livestock and wildlife herbivores. In ...

Middle East respiratory syndrome (MERS) remains a serious international public health threat. With the goal of accelerating the development of countermeasures against MERS coronavirus (MERS-CoV), funding agencies, nongovernmental organizations, and researchers across the world assembled in Riyadh, Saudi Arabia, on November 14–15, 2015, to discuss vaccine development challenges. The meeting was ...

Middle East respiratory syndrome (MERS) remains a serious international public health threat. With the goal of accelerating the development of countermeasures against MERS coronavirus (MERS-CoV), funding agencies, nongovernmental organizations, and researchers across the world assembled in Riyadh, Saudi Arabia, on November 14–15, 2015, to discuss vaccine development challenges. The meeting was ...

Five bee-fly species (Bombyliidae, Diptera) have been listed in this paper as new to the Kingdom of Saudi Arabia. Four of the recorded species have been identified to the level of species, namely: Bombomyiadiscoidea (Fabricius, 1794), Spogostylumcandidum (Sack, 1909), Exoprosopalinearis Bezzi, 1924, and Exoprosopaminos (Meigen, 1804), while the fifth one only to genus, Desmatoneura sp. The spec...

Rhazya stricta (Apocynaceae) is an important medicinal plant found commonly in South Asia (Pakistan, India and Afghanistan) and the Middle East (i.e. Saudi Arabia, Qatar, United Arab Emirates (UAE), Iran and Iraq). It is used in local folk medicine to treat many diseases such as diabetes mellitus, certain inflammatory conditions, and helminthiasis because leaves of Rhazya stricta contains more ...

In recent years there has been increased interest in the tropical splenomegaly sn e and the subject has recently been reviewed (Pitney, 1968; Marsden and Hamilton, 1969; British Medical 7oural, 1969). Outside Africa pical splenomegaly syndromne has been described in the inhabitants of South Arabia (Fawdry, 1965), who anthropologically are caucasoid, in the Melanesians of New Guinea (Marsden et ...

Background. Enterobacteriaceae, P. aeruginosa and A. baumannii can cause serious infections, particularly among hospitalized patients. Each of these organism groups have a propensity to exhibit resistance to many of the drugs used to manage the infections that they cause. Therefore, careful monitoring of the resistance patterns they exhibit is warranted. In this study Tigecycline Evaluation Sur...

A number of voluminous, fine-grained, friable deposits have been mapped on Mars. The modes of origin for these deposits are debated. The feasibility for an origin by volcanic airfall for the friable deposits is tested using a global circulation model to simulate the dispersal of pyroclasts from candidate source volcanoes near each deposit. It is concluded that the Medusae Fossae Formation and E...

Topography and gravity measured by the Mars Global Surveyor have enabled determination of the global crust and upper mantle structure of Mars. The planet displays two distinct crustal zones that do not correlate globally with the geologic dichotomy: a region of crust that thins progressively from south to north and encompasses much of the southern highlands and Tharsis province and a region of ...