Graphite foams were prepared from a coal tar pitch that was partially converted into mesophase. Expandable graphite was used instead of an inert gas to ‘‘foam’’ the pitch. The resulting foam was subjected to a series of ...

Fusarium circinatum L. is an important pathogen in countries that grow and manage Pinus species. Approximately 50% or 600 000 ha of South Africa’s commercial plantations are planted to Pinus spp. and some of these are ...

King Mgolombane Sandile Ngqika led the Gaiga ama Rharhabe Xhosa in the Seventh to Ninth Frontier Wars and died during the Ninth FrontierWar (1878) after being ambushed. Several legends surrounding the death of King Sandile ...

In this study, we present not only a new and detailed anatomical description of the epaxial muscles and adjacent ligamentous and fascial structures in the African sa-vanna elephant but also a ...

In a gravity separation device, particle shape, size and density all play a role. The combination of these determines where each individual particle reports to in the viscous fluid, where particle crowding (solids to ...

No abstract available.

Kikuyu (Pennisetum clandestinum) is a highly productive pasture species that supports high stocking rates and milk production per hectare, but production per cow is low due to low nutritive value. The aim of this study ...

Frequent grazing can establish high forage value grazing lawns supporting high grazer densities, but can also produce overgrazed grass communities with unpalatable or low grass basal cover, supporting few grazers. Attempts ...

The end of apartheid created great expectations for the majority of South Africans in terms of political, but also social and economic change. At first glance, significant progress has undoubtedly taken place, beginning ...

A recent anthropological critique of the archaeology and cultural heritage management of Great Zimbabwe refers to “the silence of unheard voices and untold stories,” “the unrepresented pasts of local communities,” and “the ...