During the past thirty years, researchers have greatly sped up the naïve ray tracing algorithm. However, the methods used to measure and compare their diverse algorithms have remained ad-hoc. This makes it difficult to ...

In this article the link between the land policies of two South African prime ministers, General JBM Hertzog and BJ Vorster, is investigated. Vorster, who was prime minister from 1966 to 1978, completed the territorial ...

Sub-Saharan Africans face an increasing burden of hypertension and related cardiac and cerebrovascular morbidity and mortality, making the identification of factors leading to early vascular abnormalities imperative. METHODS ...

The prognostic significance of blood pressure (BP) variability has lately enjoyed considerable attention. The need for early markers of cardiovascular dysfunction is imperative in black South Africans who have a significant ...