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Presents an article which addresses three major issues regarding the political change and fears in South Africa. The direction the Afrikaner-dominated government of F.W. de Klerk has decided to move in; Chances a negotiated settlement to the country's problems can be reached; Which theoretical perspectives enables us to answer questions; Fears of prominent Afrikaners; Persistence of racism and group identity; Minority white and `black majority rule'; More.

To determine the ability to detect thrombus by angiography, angioscopy was performed before angiography in patients undergoing interventional procedures and the data collected in a blinded fashion. These data demonstrated that the sensitivity of angiography to detect white thrombus was 50% and the specificity was 95%, whereas the sensitivity and specificity to detect red thrombus was 100%, respectively; the positive and negative predictive value of detecting thrombus in general was 89% and 83%, respectively. [ABSTRACT FROM AUTHOR]

This study demonstrates that plaque disruption and thrombus are absent in a considerable number of patients with unstable angina and that culprit lesion morphologies as assessed by angioscopy may differ among the various clinical subsets of patients. Although plaque disruption and thrombus undoubtedly play an important role in the pathogenesis of unstable angina, alternative mechanisms may be responsible for ischemia in some patients. [ABSTRACT FROM AUTHOR]