A 24-year-old male presented with Raynaud's phenomenon, digital infarcts, salt and pepper pigmentation and characteristic facies. There was gastrointestinal involvement clinically, endoscopically as well radiologically. In view of these findings and the demonstration of anti-nuclear antibodies with a homogeneous pattern of immunofluorescence and ScL-70 antibodies, he was diagnosed as a case of ...

Rulers of weakly institutionalized states constantly fear coup attempts. The risk of coups may lead rulers to exclude certain ethnic groups from power—despite creating incentives for excluded groups to rebel against the government. But under what conditions do leaders perceive strong threats? Focusing on post-independence SubSaharan Africa, this paper argues that leaders of countries containing...