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Matrix operations, like matrix multiplication, are commonly used in almost all areas of scientific research. Matrix multiplication has significant application in the areas of graph theory, numerical algorithms, signal processing, and digital control. Matrix multiplication is a computationally intensive problem, especially the design and efficient… (More)
Chylous mesenteric and retroperitoneal cysts of developmental origin are unusual and rarely diagnosed with accuracy before laparotomy. They may produce compression of viscera and may rupture with haemorrhage. This is the first report of four cases, with varied presentations, from an African country.
Tumoral calcinosis is an uncommon lesion of obscure aetiology often misdiagnosed. It occurs predominantly in the Negroid and African races, but there is paucity of African literature. This is the first report of eleven cases amongst Somalis and ten Ethiopians, involving only the greater trochanteric, gluteal and iliac crest regions. The clinical,… (More)