Urticarial vasculitis is an uncommon from of cutaneous vasculitis and is extremely rare to present during childhood, especially in boys. It typically presents with multiple systemic inflammatory manifestations. Skin biopsy is needed to confirm the diagnosis. In this report a 10 years old Saudi boy with prolonged urticarial rash, fever, and arthritis is presented. His skin biopsy was consistent ...

The Ellipsoid algorithm was developed by (formerly) Soviet mathematicians (Shor (1970), Yudin and Nemirovskii (1975)). Khachian (1979) proved that it provides a polynomial time algorithm for linear programming. The average behavior of the Ellipsoid algorithm is too slow, making it not competitive with the simplex algorithm. However, the theoretical implications of the algorithm are very importa...

Electronic equipment used in Army, have generally been developed on a hierarchical or modular structure. Repair and maintenance of these equipment also follow a well defined hierarchy. Though number of fault diagnosis techniques are in use in army, there is a need for having a fault diagnosis technique that could be used at any hierai'chy of maintenance. Keeping this requirement in mind, "Analo...

231 words) We report results of a series of experiments on decision-making in the presence of irreducibly imprecise probabilities. Subjects faced decisions among actions where the payoffs depend on the probability of drawing balls from an urn whose composition was not fully known. Consistent with the vagueness avoidance hypothesis, Decision Makers (DMs) displayed systematic preferences for risk...