Grady Bullington

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The significance of prolonged retention of barium in the appendix in an asymptomatic patient has been debated. Four patients, with retained barium in the appendix for several months after gastrointestinal barium studies, who then developed acute appendicitis, are reported and analyzed. Thirty-one patients who retained appendiceal barium longer than 72 hr(More)
The Traveling Salesman Problem (TSP) is still one of the most researched topics in computational mathematics, and we introduce a variant of it, namely the study of the closed k-walks in graphs. We search for a shortest closed route visiting k cities in a non complete graph without weights. This motivates the following definition. Given a set of k distinct(More)
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