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In a recent paper, Adlakha and Kowalski [Omega, 31, 205–211] present a heuristic algorithm for solving fixed-charge transportation problem with a fixed cost between an origin and destination pair which is independent of the amount transported, along with a variable cost that is proportional to the amount shipped. The method though simple is designed for only solving small problems and does not provide...
Identification of genetic mechanisms that promote the onset of stroke and transient cerebral ischemic attack symptoms in carotid atherosclerotic patients would further our understanding of the pathophysiology of this disease and could lead to new pharmacological and molecular therapies. Using Affymetrix Human Genome 230 GeneChip set, the present study evaluated the gene expression differences in geometrically...
Scope and Purpose--Multicommodity network flow problems are an important class of linear programming (LP) problems with many practical applications, some of which require that the flows be integer-valued. Very efficient computational techniques have been developed to determine the optimal flows for single commodity flow problems. In addition, the optimal flows are guaranteed to be integer-valued...
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