Jesus Rafael

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We study the polyhedral structure of two related core combinatorial problems: the subtree cardinalityconstrained minimal spanning tree problem and the identical customer vehicle routing problem. For each of these problems, and for a forest relaxation of the minimal spanning tree problem, we introduce a number of new valid inequalities and specify conditions(More)
Energy expenditure in ob/ob mice kept at thermoneutrality was quantified from food intake and body composition of mice treated with leptin over 15 and 75 days, respectively. Energy expenditure in response to 15 days of treatment with leptin was twice as high as under pair-feeding conditions, indicating extensive breakdown of adipose tissue independent of a(More)
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