Titlebook: Integer Programming and Combinatorial Optimization; 10th International I Daniel Bienstock,George Nemhauser Conference proceedings 2004 Spri

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Enumerating Minimal Dicuts and Strongly Connected Subgraphs and Related Geometric Problemst the first of these problems can be solved in incremental polynomial time, while the second problem is NP-hard: given a collection of minimal dicuts for ., it is NP-complete to tell whether it can be extended. The latter result implies, in particular, that for a given set of points ., it is NP-hard

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Separable Concave Optimization Approximately Equals Piecewise Linear Optimization approximation is to arbitrary 1+. precision in optimal cost. For polyhedral ground sets in . and nondecreasing cost functions, the number of pieces is polynomial in the input size and proportional to 1/log(1+.). For general polyhedra, the number of pieces is polynomial in the input size and the siz

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Ricardo Fukasawa,Jens Lysgaard,Marcus Poggi de Arag?o,Marcelo Reis,Eduardo Uchoa,Renato F. Werneckrelationship to diabetes mellitus. It was written with the aim of using an important clinical problem to illustrate, to medical students, that there are many aspects of the biochemistry taught in the early years which have direct relevance to clinical medicine. Furthermore, it is hoped that such inf

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Pasquale Avella,Sara Mattia,Antonio Sassanohe supply of certain nutrients in the diet, the concentration of these nutrients in the blood is maintained at a level appropriate to the varying and competing needs of the tissues of the body. This is achieved largely by alterations in the rate of secretion of the islet cell hormones into the circu