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A heuristic approach to support route planning for delivery and installation of...

Ferreira, Inês A.; Bento, Catarina; Mascarenhas, Luís; Pimentel, Carina Maria Oliveira; Carvalho, Helena

The number of variants of the vehicle routing problem (VRP) has grown rapidly in the last decades. Among these, VRPs with time window constraints are among the most studied ones. However, the literature regarding VRPs that concerns the delivery and installation of products is scarce. The main aim of this study was to propose a heuristic approach for the route planning process of a company whose focus is on furn...

Date: 2023   |   Origin: RepositóriUM - Universidade do Minho
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Discriminative index of the efficiency of vagotomy in gastrectomized patients.

Mascarenhas, Luís; Branco, Aline; Fernandes, Fernando Veiga

Em 36 doentes submetidos a antrectomia ou gastrectomia sub-total com ou sem vagotomia, por ulcera péptica, estuda-se o valor da acidez basal (BAO) e o valor secretório máximo (PAO) apos sham feeding e pentagastrina com a finalidade de determinar o índice discriminativo acima do qual se pode afirmar que a vagotomia foi ineficaz.Os doentes foram subdivididos em 3 grupos: Grupo 1 — doentes assintomaticos submetido...

Date: 1988   |   Origin: Acta Médica Portuguesa
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