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Membrane type 1-matrix metalloproteinase (MT1-MMP) has been identified to play a significant role in several types of cancers, but little is known about the significance of MT1-MMP in gastric cancer patients. The purpose of this study is to investigate the involvement of MT1-MMP in tumor progression of gastric cancer. MT1-MMP expression levels were examined(More)
To solve the mixed-integer nonlinear programming problem of unit commitment in electric power system, the problem was separated into two subordinate optimization problems with integral and continuous variables first, then a new hybrid algorithm based on ant colony optimization (ACO) and particle swarm optimization (PSO) was proposed. The first step is to(More)
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