of A. Cayley. On the other -hand, W. R. Hamilton did not use the term group but favored the use of his own term quaternions for the development of a theory based upon the special abstract group of order S which-involves 6 operators of order 4. The associative law was later very commonly embodied in the definitions of an abstract group and the development of these groups did much to emphasize th...

this study was designed to examine the antidepressant effect of celecoxib (200 mg/day) augmentation of sertraline in the treatment of female patients with first episode of major depression over 8 weeks of therapy.thirty female outpatients diagnosed with first episode of major depression, were recruited for this study. participants were randomly assigned into two equal groups receiving either se...

we present a matching and lp based heuristic algorithm that decides graph non-hamiltonicity. each of the n! hamilton cycles in a complete directed graph on n + 1 vertices corresponds with each of the n! n-permutation matrices p, such that pu,i = 1 if and only if the ith arc in a cycle enters vertex u, starting and ending at vertex n + 1. a graph instance (g) is initially coded as exclusion set ...

Gary S. Collins* and Yannick Le Manach a Centre for Statistics in Medicine, Botnar Research Centre, University of Oxford, Oxford, UK b Department of Anesthesia, Michael DeGroote School of Medicine, Faculty of Health Sciences, McMaster University and the Perioperative Research Group, Population Health Research Institute, Hamilton, Canada c Department of Clinical Epidemiology and Biostatistics, M...

This study was designed to examine the antidepressant effect of celecoxib (200 mg/day) augmentation of sertraline in the treatment of female patients with first episode of major depression over 8 weeks of therapy.Thirty female outpatients diagnosed with first episode of major depression, were recruited for this study. Participants were randomly assigned into two equal groups receiving either se...