Streetnotes 22 Cover

Lecture 4 , 5 ( Sep 20 , Sep 22 , 2011 ) : Set Cover , LP Duality , 0 - 1 Kanpsack

In this section we consider another method for solving the set cover problem approximately. The method uses randomized rounding of the solution obtained from the linear programming (LP) relaxation of set cover. The basic idea behind this algorithm is first to solve the LP relaxation for the set cover problem. We can think of the solution ~x as a probability to either select a set or not. Note t...

IL 22 ( interleukin 22 )

A22 22..22

Four randomised controlled trials (RCTs) and one RCT metaanalysis are featured in the Journal this month. The latter is a review of trials of newer-generation antidepressants and cognitive–behavioural therapy (CBT) for adolescent depression (Dubicka et al, pp. 433–440). In an area of clinical practice plagued by controversy, the authors of this review were able to contribute the finding that ad...

A22 22..22

Three papers in the Journal this month consider issues related to measuring, understanding and treating mental ill health in childhood. Baron-Cohen et al (pp. 500–509) undertook a study to establish the prevalence of autism-spectrum conditions in Cambridgeshire using two case ascertainment methods. First, a survey of individuals on the Special Educational Needs register and second, a screening ...

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Geopersia is published biannually by the College of Science, University of Tehran, Iran. The College of Science published Journal of Science, which covered all fields of basic science, from 1968 to 2010. It was then decided that the College’s journals should be more specialized, and hence publication of Geopersia was launched. Articles printed in Geopersia will be available online too. Aims an...