In an in-press Social Science Research article appearing online this week, North Carolina State University's Steve McDonald shows that women are generally less likely than men to land certain jobs informally — i.e., when not searching for them — through workplace social contacts. To come to this conclusion, McDonald analyzed US Bureau of Labor Statistics study data obtained between 1979 and 1998.

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In PNAS this week: human cytomegalovirus diversity, patterns of homologous recombination in E. coli, and more.

US lawmakers are considering eliminating the medical devices tax that is part of the Affordable Care Act.

Two research teams in China home in on a gene that gives rice a long, slender shape.

Marcia McNutt, the editor-in-chief of Science, has been nominated to become president of the US National Academy of Sciences.