By a GenomeWeb staff reporter

NEW YORK (GenomeWeb News) – Sigma-Aldrich today reported a 2 percent increase in fourth quarter revenues to $582 million, a new quarterly high, but short of analysts' expectations.

The figure for the three months ended Dec. 31, 2010, compares to $573 million for the fourth quarter of 2009. Wall Street expected revenues for the quarter of $587.5 million.

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In PNAS this week: ancestry and admixture in Brazilians, characterization of novel double-stranded RNA mycovirus, and more.

Researchers report that what scents someone picks up can reflect their complement of immune genes.

The New York Times examines ethics and China's push to lead biomedical research.

At her blog, Sally Rockey dives into National Institutes of Health funding data.