This Week in PNAS

In the Proceedings of the National Academy of Sciences this week, Yale University scientists have developed a cheap, microfluidic platform that uses biocompatible ferrofluids "for the controlled manipulation and rapid separation of both microparticles and live cells." Using microspheres, they achieved 99 percent separation efficiency based on size at less than 10-micron resolution, demonstrating the platform's potential in "significantly reducing incubation times and increasing diagnostic sensitivity in cellular assays

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The London School of Economics' Daniele Fanelli argues at the Proceedings of the National Academy of Sciences that the reproducibility crisis in science isn't as dire as some say.

A team of researchers in Portugal has examined the genomic basis for racing pigeons' athleticism and navigational skills, finding it's likely polygenic.

Wired reports that diagnostic firms continue to seek, post-Theranos, the ability to diagnose diseases from small amounts of blood.

In Science this week: analysis of DNA from ancient North Africans, and more.