San Diego State University has received US Patent No. 8,268,551, "Sensitive sensing based on optical nonlinear wave mixing." The patent claims techniques for using four-wave mixing in microarrays with sample cells of biological or chemical materials. In one implementation, a DNA microarray is placed in an optical degenerate four-wave mixing system operating at an optical wavelength within an absorption spectral range of the DNA cells to generate a DFWM signal in one DNA cell. The DFWM signal is collected and measured.

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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.

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