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Stanford University School of Medicine's Ben Barres and his colleagues identified a molecular on-switch that catalyzes the transformation of immature brain cells into myelin-producing oligodendrocytes. In a study to be published in today's Neuron, the scientists found that the microRNA molecule miR-219 is found at high levels only in oligodendrocytes and that it's necessary to induce these brain cells' precursors to mature.

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Two researchers are calling for education for scientists on defending facts.

Researchers were among those who marched in London this weekend to call for another vote on Brexit.

Duke has agreed to pay $112.5 million to settle a lawsuit regarding its handling of data falsified by biologist Erin Potts-Kant. 

In PLOS this week: genetic factors influencing inorganic arsenic metabolism and toxicity, a germline variant in the cell adhesion molecule-coding gene DSCAM, and more.