Enhanced oxygen evolution activity in NiFe layered double hydroxides via Ce doping and oxygen vacancy engineering

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"We have to try and test to find this optimisation of friction, of back-driveability," says David Kehr, president of humanoid robotics. "It's really a big puzzle."

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Democrats said that the incident underscored how important it was for there to be a clear public record of the deposition. Rep. Robert Garcia, the top Democrat on the Oversight panel, said that Hillary Clinton, after the incident, repeated her longstanding demand that the deposition be made public, and Democrats called for a video and transcript of the complete proceedings to be released quickly.