An international collaboration bringing together over 200 scientists from 13 countries has shown that the very high-energy gamma-ray emission from quasars, galaxies with a highly energetic nucleus, is not concentrated in the region close to their central black hole but in fact extends over several thousand light-years along jets of plasma.
Two exceptional strains of tuberculosis, isolated from East African patients with multi-resistant forms of the disease, have been discovered thanks to the use of a new molecular test, Deeplex-MycTB 1.
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Catalytic nanoparticles contain various sites: for instance, the sites C (center of a hexagonal facet; nine neighbors marked in yellow), E (edge between two hexagonal facets; seven neighbors in green) and K (kink, at the corner between three facets; six neighbors in purple). Atoms at edges and terraces appear in light and dark blue, respectively.
Researchers at the Intelligent Systems and Robotics Institute (ISIR, a joint UPMC/CNRS structure) and colleagues from the University of Lorraine* are the cover story in Nature. Their work, published in the May 27, 2015 issue, show how robots can automatically adapt in less than two minutes when they have been damaged.