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A model embryo helps researchers model human congenital spine diseases. Plus, hints of how cochlear implants help hearing and a pivotal year for working scientists.
Radiation-damaged paternal DNA has been found to cause embryos of the second generation of nematode worms, but not the first, to die. The proposed mechanisms help to explain the observed lack of such an effect in humans.
Future LEDs could be based on lead halide perovskites. A breakthrough in preparing device-compatible solids composed of nanoscale perovskite crystals overcomes a long-standing hurdle in making blue perovskite LEDs.
Cells in a state of arrested growth, called senescence, have been characterized in skeletal muscle in mice. Senescent cells promote inflammation and block regeneration, and thus might induce harmful changes in aged muscle.