Laboratory experiments and seismological observations show that increased fault healing causes a disproportionately large amount of high-frequency seismic radiation to be produced during fault rupture, which may help to explain recent observations of large megathrust earthquakes.

The cell death of inhibitory neurons, which originate far from the cortical areas to which they migrate during embryonic development, is determined autonomously rather than by competition for trophic signals from other cell types.

A meta-analysis of previous genome-wide association studies of Crohn’s disease and ulcerative colitis, the two most common forms of inflammatory bowel disease, with a combined total of more than 75,000 cases and controls, finds that most loci contribute to both phenotypes and other immune-mediated disorders.