Duke University researchers conclude that physicians who achieve an 80% success rate in endoscopic retrograde cholangiopancreatography (ERCP) are adequately trained, regardless of the number of procedures performed. This finding challenges the common assumption that more procedures equal competence.
Researchers gather to explore progress and challenges in implementing the Comprehensive Test Ban Treaty's verification regime, covering seismic, infrasound, hydroacoustic, and radionuclear data. The goal is to detect even tiny nuclear events, making it as difficult as possible for them to slip through.
Recent experiments on Alaska's North Slope show that the arctic tundra is now releasing more carbon dioxide and methane into the atmosphere than it absorbs. This could exacerbate global warming due to the release of stored carbon from thawing permafrost.
A significant reservoir of methane and hydrocarbons has been discovered in rock beneath the ocean floor, potentially supporting a wide range of microorganisms. The findings, presented by University of Washington oceanographer Deborah Kelley, suggest that these microbes may thrive on chemicals toxic to other life forms.
A team of scientists has assembled evidence on rocks and rock formations deep beneath the surface to locate an ancient strike-slip fault. If successful, this will provide opportunities to study geological processes in the lower crust during strike-slip faulting.