Yeesh. After surveying 275 reusable gastrointestinal endoscopes from U.S. hospitals, researchers found that 15 percent aren't up to cleanliness standards.
Gastrointestinal endoscopes carry cameras into the small intestine, stomach or colon, to help doctors examine those areas. As you can imagine, they get pretty dirty. If they're not well cleaned, they can transmit microbes and other biological matter between people.
At first, the controversy over NASA’s arsenic-loving bugs centered on whether the space agency had found aliens. A week later, the debate has ping-ponged the other way, with scientists questioning whether the bacteria even love arsenic at all.
Researchers at the Lawrence Livermore National Lab have taken a big step toward bridging the gap between mind and machine. Using ATP – adenosine triphosphate, the molecular medium of energy exchange present in nearly all living cells – the team has created a novel transistor that could allow electronic devices that can be hooked directly into the nervous system.