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We developed a high quality charge-injection GeTe/Sb2Te3 superlattice phase change memory. A RESET-current of 70 μA and a SET-speed of 10 ns, the fastest ever reported, were obtained. Transmission electron microscopy analysis showed that the superlattice structure was maintained after 1 million (M) endurance. Even 100 M cycle endurance was possible, and these results conclusively proved non-melting...
Purpose In Japan, a national surveillance study of antimicrobial consumption has never been undertaken. This study aimed to describe antimicrobial consumption and resistance to Pseudomonas aeruginosa in 203 Japanese hospitals, to identify targets for quality improvement. Methods We conducted an ecological study using retrospective data (2010). Antimicrobial consumption was collected in the World...
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