To double-check for false results, pooled tests that come back negative can be redistributed in slightly larger pools and run through PCR once more, a process known as "back-screening," Bilder said. Another method to ensure accuracy, currently being verified by Frazier and his collaborators at Cornell University, pools samples in a grid of columns and rows of test tubes. If both a column and row among the samples tests positive, the tube at their intersection should contain a positive swab test common to both. … [Read more...] about Wuhan tested millions of people for COVID-19 in just days. Could US cities do the same?
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Because Facebook's entire code base is compiled down to a single binary executable, the company's deployment process is quite different from what you'd normally expect in a PHP environment. Rossi told me that the binary, which represents the entire Facebook application, is approximately 1.5GB in size. When Facebook updates its code and generates a new build, the new binary has to be pushed to all of the company's servers. … [Read more...] about Exclusive: a behind-the-scenes look at Facebook release engineering
The TX5 was unveiled yesterday as part of a state visit by China's premier Xi Jinping. The London Taxi Company is owned by Geely, a Chinese car company (which also owns Volvo). The TX5 will be built on Chinese electric vehicle technology, and the new plant will be funded by Geely. The London Taxi Company says that half of London's current stock of black cabs will be replaced by the TX5 within the next five years. … [Read more...] about London’s next-gen TX5 black cab will be a plug-in hybrid
More impressive is the breadth and depth of supported leagues and sports. You have the option of exploring NFL, NBA, MLB, NHL, Golf, Formula 1, Premier League and La Liga, which is a pretty good spread. There's also an interesting Best of the Web section, that, as the name implies, displays some of the best sports-related sites from across the Web. It functions a lot like the sources section in News, and includes everything from memorabilia sites to fantasy sports analysis—though, again, you can't read any of them from within the app; you're forced to go through Internet Explorer instead. … [Read more...] about Hands-on: News, Sports, and Travel go Metro in Windows 8 Release Preview
Names used to obtain the domains included Adrien Leroy, Arthur Vangen, George Wirtz, Gerard Caraty, Ivan Blix, and at least 15 others. They claimed to reside in a host of cities in Europe and elsewhere, in some cases at addresses that turned out to belong to hotels such as the Appart’Hotel Residence Dizerens in Geneva or, with a slight modification, the Apple Inn in Amsterdam. Other fake identities used addresses of shops, organizations, or doctor's offices. Because of the effectiveness and complexity of Flame and its targeting of Iran and other Middle Eastern computers, researchers have speculated it was sponsored by a wealthy nation-state. … [Read more...] about Iran-targeting Flame malware used huge network to steal blueprints