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Abstract: Extremely large-scale multiple-input-multiple-output (XL-MIMO), which offers vast spatial degrees of freedom, has emerged as a potentially pivotal enabling technology for the sixth ...

Regional Transportation Authority board Chair Kirk Dillard made it clear in a letter sent to transit officials this week that any changes to executive leadership at the CTA now need the OK of Illinois ...

The Chicago Transit Authority is defending its decision to reduce the length of trains on some “L” lines on weekends this summer, saying the practice will save money and help keep trains in better ...

Researchers relied on a newer gene-editing technique that may make it possible to engineer embryos, a prospect that has long alarmed bioethicists. By Carl Zimmer Scientists at Columbia University have ...

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