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Applied sciences and engineering/Information science/Data samples/Random sampling

Although two out of three Americans reportedly use social media sites like Facebook, Twitter, or YouTube, researchers say that few users appreciate the ways that social media are manipulated to influence voters and affect the outcome of elections.

Employees at the American Association for the Advancement of Science (AAAS) and its journal Science today expressed shock and deep sadness at the tragic loss of the gifted science journalist and artist, Constance Holden.

Holden, 68, a veteran journalist and painter affectionately known to friends and colleagues as “Tancy,” apparently had just left the AAAS headquarters building on her bicycle around 6:00 p.m. Monday 12 April when she was struck and killed by a truck providing support for the Nuclear Security Summit taking place in downtown Washington, D.C.