Word: tracings
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Dates: during 1990-1999
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...trace Linden's career by the annual Holy Cross game. After all, he made his debut as a starter against the Crusaders in '96, going 12-of-22 for 175 yards and two touchdowns in a 28-25 win. It was a big splash, his entry onto the Harvard football scene...
...remarkable experiment performed in 1962 by Canadian psychologist Brenda Milner proved that H.M. can form new memories of a very specific sort. For many days running, she asked him to trace a design while looking in a mirror. As far as H.M. knew, the task was a brand-new one each time he confronted it. Yet as the days wore on, his performance improved. Some part of his brain was retaining a memory of an earlier practice session, a so-called implicit--rather than explicit, or consciously remembered--memory. People who suffer from Alzheimer's disease exhibit the same sort...
...July the American Academy of Pediatrics and the U.S. Public Health Service urged vaccine makers to remove the trace of mercury preservative added to many vaccines to kill bacteria. While the amount of the additive, called thimerosal, in a single vaccine poses no threat, it's remotely possible that the accumulated mercury in multiple inoculations might cause neurological damage. "We took action before evidence of any harm," says Dr. Walter Orenstein, head of the national immunization program for the Centers for Disease Control. "But even with a theoretical risk, we wanted to work with manufacturers to get to thimerosal-free...
...Students aren't even aware that the police may be able to trace their entry or exit," Das said...
Scientists have also unearthed new fossils of known species. This should help them trace the complex relations among our sundry ancestors. One remarkable skeleton, announced this past spring, suggests that modern humans and Neanderthals may even have mated successfully. And new evidence of stone-tool use, dating as far back as 2.5 million years, has provided tantalizing clues to how our forebears thought and behaved...