Tag Archives: knowledge

Focus on Testing Hurts Students in High School Health Classes

COLUMBUS, Ohio – High school health classes fail to help students refuse sexual advances or endorse safe sex habits when teachers focus primarily on testing knowledge, a new study reveals.

But when teachers emphasized learning the material for its own sake, and to improve health, students had much better responses. In these kinds of classrooms, students had lower intentions of having sex and felt better able to navigate sexual situations.

“A focus on tests doesn’t help students in health classes make healthier choices,” said Eric M. Anderman, lead author of the study and professor of educational psychology at Ohio State University. (more…)

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Breakthrough Scientific Discoveries No Longer Dominated By the Very Young, Study Finds

COLUMBUS, Ohio – Scientists under the age of 40 used to make the majority of significant breakthroughs in chemistry, physics and medicine – but that is no longer the case, new research suggests.

A study of Nobel Laureates from 1901 to 2008 in these three fields examined the age at which scientists did their prize-winning work.

Results showed that before 1905, about two-thirds of winners in all three fields did their prize-winning work before age 40, and about 20 percent did it before age 30. (more…)

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West Nile Virus Transmission Linked with Land-Use Patterns and “Super-spreaders”

*Spread highest in urbanized and agricultural habitats*

After its initial appearance in New York in 1999, West Nile virus spread across the United States in just a few years and is now well established throughout North and South America.

Both the mosquitoes that transmit it and the birds that are important hosts for the virus are abundant in areas that have been modified by human activities.

As a result, transmission of West Nile virus is highest in urbanized and agricultural habitats. (more…)

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Berkeley Lab’s Saul Perlmutter wins Nobel Prize in Physics

BERKELEY, CA — Saul Perlmutter, an astrophysicist at the U.S. Department of Energy’s Lawrence Berkeley National Laboratory and a professor of physics at the University of California at Berkeley, has won the 2011 Nobel Prize in Physics “for the discovery of the accelerating expansion of the universe through observations of distant supernovae.” Perlmutter heads the international Supernova Cosmology Project, which pioneered the methods used to discover the accelerating expansion of the universe, and he has been a leader in studies to determine the nature of dark energy.

Perlmutter shares the prize with Brian Schmidt and Adam Riess, leader of the High-z Supernova Search Team and first author of that team’s analysis, respectively, which led to their almost simultaneous announcement of accelerating expansion. (more…)

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