Jill Bolte Taylor: My Stroke of Insight

Neuroanatomist Jill Bolte Taylor had an opportunity few brain scientists would wish for: One morning, she realized she was having a massive stroke. As it happened — as she felt her brain functions slip away one by one, speech, movement, understanding — she studied and remembered every moment. This is a powerful story about how our brains define us and connect us to the world and to one another.

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Diesel Fumes Shown Harmful to Brain

Diesel Fumes Shown to Harm Brain

Inhaling diesel exhaust triggers a stress response in the brain that may have damaging long-term effects on brain function, Dutch researchers said on Tuesday.

Previous studies have found very small particles of soot, or nanoparticles, are able to travel from the nose and lodge in the brain. But this is the first time researchers have demonstrated a change in brain activity.

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Study: 1 in 4 US Teens Have a Sexually Transmitted Disease

Study: 1 in 4 US Teens Have a Sexually Transmitted Disease

More than one in four U.S. teen girls is infected with at least one sexually transmitted disease, and the rate is highest among blacks, the U.S. Centers for Disease Control and Prevention said on Tuesday.

An estimated 3.2 million U.S. girls ages 14 and 19 — about 26 percent of that age group — have a sexually transmitted infection such as the human papillomavirus or HPV, chlamydia, genital herpes or trichomoniasis, the CDC said.

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Pew Study: Cellphones More Valuable than TV or Internet

Pew Study: Cellphones More Valuable than TV or Internet

Of those surveyed  in Pew’s March Report, between October and December 2007, 51% said it would be hard to give up their mobile phone. Only 45% said so for the Internet, 43% said television and 40% said their landline phone.

This is a sharp reversal from 2002, when the same questions were asked. Back then, 63% said their landline phone, 47% said television and the Internet and mobile phones tied with 38%.

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Study: Educated People Live Longer

 Study: Educated People Live Longer

If you have been contemplating going back to school to get a degree, this might convince you: a study by the Harvard School of Medicine has shown that people with a better education tend to live longer.

“Between the 1980s and 2000, life expectancy increases occurred nearly exclusively among high-education groups,” the study said, giving some striking and convincing figures.


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Why Traffic Jams Occur

 

Traffic that grinds to a halt and then restarts for no apparent reason is one of the biggest causes of frustration for drivers. Now a team of Japanese researchers has recreated the phenomenon on a test-track for the first time.The mathematical theory behind these so-called “shockwave” jams was developed more than 15 years ago using models that show jams appear from nowhere on roads carrying their maximum capacity of free-flowing traffic – typically triggered by a single driver slowing down.

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Drugs In Our Drinking Water

Drugs In Our Drinking Water

A vast array of pharmaceuticals — including antibiotics, anti-convulsants, mood stabilizers and sex hormones — have been found in the drinking water supplies of at least 41 million Americans, an Associated Press investigation shows.

To be sure, the concentrations of these pharmaceuticals are tiny, measured in quantities of parts per billion or trillion, far below the levels of a medical dose. Also, utilities insist their water is safe.

But the presence of so many prescription drugs — and over-the-counter medicines like acetaminophen and ibuprofen — in so much of our drinking water is heightening worries among scientists of long-term consequences to human health.

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New Paint Designed to Generate Solar Electricity

New Paint Designed to Generate Solar Electricity

A lick of solar-power paint could see the roofs and walls of warehouses and other buildings generate electricity from the sun, if research by UK researchers pays off.

The scientists are developing a way to paint solar cells onto the steel sheets commonly used to clad large buildings. Steel sheets are painted rapidly in steel mills by passing them through rollers.


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Moscow Now Has More Billionaires Than NYC

Moscow Now Has More Billionaires Than NYC

Forbes released its report today on the world’s billionaires, see the top 25 (after the jump). Note that Indians represent three of the six richest people on the planet, and four of the eight richest people, compared to only two Americans. Of the top 25 richest people in the world, Russia has almost twice as many billionaires as the U.S. 

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Quantum Dot Solar Cells to Capture Broader Spectrum of Sunlight

 Quantum Dot Solar Cells to Capture Broader Spectrum of Sunlight

For the first time, researchers have created solar cells made of different-sized quantum dots, each tuned to a specific wavelength of light. By arranging these quantum dots in an ordered pattern, the scientists hope that they can one day fabricate “rainbow” solar cells, which can efficiently harvest a large part of the useful spectrum of sunlight.

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