Uncategorized
- Earth
Toxic color TVs and computer monitors
High concentrations of lead can leach from the X-ray-filtering glass used in picture tubes, suggesting that this glass should be treated as hazardous waste.
- Earth
Prenatal exposures affect sperm later
Boys exposed in the womb to hormone-mimicking pollutants may mature into men who produce impaired sperm.
- Health & Medicine
Lupus in Depth
The Lupus Foundation of America provides a comprehensive Web site about this autoimmune disease, which affects up to 1.5 million people in the United States. The site offers information on the kinds of lupus, causes, symptoms, testing, and treatment. Students and researchers may also find it useful to check detailed accounts of ongoing studies. Go […]
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Culture of the Sea
Whales and dolphins strut their social stuff for scientists.
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It’s a boy! It’s a girl! It’s a mosaic embryo
Using a new technique to examine chromosomes of in vitro fertilization (IVF) embryos at the time they're implanted in the womb, researchers report abnormalities never seen later in development, possibly explaining why IVF has a low efficiency.
- Health & Medicine
Study bolsters head injury, Alzheimer’s link
Veterans who suffered a moderate or severe concussion during World War II face a heightened risk of Alzheimer's disease when they reach old age.
- Astronomy
Are most extrasolar planets hefty imposters?
A new study makes the startling claim that nearly half the objects reported to be extrasolar planets are something much more massive and mundane—either lightweight stars or stellar wannabes known as brown dwarfs.
- Animals
Dull birds and bright ones beat so-so guys
The plumage of yearling male lazuli buntings shows signs of a rare form of evolutionary pressure called disruptive selection.
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Nicotine metabolism may spawn carcinogen
The body may metabolize nicotine into products that the lungs subsequently may convert into a potent compound that causes lung cancer.
- Materials Science
Crystal puts pressure on diamonds
A new type of synthetic crystal called moissanite allows researchers to study more material at high pressure than is possible with traditional diamond devices.
- Tech
Aircraft trick may give big rigs a gentle lift
Using sheet-like jets of air to control aerodynamic drag and lift—a technology first developed for aircraft—may boost gas mileage and improve braking and handling of tractor-trailer trucks.
