News
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Materials ScienceNew work improves stainless steel surface
A novel electrochemical method improves the surface of stainless steel without making the metal brittle or prone to corrosion.
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AstronomyNudging asteroid fragments toward Earth
New computer simulations detail how fragments of asteroids travel to Earth and rain down as meteorites.
By Ron Cowen -
Squirrels save for the family’s future
Some female red squirrels hoard extra food for youngsters that haven't yet been conceived.
By Susan Milius -
Bean weevils get a kick out of mates
Breeding in stored grain throughout the tropics, bean weevils represent an unusually clear example of the evolutionary male-female arms race.
By Susan Milius -
Health & MedicineMaking scents of Alzheimer’s
Among people with mild symptoms of memory loss, a limited ability to recognize smells—along with an inability to detect the disability—has been linked to the future development of Alzheimer's.
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Health & MedicineCell therapy not just for Parkinson’s
Transplanted nerve cells can survive in the brains of people who have suffered strokes and may alleviate some brain damage.
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Health & MedicineImmune response in brain sparks nausea
Ailments ranging from the common cold to many types of cancer can make people nauseous, an effect that may occur because signals from the brain suppress the muscle contractions required for digestion.
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EarthAllergic to computing?
The plastic cases of certain computer monitors emit a chemical—triphenyl phosphate—that can cause allergic reactions.
By Janet Raloff -
EarthSmoking out a source of painful menses
Breathing in secondhand smoke may contribute to the development of menstrual cramps.
By Janet Raloff -
Health & MedicineBacteria Provide a Frontline Defense
Bacteria genetically engineered to secrete microbe-killing compounds can fight disease in mice and rats.
By Nathan Seppa -
Some teens show signs of future depression
Certain characteristics typify teens who suffer recurrences of depression as young adults, raising researchers' hopes for devising improved depression treatments.
By Bruce Bower -
TechSoftware enhances view of aircraft flaws
New software can run an ultrasonic machine that will map corrosion beneath the surface of an airplane more quickly, safely, and effectively than can existing devices.
By Laura Sivitz