News
- Earth
Plastics agent worsens skin allergies
Low doses of one of the most commonly used softeners in plastics can aggravate dust-mite allergy.
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Sleep disorder tied to brain ills in kids
Researchers have linked a severe form of sleep apnea in children to brain irregularities that may contribute to learning problems.
- Health & Medicine
Herpes simplex viruses dip in prevalence
Two viruses that cause genital herpes decreased in prevalence in the United States during the past 2 decades.
- Health & Medicine
Old drug can stop clots as well as newer drug does
A decades-old form of the anticlotting drug heparin is as safe, as effective, and potentially as convenient to use as recent derivatives that are many times more expensive.
- Earth
Are pollutants shrinking polar bear gonads?
New research links persistent pollutants with reproductive impairment in polar bears.
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High-protein diets boost hunger-taming hormone
Eating protein appears to boost blood concentrations of a hormone recently found to restrict appetite.
- Physics
Radiant plasma may combat cavities
Dentists may someday disinfect teeth with a newly demonstrated, handheld stylus that exudes glowing plasma deadly to cavity-causing bacteria.
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Stem cells sense stiffness
Stem cells can sense the texture of whatever medium they're growing on and use this quality to guide their fate.
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Katrina’s Two-Sided Impact: Survey finds disorders, resilience after tragedy
In the year after surviving Hurricane Katrina, Gulf Coast residents experienced a surge in serious mental disorders combined with elements of personal growth and emotional resilience.
- Planetary Science
Doggone! Pluto gets a planetary demotion
The solar system has only eight planets, and Pluto isn't one of them, according to the first-ever definition of a planet, approved last week by the General Assembly of the International Astronomical Union.
- Health & Medicine
Head to Head: Brain implants are better for Parkinson’s patients
Parkinson's patients who get electrodes surgically implanted in their brains regain some muscle control and have improved quality of life.
- Paleontology
Frozen rainforest
Fossils trapped in amber provide evidence that the Amazonian rainforest dates back 10 to 15 million years.
