News
- Chemistry
Power cells find uses for fossil fuel
A new fuel cell that runs on hydrocarbons such as natural gas, butane, and diesel instead of hydrogen could be an efficient, practical way to generate power without pollution.
- Humans
Message in DNA tops Science Talent Search
A project on encrypting words within a strand of DNA won the top prize at the Intel Science Talent Search.
- Health & Medicine
Olfactory cells aid spine healing in rats
Injections of olfactory ensheathing glial cells from the brain help severed spinal cords heal in rats.
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Good Readers May Get Perceptual Lift
The ability to hear and see rapidly changing stimuli may underlie reading skills, raising the possibility of new approaches to reading instruction.
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Alcohol can induce fainting spells
Alcohol imbibed in modest quantities can disrupt the reflex that maintains blood pressure when a person stands up quickly, which may account for why some people faint when they down a few drinks and then stand up.
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Progestin adds to breast cancer risk
Women taking estrogen are more prone to get breast cancer if they are also taking the hormone progestin.
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Listen to the shapes
People use still-unspecified acoustic cues to discern the shapes of hidden, vibrating plates.
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Tough talk for depressed husbands
Positive comments directed by depressed men to their wives often elicit negative responses from the women, a conversational style that may contribute to the men's mood problems.
- Animals
Hormone still rules no-tadpole frogs
Coqui frogs may skip the tadpole stage, but within the egg, they undergo a metamorphosis ruled by thyroid hormone.
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Brain cells work together to pay attention
Cells in the brain's cortex may coordinate their electrical activity as attention shifts from visual to tactile information.
- Earth
Hey polluters! This billboard’s for you
Motorists generally like and respond to personalized billboard messages about when an engine tune-up may be warranted.
- Health & Medicine
HIV sexual spread exploits immune sentinels
The virus that causes AIDS latches onto a protein called DC-SIGN to hitch a ride on immune cells in mucus membranes and spread through the body.
