News
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ADHD’s Brain Trail: Cerebral clues emerge for attention disorder
A new brain-imaging investigation suggests that disturbances in a network of regions involved in regulating actions and attention underlie the childhood psychiatric ailment known as attention-deficit hyperactivity disorder.
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There’s no faking it
The brain activity in men and women having an orgasm is very similar.
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HIV protein breaks biological clock
The AIDS virus secretes a protein that interferes with an animal's biological clock.
- Health & Medicine
Cleaning up glutamate slows deadly brain tumors
Eliminating the glutamate released by brain tumors may slow the cancer's growth.
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Protein triggers nerve connections
Nonnerve cells called astrocytes secrete a protein that enables nerve cells to connect.
- Health & Medicine
Drug cuts recurrence of breast cancer
Letrozole, which blocks estrogen production, reduces recurrence of breast cancer in women who have exhausted the usefulness of tamoxifen, the frontline cancer drug for this disease.
- Earth
Fill ‘er up . . . with a few tons of wheat
A new analysis suggests that the amount of ancient plant matter that was needed to make just 1 gallon of gasoline is the same amount that can be grown each year in a 40-acre wheat field—roots, stalks, and all.
- Ecosystems
UK halts badger kill after study of TB
Partial results from a new study have pushed the United Kingdom to stop its controversial, decades-old policy of killing local badgers if cattle catch TB.
- Materials Science
No Assembly Required: DNA brings carbon nanotube circuits in line
Using DNA as a scaffold, researchers have devised a simple way of creating carbon nanotube transistors—a feat that paves the way for more complex circuits made from these nanomaterials.
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Whales of Distinction: Old specimens now declared a new species
Japanese researchers have named a new category of living baleen whales to explain puzzling specimens dating back to the 1970s.
- Planetary Science
Giant picture of a giant planet
The Saturn-bound Cassini spacecraft has taken the sharpest global portrait of Jupiter ever obtained, showing the planet's turbulent atmosphere in true color.
