News
- Materials Science
Future brightens for carbon nanotubes
Researchers have made a lightbulb that depends on carbon nanotubes for its glow.
- Health & Medicine
Gender bias: Stroke after heart surgery
Women are more likely than men to suffer strokes after heart surgery.
- Health & Medicine
New drug takes on intestinal cancer
Imatinib mesylate, already approved by the FDA for treating people with a form of leukemia, blocks the activity of certain enzymes that cause gastrointestinal stromal cells to replicate uncontrollably.
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Caterpillars die rather than switch
A newly identified compound in tomatoes and other plants of the nightshade family turns hornworms into addicts that often starve rather than eat another food.
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Soy estrogen laces paper-mill wastes
Paper-mill effluent contains an estrogen-mimicking pollutant at concentrations that may adversely affect reproduction in fish.
- Health & Medicine
Virus in transplanted hearts bodes ill
Pediatric heart-transplant recipients who acquire a viral infection in the heart fare poorly over the long term.
- Humans
San Jose hosts 2001 science competition
More than 1,200 students from almost 40 countries competed last week in San Jose for more than $3 million in prizes and scholarships at the 2001 Intel International Science and Engineering Fair.
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Many refugees can’t flee mental ailments
Refugees interviewed in camps in Nepal exhibit post-traumatic stress disorder and other mental ailments, especially if they have survived torture in their native country.
- Astronomy
Snacking in space: Star dines on planet
Astronomers have found evidence that a star has swallowed one or more of its own planets.
- Physics
Light shines in quantum-computing arena
A new computing scheme using available technology and only classical physics appears to handle many tasks that researchers thought would be unsuited to any computers except the still-hypothetical ones that would exploit quantum physics.
- Earth
They’re not briquettes, but they’ll do
Chunks of fossil charcoal found in ancient sediments in north central Pennsylvania suggest that cycles of wildfire plagued Earth more than 360 million years ago.
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To save gardens, ants rush to whack weeds
Ants can grow gardens, too, and the first detailed study of their weeding techniques shows that whether a gardener has two legs or six, the chore looks much the same.
