5,012 results
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Yikes! The Lichens Went Flying
Tales from the dark (and frequently crunchy) side of biodiversity.
- Computing
Minding Your Business
By means of novel sensors and mathematical models, scientists are teaching the basics of human social interactions to computers, which should ease the ever-expanding collaboration between people and machines.
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Inside Violent Worlds
Political conflict and terror look different up close and local.
- 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.
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Human Genome Work Reaches Milestone
Two rival groups jointly announced that each has read essentially all of the 3 billion or so letters that spell out the human genome, the genetic information encoded with the 6 feet of DNA coiled up in every human cell.
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Silence of the Xs
Does junk DNA help women muffle one X chromosome?
- Physics
Magnets trap neutrons for a lifetime
A new device that uses magnets to trap neutrons may enable physicists to measure more precisely how quickly free neutrons decay, a time period with implications for understanding both the weak force and the early universe.
- Health & Medicine
Fullness Factor: Gut hormone tells brain the stomach is well fed
A hormone produced by the intestines could be the primary satiety signal sent to the brain.
- Anthropology
The Stone Masters
Investigations of modern-day expert and novice craftsmen of stone tools and decorative stone beads offer insights into the making of stone implements thousands and perhaps even millions of years ago.
- Health & Medicine
Federal Government Launches Organic Standards
Though for decades some foods have carried the label “organic,” consumers never could be sure exactly what the term meant. Action by the Department of Agriculture last week should clarify things. USDA USDA On Oct. 21, USDA implemented regulations governing the production and labeling of organic foods. Until now, bodies from state governments to trade […]
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Anthrax genomes compared for terrorism clues
Investigators seeking clues to last fall's anthrax attack have analyzed the genome of the anthrax bacterium.
