5,033 results
5,033 results for: seek
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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.
- 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 […]
- 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.
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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.
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- Math
Five-Suit Decks, Traffic-Jam Puzzles, and Other Treats
Tired of playing the same old card games with the same old cards? One option is to expand the deck to include five suits instead of just four. To solve this difficult Rush Hour puzzle, you must move vehicles out of the way to permit the red car to exit at right. The best known […]
- Computing
Pictures Only a Computer Could Love
New, unconventional lenses shape scenes into pictures for computers, not people, so that computer-equipped microscopes, cameras, and other optical devices can see more with less.
- Astronomy
Visible Matter: Once lost but now found
New observations confirm that most of the visible matter in the universe lies hidden in vast, hard-to-detect gas clouds between galaxies.
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Raising Trust
Some forager groups may nurture a sharing sense in their offspring.
