Uncategorized
- Health & Medicine
Immune gene linked to prostate cancer
An immune-cell gene plays a role in predisposing men to prostate cancer.
- Astronomy
Found: Gamma-ray background information
Resolving a 30-year-old mystery, astronomers say they have identified the source of the faint, high-energy glow of radiation known as the gamma-ray background.
- Earth
Much that glitters is really old
New isotopic analyses of rock samples from one of the world's richest gold-mining regions suggest that the flecks of gold in those ores are more than 3 billion years old.
- Health & Medicine
New twist on a pet theory
Growing up with cats may reduce a child's risk of developing asthma—unless the child's mother has asthma as well.
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Get Rid of the Bodies
Scientists are learning how organisms safely clear out cell corpses.
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I was intrigued by the fact that some apoptotic cells can recover if not engulfed by another cell. DNA reassembly after the caspases tear it apart should result in many gene mutations. While most of the mutations would result in cell death, perhaps a few cells would have mutations that promote a cancerous or precancerous […]
- Plants
Fungus of the Month
Wisconsin botanist Tom Volk’s smorgasbord of a mycology Web site offers a variety of enticing distractions. You can find morel mushrooms dressed in their holiday best, fungi that ought to be avoided at a Thanksgiving feast, and much more. Be sure to check out the fungus of the month, then browse the archive of fungal […]
- Materials Science
Materials with Memory
Metal alloys and polymers that can remember a preprogrammed shape may literally reshape technologies ranging from warfare to medicine and car repair.
- Humans
From the March 29, 1930, issue
WANTED: EARLY PLANET PHOTOGRAPHS With the discovery of the planet beyond Neptune, by Lowell Observatory astronomers, many months of observation will be needed before even an approximate idea can be obtained of the orbit in which it is moving. A planet like this moves in the ecliptic, the plane in which Earth itself revolves around […]
- Tech
Ear to Traffic
Listen to the sounds of Web site activity, as massaged by statistician Mark Hansen of Lucent Technologies and translated into musical tones by audio artist Ben Rubin of the Brooklyn Academy of Music. Intriguing audio samples offer hints of how aural cues might complement visualization techniques in data mining. Requires a Web browser with RealPlayer […]
- Math
The Incredible Pi Code
Extending this colored grid reveals (to some eyes) a provocative portrait. Researchers have expended a great deal of effort computing as many of those digits as computer technology and mathematical methods allow. Last year, Yasumasa Kanada of the University of Tokyo calculated pi to 206,158,430,000 decimal digits. A high school student has now smashed that […]
- Chemistry
Sensor sniffs out spoiled fish
A new electronic nose detects amine compounds produced when fish decay.
