Uncategorized
- Health & Medicine
Radiation therapy keeps arteries clear
Two new studies add to the growing evidence that radiation treatment may keep arteries open longer after angioplasty.
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Cells have molecule for protein triage
A molecule called CHIP slates bad proteins for destruction and may lead to heart disease therapies.
- Chemistry
New technique makes water droplets sprint
A newly developed process encourages water droplets at the hydrophobic center of a wafer to speed outward to a water-friendly edge.
- Math
Quirks of video poker
Even with perfect play over a long time, unfavorable odds and limits on how much a gambler may win per machine make playing video poker into a losing game.
- Math
Reassessing an ancient artifact
The famous Mesopotamian clay tablet known as Plimpton 322 represents an ordered list of worked examples that a teacher would use to prepare a sequence of closely related questions about squares and reciprocals for student exercises.
- Anthropology
Rumble in the Jungle
A new book raises troubling and controversial issues regarding research on a famous South American Indian population.
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18900
What is the etymology of Yanomami? Unless someone pulled my leg, I was told that it was Yanomamo originally. If so, then it may be that the tribe was named by outsiders, much like Native Americans were called Indians by Columbus and others. Anibal José da Silva Houston, Texas The Yanomamo are the most numerous […]
- Earth
Eye above the Timberline
The Tundra-Cam, operated by the University of Colorado’s Institute of Arctic and Alpine Research, sits at an elevation of 11,600 feet near the U.S. Continental Divide. Visitors to the Web site can operate the remotely controlled webcam, panning across the mountainous landscape and zooming in on particular features of interest. Go to: http://tundracam.colorado.edu
- Physics
From the January 24, 1931, issue
EINSTEIN DISCUSSES REVOLUTION HE CAUSED IN SCIENTIFIC THOUGHT – By Dr. Albert Einstein From far away I have come to you, but not to strangers. I have come among men who for many years have been true comrades with me in my labors. You, my honored Dr. Michelson, began with this work when I was […]
- Health & Medicine
Dietary stress may compromise bones
Internal conflict about what and how much to eat not only induces production of a stress hormone but also may eventually weaken bones.
- Health & Medicine
Raloxifene doesn’t hike breast density
Estrogen-replacement therapy that includes estrogen increases breast-tissue density among postmenopausal women, but the estrogen-replacement drug raloxifene doesn’t.
- Earth
Pinning Down the Sun-Climate Connection
Many scientists propose that changes in the sun's magnetic field and radiation output during its 11-year sunspot cycle also affect the atmosphere, changing Earth's climate by steering weather systems and influencing the amount of cloud cover.
