Uncategorized
- Health & Medicine
Hidden Effect? Hypertension risk linked to common, over-the-counter pain relievers
Women who take ibuprofen or acetaminophen for headaches or inflammation boost their chances of developing high blood pressure.
- Astronomy
Iron-Poor Star: Closing in on the birth of the first stars
Astronomers have found a star so old and metal poor that its chemical composition carries vestiges of the origin of our galaxy.
- Animals
Fish Fraud: Cleaners show off before biting clients
Some of the reef fish that make their living by nibbling parasites off other fish may be luring clients into scams by offering free massages.
- Materials Science
Metal Manipulation: Technique yields hard but stretchy materials
Researchers have combined a standard metalworking technology—rolling—with a programmed sequence of cooling and heating steps to process copper into a form that contains both nanoscale and microscale crystal grains.
- Planetary Science
Echoes of Icequakes: Simple probe could measure Europa’s ocean and icy shell
A football-size space probe could provide a low-cost way to determine whether there's a liquid ocean on the Jovian moon Europa.
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Neural Shape-Up: Brain anticipates object perception
A new brain-scan study indicates that so-called higher visual areas predict the structure of incoming visual information and suppress activity in the visual system's entry area to foster object recognition.
- Earth
More Frog Trouble: Herbicides may emasculate wild males
New studies of male frogs in the wild link trace exposures to common weed killers with partial sex reversal.
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19149
It was with great interest that I read this article. I realize that such articles aren’t comprehensive reviews of the literature, but I must point out that we have recently published in Virus Genes direct experimental evidence that supports the involvement of endogenous retrovirus in embryo implantation. Luis P. Villarreal University of California Irvine, Calif.
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19189
I feel the need to comment on the misconception that trisomies of other than chromosome 21 don’t survive birth. I have a friend whose daughter is a trisomy 18 and just celebrated her 19th birthday and other friends whose children with trisomies are nearing their teenage years. My own son, a trisomy 13, lived for […]
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19148
Newton derived theories about gravity by studying stationary or very slowly moving objects. Laboratory measures of G performed since share this fundamental approach. While this may accurately measure G, any possible relative velocity dependence to this constant or to the force of gravity goes undetected. Determining that force involves only the masses, the separation, and […]
- Humans
From the October 29, 1932, issue
THE OWL AND THE PUSSYCAT RIVALS AT MOUSE-CATCHING One of the favorite riddles of childhood was, “Spell ‘mousetrap’ in three letters”; and the answer was “C-A-T.” With even more appropriateness, the answer might have been “O-W-L,” for the Owl is an even better mousetrap than the Pussycat, besides being somewhat more restrained in the matter […]
- Earth
Timely Climate
Science educators at the University of Colorado and the National Geophysical Data Center in Boulder have designed an online tool that lets users study climate change and variability on different time scales–from daily fluctuations to cyclic changes with periods that span 100,000 years. Focusing on climatic processes and specific climate events, each time-scale category has […]
