Uncategorized
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Maternal care may leave brain legacy
Rat experiments indicate that mothers' licking and grooming of offspring induces biological changes in female pups that in turn regulate their maternal behavior as adults.
- Earth
Photo Treasures
The National Oceanic and Atmospheric Administration offers an amazing library of more than 16,000 spectacular images, organized into a variety of topical sets. You can browse image collections devoted to coastlines, fisheries, ships, polar regions, severe storms, undersea research, nature reserves, flight, geodesy, coral reefs, and many other subjects. Go to: http://www.photolib.noaa.gov/ .
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From the October 31, 1931, issue
CATS WERE WILD IN ANCIENT SOUTHWEST In ancient America, it was bad luck to meet a cat on a dark night. All the cats that the Indians knew were wildcats. Dogs were tamed and learned to follow Indian hunters and Indian children around, but cats walked by themselves, very wild and alone. The Indian pottery […]
- Health & Medicine
Epilepsy article wins award
The Epilepsy Foundation honored Science News writer Damaris Christensen with its magazine award for her article "Endgame for Epilepsy?"
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19033
The article states that a generic beta-blocker, when administered to patients who have suffered severe injury, was shown to reduce the common muscle-wasting condition known as hypermetabolism. Has this technique ever been considered for or shown effective in reducing inactive muscle wasting, as would occur in a long-term space voyage? Dwain L. Beaver Dayton, Ohio […]
- Health & Medicine
Beta-blockade guards burn victims’ muscle
A medication that reduces the risk of heart attack also can diminish a muscle-wasting metabolic response common among victims of severe trauma or illness.
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Virgin birth infections shift wasp targets
Scientists have found a second bacterial infection that can cause an insect version of virgin births, but this one can affect the host that a wasp attacks.
- Chemistry
Bitter truth about beer comes to a head
Chemists have figured out exactly how beers develop a skunky flavor and smell.
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Female chimps don’t stray in mate search
Genetic testing of chimpanzees living in western Africa indicates that females usually seek mates within their home communities, a finding that contradicts some previous reports.
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Gene influences density of the skeleton
The mutated gene responsible for a rare bone disorder has been found.
- Astronomy
Age of the universe: A new determination
Analyzing the faint glow left over from the Big Bang, scientists report measuring the age of the cosmos with unprecedented accuracy—14 billion years, accurate to within half a billion years.
- Math
Tolstoy’s Calculus
“Absolute continuity of motion is not comprehensible to the human mind. Laws of motion of any kind become comprehensible to man only when he examines arbitrarily selected elements of that motion; but at the same time, a large proportion of human error comes from the arbitrary division of continuous motion into discontinuous elements.” This striking […]
