Uncategorized
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Genghis Khan’s Legacy?
Genghis Kahn's military success 800 years ago may have spread a particular form of the Y chromosome, one he may have himself carried.
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- Health & Medicine
Stress-prone? Altering the diet may help
Tailoring a diet to fuel the brain with the precursor of a mood-enhancing chemical may help vulnerable individuals cope with stress.
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Mice can thank a hormone for the memories
Oxytocin, a hormone previously implicated in mammalian sexual and maternal behavior, may play a role in social recognition in mice.
- Chemistry
Lakes reveal low phosphate concentrations
Researchers using a new technique have found that previous measurements of phosphate, an important nutrient in lake ecosystems, have grossly overestimated its concentration.
- Animals
He and she cooperate on anti-aphrodisiacs
Scientists have for the first time identified a chemical that serves as a butterfly anti-aphrodisiac.
- Anthropology
Gene test probes Neandertal origins
A new DNA study supports the theory that Neandertals didn't contribute to the evolution of modern humans.
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19173
Erik Trinkaus argues that fossil evidence shows signs of considerable interbreeding of Neandertals and modern humans. However, I don’t believe that proves we could have Neandertal ancestors. Couldn’t crossbreeding result in sterile offspring, such as is seen in mules? Anne Wittke Flagstaff, Ariz. Sure. Trinkaus argues, however, that the presence of Neandertal traits on the […]
- Health & Medicine
DNA vaccine for measles shows promise
A measles vaccine consisting of just a couple of DNA strands proves effective in monkeys, possibly presenting an alternative or complementary vaccine for the standard immunization now used worldwide.
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19162
I think that your readers should be aware that this article on beach erosion is based upon a report by the Heinz Center for Science that’s being widely disputed. Susan Halsey’s opinion that nothing can be done to stop these losses is in direct conflict with a National Research Council report, “Beach Nourishment and Protection,” […]
- Earth
Enjoy the beach. . .while it’s still there
Up to a quarter of the structures within 500 feet of America's coastlines may be lost to erosion in the next 60 years, according to a report issued by the Federal Emergency Management Agency last week.
- Tech
Magnifier May Crack Crimes, Crashes
Gumshoes equipped with a novel device for magnifying magnetic fields may spy clues on damaged, erased, or deliberately corrupted audio tapes and other magnetic media.
