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19548
I wonder if the enhanced learning that the researchers observed might have resulted not from the supplemental zinc per se, but from the zinc’s blocking absorption of fluoride in the juice. Most juice, especially grape and citrus, has enormous concentrations of fluoride from the pesticides used to produce it. Fluoride is known to cross the […]
By Science News -
Health & MedicineZinc boosts kids’ learning
Zinc fortification improved mental skills in children with normal healthy diets, suggesting that the recommended intake for this mineral may need to be raised.
By Janet Raloff -
EarthOysters under siege: Heat and pollution
With global warming, some polluted waters could become graveyards for certain shellfish.
By Janet Raloff -
When opposites don’t attract
The quirks of two kinds of European corn borers are giving researchers a way to study how a single species might split in two.
By Susan Milius -
Planetary ScienceFar-out science
New measurements show that the planetoid Sedna spins more rapidly than earlier observations had suggested.
By Ron Cowen -
Health & MedicineWhen the stomach gets low on acid
A study in mice shows that a shortage of stomach acid can lead to cancer, apparently as a result of bacterial overgrowth and inflammation.
By Nathan Seppa -
Many cyanobacteria make a neurotoxin
A brain-damaging toxin, once believed to come only from a group of tropical plants and their live-in microbes, turns out to be much more widespread.
By Susan Milius -
Health & MedicineLicorice ingredient ferrets out herpes
A compound in licorice homes in on lab-grown cells infected with a herpes virus and induces them to self-destruct.
By Nathan Seppa -
PaleontologyEarly mammal had newfangled fangs
A tiny mammal that lived in Colorado about 150 million years ago had hollow teeth that lacked enamel, a characteristic that didn't reappear in mammals for another 100 million years.
By Sid Perkins -
Planetary ScienceThe Huygens Chronicles
After several months of painstaking work analyzing data from the Huygens probe, planetary scientists are able to see the surface of Saturn's moon Titan in greater detail than ever before.
By Ron Cowen -
Read All about It
Brain studies and cross-cultural investigations indicate that the neural path to becoming a good reader varies, depending on a person's inherent capacity for assessing print and on the design principles of his or her native writing system.
By Bruce Bower -
19547
It is frustrating to read of studies endeavoring to study brain activity as related to reading and thinking. What the researchers are observing, in my opinion, is brain activity related to building a lexicon. Animals and children “think” without a lexicon. “Ethan” was intensely interested in symbols but not exceptional in relating those symbols to […]
By Science News