Uncategorized
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Health & MedicineSearing the heart for the better
Electrode-tipped catheter destroys heart tissue to stifle atrial fibrillation, sometimes performing better than meds, study shows.
By Nathan Seppa -
SpaceMars rover Spirit still running, but only in place
Six years into its 90-day mission, NASA’s rover becomes a lander
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Health & MedicineMillions of women at risk of malaria during pregnancy
Potential problems include undetected illness and anemia in mothers, stillbirth and low birth weight in newborns,
By Nathan Seppa -
ChemistryNew material sops up radioactive cesium
Isotope catcher could safely store waste from power plants.
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HumansTeacher anxieties may subtract from girls’ math scores
In first and second grade, female teachers’ insecurity with numbers may correlate to some girls’ doing poorly in math.
By Bruce Bower -
HumansCommon stain repellent linked to thyroid disease
Long-term health study shows connection with blood levels of perfluorooctanoic acid.
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PhysicsQuantum computer simulates hydrogen molecule just right
Team builds device that uses two photons to calculate electron energies.
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EarthTsunamis could telegraph their imminent arrival
Telecommunication cables could give early warnings of giant waves.
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Crop irrigation could be cooling Midwest
A recent drop in summer highs may be linked to greater moisture from the Great Plains.
By Sid Perkins -
MathSlime mold is master network engineer
Single-cell organism develops food distribution system that is as efficient as the Tokyo rail system; inspires new math model for designing dynamic systems.
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LifeMRSA bacterial strain mutates quickly as it spreads
Antibiotic-resistant microbe's detailed family tree reveals roots of the global infection.
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LifeProtein may be new target for obesity, diabetes therapies
Molecule regulates flip of a metabolic switch, helps determine how the body uses glucose.