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Health & MedicineDrug cuts recurrence of breast cancer
Letrozole, which blocks estrogen production, reduces recurrence of breast cancer in women who have exhausted the usefulness of tamoxifen, the frontline cancer drug for this disease.
By Nathan Seppa -
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Your article states, “There are about 4.14 kilograms of carbon in a gallon of gasoline, says Dukes.” If he actually said that, this would seem to qualify this gasoline as an “alternative fuel,” since a gallon of ordinary gasoline is only about 2.5 kilograms in mass. Perhaps Dukes meant 4.14 pounds of carbon per gallon. […]
By Science News -
EarthFill ‘er up . . . with a few tons of wheat
A new analysis suggests that the amount of ancient plant matter that was needed to make just 1 gallon of gasoline is the same amount that can be grown each year in a 40-acre wheat field—roots, stalks, and all.