News
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AgricultureKiller bees boost coffee yields
Even self-pollinating coffee plants benefit substantially from visits by insect pollinators.
By Janet Raloff -
Caregivers take heartfelt hit
Older persons experience elevated systolic blood pressure for at least 1 year after a spouse with Alzheimer's disease enters a nursing-care facility or dies.
By Bruce Bower -
Materials ScienceSpring in your step? The forces in cartilage
Researchers are uncovering the role of molecular forces in cartilage's ability to resist compression.
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Health & MedicineAppetite-suppressing drug burns fat, too
An experimental drug seems to assail obesity through dual biological actions.
By Ben Harder -
ChemistryIons on the Move: Theory of hydroxide’s motion overturned
New computer calculations reveal that a long-held belief about the hydroxide ion's movement in water is wrong.