News
- Health & Medicine
Germs in tobacco are potential source of respiratory infections blamed on smoking
Tests find hundreds of bacterial species in major cigarette brands.
- Health & Medicine
Chip of tooth tells radiation dose
A two-milligram dot of tooth enamel serves as a radiation dosimeter.
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- Life
Hydrothermal vents sometimes colonized from afar
Deep-sea currents can waft larvae hundreds of kilometers.
- Health & Medicine
Carotid procedures test about equally
Study finds similar stroke risks after surgery or stents.
