News
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Health & Medicine
Gene profiles might guide chemotherapy
Profiles of genetic variations in cancer patients could help oncologists predict the outcome of chemotherapy.
By Nathan Seppa -
Brain perks up to uncertain threats
The brain shows particular sensitivity to facial expressions that convey vague threats.
By Bruce Bower -
Plants
Sun-tracking dads make better pollen
In one of the first tests of paternal behavior in plants, snow buttercups that were allowed to follow their natural tendency to track sun movement made more-viable pollen than did tethered blooms.
By Susan Milius -
Materials Science
Material mimics mother-of-pearl in form and substance
A new synthetic material is so strong and tough that it might one day be used to construct artificial bones or even auto parts.
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Astronomy
Telescope spies a galactic satellite
A huge gas cloud once considered a remnant from when the Milky Way or nearby galaxies formed is, in fact, a satellite of our galaxy.
By Ron Cowen -
Tech
Making machines from genes
A novel machine made from DNA also uses DNA as its fuel.
By Peter Weiss -
Tech
Coddled crystal slams door on light
A better fabrication process yields such a high-quality optical material that microchips using light, rather than electrons, may be close to reality.
By Peter Weiss -
Humans
Russia’s nuclear-safety issues spread
A leading Russian environmentalist, Aleksandr Nikitin, says Russia's problems with nuclear-waste management should concern people beyond that country's borders.
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Humans
Cutting edge chemistry rushes online
A new online server offers a place for communicating chemistry research to other scientists quickly and without peer review.
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Health & Medicine
Do zinc lozenges shorten common colds?
People taking zinc to fight a cold report less coughing, less nasal discharge, and a shorter cold than do people getting a placebo.
By Nathan Seppa -
Health & Medicine
Coffee linked to rheumatoid arthritis
People who drink four or more cups of coffee per day appear more likely to get rheumatoid arthritis than are those drinking less.
By Nathan Seppa -
Health & Medicine
Data faked in immune-system study
A researcher fabricated evidence suggesting that never-before-seen RNA-DNA-hybrid molecules play a role in creating antibodies.
By John Travis