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Brain-Cell Loss Found in Narcolepsy
The puzzling sleep disorder known as narcolepsy stems from the destruction of a small group of brain cells.
By John Travis -
NIH OKs work on stem cells
The U.S. government opened the door for U.S. scientists to receive federal funding for research on stem cells from human embryos.
By John Travis -
ChemistryAdditive gives improved mileage, less smog
A new fuel additive, polyisobutylene, decreases automobile emissions by 70 percent while increasing power and mileage.
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Gene find could yield decaffeinated plants
The first published report of cloning a gene for caffeine synthesis raises the possibility of creating decaf plants.
By Susan Milius -
AstronomyNeutron stars twist Einstein’s theory
Astronomers may finally have found evidence of a key prediction of Einstein's general theory of relativity—that a spinning object drags space-time along with it.
By Ron Cowen -
Health & MedicineCarotid surgery stands test of time
Surgery to remove blockages from the carotid artery in the neck has lasting effects against stroke over several years and even provides some benefit when it's delayed.
By Nathan Seppa -
Strep infection sets off tics in some kids
Some children may have a genetic susceptibility to developing obsessive-compulsive disorder and tic ailments after a streptococcal infection.
By Bruce Bower -
EarthStudy gives new answer for muddy mystery
Geologists provide evidence that quartz silt in ancient seabeds doesn't come from eroded land rocks, but rather from the dissolved skeletons of tiny primitive creatures, possibly altering the fossil record and changing models of prehistoric climate and ocean geography.
By Ruth Bennett -
Health & MedicineMarrow converted into brain cells
Scientists can now efficiently transform bone marrow into nerve cells.
By John Travis -
Health & MedicineSperm just say NO to egg cells
Sperm fertilizing an egg produce a whiff of nitric oxide.
By John Travis -
Health & MedicineData 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