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Health & MedicineNew role for cholesterol-lowering drugs
Drugs that lower cholesterol benefit patients who have just had a heart attack or chest pains, regardless of the patient's initial cholesterol levels.
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Health & MedicineDoes vitamin A aid learning?
A lack of Vitamin A may cause learning and memory problems, albeit potentially reversible ones.
By John Travis -
Health & MedicineOld antibiotic takes on Alzheimer’s
An antibiotic that binds copper and zinc may prevent brain deposits that cause Alzheimer's disease.
By John Travis -
Health & MedicinePesticide tied to Parkinson’s disease
Rodents exposed to massive amounts of the pesticide rotenone develop a condition similar to Parkinson's disease.
By John Travis -
Health & MedicineNew sources and uses for stem cells
Human skin and scalp tissue may provide a source of neural stem cells.
By John Travis -
Materials ScienceOne-Upping Nature’s Materials
Striving for designer substances that build themselves from individual molecules.
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AnimalsWill Mr. Bowerbird Fall for a Robot?
Push a button and she turns her head. But can she turn his?
By Susan Milius -
PhysicsAn electron ruler gauges crystal flaws
Electrons ricocheting through a crystal now make it possible for scientists to discern shifts in crystal lattices as small as a hundredth of an atom's width.
By Peter Weiss -
EcosystemsFly may be depleting U.S. giant silk moths
A parasitic fly introduced to fight gypsy moths starting in 1906 may be an overlooked factor in the declines of giant silk moths.
By Susan Milius -
Health & MedicineVaccine protects monkeys from Ebola virus
A combination of a DNA vaccine and a vaccine based on a genetically modified common cold virus enables monkeys to resist Ebola virus, the first evidence that an Ebola vaccine works in primates.
By Nathan Seppa -
Certain memories may rest on a good sleep
People who practice a task that demands quick visual processing perform it better on ensuing trials if they are first allowed to get some sleep.
By Bruce Bower -
Planetary ScienceAn early cosmic wallop for life on Earth?
New evidence from lunar meteorites suggests that debris bombarded the moon some 3.9 billion years ago, about the same time that life may have formed on Earth.
By Ron Cowen