News
- Physics
An 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.
- Health & Medicine
New sources and uses for stem cells
Human skin and scalp tissue may provide a source of neural stem cells.
- Health & Medicine
Pesticide tied to Parkinson’s disease
Rodents exposed to massive amounts of the pesticide rotenone develop a condition similar to Parkinson's disease.
- Health & Medicine
Old antibiotic takes on Alzheimer’s
An antibiotic that binds copper and zinc may prevent brain deposits that cause Alzheimer's disease.
- Health & Medicine
Does vitamin A aid learning?
A lack of Vitamin A may cause learning and memory problems, albeit potentially reversible ones.
- Health & Medicine
New 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.
- Health & Medicine
It’s that time. . .for heart attacks?
A small study of young women already at high risk of having a heart attack suggests that heart attacks are most frequent when estrogen levels are low, soon after a woman's period begins.
- Health & Medicine
Big meals boost heart attack risk
Unusually heavy meals boost a person's chance of developing a heart attack, at least among those people who already have risk factors for heart disease.
- Health & Medicine
Teasing out tea’s heart-healthy effect
Drinking black tea makes a person's blood vessels dilate more easily, which may explain why drinking tea can protect against heart disease.
- Health & Medicine
Nitric oxide may benefit damaged hearts
A small study in mice suggests that inhaling nitric oxide may protect against tissue damage after a heart attack.
- Health & Medicine
Sputum Test May Predict Lung Cancer
By zeroing in on aberrations in two cancer-fighting genes, researchers have found a marker for cancer risk that could help doctors screen people for signs of lung cancer early enough for treatment to be effective.
- Materials Science
To make bronze, tin flakes do a wild dance
Upsetting some prevailing ideas about how alloys form, rafts of tin atoms jitterbug madly around on a pure copper surface and leave spots of bronze in their wakes.
