Uncategorized
- Life
Mature females key to beluga sturgeon survival
Hatchery fish are unlikely to restore caviar-producing fish populations, a new assessment finds.
- Psychology
Alcohol distills aggression in large men
A new study suggests that the ‘big, mean drunk guy’ stereotype contains some truth.
- Space
Geophysicists push age of Earth’s magnetic field back 250 million years
South African rocks suggest that the earliest stages of life on Earth were protected from harmful solar radiation.
- Earth
Arctic seafloor a big source of methane
Measurements show that Arctic undersea methane deposits, previously thought to be sealed by permafrost, are leaking into the atmosphere.
- Life
Researchers distinguish two different types of blood stem cells
Working in mice, scientists find that red and white blood cells arise from different progenitors.
- Physics
Aluminum superatoms may split water
Metal clusters could create hydrogen for fuel, simulations suggest.
- Health & Medicine
Old drug may be first choice for childhood petit mal epilepsy
Three-way trial shows ethosuximide edging out two newer choices.
- Earth
Earth knocked for a loop
Chile’s February 27 temblor, tectonically linked to another giant quake 50 years ago, sped up the Earth’s rotation and tipped the planet’s axis.
- Chemistry
Plasticizers kept from leaching out
‘Chemicals of concern’ may be made safer in new materials.
- Space
Lopsided stellar disks help black holes guzzle gas
Theorists have found a new recipe for feeding the supermassive centers of galaxies.
- Life
Rise of female weaponry driven by poop fights
Motherly fights for excrement in one species of dung beetle have favored the evolution of a special female horn.
- Health & Medicine
Coffee not linked to heart arrhythmia
A large survey of insured people finds no extra hospitalizations in java swillers.
