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Bt-Corn Pollen Can Kill Monarchs
Pollen from corn engineered to produce the biopesticide Bt can inadvertently
kill monarch-butterfly caterpillars.
Elephants may have started out all wet
Elephants may have evolved in the sea and used their trunks as snorkels.
Asteroids formed early on in solar history
A new study corroborates theoretical models suggesting that some of
the large building blocks of planets formed, heated up, then cooled
down within the first 5 million years of the birth of the solar system.
Common cold virus is foiled by
a decoy
A drug that mimics a molecule used by cold viruses to invade cells has
reduced cold symptoms in some people and prevented colds in others.
Closing the loop on the end of a chromosome
The tips of chromosomes end in protective loops of DNA, heretofore unsuspected.
Peptide packs in holographic data
Films of a peptide made up of copies of the dye azobenzene attached
to proline amino acids can be used as a medium for storing data holographically.
Hip bones imply early humans lived large
Two nearly complete pelvic fossils from more than 200,000 years ago
support the theory that human ancestors had much bulkier bodies than
people living today.
Fusion fuel zips to core through back door
Injecting nuclear fuel pellets through the inside or top walls of a
doughnut-shaped reactor increases the plasma density at the reactor's
high-temperature core.
Out of the Swamps
How early vertebrates established a foothold—with all 10
toes—on land
Paleontologists have found the earliest known vertebrate adapted to
life on land.
The Hard Truth about Hearts
A test that measures calcium deposits may screen for heart disease
A new technology for detecting early signs of heart disease measures
calcium deposits in the beating heart.
A Shelter in the Storm
Oklahoma tornadoes give 'strong rooms' their first test
Specially constructed rooms in houses can save lives in a tornado.
Biomedicine
Hot spots may signal heart attacks
Tiny changes in temperature along artery walls might indicate both the
presence of atherosclerotic plaques and which plaques are most likely
to rupture.
Bone marrow boosts transplant success
A study of nearly 400 patients shows that giving transplant recipients
infusions of donor bone marrow cells along with the donated organ reduces
the rejection rate.
The straight dope
Long-term marijuana use does not seem to affect mental function adversely.
Physics
A quantum bit comes to life on a chip
The creation of a quantum bit on a microchip suggests that computers
based on quantum mechanics might ultimately be built using the materials
and methods of conventional manufacturing techniques.
Laser may twirl molecules to pieces
By whirling molecules at up to 10 trillion revolutions per second, a
laser's spinning electric field may selectively break bonds in the molecules.
