Uncategorized
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Giardia Bares All: Parasite genes reveal long sexual history
Sexual reproduction started billions of years ago, as soon as life forms that have nuclei and organelles within their cells branched off from their structurally simpler ancestors.
- Health & Medicine
Urine test signals pregnancy problem
A simple urine test can warn women that they have an increased risk of preeclampsia, a dangerous complication of pregnancy.
- Tech
Congealing useful oddballs
A device for manipulating liquid droplets turns out to have the unexpected ability to fabricate tiny, solid balls with unusual, and potentially useful, patterned structures inside.
- Chemistry
Building artificial cells from scratch
Scientists have created artificial cells that can live and produce proteins as their natural counterparts do, but can't replicate.
- Tech
Thrifty trucks go with the flow
Forcing air through strategically placed slits on a tractor trailer results in a major boost in fuel economy.
- Humans
Letters from the January 29, 2005, issue of Science News
Check it out In “Profiles in Melancholy, Resilience: Abused kids react to genetics, adult support” (SN: 11/20/04, p. 323), you report on a study in which it was found that female monkeys raised in a stressful situation drink alcohol to excess only if they possess just the short serotonin-transporter gene. If a positive correlation were […]
- Health & Medicine
One in a Million
A 15-year-old girl in Wisconsin has survived a rabies infection without receiving the rabies vaccine, a first in medical history.
- Earth
When Mountains Fizz
Scientists are finding that the driving force behind a volcanic explosion is the same thing that propels spewing soda pop: bubbles.
- Tech
Matrix Realized
Devices called brain-computer interfaces could give paralyzed patients the ability to flex mechanical limbs, steer a motorized wheelchair, or operate robots through sheer brainpower.
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- Humans
Letters from the January 22, 2005, issue of Science News
Timely comments The researchers featured in “Summer births linked to schizophrenia” (SN: 11/6/04, p. 301) suggest that a higher incidence of schizophrenia may be due to summer-related infections “or other seasonal factors.” June and July births would have been in early gestation during late fall and winter, when there is increased incidence of depression among […]
- Humans
From the January 19, 1935, issue
Unusual twin girls, recording brain waves, and making heavy hydrogen.
