News
- Health & Medicine
Teeth grinding linked to sleep apnea
Rhythmic grinding of teeth during sleep occurs at least once a week in as many as 8.2 percent of people.
- Health & Medicine
Lyme vaccine works in a curious way
Antibodies formed in response to the vaccine against Lyme disease kill the bacteria that cause it while they are still in the deer tick that spreads it.
- Health & Medicine
It pays to keep those islet cells
A patient who has inflammation of the pancreas and needs to have the organ removed can avoid getting diabetes if islet cells are salvaged from the pancreas and reimplanted into the liver.
- Materials Science
Droplets string themselves together
Under the right conditions, mixing two incompatible polymers can produce drops that organize themselves into strings.
- Paleontology
Did ancient superbees squash diversity?
The recent discovery of several dozen extinct bee species in ancient amber deposits has led one paleontologist to propose that the very success of some bees' social lifestyle led to today's dearth of hive-dwelling species.
- Health & Medicine
HIV-related viruses still cross species line
Various potentially dangerous strains of simian immunodeficiency virus exist in wild primates in Africa and are still being spread among people who hunt the animals for meat.
- Physics
Force from empty space drives a machine
A novel micromachine uses quantum fluctuations of empty space to help drive its motion.
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Infection divides two wasp species
Two tiny wasp species provide the best evidence yet that infection by Wolbachia bacteria can play a role in forming species.
- Astronomy
Old stars reveal universe’s minimum age
Using a technique more precise than ever before, an international team of researchers has estimated the age of the universe to be at least 12.5 billion years old.
- Anthropology
Neandertals and humans each get a grip
A fossil analysis indicates that, by about 100,000 years ago, modern humans in the Middle East had hands suited to holding stone tools by attached handles, whereas Neandertals did not.
- Health & Medicine
One-Two Drug Punch Trips Up Leukemia
A leukemia cell seals its own fate when researchers trap cancer-causing proteins in its nucleus.
- Plants
The bladderwort: No ruthless microbe killer
A carnivorous plant called a bladderwort may not be a fierce predator at all but a misunderstood mutualist.
