Uncategorized
- 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.
- Health & Medicine
Statins Take On the Brain
Cholesterol-lowering drugs may also treat or prevent Alzheimer's disease.
- Tech
Hop . . . Hop . . . Hopbots!
Two prototype jumping robots that hop, crash-and-land, and then hop again are demonstrating a novel mobility concept that may finally enable small, cheap robots to roam widely over rough terrain.
- 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.
-
18902
“Force from empty space drives a machine” cites the attraction between a gold plate and a ball as proof of vacuum energy and the Casimir force, but isn’t it possible that science has jumped the gun? There may be other causes of this behavior, such as the photoelectric effect producing static electricity, chemical-bonding forces, magnetism, […]
-
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.
