Uncategorized
- Physics
Icicle waves go with the flow
A new model of icicle growth may explain the strange fact that ripples often found on those icy spikes typically sit about 1 centimeter apart, whether the icicles themselves are big or small.
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“Waves,” or crenulations, occur not only on water icicles, but also in caves on dripstone and flowstone speleothems composed of calcite, epsomite, goethite, and even mud. All of these formations display “wavelengths” of around 1 centimeter. The origin of these crenulations is due not to heat, but to greater evaporation and carbon dioxide loss from […]
- Health & Medicine
In Silico Medicine
Medical researchers are increasingly turning to computer simulations to help them understand the complexity of living systems, design better drugs, and treat patients more effectively.
- Astronomy
Milky Way’s Last Major Merger
Astronomers have found new evidence supporting the view that the Milky Way and many other spiral galaxies suffered their last major collision billions of years ago.
- Earth
Getting to know carbon
A new research initiative will focus on the complex life of carbon as it cycles through Earth's land, water, and atmosphere.
- Earth
Forecast: Heavy winds, plasma showers
A new spacecraft has snapped the first images of a region of ionized gases in Earth's magnetic field.
- Health & Medicine
An alternate approach to Parkinson’s
While levodopa is the treatment of choice for Parkinson's disease, drugs called dopamine agonists, which mimic the neurotransmitter dopamine, may work as well early in the disease, cause fewer side effects, and preserve levodopa's effectiveness.
- Health & Medicine
Bypass surgery in elderly works fine
Coronary bypass surgery works as well in people over age 75 as it does in people 15 years younger.
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Bacteria, this spud’s for you
A compound in potato extracts stops bacteria from sticking to their targeted cells.
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Viral enzyme tackles strep throat
An enzyme from viruses that chew up bacteria may be a new kind of antibiotic.
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Pelvic infection tied to bacterial gene
A newly discovered gene may explain why some gonorrheal infections turn even more serious.
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Neural-learning ventures
Sets of neurons may modify their activity in several ways to facilitate a basic type of learning.
