5,519 results
- Earth
Steven Chu’s Senate Confirmation Looks Certain
Senate energy committee appreciates Obama's pick for Secretary of Energy.
- Life
Sepsis buster
The Ashwell receptor, a sugar-binding protein on liver cells, helps fight sepsis by clearing blood-clotting factors. The discovery clears up years of mystery surrounding the receptor’s function.
- Humans
Infectious finds at ancient site
A DNA analysis of skeletons found at a submerged Israeli site produces the earliest known evidence of human tuberculosis, now known to have existed at a 9,000-year-old farming settlement.
- Earth
Life down deep
Deep-sea sediments provide a habitat for diverse and abundant populations of microorganisms and may be home to as much as 70 percent of the bacteria on the planet, new studies suggest.
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- Health & Medicine
Triggering autoimmune assaults
Mouth bacteria unleash inflammation-inducing protein
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Swell, a Pain Lesson: Gut microbes needed for immune development
Intestinal bacteria train the immune system to cause pain and swelling, but that's a good thing.
- Earth
Methane even escapes from freezing permafrost
An extended field season reveals that the autumn freeze in the arctic squeezes methane from some high-latitude wetland soils, a match even for summertime methane release.
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- Animals
Antibiotic Alligator: Promising proteins lurk in reptile blood
Scientists are zeroing in on alligator blood proteins that show promise for fighting disease-causing microbes.
- Life
Rest in peace nanobacteria, you were not alive after all
New studies bid a fond farewell to nanobacteria -- the extremely tiny “microorganisms” that have sparked controversy and may cause disease.
- Paleontology
Fossils, now available in color
Fossilized feathers of an early bird or dinosaur may retain evidence of pigment, offering a chance to animal colors of the Cretaceous.
