News tagged with national
Poisonous prehistoric 'raptor' discovered in China
Other Sciences / Archaeology & Fossils
Dec 21, 2009 |
4.9 / 5 (12) |
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(PhysOrg.com) -- A group of University of Kansas researchers working with Chinese colleagues have discovered a venomous, birdlike raptor that thrived some 128 million years ago in China. This is the first ...
Physicists propose quantum entanglement for motion of microscopic objects
Dec 21, 2009 |
4.4 / 5 (16) |
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Researchers at the California Institute of Technology (Caltech) have proposed a new paradigm that should allow scientists to observe quantum behavior in small mechanical systems.
Physicists detect two candidate dark matter interactions, but say the data are not conclusive
Dec 18, 2009 |
4.1 / 5 (16) |
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(PhysOrg.com) -- Scientists have spent decades searching for the elusive material known as dark matter, which is believed to make up 25 percent of the universe. On Thursday, Dec. 17, a team of physicists including ...
Why newborn babies can't walk
Medicine & Health / Neuroscience
Dec 18, 2009 |
4.2 / 5 (13) |
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(PhysOrg.com) -- The first steps of an infant is a real milestone in the development of all mammals including humans, but little is known about why some animals can walk soon after birth, while others need ...
On the tip of your tongue: Researchers reveal our motor system activates when we hear speech
Medicine & Health / Neuroscience
Dec 22, 2009 |
4.2 / 5 (6) |
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(PhysOrg.com) -- Researchers from Royal Holloway, University of London have discovered our motor system activates automatically when we hear speech. These findings could, in the future, play a central role ...
Enzyme necessary for development of healthy immune system
Dec 22, 2009 |
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Mice without the deoxycytidine kinase (dCK) enzyme have defects in their adaptive immune system, producing very low levels of both T and B lymphocytes, the major players involved in immune response, according to a study by ...
Researchers are on the path to creating nano-MRI images
Dec 22, 2009 |
4.7 / 5 (6) |
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(PhysOrg.com) -- Cornell researchers are devising methods to detect the magnetic fields of individual electrons and atomic nuclei, which they hope to use to make a nanoscale version of magnetic resonance imaging.
Chemical energy influences tiny vibrations of red blood cell membranes
Dec 21, 2009 |
4.8 / 5 (6) |
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(PhysOrg.com) -- Much like a tightly wound drum, red blood cells are in perpetual vibration. Those vibrations help the cells maintain their characteristic flattened oval or disc shape, which is critical to ...
Foot binding and a biological approach to the study of Chinese culture
Other Sciences / Social Sciences
Dec 21, 2009 |
2.8 / 5 (4) |
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(PhysOrg.com) -- Exaptation is a familiar concept to evolutionary biologists. It's the basic idea explaining that a trait can evolve because it starts serving a different function. Think of birds: at first, the most important ...
Bioengineered materials promote the growth of functional vasculature, new study shows
Dec 21, 2009 |
4.8 / 5 (4) |
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Regenerative medicine therapies often require the growth of functional, stable blood vessels at the site of an injury. Using synthetic polymers called hydrogels, researchers at the Georgia Institute of Technology ...
Depression saps endurance of the brain's reward circuitry
Medicine & Health / Neuroscience
Dec 21, 2009 |
4.5 / 5 (6) |
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A new study at the University of Wisconsin-Madison suggests that depressed patients are unable to sustain activity in brain areas related to positive emotion.
Study casts doubt on provocative tuberculosis theory
Dec 21, 2009 |
4 / 5 (1) |
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The tuberculosis bacterium is an insidious germ that can lie dormant for many years, then suddenly emerge and cause potentially fatal disease.
Naturally occurring lipid blocks RSV infection in lungs
Dec 21, 2009 |
5 / 5 (2) |
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Researchers at National Jewish Health have discovered that a naturally occurring lipid in the lung can prevent RSV infection and inhibit spread of the virus after an infection is established. RSV is the major cause of hospitalization ...
Microcephaly genes associated with human brain size
Dec 21, 2009 |
3.7 / 5 (3) |
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A group of Norwegian and American researchers have shown that common variations in genes associated with microcephaly - a neuro-developmental disorder in which brain size is dramatically reduced - may explain differences ...
Housing growth near national parks may limit conservation value
Dec 22, 2009 |
5 / 5 (1) |
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The growth of housing near national parks, national forests and wilderness areas within the United States may limit the conservation value that these protected areas were designed to create in the first place, a new study ...
