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Technology News on March 26, 2011

Antarctic icebergs play key role in climate change: Study
Researchers have discovered that when icebergs cool and dilute the seas through which they pass for days, they also raise chlorophyll levels in the water that may in turn increase carbon dioxide absorption in the Southern Ocean, a finding that has global implications for climate research. ANI

Humanity's influence on climate began 8,000yrs ago, say researchers
Scientists have come up with new evidence in support of the theory that human agriculture was changing the climate 8,000 years ago. ANI

X-ray technique peers beneath surfaces of artifacts
Researchers say that striking discoveries in archaeology are being made possible by strong beams of X-rays. ANI

Ancient tools found in India throw light on hominid migrations out of Africa
Stone artefacts unearthed in southeastern India have shown that African hominids moved to South Asia shortly after developing advanced stone tools 1.6 million years ago. ANI

Frightened birds' wings grow faster and longer
Researchers have found that female birds exposed to predators while ovulating produce smaller offspring than unexposed females. ANI

New colon cancer marker identified
Scientists at the University of Colorado Cancer Center have identified an enzyme that could be used to diagnose colon cancer earlier. ANI

Cancer 'roadmap' could help fight resistance to targeted drug therapies
Scientists at UCLA have developed a "roadmap" of the complex signalling processes involved in cancer that could lead to new methods for diagnosing and overcoming drug resistance to the disease. ANI

Algae, bacteria hogged oxygen after ancient mass extinction, wiping out marine life
Stanford researchers have found that after the biggest mass extinction in Earth's history - 250 million years ago - algae and bacteria in the ocean rebounded so fast that they consumed virtually all the oxygen in the sea, slowing the recovery of the rest of marine animals for several million years. ANI

How neurons in the brain decide how to transmit information
Scientists have established a fundamental mechanism by which neurons in the brain communicate. ANI

Quantum dots could make solar panels more efficient
New studies conducted by researchers at the Colorado School of Mines could significantly improve the efficiency of solar cells. ANI

How mutations in a gene cause Parkinson's disease
Scientists have found a way that mutations in a gene called LRRK2 may cause the most common inherited form of Parkinson's disease. ANI

Study offers potential new targets for novel anti-HIV drugs
A new study has found that the human immunodeficiency virus (HIV), the cause of AIDS, makes use of the base excision repair pathway when inserting its DNA into the host-cell genome. ANI

Do you really know your best friend?
You think you know everything about your best friend that there is to know, but do you really? ANI

How smells are detected and processed by the brain
Scientists have discovered a previously unknown step in how odors are detected and processed by the brain. ANI

NASA stardust spacecraft officially shuts down operations
The career of NASA's Stardust spacecraft officially came to an end at 7:33 p.m. EDT Thursday, March 24, after sending its last transmission to Earth. ANI

'Sophisticated' cavemen 'had more in common with us than we like to think'
A leading archaeologist claims that cavemen were far more sophisticated than their dimwitted reputation suggests. ANI

Asthma drug could help fight Alzheimer's disease
Researchers at Temple University's School of Medicine have found that a drug used to treat asthma can reduce the formation of amyloid beta, a peptide in the brain that is implicated in the development of Alzheimer's disease. ANI

Slow and steady really does win the race
A Michigan State University evolutionary biologist has suggested that it is sometimes better to be an adaptable tortoise than a fit hare when it comes to survival of the fittest. ANI

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