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Technology News on February 4, 2011

Fixing hearts without open-heart surgery
Until now, pulmonary valve replacements have required open-heart surgery. ANI

The longer mums work, the higher the BMI increase in kids
Scientists have found that children's body mass index (BMI), which was earlier linked to maternal employment, rose the more years their mothers worked over their kids' lifetimes. ANI

Scientists identify regulatory defect that drives lupus
A group of scientists have identified a regulatory defect that drives lupus. ANI

Second molecule in Alzheimer's toxic duo identified
Researchers at the University of Texas Health Science Center at San Antonio have identified the second molecule in Alzheimer's toxic duo. ANI

2 severe Amazon droughts in 5 years stir climate fear
A new study has revealed that two severe and unexpected droughts in the Amazon basin in just five years have devastated the region's rainforests, and could make global warming worse. ANI

Deadly tool in Salmonella's bag of tricks identified
A Yale University study has shed new light on the potentially deadly bacterium Salmonella, a major cause of food poisoning and typhoid. ANI

Study suggests roadmap to tackle disease wiping out hibernating bats
Conservationists have sketched out a roadmap to tackle a disease that is threatening to wipe out hibernating bats all over North America. ANI

Scientists discover new method to create atom-thin 'nanosheets'
Researchers have discovered a new simple, fast, and inexpensive method of splitting layered materials to produce atom thin 'nanosheets.' ANI

NASA finds Earth's cirrus-like ice clouds on Saturn's moon Titan
Experts at NASA have sighted thin, wispy clouds of ice particles similar to Earth's cirrus clouds on one of Saturn's moons, Titan. ANI

'Water flea' important indicator of environmental contamination
A study has said that 'water fleas' could be indicators of environmental toxins and pollutants. ANI

How sunlight powers free-flying satellites through interplanetary space
Demonstrations have finally confirmed that radiation from sunlight can power spacecraft through interplanetary space. ANI

Blood-clotting agent can be used to diagnose fatal genetic diseases
Scientists at the University of Manchester have demonstrated that a protein involved in blood clotting can be used to diagnose and subsequently monitor the treatment of a group of childhood genetic diseases. ANI

Sun-triggered protein 'makes skin cancer worse'
Scientists have discovered that an unexpected immune protein exacerbates cancer due to sun exposure. ANI

New mosquito type presents challenge in fighting malaria
Scientists in France have identified a new type of mosquito in Africa and say it could further complicate the fight to control malaria. ANI

Genetic study sheds light on how humans colonised the Pacific
University of Leeds researchers have found new evidence that may overturn the current theories of how humans colonised the Pacific. ANI

'Gesture recognition,' robotic nurses to help surgeons of the future
Purdue University researchers are developing a system that recognizes hand gestures to control a robotic scrub nurse or tell a computer to display medical images of the patient during an operation. ANI

Genetic switch that controls tissue regeneration found
It is well known that human body has the ability to heal itself. Thanks to the presence of stem cells, many organs can undergo continuous renewal. But this activity of stem cells has to be carefully controlled, as too much activity can cause diseases like cancer. ANI

US teen's 'solar death ray' can melt anything from metal to concrete
An aspiring teenage scientist in the US has created a solar death ray, out of thousands of mirrors, that can melt anything from metal to concrete. ANI

Expectations accelerate conscious perception: Study
Until now, neuroscientists assumed that the processes leading to conscious perception were rather rigid and that the timing did not vary. ANI

Drinking vegetable juice 'can help people meet key dietary guidelines'
New studies have suggested that drinking V8 100 percent vegetable juice may be a simple way for people to increase their vegetable intake and may help them manage their weight. ANI

Mechanism involved in breast cancer's spread to bone uncovered
A team of Princeton University scientists has discovered a mechanism involved in breast cancer's spread to bone, which may lead to a new treatment for the disease. ANI

'Googleganger' is Macquarie Dictionary's word of the year
The term "googleganger", which describes a person, who emerges among online search results for one's own name, has been named as word of the year by the Macquarie Dictionary. ANI

Drug-abusers find it difficult to identify negative emotions
Scientists at the University of Granada have found that drug-abusers have difficulty in identifying negative emotions by their facial expression: wrath, disgust, fear and sadness. ANI

Boosting body's immune system may hold key to HIV cure
Scientists in Australia have shown that boosting the immune system in mice can rid them of HIV-like infection. ANI

Sand dunes in Northern Mars actively changing
An investigation led by a Planetary Science Institute researcher has revealed that the avalanche faces of huge Martian sand dunes, long thought to be frozen in time on the distant planet, are being re-sculpted on a seasonal basis. ANI

First stars in the universe weren't as lonely as previously thought
Researchers from the Center of Astronomy at Heidelberg University, the Max Planck Institute for Astrophysics in Garching, and The University of Texas at Austin have found that the first stars to form in the universe were not as lonely as previously believed. ANI

How Neolithic farmers and hunter-gatherers fought for space
A new research details a physical model, which can potentially explain how the spreading of Neolithic farmers was slowed down by the population density of hunter-gatherers. ANI

Coming soon: 'Smart Fence' that recognizes threatening footsteps!
A new sensor system modelled after the human brain can help make security smarter by being able to distinguish between potential threats and normal disturbances. ANI

Rembrandt 'mixed flour with paints' for a thicker painting stroke
A new study has found that 17th-century Dutch artist Rembrandt used wheat starch in some of his paint to achieve a thicker stroke. ANI

100mn-yr-old ancestor of carnivorous insect fossil reveals evolution stasis
Researchers at the University of Illinois have found a 100 million-year-old fossil of the ancestor of a carnivorous, cricket-like insect that still live today in southern Asia, northern Indochina and Africa. ANI

Google Earth reveals almost 2000 ancient archaeo sites in Saudi Arabia
Google Earth has revealed 1977 potential archaeological sites, including 1082 "pendants" - ancient tear-drop shaped tombs made of stone, in Saudi Arabia. ANI

Parrots 'tend to be left handed'
Just like humans, parrots too choose to use one side of their body more than the other - with more of them left handed, or left footed, according to Australian researchers. ANI

Thanks to 'Goldilocks effect', dinos left footprints at the perfect time
A new study has found that thanks to something called a 'Goldilocks effect,' dinosaurs left lasting footprints only when conditions were just right. ANI

Shed those extra kilos before pregnancy for a healthy baby
A mice study has found that if obese women shed some extra weight before pregnancy, it has health benefits for their offspring. ANI

New discovery may help in the fight against ovarian cancer
A new study has found that that a type of regulatory RNA may be effective in fighting ovarian cancer. ANI

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