Dopamine Impacts Your Willingness to Work

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Published on: May 2, 2012

ScienceDaily (May 1, 2012) — Slacker or go-getter? Everyone knows that people vary substantially in how hard they are willing to work, but the origin of these individual differences in the brain remains a mystery. Now the veil has been pushed back by a new brain imaging study that has found [...]

Under ‘Dark Halo’ Old Galaxies Have Many More Stars

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Published on: May 2, 2012

ScienceDaily (May 1, 2012) — Some of the oldest galaxies in the Universe have three times more stellar mass, and so many more stars, than all current models of galaxy evolution predict. The finding comes from the Atlas3D international team, led by an Oxford University scientist, who found a way to [...]

Jurassic Pain: Giant ‘Flea-Like’ Insects Plagued Dinosaurs 165 Million Years Ago

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Published on: May 2, 2012

ScienceDaily (May 1, 2012) — It takes a gutsy insect to sneak up on a huge dinosaur while it sleeps, crawl onto its soft underbelly and give it a bite that might have felt like a needle going in — but giant “flea-like” animals, possibly the oldest of their type ever [...]

Novel Radiation Surveillance Technology Could Help Thwart Nuclear Terrorism

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Published on: May 2, 2012

ScienceDaily (May 1, 2012) — Among terrorism scenarios that raise the most concern are attacks involving nuclear devices or materials. For that reason, technology that can effectively detect smuggled radioactive materials is considered vital to U.S. security. To support the nation’s nuclear-surveillance capabilities, researchers at the Georgia Tech Research Institute (GTRI) [...]

Arctic Sea-Ice Loss Didn’t Happen by Chance

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Published on: May 2, 2012

ScienceDaily (May 2, 2012) — The ongoing rapid retreat of Arctic sea ice is often interpreted as the canary in the mine for anthropogenic climate change. In a new study, scientists have now systematically examined the validity of this claim. They find that neither natural fluctuations nor self-acceleration can explain the [...]

Artificial Muscle: Squid and Zebrafish Cells Inspire Camouflaging Smart Materials

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Published on: May 2, 2012

ScienceDaily (May 2, 2012) — Researchers from the University of Bristol have created artificial muscles that can be transformed at the flick of a switch to mimic the remarkable camouflaging abilities of organisms such as squid and zebrafish. They demonstrate two individual transforming mechanisms that they believe could be used in [...]

Eye Size Determined by Maximum Running Speed in Mammals

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Published on: May 2, 2012

ScienceDaily (May 2, 2012) — Maximum running speed is the most important variable influencing mammalian eye size other than body size, according to new research from The University of Texas at Austin. Species with larger eyes usually have higher visual acuity, says Chris Kirk, associate professor in the Department of Anthropology. [...]

Large-Scale Simulation of Human Blood Is Boon to Personalized Medicine

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Published on: May 2, 2012

Having a virtual copy of a patient’s blood in a computer would be a boon to researchers and doctors. They could examine a simulated heart attack caused by blood clotting in a diseased coronary artery and see if a drug like aspirin would be effective in reducing the size of [...]

important for everyone

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Published on: April 17, 2012
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