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Latest Brookhaven National Laboratory Stories

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2011-05-03 06:30:00

Berkeley Lab-led BOSS proves it can do the job with quasars The biggest 3-D map of the distant universe ever made, using light from 14,000 quasars "“ supermassive black holes at the centers of galaxies billions of light years away "“ has been constructed by scientists with the third Sloan Digital Sky Survey (SDSS-III). The map is the first major result from the Baryon Oscillation Spectroscopic Survey (BOSS), SDSS-III's largest survey, whose principal investigator is David Schlegel...

2011-04-28 00:17:57

Technique reveals quantum phase transition; could lead to superconducting transistors for power-saving electronics Like atomic-level bricklayers, researchers from the U.S. Department of Energy's (DOE) Brookhaven National Laboratory are using a precise atom-by-atom layering technique to fabricate an ultrathin transistor-like field effect device to study the conditions that turn insulating materials into high-temperature superconductors. The technical break-through, which is described in the...

2011-04-25 13:50:45

Time-of-flight detector designed at Rice's Bonner Lab critical to antihelium observation Physicists at Rice University and their collaborators have detected the antimatter partner of the helium nucleus, antihelium-4. This newly observed particle is the heaviest antimatter particle ever detected. Scientists at Rice's Bonner Lab designed and built the new time-of-flight detector that identified antihelium-4. The $7.5 million detector was built by a U.S.-China collaboration led by Rice, with...

2011-03-14 13:43:25

New tool will allow integrated, simultaneous study of behavior and brain function in animals Scientists from the U.S. Department of Energy's (DOE) Brookhaven National Laboratory, Stony Brook University, and collaborators have demonstrated the efficacy of a "wearable," portable PET scanner they've developed for rats. The device will give neuroscientists a new tool for simultaneously studying brain function and behavior in fully awake, moving animals. The researchers describe the tool and...

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2011-02-28 10:10:00

Evidence that brain's reward/motivation circuits are linked to compulsive overeating A brain imaging study at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory reveals a subtle difference between ordinary obese subjects and those who compulsively overeat, or binge: In binge eaters but not ordinary obese subjects, the mere sight or smell of favorite foods triggers a spike in dopamine "” a brain chemical linked to reward and motivation. The findings "” published...

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2011-02-23 08:10:00

Speaking directly into a cellphone while holding it against your ear can alter brain activity in those areas closest to the device's antenna, claims a new study published Tuesday in the Journal of the American Medical Association (JAMA). Researchers at the National Institutes of Health (NIH) and the Brookhaven National Laboratory in New York studied 47 adults over the course of a year, using positron emission tomography (PET) to measure their glucose metabolism, or the amount of sugar it...

2011-02-22 05:00:00

SAN DIEGO, Feb. 22, 2011 /PRNewswire/ -- SG Biofuels and Brookhaven National Laboratory (BNL) today released results of a study revealing the performance and emissions benefits of using Jatropha oil as a drop-in replacement for diesel fuel in industrial furnaces used for electric power generation and industrial heating. Testing by BNL of Jatropha oil provided by SG Biofuels revealed that crude Jatropha oil can be blended with residual oil without any problems in separation or...

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2011-02-16 08:25:33

Direct measurements allow detailed look at how quarks of different flavors contribute to spin Scientists hoping to unravel the mystery of proton spin at the Relativistic Heavy Ion Collider (RHIC), a 2.4-mile-circumference particle accelerator at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory, have a new tool at their disposal "” the first to directly explore how quarks of different types, or "flavors," contribute to the overall spin of the proton. The technique,...

2010-12-17 13:16:00

Newly discovered phase helps explain materials' ability to convert waste heat to electricity Scientists have discovered that a class of materials known to convert heat to electricity and vice versa behaves quite unexpectedly at the nanoscale in response to changes in temperature. The discovery - described in the December 17, 2010, issue of Science - is a new "opposite-direction" phase transition that helps explain the strong thermoelectric response of these materials. It may also help...

2010-12-14 01:06:47

Understanding how lignin building blocks are transported could break down barriers to biofuel production One big challenge in converting plants to biofuels is that the very same molecules that keep plants standing up make it hard to break them down. Now scientists at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory are unraveling details of how plant cells' structural supports - their cell walls - are made, with the hope of finding ways to change their composition for more...