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Quenching one's thirst for knowledge by studying beer foam

August 25, 2014 7:46 am | by Sarah Perrin, EPFL | Comments

A mechanical engineering student at EPFL in Switzerland wanted to understand the reason behind the formation of a “foam volcano” after tapping the neck of a bottle of beer. He studied the phenomenon with a high-speed camera and compared it to the outcome of applying the same action to sparkling water. His work offers insights into the behavior of cavitation nuclei.

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Study: Cutting emissions pays for itself

August 25, 2014 7:44 am | by Audrey Resutek, MIT | Comments

Lower rates of asthma and other health problems are frequently cited as benefits of policies aimed at cutting carbon emissions from sources like power plants and vehicles, because these policies also lead to reductions in other harmful types of air pollution. But just how large are the health benefits of cleaner air in comparison to the costs of reducing carbon emissions?

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Solar fuels as generated by nature

August 25, 2014 7:39 am | Comments

A research team investigating an important cofactor in photosynthesis, a manganese-calcium complex which uses solar energy to split water into molecular oxygen, have determined the exact structure of this complex at a crucial stage in the chemical reaction. The new insights into how molecular oxygen is formed at this metal complex may provide a blueprint for synthetic systems that could store sunlight energy in chemical energy carriers.

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Roche to acquire InterMune for $8.3B

August 24, 2014 1:24 pm | by The Associated Press | Comments

Swiss pharmaceutical company Roche said Sunday it has reached an $8.3 billion deal to buy InterMune Inc., a California-based developer of treatments for lung diseases. The companies have reached an agreement under which Roche will acquire InterMune in an all-cash transaction, paying $74.00 per InterMune share, Roche said.

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Report: Tesla building I-80 supercharger station

August 23, 2014 5:24 pm | by The Associated Press | Comments

Tesla Motors Inc. is building a supercharger station in the Sierra Nevada north of Lake Tahoe where drivers of the company's electric cars can recharge along Interstate 80, a newspaper says. Tesla officials previously announced plans to build a station near Truckee, Calif., about 30 miles southwest of Reno but hasn't confirmed an exact location or opening date.

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Coffee may fight gum disease

August 22, 2014 10:38 am | by Boston Univ. | Comments

Coffee contains antioxidants. Antioxidants fight gum disease. Researchers in dental medicine have found that coffee consumption does not have an adverse effect on periodontal health, and may have protective effects against periodontal disease.

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Vault nanoparticles show promise for cancer treatment, potential HIV cure

August 22, 2014 9:47 am | by Shaun Mason, Univ. of California, Los Angeles | Comments

A multidisciplinary team of scientists from the Univ. of California, Los Angeles and Stanford Univ. has used a naturally occurring nanoparticle called a vault to create a novel drug delivery system that could lead to advances in the treatment of cancer and HIV. Their findings could lead to cancer treatments that are more effective with smaller doses and to therapies that could potentially eradicate the HIV virus.

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Cause of global warming hiatus found deep in Atlantic Ocean

August 22, 2014 9:34 am | by Hannah Hickey, Univ. of Washington | Comments

Following rapid warming in the late 20th century, this century has so far seen surprisingly little increase in the average temperature at the Earth’s surface. At first this was a blip, then a trend, then a puzzle for the climate science community. More than a dozen theories have now been proposed for the so-called global warming hiatus, ranging from air pollution to volcanoes to sunspots.

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Sunlight controls the fate of carbon released from thawing Arctic permafrost

August 22, 2014 9:20 am | by Bernie DeGroat, Univ. of Michigan | Comments

Just how much Arctic permafrost will thaw in the future and how fast heat-trapping carbon dioxide will be released from those warming soils is a topic of lively debate among climate scientists. To answer those questions, scientists need to understand the mechanisms that control the conversion of organic soil carbon into carbon dioxide gas. Until now, researchers believed that bacteria were largely responsible.

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Team finds first evidence of spin symmetry in atoms

August 22, 2014 9:07 am | by Laura Ost, NIST | Comments

Just as diamonds with perfect symmetry may be unusually brilliant jewels, the quantum world has a symmetrical splendor of high scientific value. Confirming this exotic quantum physics theory, JILA physicists have observed the first direct evidence of symmetry in the magnetic properties—or nuclear “spins”—of atoms.

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Sunblock poses potential hazard to sea life

August 22, 2014 8:24 am | by American Chemical Society | Comments

The sweet and salty aroma of sunscreen and seawater signals a relaxing trip to the shore. But scientists are now reporting that the idyllic beach vacation comes with an environmental hitch. When certain sunblock ingredients wash off skin and into the sea, they can become toxic to some of the ocean’s tiniest inhabitants, which are the main course for many other marine animals.

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Electric sparks may alter evolution of lunar soil

August 22, 2014 8:18 am | by David Sims, Institute for the Study of Earth, Oceans and Space, Univ. of New Hampshire | Comments

The moon appears to be a tranquil place, but modeling done by Univ. of New Hampshire and NASA scientists suggests that, over the eons, periodic storms of solar energetic particles may have significantly altered the properties of the soil in the moon’s coldest craters through the process of sparking—a finding that could change our understanding of the evolution of planetary surfaces in the solar system.

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Laser device may end pin pricks for diabetics

August 22, 2014 8:07 am | by John Sullivan, Office of Engineering Communications, Princeton Univ. | Comments

Princeton Univ. researchers have developed a way to use a laser to measure people's blood sugar, and, with more work to shrink the laser system to a portable size, the technique could allow diabetics to check their condition without pricking themselves to draw blood.

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Clues uncovered to role of magnetism in iron-based superconductors

August 22, 2014 7:57 am | by Morgan McCorkle, Oak Ridge National Laboratory | Comments

New measurements of atomic-scale magnetic behavior in iron-based superconductors by researchers at Oak Ridge National Laboratory and Vanderbilt Univ. are challenging conventional wisdom about superconductivity and magnetism. The study provides experimental evidence that local magnetic fluctuations can influence the performance of iron-based superconductors, which transmit electric current without resistance at relatively high temperatures.

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Researchers map quantum vortices inside superfluid helium nanodroplets

August 22, 2014 7:41 am | by Kate Greene, Lawrence Berkeley National Laboratory | Comments

Scientists have, for the first time, characterized so-called quantum vortices that swirl within tiny droplets of liquid helium. The research, led by scientists at Lawrence Berkeley National Laboratory, the Univ. of Southern California and SLAC National Accelerator Laboratory, confirms that helium nanodroplets are in fact the smallest possible superfluidic objects and opens new avenues for studying quantum rotation.

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