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Tuesday, November 11, 2014

ScienceDaily: Top News

ScienceDaily: Top News

New materials yield record efficiency polymer solar cells

Posted: 10 Nov 2014 08:04 AM PST

Researchers have found that temperature-controlled aggregation in a family of new semi-conducting polymers is the key to creating highly efficient organic solar cells that can be mass produced more cheaply.

How brown fat fuels up to combat type 2 diabetes and obesity

Posted: 10 Nov 2014 08:01 AM PST

A newly identified signaling pathway that stimulates glucose uptake in brown fat cells might be useful for treating type 2 diabetes and obesity.

Moderate drinking is healthy only for some people

Posted: 10 Nov 2014 06:07 AM PST

A new study confirms that moderate alcohol consumption can protect against coronary heart disease. But only for the 15% of the population that have a particular genotype.

Astronomers discover first 'lightning' from a black hole

Posted: 10 Nov 2014 06:07 AM PST

An international group of researchers has discovered the first 'lighting' from a black hole, with variations in brilliance more powerful than ever observed in an extragalactic object. The emission, the researchers suggest in their study, "is associated with pulsar-like particle acceleration by the electric field across a magnetospheric gap at the base of the radio jet."

True story behind galactic crash revealed

Posted: 10 Nov 2014 05:36 AM PST

The new MUSE instrument on ESO's Very Large Telescope has provided researchers with the best view yet of a spectacular cosmic crash. The new observations reveal for the first time the motion of gas as it is ripped out of the galaxy ESO 137-001 as it ploughs at high speed into a vast galaxy cluster. The results are the key to the solution of a long-standing mystery — why star formation switches off in galaxy clusters.

Woodland bat species sweats it out in the tropics

Posted: 10 Nov 2014 05:35 AM PST

A bat species thought to be restricted to temperate forests has been found living thousands of miles from its known range in the sweltering heat of the southern Indian rainforest.

Unique Roman relief discovered: Depiction of unknown god in Turkey; Relics from 2,000 years of cult history excavated

Posted: 10 Nov 2014 05:35 AM PST

A bearded deity has been discovered with astral symbols. Archaeologists excavated the unique Roman relief depicting an unknown god in an ancient sanctuary in Turkey. According to a first assessment, the one and a half meter (five foot) high basalt stele which was used as a buttress in the wall of a monastery shows a fertility or vegetation god, as classical scholar and excavation director said.

Climate variability has an opposing impact on marine life and tree growth

Posted: 10 Nov 2014 05:34 AM PST

The same climatic drivers that enhance upwelling of nutrient-rich ocean waters and support of marine productivity can result in lower precipitation on land and slower tree-growth. Tree-ring chronologies helped to explain how upwelling was happening during the past 600 years.

New effective, safe and cheap treatment strategy for rheumatoid arthritis

Posted: 10 Nov 2014 05:34 AM PST

A new drug combination for rheumatoid arthritis treats the disease just as well as other intensive treatment strategies but with less medication and fewer side effects at a significantly lower cost.

Crustaceans win battle against being feminized

Posted: 10 Nov 2014 05:34 AM PST

Male crustaceans can 'lock down' their maleness to avoid being completely feminized by seawater contaminated by feminizing pollutants, according to scientists.

New technique for generating electricity

Posted: 10 Nov 2014 05:34 AM PST

Research scientists have demonstrated a new technique for generating electrical energy. The new method can be used in harvesting energy from mechanical vibrations of the environment and converting it into electricity. Energy harvesters are needed, for example, in wireless self-powered sensors and medical implants, where they could ultimately replace batteries. In the future, energy harvesters can open up new opportunities in many application areas such as wearable electronics.

Astronomers dissect the aftermath of a supernova

Posted: 10 Nov 2014 05:33 AM PST

Astronomers have used radio telescopes in Australia and Chile to see inside the remains of a supernova. The supernova, known as SN1987A, was first seen by observers in the Southern Hemisphere in 1987 when a giant star suddenly exploded at the edge of a nearby dwarf galaxy called the Large Magellanic Cloud. In the two and a half decades since then the remnant of Supernova 1987A has continued to be a focus for researchers the world over, providing a wealth of information about one of the Universe's most extreme events.

New natural supplement relieves canine arthritis

Posted: 10 Nov 2014 05:22 AM PST

Arthritis pain in dogs can be relieved, with no side effects, by a new product based on medicinal plants and dietary supplements. Two formulas were developed. The first formula, composed of curcumin, devil's claw, black current, Indian frankincense (Salai), willow bark, pineapple bromelaine and camomile, was developed to treat arthritis-induced inflammation. The second included the same ingredients, plus dietary supplements such as omega 3, chondroitin sulfate and glutamine, and was formulated in the hope that it would promote the regeneration of articulations.

Untangling unknown structures in the mix

Posted: 08 Nov 2014 06:54 AM PST

The characterization of individual components in an unknown crystalline powder mixture is a challenge that has eluded scientists for many years. Now, researchers have for the first time invented a methodology to accurately determine the crystal structures present in such mixtures.

Multifunctional testing instrument helps improve production of laser-heated hard disk drives with enhanced storage capacities

Posted: 08 Nov 2014 06:54 AM PST

Today''s hard disk drives can hold terabytes of digital data, but manufacturers are having trouble squeezing more storage capacity into these devices using conventional procedures. Now, a new technique that promises to solve this impasse -- heat-assisted magnetic recording (HAMR) -- can be integrated more efficiently into future hard drives thanks to an analytical tool.

Long-lived catalyst facilitates first steps toward viable small-scale on-board hydrogen generator

Posted: 08 Nov 2014 06:54 AM PST

Researchers are helping to advance the development of hydrogen-powered cars by producing innovative materials that could make on-board hydrogen generators a reality. Hydrogen is a renewable resource with the potential to power everything from households to cars, but its use is currently limited by a lack of green and practical production methods.

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