Τετάρτη 27 Ιουνίου 2012

ScienceDaily: Top Science News

ScienceDaily: Top Science News


Mind reading from brain recordings? 'Neural fingerprints' of memory associations decoded

Posted: 26 Jun 2012 02:27 PM PDT

Researchers have begun to show that it is possible to use brain recordings to reconstruct aspects of an image or movie clip someone is viewing, a sound someone is hearing or even the text someone is reading. A new study brings this work one step closer to actual mind reading by using brain recordings to infer the way people organize associations between words in their memories.

Musical robot companion enhances listener experience

Posted: 26 Jun 2012 01:38 PM PDT

Wedding DJs everywhere should be worried about job security now that a new robot is on the scene. Shimi, an interactive musical companion recommends songs, dances to the beat and keeps the music pumping based on listener feedback.

Scientists find new primitive mineral in meteorite

Posted: 26 Jun 2012 10:19 AM PDT

In 1969, an exploding fireball tore through the sky over Mexico, scattering thousands of pieces of meteorite across the state of Chihuahua. More than 40 years later, the Allende meteorite is still serving the scientific community as a rich source of information about the early stages of our solar system's evolution. Recently, scientists discovered a new mineral embedded in the space rock -- one they believe to be among the oldest minerals formed in the solar system.

Moderate coffee consumption offers protection against heart failure, study suggests

Posted: 26 Jun 2012 10:18 AM PDT

While current American Heart Association heart failure prevention guidelines warn against habitual coffee consumption, some studies propose a protective benefit, and still others find no association at all. Amidst this conflicting information, new research attempts to shift the conversation from a definitive yes or no, to a question of how much.

Gravitational lensing: Astronomers spot rare arc from hefty galaxy cluster

Posted: 26 Jun 2012 10:12 AM PDT

Seeing is believing, except when you don't believe what you see. Astronomers using NASA's Hubble Space Telescope have found a puzzling arc of light behind an extremely massive cluster of galaxies residing 10 billion light-years away. The galactic grouping, discovered by NASA's Spitzer Space Telescope, was observed as it existed when the universe was roughly a quarter of its current age of 13.7 billion years. The giant arc is the stretched shape of a more distant galaxy whose light is distorted by the monster cluster's powerful gravity, an effect called gravitational lensing. The trouble is, the arc shouldn't exist.

Better surfaces could help dissipate heat

Posted: 26 Jun 2012 08:52 AM PDT

Researchers at MIT have found that relatively simple, microscale roughening of a surface can dramatically enhance its transfer of heat. Such an approach could be far less complex and more durable than approaches that enhance heat transfer through smaller patterning in the nanometer (billionths of a meter) range. The new research also provides a theoretical framework for analyzing the behavior of such systems, pointing the way to even greater improvements.

Seeing inside tissue for no-cut surgeries: Researchers develop technique to focus light inside biological tissue

Posted: 26 Jun 2012 08:43 AM PDT

Imagine if doctors could perform surgery without ever having to cut through your skin. Or if they could diagnose cancer by seeing tumors inside the body with a procedure that is as simple as an ultrasound. Thanks to a new technique, all of that may be possible in the not-so-distant future.

Rewriting quantum chips with a beam of light: Laser technique brings ultrafast computing closer to reality

Posted: 26 Jun 2012 08:43 AM PDT

The promise of ultrafast quantum computing has moved a step closer to reality with a technique to create rewritable computer chips using a beam of light. Researchers used light to control the spin of an atom's nucleus in order to encode information.

Scientists spark new interest in the century-old Edison battery

Posted: 26 Jun 2012 08:43 AM PDT

Scientists have dramatically improved the performance of Thomas Edison's nickel-iron battery. The enhanced device could be used in electric vehicles, much as Edison originally envisioned.

Curry spice, omega-3 fatty acid preserve walking ability following spinal-cord injury

Posted: 26 Jun 2012 08:39 AM PDT

Researchers discovered that a diet enriched with a popular omega-3 fatty acid and an ingredient in curry spice preserved walking ability in rats with spinal-cord injury. The findings suggest that these dietary supplements help repair nerve cells and maintain neurological function after degenerative damage to the neck.

Biologists reveal potential 'fatal flaw' in iconic sexual selection study

Posted: 26 Jun 2012 06:27 AM PDT

A classic study from more than 60 years ago that reportedly showed that males are more promiscuous and females more choosy in selecting mates may be wrong, say life scientists who are the first to repeat the historic experiment using the same methods.

Cheaper cell phones with better signal quality: World's most powerful nanoscale microwave oscillators developed

Posted: 26 Jun 2012 06:27 AM PDT

Researchers have developed the world's most powerful nanoscale microwave oscillators. The new electron spin-based oscillators use a spin-transfer torque magnetoresistive random access memory or STT-RAM, which has great potential over other types of memory currently in use for both speed and power efficiency. The new oscillators could lead to mobile communication devices that are less expensive to manufacture and deliver a much better signal quality.

New toilet turns human waste into electricity and fertilizer

Posted: 26 Jun 2012 04:29 AM PDT

Scientists have invented a new toilet system that will turn human waste into electricity and fertilizers and also reduce the amount of water needed for flushing by up to 90 per cent compared to current toilet systems in Singapore.

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