Πέμπτη 30 Ιανουαρίου 2014

ScienceDaily: Top Technology News

ScienceDaily: Top Technology News


Physicists create synthetic magnetic monopoles in the lab

Posted: 29 Jan 2014 01:48 PM PST

Researchers have created and photographed synthetic magnetic monopoles under lab conditions. The development lays the foundation for the underlying structure of the natural magnetic monopole – the detection of which would be a revolutionary event comparable to the discovery of the electron.

Breakthrough in rechargeable batteries: New twist to sodium-ion battery technology

Posted: 29 Jan 2014 01:46 PM PST

Engineers have made a breakthrough in rechargeable battery applications. They have demonstrated that a composite paper -- made of interleaved molybdenum disulfide and graphene nanosheets -- can be both an active material to efficiently store sodium atoms and a flexible current collector. The newly developed composite paper can be used as a negative electrode in sodium-ion batteries.

'Rogue' asteroids may be the norm

Posted: 29 Jan 2014 10:51 AM PST

A new map developed by astronomers charts the size, composition, and location of more than 100,000 asteroids throughout the solar system, and shows that rogue asteroids are actually more common than previously thought. Particularly in the solar system's main asteroid belt -- between Mars and Jupiter -- the researchers found a compositionally diverse mix of asteroids.

Modeling buildings by the millions: Building codes in China tested for energy savings

Posted: 29 Jan 2014 10:50 AM PST

China can build its way to a more energy efficient future -- one house, apartment and retail store at a time -- by improving the rules regulating these structures, according to a new study. Scientists have created a unique model that projects how much energy can be saved with changes to China's building energy codes.

First weather map of brown dwarf: Surface of nearest brown dwarf charted

Posted: 29 Jan 2014 10:49 AM PST

The European Southern Observatory's Very Large Telescope has been used to create the first ever map of the weather on the surface of the nearest brown dwarf to Earth. An international team has made a chart of the dark and light features on WISE J104915.57-531906.1B, which is informally known as Luhman 16B and is one of two recently discovered brown dwarfs forming a pair only six light-years from the Sun.

Digital test for toxic genes: Computer algorithm identifies genes whose activation is lethal to bacteria

Posted: 29 Jan 2014 08:52 AM PST

Researchers have developed a new computer algorithm that predicts which metabolic genes are lethal to cells when overproduced. Their findings could help guide metabolic engineering to produce new chemicals and drugs in more cost-effective ways.

Universe's early galaxies grew massive through collisions

Posted: 29 Jan 2014 08:49 AM PST

It has long puzzled scientists that there were enormously massive galaxies that were already old and no longer forming new stars in the very early universe, approximately 3 billion years after the Big Bang. Now new research shows that these massive galaxies were formed by explosive star formation that was set in motion by the collision of galaxies a few billion years after the Big Bang.

Researchers take magnetic waves for a spin

Posted: 29 Jan 2014 08:46 AM PST

Researchers have developed a method for creating and directing fast moving waves in magnetic fields that have the potential to enhance communication and information processing in computer chips and other consumer products.

Glass that bends but doesn't break: Natural forms inspire researchers to develop a technique to make glass less brittle

Posted: 29 Jan 2014 08:45 AM PST

Scientists have successfully taken inspiration from the mechanics of natural structures like seashells in order to significantly increase the toughness of glass.

Mammography beneficial for younger women, study finds

Posted: 29 Jan 2014 08:45 AM PST

Researchers have published new findings that mammography remains beneficial for women in their 40s. According to the study, women between ages 40 and 49 who underwent routine screening mammography were diagnosed at earlier stages with smaller tumors and were less likely to require chemotherapy.

Imaging the development of diabetes: Visualization of a human autoimmune disease in animal models

Posted: 29 Jan 2014 04:58 AM PST

Researchers have developed a technique to study the inflammatory process that takes place in the pancreas during the natural development of type 1 diabetes, allowing for real-time and repeated non-invasive imaging of individual islets of Langerhans. The technique enables the visualization of a human autoimmune disease in animal models that gives us a way to watch the body´s response to new therapeutic strategies that attempt to save islets from this deadly immune system attack.

Protein synthesis and the element of chance

Posted: 29 Jan 2014 04:58 AM PST

In the process of protein synthesis there is a "stochastic" component, i.e., involving random chance, which influences the time the process takes. This aspect has been investigated by two research scientists.

Automated system could efficiently identify high-risk osteoporosis patients

Posted: 28 Jan 2014 12:40 PM PST

An automated system that identifies high-risk osteoporosis patients being treated for fractures and can generate letters encouraging follow-up is an effective way to promote osteoporosis intervention and prevent future fractures, according researchers.

Study examines repeat colonoscopy in patients with polyps referred for surgery without biopsy-proven cancer

Posted: 28 Jan 2014 12:39 PM PST

A new study reports that in the absence of biopsy-proven invasive cancer, a second colonoscopy done at an expert center may be appropriate to reevaluate patients referred for surgical resection. In the study, 71 percent of the lesions referred for surgery were noncancerous polyps (growths in the colon) and were treatable endoscopically. In 26 percent of cases, previous removal was attempted by the referring physician but was unsuccessful.

High-tech 'whole body' scan could improve treatment of bone marrow cancer

Posted: 28 Jan 2014 12:39 PM PST

A pioneering scanning technique that can image a patient's entire body can reveal where cancer is affecting the bones and guide doctors in their choice of treatment, new research reveals.

New online platform gives public opportunities to shape future of NYC

Posted: 28 Jan 2014 12:38 PM PST

A new online tool developed by the Wildlife Conservation Society will enable New Yorkers to develop and share sustainable visions of New York City's future, making it possible for the public to virtually plan their city block by block.

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