ScienceDaily: Computers & Math News

Rice-sized laser, powered one electron at a time, bodes well for quantum computing Posted: 15 Jan 2015 11:23 AM PST Researchers have built a rice grain-sized microwave laser, or 'maser,' powered by single electrons that demonstrates the fundamental interactions between light and moving electrons. It is a major step toward building quantum-computing systems out of semiconductor materials.

Physicists detect 'charge instability' across all flavors of copper-based superconductors Posted: 15 Jan 2015 11:17 AM PST Physicists have detected 'charge ordering' in electron-doped cuprate superconductors for the first time. Charge ordering is a ripple-like instability at the electron level that competes with superconductivity and likely suppresses the temperature at which materials demonstrate superconducting properties. Until now, researchers had only observed the phenomenon in other forms of cuprate materials.

Doctors who use health information technology are 'slightly' more likely to get patient data Posted: 15 Jan 2015 09:21 AM PST Physicians who use health information technology systems are only slightly more likely to receive the patient information they need to provide coordinated care, report investigators. Although more than 70 percent of US doctors use electronic health records (EHR), up to half don't routinely receive the data necessary to coordinate patient care effectively, they say.

Facebook sharing can boost involvement with news, information Posted: 15 Jan 2015 09:21 AM PST People who share news on social media sites may connect more with that information -- and stay connected longer -- than people who casually read the news, according to a team of researchers.

No technological replacement exists for bulk data collection Posted: 15 Jan 2015 09:21 AM PST No software-based technique can fully replace the bulk collection of signals intelligence, but methods can be developed to more effectively conduct targeted collection and to control the usage of collected data, says a new report.

Improved solar panels and printed electronics on the horizon with new material discovery Posted: 15 Jan 2015 07:32 AM PST New and improved solar panels could result from the discovery of a new liquid crystal material, making printable organic solar cells better performing.

Huge 3-D displays without 3-D glasses Posted: 15 Jan 2015 07:28 AM PST A new kind of display uses laser beams to send out different pictures into different directions. Each pixel contains lasers and a moving mirror, which directs the laser light. Different pictures can be sent to the right and the left eye of each viewer, so that 3-D effects become possible without the need for special glasses. A prototype has successfully been built, the technology is expected to become widely available in 2016.

Improved interface for a quantum internet Posted: 15 Jan 2015 05:30 AM PST A quantum network requires efficient interfaces over which information can be transferred from matter to light and back. Physicists now show how this information transfer can be optimized by taking advantage of a collective quantum phenomenon.

Video game technology helps measure upper extremity movement in patients with muscular dystrophy Posted: 12 Jan 2015 08:04 AM PST Researchers have developed a way to measure upper extremity movement in patients with muscular dystrophy using interactive video game technology. Their hope is to expand inclusion criteria for clinical trials to incorporate patients using wheelchairs.