Tech

Layered '2-D nanocrystals' promising new semiconductor

WEST LAFAYETTE, Ind. - Researchers are developing a new type of semiconductor technology for future computers and electronics based on "two-dimensional nanocrystals" layered in sheets less than a nanometer thick that could replace today's transistors.

The layered structure is made of a material called molybdenum disulfide, which belongs to a new class of semiconductors - metal di-chalogenides - emerging as potential candidates to replace today's technology, complementary metal oxide semiconductors, or CMOS.

Computer-aided Detection Finds Invasive Breast Cancer Earlier, Increases Diagnostic Tests in Women Without Cancer

Using computer-aided detection (CAD) to assess mammograms increases diagnosis of early stage cancers, but also increases diagnostic testing for women without breast cancer. Researchers suggest these findings are likely fuel breast cancer screening debates.

With CAD, radiologists use computer algorithms to mark and reassess potentially suspicious lesions that may have been missed on initial mammogram review. Despite limited evidence of its clinical effectiveness, the use of CAD in screening mammography has been broadly adopted.

UCLA engineers craft new material for high-performing 'supercapacitors'

Taking a significant step toward improving the power delivery of systems ranging from urban electrical grids to regenerative braking in hybrid vehicles, researchers at the UCLA Henry Samueli School of Engineering and Applied Science have synthesized a material that shows high capability for both the rapid storage and release of energy.

Smartphone way to lose weight

Their study is the first to evaluate a smartphone app as the sole method for monitoring weight loss, with researchers creating My Meal Mate to trial against similar products for monitoring food intake, an online food diary and the traditional paper version.

Laser liposuction melts fat, results in tighter skin

NEW ORLEANS (April 15, 2013)—A new, minimally invasive treatment that uses lasers to melt fat could replace the "tummy tuck," suggests research on more than 2,000 people being presented at the Society of Interventional Radiology's 38th Annual Scientific Meeting in New Orleans.

Better batteries from waste sulfur

A new chemical process can transform waste sulfur into a lightweight plastic that may improve batteries for electric cars, reports a University of Arizona-led team. The new plastic has other potential uses, including optical uses.

The team has successfully used the new plastic to make lithium-sulfur batteries.

"We've developed a new, simple and useful chemical process to convert sulfur into a useful plastic," lead researcher Jeffrey Pyun said.

Decreasing KV reduces radiation dose in lumbar spine CT without compromising quality

An algorithm that takes the patient's size into consideration can cut radiation dose by 41% in lumbar spine CT without compromising the diagnostic quality of the images, a new study shows.

Compact multipurpose scooter for crowded megacities

The design brief for the VOI was to develop a two-wheel transporter that is as agile and affordable as a scooter and, at the same time, as safe and comfortable as a car. With its compact size and maneuverability, the two-wheel electric scooter is designed as a transporter for densely populated megacities and offers a comprehensive solution to metropolises where congested traffic is a major problem.

New device could cut costs on household products, pharmaceuticals

Sometimes cost saving comes in nanoscale packages.

A new procedure that thickens and thins fluid at the micron level could save consumers and manufacturers money, particularly for soap products that depend on certain molecules to effectively deal with grease and dirt. Researchers at the University of Washington published their findings online April 9 in the Proceedings of the National Academy of Sciences.

Atomic force microscopy decodes the secrets of our gut

A new technique based on atomic force microscopy was developed at the Institute of Food Research to help 'read' information encoded in the gut lining.

The lining of our gut is an important barrier between the outside world and our bodies. Laid out, the gut lining would cover the area of a football pitch. It must let nutrients from our foods through, but prevent invasion by disease-causing bacteria, at the same time hosting the trillions of beneficial bacteria needed for proper digestion and immune function.

Exercise or make dinner? Study finds adults trade one healthy act for another

COLUMBUS, Ohio – American adults who prepare their own meals and exercise on the same day are likely spending more time on one of those activities at the expense of the other, a new study suggests.

The research showed that a 10-minute increase in food preparation time was associated with a lower probability of exercising for 10 more minutes – for both men and women. The finding applied to single and married adults as well as parents and those who have no children.

Full range of treatment settings and their effects on radiofrequency heat lesion size

April 11, 2013, Fort Lauderdale, Fla. -- Changing the parameters used to deliver radiofrequency (RF) treatment greatly affects the size of the resulting heat lesion, researchers reported today in a study expected to deliver greater precision and more treatment options in interventional pain management. Results were presented at the 29th Annual Meeting of the American Academy of Pain Medicine.

New software alleviates wireless traffic

ANN ARBOR—The explosive popularity of wireless devices—from WiFi laptops to Bluetooth headsets to ZigBee sensor nodes—is increasingly clogging the airwaves, resulting in dropped calls, wasted bandwidth and botched connections.

New software being developed at the University of Michigan works like a stoplight to control the traffic and dramatically reduce interference.

Cost-saving measure to upgrade ethanol to butanol -- a better alternative to gasoline

NEW ORLEANS, April 11, 2013 — Scientists today reported a discovery that could speed an emerging effort to replace ethanol in gasoline with a substantially better fuel additive called butanol, which some experts regard as "the gasoline of the future." Their report on this discovery, which holds potential to reduce the costs of converting ethanol factories to production of butanol, came at the 245th National Meeting & Exposition of the American Chemical Society, the world's largest scientific society.

Diamond as a building material for optical circuits

The application of light for information processing opens up a multitude of possibilities. However, to be able to adequately use photons in circuits and sensors, materials need to have particular optical and mechanical properties. Researchers at the Karlsruhe Institute of Technology (KIT) have now for the first time used polycrystalline diamond to manufacture optical circuits and have published their results online in Nature Communications (DOI: 10.1038/ncomms2710).