Tech
Electronics that can be bent and stretched might sound like science fiction. But Uppsala researcher Zhigang Wu, working with collaborators, has devised a wireless sensor that can stand to be stretched. For example, the sensor can measure intensive body movements and wirelessly send information directly to a computer. The findings are now being presented in the journal Advanced Functional Materials.
Children as young as ten are making themselves vomit in order to lose weight and the problem is more common in boys than girls, according to a study of nearly 16,000 school pupils published online early, ahead of print publication, by the Journal of Clinical Nursing.
The findings have prompted researchers to issue a warning that self-induced vomiting is an early sign that children could develop eating disorders and serious psychological problems, such as binge eating and anorexia.
MADISON, WI, JUNE 15, 2011 -- Assessing the environmental risk of pesticide use is an important, complex task that requires knowledge of the equilibrium sorption parameter. This helps researchers assess the risk of pesticides leaching into groundwater. For cost-effective assessments, this is usually determined through batch experiments that find the amount of pesticide in test soils as a function of concentration at a constant temperature. These experimental conditions differ considerably from real-world conditions.
ST. PAUL, Minn. – A new study suggests that consuming olive oil may help prevent a stroke in older people. The research is published in the June 15, 2011, online issue of Neurology®, the medical journal of the American Academy of Neurology.
OAK RIDGE, Tenn., June 15, 2011 — A first of its kind combination of experiment and simulation at the Department of Energy's Oak Ridge National Laboratory is providing a close-up look at the molecule that complicates next-generation biofuels.
Lignin, a major component of plant cell walls, aggregates to form clumps, which cause problems during the production of cellulosic ethanol. The exact shape and structure of the aggregates, however, have remained largely unknown.
VERNON – A long-term study verifies multi-paddock grazing improves vegetation, soil health and animal production relative to continuous grazing in large-scale ranches, according to Texas AgriLife Research scientists.
The study measured the impacts on vegetation and soils achieved by commercial ranchers who adapted management practices in response to changing circumstances to achieve desirable outcomes, said Dr. Richard Teague, AgriLife Research rangeland ecology and management scientist in Vernon.
PHILADELPHIA—New engineering research at the University of Pennsylvania demonstrates that polaritons have increased coupling strength when confined to nanoscale semiconductors. This represents a promising advance in the field of photonics: smaller and faster circuits that use light rather than electricity.
A new study by the University of California, San Francisco's Cardiac Electrophysiology Service seeks to discover for the first time the true causes of sudden cardiac death (SCD), why it is more prevalent in some demographic populations, and whether it is too often inaccurately cited as a cause of death.
Despite spending billions on buying computers - some well-heeled schools even buy iPads for kindergarteners - young adults don't know any more about using computers than older people. They are Web savvy but lack knowledge about federal government and so may struggle to use the web for political participation, even though it should be easier.
Researchers from North Carolina State University have designed a sensor that can measure strain in structural materials and is capable of healing itself – an important advance for collecting data to help us make informed decisions about structural safety in the wake of earthquakes, explosions or other unexpected events.
Scientists are reporting development of the first self-powered nano-device that can transmit data wirelessly over long distances. In a study in ACS's journal Nano Letters, they say it proves the feasibility of a futuristic genre of tiny implantable medical sensors, airborne and stationary surveillance cameras and sensors, wearable personal electronics, and other devices that operate independently without batteries on energy collected from the environment.
Harmful mineral oils from the printing inks used on cardboard can migrate into food if recycled cardboard is used for food packaging. It may contaminate food even if the recycled cardboard is used for the corrugated card transport box that holds individual packs. In tests on experimental packs of fine noodles, researchers in Zurich, Switzerland, found that food rapidly absorbed 10 times the recommended limit for concentration of these contaminating oils from the transport box. The findings were published in the latest edition of Packaging Technology and Science.
Today's television programs are designed to trigger your emotions and your mind through your senses of sound and sight. But what if they could trigger a few more? What if you could smell or taste the cheesy slices of pizza being eaten by your favorite characters on TV? Is it possible? Would audiences enjoy the experience? Would advertisers jump on the opportunity to reach consumers in a new way?
CAMBRIDGE, Mass. -- Millions of Americans have implantable medical devices, from pacemakers and defibrillators to brain stimulators and drug pumps; worldwide, 300,000 more people receive them every year. Most such devices have wireless connections, so that doctors can monitor patients' vital signs or revise treatment programs. But recent research has shown that this leaves the devices vulnerable to attack: In the worst-case scenario, an attacker could kill a victim by instructing an implantable device to deliver lethal doses of medication or electricity.