Tech

How do cold ions slide

Things not always run smoothly. It may happen, actually, that when an object slides on another, the advancement may occur through a 'stop and go' series in the characteristic manner which scientists call "stick-slip", a pervasive phenomenon at every scale, from earthquakes to daily-life objects, up to the "nano" dimension.

Tomatoes:World's favorite fruit now better-tasting and longer-lasting

Tomatoes, said to be the world's most popular fruit, can be made both better-tasting and longer-lasting thanks to UK research with purple GM varieties.

"Working with GM tomatoes that are different to normal fruit only by the addition of a specific compound, allows us to pinpoint exactly how to breed in valuable traits," said Professor Cathie Martin from the John Innes Centre.

The research could also lead to GM varieties with better flavour, health and shelf life characteristics because even higher levels of the compounds can be achieved.

Fetch, boy! Study shows homes with dogs have more types of bacteria

New research from North Carolina State University and the University of Colorado shows that households with dogs are home to more types of bacteria – including bacteria that are rarely found in households that do not have dogs. The finding is part of a larger study to improve our understanding of the microscopic life forms that live in our homes.

Swine flu pandemic of 2009 more deadly for younger adults, UCI study finds

Irvine, Calif. – As the world prepares for what may be the next pandemic strain of influenza virus, in the H7N9 bird flu, a new UC Irvine study reveals that the 2009 H1N1 swine flu pandemic was deadliest for people under the age of 65, while those 65 and over had greater immunity due to previous exposure to similar viruses.

Tests lead to doubling of fuel cell life

Researchers working to improve durability in fuel cell powered buses, including a team from Simon Fraser University, have discovered links between electrode degradation processes and bus membrane durability.

The team is quantifying the effects of electrode degradation stressors in the operating cycle of the bus on the membrane lifetime.

Innovation could bring flexible solar cells, transistors, displays

WEST LAFAYETTE, Ind. – Researchers have created a new type of transparent electrode that might find uses in solar cells, flexible displays for computers and consumer electronics and future "optoelectronic" circuits for sensors and information processing.

Fish oil supplements may help fight against Type 2 diabetes

Chevy Chase, MD—Widely-used fish oil supplements modestly increase amounts of a hormone that is associated with lower risk of diabetes and heart disease, according to a study accepted for publication in The Endocrine Society's Journal of Clinical Endocrinology & Metabolism (JCEM).

More emphasis needed on recycling and reuse of Li-ion batteries

The discovery of potential environmental and human health effects from disposal of millions of rechargeable lithium-ion batteries each year has led scientists to recommend stronger government policies to encourage recovery, recycling and reuse of lithium-ion (Li-ion) battery materials. That's the conclusion of a new paper in the ACS journal Environmental Science & Technology.

Fish oil may help the heart beat mental stress

Bethesda, Md. (May 22, 2013)—The omega 3 fatty acids in fish oil have long been thought to protect against cardiovascular disease—so much so that the American Heart Association currently recommends eating at least two servings of fish a week, particularly fatty varieties rich in omega 3s. However, the mechanism behind this protective effect still remains a mystery. In a new study, scientists led by Jason R.

Solar and lithium ion car race winners announced

Ninety-seven teams from 28 Colorado schools participated in today's car competitions hosted by the U.S. Department of Energy's National Renewable Energy Laboratory (NREL).

The student teams raced solar and lithium ion powered vehicles they designed and built themselves.

Trophies for the fastest lithium-ion powered model cars were given to Colorado students from University School, Greeley, "Lucky Charms," first place; Southern Hills Middle School, Boulder, "Fat Albert,", second place; and Southern Hills, "Green Spartan," third place.

New method for producing clean hydrogen

DURHAM, N.C. -- Duke University engineers have developed a novel method for producing clean hydrogen, which could prove essential to weaning society off of fossil fuels and their environmental implications.

While hydrogen is ubiquitous in the environment, producing and collecting molecular hydrogen for transportation and industrial uses is expensive and complicated. Just as importantly, a byproduct of most current methods of producing hydrogen is carbon monoxide, which is toxic to humans and animals.

Going green: Nation equipped to grow serious amounts of pond scum for fuel

RICHLAND, Wash. – A new analysis shows that the nation's land and water resources could likely support the growth of enough algae to produce up to 25 billion gallons of algae-based fuel a year in the United States, one-twelfth of the country's yearly needs.

The findings come from an in-depth look at the water resources that would be needed to grow significant amounts of algae in large, specially built shallow ponds. The results were published in the May 7 issue of Environmental Science and Technology, published by the American Chemical Society.

Rice unveils method for tailoring optical processors

HOUSTON -- (May 21, 2013) -- Rice University scientists have unveiled a robust new method for arranging metal nanoparticles in geometric patterns that can act as optical processors that transform incoming light signals into output of a different color. The breakthrough by a team of theoretical and applied physicists and engineers at Rice's Laboratory for Nanophotonics (LANP) is described this week in the Proceedings of the National Academy of Sciences.

4G Vs 3G: A Day In The Life Of Your Internet Speed

What is the difference between 4G and a 3G connection? It turns out there is quite a bit.

While 3G was designed to offer download speed of up to 3.1 Mbps, 4G is designed to be as fast as optical fiber: so up to 10X faster. 4G also offers QoS support, like land-based data networks. QoS means it possible to vary priority levels for different data streams.

Quality isn't all that important in an email, speed is the only factor, but quality matters when you are watching a show.

Human-like opponents lead to more aggression in video game players, UConn study finds

Video games that pit players against human-looking characters may be more likely to provoke violent thoughts and words than games where monstrous creatures are the enemy, according to a new study by researchers at the University of Connecticut and Wake Forest University.