Tech

Imagine a solid ball rolling down a slightly inclined ramp. What could be perceived as child's play is the focus of serious theoretical research by Manoj Chaudhury and Partho Goohpattader, two physicists from Lehigh University, Bethlehem, Pensylvania, USA. Their study, which is about to be published in EPJ E, has one thing in common with childhood behaviour. It introduces a mischievous idea, namely studying the effect of random noise, such as vibrations, on the ball. They found it could lower the energy barrier to set the ball in motion.

NEW DELHI—(17 December 2012)—New research released today, on the eve of an international conference on land and forest rights, blames India's government agencies and investors for a growing spate of violent clashes in the nation's forest and tribal areas. A massive transfer of resources from the rural poor to investors is underway, inciting resistance and conflicts in virtually all states of India.

Berkeley, Calif., Dec.17,2012—Researchers with the U.S. Department of Energy (DOE)'s Lawrence Berkeley National Laboratory (Berkeley Lab) and the University of California, Berkeley, have developed an elegant and powerful new microscale actuator that can flex like a tiny beckoning finger. Based on an oxide material that expands and contracts dramatically in response to a small temperature variation, the actuators are smaller than the width of a human hair and are promising for microfluidics, drug delivery, and artificial muscles.

University of Colorado Boulder Assistant Professor Nikolaus Correll likes to think in multiples. If one robot can accomplish a singular task, think how much more could be accomplished if you had hundreds of them.

Correll and his computer science research team, including research associate Dustin Reishus and professional research assistant Nick Farrow, have developed a basic robotic building block, which he hopes to reproduce in large quantities to develop increasingly complex systems.

By using electric voltage instead of a flowing electric current, researchers from UCLA's Henry Samueli School of Engineering and Applied Science have made major improvements to an ultra-fast, high-capacity class of computer memory known as magnetoresistive random access memory, or MRAM.

New research from North Carolina State University provides molecular-level insights into how cellulose – the most common organic compound on Earth and the main structural component of plant cell walls – breaks down in wood to create "bio-oils" which can be refined into any number of useful products, including liquid transportation fuels to power a car or an airplane.

Wearable technology is not only for sports and fashion enthusiasts it can also be used to monitor and aid clinical rehabilitation according to new research published in BioMed Central's open access journal BioMedical Engineering OnLine.

Neurorehabilitation researchers from Italy have developed a low cost, wearable system, consisting of strain sensors made of conductive elastomers printed onto fabric. A low voltage battery powers the sensors, which are then able to send data to a computer via Bluetooth.

CHAMPAIGN, Ill. — On the road to smaller, high-performance electronics, University of Illinois researchers have smoothed one speed bump by shrinking a key, yet notoriously large element of integrated circuits.

Three-dimensional rolled-up inductors have a footprint more than 100 times smaller without sacrificing performance. The researchers published their new design paradigm in the journal Nano Letters.

"It's a new concept for old technology," said team leader Xiuling Li, a professor of electrical and computer engineering at the University of Illinois.

Montreal, December 13, 2012 – From Gran Turismo to WWE Smackdown, sports-based video games represent a wide variety of pursuits. When it comes to the people who actually play those games, however, little is known. How do sports video game players fit their games into a larger sports-related context? How does their video game play inform their media usage and general sports fandom?

Randomly distributed sticky spots which are integral to the development of stem cells by maximising adhesion and acting as internal scaffolding have been artificially recreated by experts from the University of Sheffield for the first time.

Using synthetic foam type materials to mimic the natural process – known as the extracellular matrix or ECM – scientists, from the University of Sheffield and University of California San Diego, created the random stickiness required for stem cells to properly adhere.

PITTSBURGH—What is everyone looking at? It's a common question in social settings because the answer identifies something of interest, or helps delineate social groupings. Those insights someday will be essential for robots designed to interact with humans, so researchers at Carnegie Mellon University's Robotics Institute have developed a method for detecting where people's gazes intersect.

Extinct microbes in fecal samples from archaeological sites across the world resemble those found in present-day rural African communities more than they resemble the microbes found in the gut of cosmopolitan US adults, according to research published December 12 in the open access journal PLOS ONE by Cecil Lewis and colleagues from the University of Oklahoma.

Are you allergic to peanuts and worried there might be some in that cookie? Now you can find out using a rather unlikely source: your cell phone.

A team of researchers from the UCLA Henry Samueli School of Engineering and Applied Science has developed a lightweight device called the iTube, which attaches to a common cell phone to detect allergens in food samples. The iTube attachment uses the cell phone's built-in camera, along with an accompanying smart-phone application that runs a test with the same high level of sensitivity a laboratory would.

COLUMBUS, Ohio – A new study of the batteries commonly used in hybrid and electric-only cars has revealed an unexpected factor that could limit the performance of batteries currently on the road.

Researchers led by Ohio State University engineers examined used car batteries and discovered that over time lithium accumulates beyond the battery electrodes – in the "current collector," a sheet of copper which facilitates electron transfer between the electrodes and the car's electrical system.