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Nanowire-bridging transistors open way to next-generation electronics

May 19, 2014


Taking the next step beyond silicon integrated circuits, engineers at the University of California, Davis have developed a new approach that allows nonsilicon nanowires and other nanostructures to be combined with silicon surfaces.

It shows promise for a new generation of fast, robust electronic and photonic devices.

Bypassing silicon’s limits

Circuits built on conventionally etched silicon have reached their lower size limit, which restricts operation… read more

America’s Hackable Backbone

August 24, 2007

Supervisory Control and Data Acquisition software, or SCADA, used around the country to control infrastructure like nuclear power plants, water filtration and distribution, trains and subways, dams, manufacturing, and natural gas and oil pipelines, are increasingly connected to the Internet, leaving large parts of America’s critical infrastructure exposed to anyone with moderate information technology training and a laptop.

Dr Raj Reddy makes PCs talk the masses language

December 22, 2004

Raj Reddy, Head of the Carnegie Mellon University Robotics and Artificial Intelligence Lab, is using AI and speech recognition software to empower illiterates in villages in India to use computers.

The computer will also serve as a low-cost TV, DVD player/recorder and conferencing unit.

Military Game Simulations Add Emotional Realism

June 21, 2001

The U.S. Army is adding emotional realism to its battlefield computer simulations, using sophisticated computer animation, voice synthesis, voice recognition, and surround theater sound in research at the University of Southern California, under a $45 million Army grant.

The exercise illustrates the latest challenge among researchers: to focus on the more unpredictable side of the human psyche, simulating emotions and the unexpected effects that panic, stress, anxiety and fear… read more

Scientists read minds with infrared scan

February 11, 2009

Researchers at Canada’s largest children’s rehabilitation hospital have developed a technique that uses infrared light brain imaging to decode preference — with the goal of ultimately opening the world of choice to children who can’t speak or move.

Apple Reactions: The Future of Wireless Audio and Video

September 6, 2007

Apple’s iPod Touch represents the emergence of a class of a low-cost, compact portable computer that can surf the Web, listen to music, and stream millions of videos on YouTube, all from a server–the model of the future.

January 4, 2005

Responses by readers to a request for New Year’s wishes ranged from futuristic visions such as photosynthesis in humans and nanocameras that fit inside cells, to serious themes including recognition for scientists in developing countries and freedom from reliance on oil.

Pro-WikiLeaks cyber army gains strength; thousands join DDoS attacks

December 10, 2010

The retaliatory attacks by pro-WikiLeaks activists are growing in strength as hackers add botnets and thousands of people download an open-source attack tool, security researchers said today.

n recent days, distributed denial-of-service (DDoS) attacks have been launched against several sites, including those belonging to Amazon,MasterCard, PayPal and the Swiss payment transaction firm PostFinance, after each terminated WikiLeaks accounts or pulled the plug on services.

In a new step… read more

Biocompatible silicon developed

July 14, 2001

Silicon can be developed into a biocompatible and biodegradable material that could lead to smaller, smarter and more-interactive implants in the human body. The secret: “porous” silicon ­– bulk silicon that has been deliberately riddled with nanometer-sized holes.
Rather than having to shield a silicon-based device from body tissues and the bloodstream, it is now theoretically possible to construct silicon-based devices that are genuinely “bioactive.”

The surface of a… read more

Reading Thoughts with Brain Imaging

February 19, 2009

Vanderbilt University researchers have reported that from functional magnetic resonance imaging (fMRI) data from visual areas of the brain alone, they could distinguish which of two images subjects were holding in their memory — even several seconds after the images were removed.

The study also pinpointed, for the first time, where in the brain visual working memory is maintained.

Robots That Sense Before They Touch

September 17, 2007

Intel researchers are using electric-field sensors to build pre-touch technology into robots to help them size up objects and people they encounter.

Dr. Nanotech vs. Cancer

January 14, 2005

Nanosensors being developed by California Institute of Technology researchers will simultaneously look for thousands of different biomolecules and could be the basis for more accurate, cheaper, and more convenient cancer tests.

To turn a nanowire into a transistor, the researchers bring each of its ends into contact with metal wires so that a current can be passed through it. They then position an electrode close to the nanowire. Charging… read more

Robots beat human commodity traders

August 12, 2001

Software-based robotic trading agents made seven per cent more cash than people in an IBM test.
Jeffrey Kephart of IBM says his team’s findings could have a much greater impact than the famous victory of IBM’s Deep Blue supercomputer over chess supremo Gary Kasparov. “The impact might be measured in billions of dollars annually,” he says.

He believes that in the future billions of economic robotic agents will replace… read more

Photosynth for Video and Other TechFest Treats

February 26, 2009

Microsoft’s TechFest this year included 37 demos, ranging from gesture-based interfaces to augmented reality and better image search.

Red-light-sensitive protein enables noninvasive neuron studies

Also a step toward developing optogenetic treatments for diseases such as epilepsy and retinitis pigmentosa
July 9, 2014

(Credit: Jose-Luis Olivares/MIT)

MIT engineers have developed the first light-sensitive protein molecule that enables neurons to be silenced noninvasively. Using a light source outside the skull makes it possible to do long-term studies without an implanted light source.

The protein, known as Jaws, also allows a larger volume of tissue to be influenced at once. The researchers described the protein in Nature Neuroscience.

Optogenetics, a technology that allows scientists… read more

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