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Mammograpy without X-rays, using photoacoustic technique

May 10, 2012

Images of a breast carcinoma: X-ray image (left) and photoacoustic image (right) (credit: University of Twente)

Researchers from Netherlands’ University of Twente and Medisch Spectrum Twente Hospital in Oldenzaal have found that photoacoustics — laser-induced sound — can detect and visualize breast tumors at higher contrast than X-rays and MRI while avoiding ionizing radiation and toxic contrast agents.

“While we’re very early in the development of this new technology, it is promising,” explained researcher Michelle Heijblom, a Ph.D. student at the University of Twente. ”Our hope is… read more

The Coming Wireless Revolution

November 14, 2008

Within the next couple of years, high-bandwidth (tens of megabits per second), far-reaching wireless Internet signals will soon blanket the nation, thanks to a decision by the FCC last week to allow use of megahertz frequency bands that were previously allocated to television broadcasters.

Skylon spaceplane gathers momentum

September 21, 2010

(Reaction Engines)

U.K.-based Reaction Engines’ Skylon plane is designed to take a 12-ton payload  of cargo and passengers into space from a conventional airport and return them back down to the same runway.

The concept for the Skylon is based on a synergistic air-breathing rocket engine (SABRE) that uses jet propulsion to reach the edge of the Earth’s atmosphere before switching to rocket power to get into orbit.… read more

Xerox Develops New Way to Print Invisible Ink

May 31, 2007

Xerox scientists have perfected a new method for printing hidden fluorescent wording using standard digital printing equipment, allowing for an additional layer of security to commonly printed materials such as checks, tickets, coupons, and other high-value documents.

Scientific Method Man

September 2, 2004

The “verifier” method — used by psychologist Gordon Rugg to reveal the Voynich manuscript as a hoax — may revolutionize the scientific method and help solve seemingly unsolvable mysteries, such as the origins of the universe or the cause of Alzheimer’s disease.

The new method detects erroneous reasoning based on pattern-matching, bias, lack of familiarity with other fields of science, differing definitions of key terms, and other factors. It… read more

How Google’s Ear Hears

November 20, 2008

The new voice-search application for the iPhone marks a milestone for spoken interfaces.

Google used the huge amount of data on how people use search to train its algorithms, along with data correlating speech samples with written words, culled from its free directory service, Goog411.

Global to Local: The Social Future as seen by six SF Writers

September 13, 2004

Cory Doctorow, Pat Murphy, Kim Stanley Robinson, Norman Spinrad, Bruce Sterling and Ken Wharton discuss the quality of life in the future.

Improving data transmission speed in fast-moving vehicles

May 22, 2012

Polling current position and channel-state-information (CSI) (credit: )

Researchers from North Carolina State University have devised a method to improve the quality and efficiency of data transmission in Mobile ad hoc networks (MANETs).

MANETs allow people in multiple, rapidly-moving vehicles to communicate with each other, such as in military or emergency-response situations.

“Our goal was to get the highest data rate possible, without compromising the fidelity of the signal,” says Dr. Alexandra… read more

Memristors Make Chips Cheaper

November 25, 2008

Researchers at HP Labs are betting that a cheaper, more energy efficient, fundamental new electronic component–the memristor–will keep computer power increasing for years to come.

40% efficient solar cells to be used for solar electricity

June 4, 2007

Scientists from Spectrolab, Inc., a subsidiary of Boeing, have recently published their research on the fabrication of solar cells that surpass the 40% efficiency milestone—the highest efficiency achieved for any photovoltaic device.

Brain’s ‘Storehouse’ for Memory Molecules Identified

September 27, 2004

Researchers at Duke University Medical Center and Brown University have pinpointed the molecular storehouse that supplies the neurotransmitter receptor proteins used for learning-related changes in the brain.

Their finding constitutes an important step toward understanding the machinery by which neurons alter their connections to establish preferred signaling pathways in the process of laying down new memories. Understanding such machinery could also offer clues to how it might degenerate in… read more

Japan robot lab readies second prototype for work at crippled nuclear reactor

May 29, 2012

future_robotics_tokio

The Future Robotics Technology Center in Japan has developed a new emergency response prototype that will soon be put to work at the crippled Fukushima Daiichi nuclear plant.

“Rosemary” is about the size of a lawn mower and has four extended treaded feet that swivel up and down to help it climb over obstacles.

It can ascend at angles over 60 degrees and can carry instruments and other payload… read more

Drexler launches Metamodern blog

December 5, 2008

K. Eric Drexler launched the Metamodern blog today, with a focus on “research progress, largely in nanoscience and technology, and … how current research is applicable to the development of advanced nanosystems,” providing what KurzweilAI.net believes will be a unique overview of important developments in nanoscience and related fields.

However, he says, Metamodern isn’t intended to be “a blog about nanotechnology”; its scope includes broader issues involving… read more

Treating skin cancer with light

October 19, 2010

Scientists at the University of California, Irvine (UC Irvine) are exploring new ways to image cancerous lesions using LEDs that might advance a technique for treating cancer called photodynamic therapy (PDT).

They will describe their work at the Optical Society’s (OSA) 94th annual meeting, Frontiers in Optics (FiO) 2010 at the Rochester Riverside Convention Center in Rochester, N.Y., from Oct. 24-28.

In PDT, photosensitizing chemicals that… read more

Light Fantastic: Flirting With Invisibility

June 12, 2007

Increasingly, physicists are constructing materials that bend light the “wrong” way, an optical trick that could lead to sharper-than-ever lenses or maybe even make objects disappear.

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