science + technology news

Single molecule absorption spectroscopy developed

December 21, 2005

University of Illinois at Urbana-Champaign researchers have developed a powerful new tool for probing molecular structure on surfaces, combining the chemical selectivity of optical absorption spectroscopy with the atomic-scale resolution of scanning tunneling microscopy.

“First, the sample molecule is placed on a transparent silicon substrate,” said Joseph Lyding, a professor of electrical and computer engineering and a researcher at the Beckman Institute. “Laser light will either be absorbed by… read more

Invention: The inkjet-printer pen

December 21, 2005

The pen of the future will use inkjet technology to deliver multiple colors from a battery-powered microelectromechanical print head near the tip that pumps out fine jets of ink from a replaceable cartridge, according to recent patent filings by Silverbrook Research.

Wikipedia alternative aims to be ‘PBS of the Web’

December 21, 2005

Digital Universe, a new online information service launching in early 2006, aims to build on the model of free online encyclopedia Wikipedia by inviting acknowledged experts in a range of subjects to review material contributed by the general public.

Ray Kurzweil to be interviewed on NPR Friday

December 20, 2005

Ray Kurzweil will be featured in a live interview on NPR Science Friday on Friday, December 23rd, at 3:00 to 4:00 pm ET. Science Friday host Ira Flatow will discuss with Kurzweil his latest book, The Singularity Is Near: When Humans Transcend Biology.

(Listen to archived show)

Science Friday is a weekly science talk show broadcast live over public radio stations nationwide as part… read more

Civilisation has left its mark on our genes

December 19, 2005

A detailed look at human DNA has shown that 1800 genes, or roughly 7 percent of the total in the human genome, have changed under the influence of natural selection within the past 50,000 years, probably in response to aspects of modern human culture such as the emergence of agriculture and the shift towards living in densely populated settlements.

NASA Seeks Innovative Ideas for Revolutionary Concepts

December 19, 2005

The NASA Institute for Advanced Concepts is seeking revolutionary ideas to advance the Vision for Space Exploration. Interested parties from outside the agency are invited to submit 2006 Phase 1 proposals by February 13, 2006.

The focus for solicitations is on revolutionary, advanced concepts for architectures and systems that meet NASA mission “grand visions.” The institute’s intention is to discover ideas that may result in beneficial changes to NASA’s… read more

Fantastic voyage into the heart

December 19, 2005

Researchers from Harvard Medical School have found that injecting self-assembling peptide nanofibers loaded with PDGF-BB pro-survival factors into rats, the animals could be protected from heart failures.

The Singularity Is Near ranks in top-selling science and tech books in 2005

December 17, 2005

After an extended run as #1 on the science, technology, and philosophy lists since its publication, Ray Kurzweil’s The Singularity Is Near: When Humans Transcend Biology ends 2005 as the fourth best-selling science book in 2005, even though published late in the year (September 26).

The book was also selected by the Amazon editors as #6 on their “Best Books of 2005: Science” list.… read more

Stretchable silicon could be next wave in electronics

December 16, 2005

University of Illinois at Urbana-Champaign researchers have developed a fully stretchable form of single-crystal silicon with micron-sized, wave-like geometries that can be used to build high-performance electronic devices on rubber substrates.

Functional, stretchable and bendable electronics could be used in applications such as sensors and drive electronics for integration into artificial muscles or biological tissues, structural monitors wrapped around aircraft wings, and conformable skins for integrated robotic sensors, said… read more

At Stake: The Net as We Know It

December 16, 2005

Leading Internet companies are gearing up for a clash with the phone and cable giants early next year as Congress begins to redraft the telecom laws for the broadband era, concerned that the network operators will soon be able to put a chokehold on the Web by blocking consumers from popular sites in favor of their own. Or they could degrade delivery of Web pages whose providers don’t pay extra.… read more

Plan matures for partner to genome quest

December 16, 2005

Geneticists are brewing plans for a collective effort, the Human Epigenome Project, that would map subtle changes in DNA that underlie diseases.

As many as half of the genetic alterations that cause cancer, for example, may be “epigenetic” changes rather than mutations — a small molecule simply latches on to DNA in a process called methylation. This does not change the genetic sequence, but it can still shut a… read more

Three Technology Companies Join to Finance Research

December 16, 2005

Google, Microsoft and Sun Microsystems will underwrite a $7.5 million laboratory on the Berkeley campus. The research focus of The Reliable, Adaptive and Distributed Systems Laboratory will be to apply advances in the use of statistical techniques in machine learning to Web services — from maps to e-mail to online calendars — which have become an increasingly important part of the commercial Internet.

Stems cells as drug delivery carriers to the brain

December 15, 2005

Engineered human brain progenitor cells, transplanted into the brains of rats and monkeys, can effectively integrate into the brain and deliver medicine where it is needed, bypassing the blood-brain barrier, University of Wisconsin-Madison researchers have found.

The Wisconsin team obtained and grew large numbers of progenitor cells from human fetal brain tissue. They then engineered the cells to produce a growth factor known as glial cell line-derived neurotrophic factor… read more

Stamps create DNA nanoarrays

December 15, 2005

Ohio State University researchers have come up with a modified molecular combing technique for creating arrays of stretched DNA molecules that could have applications in nanoelectronics, biological or chemical sensors, and genetic analysis and medical diagnosis.

By patterning a large quantity of stretched DNA molecules into a well-defined array of nanowires, parallel and automated analysis may be realized to achieve higher throughput and reliability, they believe.

Power could cost more than servers, Google warns

December 15, 2005

“If performance per watt is to remain constant over the next few years, power costs could easily overtake hardware costs, possibly by a large margin,” Luiz Andre Barroso said in a September paper published in the Association for Computing Machinery’s Queue.

“The possibility of computer equipment power consumption spiraling out of control could have serious consequences for the overall affordability of computing, not to mention the overall health of… read more

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