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Spontaneous Assembly: A New Look At How Proteins Assemble And Organize Themselves Into Complex Patterns

July 9, 2009
PALM composite of an E.coli bacterial cell shows the organization of proteins in the chemotaxis signaling network (DOE/Lawrence Berkeley National Laboratory)

The chemotaxis network of signaling proteins in E.coli bacteria is able to spontaneously form from clusters of proteins in complex pattterns in “stochastic self-assembly,” a team of researchers has found, using an ultrahigh-precision visible light microscopy technique called PALM (Photo-Activated Localization Microscopy).

Signaling proteins direct the movement of the bacteria towards or away from sugars, amino acids, and many other soluble molecules in response to environmental cues.… read more

Watching Over You

August 21, 2005

The MDKeeper, from Tadiran Spectralink, provides round-the-clock medical monitoring for at-risk patients.

It is worn like a watch and integrates various medical sensors, a Siemens GSM/GPRS radio module, and a built-in cellular speakerphone and processing unit to measure and transmit data to caregivers.

The MDKeeper measures vital signs, including pulse rate, cardiac rhythm (ECG or EKG), and blood oxygen levels. It can either store the data and transmit… read more

Discovering Novel Pathogens

February 13, 2008

The next-generation sequencing technology used to assemble James Watson’s genome has been used to identify novel pathogens.

This is the first time that “unbiased high-throughput pyrosequencing” (or “454 sequencing”) has been used to probe for the cause of an infectious-disease outbreak in humans. Several other identification techniques failed to identify the never-before-seen virus.

Kurzweil to discuss radical life-extension and the Singularity at Alcor conference

September 30, 2002

Ray Kurzweil will present a comprehensive program for extending longevity and vitality that he devised in collaboration with longevity expert Terry Grossman, M.D. in “A Bridge to a Bridge to a Bridge,” a talk at the Fifth Alcor Conference on Extreme Life Extension in Newport Beach, CA, November 15-17. Based on correcting imbalances in metabolic processes, the program is the subject of a forthcoming book and is a… read more

Scientists reveal secret of girl with ‘all seeing eye’

July 21, 2009
MRI scan shows how the retinal optic nerve has connected to the left hemisphere of the brain

a girl’s brain had rewired itself to process information from the right and left visual fields in spite of her not having a whole brain at birth, University of Glasgow researchers have found.

4G prototypes reach blistering speeds

September 5, 2005

Cellphones capable of transmitting data at a gigabit per second have been demonstrated by NTT DoCoMo in Japan.

In experiments, prototype phones were used to view 32 high definition video streams, while travelling in an automobile at 20 kilometers per hour.

Multiple-input-multiple-output (MIMO) multiplexing was also used to send data via various routes across a network to further increase data capacity.

The Chinese Government’s Plans for Nanotechnology

February 18, 2008

University of California at Santa Barbara researchers say China aims to leapfrog the United States in technological development with substantial investment in nanotechnology.

Nanotechnology research is one of four Chinese “science Megaprojects” that have the central purpose of catching the country up to US research by 2020.

Prototype glass sheet computer unveiled

October 23, 2002

A transparent computer processor has been printed on to a flat plate of glass by researchers at Sharp’s Japanese laboratory. Their success suggests ultra-thin computers and televisions could in the future be built entirely on a single sheet of glass.

The new “sheet computer” uses a relatively new material called continuous grain silicon, which conducts electrons up to 600 times faster than the amorphous silicon used in liquid crystal… read more

Scientists Study How to Stack the Deck for Organic Solar Power

July 29, 2009

National Institute of Standards and Technology scientists have developed a new class of economically viable solar power cells using organic photovoltaics.

Mobile fuel cells set to take off in 2006

September 16, 2005

Sales of long-lasting and renewable fuel cells for powering mobile devices will reach $1.6 billion by 2010, according to market research firm NanoMarkets.

Nanopores that can recognize, separate proteins and small molecules

February 26, 2008

University of Massachusetts Amherst chemists have created nanopores that can recognize and separate small molecules and proteins based on size, charge and how strongly they are repelled by water.

It could be used in many applications including diagnostic medical tests, DNA sequencing and fuel-cell membranes.

Nanotechnology and Mass Destruction

November 6, 2002

A recent essay in Disarmament Diplomacy proposed an ‘Inner Space Treaty’ to ban all nanotechnology research because of fears it might lead to nanowarfare and “Grey Goo” scenarios.

AndrĂ© Gsponer concurs with the need for a treaty but argues that the timetable needs to be moved up. He argues that, with the ban on nuclear testing, the development of “fourth-generation nuclear weapons” is dependent upon MEMS and… read more

Making Eyeglasses That Let Wearers Change Focus on the Fly

August 7, 2009

Stephen Kurtin has succeeded in creating eyeglasses, called TruFocals, with a mechanically adjustable focus, freeing wearers from the limitations of bifocals, trifocals and progressive lenses.

Subatomic quantum memory in diamond demonstrated

June 28, 2011

Physicists at the University of California, Santa Barbara and the University of Konstanz in Germany have developed a breakthrough in the use of diamond in quantum physics, marking an important step toward quantum computing.

The physicists were able to coax the quantum information contained within a single electron in diamond to move into an adjacent single nitrogen nucleus and then back again, using… read more

AI systems may blow weathermen away

September 29, 2005

Weather forecasters could find themselves pushed out of a job by an artificial intelligence system designed to write clearer, less ambiguous reports.

Computer scientists at the University of Aberdeen, UK, were asked to generate an “artificial weatherperson” by operators of offshore oil rigs, who wanted more clarity in their forecasts. The vocabulary used by different forecasters can be vague and highly variable, says Ehud Reiter, who led the Aberdeen… read more

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