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Strong Magnetism Creates Two-Dimensional Superconductivity

December 9, 2005

It should be possible to achieve stable superconductivity at higher temperatures by restricting electrons to two dimensions in space, University of Arizona physicist Andrei Lebed has shown.

Electrons will become completely two-dimensional within laboratory-produced magnetic fields that are between 200,000 times and a million times stronger (10 to 50 Tesla) than the magnetic field at the surface of the Earth, Lebed said.

In research published in the Dec.… read more

$100 billion could yield two million ‘green’ jobs

September 11, 2008

A $100 billion US government investment over two years could create 2 million “green” jobs in such industrial sectors as steel and construction, according to environmental and labor groups.

Foiling a ‘malicious manipulator’ of a quantum cryptographic message

February 22, 2012

down-conversion

Quantum cryptography — the ultimate secret message service — can now counter even the ultimate paranoid scenario: when the equipment or even the operator is in the control of a malicious power.

Until now, quantum cryptography protocols have always assumed that an adversary would not have access to information about any choices that are made during the process of encryption.

“We are challenging this assumption,” says Artur… read more

Word ‘bursts’ may reveal online trends

February 19, 2003

Searching for sudden “bursts” in the usage of particular words could be used to rapidly identify new trends and spot problems, according to Jon Kleinberg of Cornell University, who has developed algorithms that identify bursts of word use in documents.

Nano building blocks for a new class of optical circuits

June 2, 2010

Schematics of two types of optical circuits: the three particle trimer functions as a nanoscale magnet, while the seven particle heptamer exhibits almost no scattering for a narrow range of wavelengths. (Capasso lab)

By chemically building clusters of nanospheres from a liquid, a team of Harvard researchers, in collaboration with scientists at Rice University, the University of Texas at Austin, and the University of Houston, has developed novel devices with amazing and exotic optical properties not found in nature — by simply evaporating a droplet of particles on a surface.

The finding, published in the latest issue of Science, demonstrates simple scalable… read more

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

Nano Carrier Targets Cell Sites

September 18, 2008

A new targeted nano carrier that selectively brings a cancer-killing drug to the mitochondria of cells has been developed by Midwestern University College of Pharmacy and Northeastern University researchers.

They enclosed the drug ceramide in a sphere of lipids that were decorated with a molecule known to accumulate in the mitochondria.

Unhealthy mitochondria play a role in obesity and many diseases, including diabetes and degenerative diseases of the… read more

DNA’s Disciples

March 5, 2003

At TIME’s Future of Life conference, Ray Kurzweil predicted that advancements in genomics, coupled with nanotechnology and the combination of human and computer intelligence, could extend our life span to 1,000 years.

Kurzweil defined intelligence as “the ability to solve problems using limited resources. And the most limited resource is time.”

The implication is that the smartest thing for us to do would be to eliminate the ravages… read more

How shape-shifting proteins control the brain’s messages with ‘gates’

June 11, 2010

Research by scientists from Columbia University Medical Center and Weill Cornell Medical College has shown how a protein transforms its shape to transport ions and molecules across the cell membrane, allowing it to regulate transmission of the brain’s messages across the synaptic gap from one neuron to another.

The transporter proteins work by forming passageways in a manner the researchers liken to gates opening and closing.

Because widely… read more

Ray Kurzweil on The Quest For Immortality

January 3, 2006

“When we get to 2030, say, we will have the means to indefinitely extend human life,” said Ray Kurzweil, interviewed by Morley Safer in a web version of CBS 60 Minutes.

A look to the future

September 24, 2008

Regenstrief Institute investigators have demonstrated how health information exchange technologies developed and tested regionally can be used to securely share patient information across the nation during an emergency, using the Nationwide Health Information Network (NHIN).

‘Darwin’s Blind Spot’: Biotech Merger

March 24, 2003

Symbiosis has played an important role in the evolution of complex life-forms than natural selection, argues Frank Ryan in a controversial book, Darwin’s Blind Spot: Evolution Beyond Natural Selection.

How the brain deals you a poor hand

June 21, 2010

Our brains have inner representations that perceive the hand as two-thirds wider than it really is, and their fingers a third shorter, University College London researchers have found.

Math Will Rock Your World

January 12, 2006

The mathematical modeling of humanity promises to be one of the great undertakings of the 21st century. It will grow in scope to include much of the physical world as mathematicians get their hands on new flows of data, from atmospheric sensors to the feeds from millions of security cameras. It’s a parallel world that’s taking shape, a laboratory for innovation and discovery composed of numbers, vectors, and algorithms.… read more

Teaching Bacteria to Behave

October 2, 2008

Single-celled organisms could be “trained” through associative learning to deliver drugs by employing molecular circuits to build stronger associations between stimuli applied simultaneously, according to a multidisciplinary team from Germany, Holland, and the United Kingdom.

Research on genetically engineering remote-controlled bacteria to release drugs is already under way.

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