20-11-2007   -   Environment

Tue, 20 Nov 2007 Scientists have developed a tool for quantitatively measuring elusive atmospheric chemicals that play a key role in the formation of photochemical smog. Better measurements will improve scientists' understanding of the mechanisms of smog formation and their ability to select and predict the effectiveness of various mitigation strategies.

  19-11-2007   -   Physics

Mon, 19 Nov 2007 Scientists are closer to developing novel devices for optics-based quantum computing and quantum information processing, as a result of a breakthrough in understanding how to make all the spins in an ensemble of quantum dots identical. more

  19-11-2007   -   Engineering

Mon, 19 Nov 2007 12:00:00 GMT A new antenna made of plasma (a gas heated to the point that the electrons are ripped free of atoms and molecules) works just like conventional metal antennas, except that it vanishes when you turn it off. That's important on the battlefield and in other applications where antennas need to be kept out of sight. In addition, unlike metal antennas, the electrical characteristics of a plasma antenna can be rapidly adjusted to counteract signal jamming attempts. more

  15-11-2007   -   Biology

Thu, 15 Nov 2007 21:00:00 GMT While fluorescence has long been used to tag biological molecules, a new technology allows researchers to use tiny fluorescent probes to rapidly detect and identify protein interactions within living cells while avoiding the biological disruption of existing methods, according to an article in Nature Chemical Biology. more

  14-11-2007   -   Energy

Wed, 14 Nov 2007 09:00:00 GMT A NASA satellite is expected to help scientists resolve wide-ranging predictions about the coming solar cycle peak in 2012 and its influence on Earth's warming climate. Solar cycles, which span an average of 11 years, are driven by the amount and size of sunspots present on the sun's surface, which modulate brightness from the X-ray to infrared portion of the electromagnetic spectrum. more

  12-11-2007   -   Physics

Mon, 12 Nov 2007 15:00:00 GMT Where do the realms of quantum mechanics and classical physics begin to overlap? It's a long-argued question of philosophical interest and practical importance. Now the world's smallest double slit experiment, performed at Lawrence Berkeley National Laboratory's Advanced Light Source and using as "slits" the two proton nuclei of a hydrogen molecule, has shown that quantum particles start behaving in a classical way on a scale as small as a single hydrogen molecule. more

  11-11-2007   -   ICT

Sat, 10 Nov 2007 18:00:00 GMT Computer scientists have watched malicious traffic on the Internet evolve from childish pranks to a billion-dollar "shadow industry" in the last decade, and the profession has largely been one step behind the bad guys. Viruses, phishing scams, worms and spyware are only the beginning, according to one computer science specialist. more

  07-11-2007   -   Biology

Wed, 07 Nov 2007 09:00:00 GMT Scientists have developed a new means of extracting and interpreting data from the human genome that is more powerful and more economical than methods currently employed. The new technology, called selective resequencing, promises to be a boon to many kinds of research, including efforts to comb vast stretches of the genome for mutant genes implicated in major diseases such as cancer and schizophrenia. more

  05-11-2007   -   Engineering

Mon, 05 Nov 2007 12:00:00 GMT Engineers have successfully tested a groundbreaking new magnet design that could literally shed new light on nanoscience and semiconductor research. Magnet engineers worldwide have been trying to solve the problem of creating a magnet with side access at the midsection, but they have met with little success in higher fields. more

  05-11-2007   -   Physics

Mon, 05 Nov 2007 18:00:00 GMT Physicists have performed computer simulations that show how electrons become one thousand times more massive in certain metal compounds when cooled to temperatures near absolute zero. The models may provide new clues as to how superconductivity works and how new superconducting materials could be fabricated. The researchers describe how electrons interact with other particles in these compounds to morph into a fluid of "heavy quasiparticles" or a "heavy fermion fluid."more

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