New technique allows simulation of noncrystalline materials

A multidisciplinary team of researchers at MIT and in Spain has found a new mathematical approach to simulating the electronic behavior of noncrystalline materials, which may eventually play an important part in new devices ...

Ultra-fast photodetector and terahertz generator

Photodetectors made from graphene can process and conduct light signals as well as electric signals extremely fast. Within picoseconds the optical stimulation of graphene generates a photocurrent. Until now, none of the available ...

Nanoparticles and their size may not be big issues

If you've ever eaten from silverware or worn copper jewelry, you've been in a perfect storm in which nanoparticles were dropped into the environment, say scientists at the University of Oregon.

Password-protected comments off limits to boss, jury rules

In a time when chat rooms, social networking and online forums are commonplace, how far can a company go in monitoring them for negative comments from discontented employees before they are guilty of "cybersnooping"?

Physicists offer new theory for iron compounds

An international team of physicists from the United States and China this week offered a new theory to both explain and predict the complex quantum behavior of a new class of high-temperature superconductors.

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