الاثنين، 7 نوفمبر 2011

ScienceDaily: Top News

ScienceDaily: Top News

HIV study identifies key cellular defence mechanism

Posted: 07 Nov 2011 12:39 AM PST

Scientists have moved a step closer to understanding how one of our body's own proteins helps stop the human immunodeficiency virus (HIV-1) in its tracks.

Culprit identified: Fungus causes deadly bat disease

Posted: 06 Nov 2011 04:28 PM PST

Scientists have discovered that the fungus Geomyces destructans is the cause of deadly white-nose syndrome (WNS) in bats, according to new research. The study provides the first direct evidence that the fungus G. destructans causes WNS, a rapidly spreading disease in North American bats.

Flash forward 100 years: Climate change scenarios in California's Bay-Delta

Posted: 06 Nov 2011 04:26 PM PST

Scientists investigated how California's interconnected San Francisco Bay and Sacramento-San Joaquin Delta (the Bay-Delta system) is expected to change from 2010 to 2099 in response to both fast and moderate climate warming scenarios. Results indicate that this area will feel impacts of global climate change in the next century with shifts in its biological communities, rising sea level, and modified water supplies.

Engineers solve energy puzzle: How energy levels align in a critical group of advanced materials

Posted: 06 Nov 2011 12:10 PM PST

Materials science and engineering researchers have demonstrated for the first time the key mechanism behind how energy levels align in a critical group of advanced materials. This discovery is a significant breakthrough in the development of sustainable technologies such as dye-sensitized solar cells and organic light-emitting diodes.

Not one, not two, not three, but four clones: First quantum cloning machine to produce four copies

Posted: 06 Nov 2011 12:07 PM PST

Scientists in China have produced a theory for a quantum cloning machine able to produce several copies of the state of a particle at atomic or sub-atomic scale, or quantum state. The advance could have implications for quantum information processing methods used, for example, in message encryption systems.

Volunteers end simulated mission to Mars

Posted: 06 Nov 2011 11:20 AM PST

The record-breaking simulated mission to Mars has ended with smiling faces after 17 months. Mars500's six brave volunteers stepped out of their 'spacecraft' Nov. 4, 2011 to be welcomed by the waiting scientists -- happy that the venture had worked even better than expected. Mars500, the first full-length, high-fidelity simulation of a human mission to our neighbouring planet, started 520 days earlier, on 3 June 2010, at the Institute of Biomedical Problems in Moscow.
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