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Saturday, April 30, 2011

Can Traumatic Memories Be Erased?


Could veterans of war, rape victims and other people who have seen horrific crimes someday have the traumatic memories that haunt them weakened in their brains? In a new study, UCLA life scientists report a discovery that may make the reduction of such memories a reality. Could...

Friday, April 29, 2011

Microsleep: Brain Regions Can Take Short Naps During Wakefulness, Leading to Errors


If you've ever lost your keys or stuck the milk in the cupboard and the cereal in the refrigerator, you may have been the victim of a tired brain region that was taking a quick nap. A photo of rats with objects introduced into their  cages to keep them awake....

Neurorobotics Reveals Brain Mechanisms of Self-Consciousness


A new study uses creative engineering to unravel brain mechanisms associated with one of the most fundamental subjective human feelings: self-consciousness. The research, published in the April 28 issue of the journal Neuron, identifies a brain region called the temporo-parietal...

Wednesday, April 27, 2011

Solar Power Goes Viral: Researchers Use Virus to Improve Solar-Cell Efficiency


Researchers at MIT have found a way to make significant improvements to the power-conversion efficiency of solar cells by enlisting the services of tiny viruses to perform detailed assembly work at the microscopic level. In this diagram, the M13 virus consists of...

Scientists Create Stable, Self-Renewing Neural Stem Cells


In a paper published in the April 25 early online edition of the Proceedings of the National Academy of Sciences, researchers at the University of California, San Diego School of Medicine, the Gladstone Institutes in San Francisco and colleagues report a game-changing...

Cheaper Hydrogen Fuel Cells: Utility of Non-Precious-Metal Catalysts Documented


Los Alamos National Laboratory scientists have developed a way to avoid the use of expensive platinum in hydrogen fuel cells, the environmentally friendly devices that might replace current power sources in everything from personal data devices to automobiles. Los...

Tuesday, April 26, 2011

Optical Microscope Without Lenses Produces High-Resolution 3-D Images on a Chip


UCLA researchers have redefined the concept of a microscope by removing the lens to create a system that is small enough to fit in the palm of a hand but powerful enough to create three-dimensional tomographic images of miniscule samples. Lens-free tomographic imaging:...

Monday, April 25, 2011

Development in Fog Harvesting Process May Make Water Available to the World’s Poor


In the arid Namib Desert on the west coast of Africa, one type of beetle has found a distinctive way of surviving. When the morning fog rolls in, the Stenocara gracilipes species, also known as the Namib Beetle, collects water droplets on its bumpy back, then lets...

Sunday, April 24, 2011

Functioning Synapse Created Using Carbon Nanotubes: Devices Might Be Used in Brain Prostheses or Synthetic Brains


Engineering researchers the University of Southern California have made a significant breakthrough in the use of nanotechnologies for the construction of a synthetic brain. They have built a carbon nanotube synapse circuit whose behavior in tests reproduces the function...

Friday, April 22, 2011

Material That If Scratched, You Can Quickly and Easily Fix Yourself, With Light Not Heat


Imagine you're driving your own new car--or a rental car--and you need to park in a commercial garage. Maybe you're going to work, visiting a mall or attending an event at a sports stadium, and you're in a rush. Limited and small available spots and concrete pillars...

Thursday, April 21, 2011

Microsoft Browser Would Offer Personalization along with Privacy Protection


Today, many websites ask users to take a devil's deal: share personal information in exchange for receiving useful personalized services. New research from Microsoft, which will be presented at the IEEE Symposium on Security and Privacy in May, suggests the development...