Archive: 07/12/2007
Speed Bumps Less Important Than Potholes for Graphene
For electrical charges racing through an atom-thick sheet of graphene, occasional hills and valleys are no big deal, but the potholes—single-atom defects in the crystal—they’re killers.
Jul 12, 2007 |
4.5 / 5 (17) |
0
Short-term memory ability may predict IQ
U.S. psychologists have found people with high IQs might be able to remember more than the four objects an average person can store in short-term memory.
Medicine & Health / Psychology & Psychiatry
Jul 12, 2007 |
3.6 / 5 (16) |
1
FSIS makes mad cow rule permanent
The U.S. Food Safety and Inspection Service announced a permanent prohibition on the slaughter of cattle that are unable to stand or walk.
Jul 12, 2007 |
4.5 / 5 (2) |
0
U.S. considers penguin protection
U.S. Fish and Wildlife Service officials are considering extending endangered species protection to 10 species of penguins in the southern hemisphere.
Biology /
Jul 12, 2007 |
4.5 / 5 (2) |
0
Space station crew gets rid of trash
The International Space Station crew is preparing for the arrival of another Russian cargo spacecraft by discarding no longer needed items.
Space & Earth / Space Exploration
Jul 12, 2007 |
4 / 5 (2) |
0
Fla. Gov. warms to climate change
California and Florida already have similar climates and soon they will have similar policies on climate change.
Jul 12, 2007 |
3.2 / 5 (6) |
0
Fossilised midges provide clues to future climate change
Fossilised midges have helped scientists at the University of Liverpool identify two episodes of abrupt climate change that suggest the UK climate is not as stable as previously thought.
Space & Earth / Earth Sciences
Jul 12, 2007 |
4.6 / 5 (15) |
0
Higher efficiency organic solar cell created
Using plastics to harvest the energy of the sun just got a significant boost in efficiency thanks to a discovery made at the Center for Polymers and Organic Solids at the University of California, Santa Barbara.
Jul 12, 2007 |
4.2 / 5 (84) |
0
Cells take risks with their identities
Biologists have long thought that a simple on/off switch controls most genes in human cells. Flip the switch and a cell starts or stops producing a particular protein. But new evidence suggests that this model is too simple ...
Biology /
Jul 12, 2007 |
5 / 5 (2) |
0
How plants learned to respond to changing environments
A team of John Innes centre scientists lead by Professor Nick Harberd have discovered how plants evolved the ability to adapt to changes in climate and environment. Plants adapt their growth, including key steps in their ...
Biology /
Jul 12, 2007 |
3.9 / 5 (8) |
0
Penn researchers find a new target for muscular dystrophy drug therapy
Researchers at the University of Pennsylvania School of Medicine report how the gene for utrophin, which codes for a protein very similar to dystrophin, the defective protein in Duchenne muscular dystrophy ...
Jul 12, 2007 |
5 / 5 (1) |
0
Bak protein sets stressed cells on suicide path, researchers show
When a cell is seriously stressed, say by a heart attack, stroke or cancer, a protein called Bak just may set it up for suicide, researchers have found.
Jul 12, 2007 |
4.5 / 5 (2) |
0
Fragmented Structure of Seafloor Faults May Dampen Effects of Earthquakes
Many earthquakes in the deep ocean are much smaller in magnitude than expected. Geophysicists from the Woods Hole Oceanographic Institution (WHOI) have found new evidence that the fragmented structure of seafloor ...
Space & Earth / Earth Sciences
Jul 12, 2007 |
4.2 / 5 (10) |
0
Researchers witness natural selection at work in dramatic comeback of male butterflies
An international team of researchers has documented a remarkable example of natural selection in a tropical butterfly species that fought back - genetically speaking - against a highly invasive, male-killing ...
Biology /
Jul 12, 2007 |
4.6 / 5 (18) |
0
Unraveling the physics of DNA's double helix
Researchers at Duke University's Pratt School of Engineering have uncovered a missing link in scientists' understanding of the physical forces that give DNA its famous double helix shape.
Jul 12, 2007 |
3.6 / 5 (7) |
0
