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Tag: "faster" at biology news

Mutation improves memory, may lead to memory-enhancing pill

... mice were able to find the platform significantly faster than normal mice could, they reported. "For example, if a person were reading a page of a textbook, it might take several times to memorize it," Costa-Mattioli said. "A human equivalent of these mice would get the information right away." The m...

Nanotextured implant materials: blending in, not fighting back

...ial cells to colonize the material and spread much faster than smooth muscle cells. Where endothelial cells established themselves, they formed a single thin layer that inhibited overgrowth of the smooth muscle cells that tends to narrow stented arteries. In another experiment, published in the Journal ...

LIAI completes world's most comprehensive analysis on influenza virus data

...able them to avoid unnecessary repetition and make faster progress toward new therapies and vaccines." The database, publicly accessible at http://immuneEPITOPE.org , includes information culled from more than 100,000 separate research articles published over several decades, with the influenza informati...

Scientists uncover link between ocean's chemical processes and microscopic floating plants

... have shown that ocean acidity is rising 100 times faster than ever before, Wingenter said, but this study links the effect of increasing ocean acidity to changes in phytoplankton, which themselves produce "greenhouse gases." "Pronounced changes in some phytoplankton have been observed during previous exp...

Nanotechnology meets biology and DNA finds its groove

...s developers is simple and scalable, could lead to faster and vastly more efficient sequencing technology in the lab, and may one day help underpin the ability of clinicians to obtain customized DNA profiles of patients. The new work is reported this week (Feb. 8, 2007) in the Proceedings of the National...

3 proteins may play important role in nerve-cell repair

...teins, and the extensions grew four to eight times faster than in control cells. "Our findings suggest that these three proteins could be important targets for treating stroke, brain and spinal cord injuries and also neurodegenerative diseases," says principal investigator Yoshinaga Saeki of the Ohio St...

Robotic exoskeleton replaces muscle work

... walk slowly, a brace like this may help them walk faster and more effectively." Ferris and former U-M doctoral student Keith Gordon, who is now a post-doctoral fellow at the Rehabilitation Institute of Chicago, showed that the wearer of the U-M ankle exoskeleton could learn how to walk with the exoske...

Newborn brains grow vision and movement regions first

...vision and sensory integration, grew significantly faster than the prefrontal region, which controls abstract reasoning. In addition, the type of brain tissue called gray matter, which contains most of the neurons or nerve cells, grew much more robustly than another type of tissue called white matter, whic...

New study sheds light on 'dark states' in DNA

...tations can lead to diseases such as cancer. The faster a DNA molecule can dissipate UV energy, the lesser the chance that it will sustain damage -- so goes the conventional scientific wisdom. So the dark states, which are much longer lived than previously known states created by UV light, may be linked t...

Researchers discover gene crucial for nerve cell insulation

...m dissipating, allowing them to travel farther and faster along the length of the nerve cell. The researchers discovered how a defect in just one copy of the gene, known as early growth response gene 2 (EGR2) affects the normal copy of the gene as well as the functioning of other genes, resulting in peri...

Lost dogs found more often than lost cats, study suggests

...ical to the recovery of a pet, and can result in a faster recovery." Although Ohio law requires that dogs be licensed, just 41 percent of the lost dogs in the study wore a license at the time of their disappearance. Less than half (48 percent) of dogs had an identification tag or microchip when they went ...

Scientists create dual-modality microbeads to improve identification of disease biomarkers

... and Emory University have developed an easier and faster method to detect these types of target molecules in liquid samples using highly porous, micron-sized, silica beads. The researchers developed a technique to simultaneously or sequentially add optical and magnetic nanoparticles into the beads. Addi...

Birth rate, competition are major players in hominid extinctions

...ers and could increase their populations at a much faster rate. Paranthropus simply could not compete reproductively and could not alter its choice of food. "We find that the early members of the genus Homo who succeeded were super ecological opportunists," says Jablonski. "They would eat vegetation an...

Surgeons with video game skill appear to perform better in simulated surgery skills course

...er errors [in the Top Gun course], were 27 percent faster and scored 42 percent better overall than surgeons...yers made 32 percent fewer errors, were 24 percent faster and scored 26 percent better overall than their non-player colleagues," the authors write. Those i...

Novel computed imaging technique uses blurry images to enhance view

...or tissue. "ISAM can assist doctors by providing faster diagnostic information, and by facilitating the further development of image-guided surgery," Boppart said. "Using ISAM, it may be possible to perform micron-scale imaging over large volumes of tissue rather than resecting large volumes of tissue." ...

Lizards 'shout' against a noisy background

...hat the more "visual noise" in the background, the faster and more exaggerated the movements of the lizards. Anole lizards are interesting to evolutionary biologists because different species are found on different islands all over the Caribbean. The lizards are not particularly closely related -- they a...

Magnetic system could be key to surgery without scars

...entry points will result in fewer complications or faster healing, advantages usually seen in moving from conventional surgery to laparoscopic surgery. ...

Engineering the heart piece by piece

...vative technique, using a fibrin hydrogel, that is faster than others, but still yields tissue with significantly better properties. The gel was able to support rat cardiac cells temporarily, before the fibrin broke down as the cells multiplied and organized into tissue within a few days. Tests showed th...

Fish growth changes enhanced by climate change

... juvenile morwong, in the 1990s were 28.5 per cent faster than at the beginning of the period under assessment in the mid-1950s. By comparison, juvenile oreos, a species found at depths of around 1,000 metres, were growing 27.9 per cent slower than in the 1860s. There was no or little change in the growth ...

Does evolution select for faster evolvers?

..., thus making it possible for life forms to evolve faster than they would if they relied only on sexual selection or random genetic mutations. "We have developed the first exact solution of a mathematical model of evolution that accounts for this cross-species genetic exchange," said Michael Deem, the Jo...

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