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Tag: "faster" at biology news

Study shows that cells have a natural defense against HIV

...ese experiments showed that the cDNA was destroyed faster in cells with normal XPB and XPD compared to cells with mutant XPB or XPD. Cells with normal XPB protein lost half their proviral DNA after 4.6 hours, while cells with low levels of the protein lost half after about 7.7 hours. Similarly, cells with n...

Research could lead to better drugs and whiter whites

...rocess works could one day lead to more effective, faster acting agents." ...

A new way of looking at molecular motors

...the better we understand how they are related, the faster that will occur." The new classification system also describes common evolutionary links between subclasses and protein components within myosins themselves. It includes myosins from insects, algae, parasites, and animals that have not been studied ...

First demonstration of 'teaching' in non-human animals

...ld normally have reached thefood around four times faster if not hampered by a follower. But the benefit is that the follower learns where the food is much quicker than it would have done independently. Tandem followers learn their lessons so well that they often become tandem leaders and in this way time-s...

New gene reduces retinal degeneration in fruit flies

...eurons turn off their response to light four times faster than normal neurons. Because Lazaro helps fly TRP channels work at their maximum, it is possible that a Lazaro-like gene in mammals might also play a role in how well mammalian TRP channels work. "These results have implications for understanding ...

Deep-rooted plants have much greater impact on climate than experts thought

...ing like pipes to allow water to shift around much faster than it could otherwise percolate through the soil. In many plants that exhibit hydraulic redistribution, the tap roots are like the part of an iceberg below water. In some cases these roots can reach down more than 100 times the height of the plant ...

Findings advance use of adult stem cells for replacement bone

...reated surfaces encouraged calcification at a much faster rate. The researchers also found up to 75 times more calcium in the bone created by tissues in the pre-treated cultures. "To me, the most important element of the research is that it may one day contribute to new treatment options for patients," sai...

On a fly's wing, scientists tally evolution's winners and losses

...and human chromosomes. "Perhaps one way to evolve faster is not by making changes in base pairs (the chemicals that make up DNA), but by changing chunks of genome," said Lupski. The sequencing of chromosome 17 and mouse chromosome 11 was an international effort involving researchers from around the glob...

Mouse to man: The story of chromosomes

...and human chromosomes. "Perhaps one way to evolve faster is not by making changes in base pairs (the chemicals that make up DNA), but by changing chunks of genome," said Lupski. The sequencing of chromosome 17 and mouse chromosome 11 was an international effort involving researchers from around the glob...

Animals can change genes quickly to keep up with viral ingenuity

...ne system that fights viruses actually evolve much faster than almost all other genes, evidence of the host'...rticipate in so-called RNAi mechanisms evolve much faster than the vast majority of other genes in the fly's genome. This is relevant for the virus-host arms ...

Researchers develop portable 'vein finder' for faster, more accurate injections

... or heat strips, the GTRI-developed system will be faster and more reliable, says Connell Reynolds, founder of Reynolds Medical Inc., a medical device manufacturer in Fairburn, Ga., that is sponsoring the project. A former paramedic, Reynolds says the vein finder will be invaluable for a variety of medic...

UCI researchers discover key factor for survival of human embryonic stem cells

...ls with neurotrophins, we can produce more of them faster and, hopefully, at much lower cost." Understanding the role that neurotrophins play in stem cell survival could also help researchers with another major problem they face in using hES cells for therapy. Rather than treating disease, undifferentiate...

Warbling whales speak a language all their own

... more dependent on sound--which travels four times faster in water than air--to communicate. For six months each year, all male humpback whales in a population sing the same song during mating season. Thought to attract females, the song evolves over time. Suzuki and co-authors John Buck and Peter Tyack a...

World faces challenge as life expectancies lengthen, scientist says

...reflects a lifespan growth rate that is five times faster than the current rate, increasing the modal age of death in industrialized countries such as the United States from roughly 80 years to 100. "We studied different countries around the world that are representative of different situations and took a ...

Climate change: The rice genome to the rescue

...wing scientists to both develop new rice varieties faster and with the specific characteristics needed to de...g of the rice genome will allow us to do this much faster than we could have in the past," Dr. Zeigler added. "But, in addition to new rice varieties, we must...

Rochester scientists develop fast-working biosensor

...niversity's Center for Future Health "It's clearly faster and cheaper than any competing technology. This is another step on the way to point-of-care diagnostics." The technology potentially could detect any biological entity, Miller said. A physician someday, for example, could use the technology in his o...

Cortex matures faster in youth with highest IQ

...w for high-level thinking circuitry. It also thins faster during the late teens, likely due to the withering of unused neural connections as the brain streamlines its operations. Drs. Philip Shaw, Judith Rapoport, Jay Giedd and colleagues at NIMH and McGill University report on their findings in the March 3...

Technique makes it easier to see mouse embryo in all its glory

...leagues have found a way to make the analysis much faster '" and more accurate. Traditional histology involves embedding embryos in wax, thinly slicing the wax and delicately placing it on slides, staining the sections and viewing slides under the microscope, then mentally reconstructing the three-dimensi...

New male contraceptive clears hurdle

... other countries -- such as the US -- can hope for faster government approval." Currently, RISUG's developers are arranging a collaboration with US researchers. Lissner says that to gain FDA approval, US researchers will have to begin with animal tests, so studies in North American men would not start for ...

Rare Tibetan antelope listed as endangered

... the advantage of reduced postoperative pain and a faster recovery. However, the two-dimensional ultrasound imaging now available offers surgeons only a limited view, which can impede their depth perception and make such procedures difficult to master. "Our ultrasound device could really advance the use of...

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