Tag: "ride" at biology news

'Search and destroy' protein turns tables on HIV

...ain time bombs: human APOBEC proteins that hitch a ride in the particles and mutate the virus' genetic material after it has infected a new host cell. Unfortunately for us, the AIDS virus has evolved a counterdefense. It produces a protein called VIF (viral infectivity factor), which triggers the destruc...

Brain development and puberty may be key factors in learning disorders

...ren toilet train late, have difficulty learning to ride a bicycle, talk later and generally appear less developmentally mature than their unaffected counterparts. The Northwestern researchers found that the brains of individuals with learning problems not only appear to develop more slowly than those o...

Researchers report major advance in gene therapy technique

MADISON - Despite a roller-coaster ride of ups and downs during the past 15 years, gene therapy has continued to attract many of the world's brightest scientists. They are tantalized by the enormous potential that replacing missing genes or disabling defective ones offers for curing diseas...

Mite transmits viruses damaging to wheat

...stands on its tail end to catch an air current and ride to a new, fledgling host. Dr. Jerry Michels, Experiment Station entomologist at Bushland, said mites are common in most years, but this year is extremely bad for the two viruses. "Unfortunately, chemical control of the mite will not prev...

Vanderbilt doctors find citrus soda interacts with cyclosporine, maybe statins

...Turner's high cyclosporine levels. Mystery solved, ride over. Both say a formal study is needed to examine the extent of the effects of Sun Drop, and a growing number of other drinks containing citrus products, on the disruption of excretion and absorption of cyclosporine and certain other prescription dr...

Researchers say US military accidentally introduced tree pathogen to Italian estate

... The researchers say the pathogen likely hitched a ride in transport crates, pallets or other military equipment made from untreated lumber from infected trees. It took decades for the pathogen to establish itself, but since symptoms were first noticed in the 1980s, the root fungus has wiped out large swa...

Mars mission scientist will live a 25-hour day

...ustralia -- without the benefit of a daylong plane ride during which to adjust. There is one vestige of Earth time Squyres won't be able to escape, though: the press conference. So if, come January, Squyres looks a bit bleary-eyed in front of the cameras, remember that it might just be 2:30 a.m. back in ...

Scientists say new mercury rules could mean continued risk for loons

... feed their young less, while chicks feed less and ride on their parents' backs less, making them more susceptible to predation and chilling. Mercury levels in loons elevates as you go farther east in North America, due to prevailing winds from power plants in the Midwest, scientists believe. "Models ind...

Scientists solve puzzle of how kinesin motor molecules walk or limp across cells

...ng smallpox and herpes, infect cells by hitching a ride on kinesin, added Adrian N. Fehr, a graduate stude... enables them to hijack the kinesin and get a free ride through the cell."...

Paradox in the lungs resolved

...omoting it with the other." The immune system must ride a fine line in its protection of the lung, whose surface area covers an area about the size of a tennis court. It must quickly sound the alarm when it detects a potentially harmful organism or molecule. But it must also tolerate a certain amount of i...

UCR geneticist spells out consequences of genetically engineered genes escaping into wild species

...ouri Botanical Garden. "Buckle up for a rollicking ride through the world of plant sex. Norman Ellstrand, scientific investigator, is on the trail of a little-noticed phenomenon, the migration of plant genes across the boundaries of farmers' fields. He provides a comprehensive and even-tempered look at ...

New study of Europa may explain mysterious ice domes, places to search for evidence of life

...e domes. It essentially would be like an elevator ride for microbes." Barr likened the upwelling of warmer ice from the inner ice shell to its surface to a pot of boiling spaghetti sauce. "The burner under the pan sends the hottest sauce to the top, creating the bubbles at the surface," she said. "The ...

High-tech institute to hold Cal-(IT)Day@UCSD

...include the CyberShuttle. Visitors will be able to ride the world's first regular bus service to offer broadband Web access -- even with the bus traveling at 65 miles per hour. Attendees will also be able to tour the Cal-(IT) 2 -funded Visualization Center at Scripps Institution of Oceanography, a three-m...

Role reversal: male gets easy ride in insect courtship

... business of mating with the female. "The male can ride the female, feeding and mating for up to a week," says Elgar "The female usually produces the wax feed when a male is riding her and she will continue to produce it for as long as the male remains, yet once deposited, his sperm will allow her to cont...

Understanding obesity: New research examines how hunger signals work in the brain

...ed leptin is released from fat cells and hitches a ride across the blood vessels that feed the brain, known as the "blood-brain barrier." The protein then is in the right place to tell the brain that the body has had enough to eat, to eat less or to burn calories faster. However, among those who are obese...

Free shuttles can close the grocery gap

...ins its own fleet of vans to give customers a free ride home with their groceries; and three Ralphs superm... run daily from 9 a.m. to 8 p.m., and offer a free ride home to any customer with a store receipt for $25 or more. Customers arrive at the store by their ow...

Hitchhiking bacteria could compromise the detection of life on Mars

...res originating on Earth could potentially hitch a ride to Mars and survive on its surface. Soil on Mars is thought to be rich in oxidising chemicals that are known to destroy life. The high levels of ultraviolet radiation on the surface of the planet make it unlikely that any organism could survive. Ro...

Flying SnifferSTAR may aid civilians and US military

...UERQUE, N.M. -- A half-ounce 'sniffer' intended to ride on small aerial drones to detect possible gas attacks on cities and military bases has been created by researchers at Sandia National Laboratories in partnership with Lockheed Martin Corporation. The patented device, which detects nerve gases and bli...

Science picks-leads, feeds and story seeds (January 2003)

... Wrestling with a Great Green Giant - Hitching a ride on other plants shipped from nurseries or as an escapee from aquatic gardens, giant salvinia-an invasive, non-native weed-is threatening to choke off waterways in southeastern North Carolina. This Brazilian aquatic plant forms a thick floating mat of...

Evidence for orangutan culture

...angutan equivalent of a sport in which the animals ride falling dead trees, grabbing vegetation before the tree hits the ground; -- emitting sounds such as "raspberries," or "kiss-squeaks," in which leaves or hands are used to amplify the sound; -- building sun covers for nests or, during rain, bunk nests...

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