Tag: "passive" at biology news

Duke Researchers Show "Editing" Can Fix Faulty Genes In New Approach To Gene Therapy

...e thana decade ago, that instead of being simply a passive carrier of geneticinformation, the genetic material known as RNA is an active participantin editing genetic messages before they are translated into protein. The editing approach to gene therapy ignores the defectivegenes, which are encoded in DNA a...

Yale Breakthrough In Destroying Drug-Resistant Bacteria Focuses On Thwarting Genes That Cause Resistance

...obel prize-winning discovery that RNA is notjust a passive carrier of genetic code, but also can be an enzyme that activelyengages in chemical reactions. The discovery triggered a new branch of geneticengineering aimed at treating lethal viruses and drug-resistant bacteria, aswell as repairing genetic defec...

Smoking Mice Lead To Emphysema Breakthrough

...ave cigarettesin their mouths, but they got enough passive smoke to become quite fond of theirroutine. "After a while, they just started running into the chambers," Shapirosays. "They loved it." To Shapiro's knowledge, his is the first smoking chamberever designed for mice. Six months later, all of t...

Hard Hearts: New Discovery Of Bone In Heart Tissue May Explain Valve Disease

...rocess of laying down organized bone tissue, not a passive one, as was oncethought," says Mohler. But that still leaves the question: How did bone cells get into theheart? "One theory is that, under the right conditions, either valve cells orinflammatory cells at the area of heart damage undergo a g...

Tinkertoy Robot Shows How Humans Walk

...locomotion, our research further suggests that the passive interaction of gravity, inertia and ground contact may also be very important in coordinating our locomotion," says Coleman. Coleman and Ruina's work builds on the pioneering analytical research by Tad McGeer, formerly of Simon Fraser University in V...

Carnegie Mellon Researchers Develop Nation's First Robotic Tour Guide For The Dinosaur Hall At Pittsburgh's Carnegie Museum Of Natural History

...isitors are now limited to 'look but don't touch,' passive experiences." Whittaker said in the past 10 years alone, much has been learned aboutthe evolution and demise of the dinosaurs, but the experience of museum visit...

Molecular "Fossils" Of Early Life

...man and Cech exploded the myth that RNAis merely a passive carrier of genetic code incapable of triggering cellactivity. Referring to the dozen or more DNA and RNA enzymes created in hislaboratory in recent months, Breaker said, "We believe these are like ancientmolecular 'fossils' that might have be...

University of Georgia Genetics Professor John Avise Publishes The Genetic Gods, A New Book On Evolution And Belief

...hese "genetic gods." "If genes were merely passive backdrops to human existence, why shouldwe care about the prospects of human cloning?" asked Avise. "But most of us docare. We understand, if only at an impressionistic level, the concept of geneticindividuality, and of the hereditary influences that...

New Carbon Monoxide Sensor Developed For Occupational Use

... CO over an eight-hour period, or as a residential passive sampler measuringtime-weighted average exposure in a home or office over a one-week period. Carbon monoxide poisonings are most often caused by exposure to excessive indoorlevels of the gas. Faulty combustion appliances such as gas stoves orgas-burn...

Center For Future Health Aims To Bring High-Tech, Low-Cost Health Care To The Home

...ive independently longer. A "melanoma monitor," a passive system that takes an image of your body,perhaps each week in the bathroom, and compares each image to the last one. Whena mole starts growing, you receive an alert to see a doctor, and you bring alonga computer printout with details of the mole's siz...

Caterpillars foiled when tomato plants summon parasitic wasps

...e battle to avoid being eaten, plants are not just passive victims buteffective defenders against their insect attackers. Scientists have known for the past two decades that many wild and agriculturalplants launch an immune-like chemical defense when attacked by insects. Thatchemical resistance response can...

Media Advisory: The Geological Society of America 1999 Annual Meeting

...atment in active and recently abandoned mines, and passive treatment methodsfor older abandoned mines. The l...e processes that occur atabandoned mine sites? Do passive treatment methods work and if so, within whatlimits? Is there a quick fix for AMD control or are co...

Carilion, Virginia Tech, U.Va. create biomedical institute -- Virginia Tech forms optical sciences and engineering research center

...duced into a biological system and remain entirely passive until exposed to a particularoptical signal. An example of this type of therapy might involve a chemical agent that destroystumor cells. The chemical agent would be introduced into the system and would be activated onlyat the tumor location by light ...

University of Pittsburgh-led team finds biological reason for women's increased risk of smoking-related lung cancer

... Because they did not measure exposure to passive smoke, the scientists could not distinguish the role that such exposure might play in activating the GRPR gene in women. Future large-scale studies are addressing this question and others to determine whether GRPR gene expression can provide a reliab...

UF study shows newborn kittens have shot at survival thanks to immune-boosting treatment

...loped and the animals, like other species, rely on passive transfer of antibodies through colostrum. "Systematic bacterial infection is the largest cause of death in kittens from 10 days to 4 weeks old," Levy said. "We believe that at least some of these kittens were susceptible to infection due to their ...

Rate of sound impulses markedly affects ability to perceive volume

... revelation, we no longer think that the system is passive or static. Until our paper, people thought you could characterize the basic properties of the hearing system by looking at the response to isolated sounds, or single tones, given slowly." The research -- funded by the National Institutes of Health ...

This is your adolescent brain on alcohol

...from something, you want to just sit around and be passive and let recovery happen." In reference to the adolescent drinking and brain deficit study, Goldman noted that several important research questions remain. "There's good reason to believe that because these are adolescents," said Goldman, "their brai...

Poorer lung function among children exposed to their mother's cigarette smoke while in the womb

... function. This was independent of the effects of passive smoking. The effects were particularly noticeable on the small airways, the airflow of which was significantly impaired. The lungs of children exposed to household environmental tobacco smoke were also adversely affected, but the impact was conside...

Poorer lung function among children exposed to their mothers' cigarette smoke while in the womb

...g function. This was independent of the effects of passive smoking. The effects were particularly noticeable on the small airways, the airflow of which was significantly impaired. The lungs of children exposed to household environmental tobacco smoke were also adversely affected, but the impact was considera...

Integrative approach to studying penguins, cockroaches and little hairy noses makes comparative biomechanics group at UC Berkeley the nation's best

...here splayed, springy legs are superb in providing passive stability. This frees the brain to deal with navigation rather than tedious, instant-by-instant corrections at all the joints. "The control is built into the structure, their sprawling stance," he said. "It's a self-stabilizing system that can simpli...

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