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Tag: "dead" at biology news

U. of Colorado researcher identifies tracks of swimming dinosaur in Wyoming

...ences suggested that sea urchins don't eat bits of dead sea lilies that they find on the ocean floor but rather bite pieces right off their prey, giving sea lilies plenty of incentive to shed their stalk ends and flee. "It's the lizard's tail strategy," said Baumiller, who is also a curator in the UM Mus...

Creeping crinoids! Sea lilies crawl to escape predators, new video shows

...ences suggested that sea urchins don't eat bits of dead sea lilies that they find on the ocean floor but rather bite pieces right off their prey, giving sea lilies plenty of incentive to shed their stalk ends and flee. "It's the lizard's tail strategy," said Baumiller, who is also a curator in the UM Mus...

Shade trees getting 'scorched' by plant disease

... species eventually decline to the point where the dead branches pose a safety risk and the tree must be removed. According to Gould, current management options of BLS in urban trees include : Maintain plant vigor. The development of BLS is enhanced by other diseases, insects, and environmental s...

Researcher says flu responders can learn from 1918 epidemic

...y night, was in bed Tuesday and Wednesday, and was dead by Thursday," he said. "Some went peacefully, thro...ented, Higgins said, the worst case scenario, with dead bodies piling up outside of police stations and others dumped into trench graves. "Obviously, not e...

MBL researchers probe how an ancient microbe thrives and evolves without sex

...abandonment of sexual reproduction is a biological dead end. Now, MBL scientists are beginning to understand just what's different about these creatures' DNA that has enabled them to succeed where other asexual species have failed. In a paper published in this week's Proceedings of the National Academy o...

Newly recognized gene mutation may reduce seeds, resurrect plants

A mutated plant that seems to return from the dead may hold the secret to how some flora protect their progeny during yield-limiting drought and other stresses, according to Purdue University scientists whose study of the plant led to discovery of a gene. The gene, called RESURRECTION1 (RST1), has r...

Techniques available to detect soil that inhibits destructive soybean pest

...odes are white, lemon-shaped parasites that become dead brown shells filled with maturing eggs. Some soils have as yet not-understood characteristics that don't foster development of the pests. Westphal, whose research focuses on soybean cyst nematodes and ways to thwart them, said that using nematode-su...

Hurricane aftermath: Infectious disease threats from common, not exotic, diseases

...re, mosquitoes do not spread disease by feeding on dead bodies. There is, however, a risk of mosquito-borne diseases such as West Nile because mosquitoes breed in standing water. Appropriate pest management, including addressing the need to get rid of standing water, is an important public health measu...

Toxic flood lifts lid on common urban pollution problem

Broken sewers, flooded industrial plants and dead bodies are all likely to blame for poisoning the waters being drained from New Orleans. But the water - and the muck it is leaving behind -- also owes its contamination to a source as mundane as it is unexpected: Toxins common in most urban environm...

Bleach found to neutralize mold allergens

...ong been known that bleach can kill mold. However, dead mold may remain allergenic," said lead author John...ations for mold remediation call for removal since dead mold retains its ability to trigger allergic reactions, according to Dr. Martyny. The researchers g...

One bacteria stops another on contact

...enon. "We don't know if these 'stopped' cells are dead or alive," said Low. "They don't grow after they'v...call them dead, but they don't break apart the way dead cells do. These cells appear to stay intact, perhaps in a quiescent mode, or dormant state." Aoki e...

How cell suicide protects plants from infection

...t themselves from viruses, plants create a zone of dead cells around an infection site that prevents the infection from spreading. Savithramma Dinesh-Kumar, associate professor of Molecular, Cellular and Developmental Biology at Yale and his colleagues discovered how the plants keep from killing themselve...

Bird samples from Mongolia confirmed as H5N1 avian flu

...ns, and public health officials. Approximately 100 dead birds were found at the site. The team--inclu...samples from hundreds of wild birds, both live and dead including, ruddy shelduck, herring gull, black-headed gull, bar-headed goose, whooper swan, and Eura...

IBM Transforms the Art of Scientific Expeditions

...tumor's center became "necrotic" or populated with dead cells, but the perimeter of the tumor continued to grow. In fact, blocking HIF-1 before radiation was detrimental to radiation's effects: it prevented cancer cells from engaging in the very behaviors that radiation targets for destruction, said Dewh...

Duke Experiments Boost Radiation's Cancer-Killing Effects

...tumor's center became "necrotic" or populated with dead cells, but the perimeter of the tumor continued to grow. In fact, blocking HIF-1 before radiation was detrimental to radiation's effects: it prevented cancer cells from engaging in the very behaviors that radiation targets for destruction, said Dewh...

Woods Hole Research Center plans controlled burn in Amazon rainforest

...aged if too close to the flames. If their standing dead trunks manage to catch fire, researchers will learn how resilient they really are, and also see new areas of the forest exposed to fire as the standing fuel carries the flames higher into the crowns of trees that have managed to survive the ground fi...

Scientists to mimic nature for newest cancer drugs

...ercent of all mortality is detected, so reports of dead whales represent only a small fraction of actual deaths. "Recent increases in calving rates, an average of 23 annually over the last five years, are inadequate to overcome this level of mortality," the paper states. "Without changes in the managemen...

FSU scientist warns North Atlantic right whale facing extinction

...ercent of all mortality is detected, so reports of dead whales represent only a small fraction of actual deaths. "Recent increases in calving rates, an average of 23 annually over the last five years, are inadequate to overcome this level of mortality," the paper states. "Without changes in the managemen...

Study: Harmless virus kills some cancers

...lls, when treated with AAV2, all cancer cells were dead in six days. Though previous have investigated the cancer-targeting potential of AAV2, none allowed the AAV2 to remain in culture long enough to see the effect that Meyers and his team observed. "One of the most compelling findings is that AAV2 appe...

Roundup®highly lethal to amphibians, finds University of Pittsburgh researcher

...the next day we looked in the tanks and there were dead tadpoles all over the bottom." Relyea initially conducted the experiment to see whether the Roundup® would have an indirect effect on the frogs by killing their food source, the algae. However, he found that Roundup®, although an herbicide, actually...

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