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Tag: "away" at biology news

Scientists see DNA get 'sunburned' for the first time

..., and others a short time. The energy often decays away harmlessly, but occasionally it triggers a chemical reaction that alters the DNA's molecular structure. Previously, scientists believed that the longer a DNA molecule was excited by UV energy, the greater the chance that it would sustain damage. S...

Paper challenges 1491 Amazonian population theories

... "What we do say is that when you start to look away from known settlements, you may see very long-term...y much limited to river corridors, and if you went away from the river corridors there wasn't that much impact. That's what our findings tend to support." ...

Fascinating spider silk

...n the edges and spokes of their webs and to rappel away in the face of danger is made of two different proteins. The Munich team has now successfully used genetic engineering to produce one of the spider silk proteins of the European garden spider (Araneus daidematus). While purifying the protein by dialy...

Study finds antibiotic resistance in poultry even when antibiotics were not used

...shing your hands regularly and keeping other foods away from raw chicken, for example ?to minimize the risk of illness. "All foods have the potential to contain pathogens ?all of them," Lee said. "There's no substitute for good food handling and preparation." ...

Renegade RNA -- Clues to cancer and normal growth

... microRNA behaved just like miR-29b, wandering far away from the cell's protein-making machinery and into the nucleus, where the cell's genetic material is kept. The researchers then stuck the same six-block end onto another type of small RNA, a small-interfering RNA or siRNA that turns off genes. This...

Chemo combination improves survival in asbestos-related cancer

...dvantaged communities. Many individuals have moved away from heavy industries and may not admit or know they were exposed to asbestos as young men, with similar issues for their partners." According to the U.S. Environmental Protection Agency, 10 percent to 15 percent of schools and other public buildin...

A rarity among arachnids, whip spiders have a sociable family life

...d Rayor. The adolescents, though, tended to scurry away and hide when faced with threat. While sharing prey is an advantage for other arachnids with social tendencies, Rayor said she has yet to witness amblypygids intentionally sharing prey. More than 100 amblypygid species live in tropical areas worldw...

Vasectomy may put men at risk for type of dementia

...rger population. "I don't want to scare anyone away from getting a vasectomy," Weintraub stressed. "It's obviously a major birth control alternative. This is just a correlational observation," she said of the dementia connection. "We need to do more research to find out." ...

New findings blow a decade of assumptions out of the water

...that would have put the two processes half a world away from each other. Scientists had estimated that, at...tion to a house where the thermostat is many rooms away from a window that has swung open, letting in cold air. The house could get quite chilly before the ...

Researchers develop technique for bacteria crowd control

...cteria, uncomfortable with the changes in pH, swim away from the electrodes and ultimately congregate in the middle of the experimental cell. Concentrated bacteria form self-organized swirls and jets resembling vortices in vigorously stirred fluid. The method, which is suitable for flagellated bacteria...

A case of mistaken identity for the ivory-billed woodpecker?

...ht. He also found that as Pileated Woodpeckers fly away from the camera, their plumage is hard to distinguish from the Ivory-billed Woodpecker's. He suggests that the Pileated Woodpecker's distinctive black trailing wing edges can be spotted in the Luneau video as the wings stroke downwards. Previous anal...

Proteins important in Alzheimer's, Parkinson's disease travel in the slow lane

...ons, extensions of nerve cells that carry proteins away from the cell body. Understanding this process of axonal transport is important for studying many neurodegenerative diseases. The study appeared in the Journal of Neuroscience. Axonal transport often breaks down and many neurodegenerative diseases...

Bats prey on nocturnally migrating songbirds

...ally encountered would be lower than spitting them away (Bontadina & Arlettaz, 2003 Functional Ecology 17, 141-142). In the case of giant noctule bats, it was for sure the description by Ibañez et al. (2001) of a so far totally unrecognized, outstanding predator-prey relationship that triggered so...

Researchers find 6,000-year-old fossil evidence

...em; you don't have husks or shells that are thrown away and preserved. That's why we used a technique that involved analyzing microscopic starch grains on cooking and grinding tools to find this new evidence." Pearsall, who studied tools from sites in Ecuador and the Bahamas, teamed with a group of sci...

Trojan horse strategy defeats drug-resistant bacteria

...he body has potent defense mechanisms to keep iron away from infecting organisms, and invaders must steal some if they are to survive." Iron is critical for the growth of bacteria and for their ability to form biofilms, slime-encased colonies of microbes that cause many chronic infections. "Because i...

Einstein's tea leaves inspire new blood separation technique

...ts per chip -- but could still be five to 10 years away from mass production. ...

Chemical switch triggers critical cell activities

.... However, the E2 docking site is initially turned away from E1: so if E2 hopped into the docking site at that point, it would be too far away from NEDD8 to grab it, she noted. And that was the puzzle the St. Jude researchers solved. Speci...

Cancer researchers add spice to research against rare neuromuscular disease

...d to affect the androgen receptor, they have taken away substances like testosterone that bind to and acti...fects. We take another approach: Instead of taking away the substances that turn on the receptor, we look for ways to attack the faulty receptor directly. I...

Lead with a poisonous electron shield

... acts as an electronic shield on one side, pushing away the fourth ligand. Such a dramatic geometrical distortion at the active center could explain why lead inhibits this enzyme. The different behavior of lead in these two enzymes demonstrates that it can enter into complexes in which the metal–ligand...

UCLA/Toronto researchers unlock key to memory storage in brain

...y be able to guide memories into healthy cells and away from sick cells in dying regions of the brain." Our memories define who we are, so learning how the brain stores memory is fundamental to understanding what it is to be human, Silva observed. "A memory is not a static snapshot," he said. "Me...

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