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Tag: "sources" at biology news

Stem cell therapy shows promise for rescuing deteriorating vision

...ed a number of different cell types from different sources and these have given us the best results we've ever got." How the cells act to preserve the deteriorating eye cells remains unknown, says Gamm. Like all cells, neural progenitor cells do many things and secrete many different types of chemicals t...

'Hidden-hero' microbes in soil, water may help naturally clean toxic sites

...the radioactive contamination resides, are primary sources of groundwater used for drinking, and contaminated aquifers tend to be extreme environments where microorganisms dominate. These microbes are the 'hidden heroes' that do the work of bioremediation. Our new project will provide the basic science neces...

Swimming 'to the left' gets bacteria upstream, and may promote infection

... to eventually locate large reservoirs with richer sources of food and better conditions for multiplying. "We think that upstream swimming of bacteria may be relevant to the transport of E. coli in the urinary tract," said Köser. "It might also explain the high rates of infection in catheterized patients...

Liposuctioned fat stem cells to repair bodies

...e of stem cells," Collas pointed out. Unlike other sources of adult stem cells, such as bone marrow, fat is abundant and there is no shortage of donors. "It’s wonderful, we have litres and litres of material from cosmetic surgery clinics and end up with bucketfuls of stem cells to work with," he notes. E...

Scientists map air pollution using corn grown in US fields

...ate the release of carbon dioxide from fossil fuel sources to limit greenhouse gas warming," said James Rande...ing season. The scientists avoided pollution point sources such as highways and power plants to allow for mapping of regional patterns across different states....

Do you hear what i see?

...dy. "This knowledge could help scientists pinpoint sources of extraordinary sensory processing, such as creativity and genius, as well as abnormal sensory processing, as seen in schizophrenia." Kayser notes that the findings also could be used to reveal the role of audio-visual integration in communicatio...

Long-lived deep-sea fishes imperiled by technology, overfishing

...eep-sea fishes grow slowly because of limited food sources and slower metabolisms and many don't reach sexual maturity for 30 to 40 years, Heppell said. The harvest of older fish may have an even greater impact on these threatened populations because older fish are more likely to breed successfully than youn...

Termites get the vibe on what tastes good

...gy, says the ability to differentiate between food sources is based on the vibrations of the food that the termites are eating, although the exact mechanism for this ability is yet to be explored. "Scientists have known for some time that termites are receptive to vibrations," Mr Inta says. "But these resu...

New cigarette designs don't offer lower predicted cancer risks

...es that science does not adequately understand the sources of the cancer effects of smoke from conventional cigarettes. As a result, even if some of the known toxins –such as formaldehyde, arsenic, and cadmium ?are removed from cigarette smoke by the new PREP designs, tobacco companies could not be sure the ...

Cellulosic ethanol: Fuel of the future?

... Biofuels, on the other hand, are carbon-neutral sources of energy, Somerville said, noting that plants absorb atmospheric carbon dioxide during photosynthesis, which compensates for the CO2 that is released when biofuels burn. Environmental costs Some environmentalists criticize the use of biofuel...

Custom-made cancer cell attacks

... Biofuels, on the other hand, are carbon-neutral sources of energy, Somerville said, noting that plants absorb atmospheric carbon dioxide during photosynthesis, which compensates for the CO2 that is released when biofuels burn. Environmental costs Some environmentalists criticize the use of biofuel...

Researchers find 6,000-year-old fossil evidence

... chili peppers one of the oldest domesticated food sources in the Americas. The study will be published in th...li peppers are one of the oldest domesticated food sources in the Americas and that people in distant areas all ate them. This suggests that these groups might...

White blood cells in lung produce histamine seen in allergies

...ter. "Previously it was thought that the primary sources of lung histamine, in health as well as disease, was mast cells, which are classically associated with allergy," notes Caughey, who is also a professor of medicine at the University of California, San Francisco. Caughey says the result could mean t...

Researchers create artificial enzyme that mimics the body's internal engine

...ul to the study of fuel cells-very efficient power sources that convert chemical energy to electricity. "If we can develop better catalysts to do that reduction, we can get better fuel cells," Devaraj explained. ...

New biofuels process promises to meet all US transportation needs

...potentially available every year from agricultural sources such as crop wastes, animal manure, grains and other crops. The remaining biomass could come from sources including fuel wood from forests, wastes left over from wood processing mills and paper mills, and c...

What's in the water? Estrogenic activity documented in fish caught in Pittsburgh's rivers

... is to identify the estrogenic chemicals and their sources in the local water and fish. "These findings have significant public health implications, since we drink water from the rivers where the fish were caught. Additionally, the consumption of river-caught fish, especially by semi-subsistence anglers, may...

Shedding new light on proteorhodopsin

...multaneously harvest energy from several different sources may be better at producing biofuels than microbes ...ystem that could harvest energy from two different sources and you knocked out one of those sources then you would probably maximize the alternative energy sou...

Hotspots of mercury contamination identified in eastern North America

...tlands and forested areas to mercury inputs. Local sources of mercury are also significant. Although mercury ...along with municipal waste incinerators, are major sources of mercury pollution. Cap and trade approaches seek to reduce the total release of mercury but could...

ConocoPhillips establishes $22.5M biofuels research program at Iowa State

...State to research extensions of traditional energy sources that ultimately will benefit consumers." "We are excited to work with ConocoPhillips to develop a research program that applies Iowa State University's strengths in renewable energy," said Iowa State President Gregory Geoffroy. "The emerging conse...

Mercury contamination of fish warrants worldwide public warning

...papers summarize what is currently known about the sources and movement of mercury in the atmosphere, the socioeconomic and health effects of mercury pollution on human populations, and its effects on the world's fisheries and wildlife. Five other major findings in the declaration were: On average, th...

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