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Tag: "low" at biology news

Research team receives $7.5 million to study cassava

... But there are downsides to cassava ?its roots are low in protein and also deficient in several micronutrients, such as iron, zinc and vitamin A. And once the roots are harvested, certain strains of cassava can produce potentially toxic levels of cyanogens ?substances that induce poisonous cyanide produc...

NCAR analysis shows widespread pollution from 2004 wildfires

..., a toxic gas that can affect human health even at low levels, is emitted by wildfires as well as by motor vehicles, industrial facilities, and other sources that do not completely burn carbon-containing fuels. Ground-level ozone, which affects human health in addition to damaging plants and influencing ...

Asian immigrants in NYC not receiving HIV education at religious institutions

...espondents said that HIV prevalence was relatively low or nonexistent in their respective communities. Others felt the community would be too uncomfortable discussing HIV in a religious setting, largely because Asians generally consider sex outside of marriage, homosexuality, and drug use to be taboo sub...

Modifications render carbon nanotubes nontoxic

...uring to see that the cytotoxicity of nanotubes is low and can be further reduced with simple chemical changes." Research has been conducted on the toxicity of carbon nanotubes, but CBEN's is the first to examine the cytotoxicity of water-soluble forms of the hollow carbon molecules. In their native sta...

Scientists closer to new cancer detection method

... "Even when the cancer biomarkers are in extremely low concentration we have been able to detect them," said Weihong Tan, Ph.D., a UF Research Foundation professor of chemistry in the College of Liberal Arts and Sciences and a member of the UF Genetics Institute, the UF Shands Cancer Center and the McKni...

UF study first to quantify validity of DNA I.D. tool using marine snails

...ong brightly colored shells. With an error rate as low as 4 percent, two UF scientists have been able to identify cowries collected from around the world by analyzing tissue samples from the marine organisms and comparing them to a comprehensive catalog of species they compiled. The findings are publis...

Amphetamines reverse Parkinson's disease symptoms in mice

...increasing dose. The researchers also report that low doses of amphetamines could, when combined with L-DOPA, potentiate minimally effective doses of L-DOPA in the mice. This could have important considerations in reducing some of the side effects of current therapy. "The locomotor stimulating effect o...

Beach pollution is worst during new and full moon

..." when water levels vary the most between high and low tides, a beach is twice as likely to be out of com... standards. Spring tides are exceptionally high or low tides that take place during the full and new moons, but have nothing to do with the season of the y...

Customized gene chip provides rapid detection of genetic changes in children's cancer

... chest or abdomen. Some types of neuroblastoma are low risk, resolving after surgeons remove the tumor, while others are much more aggressive. Identifying the correct risk level allows doctors to treat aggressive cancers appropriately, while not subjecting children with low-risk cancer to overtreatment. ...

Solexa and collaborating scientists illuminate the small RNA component of the transcriptome

...genes and small RNAs, including genes expressed at low levels, without requiring advance knowledge of the genes or sequences of interest. Solexa performed this research in its Genomic Services business unit. The Company also intends to develop this small RNA assay for use with its next-generation sequenc...

Chernobyl: The true scale of the accident

...e living in contaminated areas received relatively low whole body radiation doses, comparable to natural ...fects, we should not waste resources and effort on low priority, low contamination areas," he explains. "We need to focus our efforts and resources on real...

Anti-cancer Compound In Beer Gaining Interest

...help prevent cancer," Stevens said. "Most beer has low levels of this compound, and its absorption in the...s commonly sold in domestic U.S. brews have fairly low levels of these compounds, but some porter, stout and ale brews have much higher levels. Ideally, r...

Zebrafish may hold key to improved cancer research

...ears to find out with other animal models." "This low cost, efficient research should speed up drug development, save many millions of dollars and help lead to new cancer therapies." Using zebrafish, OSU has extensively studied two groups of carcinogens, polyaromatic hydrocarbons, or PAHs, and nitrosami...

Seeing the forest and the trees

...ose governed by biological characteristics such as low growth rate or limited growing range, those resulting from human activities such as selective logging, and those arising from environmental changes such as widespread drought. As a result of the simulations, they found that the types of trees remaini...

Biotech cotton 8: Bugs 0

...ing together have driven pesticide use to historic low levels ... this is a wonderful success of integrated pest management." Since widespread adoption of Bt cotton in 1997, insecticide use on Arizona's cotton crops is down 60 percent, said Tabashnik. The reduction in chemical pesticide use saves grower...

Building a better mouse model of lung cancer: FHIT counts

...ene were malignant. "This suggests that even very low levels of the protein might be enough to suppress or even prevent lung cancer," says Huebner. Huebner had a hunch that pairing loss of protein with the loss of another tumor suppressor might enhance the research value of the new mouse model even mor...

Life in deadly conditions

...omonas pharaonis can take optimal advantage of the low incidence of nitrogen: through the uptake and metabolism of nitrate and urea, as well as the efficient uptake of ammonia. The co-operation of theoretically and experimentally-oriented researchers shed light on other questions. The bioinformatics exp...

New genetic test can detect clam disease

...aculture operations is to keep infection levels as low as possible and try to keep seed clams free of the disease. One possible remedy may be rotating shellfish crops, much like farmers do on land. ...

Oysters: The natural way to protect our shores

...ectiveness of six experimental shell reefs on both low and high wave energy shorelines in coastal Louisia... shell reefs were effective in slowing erosion for low wave energy shorelines, though less effective in higher wave energy environments. The authors conc...

NRL scientists detect 'milky sea' phenomena

...OLS uses a sensor capable of registering extremely low levels of visible light. This system has been used to detect terrestrial and atmospheric emission sources such as fires, lightning, and human activity (city lights, fishing boats, etc.) around the world. However, there have been no previous reports o...

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