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Tag: "high" at biology news

New lab technique identifies high levels of pathogens in therapy pool

...sequencing technique has identified a surprisingly high number of airborne pathogens in a Midwest therapy ...er postdoctoral researcher at CU-Boulder, said the high presence of aerosol pathogens poses the greatest concern for very young children, the elderly and pe...

Scientists identify molecule that regulates well-known tumor suppressor

...s cancers with normal PTEN also exhibit abnormally high levels of PKB/Akt activity. In a quest to determine what molecules regulate normal PTEN, Dr. Tak W. Mak from the Ontario Cancer Institute and the University of Toronto and colleagues used a genetic screening method in fruit flies and identified the m...

Microbial fuel cell: High yield hydrogen source and wastewater cleaner

...cesses. We can theoretically use our MFC to obtain high yields of hydrogen from any biodegradable, dissolved, organic matter -- human, agricultural or industrial wastewater, for example -- and simultaneously clean the wastewater. "While there is likely insufficient waste biomass to sustain a global hydro...

Nanoparticles offer new hope for detection and treatment

... to provide contrast in MRI images. This creates a high density of contrast agent, and when the particles bind to a specific area, that site glows brightly in MRI scans. In this study, MRI scans picked up tumors that were only a couple of millimeters (about one twenty-fifth of an inch) wide. Small, rapi...

Survey finds silver contamination in North Pacific waters

... Society. Ranville found silver concentrations as high as 1.2 parts per trillion in samples of North Paci...Previous studies by Flegal's group have also found high mercury levels in rainfall on the U.S. West Coast, which they linked to contamination from coal burn...

Love's all in the brain: fMRI study shows strong, lateralized reward, not sex, drive

...s Aron added: "Our participants who measured very high on a self report questionnaire of romantic love also showed strong activity in a particular brain region ?results that dramatically increase our confidence that self-report questionnaires can actually measure brain activity." Aron also noted that th...

Researchers uncover sequence of major rice pathogen

...ants live in discreet parts of the genome and have high rates of recombination, which may be why the fungus can evolve new strains so quickly," Dean says. M. grisea undoubtedly produces toxins which may enable it to be a more effective pathogen. However our knowledge is limited to date, Dean says. The ge...

Researchers make gains in understanding antibiotic resistance

...searchers used x-ray crystallography to explore at high resolution the structural basis of a particular ribosomal mutation dubbed L22 that confers resistance to macrolides such as erythromycin. In a seeming paradox, said Steitz, this mutation confers resistance, even though the antibiotic still binds to t...

First frozen egg baby born in Canada

...e treatment cycle had to be cancelled because of a high risk of multiple-fetal pregnancy. As an alternativ...urvival rate. Human eggs are very fragile and have high water content. Conventional methods of freezing have been relatively unsuccessful because they allow...

Solutions that reduce death of marine life reeled in by International Smart Gear Competition

... an American working in New Caledonia and a former high school biology teacher, commercial fisherman, commercial diver and tugboat operator. He noted that fisheries' logbook data and studies of sea turtle behavior indicated sea turtles swim and become hooked in shallower waters than tuna, the target speci...

Researchers report new pro-inflammatory role for anti-inflammatory enzyme

...the body expresses iNOS which generates relatively high concentrations of NO," says Dr. Hobbs. "This aids host defense by killing the invading organism, but in excessive quantities starts to lead to host-damage. In sepsis, this is manifested predominantly as a profound hypotension, inadequate tissue perfu...

NASA study finds snow melt causes large ocean plant blooms

...pressure system over the Indian subcontinent and a high pressure system over the Arabian Sea. This difference in pressure causes winds to blow from the Southwest Arabian Sea bringing annual rainfall to the subcontinent from June to September. In the Western Arabian Sea, these winds also cause upwelling of...

Defenseless plants arm themselves with metals

...f plants, called metal hyperaccumulators, to store high levels of metal in their tissues, rendering them p...e essential as micronutrients, metals are toxic in high levels. Most plants have mechanisms that keep metals in the environment out of their tissues. So wha...

Mystery Blood Vessel Disorder Implicated In 'Mini' Strokes

...atients with the disease are usually found to have high blood pressure, but the causes of the disease are unknown. Using MRI, Amarenco and his colleagues studied 510 patients who had suffered strokes and found that the subset of patients with dolichoectasia were more likely to have evidence of small vess...

Test for early detection of prostate cancer shows promise

...ulty. The researchers found that EPCA levels were high in 11 of 12 prostate cancer patients (92 percent) and low in all of the healthy individuals. Only two bladder cancer patients and none of the other patients had elevated EPCA levels, suggesting that for this study, the test was correct 94 percent of ...

Medical whistleblowers speak out

... to stop that and didn't." Graham was one of five high profile medical whistleblowers invited by the medical investigative journalist Jeanne Lenzer to meet together in Washington DC on May 15th 2005 to share their accounts of practices in medicine and medical research that they believe are risking the pu...

Canada approves marijuana-based pain spray

...olicy, have demonstrated promising benefit, are of high quality and possess an acceptable safety profile based on a benefit/risk assessment for the approved use. “Effective pain control and management are extremely important in a disease like MS,?said Dr. Allan Gordon, Neurologist and Director of the Was...

Biologists discover why 10% of Europeans are safe from HIV

...une system but have been unable to account for the high levels of the gene in Scandinavia and relatively l...le in raising the frequency of the mutation to the high levels found in some Europeans today. Professor Christopher Duncan and Dr Susan Scott from the Univ...

First North American Encapsulated Islet Transplant without Long-term Immune Suppression into a Patient with Type 1 Diabetes

...une system but have been unable to account for the high levels of the gene in Scandinavia and relatively l...le in raising the frequency of the mutation to the high levels found in some Europeans today. Professor Christopher Duncan and Dr Susan Scott from the Univ...

Shift of weather patterns necessitates rethinking of reforestation methods

... get the same stand density. On wet years, when a high percentage of bare root seedlings do survive, landowners find themselves paying for costly thinnings, Taylor said. Taylor's research is being conducted near the Texas A&M University Research and Extension Center at Overton. The Bruce McMillan Jr...

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