Tag: "trace" at biology news

International team determines geographic origin of leprosy

...DNA's four-letter code. Scientists can use SNPs to trace the lineage of an organism, in this case M. leprae, and to develop a picture of how leprosy spread from its point of origin. The team looked for SNPs in 171 clinical specimens of M. leprae taken from people infected with the bacterium. The specimens ...

Children at risk, says Illinois agricultural economist who helped assess the world's ecosystem

... "One would think that would be relatively easy to trace but when researchers began reporting what we could find out about land-use change between 1980 and 2000 we found all sorts of problems." The problems stem from limited data collection efforts and incorrect interpretation of data that do exist. One co...

Wild grasses and man-made wheats advance research capabilities

...re than one-half of itsadvance lines of wheat will trace back to a synthetic wheat. And that'sfrom a project started less than 20 years ago, in a world where breedersspend up to 15 years trying to get a desired trait in a line of wheat....

International conference probes the origins of life beyond Earth

...tudying photosynthesis using radioactive carbon to trace changes in carbon dioxide production; David Deamer, a chemist probing the origins of the genetic code; Doug Lin, a renowned theoretical astrophysicist working on the formation of planets; Karl Stetter of the University of Regensburg, Germany, a pione...

Plastic extraction disks make it easier to test levels of atrazine in field crops

...Laboratory. "We can send samples in the mail with trace amounts of pesticides, and the temperature could be substantially high anywhere during the trip," he said. "We already know that several compounds are stable when attached to these disks when refrigerated, but what we don't know is how stable they ar...

Buying time through 'hibernation on demand'

...intravenous infusion of saline solution mixed with trace amounts of an agent that would interfere with the body's ability to use oxygen, Roth said. Using oxygen deprivation to depress metabolic activity also might extend the amount of time that organs and tissues could be preserved outside the body prior ...

A decade after launch, ERS-2's mission continues

...vering atmospheric global coverage of ozone, other trace gases, supporting operational services such as Tropospheric Emission Monitoring Internet Service (TEMIS), providing daily ozone, ultraviolet and air pollution monitoring. "The GOME instrument on ERS-2 has given us more than we ever dreamed of," expl...

Fox Chase Cancer Center researchers: Selenium will have critical role in prostate cancer treatment

...ir M. Kolenko M.D., Ph.D. Selenium, a non-metallic trace element essential to human health, could be just that agent. "Selenium and vitamin E are the most promising dietary supplements considered for use in the reduction of prostate cancer risk," Kolenko said. "This enthusiasm is reflected in the initiati...

Water research initiatives at UW-Madison

...mounts of mercury to a lake in Ontario, Canada, to trace mercury through the lake and into fish. The study is also assessing the relative importance of different pathways mercury follows when it enters ecosystems via watersheds, wetlands, and lake surfaces. Initial findings suggest new mercury moves into t...

The biggest family tree ever

...ze the general public's DNA samples. His team will trace people's lineages using markers encoded into DNA. ...anovich had his own DNA analyzed, which helped him trace his family to a time "when the crusaders were rolling through the Middle East." Many people conduct ...

Jeffrey Friedman, discoverer of leptin, receives Gairdner, Passano awards

...of Kosrae for two reasons. One, most Kosraeans can trace their heritage to a relatively small "founder " po...led on the island, and so today many Kosraeans can trace their ancestry to both groups. The second reason the Kosraeans are ideal for studies of Syndrome X ...

Thumbnail sampler of 10 diverse physiology papers from IUPS 2005

... found that increased susceptibility of oysters to trace metal pollution at high temperature suggests that global warming can post a deadly threat for populations in polluted areas because previously non-toxic concentrations may become toxic and fatal with warming. Next step will be to study to what extent...

Immune cells in the liver take a ride

... no mean feat. The researchers were able to trace the movement of the cells, by replacing a gene called CXCR6 with a gene for green fluorescent protein, which glows and makes the cells visible under a microscope. The researchers used a technique called intravital fluorescence microscope imaging to o...

UF researcher: Ideas about fossil horses undergo evolution in thinking

... North America, providing the tangible evidence to trace individual steps or changes in evolution over a prolonged period of time," he said. MacFadden said horses are credited with shaping human history more than any other domesticated animal. However, it behooves us to be cautious when accepting other be...

Wetlands clean water and may control neighborhood flood problems

...ands, nutrients, suspended solids, organic metals, trace elements, pesticides and pathogens are removed or even eradicated. "Wetlands actually add a positive aspect to the water balance of a given region because they are basically infiltration sites," Turco said. The most vital function of constructed wetl...

SARS surveillance via mass spectometry

...me could be used as molecular fingerprints to help trace the route of infection. However, as "sequence analysis of large numbers of clinical samples is challenging, cumbersome, and expensive," they felt that "what is needed is a rapid, sensitive, high throughput, and cost-effective screening method." Towar...

New cyber security protocol for online banking, and more

...e intricate, then such misbehavior is difficult to trace to the attacker - who might be working for the payer, the final recipient of the funds, or both. For network attackers to launder money through online fund-transfer accounts of unsuspecting individuals, the criminals must stop email notifications fro...

Hypertension in African Americans linked to two genomic regions

...ican Americans. As a group, African Americans can trace their ancestry largely to populations from both Africa and Europe. "The statistical technique we used is ideal for groups who have a trait with a higher occurrence--such as hypertension in African Americans--and who stem from two sets of ancestral po...

PCRM develops world's first cruelty-free insulin assay

...--basically a synthetic formula with cofactors and trace elements that promote cell growth. Then, in collaboration with Linco Research of St. Charles, Missouri, Even successfully incorporated antibodies grown in the medium into a test kit for human insulin. A report on the new methodology will be publishe...

PET/MRI scans may help unravel mechanisms of prenatal drug damage

...ging (MRI) to track the uptake and distribution of trace amounts of cocaine in pregnant monkeys and found s...For the PET study, each animal was injected with a trace quantity of cocaine--less than 10 micrograms, which is not enough to cause pharmacological effects. ...

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(Date:5/16/2013)... African-American adults living closer to a fast food ... those who lived further away from fast food, according ... Cancer Center, and this association was particularly strong among ... study published online in the American Journal of ... proximity to a fast food restaurant, and among lower-income ...
(Date:5/16/2013)... involved in neurodegenerative disease also plays a critical role ... , In a study of the common fruit fly, ... clock responsible for sleeping and waking on a 24-hour ... fly,s sleep-wake cycle is disturbed, making waking up on ... The discovery is particularly interesting because mutations in the ...
(Date:5/16/2013)... layer lining the body,s blood vessels, is extremely ... thickness, this super-tenuous structure routinely withstands blood flow, ... a unique and highly dynamic barrier that maintains ... body,s circulatory system. , It,s also extremely adaptable. ... breached to enable immune cells to reach ...
Breaking Biology News(10 mins):Body mass index of low income African-Americans linked to proximity of fast food restaurants 2Body mass index of low income African-Americans linked to proximity of fast food restaurants 3Gene involved in neurodegeneration keeps clock running 2Endothelium, heal thyself 2Endothelium, heal thyself 3Endothelium, heal thyself 4
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