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Tag: "obtain" at biology news

Few clues about African ancestry to be found in mitochondrial DNA

...nalyse individuals' mitochondrial DNA sequences to obtain information about their origins. The current study suggests that only one in nine African Americans may be able to find clues about where their ancestors came from, in their mitochondrial DNA. Bert Ely, from the University of North Carolina, and col...

Queen bee promiscuity boosts hive health

...life, queen honeybees go out on mating flights and obtain sperm from a dozen or more males," said lead author Thomas Seeley, Cornell professor of biology and chair of the Department of Neurobiology and Behavior. Seeley and David Tarpy of North Carolina State University tested the leading hypothesis that q...

Researchers image molecular motor structural changes

... along microtubules. But they had not been able to obtain images of the actual structural changes kinesins undergo as they move along microtubules. In the first step toward this breakthrough, the researchers used an existing technology, electron microscopy, which normally enables scientists to magnify very...

Hospital-acquired infections -- Inevitable?

...merican Journal of Medical Quality will help us to obtain this worthy goal," Dr. Nash added. The supplement can be accessed by visiting The American Journal of Medical Quality website at http://ajmq.sagepub.com . ...

Mars mission Risk 29: Scientists research ways to reduce radiation-induced brain damage

...c analysis of portions of the irradiated brains to obtain more precise details about the biochemical changes. To date, many scientists have suggested that reduced cognitive impairment results solely from the death of the brain's neurons. Britten believes other, more complex mechanisms are at work, process...

Three-dimensional, miniature endoscope opens new diagnostic possibilities

...nt feature of this new endoscope is the ability to obtain three-dimensional images, something we don't belie...rther optimization of the optics it is possible to obtain images with 10 times the number of pixels provided by other miniature endoscopes." "This new techn...

76 percent of workers older than 60 years of age are overweight or obese

...tend to appear in the same individual, in order to obtain a common related physiopathology. Within the mutual periodic revisions, it was discovered that 12% presented this problem. The major impact of cardiovascular illness is the reduction of productivity and the elevation of mortality. On the other han...

Paying attention sets off symphony of cell synchronization

... of these brain waves allowed the investigators to obtain a thorough description of how attention altered neural function. "For dynamic stimuli at the focus of attention, the timing of brain activity became more precisely synchronized with the flickering," said Satoru Suzuki, associate professor of psycho...

MIT creates 3-D scaffold for growing stem cells

...t cell biology will have to be revised when people obtain results from 3D cell culture studies," Zhang said. The researchers are now testing the designer scaffold with a variety of cells, including tooth, bone, heart, liver, cartilage, skin, pancreas, blood cells and artery-forming cells....

Gene therapy study takes aim at prostate cancer

...al prostatectomy). To register for the study or to obtain further information, patients may call 713-798-4895....

Better sludge through metagenomics

...horus removal (EBPR). The researchers were able to obtain a nearly complete genetic blueprint for a key player in this process, the bacterial species Accumulibacter phosphatis. Activated sludge wastewater treatment processes are used throughout the world to purify trillions of gallons of sewage annually....

Dust to gust

... and Brazil have now for the first time managed to obtain quantitative information about the weight of this dust. Analyses of dust quantities were performed near the Bodélé valley itself, on the shore of the Atlantic and at an additional spot above the ocean. The data revealed that some 56 percent of the...

What animals can tell us about hemorrhage, organ transplants and aging

...rogram summaries. Members of the media who want to obtain a complete set of conference abstracts can contact Christine Guilfoy, cguilfoy@the-aps.org or at (301) 634-7253. ...

Fat stem cells being studied as option for breast reconstruction

...t reconstruction, Dr. Rubin predicts surgeons will obtain the cells from the patients' own stores of abdominal fat. According to the American Cancer Society, more than 214,000 new cases of invasive breast cancer will be diagnosed by the end of 2006. For women who require mastectomy, the loss of one or bo...

New finding points way to foiling anthrax's tricks

...t the University of Mississippi Medical Center, to obtain samples of anthrax siderophores. Because bacteria secrete siderophores, these molecules can be separated from the bacteria and studied without danger of infection. Using these anthrax bacteria extracts, Abergel and Hoette isolated the two sideroph...

Stem cell expansion

...ncer). HSCs are very rare, and it is often hard to obtain enough of them for a successful transplant. To overcome this limitation, Hans-Peter Kiem and colleagues have developed a way to expand HSCs in the laboratory prior to transplantation. As they report in the international open-access journal PLoS Medi...

Scientists use gene signatures to match cancer and other diseases with potentially effective drugs

...nt drugs and other chemical compounds, was used to obtain information on treatments for obesity, Alzheimer's disease, and cancer, and to suggest new therapies for drug-resistant leukemia and advanced prostate cancer. Scott Armstrong, MD, PhD, a pediatric oncologist at Dana-Farber and Children's Hospital B...

Results with newer bladeless LASIK equivalent to standard microkeratome LASIK

...tudy of microkeratome versus bladeless LASIK is to obtain long-term information about patients' vision and eye health five years following surgery. The results presented now represent the first six months of findings. ...

Vaccine shown effective against chancroid

..., or iron-containing, component of hemoglobin, and obtain it from host hemoglobin. The researchers found that immunizing swine with a purified hemoglobin receptor protected the animals from a challenge infection, even after multiple attempts at infection. Blood tests showed that the immunized pigs formed ...

Potato blight pathogenicity explained by genome plasticity

...t implications. "The efforts of plant breeders to obtain resistant varieties by introducing R genes, either by classical breeding or by genetic modification, may be a waste of time and resources when the genome dynamics of the pathogen population is not understood," says Govers. "Monitoring field popula...

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