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Tag: "begun" at biology news

Researchers examine carbon capture and storage to combat global warming

... deep saline aquifers. A Stanford team also has begun researching storage of carbon dioxide in deep coal beds. In coal, chemical bonds form between the carbon dioxide and the coal, making the method potentially more secure than others, the researchers said. Even better, the process can free natural g...

Male circumcision overstated as prevention tool against AIDS

...ons. Several international AIDS organizations have begun to provide funding for male circumcisions as a deterrent to AIDS. While male circumcision may indeed reduce the risk of transmission by some 50% to 60% in each sexual encounter, reducing single encounter transmission rates alone cannot control the ep...

Eavesdropping comes naturally to young song sparrows

...e adult tutors. The young sparrows, which had not begun to sing, were exposed to the tutor for four days and then rotated to the other room where they heard the songs of the other two tutors for four days. At the end of two months the young birds were isolated from hearing one another or the tutors. T...

Lessons from the orangutans: Upright walking may have begun in the trees

...atchy. Apes living in the forest canopy would have begun to encounter gaps between trees that they could not cross at the canopy level. The Science authors suggest that early human ancestors responded to this by abandoning the high canopy for the forest floor, where they remained bipedal and began ea...

Chemical maps hint at drug's effects on schizophrenia

...nerve cells in the brain, scientists recently have begun to investigate whether lipids, small fatty molecules such as cholesterol and triglycerides, also may play a role in the disease and in response to therapy. The researchers, in collaboration with Lipomics Technologies, measured 300 different lipids...

Row over study puts Korea's scientific community under scrutiny again

...ngement. Dr Kim told the BMJ that the paper had begun life as his PhD thesis and that there were just two names on it when it was published by Korea University in May 2003. He then submitted this as a paper to the Korean Journal of Obstetrics and Gynaecology in July 2003 with five additional names, incl...

Study shows isolation of stem cells may lead to a treatment for hearing loss

... and restore normal hearing. The team has already begun animal studies to explore the use of cochlear stem cells in well-established hair cell ablation models and in deaf mouse mutants with predictable patterns of early hair cell loss. This line of research will evaluate the in vivo survival and differen...

Stress may help cancer cells resist treatment, research shows

...of stress hormones and severity of disease and has begun studying the effects of epinephrine in mice with prostate cancer....

Scientists uncover link between ocean's chemical processes and microscopic floating plants

...uld lead to environmental changes we have not even begun to think about, effects beyond acidification of surface seawater and greenhouse warming," said Donald Rice, director of NSF's Chemical Oceanography Program. Combining future experimental and modeling efforts will lead to a better understanding of t...

Gene therapy for blindness clears hurdle in mice

...With the gene drastically muzzled, scientists have begun experiments to create a therapy in which healthy versions of the gene can be introduced into the eye using an apparently harmless virus to deliver the genetic material. "If we reduce the amount of protein formed by mutated rhodopsin, that may be s...

Cheaper, better disease treatments expected from faster approach to developing antibodies

... Based on the method's early success, Georgiou has begun a collaboration to identify antibodies to treat arthritis and asthma. In Georgiou's E-clonal antibody method, an antibody that is produced by an E. coli bacterium becomes tethered to one of its inner surfaces, or membranes. Small "errors" in the ...

Short chromosomes put cancer cells in forced rest

...wed microtumors in the mice’s lymph nodes that had begun the road to cancer, but stopped, falling instead into a state of senescence. "They don’t die, they don’t divide, they just sit there in permanent rest," says Greider. Greider, who won the Lasker Award in 2006 for her discovery of telomerase, says...

White blood cells of cancer-resistant mice overwhelm natural defenses of cancer cells

...unique mouse line that is resistant to cancer have begun to pin down how the process works and found that white blood cells in these mice overwhelm normal defenses of cancer cells. In a report in Cancer Immunity, a journal of the Academy of Cancer Immunology, posted on line today, Zheng Cui, M.D., Ph.D., ...

Bacteria in small sea life yield new way to make potential cancer drugs

...-intensive routes. More recently, researchers have begun to use genes to make small molecules within laboratory strains of bacteria. This genetic synthesis method is complicated because it's still difficult to understand how changing genes can lead to changes in small drug molecules. "The promise of gen...

MRSA toxin acquitted: Study clears suspected key to severe bacterial illness

...ous disease physicians who treat MRSA patients had begun questioning whether PVL truly led to severe illness, says Barry Kreiswirth, Ph.D., study co-author and a leading staphylococcal epidemiologist from ICPH in Newark. He adds, "We routinely receive calls from clinical microbiology laboratories asking t...

Transplanted brain cells hold promise for Parkinson's disease

... what patients need." The researchers already have begun studies that delay the transplants until weeks after injury. For this study, researchers compared animals that received placebo treatment with those that received only protective neurotrophic factors secreted by stem cells and those that had a tra...

A valuable fly for research into disease

... Bodmer, from The Burnham Institute in the US, has begun to use this model to study arrhythmias and heart failure. His presentation "Arrhythmias and cardiac failure: the Drosophila model of congenital heart disease" will highlight the latest results in this field. ...

New research identifies gene important for nicotine's effects on the brain

...s nicotine reward. "We and other researchers have begun to make very strong links between individual molecules in the brain and nicotine-related behaviors," said Picciotto. "By identifying molecules and changing their activity we can understand how overall behavior is changed. " Picciotto's work explor...

Rearing an army to save wheat

... infested sites. Pallipparambil-Robert has just begun work on a doctorate in entomology at the University of Arkansas. The late summer and autumn efforts are being completed by Frazier. It became her job to tend the cages of parasitic wasps every few days, after Palliparambil-Robert departed. Weaver ...

RNA map provides first comprehensive understanding of alternative splicing

...s controlled in the brain. Though scientists have begun to appreciate how alternative splicing adds a layer of complexity to brain processes that enable us to think and learn, exactly how alternative splicing is regulated during these processes -- and in some cases is uncontrolled (or dysregulated) to cau...

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