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Tag: "fewer" at biology news

Polio vaccination strategies assessed as eradication nears

...mens. Because of these results, it is likely that fewer than 1 percent of adults with HIV infection experience prolonged virus shedding when exposed to OPV, "and therefore probably represent minimal risk of re-introducing vaccine virus into the population after poliovirus has been eradicated," the authors...

Overfishing may drive endangered seabird to rely upon lower quality food

... a greater proportion of more nutritious foods and fewer lower-value prey items. Post-breeding diets experienced less change, regardless of ocean temperature or era. The researchers explained that this might be due to the fact that krill and young rockfish are less available in late summer and early fall ...

UK sperm donor crisis

... At the end of the recruitment and testing process fewer than four in a hundred (3.63%) were accepted as suitable donors. Overall, there was a downward trend in the annual number of applicants from around 175 in 1994 to about 25 in 2003, with the sharpest fall occurring from 2000 onwards. From 1999, the ...

MUHC investigators search for the root of sexual pain in women

...te pain medication, which will hopefully result in fewer women suffering in silence." The new CIHR grant will allow the team to initiate research with groups of women that suffer from genital pain associated with menopause--one of the most common forms of dyspareunia. The research concerning vaginismus wi...

Research: Snails were overlooked contributors to marsh destruction

... no snails on exposed grassless mud flats, and far fewer snails in healthy marsh set back from the die-off border. The researchers also removed snails from plots of healthy marsh, then enclosed the plots with wire mesh, preventing snails from reaching the grass. They put enclosures in the path of expandin...

Group proves it's possible to grow new lung alveoli by growing new blood vessels

...s underdeveloped lungs, the alveoli are larger and fewer and there are fewer developed capillaries. It's a condition that leaves them gasping--and one that is shared by people w...

Study shows combination of immune substances to be safe

... of interferon in patients, which should result in fewer side effects and potentially a longer use of interferon, giving the immune system more time to fight the tumor." ...

Access to existing medical treatments could save more lives than spending to improve the treatments

...ons of dollars spent on new generation drugs saved fewer lives and prevented fewer strokes than if the existing drugs had been taken by all patients who could benefit. They cited repo...

Picking particles faster than one at a time

... particles, crystallization in silico may need far fewer than hundreds of thousands of particles. "Jacqueline Milne of the National Cancer Institute has demonstrated that high-quality structural maps can be achieved with a few hundred particles or less -- better than those using tens of thousands of part...

Ancient DNA helps UF researchers unearth potential hemophilia therapy

... in newborns. Patients with mild disease will have fewer problems and the benefits of gene therapy may not outweigh risks to the baby, Fletcher said. Ponder said she thinks the technique also may prove to share some of the same problems as viral-based gene therapy, potentially activating cells that cause ...

Intelligently designed molecular evolution

...e synthases was accomplished with the screening of fewer than 2,500 mutants. An alterative approach, called directed evolution or molecular breeding, that is currently being tested at other laboratories, requires the screening of tens of thousands to a million or more mutants. "The enzyme synthase was t...

New journal article urges use of animal serum-free media for growing live cells

...e. Growing cells without animal serum ensures that fewer variables are introduced into experiments, meaning that results are easily reproducible by different laboratories. ...

Low-cost drug gaining favor for use in HIV-infected children in poor countries

...ve children in Zambia. The study found 33 percent fewer deaths in the group of children who received cotrimoxazole versus the children who were not treated with the antibiotic. The children prescribed cotrimoxazole also were hospitalized less. Those positive results held true "across the board" for childr...

Mining for gems in the fungal genome

...roach located 40 active gene clusters; previously, fewer than ten secondary metabolites were known in this widely studied fungal species. The newly discovered secondary metabolite gene clusters are already beginning to yield potentially useful medical agents. The team found an anti-tumor agent never be...

For one Stanford doctor, the beat goes on during open-heart surgery

...que is as safe as conventional heart surgery, with fewer complications and lower costs. The consensus report, based on randomized controlled trials and retrospective studies, concluded that when complications such as blood loss, stroke, kidney failure and irregular heart beats were considered, beating-hear...

Study finds drug may cut down involuntary movements

...ince it's targeted to a disease directly affecting fewer than 200,000 people in the nation. The symptom that tetrabenazine treats ?involuntary, writhing movements of the limbs, face, and sometimes the entire body ?is the hallmark symptom of Huntington's disease, an inherited neurodegenerative disorder tha...

Diverse tropical forests defy metabolic ecology models

...iameter distribution always deviated by having far fewer large trees than the -2 slope predicts." Shedding light on the process The CTFS team did not stop at merely demonstrating that metabolic ecology failed to explain tropical forest structure '" they examined what alternative models might do better. O...

University of Utah to help build bionic arm

...m manager, said: "Although our war fighters suffer fewer fatalities, they still suffer horrible injuries. And today one of the most devastating battlefield injuries is loss of a limb." The Pentagon announced the project in February when it said it was awarding the Johns Hopkins University Applied Physics ...

Both alcoholism and chronic smoking can damage the brain's prefrontal cortex

...m manager, said: "Although our war fighters suffer fewer fatalities, they still suffer horrible injuries. And today one of the most devastating battlefield injuries is loss of a limb." The Pentagon announced the project in February when it said it was awarding the Johns Hopkins University Applied Physics ...

Cheaper and simpler keyhole surgery

...ng (rigid) instruments. This study showed that far fewer actions were needed when using the manipulator and that fewer mistakes were made than with the existing instruments. Jaspers will now further develop this mecha...

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