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Tag: "volume" at biology news

Master planners in brain may coordinate other areas' roles in cognitive tasks

...e course of five years. According to Petersen, the volume of data provided by the different studies was essential to making sure that the areas highlighted in the analysis were contributing at a very basic level, rather than at the specialized level of a particular task. "Some neuroscientists were certain ...

Targeted virus compels cancer cells to eat themselves

...tion. The result was a huge difference in tumor volume among mice with subcutaneous malignant glioma that...ose receiving the other virus had an average tumor volume of 200 cubic millimeters. Among mice with malignant gliomas in the brain, those treated with thre...

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

...nating squirrels can lose up to 60% of their blood volume and survive at least 10 hours? Brine shrimp can lie on the shore like brittle skeletons, but snap back to life when placed in water? Naked mole rats can live for 28 years but their mice cousins live only three? Birds live longer than their ultra-high...

Recycled paper and compost could both be key tools to control plant disease

...), found that the replacement of around 20% of the volume of soil or peat by compost gave major disease control benefits. Professor Ralph Noble's latest research appears to add another ecological benefit. Early results from trials with conifers using compost made from paper waste shows that it is providi...

Chemotherapy temporarily affects the structures of the human brain

... However, at three-years post-surgery there was no volume differences. That there were no differences between cancer patients and healthy controls at any time point demonstrates that there is no observable cancer-effect in cognitive deficits. The authors write that this study suggests that regional brain...

PLoS ONE is launched by the Public Library of Science

...cation of 100 peer-reviewed research articles. The volume of articles is unprecedented for a journal launch, and is an indication of the strong support within the research community for the PLoS ONE approach. The articles published today have been peer-reviewed under the guidance of an extensive academic ...

Walking not enough for significant exercise benefits

...ith health issues are encouraged to increase their volume of activity such as walking, there didn't seem to be much focus on the effort that needed to go into the activity. The University of Alberta study put the popularized pedometer-friendly 10,000-step exercise program to the test against a traditional ...

Brains can recover from alcoholic damage but patients should stop drinking as soon as possible

... Switzerland and Italy measured the patients?brain volume at the beginning of the study and again after abou... integrate data that showed how the brain regained volume and function early on, once alcoholics, who had no complicating factors, had stopped drinking alcoho...

Beyond the book: Software automates access to brain atlases

...ny other," says Burns. "To do this using a printed volume like Swanson's involved continual back and forth page turning and index consulting. Page turning means that researchers can't look at two or three or five images side by side or on top of each other." Work started on the original NeuARt project ten...

Single molecular 'mark' seen as pivotal for genome compaction in spores and sperm

...osomes ?becomes dramatically compacted, reduced in volume to as little as five percent of its original volum...imited. "We saw a significant increase in genomic volume in the resulting yeast spores, as though the compaction had been lost," Berger says. "The frequency ...

Climate experts search for answers in the oceans

...ly successful Medspiration Project." The large volume of data acquired by satellite observations gives scientists a uniquely detailed view of the changing physical characteristics of ocean surfaces, but long-term series of satellite measurements are required in order to detect trends. The National O...

End of deforestation in view? Experts advance new way to size up global forest resources

...ation's area is covered by trees and considers the volume of timber, biomass, and captured carbon within the... the density of trees per hectare to determine the volume of a country's "growing stock": trees large enough to be considered timber. The formula also quanti...

Siberian lakes burp 'time-bomb' greenhouse gas

...he researchers could get daily measurements of the volume of methane released by the bubbles. Walter will continue her work on methane for her UAF International Polar Year post-doctoral project which will provide the first circumpolar estimate of methane emissions for arctic lakes, linking process-based fi...

Selecting life: Scientists find new way to search for origin of life

... stumped scientists for years because of the sheer volume of possibilities. Now an interdisciplinary team of researchers led by Robert Hazen, of the Carnegie Institution's Geophysical Laboratory and former president of the Mineralogical Society of America, has developed new protocols and procedures for adap...

HIV-1 kills immune cells in the gut that may never bounce back

...le the blood, it only has two percent of the total volume of these cells. It doesn't give us the whole picture," Markowitz says. "But if we actually go into tissue, we see something different. What we see there is eye-opening." After three years of intensive drug therapy that suppresses HIV replication very...

Sequencing of the oyster mushroom genome

...ing the complete genome involves the handling of a volume of 280 million letters, given the fact that each o...ample: 70 million letters would be equivalent to a volume of more than 11,500 pages of text. If the pages are normal, folio size and are placed side by side, ...

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

... Ph.D., of RML. "Unexpectedly, the average abscess volume in mice infected with strains absent the PVL was slightly greater than those containing the toxin. The strong association between PVL and CA-MRSA makes the toxin an excellent marker to track community strains, but the assumption that it is the major ...

Preliminary study finds holographic imaging system promising for cancer treatment planning

...any of the planning tasks, such as beam placement, volume delineation, and plan evaluation are three dimensional (3D) in nature. However, current planning displays, showing 2D cross-sections or 3D renderings on a flat computer screen, are two dimensional (2D) in nature. Actuality Systems "PerspectaRAD" S...

Researchers show that veins stiffen as we age

...pproximately 70 percent of your body's total blood volume when you are at rest, and the flexibility of these...ated to let blood escape from the limbs, the blood volume was measured, recorded, and graphed. The consistently lower blood volume under pressure pointed to t...

New sensor detects gaseous chemical weapon surrogates in 45 seconds

...o letting one drop of liquid DIMP evaporate into a volume of air that would fill more than two Olympic-size swimming pools. "QPAS is an extremely sensitive and selective chemical detection technique that can be miniaturized and yet is still practical to operate in field environments," said Michael Wojcik...

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