margin

Ice core 'dipstick' indicates West Antarctic ice has thinned less than believed

...the way to its "grounding line" at the continental margin in the Ross Sea. However, that ice has retreated substantially in the last 20 millennia, at the same time Siple Dome was thinning. Part of the puzzle has been whether the ice streams were flowing, whether they carried interior ice to the ice shelf at...

Genetic testing still smart choice, despite uncertainties

... could help too, Kovalinskaia said. But the small margin of error shouldn't stop couples from having preimplantation genetic diagnosis, said Jamie Grifo, M.D., Ph.D., a professor of obstetrics and gynecology at New York University. The testing can work miracles for women prone to miscarriages or who carry ...

Terahertz imaging may reduce breast cancer surgeries

...aim is to remove the entire tumor with an adequate margin of normal tissue, while minimizing the amount of healthy tissue being removed. If a histopathologist analyzes the tissue and finds tumor at or near the edges, this indicates that there is a higher chance of cancer recurrence. A second operation is re...

Development of gene therapy

...ir share of setbacks, such as the currently slight margin of therapeutic effectiveness over unwanted side effects. This underscores the necessity to carefully assess risks and benefits and also shows that there is still a dire need for more research on gene therapy. Basic research should be conducted in dir...

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

...rain volume (-0.19%), but that value is within the margin of measurement error. Volumetric brain recovery was signified by the patients?brains expanding beyond their previous limits, with an outward brain edge shift for the outer regions and an inward shift for the inner ones. "In addition, on average ac...

Life in the extreme

...ated. His observations of the fauna around coastal margin hydrocarbon seeps in the Gulf of Mexico have revealed a habitat rich in biological activity and without a need for symbionts to extract nutrients. MacDonald found that the productivity of deep-water seeps is overwhelmingly based on chemosynthesis...

Weighty viruses

...ethods for determining the masses of viruses had a margin of error of ±15%, which made them too inaccurate t...rs between 80 and 300 nm—with an astonishingly low margin of error of ±1%. The masses of the viruses can, in combination with other analytical processes, be u...

Cryoablation -- A new treatment option for some kidney tumor patients

...ple cryoprobes guided by ultrasound. The ablation margin (the edge of the frozen tissue) can be accurately ... two freezing and thawing cycles, seeking a frozen margin of approximately 5 millimeters beyond the tumor edge to ensure death of the entire tumor. After the...

Volcanic eruptions, ancient global warming linked

...-rich sediments in basins along the east Greenland margin were responsible for the global warming and changes in ocean chemistry. The breakthrough came from being able to find a marker ?the ash eruption ?that was distributed all over the North Atlantic, and showed up in the marine record as well, Duncan ...

A healthier start to a pig's life

...economic proposition for the farmer, as the profit margin on pig production is not high. "We are very interested in finding a producer for Suilektin® and it could reach the market very soon. It will be both cheap and very effective," says Prof. Pierzynowski. "We will be explaining to farmers the advantages ...

Madagascan tropical forests return thanks to better management and well-defined ownership

...ropical forest loss are still uncertain and a 50 % margin of error appears possible. However, scientists know even less about regeneration of tropical forests. "We now know a fair amount about the human social context in which tropical forest loss is embedded, but very little is known about the role of s...

Arctic ice retreating more quickly than computer models project

...tember loss, the models underestimate it by a wide margin as well. The study concludes that the actual rate of sea ice loss in March, which averaged about 1.8 percent per decade in the 1953-2006 period, was three times larger than the mean from the computer models. March is typically the month when Arctic s...