Tag: "polar" at medical news
Giant iceberg B-15A edges past floating ice pier
...becomes even more useful for monitoring changes in polar
ice and tracking icebergs. Its radar signals pass freely through the thickest polar
storm clouds or local darkness. And because ASAR measures surface texture, the sensor is extremely s...
Benign separation process being advanced for pharmaceutical industry
...ide is not polar, so could not be used to separate polar
drugs, or ionic analytes. "We discovered you can add a small amount of polar
solvent that contains an ionic component that will allow carbon dioxide to separate ionic analytes,"...
UCLA-VA study names India dietary staple as potential Alzheimer's weapon
...The researchers found the low molecular weight and polar
structure of curcumin allow it to penetrate the blood-brain barrier effectively and bind to beta amyloid. In earlier studies (Journal of Neuroscience, 2001; 21:8370-8377; Neurobiology of Aging, 2001; 22:993-1005), the same research team found curcum...
Gene mutations responsible for childhood cataracts discovered
...ne as a significant cause for congenital posterior polar
cataracts in four unrelated families from three ethnic groups. According to Zhang, there are only two other gene mutations that have been identified for this type of cataract. Cataracts, or a clouding of the lens of the eye, are the most common cause...
Primary instrument is delivered for ESA's CryoSat mission
...bserved, and also accurately survey the surface of polar
ice-sheets, which are kilometres thick, in order t...difficult to predict what effect this is having on polar
ice cover. Since ice plays such an important role in the regulation of the Earth's climate and sea-l...
Coast-mapping satellites will follow the tides
...if weather conditions are right. Both tropical and polar
coasts may stay enshrouded in cloud and precipitation for weeks or months at a time. Radar sensors such as the Advanced Synthetic Aperture Radar (ASAR) aboard ESA's Envisat can penetrate cloud cover as well as local darkness. They work on the basis ...
Envisat Symposium day one: Steady symphony of Europe's largest satellite
...ng. Envisat was praised as a worthy "toolbox" for polar
research by Duncan Wingham of University College London. He recounted how results gathered by the satellites and its ERS predecessors have already greatly reduced the mass balance uncertainty associated with the Antarctic ice sheets basically wheth...
Envisat witnesses return of the South Polar ozone hole
...ral pattern, when a late September slowdown of the polar
vortex caused the ozone hole to split in two and d... mid-latitude air by prevailing winds known as the polar
vortex. This leads to very low temperatures, and in the cold and continuous darkness of this season,...
Envisat images delivered to Antarctic eclipse spotters
...stomed to near-permanent daylight during the south polar
summer but they are not reported to have become upset. A project called Antarctica 2003 has enabled thousands of school children across the world to follow the Kapitan Khlebnikov's journey to this remarkable event from their computers. The Internati...
Near-real time ozone forecasting made possible by Envisat
...Centre for Medium Range Weather Forecasts, because polar
stratospheric clouds transported by winds play a major role in the process of ozone destruction." Users of the service available at http://bascoe.oma.be - can obtain forecasts of global ozone levels for the week ahead as well as maps of nitric ac...
NSF considers alternatives for treating ill South Pole worker
...ght through the cold and darkness of the six-month polar
night was one of the most challenging on record. ... potentially challenging weather conditions of the polar
spring. Spring warming produces strong winds and extremely changeable weather that is difficult to p...
Four researchers awarded Dutch Nobel Prize
...xpert on the relationship between the state of the polar
icecaps and climate. He has improved our understanding of the worlds present climate but also established new insights into the causes of climate changes during the ice ages and how they affected the level of the sea. He was the first investigator to...
Chronic lead contamination in San Francisco Bay shows long-term persistence of lead from past use of leaded gasoline
...ons have fallen in urban air, ocean surface water, polar
ice and snow, and even human blood. But the UCSC researchers now show that contaminated rivers and estuaries can retain pollutants like lead for a very long time. Douglas Steding, a graduate student in Flegal's lab, is the first author of the study. ...