Climate change and permafrost thaw alter greenhouse gas emissions in northern wetlands
...eat blankets the permafrost and protects it like a thick layer of insulation. We find permafrost in peatlands further south than in other boreal ecosystems due to the insulating qualities of peat. So we have argued that these ecosystems serve as a very sensitive indicator of climate change, Turetsky sai...Greenland's ancient forests shed light on stability of ice sheet
...t of the Earth's terrestrial surface is covered by thick ice sheets, it could open up a world of new discoveries."...Oldest DNA ever recovered suggests earth was warmer than previously believed
...NA was discovered at the bottom of a two kilometer thick ice sheet and came from the trees, plants and insects of a boreal forest estimated to be between 450,000 and 900,000 years-old. Previously, the youngest evidence of a boreal forest in Greenland was from 2.4 million years ago. The results of the res...American Chemical Society's Weekly PressPac -- June 27/July 3, 2007
... to single wall carbon nanotubes (SWNTs), one-atom thick sheets of graphite rolled up into a cylinder with a diameter about 50,000 times smaller than the width of a human hair. The SWNTs act as efficient transporters for the platinum warhead, carrying it to the tumor cell and then releasing the platinum as...St. Jude study yields secrets of chromosome movement
...then further compacted to form the characteristic, thick structures commonly recognized in illustrations and photographs as chromosomes. At the centromere, DNA is packaged into an even more compact and specialized form of chromatin called centromeric heterochromatin. The centromere is the last point at ...Furry-clawed Asian crabs found in Delaware and Chesapeake Bays
...tuaries for reproduction. Named for the unusual thick fur-like coating on its claws, the mitten crab looks very different than native crabs and is easily recognized. It is listed as injurious wildlife under the Federal Lacey Act, due to its potential to cause ecological and economic damage. We dont k...Colorado River streamflow history reveals megadrought before 1490
...rees and looked at the rings' tell-tale pattern of thick and thin that indicates wet years and dry years. Extending the record further required an underutilized technique, the analysis of logs, stumps and standing dead trees, known as remnant wood. Baisan said, "Everyone was surprised that we could d...DNA analysis suggests under-reported kills of threatened whales
...retailers and then sold over the next few weeks in thick slices of skin, blubber and meat usually without refrigeration. Using their "capture-recapture" model, which is based on statistical probability, the researchers estimate that the true number of minke whales that likely passed through Korean marke...Key found to kill cystic fibrosis superbug
...erited disease where the lungs become clogged with thick mucus, often leading to chronic respiratory infections. The team of researchers has identified a weakness in the armour that protects the B. cenocepacia bacterium from the effects of antibiotics. They hypothesize that preventing the synthesis of a...Researchers find level of special protein is critical to proper formation of muscles
...-45 prevents the myosin proteins from binding into thick filaments and leaves them free-floating and vulnerable to the UPS. The result is a partially paralyzed worm whose muscles show visibly smaller fibers. "This kind of process that we're seeing in our worms is likely to be important in both the buildi...Invasive grass may impede forest regeneration
...ht, Microstegium can grow rapidly, often forming thick organic mats on the forest floor that directly impede the regeneration of native woody species by blocking sunlight, and indirectly by blocking seeds from reaching the soil in order to germinate," says Chris Oswalt. "This grass, which can be easily o...Story tips from the Department of Energy's Oak Ridge National Laboratory, March 2007
...ysts must be applied to transform biodiesel from a thick and sticky substance into a fluid form that can easily be pumped into vehicles. Following this process, these corrosive catalysts must be neutralized and washed from the fuel. ORNL researchers Sheng Dai and Chengdu Liang, funded by DOE's Office of Ba...500,000 years of climate history stored year by year
...igh tech equipment they want to cut drill cores as thick as a mans arm out of the lakebed sediment from a big floating platform not an easy task at depths of 380 metres. The researchers want to drill down to a sediment depth of 250 metres. For this they have applied for funding by the International Contin...Super small nanoelectrodes can probe microscale environments
...be with a thin film of gold about 10-50 nanometers thick (a nanometer is 1 billionth of a meter.) The gold layer is then coated with an insulating polymer coating about 10 nanometers thick. Lastly, the researchers use a focused ion beam to slice off the end of the nanotube, exposing a conducting ring of go......planes pulled out of bulk crystals. These one-atom thick materials have rapidly become one of the most prov...at extremely thin membranes that are only one atom thick can be produced. And we also believe that this technology can be adapted for use in real application...Whole body regeneration from a blood vessel
... a hollow sphere, then reorganized into a thin and thick layer on opposite sides, very similar to early sta...elopment. As cells proliferated, buds grew and the thick cell layer folded inward, forming double-walled folds and chambers. Organ development continued and ......e Earth, normally covered by crust many kilometres thick - is exposed on the seafloor, 3000m below the surface. Marine geologist Dr Chris MacLeod, School of Earth, Ocean and Planetary Sciences said: "This discovery is like an open wound on the surface of the Earth. Was the crust never there? Was it onc...Looking for life on Jupiter's icy moon Europa
...d largest of Jupiter's moons, is thought to have a thick ocean of water overlain by a layer of ice that could be miles thick. "Life thrives in ice, it doesn't mind at all," said Lipps, whose interest in single-celled organisms drew him to consider the possibility of life on other planets, which is likely...Super-thin membrane, 50 atoms thick, sorts individual molecules
...late objects as small as a molecule. The 50-atom thick filter can withstand surprisingly high pressures and may be a key to better separation of blood proteins for dialysis patients, speeding ion exchange in fuel cells, creating a new environment for growing neurological stem cells, and purifying air and......ars is not protected by a global magnetic field or thick atmosphere and for billions of years it has been laid bare to radiation from space. The team quantified how solar and galactic radiation is modified as it goes through the thin Martian atmosphere to the surface and underground. Three different surf...