Alaska scientists find Arctic tundra yields surprising carbon loss
...e losses of carbon and nitrogen from the deep-soil layers was substantial and more than offset the increased carbon stored in the aboveground plants and plant litter. Because more than one-third of the world's soil carbon is stored in northern ecosystems boreal forest and Arctic tundra and is equivalent ...Green, leafy spinach may soon power cellphones and laptops
...emely efficient power source) by creating multiple layers of PSI or assembling them on rough surfaces or 3-D surfaces, like skyscrapers that concentrate a huge amount of surface area within a relatively small space. ...JCI table of contents September 15, 2004
...ne-marrowderived stem cells in the retinal nuclear layers of two different mouse models for retinal degeneration. The researchers found that, in both mouse models of retinal degeneration, whenever the transplanted stem cells stabilized and rescued the retinal blood vessels that would ordinarily completely ...Review article makes case for a new source of cells in the body
...cells come from one of the body's three basic germ layers laid down early in development called the mesoderm. The lining of the gut, the epithelium, comes from the endoderm, another germ layer. Now the science is showing that VENT cells contribute to all these tissues as well. Challengers say VENT cells ar...UV light, coatings reduce bacterial adhesion up to 50 percent
...t glass surfaces (silica dioxide) coated with thin layers of silicon dioxide, titanium dioxide or tin dioxide to eight different strains of bacteria, including some disease-causing types, and two different wavelengths of UV light. Measurements showed that the lower wavelength UVC light (254 nm) lowered cell...Body's own defense against H. pylori, cause of stomach ulcers and stomach cancer
... They isolated mucin from the upper and lower layers and found a key difference: surface-derived mucin actively supported H. pylori growth, while mucins from the second layer inhibited growth. H. pylori in the presence of alpha 1,4-linked N-acetylgucosamine lost its shape, became immobile, and eventu...News tips from the Journal of Neuroscience
...ntify a second site of plasticity: the superficial layers of the optic tectum (OT), an area that corresponds to the superior colliculus in mammals. While the potential for plasticity declines in the ICX beyond the age of 80 days, the higher-level OT retained the ability to adjust for 200 days. That's bad ne...Climate change could doom Alaska's tundra
... characterized by the permanently frozen deep soil layers called permafrost, few or no trees, grasses and dwarf shrubs, and an extremely short growing season. But it also supports brown bear, wolf, wolverine, caribou, arctic hare, mink, weasel, and lemming, and millions of migrating waterfowl. In summer it ...Research shows oceans are becoming more acidic
...will lead to changes in pH or acidity of the upper layers that are three times greater in magnitude and 100 times faster than those experienced between ice ages. Such dramatic changes in the CO 2 system in open-ocean surface waters have not been observed for more than 20 million years of earth's history, c...When sun's too strong, plankton make clouds
...s a contrast with cooler deeper layers. The deeper layers hold many of the nutrients that plankton need to l...yer creates almost a barrier from the cooler lower layers and less mixing occurs. Also, the shallow upper layer exposes the plankton to more UV light. Under c...New space-borne instrument to track greenhouse gases, ozone destroyers, and other pollutants
...LS will capture the chemistry and dynamics of four layers of the atmosphere that together span a region 8 to 80 kilometers (5 to 50 miles) above Earth's surface: the upper troposphere, the tropopause, the stratosphere, and the mesosphere. Using infrared radiation as its yardstick, the radiometer will look t...Melting ice cap gives urgency to new census of marine life project in Arctic Ocean
...ting area." They will study life in the three main layers of the water column a low-density surface layer, an intermediate layer which receives warm, salty water from the Atlantic, and a deep dense layer formed through convection. Also of particular focus will be biodiversity around the mouths of Russian a...Energy conservation targets hit by notions of 'comfort'
...European countries, the convention of adding extra layers of clothing in winter or taking a siesta in summer has become almost obsolete. The 'Future Comforts' project, which was part of ESRC's Environment and Human Behaviour Programme, set out to examine changing conventions and technologies of indoor envi......ation Society (WCS)--captures and conveys the many layers of this vast and storied landscape in a manner combining accessibility and solid research. "Our intention was to produce more than a reference book," said Jerry Jenkins, author of The Adirondack Atlas and researcher for WCS's Adirondack Communities...Earstones tell fishes' tale of early life in the Colorado River estuary
... more of the lighter form of oxygen, oxygen-16, so layers with more oxygen-16 represented years that the fish had spent in brackish water. If the layer had more of the other form, oxygen-18, that meant the fish spent that year in the saline ocean water. Rowell found that the corvina had spent part of their ...Junk DNA yields new kind of gene
... on here, we have been wrong. There are additional layers of complexity."...Cancer drug resistance research leads to possible therapeutic target for Alzheimer's disease
...like extensions of the nerve cells--in alternating layers of protein and fat. A new model of human brain aging (Neurobiology of Aging, January 2003) postulates that mid-life breakdown of myelin could be a possible key to the later development of Alzheimer's disease. "Imaging studies and examination of brai...Wisconsin chemists find a new chink in TB's armor
...nner membrane. Atop that structure, are three more layers that further insulate the microbe from attack by traditional antibiotics. The enzyme is required for the TB bacterium to build its cell wall. The enzyme, in turn, depends on a derivative of vitamin B2 to make a cell wall building block. The work p......gle-celled floating plants. They inhabit the upper layers of any natural body of water where there is enough light to support photosynthetic growth. They are the base of the ocean's food web, and their production helps to regulate the global carbon cycle. They also contribute to the global cycling of many o......dient as it rises in a smooth slope from the outer layers inward. Next, they continued their work on kidneys with altered function to see how effective a diagnostic tool the sodium imaging is. When the kidneys were treated with one of two commonly used diuretic drugs, which increase water out-flow, not only...