Corals switch skeleton material as seawater changes
...letons and used X-ray diffraction to analyze their mineral composition. He was surprised to find that corals grown in the artificial seawater with a magnesium-to-calcium ratio less than 2-to-1 began producing a large portion of their skeleton with the calcite mineral, while those grown in unmodified modern s...Watching rocks grow: Theory explains landscape of geothermal springs
...ructures don't depend on the rock structure or the mineral content the statistical properties of the landscapes can be computed precisely." The Illinois team was able to analyze such complex landscapes by using novel computational tools that they related to more standard mathematical approaches. Compose...Wildlife conservation and energy dev't study seeks balance in Rockies
...ither body mass (a measure of an animal's health), mineral deficiencies, disease, fecundity, or contaminant levels, indicating that proximity to development had no effect on the health of the pronghorn. Renowned for its natural beauty and abundant wildlife populations, the Upper Green River Basin in western ...Thawing soil in permafrost a significant source of carbon
...prisingly high carbon concentration at depth for a mineral soil," said Terry Chapin, co-author from the Institute of Arctic Biology at UAF. "This paper explains the processes that led to the accumulation of large amounts of soil carbon and the processes that could lead to its return to the atmosphere." The l...Arctic expedition will investigate alien-like glacier
...99 and 2001 and collected samples of the water and mineral deposits from the spring, which contained new forms of bacteria and an extremely rare mineral known as vaterite. Sulfur-loving organisms have been found living in extremely hot water around geot...Surprising symbiosis: Glassy-winged sharpshooter eats with friends
Rockville, MD--Like a celebrity living on mineral water, the glassy-winged sharpshooter consumes only the dilute sap of woody plants--including grapevines in California, which is feverishly working to prevent the insect's flight into prized vineyards. Now, in a surprising study published in the Jun...Acid rain causing decline in sugar maples, say researchers
...e) watersheds. On one 25-acre site, a calcium-rich mineral called wollastonite was spread in pellet form by helicopter in October 1999. The other site served as a control. While the pellets dissolve slowly over five to 10 years, the researchers were surprised to find that by summer 2002, the soil acidity in...Virginia Tech student selected to meet Nobel Laureates
...cs of electron movement through the protein to the mineral surface. "The proteins have a system of iron atoms that are so close together that electrons can essentially hop across the gaps," he said. The research is part of a multimillion-dollar DOE project at PNNL. Wigginton, who has been working on a resear...Super-sized cassava plants may help fight hunger in Africa
...onal scientists focused on increasing the vitamin, mineral and protein content of the plant....OHSU studying drug for bone-deforming disorder
... and their spine, hip, forearm and total body bone mineral density will be measured every six months. FORTEO offers hope of suffering fewer bone fractures for individuals with OI such as Anton Borissov, a 40-year-old Portland resident who has never walked and lives in his wheelchair. It also will increase aw...Methane-belching bugs inspire a new theory of the origin of life on Earth
...ative called an acetate thioester. Attached to the mineral surface, a "protocell" containing primitive forms of these two enzymes could then have generated biochemical energy by converting this derivative back to acetate. Excreting acetate would have completed the cycle. "Our paper," House suggests, "contain...Research into salt, oil, ice and fossils
...ia Christian Hallmann specialises in research into mineral oil deposits. In his graduate dissertation he stud...is investigating the changes in the composition of mineral oil caused by various processes in the deposits. Among Christian Hallmann's other research interests...Soil-bound prions that cause CWD remain infectious
...d. As animals regularly consume soil to meet their mineral needs, it's possible that prion-laden soil particl...t result indicates that interactions with the clay mineral do little to reduce prion potency," says co-author Debbie McKenzie, a senior scientist in UW-Madison...Bone and cartilage growth to blame for heart valve disease
...art of the aging process as deposits of calcium, a mineral found in the blood, built up on the valves. Therefore, research has never focused on preventing the problem," says Dr. Rajamannan. "Currently the only option is to surgically repair or replace the damaged valves. Our findings open the door to the ...Mars challenge is protecting humans from long space travel and heavy metal ion bombardment
...run the possibility of losing nearly half the bone mineral in some regions of the body, which would make the astronauts' skeletons the equivalent of a 100-year-old person," he said. Such fragile bones could fractures, which would be a most unwelcome challenge. "Another that's less well-known," he said, "is t...Mars meteorite similar to bacteria-etched earth rocks
...y began at a fracture in the rock or the edge of a mineral where the water was present. Igneous rocks are initially sterile because they erupt at temperatures exceeding 1,000 degrees C. and life cannot establish itself until the rocks cool. Bacteria may be introduced into the rock via dust or water, Fisk po...Relic of life in that Martian meteorite? A fresh look
...acromolecular carbon is always associated with the mineral magnetite. This association is important because magnetite is known to act as a catalyst in the formation of MMC. Macromolecular carbon present within the carbonate globules in ALH84001 may represent the first evidence of non-biological synthesis of ...NSLS student-researcher talks at the March APS Meeting
... shells. Recently, she studied the "growth" of the mineral calcium carbonate on a protein-fiber network. Her results show that the strength of the mineral increases over time as it covers the fibers. This is unlike stand-alone calcium carbonate. Additiona...Exposure to volcanic mineral associated with increased mesothelioma incidence in Turkey
High exposure to a fibrous volcanic mineral called erionite was associated with a high inciden...bitants are likely exposed to hazardous amounts of mineral fibers from the environment. Resources should therefore be directed to preventing these environmenta...Providence health system shows investigational osteoporosis therapy increases bone mineral density
...osumab, demonstrated significant increases in bone mineral density (BMD) in postmenopausal women with osteopo...ne loss that leads to low BMD and fractures. Bone mineral density is often used to gauge a person's risk of fracture. These research findings, which were publ...