Biochemist Solves Riddle Of Collagen Stability
...hritis. "In arthritis sufferers, the body's immune system is tricked into thinking its own collagen is a foreign entity that must be destroyed," Raines said. "That process might be triggered when collagen begins to unfold." Collagen therapy could work much like bone or skin grafting, where new material repl...Scientists Find Further Global Warming Evidence In Temperature Reconstruction Study
...gnificantly, but which are not part of the climate system itself. Based on statisticalcomparisons of reconstructed northern hemisphere temperatures, the bestestimates indicate that natural changes in the brightness of the sun andvolcanic emissions both played an important role in governing climate variatio...Electron Accelerator Provides Unique Proof Of Gene Repair Process In Living Cells
...s John Petrini. "But our cells are equipped with a system that constantly monitors and repairs the damaged DNA." Petrini and his colleagues have focused their efforts on the system, a four-protein complex called MR95. In undamaged cells, MR95 also regulates DNA recombination, part of the cell-development cy...Chocolate Treats Can Land Racehorse Trainers In Trouble
...theobromine.Both substances stay in a horse’s system longer than a human’s. “This study help...8; Sams said. While caffeine is a central nervous system stimulant in horses, as itis in humans, it would take several grams of caffeine to affect the perfor...Poison-Eating Bugs Strike Gold
... by the Homestake mine in the United States, this system uses uniquely Australian organisms adapted to the...on process. "We have put them to work in a new system for purifying the waste water, and so far they have managed to reduce the concentration of toxin i...Bison Grazing Increases Biodiversity In Grasslands
...ison preferentially graze these grasses, keeping a system of checks and balances working properly, and allowing many plant species to flourish. "Extirpation of native grazers, habitat fragmentation, increased nitrogen deposition from the atmosphere, and altered fire frequency have disrupted grassland ecos......est scientific society. A termite nest is a closed system which protects the termites in a microclimatethat is controlled and different from that of the surrounding environment,Henderson says. As a soil-dwelling creature, Henderson notes, the termitesconfront many adversaries such as ants, fungus, bacteria...... often the only contact women have with the health system and thus an important opportunity for educating women about protecting themselves from HIV/AIDS. Stressing the need for a partnership among governments in the region, donor nations and the private sector, PAI calls on governments to further expand ...Precursors To Red Blood Cells Form Earlier Than Previously Thought
... the body of the fetus and inadults.Using an assay system developed by co-authors Gordon Keller,Ph.D., and Marion Kennedy, Ph.D., of the National Jewish MedicalCenter in Denver that can distinguish between primitive anddefinitive red blood cell precursors, the research team foundthat definitive red blood ce...Research Sheds Light On How Plants Regulate Distribution Of Nutrients
...motically drivenpressure-gradient -- in a vascular system that regulates and directs wherelife-giving resour...o-author on thePNAS paper, discovered a regulatory system that controls the long-distancetransport of sucrose. "This paper provides the first clue to a syste...Wistar Research Yields Information About Colorectal Cancer Cell Invasion
...gen is defined as any agent that elicits an immune system response. Under normal conditions, antigens stimul...s likeinterleukin-12, which are helping the immune system fight bacteria, parasites,viruses and cancer; and location of genes that contribute to the developme...Reports Mesh To Clarify Proteins' Importance For Cancer
...BS),as well as broader insights into a fundamental system that can lead tomalignancy when it fails to functi...s remodeled and diversified. Adefective DNA repair system can throw the cell into serious disarray, and theresult can be devastating mutations that may ultima...3,500 Earth And Space Scientists To Report Latest Findings At Boston Meeting
...theEarth's central core to the limits of the solar system at the May 26-29 SpringMeeting of the American Geophysical Union in Boston. This will be AGU's firstmeeting in Boston and several of the scheduled sessions are of particularinterest in the area, including those on earthquake hazards in the region,Bos...New Machine Slashes Time, Cost To Make Unique Lenses
...h Projects Agency (DARPA), have developed thefirst system to automate the manufacture of unusually shapedlen...itional spherical lenses. The new aspheremachining system greatly streamlines production; engineersbelieve the machine will push costs down to as little as $2......tigating theevolution of sight and how the nervous system reacts to new sources ofinformation, says Michael ...ent. "We are investigating how the nervous system reacts to new information,"he explains. "We want to know how adaptable the neural system is. Does it...High-pressure Oxygen Therapy Could Offer Widespread Benefits
...tating traumas and diseases of thecentral nervous system to warrant in-depth scientific studies, a medicalr...these injuries mayoccur because of abnormal immune system response to the return of blood flow. These injuries seem to benefit from hyperbaric oxygen ...The Distinctive Sound Of Cholesterol
...ce provides an inexpensive, non-invasive screening system that doctors can use in their offices during routi...cts to the sound of breaking glass and a detection system that warns if gas is leaking from pipelines or storage tanks. He suggested that a similar device cou...Biosphere Lessons Can Be Applied To Space, Former Crew Co-Captain Says
...m of scientists who livedin the Biosphere 2 closed system from 1991 to 1993 can be applied to spacetravel, according to Sally Silverstone, co-captain of the crew. Long-term space missions will require life support systems similar tothe steel and glass structure north of Tucson, Ariz., where eight sc...Biggest Acoustics Meeting Ever
... developing an acoustically based insulin-delivery system for people with diabetes. In another area,Leonard ... controlthese noises, Heckl has devised a feedback system that stabilizes the vibrations of the train wheels (2pSA1).Investigating the noise from another incr......s -- levels that do not affect the mother's immune system -- produce serious long-term immune system defects as the young rats mature," says Rodney R. Dietert, professor of immunotoxicology in Cornell'...