Students build submarine to track Octopuses
...m also will modify Shadow's buoyancy system. Water flows into a ballast ring that circles the center of the sub. The amount of water that it takes on determines the sub's buoyancy, allowing it to submerge to any depth. Compressed air tanks on the sides of the sub blow this water out to bring Shadow to the ...Environmental costs of home construction lower with wise choice, reuse of building materials
... electricity for steel mills. "Everything kind of flows from energy consumption," Lippke says. "If you're using energy, you're polluting water, polluting air and kicking out carbon dioxide emissions." Indeed, the carbon emissions associated with energy use represented one of the more important environmen...Gene changes linked to increased eye pressure may have implications for glaucoma therapy
...y body, a tissue beneath the eye's iris. The fluid flows around the iris and out through the trabecular meshwork, or TM, a spongy tissue that provides resistance and maintains the pressure, Borrs said. Often in glaucoma, the TM stops working and fluid builds up within the eye, causing pressure inside......dslides and 800 degree Celsius heat of pyroclastic flows and the ways in which they altered the landscape. His talk "Geological and ecological settings of Mount St. Helens before and after May 18, 1980" will describe the link between the reshaped geophysical landscape and the plants and animals living on ...UCSD team determines cellular stress within body is critical
...an that inside the cell. When this happens, water flows either into or out of the cell by osmosis, thereby altering the intracellular environment. Hyperosmotic stress causes water to diffuse out of the cell, resulting in cell shrinkage, which can lead to DNA and protein damage, cell cycle arrest, and ult...Physicists reveal first 'nanoflowers'
...uters. The wires grow as a gas containing methane flows over the surface. The gas reacts at the surface of the droplets and condenses to form the wires. By changing the temperature and pressure of the growth process the wires can be controllably fused together in a natural process to form a range of new s...New national research effort needed to secure clean, adequate water supply in coming decades
...ecent drought. And regulation of water levels and flows in the Klamath and Missouri rivers have sparked considerable debate as well. "Decision-makers at all levels of government are going to have to make difficult choices in the coming decades about how to allot limited water supplies, and they need soun...Hidden cost of Colorado River diversions is $2.4 billion annually
... year because the Colorado River's water no longer flows all the way to the Gulf of California, says a University of Arizona researcher. It's the first dollar estimate of the benefits society would get from the natural functioning of a healthy Colorado River delta. Functioning ecosystems provide benefits, ...Deciphering the limits to human maximal exercise performance
...ht position the combined maximal arm and leg blood flows surpass the maximal pumping capacity of the heart. The latter means that to avoid hypotension during maximal exercise in the upright position, humans must restrain the voracity for blood flow of active muscles. This finding may facilitate the compre...Antibiotics alter GI tract microbes and increase lung sensitivity to allergens
...em in the human body. Every time you inhale, air flows past mucus-producing cells and tiny hairs designed to trap bits of pollen, dust and spores before they enter the lungs. These trapped particles are swept into the stomach with saliva and mucus as you swallow. "Anything you inhale, you also swallow,"...Field Museum gives Parker/Gentry Award to Chinese conservationist
...nd conservation ecologist at The Field Museum. "It flows through the home to some 7,000 plant species, a significant number of them endemic to the region, and 80 rare or endangered animal species, including the snow leopard and Yunnan snub-nosed antelope. Almost certainly, it is home to new species waiting...Mimicking humpback whale flippers may improve airplane wing design
...during flight. Stall occurs when the air no longer flows smoothly over the top of the wing but separates from the top of the wing before reaching the trailing edge. When an airplane wing stalls, it dramatically loses lift while incurring an increase in drag. As whales move through the water, the tubercles ...'Cardiofunk' mutation: Probable source of congenital heart defects
...closes so that when the ventricle contracts, blood flows forward into the embryo's circulatory system instead of backward into the atrium. But in the mutants, blood flowed back and forth between the atrium and ventricle, never leaving the heart. The researchers expected the mutation responsible for the val...Physics tip sheet #41 - April 5, 2004
...critical amount, the suspension jams; otherwise it flows freely. Jamming takes place even though the tube is many times wider than the beads, an effect the author likens to "a traffic jam on a 500-lane highway." The system also displays a "self-filtering" effect-- the concentration of beads decreases after...NJIT chemists pave way for cheap, usable field test for polluted, toxic, water, air, food
...e extraction in micro channels through which fluid flows on nanoparticles. Mitra's research interests include the development of analytical techniques and the applications of chemometrics to analytical and environmental problems. Current projects include: developing instrumentation and methods for ...Banned chemical travels across three oceans
...China and India but followed atmospheric and water flows across the Pacific, Arctic and Atlantic oceans to end up in eastern Canada. Frigid northern temperatures slowed its evaporation and degradation rate and trapped the chemical until it hit warmer waters where it will eventually evaporate. "The Arctic ...Method produces uniform, self-assembled nanocells
...nnels produces nanocells of specific sizes. Faster flows produce smaller cells. Medicine-filled liposomes made in nanosizes should allow for more accurate drug delivery. In particular, liposomes have been studied for years as a way to concentrate the effectiveness of cancer chemotherapy while minimizing ha...University of Delaware lays keel for new research vessel
...he Delaware Coastal Current, a strong current that flows out of Delaware Bay, takes a right turn, and then continues to hug the coast until it diminishes along the northern shores of North Carolina. "Discovering this current and understanding how it works has resulted in a number of applications and benefi...New evidence points to pollution as main cause of much coral reef destruction
...n inland pond with relatively high nitrogen levels flows through a natural mangrove channel and into the oc...en concentrations pours out into Florida Bay, then flows out to numerous coral reefs. Nonetheless, current Everglades restoration plans, which call for a dra...UI researchers discover new activity in cystic fibrosis protein
...ells. When the channel is open, the salt chloride flows through it from one side of the membrane to the ot... of ATP to power enzyme activity. Because chloride flows passively through the CFTR channel, it has long seemed puzzling that the opening of CFTR would requi...