Mechanical forces found to exert larger role in blood vessel health and disease
...ey are currentlystudying. Certain effects of fluid flows on smooth muscle cells become especiallyimportant when these cells are exposed directly to blood flow, for example,during angioplasty, vascular grafting or other surgical interventions, Tarbellnotes. In their recent laboratory studies with ra...Agronomists offer alternative approaches to gulf pollution
...e zone is thought to exist because excess nitrogen flows down theMississippi River each summer. Nitrogen is an important plant nutrient, and withso much of it in the gulf, small aquatic plants such as algae grow so much thatthey cause a lack of oxygen in the sea water. The White House Office of Science...Jet Stream Studied In West African Drought
... the IndianMonsoon. The Tropical Jet is higher and flows at about 40,000 feet above theEarth's surface and the African Jet is at about 10,000 feet. Mikovitz and Dr. Gregory S. Jenkins, assistant professor of meteorology,looked at the average precipitation per year and the long-term averages andcom...Magnetic Fluids More Complex Than Previously Thought
...ssor Alice Gast. "As a result,the suspension still flows relatively easily. When they are exposed to amagnetic field, however, the particles turn into tiny magnets and rapidlyform into long chains. A high magnetic field turns the suspension into asolid." Furst has a gadget - provided by the Lord Corp. of C...UCSF-Led Team Offers New Insight Into Neurological Basis Of Dyslexia
...ortical areas, whereinformation about aural speech flows into the cerebral cortex's processingsystem for language. Poor readers did report hearing the two very brief sounds, and often knew thatin some way they weren't the same, but they were unable to identify them, or toreliably reconstruct the sequence ...New Carbon Monoxide Sensor Developed For Occupational Use
...l the system. "When the user removes the cap, air flows into the diffusion tube at a constantrate over the sampling period, typically an 8-hour work shift," Apte explained."CO in the air reacts with the sensor at the end of the tube, turning it fromyellow to blue in proportion to CO exposure. Analysis is ...Seabed Silt In Indian Ocean Consists Of Remains Of Summer Plankton
...olved the use of automated sediment traps in which flows of marine material were caught while settling to the deep ocean floor. Because the blooming of plankton is greatly dependent on the monsoon climate, the analysis of oceanic sediments provides insight into climatic changes in the past. Only the tough...Rivers May Be Emitting Substance Involved In Ozone Destruction
...effluentfrom municipalities and groundwater return flows from irrigated fields. Themeasurements were taken along a 450-mile stretch of the river from North Platte,Neb.,to just above Denver, Colo....Recycling Of Packaging Yields Environmental Gains
...sses in connection with increased transport. Waste flows in society are small compared with the total flow of materials.Waste movementsaccount for just 1,2% of all transport by truck, packaging being an even smallerpart. Fuel from landfill sites "The environmental gains from recycling rigid polythene are...Old Growth Forests May Shed Light On Worldwide Greenhouse Effect
...n early 1998, Chen and his teambegan measuring the flows of carbon dioxide and water on 550-year-old and40-year-old Douglas fir forests at a research site near the Wind River insouthern Washington. Their initial data suggested that both the old growth andthe 40-year-old forest absorbed more carbon than t...Long Lava Flows May Have Taken Years, Causing Global Cooling And Extinctions
...schallenging the century old theory that long lava flows must be formed bymassive, but short lived, volcani...f Geophysical Research, suggests that some ancient flows of up to 100miles in length built up gradually over years, rather than quickly in just days.This fin...Evidence For Earliest Maritime-Based Societies In The Americas Reported In Science Magazine
...tchered. Evidence of catastrophic floods anddebris flows at Quebrada Tacahuay suggests that the site's inhabitants abandonedit for about 3500 years and that El Nio was active during this time. After tracing obsidian flakes found at Quebrada Jaguay to their probable sourceup in the Peruvian highlands, Sandw......ects. An LED gives off light when electric current flows through it. Both CDplayers and communications systems involving optical fibers use LEDs. However,applications for LEDs have been limited because, until recently there were fewmaterials that emit blue light efficiently. For example, a CD player uses a...Groundwater Injection Process Filters Out Contaminants
...150 feet wide forgroundwater to pass through as it flows toward the river. As the groundwatercrosses the barrier, targeted contaminants are destroyed or immobilized. After about 30 hours, sodium sulfate, a nontoxic byproduct, is removedover a one-week period. Unlike pump and treat methods of reme...Purdue Golf Course Serves Double Duty As Research Lab
...hborhood now is filtered by the golf course as it flows toward the bog; many of the pollutants break down into harmless components. The water that passes through the course is drained into 15 acres of man-made wetlands that border the Celery Bog. From there, the water is used to irrigate the course, gi...DFG To Set Up 14 New Collaborative Research Centres
...ically toexplore possibilities of controlling such flows with a view to reducing the noise developmentand increasing the efficiency of fluidic configurations. These include aircraft wings as well asequipment used in chemical engineering and environmental technology. The collaborative research centre "Desig...EPA And UC Researchers Find Bacteria That Can Destroy Giardia Cysts
...train which coulddegrade Giardia in a creek that flows into Kentucky'sLicking River. He then took the strain to Kinkle's lab forcharacterization by graduate student Stacy Pfaller. It turned outto be a member of the genus Flavobacterium . "This is an interesting group of microorganisms," said Kinkle,"whi...The Fishing Hole Had Better Be Upstream From Commercial And Industrial Centers
...on. It's hard for them to deal with the suddenhigh flows and pollution in runoff from paved surfaces." McTammany's presentation ("The Impact of Urbanization Type and Degree onBenthic Macroinvertebrates and Stream Quality," on Tuesday, June 9, at 11:10a.m. in St. Louis Ballroom E of the Adam's Mark ......superfluid atextremely low temperatures so that it flows up container walls and out of the containerwithout any frictional loss. In the research unit Transport phenomena in superconductorsand superfluids experimental and theoretical physicists at Bayreuth University intend toinvestigate these effects, desc...