Duke Researchers Discover Central Role Of Nitric Oxide In Hemoglobin Action
... combined with hemoglobin, is a major regulator of gas exchange,as well as blood pressure, in the circula...r. Nitric oxide, long known as a noxious gas in the atmosphere, has been foundover the past several years to play a major role in numerous biolog...Dangerous Chemical Combination Presents Possible Scenario For Gulf War Illnesses
...pesticides,DEET and permethrin, and the anti-nerve gas agent pyridostigmine bromide(PB) were harmless whe...us. They said their resultsindicate the anti-nerve gas agent reduces the body's normal ability to inactivatethe two pesticides, which can then travel to an...Researchers Use Hydrated Lime To Reduce Toxic Selenium Emissions
...ng,have studied ways to capture selenium from flue gas before itescapes into the atmosphere. The research...es capture selenium and sulfur dioxide.As the flue gas moves upward, an electrostatic precipitator removesthe particles by electrical charging. The method,...Water Recycling Project Tested in Turkey Plant
...etreatmentand then four ozonation cylinders. Ozone gas is pumped into the cylindersto further clarify the water and kill microorganisms. Ozone kills bacteria3,000 times faster than chlorine. Depending upon the quality of incomingwater, the processors adjust the amount of ozone to maximize bacterial destr...Researchers Find Possible New Route to Making Cancer Cells Vulnerable
...ved the anti-rejection drugs acted like sludgein a gas tank, clogging the pump mechanism. But the Duke scientists showedthat FK506 and rapamycin also tie up a separate protein, called FKBP12,which they showed is an essential activator for the pump to work correctly.In other words, the two drugs primarily...Virginia Tech Researchers Receive Patent For Rapid Virus Detection Technology
...- "acellular equivalent of canaries used to detect gas in mines,"says Hagedorn. Presently, the presence of the bacterium, Escherichia coli ( E. coli ), is used throughout theworld as an indicator of human fecal contamination of water. Ifviruses able to infect E. coli are present in a water sample,the...Nitric Oxide May Hold Key To First Treatment For Deadly Form Of Malaria, Duke Scientists Report
..., combined with hemoglobin, is amajor regulator of gas exchange, as well as blood pressure, in the circulatorysystem. That work was published March 21 in the British journal Nature. The current discovery was made when the researchers were studying why somebacteria escape attack by immune system ......relatively big molecules and getting them into the gas phase. The solution containing the sample is spra...ate, leaving the sample's ionized molecules in the gas phase. These ions continue into the mass spectrometer, which is a sophisticated weighing machine. U...Nitric Oxide Found To Control Cells By Turning On Genes; Suggests New Role In Health And Disease
..., combined with hemoglobin, is amajor regulator of gas exchange, as well as blood pressure, in the circulatorysystem. That work was published March 21 in the British journal Nature. The current discovery was made when the researchers were studying why somebacteria escape attack by immune system ...Newly Discovered Bacteria Produce Magnetic Material
...ed in 1993 by Texacoengineers drilling for oil and gas deposits near the Chesapeake Bay as partof a collaborative arrangement between Texaco and DOE's Office of Health andEnvironmental Research. In a trailer near a derrick, Phelps studied samplesextracted by Texaco from a depth of 2800 meters (9100 feet)...Changing Continental Runoff Patterns Could Change Ocean Circulation
... atmosphere and sequester less of this greenhouse gas in the oceans. "It appears that salinity in the Tethys Sea was the mechanism that switched deep water formation from the cold poles to the warmer subtropics," says Bice. "In a future, warmer Earth, human alterations to fresh water runoff and s...North America Hit Hard By Asteroid Strike In Yucatan 65 Million Years Ago
...hoe-shaped craters, while high-speed film captured gas and materialsjettisoned downrange. The researchers said that biological evidence appears to support theiroblique-impact hypothesis. North America, the first region to experience thefireball, had the most severe extinctions of plants. After the deva...Medicinal Leech May Offer Clues To Neural Regeneration
...tes." When activated, NOS produces nitric oxide, a gas that in recent years has been recognized to act as a signaling molecule in vertebrates, including humans. As a signaling molecule, nitric oxide sends chemical messages to other molecules, setting up a chain of command to produce a specific response o...Team Identifies Switch For Tumor Suppressor Gene
...trol. "To grow correctly, a cell needs both a gas pedal and abrake pedal," says Ludlow. "The RB protein acts like the brakepedal, reining in growth in a precise and controlled manner.Disable that brake pedal and cells can grow out of control." The team's research is funded by the National Insti...Chemists Compute Answers To The Origin Of Gout
...ay at the new group are: A study of how nitrogen gas binds to natural enzymes and is converted to fertiliser so effortlessly when, for the same process, mankind uses industrial conditions requiring massive amounts of energy and high pressures The characterisation of new chemical compounds to help dete...Supelco Licenses ORNL Solid Sorbent Air Sampling Material
...heated to releasecollected samples into a modified gas chromatograph for analysis, explainedco-inventors Mike Sigman and Amy Dindal of ORNL's Chemical and AnalyticalSciences Division. The researchers benchmarked the sol-gel air sampling trap performanceagainst Supelco's popular multi-carbon air sampling ...Munching Microbes Make A Meal Out Of Toxic Substances
...hat can be a problem because the soil is silty and gas doesn't travel well through it. However, Nies says, there are some relatively simple methods for aerating soil, such as using blowers or compressors to pump oxygen into the earth. Contaminated areas that also affect ground water can be cleaned up usi...Bacterium gobbles up chlorinated pollutants
...e than ethene, also known as ethylene, the natural gas that causes fruit to ripen. Until the Cornell discovery, reported in the Science article "Isolation of a Bacterium that Reductively Dechlorinates Tetrachloroethene to Ethene," the best available bioremediation organisms could only reduce tetrachlo...Ozone 'Chat Room' Provides Real-Time Air-Quality Research
... major contributor to smog, ozone is an irritating gas formed when hydrocarbons mix with nitrogen oxide in sunlight. Industrial and consumer activities, most involving combustion, are behind the formation of ground-level ozone, and sunlight and high temperatures play key roles in driving atmospheric lev......deficit of carbon dioxide, however, lakes draw the gas directly from the atmosphere. Working on an iso... from the atmosphere. "This effect of fishes on gas exchange results from the changes in aquatic food webs that are regulated by the species of fish pr...