UC Riverside scientists isolate microorganisms that break down a toxic pesticide
...ial strains that we isolated using endosulfan as a sulfur source could degrade about 70% endosulfan." Total average annual use of endosulfan is estimated at approximately 1.38 million pounds of active ingredient. Classified as an organochlorine (the same family of pesticide as DDT and dieldrin), endosulfan ...Scientists find geochemical fingerprint of World Trade Center collapse
...attan. The high levels of calcium, strontium, and sulfur concentrations found in the near-surface sediments of the cores, are consistent with presence of gypsum as a parent material. Gypsum is extensively used as drywall in building construction. Copper and zinc are also common components of building mate...Photosynthesis analysis shows work of ancient genetic engineering
... filamentous bacteria; Chlorobium tepidum, a green sulfur bacteria; Rhodobacter capsulatus, a proteobacteria; and Heliobacillus mobilis, a heliobacteria. They found a set of 188 genes that appeared to be related (orthologous) between these organisms. The five species belong to very separate classifications,...Focusing on preservatives: How they keep food fresh
...eps golden raisins golden? Sulfur dioxide. What is sulfur dioxide? A preservative. What do preservatives do? They keep foods fresh and inhibit the growth of bacteria, yeasts or molds. Everyone has heard about food preservatives, but how do they work? Chemical & Engineering News , in the Nov. 11 issue, exp...New nanoparticle coating mimics dolphin skin
...f the greenhouse gas carbon dioxide in addition to sulfur and nitrogen oxides, which promote acid rain. Wooley presented her research to an international group of science writers, Oct. 27, 2002, at the Council for the Advancement of Science Writing's New Horizons in Science 40th Annual Briefing. New Horizo...Evolution upset: Oxygen-making microbes came last, not first
...mparing it to the geochemistry of ancient iron and sulfur deposits, Carrine Blank of Washington University h...bled them up. The earliest geological evidence for sulfur bacteria is changes in sulfur isotopes indicating organisms are preferentially using isotopes of th...Researchers create new strategy for removing arsenic from soil
... in the aboveground tissues and increasing organic sulfur 'sinks' throughout the plant would result in both ...e the second gene, ECS, comes in. ECS creates more sulfur sinks to bind tightly to arsenate, making it less biologically available. And instead of dying from ...New study of Ground Zero air shows indoor spaces can be cleaned; diesel pollution remains a threat
... were analyzed for very fine particles of silicon, sulfur (sulfate), vanadium, nickel and lead, all of which...require trade-center-related vehicles to use lower sulfur fuel and these filters has been introduced in the New York City Council (Intro. 191) by Councilman A...Laboratory study explains clinical promise of anti-angiogenesis cancer drug
...ic disorder known as Wilson's disease. Made up of sulfur and molybdenum, TM latches on to copper in the blood, and to a protein called albumin, in a process called chelation. The three-part complex formed by this bonding is then eliminated by the body. TM has saved the lives of dozens of Wilson's disease ...Clues to the evolution of photosynthesis
...use of the microbes' color and their dependence on sulfur compounds to carry out photosynthesis. Biologists ...ic (low-oxygen) layers of water containing reduced sulfur compounds. When TIGR researchers analyzed the microbe's single circular chromosome, they identified ...Los Alamos researcher conducts volcanic voyeurism
...sed increased noticeably relative to the amount of sulfur dioxide gas prior to eruption. The amount of silicon tetrafluoride dramatically increased just after the eruption and then quickly returned to pre-eruption levels hours later. This detection gives the researchers hope that volcanoes really can put o...Research highights from Pacific Northwest National Laboratory
...nmentally friendly system that efficiently removes sulfur odorants, which are added to pipeline natural gas for leak detection - but act as a poison to fuel cells - has been developed by researchers at Pacific Northwest National Laboratory. In addition to being 30 to 50 times smaller than desulfurization...Brookhaven Spotlights: News from the National Synchrotron Light Source
...ed by power plants, factories and cars, comes from sulfur impurities present in fossil fuels that combine wi... oxygen during combustion. To reduce the amount of sulfur dioxide in the air, a team of Brookhaven scientists is designing and testing compounds that take sul...Urbana chemist wins national award for contributions to cleaner fuels
... called metal sulfides — catalysts that take sulfur out of oil and coal, so they dont make as much aci... the more common, such as nickel. They attract the sulfur and transfer it away from the raw fossil fuel to form hydrogen sulfide, a gas. That done, the cataly...Rare fossilized tube feet suggest functional shift through time
...decaying flesh, their waste products combined with sulfur and iron dissolved in the seawater to form pyrite, said Alexander Glass, a doctoral student at the UI. The degradation process coated the animal with a thin veneer of pyrite, also known as fools gold, creating a mineral cast that accurately preserve...Don't be fooled about your oral health: AAP uncovers common misconceptions
...nds of bacteria in the mouth that produce volatile sulfur compounds. If these sulfur compounds build up enough, the result can be clinical bad breath, reports the American Dental Associ...X-ray analysis of shipwreck may help conservators save waterlogged artifacts
...cal reactions turn hydrogen sulfide into elemental sulfur or pyrite, depending on the amount of available ir...edish and Stanford researchers found evidence that sulfur had accumulated within the beams. The presence of many sulfur intermediates indicated stepwise oxida...Scientists awarded patent for coal-purifying bacteria
...ems, including the release of atmosphere-polluting sulfur and nitrogen oxides, and leftover ash containing t...ules to form simpler ones, and concurrently remove sulfur and heavy-metal contaminants. The resulting cleaner coal can be burned or converted to liquid or gas...Nitrogen: Too much of a good thing?
... stigma placed upon other gases such as carbon and sulfur dioxides. As the key regulator of plant growth and other integral ecological processes, nitrogen is of critical importance to ensuring the health and productivity of crops, forests, fisheries, and livestock operations. As is the case with carbon di......endments, which required significant reductions in sulfur emissions. But the device could have a much wider application, Pasic said, as any industry that emits fine air pollutants or trace heavy metals could use it. Experiments on the membrane electrostatic precipitator were conducted on the Ohio Univers...