Chemists Discover New Processes In Fuel-Cleaning Catalysis
...the most widelyused process for removing polluting sulfur compounds from crude oil. Thediscovery could help...bdenum disulfidemore effective at bonding with the sulfur in thiophenes, and they believed thatthese reactions could occur only on the edges of the thin catal...NCAR Team Tags 'Imported' Pollutants Over The Pacific Northwest
...l pollution and acid rain. "One important way that sulfur moves in the atmosphere is throughtransport by the... been developing an integratedmodel of climate and sulfur chemistry. The model includes the emissionof natural and industrial sulfur into the earth's atmosphe...Garlic Perfumes Poultry Houses
...ns," Birrenkott said. "We think it mightreduce the sulfur content of the eggs." While the chickens adapted to eating garlic right away, hogs in acompanion test were more reluctant to accept the new feed. "Hogs have a very sensitive sense of smell. That's why they're usedin France to find tru...Chopping And Cooking Affect Garlic's Anti-Cancer Activity
...rt a reaction that produces chemicals called allyl sulfur compounds thatpossess anti-cancer properties. "The allyl sulfur compounds produced from the enzyme's reaction arecritical to garlic's anti-cancer effects," Song not...Long Lava Flows May Have Taken Years, Causing Global Cooling And Extinctions
... The duration of a lava flow affects the amount of sulfur dioxidereleased into the atmosphere and therefore the degree of global cooling itcauses. This cooling effect was noted following the relatively small eruption ofthe Laki volcano in Iceland in 1783. Therefore, the study of both active lavaflows and an...Clean Air Act Reduces Acid Rain In Eastern U.S.
...iversity Park, Pa. Acid rain is caused by sulfur dioxide and nitrogen oxides produced whenfuels burn. The source of most sulfur dioxide is high-sulfur coal burned inpower plants. Controlling this source of sulfur dioxide product...Rock-Eating Microbes Could Signify Life On Mars
...ingmicronutrients in the rock - iron, potassium or sulfur - which they need insmall amounts. "They may also be dissolving the rock to get a certain chemical reactionto provide them energy." The researchers believe the microbes were originally carried beneath theocean floor in seawater, seepi...University Of Cincinnati Biologists Find Evidence For Unusual DNA Repair InArchaea
...ows optimally around80 degrees Celsius and in hot, sulfur springs with a pH of about 3. They know very littl... much more likely to damageDNA. "They're oxidizing sulfur to produce sulfuric acid. That's how they generate energy.So, they're in this acidic environment and...Interdisciplinary Method Offers New Way To Study Ribozymes
...here coordinationof metal ions to the non-bridging sulfur at the cleavage site," Lusaid. "More importantly, our results further show that this directcoordination is responsible for mercury's ability to support phosphorothioateribozyme activity." The phosphorothioate approach has been commonly employed in ...Environmental Technology Breakthroughs Forecast -- Year 2008
...veloping aprocess that uses microbes to break down sulfur in waste tire rubber, makingtires recyclable; working with other national laboratories and automakers todevelop a cleaner, more efficient automobile; designing a 190-liter-per-second(3,000 gallon-per-minute) jet mixing pump to stabilize hazardous was...Rapid Progress Reported On New Class Of Anti-Cancer Drugs
...n the FTase enzyme interacts catalyticallywith the sulfur in the Ras protein in the process of joining the reactivefarnesyl di-phosphate molecule with the Ras protein. In experiments in whichthey substituted for zinc in the enzyme other metals that more tightly bindsulfur, the biochemists were able to "free...New Materials Remove Corrosive Gas In Coal-Gasification Process
...ons like carbon dioxide andacid-gas emissions like sulfur dioxide and the nitrogen oxides can be reduced.To ... into commercially valuable products,such as solid sulfur and sulfuric acid." Cal presented the team's findings at the September national meeting ofthe Ameri...Basin Traps Air Pollution In Mexico City: International Study Has Implications For U.S. Cities
... Historically, low visibility has correlated with sulfur content offuels. Wind directions varied significantly with elevation and location in thevalley, producing pollutant transport patterns that are difficult to modelaccurately. Detailed analysis of the data, creation of the models and publicat......lants also showed that they were hypersensitive to sulfur dioxide and ultraviolet B radiation. The plants that did not lack vitamin C stood firm against those environmental stresses, much like humans stand up well against external stresses when they consume vitamin C. Last believes this research shows tha...Researchers Use Hydrated Lime To Reduce Toxic Selenium Emissions
...ingplants. The lime particles capture selenium and sulfur dioxide.As the flue gas moves upward, an electrost...s been studied forseveral years as a way to remove sulfur dioxide from flue gas.But this is the first time studies have shown that hydrated limechemically rem...