UCLA molecular biologists uproot the tree of life
...160230 degrees Fahrenheit) and can be found in hot sulfur springs and geothermal ocean vents worldwide. "At least 2 billion years ago, ancestors of these two diverse prokaryotic groups fused their genomes to form the first eukaryote, and in the processes two different branches of the tree of life were fused...Natural mineral locks up carbon dioxide
...ndustry. The silicon dioxide can be used to remove sulfur dioxide from the flue gases, which can subsequentl...ural sorbent for capturing more carbon dioxide and sulfur dioxide," says Maroto-Valer. The researchers have not yet tested the process on a working coal-fire...AGU journal highlights - 29 July 2004
...loss. Theyfound reductions of nearly 90 percent of sulfur dioxide in the air, roughly half thenormal airborne ozone, and approximately 70 percent of light scattered by pollutionin the 24-hour period following the blackout. The researchers also note that smogand haze reductions during the period enhanced the...When sun's too strong, plankton make clouds
...ir, where it reacts with oxygen, to form different sulfur compounds. Sulfur in the DMS sticks together in th...time series that focused on the cycling of organic sulfur from DMS in the ocean. Siegel has also been collecting data of changes in sea surface temperatures o...Plankton may influence climate change says UCSB scientist
...ions. One of these compounds is a volatile organic sulfur gas called dimethyl sulfide or DMS. Scientists had...ere. In the air, DMS breaks down into a variety of sulfur compounds that act as cloud-condensing nuclei, leading to increased cloudiness. With more clouds, le...Seabed secrets in English clay
Fossilized organic molecules of green sulfur bacteria are helping to unlock secrets of what may...dentified the signature organic compounds of green sulfur bacteria using gas chromatographs and mass spectrometers. "Molecules of green sulfur bacter...Biologist's find alters the bacteria family tree
...sm -- they converted inorganic substances, such as sulfur and carbon, into energy to live. This process is ...e when the first substantial amounts of oxygen and sulfur appeared on earth. While she mapped the evolution of several bacteria, Blank believes the dating of ......on: they result in the binding of two iron and two sulfur atoms that form a complex that bridges two thioredoxin protein molecules. This iron-sulfur cluster was shown to be necessary for the new enzyme to form disulfides. Iron-sulfur complexes occur in many enzymes, but never before had such a functional ir...Coal-eating bacteria may improve methane recovery
...rocess. Methane gas, which burns without releasing sulfur contaminants, is becoming increasingly important as a natural gas fuel in the U.S. But the process of recovering methane, which is often trapped within porous, unrecovered or waste coal, produces large amounts of water contaminated with salts, organi...Fe-TAML(R) activators developed at Carnegie Mellon remove recalcitrant sulfur from automotive fuels
NEW YORK--More than 85 percent of recalcitrant sulfur compounds in refined automotive fuels can be easil... alternative to existing methods that rid fuels of sulfur contaminants, which are associated with serious human health problems and contribute to acid rain. T...Drug developed for rare disease may help millions more as treatment for cancer, autoimmune diseases
...owing or spreading." TM is made up of the elements sulfur and molybdenum. These combined elements latch on to copper in the blood and to a protein called albumin. The three-part complex formed by this bonding is then eliminated by the body. For Wilson's patients, this brings high copper levels down to norma...Microbe from depths takes life to hottest known limit
...nuously spew a blackening brew laced with iron and sulfur compounds. While suffocating, crushing, scalding, toxic and downright abysmal by most living standards, the arrangement is not so bad for Strain 121 and its ilk. They are archaea, single-celled microbes similar to, but not quite, bacteria. They of...The stinky smell of success of Ted the Titan: a tale from Chemical & Engineering News
..."my nose as a chemist tells me [the compounds are] sulfur heterocyclic amines because it smells like three dead sheep." A number of plants around the world have evolved using this strange system of attracting flies, rather than bees. These stinkers pull in the flies, which are in a "euphoric, confused state...'Man's best friend' may be even better
...ypersensitive to other irritants such as nitrites, sulfur oxides, airborne particles, and ammonia and co-exposure to air pollutants and allergens may trigger a synergistic response. Researchers have believed that although histamine and amine compounds released by the cells during an allergic reaction contri...UCR scientists modify existing chemical scrubber to environmentally friendly, all-natural filter
...em removes more odorant chemicals, including other sulfur and nitrogen compounds. "We did extensive research in the laboratory prior to and during the field demonstration at OCSD in an attempt to explain why we obtained such a high performance from the biotrickling filter," said Deshusses. The UC Riverside...Membrane separation technology produces myriad applications in numerous industries
...ckish water. Significantly, the mandating of lower sulfur levels in gasoline by the Kyoto Protocol is giving...ch has also yielded other technologies that remove sulfur from gasoline. Gas separation applications and the natural gas, oil, and petrochemical industries ar...Water quality in Adirondack lakes responding to acid rain regulations
... federal regulations that have curbed emissions of sulfur dioxide. But, while the situation may be improving...some improvement." Acid rain generally occurs when sulfur dioxide in the air (mostly from electric utility emissions) mixes with precipitation to form sulfuri...Biomedical engineer constructs illuminating nanoparticles for medical imaging and gene detection
...re labeled with a fluorescent dye at one end and a sulfur atom at the other end. When a nanoparticle probe binds to its target molecule, an energy transfer causes the quencher to be suppressed and the particle to illuminate. Dr. Nie believes the new nanoparticle probes will be more effective than conventio...A new class of catalysts will help boost production, quality of transportation fuels
...ingent federal regulations requiring reductions of sulfur (S) and nitrogen (N) levels in transportation fuel...-based catalysts, resulting in much more efficient sulfur and nitrogen removal." In addition, the new catalysts are physically strong and chemically stable,...Ann Arbor chemist wins national award for extracting sulfur from fuel
...new ways to separate and purify compounds, such as sulfur contaminants in fuel, by trapping them on the surf...e said. Most fuels now contain more than a gram of sulfur per gallon, which contributes to acid rain. New federal standards are coming in 2006, however, to re...