Freshwater Sponges May Pose Threat To Zebra Mussels
...ming suggests a relationship." Changes in water chemistry due to waste by zebra mussels or increases in water clarity, which could also be caused by zebra mussels, may have made the water more hospitable, Kelch said. The researchers studied the growth of freshwater sponges on the artificial reef in Lorai...... Fred W. McLafferty, Cornell professor emeritus of chemistry who led the work. Their accuracy provides less than 0.01 percent error. "With this, you can also measure masses of individual pieces of a molecule for further characterization." The researchers -- McLafferty; Gary A. Valaskovic, a postdoctoral asso...NCAR Scientists Trek To Africa For Biosphere-Atmosphere Chemistry Study
...ant sampling to date of biospheric and atmospheric chemistry in the tropical rainforest will culminate in Novem... of the instruments for monitoring weather and air chemistry will be maintained by the European and African collaborators for longer-term EXPRESSO research. EXPR...Scientists Trek to Africa for Biosphere-Atmosphere Chemistry Study
...ant sampling to date of biospheric and atmospheric chemistry in tropical rainforests will culminate in December... the world that play an influential role in global chemistry cycles. EXPRESSO will help define the degree of influence central Africa has on these cycles." ...Fast Measurement Technique Reveals Early Steps In Protein Folding
... nanoseconds," saidMartin Gruebele, a professor of chemistry and a researcher at the BeckmanInstitute for Advanced Science and Technology. "We are able to witnessthe early steps in protein folding that are being missed by other techniques." Understanding how proteins fold is a necessary first step toward the ...New Sensor Provides First Instant Test For Toxic E. coli Organism
...le. Stevens, who is also an assistant professor of chemistry at the University of California at Berkeley, developed the sensors in concert with Berkeley postdoc Quan Cheng. The device is a modification of one originally described in the journal Science by former Lab scientist Mark Bednarski and Lab materials...Researchers Corral Millions Of Microscopic Membranes
...e of the journal Science , co-authored by Groves, chemistry Professor Steven G. Boxer and Ginzton Laboratory...ch that was completed in 1986 and 1987 by Stanford chemistry Professor Harden McConnell. He and his students figured out how to make two-dimensional membranes &#...Stronger Evidence That Global Climate Change Can Reduce The Variety Of Life
...y with global climate changeas determined from the chemistry of the shells, the authors were able toestablish a statistical correspondence between diversity and climatechanges that were caused by cycles of the Earth's orbit relative to thesun. The astronomical or orbital theory of climate holds that changes i...Ten Years of Progress For Superfund Basic Research Program
...alth in theCollege of Medicine, the departments of chemistry and biologicalsciences in the College of Arts and Sciences, and the departmentof civil and environmental engineering in the College ofEngineering. UC's funding was recently extended through March ofthe year 2000....Eating After Exertion May Be A Key To Speeding Body's Recovery
...of glucose and insulin, allowingfor a stable blood chemistry that promoted the efficient use of free fattyacids, Layman said. These effects, he added, are probably derived from thesoluble fiber in oats. In the post-exercise study, funded by the National Institutes of Health,rats did exhausting running exercis...Method Eases Making Amino Acids Critical In Medicinal Chemistry
...d unnatural amino acids to medicinaland biological chemistry has made these compounds a focal point for chemica...mustbe built into a synthesized biomolecule. "Our chemistry begins with a molecule that is superimposable onits mirror image, and converts it into an aryl amino...Munching Microbes Make A Meal Out Of Toxic Substances
... the soil. "There's some interesting environmental chemistry happening here," he says. "The pentachlorophenol is not very soluble in water, and there's not much water in the soil, so sometimes the chemical is bound to the soil, making it unavailable to the microorganisms. "We know we can get these organisms to...Bacterium gobbles up chlorinated pollutants
...some of the most irreducible compounds that modern chemistry has devised. "It's as if this bug were born to dechlorinate," Zinder said. "Then what was it doing before we invented chlorinated ethylenes?" Gossett asked. "It's true, there are some natural levels (of chlorinated ethylenes) in nature, but not in ...Oaks' Defenses Help Gypsy Moth Caterpillar Fend Off Virus
...ibit the action of PPO." Further research into the chemistry of the gypsy moth caterpillar gut and theinteraction of caterpillar, oak tree and virus, might eventually lead to acontrol method....Female Fireflies Lure Males For Defense Chemical
...s, were Michael A. Goetz, a postdoctoral fellow in chemistry at the time of the research; David E. Hill, postdoctoral fellow in neurobiology and behavior at the time; Scott R. Smedley, postdoctoral fellow in neurobiology and behavior; and Jerrold Meinwald, the Goldwin Smith Professor of Chemistry at Cornell...Basin Traps Air Pollution In Mexico City: International Study Has Implications For U.S. Cities
...project. "The close coupling ofmeteorological and chemistry measurements and analysis is necessary tounderstand how the surrounding terrain affects the transport and diffusion ofpollutants." The study may help explain how fine particles form in the atmosphere.These particles are potentially the most h...New Description Of Protein May Be Basis For Regulating Cholesterol
... among all three proteins," said Cane,professor of chemistry and biochemistry. "This presents quite a rich view,indicating that hundreds of these compounds have similar origins." Cane and colleagues are interested in how the protein recognizes, processesand transforms the natural substrate into other products...New, Environmentally Friendly Technique For Separating Liquids Invented At UNC-CH
...r. Joseph M. DeSimone, Mary Ann Smith professor of chemistry atUNC-CH. "Very often these processes need to use organic solvents which are notgood for our environment. That's because the solvents are either toxic orflammable or both, and they are expensive. "What we invented was a process that allows ca...