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Researchers study role of natural organic matter in environment
12-11-2006 · EurekAlert!The decomposition of plant, animal and microbial material in soil and water produces a variety of complex organic molecules, collectively called natural organic matter. These compounds play many important roles in the environment.
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Keywords: researchers, study, role, natural, organic, matter, environment, researcher
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- Don't judge a brook by its color -- brown waters are more natural
11-21-2007 · EurekAlert!
Over the last 20 years lakes and streams in remote parts of the UK, southern Scandinavia and eastern North America have been increasingly stained brown by dissolved organic matter. In this week's Nature journal (Nov. 22) an international team, led by researchers from UCL and the US Environmental Protection Agency, demonstrates that the color change is indicative of a return to a more natural, pre-industrial state following a decline in the level of acid rain.
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- Researchers untangle nature of 'regressive evolution' in cavefish
02-15-2007 · EurekAlert!
"Regressive evolution," or the reduction of traits over time, is the result of either natural selection or genetic drift, according to a study on cavefish by researchers at New York University's Department of Biology, the University of California at Berkeley's Department of Integrative Biology, and the Harvard Medical School. Previously, scientists could not determine which forces contributed to regressive evolution in cave-adapted species, and many doubt the role of natural selection in this process.
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- Monitoring poisons in the environment -- a woolly matter
03-30-2007 · EurekAlert!
Heavy metals are present in variable amounts in the natural environment in the UK. Dr. Jennifer Sneddon from Liverpool John Moores University will present the results of a pilot study assessing the use of upland sheep wool as a bio-monitoring device for natural levels of heavy metals in the Lake District and Wales.
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- Smithsonian researcher probes Hope Diamond's fiery red glow
01-08-2008 · EurekAlert!
A study released in the January 2008 edition of the journal Geology proves that a blue diamond's rare appeal goes far beyond its beauty. The study was conducted by Jeffrey Post, curator of the National Gem Collection and mineralogist, at the Smithsonian's National Museum of Natural History. Post and six other researchers probed the mysterious phosphorescence of the Hope Diamond and other natural blue diamonds and discovered a way to "fingerprint" individual blue diamonds.
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- Study finds role of mid-brain in integrating heart and respiratory response to exercise
04-29-2007 · EurekAlert!
Oxford University researchers recently examined several deep brain nuclei during exercise and have concluded that the periaqueductal grey area (PAG), the small-celled gray matter adjoining or surrounding the cerebral aqueduct and the third ventricle in the midbrain, contains the greatest number of neural changes in connection with anticipation of exercise. The findings provide direct evidence implicating the PAG as a key area of the brain's circuitry's affecting cardiorespiratory response to exercise.
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- 'Junk' DNA now looks like powerful regulator, Stanford researcher finds
04-23-2007 · EurekAlert!
Large swaths of garbled human DNA once dismissed as junk appear to contain some valuable sections, according to a new study by researchers at the Stanford University School of Medicine and the University of California-Santa Cruz. The scientists propose that this redeemed DNA plays a role in controlling when genes turn on and off.
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- Environment plays key role in children's readiness for school
11-15-2007 · EurekAlert!
Researchers conducting one of the first studies to consider both environmental and genetic influences on school readiness found that environment is the most important factor in individual differences in children's readiness for school. The study involved 420 pairs of 5-year old twins whose achievement was rated by teachers after two years. The findings provide further incentive for continued interventions that address school readiness in at-risk children.
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- HYMS researchers focus on human evolution
12-21-2006 · EurekAlert!
A Hull York Medical School researcher has played a key role in a study which has cast important new light on Neanderthals.
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- ASU researcher finds belief about neighbor's conservation is stealthily influential
02-18-2007 · EurekAlert!
If everyone jumped off a bridge, would you? Probably not, but according to a study by Arizona State University researchers, peer influence plays a greater role in people's behavior than is generally acknowledged. The study, which is being presented by ASU Regents' Professor of Psychology Robert Cialdini on Feb. 18 at the annual meeting of the American Association for the Advancement of Science, suggests that peer influence is an under-recognized factor in energy conservation.
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- The closest look ever at native human tissue
12-05-2007 · EurekAlert!
Seeing proteins in their natural environment and interactions inside cells has been a long-standing goal. Using an advanced microscopy technique called cryo-electron tomography, researchers from the European Molecular Biology Laboratory have visualized proteins responsible for cell-cell contacts for the first time. In this week's issue of Nature they publish the first 3-D image of human skin at molecular resolution and reveal the molecular Velcro-like organization that interlinks cells.
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