The aquaculture industry is taking notice of U.S. Department of Agriculture (USDA) research that gives the precise levels of dissolved oxygen needed to keep pond-raised catfish alive and growing.
Ecology
Jan 27, 2014
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In the course of the last few decades, the oxygen concentration levels in aquifers in the Swiss Plateau have dropped irregularly. Results of the National Research Programme "Sustainable Water Management" (NRP 61) suggest ...
Environment
Dec 3, 2013
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An international team of researchers led by Ralf Tappert, University of Innsbruck, reconstructed the composition of the Earth's atmosphere of the last 220 million years by analyzing modern and fossil plant resins. The results ...
Earth Sciences
Nov 18, 2013
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Although long thought to be devoid of life, the bottom of the deep ocean is now known to harbor entire ecosystems teeming with microbes. Scientists have recently documented that oxygen is disappearing from seawater circulating ...
Earth Sciences
Sep 27, 2013
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Ethnic segregation in nations straddling the world's steepest terrains may be reinforced by the biological tolerance different peoples have to altitude, according to one of the first studies to examine the effect of elevation ...
Social Sciences
Jul 1, 2013
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As ice sheets melted during the deglaciation of the last ice age and global oceans warmed, oceanic oxygen levels decreased and "denitrification" accelerated by 30 to 120 percent, a new international study shows, creating ...
Earth Sciences
Jun 3, 2013
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People tend to think of ozone as something in the upper atmosphere that protects the earth's surface from UV radiation. At the ground level, however, ozone is a pollutant that damages crops, particularly soybean.
Earth Sciences
Oct 30, 2012
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A team led by Prof. Masatomo Yashima from the Graduate School of Science and Engineering, Tokyo Institute of Technology and Prof. Tatsumi Ishihara from the International Institute for Carbon-Neutral Energy Research and the ...
Materials Science
Oct 30, 2012
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(Phys.org) -- It's almost an evil twin story: a protein that steals electrons from iron in one microbe looks a lot like one that adds electrons in another microbe, according to scientists at Pacific Northwest National Laboratory ...
Biochemistry
Aug 20, 2012
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How single cell organisms like bacteria manage to react to their environment is not yet completely understood. Together with colleagues from Japan, Dr. Samir El-Mashtoly from the RUB Department of Biophysics, led by Prof. ...
Cell & Microbiology
Jun 25, 2012
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