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Study Casts Doubt on Climate Benefit of Biofuels from Corn Residue

Published: April 21, 2014.
Released by University of Nebraska-Lincoln  


Lincoln, Neb., April 20, 2014 -- Using corn crop residue to make ethanol and other biofuels reduces soil carbon and can generate more greenhouse gases than gasoline, according to a study published today in the journal Nature Climate Change. The findings by a University of Nebraska-Lincoln team of researchers cast doubt on whether corn residue can be used to meet federal mandates to ramp up ethanol production and reduce greenhouse gas emissions.


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technology
Conductive Concrete Could Keep Roads Safer in Winter Weather
Lincoln, Neb., Jan. 22, 2016 -- A 200-square-foot slab of seemingly ordinary concrete sits just outside the Peter Kiewit Institute as snowflakes begin parachuting toward Omaha on a frigid afternoon in late December. The snow accumulates on the grass surrounding the slab and initially clings to the concrete, too. But as the minutes pass and the snow begins melting from only its surface, the slab reveals its secret: Like razors, stoves and guitars before it, this concrete has gone electric.

technology
X-ray Vision? Laser-derived X-ray Method Finds Hidden Nuclear Materials
Lincoln, Neb., Dec. 21, 2015 -- Physicists at the Diocles Extreme Light Laboratory at the University of Nebraska-Lincoln have demonstrated that their unconventional laser-based X-ray machine could provide a new defense against nuclear terrorism. In proof-of-principle experiments, the UNL scientists used the laser-driven X-ray source to produce an image of a uranium disk no bigger than a stack of three nickels and hidden between 3-inch steel panels.

medicine
Children Who Take ADHD Medicines Have Trouble Sleeping, New Study Shows
Lincoln, Neb., Nov. 23, 2015 -- Stimulant medications for attention-deficit/hyperactivity disorder (ADHD) cause sleep problems among the children who take them, a new study from the University of Nebraska-Lincoln concludes. The study addresses decades of conflicting opinions and evidence about the medications' effect on sleep.

biology
New Study: Algae Virus Can Jump to Mammalian Cells
Lincoln, Neb., Oct. 21, 2015 -- New research led by the University of Nebraska-Lincoln has provided the first direct evidence that an algae-infecting virus can invade and potentially replicate within some mammalian cells.

nature
Africa Could Be the Answer to Delaying 'Peak Grain'
Lincoln, Nebraska, Sept. 28, 2015 -- Agricultural yields could more than triple in a number of African countries, suggesting that tremendous improvements in food security are possible, according to new findings by the Global Yield Gap and Water Productivity Atlas.

chemistry
Physicists Defy Conventional Wisdom to Identify Ferroelectric Material
Lincoln, Neb., Sept. 17, 2015 - A team of physicists has defied conventional wisdom by inducing stable ferroelectricity in a sheet of strontium titanate only a few nanometers thick. The discovery could open new pathways to find new materials for nanotechnology devices, said Alexei Gruverman, a University of Nebraska-Lincoln physics and astronomy professor who worked on the research.

nature
Study: 2 Major US Aquifers Contaminated by Natural Uranium
Nearly 2 million people throughout the Great Plains and California above aquifer sites contaminated with natural uranium that is mobilized by human-contributed nitrate, according to a study from the University of Nebraska-Lincoln. Data from roughly 275,000 groundwater samples in the High Plains and Central Valley aquifers show that many Americans live less than two-thirds of a mile from wells that often far exceed the uranium guideline set by the Environmental Protection Agency.

nature
Study Is First to Quantify Global Population Growth Compared to Energy Use
Lincoln, Neb., July 24th, 2015 -- If you've lived between the year 1560 and the present day, more power to you. Literally. That's one of several conclusions reached by University of Nebraska-Lincoln ecologist John DeLong, who has co-authored the first study to quantify the relationship between human population growth and energy use on an international scale.

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