
Almost 25 percent of the world’s malnourished population lives in sub-Saharan Africa (SSA), where more than 300 million people depend on maize (corn) for much of their diet. The most widely-produced crop by harvested area in SSA, maize is also highly sensitive to drought. Because maize in this region is grown largely on rainfed rather than irrigated land, any future changes in precipitation patterns due to climate change could significantly impact crop yields. Assessing the likely magnitude and locations of such yield changes in the coming decades will be critical for decision makers seeking to help their nations and regions adapt to climate change and minimize threats to food security and to rural economies that are heavily dependent on agriculture.
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As charge carriers, electrons and ions play the leading role in electrochemical energy storage devices and converters such as batteries and fuel cells. Proton conductivity is crucial for the latter; protons, i.e. positively charged hydrogen ions, are formed from hydrogen, which is used to power the fuel cell. Empa physicist Artur Braun and Qianli Chen, a doctoral student at ETH Zurich, conducted neutron scattering experiments on the Swiss Spallation Neutron Source (SINQ) at the Paul Scherrer Institute (PSI) that document the mobility of protons in the crystal lattice. In the process, they observed that the proton movements in ceramic fuel cells obey far more complex laws than previously assumed: The movement of the protons takes place according to the so-called polaron model, as the researchers recently reported in the renowned journal Nature Communications.
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Today Scientists have called for action. The scientific journal Nature ecology & evolution have published a joint statement from scientists at Center for Macroecology, Evolution and Climate, University of Copenhagen and North Carolina State University. The scientists call attention to a serious lack of data on the worldwide distribution of disease-causing organisms. Without this knowledge, predicting where and when the next disease outbreak will emerge is hardly possible. Macroecologists hold the expertise to create the needed data network and close the knowledge gaps.
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Federal scientists forecast that this summer’s Gulf of Mexico dead zone – an area of low to no oxygen that can kill fish and other marine life – will be approximately 8,185 square miles, or about the size of New Jersey.
This would be the third largest dead zone recorded since monitoring began 32 years ago – the average Gulf dead zone since then has been 5,309 square miles.
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Fathers-to-be, take note: You may be more useful in the labor and delivery room than you realize.
That’s one takeaway from a study released last week that found that when an empathetic partner holds the hand of a woman in pain, their heart and respiratory rates sync and her pain dissipates.
“The more empathic the partner and the stronger the analgesic effect, the higher the synchronization between the two when they are touching,” said lead author Pavel Goldstein, a postdoctoral pain researcher in the Cognitive and Affective Neuroscience Lab at CU Boulder.
The study of 22 couples, published in the journal Scientific Reports last week, is the latest in a growing body of research on “interpersonal synchronization,” the phenomenon in which individuals begin to physiologically mirror the people they’re with.
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Supercomputers help design automobiles and aircraft, create new medical drugs and discover the mysteries of the universe. Now, in a column for the Tri-City Herald, the director of Pacific Northwest National Laboratory, Steve Ashby, introduces a new national collaboration to take supercomputers to the next level of performance.
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