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The premier online source for science news since 1996. A service of the American Association for the Advancement of Science.
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ORNL researchers design novel method for energy-efficient deep neural networks

Mar 14 2018 - 00:03
Researchers at DOE's Oak Ridge National Laboratory (ORNL) have developed a novel method for more efficiently training large numbers of networks capable of solving complex science problems. Specifically, Mohammed Alawad, Hong-Jun Yoon, and Gina Tourassi of ORNL's Computer Science and Engineering Division, have demonstrated that by converting deep learning neural networks (DNNs) to 'deep spiking' neural networks (DSNNs) they can improve the efficiency of network design and training.
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Educational success curbs effects of child abuse, neglect

Mar 14 2018 - 00:03
The emotional and sexual abuse that some children endure can lead them to commit crimes later in life.
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A lesson from Darwin

Mar 14 2018 - 00:03
When British naturalist Charles Darwin traveled to the Galapagos Islands in 1835, he took notice of the giant kelp forests ringing the islands. He believed that if those forests were destroyed, a significant number of species would be lost. These underwater ecosystems, Darwin believed, could be even more important than forests on land.
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Study reveals vision's role in vowel perception

Mar 14 2018 - 00:03
In a study based at Brown University, researchers found that the motion and configuration of a speaker's lips are key components of the information people gather when distinguishing vowels in speech.
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Using implementation science to improve cervical cancer prevention in sub-Saharan Africa

Mar 14 2018 - 00:03
While cervical cancer -- one of the most common cancers in women -- has significantly decreased in the United States, it is still the second most common cancer in women who live in less developed countries, according to the World Health Organization. Women in sub-Saharan Africa (SSA) have the largest age-standardized incidence and mortality rates of this potentially preventable and non-communicable disease due to the difficulty in implementing prevention, screening, and treatment programs.
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Research gets closer to producing revolutionary battery to power renewable energy industry

Mar 14 2018 - 00:03
Trung Van Nguyen has headed research that today verges on development of a commercial hydrogen-bromine flow battery, an advanced industrial-scale battery design engineers have strived to develop since the 1960s.
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Scientists observe nanowires as they grow

Mar 14 2018 - 00:03
Scientists of Karlsruhe Institute of Technology (KIT) have succeeded in monitoring the growth of minute gallium arsenide wires. Their findings do not only provide for a better understanding of growth, they also enable approaches to customizing nanowires with special properties for certain applications in the future. Gallium arsenide is a semiconductor material widely used in infrared remote controls, high-frequency technology for mobile phones, conversion of electric signals into light in glass-fiber cables, and solar cells for space technology.
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NASA finds towering storms in Tropical Cyclone Linda

Mar 14 2018 - 00:03
Towering thunderstorms were found southeast of Tropical Cyclone Linda's center when the Global Precipitation Measurement mission or GPM core satellite passed overhead and analyzed the storm.
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Cells stressed out? Make mitochondria longer

Mar 14 2018 - 00:03
TSRI scientists investigate a phenomenon that may guard against disease as we age.
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Chemists use abundant, low-cost and non-toxic elements to synthesize semiconductors

Mar 14 2018 - 00:03
Javier Vela of Iowa State University and the Ames Laboratory has worked with two of his graduate students to synthesize a new material for semiconductors. The chemists think the material will work well in solar cells, but without the toxicity, scarcity or costs of other semiconductors. They report their discovery in a paper recently published online by the Journal of the American Chemical Society.
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Researchers tap problematic e-waste surplus to recover high-quality polymers

Mar 14 2018 - 00:03
Mixed-plastic electronics waste could be a valuable source of reusable polymers, a new study led by Illinois Sustainability Technology Center scientists suggests. The team has developed the first energy-efficient and environmentally friendly process that separates mixed polymers so that they can be recycled into new, high-quality plastic products.
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An eco-friendly alternative to recycling e-waste

Mar 14 2018 - 00:03
As consumers toss aside old cell phones, tablets and laptops to keep up with the latest technology, landfills are becoming full of the old devices. To address this buildup, scientists are attempting to recover valuable plastics from this electronic waste, or 'e-waste.' Now, one group reports in ACS Sustainable Chemistry & Engineering that they have found an eco-friendly alternative to current methods.
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ADHD drugs increase brain glutamate, predict positive emotion in healthy people

Mar 14 2018 - 00:03
The findings by Brown University scientists offer clues about how misused drugs affect healthy brains and hint at an undiscovered link between glutamate and mood.
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Researchers identify common biological features of different types of asthma

Mar 14 2018 - 00:03
Research can help to identify people with mild asthma from those with moderate or severe asthma.
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Scenario 2050: Lithium and Cobalt might not suffice

Mar 14 2018 - 00:03
Lithium and cobalt are fundamental components of present lithium-ion batteries. Analysis by researchers at the Helmholtz Institute Ulm (HIU) of the Karlsruhe Institute of Technology (KIT) shows that the availability of both elements could become seriously critical. Cobalt-free battery technologies, including post-lithium technologies based on non-critical elements such as sodium, but also magnesium, zinc, calcium and aluminium, represent possibilities to avoid this criticality in the long term. These results are presented in Nature Reviews Materials.
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A brewer's tale of proteins and beer

Mar 14 2018 - 00:03
The transformation of barley grains into beer is an old story, typically starring water, yeast and hops. Now, in a report in the Journal of Proteome Research, scientists are highlighting another character in this tale: proteins. The results could someday lead to a better, tastier brew.
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A catalyst with self-defense against oxygen

Mar 14 2018 - 00:03
Even traces of oxygen can deactivate molecular catalyst that are incorporated in fuel cells. Consequently, this drawback hampered the use of such catalyst based on abundant metals, which mimic the active center of natural biocatalyst, in technological relevant applications. Now, a team of researchers from the Ruhr-Universität Bochum (RUB), the Max-Planck-Institute for Energy Conversion in Mülheim and the from the Pacific Northwest National Laboratories in Washington, USA, was able to equip such a catalyst
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Eastern Mediterranean summer will be two months longer by end of 21st century

Mar 14 2018 - 00:03
The eastern Mediterranean is experiencing monumental climate changes poised to significantly affect regional ecosystems and human health. According to a new Tel Aviv University study, these changes will drastically alter the duration of summer and winter in the region by the end of this century.
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Growing need for urban forests as urban land expands

Mar 14 2018 - 00:03
New research projecting urban land growth and updating urban forest values suggests that urbanization and urban forests are likely to be one the most important forest influences and influential forests of the 21st Century.
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Many patients show signs of chronic kidney disease before diabetes diagnosis

Mar 14 2018 - 00:03
Many patients who will later be diagnosed with diabetes show signs of chronic kidney disease even before their diabetes diagnosis, according to a study by Veterans Affairs researchers and colleagues in Tennessee. The researchers looked at data on more than 36,000 veterans who were diagnosed with diabetes between 2003 and 2013.
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