Using DNA origami, researchers have built a diamond lattice with a periodicity of hundreds of nanometers -- a new approach for manufacturing semiconductors for visible light.

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What features does a robotic guide dog need? Ask the blind, say researchers. A new study identifies how to develop robot guide dogs with insights from guide dog users and trainers.

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Perfluoroalkyl and polyfluoroalkyl substances, also known as PFAS or 'forever chemicals,' have become persistent pollutants in the air, water and soil. Because they are so stable, they can be transported throughout the water cycle, making their way into drinking water sources and precipitation. Precipitation introduces similar amounts of PFAS into each of the Great Lakes; however, the lakes eliminate the chemicals at different rates.

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Copper cannot be mined quickly enough to keep up with current U.S. policy guidelines to transition the country's electricity and vehicle infrastructure to renewable energy, according to a new study.

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Semiconductors are the foundation of all modern electronics. Now, researchers have developed a new method where organic semiconductors can become more conductive with the help of air as a dopant. The study is a significant step towards future cheap and sustainable organic semiconductors.

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Researchers present a novel framework that uses image-mining techniques and machine learning algorithms to identify flaws in counterfeit coins. The researchers' framework uses fuzzy association rules mining to find patterns that are similar but 'fuzzy,' i.e., not clear enough to be exact copies. However, the framework will eventually arrive at a certain range of results where positive matches be confidently identified.to extract frequent patterns from the images. These patterns capture relationships among the blobs' attributes, such as color, texture, shape and size. The patterns help researchers to better understand the images and tell whether a coin is real or fake.

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While intergroup interaction is a prerequisite for initiating peace and stability, there is the risk of further escalation from direct interactions. A shortage of an impartial electronic contact session may cause the process to become destabilized. Interactive AI programs may help reduce prejudice and anxiety among historically divided ethnic groups in Afghanistan during online interactions.

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