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Attention-deficit/hyperactivity disorder (ADHD) might contribute to obesity by reducing physical activity—a relationship that can also be mediated by the features of the urban environment in which a person lives.

That is the conclusion of a new study published in PLOS Complex Systems by Tian Gan, Rayan Succar, and Maurizio Porfiri of the Tandon School of Engineering at New York University, U.S., and Simone Macrì of the Italian National Institute of Health, Italy.

For years, scientists have suspected that impulsivity—including conditions like ADHD—may increase the risk of , but much of the evidence has focused on individual traits and behaviors, placing limited attention toward environmental and .

🤖🦾💰A bot for only $35K! Next year $18K?

“” We’ve reached a tipping point where the technology and cost curves have intersected,” explains Dr. Li Wei, robotics analyst at Beijing Technological Institute. ” A humanoid robot that cost $100,000 last year now sells for under $35,000, with prices expected to halve again by 2026.”


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Whether bismuth is part of a class of materials highly suitable for quantum computing and spintronics was a long‑standing issue. Kobe University research has now revealed that the true nature of bismuth was masked by its surface, and in doing so uncovered a new phenomenon relevant to all such materials.

The team have published their results in a letter in the journal Physical Review B.

There is a class of materials that are insulators in their bulk, but robustly conductive at their surface. As this conductivity does not suffer from defects or impurities, such “topological materials,” as they are called, are expected to be highly suitable for use in quantum computers, spintronics and other advanced electronic applications.

The vision of robotic materials—cohesive collectives of robotic units that can arrange into virtually any form with any physical properties—has long intrigued both science and fiction. Yet, this vision requires a fundamental physical challenge to be…