With the rapid advancement of technology, the manipulation of electromagnetic waves and information has become key to the modern lifestyle. This has called for the development of intelligent metasurfaces – those that do not require manual intervention to control wave-information-matter interaction. To this end, a group of researchers tried to study the development of intelligent
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The most comprehensive genetic assessment to date of the vaquita, the world’s rarest marine mammal, is offering a glimmer of hope that this small tropical porpoise native to Mexico’s Gulf of California may avoid extinction despite its population dwindling to about 10. Researchers said on Thursday genome data from 20 vaquitas showed that while the
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Ukraine’s president Volodymyr Zelenskyy has described the situation in Mariupol as “hell”, while Ukrainian fighters prepare for what could be their final stand against Russia. It is estimated that around 2,000 Ukrainian fighters are in tunnels underneath the Azovstal steel plant. They are the last pocket of resistance in a city almost completely destroyed by
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In this article DASH Tony Xu, co-founder and chief executive officer of DoorDash Inc. David Paul Morris | Bloomberg | Getty Images DoorDash stock rose over 10% in extended trading after the company reported 35% revenue growth in the first quarter, suggesting that the company’s core business of delivering takeout food can still grow even
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