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Argentina's MERVAL index closed down 1.34% to 2.199 million points.AI can solve partial differential equations thousands of times faster than before, and partial differential equations play an important role in engineering and science. In a recent study, scientists from Johns Hopkins University in the United States have developed a new artificial intelligence (AI) model called "Differential Mapping Operator Learning" (DIMON), which can solve complex partial differential equations on personal computers, thousands of times faster than before, and is expected to "show its talents" in the fields of aerospace, automobiles and medicine. Related papers were published in the journal Nature Computational Science published on the 9th. (Science and Technology Daily)US Treasury Secretary Yellen: I also expressed my concern about fiscal responsibility. We need to cut the deficit. I hope that Congress can try to pay for any extension of Trump's personal tax cuts passed in 2017.

A new generation of quantum chips has achieved a breakthrough in error correction capability. According to a paper published in Nature magazine on the 10th, Google's latest generation of quantum chips has achieved a breakthrough in error correction capability, that is, the error is suppressed below a critical threshold. This quantum error correction function is considered as a necessary condition to realize the practical application of quantum computing in the future. After the performance of the chip is expanded, it may be able to promote the operation requirements of large-scale fault-tolerant quantum computing. (Science and Technology Daily)According to medical personnel, at least seven Palestinians were killed and many others were injured in the Nu Sillat refugee camp in central Gaza as a result of Israeli air strikes.The Houthi armed forces in Yemen claimed to have attacked two American destroyers and three frigates in the Gulf of Aden. The Houthi armed forces in Yemen issued a statement announcing military operations against a series of targets, including attacking "two American destroyers and three frigates" in the Gulf of Aden, and attacking regional targets such as Jaffa in Israel.

An attack on a minibus in Haiti caused 8 deaths and 10 injuries. On December 10, local time, Haitian police released a report saying that a minibus was attacked by gangs in Deluge, Artibonite province on the 9 th, causing 8 deaths and 10 injuries, including 8 serious injuries. (CCTV)The murder suspect of the CEO of the insurance giant resisted "extradition" to new york, and the protracted court offensive and defensive war was started. The suspect Luigi Mangione, who was shot dead by Brian Thompson, an executive of UnitedHealth Group Inc, in Manhattan, new york, USA, objected to extraditing himself to new york to face second-degree murder's charges, thus opening the curtain for a judicial procedure that may be a year without a month. On Tuesday (December 10th), at a court hearing in Pennsylvania, the defendant's lawyer said that he would fight against any request to transfer him to new york. "My client is not giving up the extradition hearing here today," said Thomas M. Dickey, Mangione's attorney.Chile's national copper company said that copper production reached 127,900 tons in October.