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Scientists observed semi-Dirac fermion for the first time, and scientists from Pennsylvania State University and Columbia University joined hands to observe a special kind of quasi-particle-semi-Dirac fermion for the first time. Such quasi-particles have mass when moving in one direction, but lose mass when moving in the other direction. The researchers said that in-depth research on these quasi-particles is expected to promote the development of next-generation batteries, sensors and other technologies. Related papers were published in the new issue of Physical Review X.Trump's nominated director of NASA said that his future mission of cooperating with SpaceX would be put on hold. On December 11th, local time, jared Isakman, the director of NASA nominated by US President-elect Trump, said that his future private astronaut mission planned to cooperate with SpaceX of elon musk might be put on hold. Isaac Mann said that the future of the Polaris Project is still a "question mark".Merger and acquisition, restructuring and opening up a new bureau, market value management has achieved results. Shanghai is a state-owned state-owned enterprise in the big game of capital market, and Shanghai is a major town of state-owned state-owned enterprises. The market value of state-owned listed companies in Shanghai has exceeded 2.7 trillion yuan, which is a powerful state-owned company in the capital market. Since the beginning of this year, Shanghai state-owned listed companies have taken the initiative to take the lead, tried first, actively reformed and innovated, decisively settled in the big chess game of the capital market, opened a new game in mergers and acquisitions, and managed the market value quite effectively, handing over a sample answer sheet. (SSE)

Merger and acquisition, restructuring and opening up a new bureau, market value management has achieved results. Shanghai is a state-owned state-owned enterprise in the big game of capital market, and Shanghai is a major town of state-owned state-owned enterprises. The market value of state-owned listed companies in Shanghai has exceeded 2.7 trillion yuan, which is a powerful state-owned company in the capital market. Since the beginning of this year, Shanghai state-owned listed companies have taken the initiative to take the lead, tried first, actively reformed and innovated, decisively settled in the big chess game of the capital market, opened a new game in mergers and acquisitions, and managed the market value quite effectively, handing over a sample answer sheet. (SSE)The position ETF--iShares Silver Trust, the world's largest silver ETF, decreased by 179.98 tons compared with the previous day, and the current position is 14,414.25 tons.In addition to the front page content, today's People's Daily's main financial contents include: 1. Guangdong-Hong Kong-Macao Greater Bay Area has added a large channel, the Huangmaohai cross-sea channel, to traffic; 2. The five departments issued a document to strengthen the recruitment and employment security of manufacturing industry and promote the formation of a recruitment and employment consortium; In March and November, the production and sales of new energy vehicles increased by 45.8% and 47.4% respectively. 4. Promote common development with the spirit of "helping each other with the same ball" (harmony); 5. Experts from the World Economic Forum: China has contributed to the global clean energy transformation; 6. Gao Yunlong attended the opening ceremony of the second Guangdong-Hong Kong-Macao Greater Bay Area Development Business Conference and delivered a speech; 7. The natural gas supply capacity of "three highs and one drop" in coal supply and demand during peak winter has been further improved; 8. Pay attention to system integration and build a high-level socialist market economic system with systematic thinking (targeted); 9. The market scale of China's crop seed industry exceeded 150 billion yuan for the first time last year. Industry-University-Research used integrated seed industry to improve quality and efficiency (high-quality development sees highlights and readings); In October and November, the passenger traffic of urban rail transit exceeded 2.7 billion passengers; 11, China's first 500 kv provincial digital power grid construction progress more than half; 12. Hangzhou Market Supervision Bureau launched the "Safe Consumption Receipt Code"; 13. Indonesia plans to add a number of special economic zones in the next four years; 14. Economic Outlook Report of the European Commission in Autumn 2024-The EU economy is expected to grow by 0.9% this year; 15. The Japanese enterprise price index reached the highest year-on-year increase in 17 months.

Morgan Stanley upgraded Hongyuan Green Energy Co., Ltd. to parity."The number of accounts opened exceeds expectations" is a general evaluation of the pilot situation of personal pension in the industry. Starting with the announcement of the pilot list of 36 cities (regions) on November 25th, 2022, by the end of June 2023, in less than one year, the number of people opening individual pension accounts has reached 40.3 million, and by the end of June 2024, the number of people opening individual pension accounts in China has exceeded 60 million. (Securities Times)Medical staff: At least seven Palestinians were killed in Israeli air strikes. They were responsible for protecting aid trucks in the south of the Gaza Strip.