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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.US$ 895 billion The US House of Representatives passed the national defense policy bill for fiscal year 2025. On December 11, local time, the US House of Representatives passed the national defense policy bill of US$ 895 billion with 281 votes in favor and 140 votes against, authorizing the Ministry of National Defense to provide funds for fiscal year 2025. It is reported that the bill has now been sent to the Senate.Fund researchers bluntly said: the era of monetary fund lying and winning is over. Shanghai thought that unnamed fund researchers bluntly said that the era of monetary fund lying and winning is over. A person from a fund company in South China said that the continuous decline in the yield of money funds means that the impact of rates is becoming more and more important. Since the beginning of this year, many money funds have announced fee reductions. Wang Menghan, an analyst at Zheshang Securities, said that compared with similar products, the advantages of money funds are tax exemption, liquidity and stable net value. Among them, for institutional customers, there are still tax exemption and liquidity demands, so there is little demand for reducing the holdings of money funds. However, for non-institutional investors, because the stability of the net value of the money fund will be obviously weakened, there is a demand to reduce the holdings of the money fund. (SSE)

The number of registered warehouse receipts for steel futures reached a new high in recent five years. In 2024, the spot price of steel continued to hover near the production cost line, which made the development of steel enterprises face a staged dilemma. In order to stabilize daily operations, more and more iron and steel enterprises began to participate in the futures market, the most direct manifestation of which is the significant increase in the number of registered warehouse receipts for steel futures. In November this year, the registered volume of hot-rolled coil futures warehouse receipts in Shanghai Futures Exchange once reached 523,100 tons, a record high of nearly five years. Previously, the registered volume of rebar futures warehouse receipts reached the highest value of 210,100 tons in the past five years in September this year, and the registered volume of stainless steel futures warehouse receipts reached the highest value of 197,100 tons since listing in July this year. (SSE)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.Market News: The U.S. Court of Appeal rejected the diversified disclosure rules of Nasdaq's board of directors.

US$ 895 billion The US House of Representatives passed the national defense policy bill for fiscal year 2025. On December 11, local time, the US House of Representatives passed the national defense policy bill of US$ 895 billion with 281 votes in favor and 140 votes against, authorizing the Ministry of National Defense to provide funds for fiscal year 2025. It is reported that the bill has now been sent to the Senate.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.Foreign investment increased by 9.7% in the first 10 months. China enterprises need multiple supporting escorts to "go global". At present, it has become the general trend for China enterprises to "go global". The data from January to October 2024 recently released by the Ministry of Commerce shows that the amount of foreign direct investment in China's whole industry has increased steadily. Statistics from the Ministry of Commerce and the foreign exchange bureau show that from January to October 2024, China's foreign direct investment in the whole industry was 135.87 billion US dollars, up 9.7% year-on-year. From large-scale infrastructure enterprises to build traffic arteries overseas, to technology companies to set up R&D centers in foreign countries, and then to manufacturers to lay out overseas factories, China enterprises have a wide and in-depth overseas footprint. However, it is worth noting that in the increasingly complex international environment, the support of professional supporting services is very important for China enterprises in the process of "going global". (SSE)