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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.Market News: Most members of the US House of Representatives support the $895 billion national defense policy bill, and voting continues.Morgan Stanley upgraded the rating of Jingao Technology to over-allocation, with a target price of RMB 27.36. Tongwei shares will be upgraded to overweight with a target price of RMB 39.53.

Morgan Stanley upgraded the rating of Shandong Gold H shares to over-allocation, with a target price of HK$ 22.20.Bank of Brazil: The Committee has been paying close attention to how recent financial developments affect monetary policy and financial assets.Trump's NASA candidate called his future SpaceX mission a "question mark". On Wednesday, Jared Isaacman, a billionaire in science and technology, who was selected by President-elect Trump, said that his planned private astronaut mission with Musk's SpaceX company "is still a question mark and may be put on hold for the time being" because he is going to enter the government department to lead NASA.

Economic Daily: "Stabilizing the stock market" strongly guides stabilizing expectations. The article said that the key to stabilizing the stock market is to stabilize confidence. Recently, the stock market has been active in trading, and investors' confidence in the economic improvement and corporate profits has improved. All parties look forward to leveraging the stock market as the entry point to further stabilize the economy and steady growth. This expectation can only form a continuous positive feedback if it is mutually reinforced with the positive signals on the economic side. In the future, it is necessary to continue to improve the forward-looking, targeted and effective macro-control, urge all localities and departments to implement the defined policies and measures as soon as possible, solidly promote the economic upward, structural improvement and sustained development, and promote confidence boost and a virtuous circle and spiral rise in economic fundamentals.The Iraqi Foreign Minister talked with the French Foreign Minister to discuss the situation in Syria and combat extremism. On December 11th, local time, Iraqi Deputy Prime Minister and Foreign Minister Fuad Hussein talked with French Foreign Minister Barrow. During the call, the two sides agreed that the extremist organization "Islamic State" should be prevented from rebuilding its power. At the same time, the two countries should continue to carry out joint anti-terrorism operations in Syria and Iraq and continue to maintain cooperation in strengthening regional security and stability. The two foreign ministers discussed the security, military and political situation in Syria, and discussed the impact of the Syrian situation on Iraq and the region. The two sides stressed the need to promote the comprehensive political settlement of the Syrian issue led by the United Nations, ensure the full participation of all ethnic groups in Syria and safeguard their rights. The two sides agreed that in addition to communication with relevant countries and Syria's neighbors (including Turkey, Jordan, Lebanon and other Arab countries), Iraq and France should also continue bilateral coordination.Japanese enterprise survey: Enterprises believe that Trump's next presidential term will have a negative impact on the business environment, and 60% of Japanese enterprises expect that the trading range of USD/JPY will be between 140 and 150 by 2025. Half of Japanese companies expect higher profits in the next fiscal year.