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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.Syrian caretaker Prime Minister said that the current government will manage the transitional period of the country. On the 11th local time, Syrian caretaker Prime Minister Mohamed Bashir said that the current government will manage the transitional period and take over the archives of various ministries and agencies of the Assad government. He mentioned that he had met with the relevant personnel of the former government and made relevant handover, and the "Syrian National Salvation Government" would assume the responsibilities of the existing ministries and commissions.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)

At the end of new york on Wednesday (December 11th), the main contract of CME bitcoin futures BTC was $102,000, up 5.44% from the end of new york on Tuesday. The main contract of CME ethereum futures DCR was reported at $3,855.00, up 4.70% from Tuesday.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.The Swiss National Bank sharply cut interest rates by 50 basis points, and the Swiss National Bank lowered the benchmark interest rate by 50 basis points to 0.50%, which is the fourth consecutive interest rate cut. The market generally expects to cut interest rates by 25 basis points.

The Central Meteorological Observatory issued a blue gale warning at 18: 00 on December 11. It is estimated that there will be about 5 northerly winds and gusts of 6-8 in eastern Xinjiang, central and western Inner Mongolia, Hexi, Ningxia and northwestern Shaanxi from 20: 00 on December 11 to 20: 00 on December 12. There will be 7-8 northeast winds with gusts of 9 in the southern part of the East China Sea, the Taiwan Province Strait, the east of Taiwan Province, bashi channel and the northern and central parts of the South China Sea.The situation in Syria has turned around? The airport in Damascus will be reopened after lifting the curfew. On the 11th local time, the Syrian "Sharm Liberation Organization" announced the lifting of the curfew in the capital Damascus since the 8th, and called on the Syrian people to return to work. On the same day, the person in charge of Damascus International Airport said that the airport will be reopened in "the next few days" and flights can be resumed quickly. (CCTV News)The policy continued to catalyze the large consumption sector or welcome a new round of valuation to repair the market. On December 11, the A-share market shrank. The concept sector of big consumption has been concerned by the market, and the food, beverage and retail sectors are among the top gainers. Analysts believe that near the Spring Festival, the top-down emphasis on domestic demand and policy expectations are heating up, and the big consumer sector is expected to usher in a new round of valuation repair. An Yaze, chief analyst of the food and beverage industry of CITIC Jiantou Securities, said that the recent introduction of a series of incremental fiscal and monetary policies has released a clear policy signal to strive to achieve the goals and tasks of economic and social development throughout the year, focusing on boosting consumption and expanding effective domestic demand. The food and beverage industry is expected to usher in a turning point in the boom. (china securities journal)