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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.Standard & Poor's: It is expected that the rise of trade protectionism in major economies will damage the GDP growth of most emerging markets, but the impact will depend on specific policies. Central banks in emerging markets are expected to take a more cautious stance, but monetary easing will continue. 

Spot platinum just broke through the $940.00/oz mark, and the latest price was $940.90/oz, up 0.58% in the day; The main force of Nymex platinum futures recently reported $951.9 per ounce, up 0.12% in the day.The personal pension system will be expanded soon, and the third pillar of old-age security will be built in an all-round way. Recently, it was reported that the personal pension system will be implemented nationwide on the basis of pilot projects in 36 places. "It should be implemented nationwide soon. In fact, we have been making systematic preparations, and we are now well prepared." The staff of a state-owned bank in a non-pilot city told reporters. Industry researchers also told reporters that when the individual pension system was piloted, relevant supporting policies were made at the end of that year. "If it is fully rolled out according to the previous rhythm, there should be a saying before the end of this year." (Securities Times)The rate of return of the money fund has reached a record low. Since December, the rate of return of the money fund has continued to decline. The annualized rate of return of Tianhong Yubao Money Fund, the largest, fell below 1.27% on the 7th, hitting a record low. According to industry insiders, the recently released "Self-discipline Initiative on Optimizing the Self-discipline Management of Non-bank Interbank Deposit Interest Rate" has a great impact on the Monetary Fund, and the superimposed interest rate is at a low level, and the yield of the Monetary Fund may continue to decline. As the income decreases, funds will look for new directions for allocation. (SSE)

Promoting Peace and Cooperation Ethiopia and Somalia signed the Ankara Declaration. On December 11th, local time, under the mediation of Turkish President Erdogan, Ethiopian Prime Minister Abi and Somali President Mahmoud signed the Ankara Declaration in Ankara, Turkey, announcing that they would promote peace and cooperation.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 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.