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AI can solve partial differential equations thousands of times faster than before, and partial differential equations play an important role in engineering and science. In a recent study, scientists from Johns Hopkins University in the United States have developed a new artificial intelligence (AI) model called "Differential Mapping Operator Learning" (DIMON), which can solve complex partial differential equations on personal computers, thousands of times faster than before, and is expected to "show its talents" in the fields of aerospace, automobiles and medicine. Related papers were published in the journal Nature Computational Science published on the 9th.Goldman Sachs: I don't agree that gold can't reach $3,000 under a strong dollar. Goldman Sachs said that we don't agree with the view that the price of gold can't rise to $3,000 per ounce by the end of 2025 when the dollar remains strong for a long time. We predict that gold will reach $3,000 per ounce by the end of 2025, and the reduction of interest rate cuts by the Federal Reserve (rather than the strengthening of the US dollar) is the downside risk of this prediction.In addition to the front page content, today's People's Daily's main financial contents include: 1. Steady development of new quality productive forces-China Economic Observation in 2024 ③; 2. About 100 flying rainbow bridges built and under construction in China cross the blue ocean (new economic orientation); 3. VAT invoice data shows that the retail sales of household appliances increased by 74.4% in November. 4. The General Administration of Market Supervision regulates the whole process of business marketing behavior to prevent the waste of take-away catering; 5. China-Europe trains reach 227 cities in 25 countries in Europe, connecting more than 100 cities in 11 Asian countries, sending goods over 11 million TEUs and goods worth over 420 billion US dollars-crossing mountains and seas, and the "steel camel team" adds momentum to the world economy (building the "Belt and Road" and the first site); 6. Continue to play the role of the biggest engine of world economic growth (harmony); 7. Accelerate the arrival of "Digital Wisdom Future" (vertical and horizontal); 8. Continue to expand new consumption scenarios and new formats (everyone talks); 9. What do you think of the "China scenery" in the world economy (current economic question and answer in China)? 10. The two departments will further improve the working mechanism of centralized drug collection and implementation, and encourage the priority use of selected drugs and consumables; 11. Give full play to the role of bidding competition to help the standardized and healthy development of the bidding market (the way of governance); 12. The national economy is progressing steadily (number 2024); 13. Improve the quality and efficiency of life insurance management and do a good job in pension finance; 14. The global robot industry accelerates innovation and development (international perspective). In 2023, the number of newly installed industrial robots in China exceeded half of the world; 15. The active format of the new service consumption market characterized by digital and green is released to "new" vitality (consumption window, promoting the expansion and upgrading of service consumption); 16. Create more abundant new products for the integration of literature and tourism (market stroll); 17. CNCA issued an action plan to improve the quality management system certification of small and micro enterprises, improve product quality and increase quality supply (consumption kaleidoscope).

Galaxy Securities: It is recommended to pay attention to the upgrading of network infrastructure, telecom operators, optical module leaders, quantum communication leaders, Internet of Things and cutting-edge applications, etc. china galaxy Securities said that the demand for communication equipment as the base of computing infrastructure in the digital economy is expected to usher in high growth, and related sectors may usher in greater opportunities, focusing on emerging industries such as operators, optical communications, quantum communications and 5G applications to empower related industrial chains. It is suggested to pay attention to: network infrastructure upgrade+telecom operators, optical module leaders, quantum communication leaders, Internet of Things and cutting-edge applications led by central enterprises.The reporter explored: optimizing the transaction structure, the second-hand housing has become a hot spot in the market. "After the recent new property market policy, especially the reduction of transaction tax burden such as value-added tax, the second-hand housing is particularly popular." A senior real estate agent manager in Jindaotian District, Luohu District, Shenzhen, told the reporter, "Take several shed-reformed communities here as an example. Recently, more than 20 second-hand houses can be sold in each community every month. The price is low, the house is new and the location belongs to the urban area, which is very suitable for those who just need to buy a home." According to the data of Shenzhen Zhongyuan Research Center, the unit price of second-hand houses in the range of 40,000 yuan to 60,000 yuan accounted for 32.1% in November, ranking first and the increase was the most obvious. The transaction of new houses with a "building age" of less than 10 years was the most active. The reporter found out that in the second-hand housing market in several key cities, the transactions of new second-hand houses with relatively new "building age" are more active. Take Tianhe Park, a plate with high popularity of second-hand houses in Guangzhou, as an example. According to shell data, 41 sets were sold in this plate in October, a significant increase of 127.8% from the previous month. According to Yan Yuejin, vice president of Shanghai Yiju Real Estate Research Institute, the adjustment of tax policy will accelerate the listing of second-hand houses and good houses, which in turn will help buyers subscribe for second-hand houses and large-sized houses, which will have a positive effect on optimizing the transaction structure of second-hand houses and boosting second-hand housing transactions. (e company)The reporter explored: optimizing the transaction structure, the second-hand housing has become a hot spot in the market. "After the recent new property market policy, especially the reduction of transaction tax burden such as value-added tax, the second-hand housing is particularly popular." A senior real estate agent manager in Jindaotian District, Luohu District, Shenzhen, told the reporter, "Take several shed-reformed communities here as an example. Recently, more than 20 second-hand houses can be sold in each community every month. The price is low, the house is new and the location belongs to the urban area, which is very suitable for those who just need to buy a home." According to the data of Shenzhen Zhongyuan Research Center, the unit price of second-hand houses in the range of 40,000 yuan to 60,000 yuan accounted for 32.1% in November, ranking first and the increase was the most obvious. The transaction of new houses with a "building age" of less than 10 years was the most active. The reporter found out that in the second-hand housing market in several key cities, the transactions of new second-hand houses with relatively new "building age" are more active. Take Tianhe Park, a plate with high popularity of second-hand houses in Guangzhou, as an example. According to shell data, 41 sets were sold in this plate in October, a significant increase of 127.8% from the previous month. According to Yan Yuejin, vice president of Shanghai Yiju Real Estate Research Institute, the adjustment of tax policy will accelerate the listing of second-hand houses and good houses, which in turn will help buyers subscribe for second-hand houses and large-sized houses, which will have a positive effect on optimizing the transaction structure of second-hand houses and boosting second-hand housing transactions. (e company)

In 2024, the number of cases of dengue fever in Brazil exceeded 6.76 million. On December 10, local time, according to the latest data from the Brazilian Ministry of Health, this year, the number of suspected and confirmed cases of dengue fever in Brazil rose to 6,763,743, and the number of deaths rose to 5,950, with another 1,091 deaths to be verified. In 2024, the number of cases of dengue fever infection in Brazil reached a record high since the country's epidemic record, which was three times that of 2023. The death toll of dengue fever has also reached a record high, four times that of 2023. The regions with the highest infection rates are federal capital territory, minas gerais, Balana and Sã o Paulo.During the year, there were 461 new indices, and the index investment fever continued to climb. On December 10th, in order to meet the investment demand of diversified indices, CSI Index Co., Ltd. officially released five new indices, including CSI 1000 Growth Index, CSI 1000 Value Index, CSI 2000 Growth Index, CSI 2000 Value Index and CSI 1000 Quality Balance Strategy Index. With the "listing" of the above five indexes, the number of newly-issued indexes reached 461 during the year, covering categories such as strategy, style, scale, industry, theme and other fixed-income indexes; Related index asset classes include stocks, fixed income, funds and futures. At the same time, the secondary market, this year, the heat of indexed investment is also high. Looking forward to the future, with the continuous vigorous growth of market demand and unabated heat, and the precise guidance and strong support from the supervisory level, the indexed investment ecology will become more and more perfect. (Securities Daily)Citic Jiantou: The demand for promoting the release of opinions on the pipeline network and water renovation in resilient cities is expected to increase. According to the research report of CITIC Jiantou, recently, the general offices of the General Office of the Central Committee of the CPC and the State Council issued the Opinions on Promoting the Construction of New Urban Infrastructure to Create a Resilient City, which clearly stated that it is necessary to build an intelligent and efficient new urban infrastructure system and continuously improve the resilience of urban facilities, management and space. Specifically, the Opinions propose that by 2027, the construction of new urban infrastructure will make significant progress, and the supporting role for the construction of resilient cities will be continuously enhanced, forming a number of experiences and practices that can be replicated and promoted. In addition, the Opinions also proposes the implementation of intelligent municipal infrastructure construction and transformation, and the digital transformation and upgrading and intelligent management of urban water supply, drainage, power supply, gas, heat, fire hydrants (fire cranes), underground utility tunnel and other municipal infrastructure according to local conditions. We believe that in the process of building a resilient city, the demand for urban infrastructure renewal and construction is expected to continue to grow, and related water and sanitation equipment enterprises are expected to benefit.