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How can we get mathematical thinking？ Expert： Doing the problem is the first way.

　　Cryptologist Wang Xiaoyun recently won the 2019 Future Science Award for Mathematics and Computer Science. She puts forward the collision attack theory of cryptographic hash function, which promotes the design of a new generation of cryptographic hash function standards, has been widely used in important fields such as finance and transportation, and has made important contributions to supporting network information security.

　　Mathematics, as the foundation of natural science, its strength often affects the national strength. Almost all major discoveries are related to the development of mathematics, which is an indispensable basic tool for studying and studying modern science and technology.

　　A few days ago, the Ministry of Science and Technology, the Ministry of Education, the Chinese Academy of Sciences and the Natural Science Foundation of China jointly formulated the Work Plan on Strengthening Mathematical Science Research, which emphasized the importance of mathematical research.

　　Mathematics is the foundation of natural science and major technological innovation and development, and has become an indispensable and important support in the fields of aerospace, national defense security, biomedicine, information, energy, ocean, artificial intelligence, advanced manufacturing and so on. So, what is the essence of mathematics? The Economic Daily reporter interviewed professional math researchers and math enthusiasts, trying to solve it.

　　How to understand mathematical thinking

　　Zhou Chuan, an associate researcher at the Institute of Mathematics and Systems Science of China Academy of Sciences, believes that the essence of mathematics lies in mathematical thinking. "Mathematical thinking refers to the ability to use mathematical ideas and methods reasonably in the process of thinking and solving problems. Mathematical thinking is not a kind of knowledge, but a kind of ability. Mathematical thinking is the most important foundation for building the mathematical world. It plays an important role whether it is pure mathematical learning and mathematical research or applying mathematical tools to other fields. " Zhou Chuan said.

　　Specifically, mathematical thinking includes logical thinking, image thinking and spatial abstract thinking. It is like the huge root system of the towering tree of mathematics. Although it is invisible from the outside, it provides an important source of nutrition for mathematics. "We often say that mathematics is beautiful, and this beauty is mainly reflected in the beauty of its thinking." Zhou Chuan said.

　　The beauty of mathematical thinking lies in the balance between practicality and rationality. Zhang Jian, a math enthusiast, told reporters that taking statistics, one of the branches of mathematics, as an example, in the process of solving practical problems, statistics gives people a concise and lively aesthetic feeling. Basic statistical laws, such as the law of large numbers, the central limit law and Bayesian probability, show the harmony after the conceptual world and the perceptual world are consistent. A series of theorems behind it play an important role in the balance and unity of reason and experience, theory and practice, deduction and induction, axiomatic system and algorithm program. "The data show that some precise sciences can be developed by clear definition and logic, and some problems need to be solved by approximate measurement, which requires statistical wisdom such as error theory, probability theory and mathematical statistics." Zhang Jian said.

　　The beauty of mathematical thinking lies in the beauty of "overlord" above other disciplines. According to the data, the foundation of modern science is the Elements of Geometry written by Greece 2,500 years ago. Any discipline that can be called science must have two characteristics: first, it has an axiomatic system like the Elements of Geometry; Second, the hypothesis can be verified by experiments. Physics is based on mathematics, chemistry is based on physics and biology is based on physics and chemistry. In the final analysis, all modern science is based on mathematics. "For example, in the field of artificial intelligence, all the mathematical foundations of machine learning based on neural networks are partial differential equations and linear algebra, while other schools of artificial intelligence involve probability theory and stochastic processes. Today’s artificial intelligence is difficult to leave the blessing of big data and its related statistical variables. In order to make achievements in this field, solid and advanced mathematics literacy is indispensable. " Zhang Jian said.

　　Zhou Chuan believes that the beauty of mathematics lies in its profound definition, clear logic and concise result. For example, the famous Goldbach conjecture that "any even number greater than 4 can be written as the sum of two prime numbers" is concise but profound and wonderful. Hardy, a great British mathematician, once said, "Beauty is the touchstone of good mathematics, and ugly mathematics cannot last forever". Hardy’s idea is related to his advocating the artistry of mathematics, but it also reflects the mathematicians’ aesthetic pursuit of mathematical theory to some extent.

　　How to have mathematical thinking

　　Mathematical thinking is so important, how can we get it? Doing the problem is the first way.

　　Zhou Chuan told reporters that the purpose of doing the questions is to test the mastery of knowledge, strengthen the cognitive understanding of knowledge and develop thinking. Any scientific research is a process of trial and error, and mathematical research is no exception. "When faced with a mathematical problem, we usually make bold assumptions, divergent thinking, try a variety of different ideas, and carefully deduce and prove to see which idea is feasible and beautiful." Zhou Chuan said, "Doing problems can help mathematicians deepen their knowledge understanding, develop innovative thinking and stimulate innovative ideas, which are of great benefit to scientific research."

　　Zhou Chuan believes that mathematical research will not be smooth sailing. For real problems, the ideas and methods that are usually easy to think of are often not effective. This requires maintaining enough courage and perseverance in mathematical research. When encountering difficulties, we must have the courage to "open the road and meet the water" and strive to move forward until the destination, although this process may be very long.

　　In addition, it is also important to read more famous mathematical books. Sunny, a math researcher, told reporters that his desk has kept classic works such as Introduction to Advanced Mathematics by Hua Luogeng, Ancient and Modern Mathematics Thoughts by Maurice Klein and Princeton Mathematics Guide all the year round. "The whimsy in these books often gives people inspiration, which makes us professional mathematics researchers shine and gain valuable innovative ideas."

　　In Sunny’s eyes, most famous mathematical works are concise and to the point, which will inspire both professional researchers and staff in other fields. For example, in the third volume of the Princeton Mathematical Guide, there is a saying: "Curiosity is the driving force for doing mathematical work. When will a special result be true? Is this the best proof, or is there a more natural or beautiful proof? … … If you keep asking yourself such questions, sooner or later there will be a flash of answers — — Discover the possible path of research. " "It is tempting to think of mathematics as a collection of separate branches, such as geometry, algebra, analysis, number theory and so on. Geometry is mainly an attempt to understand ‘ Space ’ The concept of algebra is to understand the art of manipulating symbols, and analysis is to contact ‘ Infinite ’ And ‘ Continuum ’ , and so on. " Sunny said.

　　How to apply mathematical thinking

　　The application of mathematical thinking can be described as flexible, magical and extraordinary. Its application is more reflected in how to think and solve problems in a mathematical way.

　　For example, Zhou Chuan’s current research on graph data modeling and algorithm is one of the most competitive research directions. A basic idea of this research direction is to organize, model and analyze data in the form of graphs. The reporter learned that this way of thinking can be traced back to the famous problem of the Seven Bridges in Konigsberg: In the 18th century, in the suburb of Konigsberg, East Prussia, Europe, the Pregiel River crossed the city. There are two islands in the river, and there are seven bridges between the banks and the two islands. At that time, the residents in the city discussed such a question enthusiastically: how can a walker walk from one place to all seven bridges at once without repeating, and finally return to the original starting point?

　　"At first glance, this question doesn’t seem too difficult. Many people want to give it a try, but no one can find the answer. At that time, Euler, a great mathematician, thought from all the failures that such a move might not exist at all. How did Euler model and analyze this problem? " Zhou Chuan explained that, in fact, the modeling tool used by Euler is "graph". In this picture, there are 4 nodes and 7 edges. Nodes represent two banks and two islands, while edges represent bridges. Euler transformed the problem of seven bridges into the problem of finding special paths on the graph. Later, through mathematical methods, he strictly proved that such a special path did not exist, which brought a satisfactory end to the Seven Bridges problem.

　　Euler’s way of thinking is a very representative thinking paradigm, which still has a strong guiding significance today. Because there are often complex relationships between data entities, modeling data organization from the perspective of graph usually leads to higher analysis and mining accuracy. "For example, in the problem of ranking the importance of web pages, web pages are usually regarded as nodes in the graph and hyperlinks as edges in the graph, and Markov process in mathematics is used to describe users’ web browsing behavior on the Internet. Under the framework of this mathematical model, the problem of ranking the importance of web pages is transformed into the problem of solving the stationary distribution of the corresponding Markov process. This transformation provides a new way of thinking and a more effective solution for the problem of ranking the importance of web pages. " Zhou Chuan said.

　　"When you really experience the beauty of applying mathematical thinking to solve practical problems, you will feel ‘ Mathematics is the source of natural science ’ The discussion is really incisive. " Zhang Jian said. (Economic Daily China Economic Net reporter Liang Jianwei)

Latest! The list of the top 20 companies, such as brokerage asset management, fund accounts and fund subsidiaries, has come.

　　On the evening of March 24th, China Fund Industry Association disclosed the latest ranking of the asset management of securities firms, special accounts of fund companies and special accounts of fund subsidiaries.

　　With the gradual implementation of the new asset management regulations, the effect of breaking the cash pool model and curbing the channel business has appeared. The supervision of the asset management industry has continued to "prevent risks and return to the essence of investment", and the active management ability has been steadily improved, especially for securities companies. As of the fourth quarter of 2019, except for brokers with unparalleled data, the average monthly size of 19 of the top 20 brokers has all declined compared with the third quarter. At the same time, the improvement of active management ability of brokers is more obvious. In the fourth quarter of last year, six companies accounted for more than 50% of the active management scale, of which more companies accounted for more than 80% of the active management scale.

　　Average monthly scale of brokerage asset management:

　　oneThe scale of nine companies has declined, and this ranking has risen rapidly.

　　Under the trend of shrinking asset management scale, on the whole, in the fourth quarter of last year, except for brokers with unparalleled data, the average monthly size of 19 of the top 20 brokers all declined compared with the third quarter.

　　Specifically, in the fourth quarter of last year, there were six companies with an average monthly scale of 500 billion yuan, a decrease from the third quarter, namely, Guojun Asset Management, Huatai Asset Management, China Merchants Asset Management, and Securities. Among them, the average monthly scale is 1.1 trillion yuan, and it is still the only brokerage company with an average monthly scale of 1 trillion yuan. Guojun Asset Management is closely followed by 707.667 billion yuan, which is obviously different from the third place.

　　Compared with the last quarter, in the fourth quarter of 2019, there were 14 brokers whose asset management decreased by more than 5%, of which 6 brokers decreased by more than 10%, with the largest decline. In the fourth quarter of last year, the average monthly scale reached 129.129 billion yuan, down 13.02% from the third quarter.

　　The rankings of five companies have increased, among which the scale in the fourth quarter of last year was 140.147 billion yuan, ranking 16th, ranking four places higher, with the fastest growth rate. The six rankings have declined compared with the third quarter. Among them, the scale in the fourth quarter of last year reached 523.676 billion yuan, ranking sixth, and the ranking dropped by two places.

　　The latest list, in the fourth quarter of 2019, the average monthly scale reached 140.011 billion yuan, ranking 17 th.

　　In addition, the pattern of the top five is changing. In the fourth quarter of last year, securities fell out of the top five, while investment promotion and asset management made up for it, ranking fourth and fifth respectively. It should not be overlooked that the differentiation among brokers is still increasing. Among the 20 brokers, the brokerage ranked first is more than 8 times higher than the brokerage ranked last.

　　The active management scale of brokerage asset management:

　　The scale of 7 companies increased, and 6 companies accounted for more than 50%.

　　Since the release of the new asset management regulations, various regulatory rules and detailed rules have been gradually implemented, and a new operational framework for the asset management industry has been basically established. The return of business to active management and the completion of net worth transformation and upgrading have begun. Judging from the current progress, various families have made efforts to actively manage, and the effect is more obvious.

　　In the fourth quarter of last year, among the top 20 brokers, the scale of active management of 7 brokers increased to varying degrees compared with that of the third quarter, and two of them increased by more than 10%, namely BOC International Securities and China Merchants Asset Management. In the fourth quarter of 2019, the average monthly scale of assets actively managed by BOC International Securities was 72.065 billion yuan, up 15.91% from the third quarter, with the largest increase; The scale of active management of China Merchants Asset Management in the fourth quarter of last year was 181.441 billion yuan, an increase of 12.26% over the third quarter. In addition, the increase of,, and all exceeded 5%.

　　In addition, the proportion of active management of brokerage asset management is gradually increasing. Except for the brokers with unparalleled data, in the fourth quarter of last year, among the 15 brokers, 6 took the initiative to manage more than 50%, namely CICC, Huarong Securities, Zhongtai Asset Management, Guangfa Asset Management, Guojun Asset Management and Guangzheng Asset Management. Among them, in the fourth quarter of last year, CICC’s active management scale accounted for 81%, and it was the only company among 15 brokers that accounted for more than 80%. Huarong Securities took the second place with 72.5% active management scale. The proportion of active management scale of Zhongtai Asset Management and Guangfa Asset Management also exceeded 60%.

　　The scale of special accounts of fund companies is listed: 12 companies exceed 100 billion yuan.

　　According to the latest data, in the fourth quarter of 2019, 12 of the top 20 fund companies’ average monthly private asset management scale exceeded 100 billion yuan, a decrease from the third quarter. It is worth noting that in the fourth quarter of last year, the top five patterns of fund companies’ special accounts remained unchanged, namely Jianxin Fund, Chuangjin Hexin Fund, Bosera Fund, Huaxia Fund and E Fund, with average monthly scales of 536.089 billion yuan, 341.359 billion yuan, 221.394 billion yuan, 213.837 billion yuan and 189.228 billion yuan respectively, and the head effect was more obvious.

　　Pension management scale of fund companies:

　　ICBC Credit Suisse, E Fund and Boss ranked in the top three.

　　The pension scale of fund companies was also released last year. By the end of the fourth quarter of 2019, ICBC Credit Suisse, E Fund and Boss ranked in the top three, while harvest fund and Huaxia Fund ranked in the top five.

　　Average monthly size of special accounts of fund subsidiaries:

　　Jianxin Capital, China Merchants Wealth Asset Management and Agricultural Bank Huili Asset Management ranked in the top three.

　　In the fourth quarter of last year, among the top 20 private equity management companies of fund subsidiaries, 11 companies exceeded 100 billion yuan, of which CCB Capital ranked first with a scale of 580.137 billion yuan, and was far ahead, with a gap of more than 200 billion yuan from the second investment wealth management company, and ABC Huili Asset Management ranked third with an average monthly scale of 273.484 billion yuan, ranking one place higher than that in the third quarter.

　　In addition, Shenzhen Hongta Asset Management Co., Ltd. is the latest on the list. In the fourth quarter of 2019, the average size of the company was 59.997 billion yuan.

Jian Meiyan came to Chongqing to eat hot pot and was fascinated by Chongqing handsome guys seven years ago.

　Korean actress Jian Meiyan came to Chongqing to eat hotpot.

　　　　Jian Meiyan, a Korean actress who came to China for development, has gained more and more exposure due to the influence of famous programs such as Fame Shock, Go Forward and Happy 2008 of Hunan Satellite TV. Yesterday, Jian Meiyan came to Chongqing to promote her new album. Surprisingly, this lady-looking girl not only revealed her age, but also claimed that she was charmed by a handsome hotel waiter when she came to Chongqing to perform seven years ago.

　　　　Response to plastic surgery: I don’t have that much money to get it done.

　　　　Jian Meiyan appeared in a silver miniskirt yesterday, showing her slim figure to the fullest, which caused a burst of admiration as soon as she appeared. Jian Meiyan was very popular in South Korea. After the dissolution of baby·VOx, the first female singing group in South Korea that became popular in Asia, she came to China to seek gold. In the impression of the audience in China, many Korean stars had plastic surgery. When asked yesterday if they had plastic surgery, Jian Meiyan immediately denied it in Chinese: "No, I don’t have that much money."

　　　　Rooted in China: Looking for a boyfriend in China.

　　　　In recent years, many Korean stars have come to China to develop. Jian Meiyan revealed yesterday that she has specially recorded three Chinese songs in her new album, and her current task is to learn Chinese well.

　　　　Since you want to take root in China, should you consider finding a boyfriend in China? I thought Jian Meiyan would not be happy to answer, but she blurted out, "I’m looking for it. I’m 27 years old, so old!" I even told the whole story about my age. As for the criteria for choosing a boyfriend, Jian Meiyan said that as long as you are gentle and kind-hearted.

　　　　When asked about China male stars who were not impressed, Jian Meiyan became excited: "It’s in Chongqing! Can you say? " With the consent of the accompanying agent, Jian Meiyan broke the news that when she came to Chongqing to perform seven years ago, she was fascinated by a waiter in her hotel: "So handsome, I wanted to buy flowers for him at that time."

　　　　Jian Meiyan likes Chongqing hot pot very much. At the airport yesterday, the fans who picked up the plane sent her a bag of hot pot bottom material. Last night, Jian Meiyan also ate a hot pot specially. Reporter Kang Yanfang/Wen Zhangzhi/photo

Editor: Sun Jie

Internet access in China for 20 years： the structure of netizens is optimized and the access equipment is diverse.

　In 2014, China achieved the 20th anniversary of full-function access to the Internet. In the past twenty years, the construction level of Internet infrastructure such as backbone network and broadband network in China, and the number of Internet basic resources such as IP number, domain name number and website number have all entered the international advanced ranks; In addition, the number of Internet users in China surpassed that of the United States in June 2008, ranking first in the world.

The number of netizens has increased steadily, but the imbalance between urban and rural areas is still significant.

According to the 35th Statistical Report on Internet Development in China published by CNNIC, as of December 2014, the number of netizens in China reached 649 million, and the Internet penetration rate was 47.9%. From 1997 to 2000, with Yinghaiwei Company opening its Internet service to ordinary families, and then Sohu.com and People.com went online, the Internet development in China entered an active period, and the number of netizens doubled, with the growth rates of 238.7%, 323.8% and 152.8% in the three years from 1998 to 2000 respectively. In the first decade of the new century, with the gradual recovery of the Internet in China from the bursting of the bubble and entering the web2.0 era, the continuous innovation of Internet applications has driven the total number of netizens to continue to grow at a high speed; Since 2009, the growth rate of netizens has continued to slow down and entered a platform period.

picture　one　　1997-2004yearThe scale of netizens in China

Judging from the absolute scale of Internet users, China is undoubtedly the largest Internet country, but judging from the structure of Internet users, there is still a problem of unbalanced regional development in China’s Internet popularization. Although the number of netizens in rural areas has also maintained a rapid growth rate, its Internet penetration rate is still far lower than that in urban areas. As of December 2014, the Internet penetration rate in rural areas was 28.8%, an increase of only 0.7 percentage points compared with 2013. The gap between urban and rural Internet access in China makes the vast rural residents "on the unfortunate side of this gap, which means that they have few opportunities to participate in our new information-based economy and online education, training, shopping, entertainment and communication" (US Department of Commerce). Internet should be one of the powerful tools to break the urban-rural dual system. Solving the digital access gap between urban and rural areas will help to fundamentally solve the problem of unbalanced regional development in China.

picture　2　　2007-2014The scale of rural netizens and rural Internet penetration rate in China

　Mobile devices have penetrated into the lives of netizens, and network TV has become a new hot spot.

The whole industry in cmnet has maintained a strong development trend. From 2006 to 2009, the penetration rate of mobile Internet increased rapidly, and the number of mobile Internet users doubled. After 2009, the scale of mobile Internet users has increased steadily. In the context of the slowdown in the overall growth rate of Internet users, mobile Internet access has become the main driving force for the overall scale of Internet users in China. By 2012, mobile phones have become the largest internet terminal for Chinese netizens; In 2014, the proportion of Internet users using mobile phones reached 85.8%, and the proportion using tablet computers reached 34.8%. In 2014, China’s telecom industry officially entered the 4G era. The 4G network will greatly promote the development of the mobile Internet in the future with faster communication speed, lower tariffs and carrying capacity for large data transmission.

picture　three　　1999-2014The scale of rural netizens and rural Internet penetration rate in China

In 2014, Internet companies launched fierce competition around the "living room", and TV is becoming an important Internet access device. According to CNNIC data, as of December 2014, the proportion of netizens using TV to access the Internet has reached 15.6%. In the same period, according to the data released by the Ministry of Industry and Information Technology, the number of IPTV users in China has reached 33.636 million. As a mixed form of traditional TV and OTT TV, network TV will be further integrated with terminals, making TV a comprehensive digital home terminal with communication, Internet and TV functions. If the mobile phone is the mobile revolution of the traditional Internet, then network TV will become the living room revolution of the network society. (Author: China Internet Network Information Center analyst Gao Shuang)

Is Eric Wang’s new work ＂Wonders of the Young＂ a science fiction love movie？

Special feature of 1905 film network Directed by, starring,, Li Tingting, and, the film was released in domestic cinemas on November 5, 2021. The film tells the story of Guo Xiaolu, played by Eric Wang, and Su Lingfang, played by Wang Luodan. They missed and reunited many times in their lives. Guo Xiaolu, who studied medicine, discovered the secret of youth. However, as his lover around him grew old, the tacit promise left in his youth became a pity for his fantasy life.

Since the film was released, the word-of-mouth has been controversial. As of November 15th, the douban score of the film was 6.2. Some viewers thought that the love described in the film was very touching, and some viewers felt that they were confused and confused. Why are there such polarized comments? In this issue, the film director Xu Chao was invited to talk about the film with him. From the director’s point of view, what does Xu Chao think of this polarization phenomenon?

The controversy of the audience about the Wonder of the Young may come from the emphasis on the elements of "love" in the film’s propaganda, and the film has also made some genre fusion, adding some elements such as "life and death" and "science". Xu Chao said: "Before the film was released, we did many surveys and films, and found that during the process of watching the film, the audience was very interested in the love element of the film, so we paid more attention to the love element in the film in terms of publicity. Then before entering the cinema, everyone got the expectation of love. After watching this film, I don’t know what to talk about. I think there is something wrong with the expectation. "

The polarization of comments also exceeded Xu Chao’s expectation to some extent. At the beginning of his creation, he positioned the film as a biographical film. The elements such as life and death, science, love and time all revolved around the life of the hero Guo Xiaolu. These elements are common, but they are not used to show love, but to describe Guo Xiaolu’s relatively fantastic life, which leads to a certain understanding threshold. In addition, when it was announced, it was labeled as a romantic film, which made the audience who entered the theater have cognitive deviations.

As for the element of "love", the film has done a lot of blank space, even in the whole film, Guo Xiaolu and Su Lingfang never said the word "love" to each other. Many viewers who are looking forward to seeing love scenes find it difficult to understand this blank space. Xu Chao believes: "Between Guo Xiaolu and Su Lingfang, it is not love in our view, but it is higher than love. This kind of emotion is higher than love, let’s call it love, because love and love are different. They regard each other as the beautiful purity in their hearts. Even if he is wandering in the torrent of the times, even if I see all your misery and loneliness, we will guard this beautiful purity to the death. "

The film also describes a lot of stem cell research that Guo Xiaolu is engaged in. This stem cell can make people live forever, so the film has also been labeled as "science fiction". Xu Chao also denied this label. In his view, first of all, the description of stem cells in the film has been rigorously studied and can stand scrutiny. In addition, the element of "not getting old" also serves the theme of the film. In addition to the superficial meaning of immortality, it expresses an attitude of "being born to die" in the deep meaning. Some emotions will not disappear with the passage of time, and the light of life cannot be taken away by death.

In essence, The Wonder of the Young is a biographical film, and all its elements are subordinate to the performance of Guo Xiaolu’s life. The controversy over the word-of-mouth of the film mainly comes from the fact that the "love" element emphasized by Xuanfa is not the core of the film, which leads to the gap between the audience’s actual viewing and expectations. The announcement of the film should not make the audience misunderstand the core of the film while attracting the audience. A good movie needs to be announced, so that the audience can have a correct understanding of the film itself before watching it, thus creating a better viewing experience for them.

In 2025, the total box office refreshed China’s film history and broke the record of 20 billion at the fastest.

　　According to the network platform data

　　As of 21: 14 on February 16th.

　　2025 box office (including pre-sale)

　　Break through 20 billion

　　Refresh the annual box office of China film history and break the record of 20 billion at the fastest.

　　"Nezha’s Devil Boy Naughty" accounted for 59.4% of the box office.

　　Fault leading

　　(CCTV reporter Xu Panpan)

Huiyang district was awarded the top 100 comprehensive strength districts in China! 2023 National Top 100 Counties and Cities Series List Released

Recently, the China Small and Medium-sized Cities Development Index Research Group and Guoxin Small and Medium-sized Cities Index Research Institute released the research results of the high-quality development index of small and medium-sized cities in China in 2023, and released a series of lists of the top 100 counties and cities with comprehensive strength, top 100 districts with comprehensive strength, top 100 counties and cities with green development, top 100 counties and cities with investment potential, top 100 districts with investment potential, top 100 counties and cities with scientific and technological innovation and top 100 counties and cities with new urbanization quality.

(1)

The comprehensive strength index system is based on the requirements of practicing new development concepts and high-quality development, and combined with the development characteristics of small and medium-sized cities in the new period, it is evaluated from five aspects: economic development, innovation drive, ecological environment, people’s livelihood and well-being, and urban and rural governance, and consists of 15 secondary indicators.

Top 100 counties and cities with comprehensive strength in China in 2023

Top 100 National Comprehensive Strength Zones in 2023

(2)

Green is the background of high-quality development, a necessary condition for sustainable development and an important embodiment of people’s pursuit of a better life. The green development index of small and medium-sized cities has four first-class indicators and 19 second-class indicators, including resource conservation, green consumption, pollution control and environmental quality.

National Top 100 Green Development Counties and Cities in 2023

Top 100 National Green Development Zones in 2023

(3)

Urban investment potential is a kind of compound potential, which is a comprehensive embodiment of urban infrastructure, economic vitality, social environment and market environment. Therefore, the study of investment potential index of small and medium-sized cities consists of five first-level indicators, including population and human resources, infrastructure, traffic location, ecological environment and administrative efficiency, involving 20 second-level indicators.

Top 100 counties and cities with national investment potential in 2023

Top 100 National Investment Potentials in 2023

(4)

Scientific and technological innovation is an important driving force, an important supporting force, an important leading force and an important bearing capacity for urban development, an important guarantee for sustainable and healthy economic development, and a source of power for technological and industrial upgrading and resource conservation. Based on the innovation resources and development foundation, the research group evaluated the scientific and technological innovation ability of small and medium-sized cities from four aspects: scientific and technological innovation platform, scientific and technological innovation potential, scientific and technological innovation investment and scientific and technological innovation effect.

Top 100 counties and cities of national scientific and technological innovation in 2023

Top 100 National Science and Technology Innovation Zones in 2023

(5)

The new urbanization quality index of small and medium-sized cities is evaluated from four aspects: urban development, public service, urban renewal and environmental quality.

Top 100 counties and cities with new urbanization quality in China in 2023

National Top 100 New Urbanization Quality Areas in 2023

It is reported that the evaluation objects of this study are defined as: county-level cities, counties and municipal districts with relatively independent space, as well as towns with good development foundation and "building cities" conditions. Top 100 counties and cities: county-level cities, counties, autonomous counties and banners. Top 100 Districts: Municipal districts with towns and villages and relatively independent development (excluding the municipal districts of Beijing, Shanghai, Tianjin and Chongqing).

Original title: "Huiyang District was awarded the National Top 100 Comprehensive Strength Zone! 2023 National Top 100 Counties and Cities Series List Release "

Read the original text

How long does the flu vaccine take effect？ Can kidney friends play？ All 10 questions are answered.

Original kidney online doctor group kidney online

Old friends who are familiar with us all know that every autumn, Kidney Online will advise kidney friends with stable conditions and poor resistance to get a flu vaccine!

Many people told us that it was because they listened to our advice that they were able to escape when colleagues and friends around them were lying down with the flu!

Influenza is more serious than the common cold, and its typical symptoms are fever, extreme fatigue, headache, body aches, cough and sore throat. → Regarding the flu vaccine, you may have many doubts, and we will answer them together.

1. Kidney disease, can you really get the flu vaccine?

Can! Many evidence-based medical guidelines suggest that patients with chronic kidney disease with stable condition should be given priority in influenza vaccination.

2. Can uremia and dialysis nephropathy patients play?

Can!

3. Can pregnant women fight?

Can!

4. What is the taboo of influenza vaccine?

The main taboo is: allergic to vaccine ingredients, resulting in adverse reactions. These people can’t be vaccinated.

And if your kidney disease is still unstable, or you are in an acute situation such as fever and cough, suspend vaccination.

5. Which vaccine is better, domestic or imported?

Use whatever you have.

6. When will you call? How long does it take to take effect?

The flu vaccine is a dozen a year, and it is best to complete the vaccination at the end of October. Inoculation is also possible now.

After 2-4 weeks of inoculation, protective antibodies began to be produced, and the protective effect lasted for about 1 year.

7. There are three prices and four prices. Which one do you want?

There are four prices, and four prices are preferred.

8. The flu vaccine we have here is said to be only cracked, so can we get it?

Sure.

"Lysis" is a method of vaccine production, which means that the lipid membrane structure of the virus is cracked and the virus "dies" more thoroughly.

9. Can you get the flu vaccine with nasal spray and kidney disease?

As we mentioned above, all patients with kidney disease can get influenza vaccine by injection, and the injection method is inactivated influenza vaccine, that is to say, the vaccine is "dead" and inactive.

If you still have a live attenuated influenza vaccine for 3-17 years old, you must pay attention to the fact that this kind of nasal spray is a live vaccine, and you must evaluate your immune status. It is not suitable for kidney friends who eat hormones, immunosuppression, kidney transplantation and other immunocompromised people.

10. Will influenza vaccination aggravate kidney disease?

Vaccination against influenza is the most effective means to prevent influenza and avoid its serious complications.

Every year, more than 60,000 people die of influenza-related respiratory diseases in China, most of whom are elderly people and people with basic chronic diseases. Therefore, our kidney friends are actually the key protection targets of the vaccine.

After vaccination, some people may have short-term slight fever, fatigue and runny nose, and generally the symptoms can disappear naturally in two or three days.

Others may see that nephropathy is usually an autoimmune disease, and vaccination will induce immune response, which will lead to immune activity and aggravate nephropathy.

However, based on the evidence of vaccination against autoimmune diseases such as lupus, rheumatoid arthritis and Sjogren’s syndrome, it is not found that influenza vaccine will significantly increase the activity of autoimmune diseases.

Presumably, this article has answered many doubts and concerns of kidney friends about influenza vaccination, and you are welcome to pass it on to your friends around you ~

References:

Immunizations in autoimmune inflammatory rheumatic disease in adults.uptodate

Immunizations in patients with end-stage kidney diseas.uptodate

Immunizations in solid organ transplant candidates and recipients.uptodate

Overview of the management of chronic kidney disease in adults.uptodate

Application status of influenza vaccine in China and discussion on policies to promote vaccination. Chinese Journal of Epidemiology.

Original title: "Influenza vaccine, how long will it take effect? Can kidney friends play? All the top 10 questions are answered.

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Heavy! Feedback from 14 universities such as Peking University announced that the management of school-run enterprises was chaotic.

　　CCTV News:On June 16th, the 12th patrol of the 18th Central Committee announced the feedback on the special patrol of the party committees of 14 middle management universities, including Peking University, Tsinghua University, Beijing Normal University, Dalian University of Technology, Jilin University, Harbin Institute of Technology, Tongji University, Zhejiang University, Shandong University, Chongqing University, Sichuan University, Xi ‘an Jiaotong University, Northwest A&F University and Northwestern Polytechnical University.

　　Peking University: The problem of selecting and employing people is outstanding, and the management of school-run enterprises is chaotic.

　　The leading role of the Party Committee is not fully exerted, the "Four Consciousnesses" are not strong enough, the implementation of the Party’s educational policy and major decision-making arrangements is not thorough, and the requirements for building a world-class university rooted in China are not in place. The implementation of the responsibility system for ideological work is not in place. It is not conscious enough to implement the principal responsibility system under the leadership of the party Committee. Party building is weak, and the role of political guarantee has not been fully exerted. Political life within the party is not serious, and grass-roots party building work is weak. The problem of selecting and employing people is outstanding, the procedural rules are lax, the system implementation is weak, and the organization establishment management is chaotic.

　　The implementation of "two responsibility" is not in place, and the management of the school is loose and soft. The party Committee is not responsible enough, and the discipline inspection commission is not accountable for supervision and discipline.

　　The management of school-run enterprises is chaotic, the management of affiliated hospitals is weak, and the risk of integrity is prominent.

　　The spirit of implementing the eight central regulations is weak. At the same time, the inspection team also received clues reflecting the problems of some leading cadres, which have been transferred to the Central Commission for Discipline Inspection, the Central Organization Department and other relevant parties for handling according to relevant regulations.

　　Tsinghua University: Some units use university resources to seek improper benefits.

　　The "four consciousnesses" are not strong enough, the leading role of the Party committee is not brought into full play, and the implementation of the Party’s educational policy is not in place in some aspects, which is not strong enough to do a good job in ideological and political work in colleges and universities under the new situation, and the construction of ideological and political work team is weakened.

　　Party building is not strict enough, political life within the party is not strict enough, and the construction of grass-roots party organizations is weak.

　　The implementation and selection procedures are not standardized enough, and the management and supervision of cadres are not strict.

　　There is a gap in the implementation of the "two responsibility", and it is not enough to deal with some violations of discipline and discipline. The implementation of the "three changes" by the discipline inspection institutions is not in place enough, and the function of accountability for supervision and discipline is not sufficient.

　　Some units use university resources to seek improper benefits, and some cadres or staff abuse power for personal gain. The mental problems of violating the eight central regulations are still reflected.There are problems such as public money travel and private use of buses.

　　At the same time, the inspection team also received clues reflecting the problems of some leading cadres, which have been transferred to the Central Commission for Discipline Inspection, the Central Organization Department and other relevant parties for handling according to relevant regulations.

　　Beijing Normal University: Integrity risks in school-run enterprises and cooperative schools are prominent.

　　The "four consciousnesses" are not strong enough, and the role of party committees is not enough. The spirit of implementing the important speech of the Supreme Leader General Secretary on education needs to be strengthened. The leading role of teachers is weakened, and the construction of teachers’ morality needs to be strengthened; The principal responsibility system under the leadership of the party Committee is weak; The responsibility system for ideological work is not implemented in place, and political acumen needs to be strengthened.

　　The political life within the party is not serious enough, and the party building work is weak.

　　The implementation of the selection and employment system is not strict, the selection procedure is not standardized, and the introduction of talents is not enough.

　　The implementation of the "two responsibility" is not in place, and the handling of disciplinary issues is loose and soft.

　　There are mental problems such as eating and drinking public funds that violate the eight central regulations;Financial and asset management is not strict.The risks of honesty in school-run enterprises and cooperative education are outstanding.

　　Dalian University of Technology: The part-time management of leaders is not strict

　　The "four consciousnesses" are not strong enough, the party’s leadership is weakened, the role of the party Committee is not enough, and the implementation of the ideological work responsibility system is not in place; The implementation of the principal responsibility system under the leadership of the party Committee needs to be strengthened.

　　The political life within the party is not serious enough, and the party building work is weak.

　　The selection and employment work is not standardized, and the part-time management of leaders is not strict.

　　The main responsibility is lacking, and the handling of disciplinary problems is loose and soft.

　　There are mental problems that violate the eight central regulations, such as eating and drinking with public funds and going abroad (in violation of regulations);Infrastructure projects and school-run enterprises are at great risk of integrity, and supervision and management are not in place.

　　Jilin University: There is a "nepotism" relationship, and the falsification of cadre files is prominent.

　　The "four consciousnesses" are not strong enough, the leading role of the Party committee is not brought into full play, the implementation of the principal responsibility system under the leadership of the Party committee needs to be strengthened, the implementation of the ideological work responsibility system is not strong enough, and the political acumen needs to be strengthened.

　　The political life within the party is not serious enough, the party building work is weak, and the role of the staff branch is weakened.

　　The implementation of the selection and employment system is not strict, the selection and appointment procedures are not standardized, the daily supervision of cadres is not in place, the entry control is not strict, there is a "nepotism" relationship, and fraud problems such as cadre files are prominent.

　　The implementation of "two responsibility" is not in place, and the integrity risk management and control needs to be strengthened; There are mental problems such as eating and drinking at public funds and traveling at public funds that violate the eight central regulations;The management of capital assets, scientific research funds, school-run enterprises and other fields is lax, and there are many risks of integrity.

　　Harbin Institute of Technology: The spirit of implementing the eight central regulations is not strict, and the "four winds" problem still exists

　　The "four consciousnesses" are not strong enough, the leading core role of the Party committee is not fully played, there is a gap in implementing the major arrangements of the central government in combination with the actual situation, ideological and political work is weak, and the responsibility system for ideological work is not in place.

　　The political life within the Party is lax and untrue, the systems of implementing central group study, dual organizational life and "three meetings and one lesson" are not in place, there are weak links in grass-roots party building, and the fighting bastion of the Party branch and the vanguard and exemplary role of party member are not brought into full play.

　　The implementation of the selection and employment system is not strict enough.

　　The implementation of the "two responsibility" is not in place, the management of the party is loose and soft, the spirit of implementing the eight central regulations is not strict, and the "four winds" problem still exists.There are integrity risks in school-run enterprises, asset management, material procurement, research funds and other fields.

　　Tongji University: There is a certain deviation in the "baton" orientation of running a school, and the implementation of the ideological work responsibility system is not strong enough.

　　The "four consciousnesses" are not strong enough, the principal responsibility system under the leadership of the Party Committee is not in place, the leading role of the Party Committee is diminishing layer by layer, moral education needs to be strengthened, the education of teachers’ morality and style and the education guidance for students are not deep enough, there is a certain deviation in the "baton" orientation of running a school, and the implementation of the responsibility system for ideological work is not strong enough;

　　The construction of grass-roots party organizations is weak, and the procedures for selecting and employing people are sometimes irregular and not strict enough.Some leading cadres do not truthfully report personal matters, take part-time jobs in violation of regulations and run enterprises through business;

　　The implementation of the main responsibility is not real enough, and the supervision and discipline are lax and soft, which violates the spirit of the eight central regulations and the "four winds". The risks of honesty in school-run enterprises, infrastructure, asset management, research funds and other fields are high.

　　Zhejiang University: There is a high risk of honesty in school-run enterprises, infrastructure, material procurement, scientific research funds and other fields.

　　The "four consciousnesses" are not strong enough, the principal responsibility system under the leadership of the Party Committee is not in place, the leading role of the Party Committee is diminishing layer by layer, moral education needs to be strengthened, the education of teachers’ morality and style is not deep enough, the effectiveness of students’ ideological education is not strong enough, there is a certain deviation in the "baton" orientation of running a school, and the implementation of the responsibility system for ideological work is not strong enough.

　　The construction of grass-roots party organizations is weak, the procedures for selecting and employing people are sometimes irregular, the handling of false reports on personal matters is light, and there are some problems in the selection and appointment of cadres.

　　The main responsibility is not pressed enough, the supervision and discipline are loose and soft, and there are many problems in violation of the spirit of the eight central regulations and the "four winds". The risks of integrity in school-run enterprises, infrastructure, material procurement, scientific research funds and other fields are high.

　　Shandong University: Students-oriented and service-oriented awareness is not in place.

　　The "four consciousnesses" are not strong enough, and the leading role of party committees is not brought into full play. There are superficial, formal and formality problems in studying and implementing the central decision-making arrangements in some aspects; There are some deviations in the development concept and school-running policy, which tend to focus on extension and expansion, and the connotation is not improved enough.

　　The awareness of student-oriented and serving students is not in place.

　　The problem of weakening the party’s construction is more prominent, and the system of party Committee theoretical study center group learning, double organization life meeting and "three meetings and one lesson" is not implemented effectively.

　　The personnel management of cadres is not standardized.

　　The implementation of the "two responsibility" is not strong enough, and it is not enough to move the truth. The implementation of the "three turns" by the Commission for Discipline Inspection is lagging behind, and the discipline review work is weak.

　　There are integrity risks in the use of scientific research funds, school-owned enterprises, affiliated hospitals, engineering construction and other fields.

　　 Chongqing University: There are problems in infrastructure projects, school-run enterprises, scientific research funds and the purchase and sale of teaching materials.

　　The "four consciousnesses" are not strong enough, the spirit of studying and understanding the series of important speeches by the Supreme Leader General Secretary is not in place, the strategic decision of "double first-class" with China characteristics is not timely enough, there is a gap in implementing the principal responsibility system under the leadership of the Party Committee, and the responsibility system for ideological work is not strong enough.

　　Party building is weak, political life within the party is not serious enough, and the role of grass-roots party organizations as fighting bastions is not fully exerted.

　　There is a lack of overall planning in selecting and employing people, and the personnel system for implementing cadres is not strict enough.

　　Managing the party is too lenient, the "two responsibility" is not really pressed, and the accountability of discipline is too light and soft.

　　The spirit of implementing the eight central regulations is not in place, and the "four winds" problem still exists. The prevention and control of integrity risks is weak, and there are problems in infrastructure projects, school-run enterprises, scientific research funds, and the purchase and sale of teaching materials.

　　Sichuan University: The phenomenon of violating discipline against the wind still exists.

　　The "four consciousnesses" are not strong enough, there is a gap in implementing the party’s educational policy, and the spirit of studying and implementing the series of important speeches by the Supreme Leader General Secretary is not deep enough. The responsibility of ideological work is not compacted enough, and there is a blind spot in position supervision. The principal responsibility system under the leadership of the executive party Committee is not in place enough, and the overall function of the team is not fully played.

　　Political life within the party is not serious enough, and grass-roots party organizations are not sound enough.

　　The overall planning of cadre team construction is not enough, and the implementation of cadre personnel system is not strict enough.

　　The "two responsibility" is not really pressed, and the supervision and management are loose and soft.

　　The spirit of implementing the eight central regulations is not in place, and the phenomenon of violating discipline against the wind still exists.There are many corruption problems in infrastructure, and there are integrity risks in affiliated hospitals, school-run enterprises, scientific research fund management and enrollment.

　　Xi ‘an Jiaotong University: The implementation of the ideological work responsibility system is weak, and the position consciousness is not strong enough.

　　The "four consciousnesses" are not strong enough, and the core role of party Committee leadership is not fully exerted. The implementation of the party’s educational policy is not comprehensive enough. Dealing with the relationship between teaching and educating people, scientific research and teaching, scale expansion and connotation development is not good enough. The implementation of the responsibility system for ideological work is weak and the sense of position is not strong enough. The implementation of the principal responsibility system under the leadership of the party Committee is not in place, and the party Committee is not strong enough to grasp major events.

　　There are weak links in party building, political life within the party is not strict, and the quality of democratic life is not high. The construction of grass-roots party organizations is weak, and the implementation of the "three sessions and one lesson" system is not strict.

　　The implementation of the selection and employment system is not standardized enough. The Party Committee’s "two responsibility" is not implemented in place, the Party Committee’s awareness of fulfilling the main responsibility is not strong, the Disciplinary Committee’s "three turns" is not in place, and the supervision and discipline are loose and soft.

　　There are spiritual problems that violate the eight central regulations, and the risks of scientific research funds and school-run enterprises are high.

　　Northwest A&F University: The problem of selecting and employing people is more prominent, and the implementation system is not strict

　　The "four consciousnesses" are not strong enough, and the core role of party Committee leadership is not fully exerted. The implementation of the party’s educational policy is not in-depth, the awareness of moral education is not strong enough, and the agricultural characteristics are weakened. The responsibility system for ideological work is not implemented effectively, and the accountability mechanism is not perfect. The implementation of the principal responsibility system under the leadership of the party Committee is not in place.

　　There are weak links in party building. The political life within the party is not strict, and the guidance for the construction of grassroots party organizations is weak. The problem of selecting and employing people is more prominent, and the implementation system is lax.

　　The requirements for strictly administering the party in an all-round way are not in place. The party Committee’s awareness of the main responsibility is not strong, the discipline inspection commission’s supervision responsibility is not enough, and the "three turns" are not in place.

　　The spirit of implementing the eight central regulations is not strict.The risk of honesty in school-run enterprises, infrastructure and financial management is high.

　　Northwestern Polytechnical University: There is a tendency to emphasize business over politics in implementing the school-running concept.

　　The "four consciousnesses" are not strong enough, and the core role of party Committee leadership is not fully exerted. Ideological and political education is weak, and the implementation of the party’s educational policy is not comprehensive; Lide Shuren’s consciousness is not enough, and there is a tendency to pay more attention to business than politics in implementing the concept of running a school; The implementation of the responsibility system for ideological work is weak, and the sense of position is not strong enough; The principal responsibility system under the leadership of the party Committee is not implemented in place, and democratic and scientific decision-making is not enough.

　　There are weak links in party building. Political life within the party is not strict enough; The construction of grass-roots party organizations is weak, and the implementation of the "three sessions and one lesson" system is not enough; The selection and employment system is lagging behind and the implementation system is not strict.

　　The requirements for strictly administering the party in an all-round way are not in place. The party Committee has a weak sense of fulfilling its main responsibility, the discipline inspection commission has not fulfilled its supervisory responsibility enough, and the "three changes" are not in place.

　　There are spiritual problems in violation of the eight central regulations, lack of supervision of school-run enterprises, and many problems in scientific research funds and infrastructure project management.

　　Source: People’s Daily

Grasp the bottom line of people’s livelihood with practical actions. This year, the state will guide high-quality medical resources to sink to the grassroots.

CCTV News:The National Health and Wellness Commission held a press conference on March 27th to introduce the situation of promoting medical voluntary service. This year’s medical and health work will creatively implement the work policy of focusing on the grassroots level and guide high-quality medical resources to sink to the grassroots level.

In recent years, the National Health and Wellness Commission has continuously promoted the sinking of high-quality medical resources, improved the conditions of primary medical and health service facilities, and strengthened the training and cultivation of primary medical and health service personnel. The capacity of primary medical and health service in China has been improved as a whole, and the people’s sense of gaining and feeling of seeing a doctor at the primary level has been continuously improved.

Mi Feng, spokesperson of the National Health and Wellness Commission, said: "We will focus on the sinking of personnel, comprehensively push forward the construction of a close medical community, and strengthen the coordinated linkage of county and rural medical services; Actively implement policies and measures to promote the sinking of urban medical resources, do a good job in supporting county-level hospitals, community health service centers, township hospitals and village clinics in a layered and orderly manner, and take many measures to stimulate the enthusiasm of higher-level medical institutions to sink high-quality resources. "

National Health and Wellness Commission: A series of activities of "Famous Doctors Going to the Grassroots Volunteer Service Bank" were launched.

The national centralized demonstration activities of culture, science, technology and health "going to the countryside", "Famous doctors go to the grassroots voluntary service line" and "10,000 medical workers in Sichuan Province go to the grassroots" were held in Liangshan, Sichuan on March 27th.

Experts from Beijing, Shanghai and other places came to Lizhou Town, Liangshan early in the morning to carry out a free clinic. I heard that national experts came, and hundreds of villagers from several nearby villages came to see a doctor. In addition to the free clinic, the experts of the Volunteer Service Corps will also carry out teaching rounds and case answering in local hospitals, and give lectures on adolescent mental health in local primary and secondary schools, which is also the first stop of "famous doctors go to grassroots volunteer service" in 2024.

Zhou Fude, deputy director of the Department of Nephrology, Peking University First Hospital, is the team member who participated in the most volunteer service activities. He participated in 13 of all 22 grass-roots trips, and this is his second time to serve the local people in Liangshan.

Zhou Fude, deputy director of the Department of Nephrology, the First Hospital of Peking University, said: "To serve the grassroots people and be an indomitable doctor is to take root in and serve the people. It is a year after I came to Liangshan this time. I think the people have a strong sense of seeing a doctor. The biggest change this time is that all the patients I see are kidney patients and have kidney disease tests, which shows that they pay more attention to the examination and treatment of kidney disease. "

According to the relevant person in charge of the National Health and Wellness Commission, since 2018, the National Health and Wellness Commission has organized outstanding representatives of "Good Doctors in China and Good Nurses in China" to go to the old revolutionary base areas and remote areas to carry out the volunteer service of "Famous Doctors Going to the Grassroots". In 2023, the Volunteer Service Corps of "Good Doctors in China and Good Nurses in China" was established, directly serving more than 50,000 people.