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Get "model design" new skills: can AI control its own evolution?

  "It only takes a few lines of code to build a regression model." Programmers recognize the performance of Google AutoML and think that the model designed by AutoML is comparable to that designed by machine learning experts. A few days ago, Google engineers introduced the Google AutoML project in China and Silicon Valley respectively.

  Confused doubts followed — — AI evolved again? ! Already self-developed? Can control their own evolution? Is it to get rid of humans?

  How many steps does evolution take?

  AI has indeed evolved, and it can do more and more things and achieve remarkable results. Behind it is the "triple jump" of AI implementation path — —

  Zhao Zhigang, a researcher at the Big Data R&D Department of Jinan Center of National Supercomputing, said: "At first, we used mathematical formulas and ‘ if… … then’ Wait for the statement to tell the computer what to do in the first step and what to do in the second step, teach it by hand, and then give the machine N groups of inputs and outputs. The rules or laws in the middle are learned by itself. "

  "Before, many smart minds spent their whole lives studying how to extract effective features." Mo Yu, CTO of Smart Point, which focuses on intelligent shopping guide dialogue robots, explained, "The invention of neural network algorithm and the emergence of deep learning technology have made AI evolve to 2.0, and the work of extracting features is carried out by AI itself, and our work has also changed accordingly."

  It is easy to explain the transition from "1.0" to "2.0" with the model of mathematical function: if the tasks of image recognition, semantic understanding and chess playing are all regarded as different Y=f(X), that is, the input picture, voice or chess move of "cat" is "x", and the output cat, answer and chess move is "y". Before deep learning, people find the formula corresponding to function F through their own analysis and tell it to AI. After deep learning, people input a lot of correspondence between x and y, and AI finds the formula corresponding to function f by itself.

  "The specific content of the function F found by AI may be better than that found by humans, but humans don’t know it, just like a black box." Mo Yu said, "But the form of F is designed by AI researchers through research. If deep neural network is used, the modules in the network and the organization between modules are also designed in advance."

  With the maturity and popularization of deep learning technology, there has been a specific pursuable experience in model construction. "The release of various common neural networks has made the threshold for employment lower and lower. Some ordinary model construction and optimization, just graduated students can get started in online learning tutorials. " Zhao Zhigang said.

  When modeling becomes a learnable skill, AutoML appears. What it can do is the model design work of AI researchers. "It will help different companies build artificial intelligence systems, even if they don’t have extensive expertise." Google engineers recommend this. AI successfully evolved to 3.0.

  In fact, AutoML still replaces the work that human beings can extract experience. "If people described a set of ‘ Road network ’ With the technical assistance of deep learning, the machine can find the optimal path as quickly as possible; Then AI can now design its own road network. " Zhao Zhigang was concise.

  It can be seen that both deep learning and AutoML only replace the work that some groups of human beings have studied thoroughly. "What machines can do, try not to work by hand" is the life creed of many programmers, which gave birth to AutoML. Based on the same creed, Microsoft developed DeepCoder. "It can be used to generate programs that satisfy given input and output." Mo Yu said, but its performance is not satisfactory at present, and only some simple programs can be written.

  Who is "God"

  There is no doubt that the answer is human.

  Since AI has evolved to a higher level of model design, what changes have taken place in the "hand of God"?

  "An alchemist", Mo Yu vividly talked about his work in two words. "Smart is a professional intelligent customer service. The work of R&D personnel mainly focuses on problem modeling (how to turn actual problems into problems solved by artificial intelligence technology) and algorithm optimization (how to improve the effect of artificial intelligence algorithms)."

  "refining" means constant debugging and improvement. "For a specific person, the more you throw your temper, the better. The more accurate the answer, the better." Mo Yu said, "Our X is the customer’s question, Y is the reply of the robot customer service, and the middle function F needs training."

  This is not an easy task. If we divide the experience of human society into three categories: definite rules with formulas, knowledge that can be expressed in words, and feelings that can only be understood but cannot be expressed. The last category is the most difficult to ponder.

  "Therefore, we try to build a perfect closed-loop feedback, understand the preferences of specific users, and finally achieve what they like through the expression of emotions and interests." Mo Yu said, "At present, it is in the stage of man-machine collaboration, but the acquisition of more and more samples will help our intelligent customer service to give accurate and pleasing answers."

  It can be seen that not all fields are suitable for AI’s self-development. For example, in the aspect of problem modeling, how to abstract practical problems into machine learning problems can not be completed by AI. In the stage of AI2.0, R&D personnel also need to design the form of function F manually.

  So, what will be the future of AutoML popularization?

  "Humans are liberated from lower-level jobs." Zhao Zhigang said, "If the model design can be done by AI, then AI researchers will explore more the design of the basic modules that make up the model."

  "Developing AI models with AutoML is similar to children playing with ‘ Lego ’ Toys. " Zhao Zhigang put it in simple terms, and the designers of Lego disassembled the whole world into detailed modules, so that everything could be used and then combined into complex models. The higher level of human work is to find basic units, that is, modules, for AI in different fields. For example, in the field of image recognition, humans have designed various modules such as convolution and pooling. "AutoML can build a model based on this, and constantly adjust the module combination to obtain a more reasonable output. The finer the module, the more versatile it can be, and the more self-developed AI can be used. " Zhao Zhigang said.

  Extended reading

   Where are the talents needed by the industry?

  Alleviating the shortage of talents is the main selling point of AutoML. "AI systems are blooming everywhere, but AI talents are far behind." Google explains why AutoML is indispensable. What is the current status of AI talents?

  In 2017, the Global AI Talent Report and the BAT Artificial Intelligence Talent Development Report were released one after another. "The shortage of AI talents is real." Xu Wenjuan, vice president of Shengshi Investment Group, said, "The shortage of talents in start-up and development enterprises is particularly serious. From the current global perspective, the United States has the largest number of AI talents, and China’s AI talents can’t be compared with it in terms of number of people and experience. "

  Zhao Zhigang has the same feeling: "China’s AI field is short of veterans, experts, generalists and top masters." The optimization and debugging of the model requires experience, the exquisite design of the model requires superb skills, and the application of AI in various industries requires compound talents. In addition, there are only a handful of top talents leading the development direction of AI, and most of them are abroad.

  Xu Wenjuan introduced that China has the most AI talents in BAT (Baidu, Ali, Tencent). Generally, there are several kinds of background experiences of such talents, such as returnees, BAT work experience, or from universities or research institutes.

  "AI self-development should not be able to replace people’s work in the short term, and there is still a long way to go." Xu Wenjuan said. Zhao Zhigang analyzed from an academic point of view: "Only when human beings design AI models in different application fields and further decompose them into a series of general modules, such as the periodic table of elements in chemistry, DNA and RNA in biology, can this self-development have more applications."

Dong Mingzhu talks about Gree’s change of ownership: it is not full of dissatisfaction, and steady development does not depend on a certain shareholder.

On December 28th, the 4th "Make the World Love Made in China" Summit Forum was moved to the headquarters in Gree Electric, Zhuhai, which was the first large-scale event held at the headquarters after the transfer plan of Gree Electric (000651) was finalized.

When interviewed by reporters after the meeting, Dong Mingzhu, the chairman of Gree Electric, said that he was "not satisfied or dissatisfied with the scheme" when talking about the transfer of control rights. She said that the steady development of Gree Electric over the years is not due to a certain shareholder, but mainly depends on the management team. This time, Zhuhai SASAC withdrew from the position of major shareholder in the hope that Gree Electric would become a more market-oriented listed company.

Dong Mingzhu also stressed that after the transfer of Gree Electric’s controlling stake, there will be "three invariants": the integrity of society, the cultivation of employees and the protection of the legitimate interests of shareholders cannot be changed.

Dong Mingzhu, Chairman of Gree Electric 

Withdrawal of state-owned assets: in order to establish a more market-oriented system.

On December 15th, Zhuhai SASAC officially approved Gree Group’s plan to transfer 15% of Gree Electric shares to Zhuhai Mingjun. Gree Electric will become a public company without controlling shareholders and actual controllers.

Dong Mingzhu explained that Zhuhai SASAC sold its shares in the hope that Gree Electric would become a truly public company. Dong Mingzhu quoted Guo Yonghang, secretary of Zhuhai Municipal Party Committee, as saying that the government should "show up immediately when enterprises need it;" When enterprises don’t need it, you are far away and keep a clear political and business relationship. " Dong Mingzhu said that the focus of this transfer of Gree’s control right is not the withdrawal of state-owned assets, but the establishment of a market-oriented system for listed companies to operate and develop better.

In addition, the transfer of control rights in Gree Electric was also promoted under the background of the accelerated development of Guangdong-Hong Kong-Macao Greater Bay Area. "Zhuhai is located in the center of Greater Bay Area. We have more thoughts and positioning for the future construction of Greater Bay Area and the development of Zhuhai. I feel that through this equity transfer, more listed companies will be built for Zhuhai, and (Zhuhai) will become a more market-oriented place that is conducive to the faster development of enterprises. " Dong Mingzhu said that the equity transfer is of far-reaching significance.

According to the announcement on December 2nd, the price for Gree Group to transfer 15% equity of Gree Electric is 41.66 billion yuan. If the transaction is finally made at this price, the takeover party will have a floating profit of 16.6 billion yuan by taking this 15% equity based on the current share price of Gree Electric.

Dong Mingzhu revealed that Gree Electric will build Gree Tower in Hengqin, Zhuhai, to provide some support for the development of Macao. "Although there are more than 10 research institutes and nearly 100 research institutes in Gree Electric, with the diversified development, Gree will build more research institutions. Building Gree Building in Hengqin is a platform to boost Macao’s development and provide talents for the University of Macau and Macau University of Science and Technology. "

Gree Electric launches Gree three-generation mobile phones.  

Management is the biggest beneficiary? The team is pure.

Gree Electric’s 15% equity was taken over by Zhuhai Mingjun, and behind Zhuhai Mingjun, besides Gaoying Capital, Gree Electric management also participated in the shareholding. Some outsiders believe that the biggest beneficiary of the transfer of control rights in Gree Electric is the management of Gree Electric.

Dong Mingzhu responded that Gree Electric’s management is a pure team. In the past 20 years, it has never been more concerned about the company’s shares. It is bent on making Gree bigger and stronger, and there is no other idea. The development of an enterprise is not supported by capital, but by the innovative culture of the enterprise.

According to CICC’s report, Gree Group’s plan to transfer 15% of Gree Electric’s equity has properly arranged the interests of Gree Electric’s management. Among them, Gree Electric management entity will subscribe Zhuhai Mingjun 2.426 billion yuan, and get 11.10% of the capital contribution; In addition, the management entity obtains 41% of LP investment share (i.e. 20.3% of investment share) from Zhuhai Xianying (GP general partner of Zhuhai Mingjun), and can fully enjoy the management fee and GP income brought by Zhuhai Mingjun. The management entity will distribute 8% of the total GP income to the management and employees who have made important contributions to the listed company. The management entity obtained 41% controlling equity of Zhuhai Yuxiu (GP general partner of Zhuhai Xianying) for RMB 4.305 million, which can indirectly control Zhuhai Mingjun. After the equity transfer is completed, the company will promote the equity incentive plan, with the total amount not exceeding 4% of Gree Electric’s shares.

Are you satisfied with Gaoling Capital? Not satisfied or dissatisfied.

After Gree Electric threw out the intention of equity transfer, Hopu Investment was also very interested in this part of the equity besides Gaoyou Capital, but in the end Gaoyou Capital won.

When asked if he was satisfied with the equity transfer plan, Dong Mingzhu responded that this should be asked to Zhuhai SASAC.

There have been rumors before that the negotiations between Gaochun Capital and Gree management were not smooth. Dong Mingzhu responded: "Any negotiation is not smooth. If it is smooth, it will not be called negotiation." When asked if she was satisfied with the plan, Dong Mingzhu responded: "It is not satisfied or dissatisfied."

When asked how Gree Electric will cooperate or cooperate with its new shareholder, Gaoyan Capital, Dong Mingzhu replied that "at least I haven’t seen it now", and she further said, "If one capital can solve the problems of enterprises, how can we see that so many capitals are exploding today? Therefore, it is not a capital to support the development of enterprises, but the innovation of enterprises to support development. "

Gree Electric business segment readjusted.

Throw out the new strategy of "Internet of Everything" Gree mobile phone released for three generations.

On the same day, Gree Electric released the "Internet of Everything" strategy, and for the first time demonstrated a complete set of intelligent connected home appliances controlled by intelligent voice.

Gree staff demonstrated how to control refrigerators, washing machines, rice cookers, range hoods and other household appliances by voice with Gree IOT air conditioners and Gree IOT mobile phones as entrances.

Dong Mingzhu also personally released Gree Electric’s third-generation smart phone at the scene. On-site PPT shows that Gree’s third-generation mobile phone adopts a 5.99-inch full HD full screen, emphasizes the night shooting algorithm in taking photos, has intelligent IOT buttons, and controls household appliances by voice.

Dong Mingzhu said that every Gree third-generation mobile phone can directly open the "micro store in Dong Mingzhu". "With Gree’s mobile phone, you should buy Gree’s products, otherwise I will remember you."

There are also many controversies about Gree making mobile phones, but from Gree Electric, mobile phones are just an entrance to Gree’s smart home strategy.

Gree Electric has also publicly released four international leading technologies that have been identified-key technologies and applications of rare earth-free reluctance main drive motor system for new energy buses, high-efficiency reluctance variable frequency scroll compressor technology, high-performance linear servo motor and driver, and high-efficiency pneumatic suspension centrifugal compressor.

The latest information displayed in Gree Electric Exhibition Hall shows that Gree Electric’s business has been re-divided into two parts, one is consumption and the other is industry. Previously, Gree Electric’s four business segments included air conditioning, household appliances, communications and intelligent equipment. This also means that the first three sectors are now merged into the consumer sector, highlighting the overall smart home; Intelligent equipment has expanded into the industrial field.

Dong Mingzhu also confirmed the adjustment of the company’s business sector in the interview. She said that the consumer sector is the business that Gree started, and the industrial sector is the heavy weapon of the country. There is no conflict between the two. "Without high-end equipment, you can’t make perfect consumer products, and you won’t be biased."

"The most beautiful reading sound" sounded in front of the Red Building of Peking University.

  (Reporter Zhang Enjie) "With the youth of me, we will create a youth family, a youth country and a youth nation & HELIP; …” "Youth is like the early spring, like the morning sun, like the budding of a hundred flowers, like the new development of a sharp sword in Xi … …” On August 29th, recitation artists Kang Zhuang and Guo Kaimin stood together in front of the Red Mansion of Peking University, and after a hundred years’ time and space, they read the classic quotations of Li Dazhao’s Youth and Chen Duxiu’s Youth with deep affection, bringing the readers back to that passionate awakening era, and officially launched the "Meeting the Party’s Twenty Themes Reading Activities".

  Sponsored by the Propaganda Department of the Beijing Municipal Committee of the Communist Party of China, the reading activity is based on the theme of "Striving for a New Journey and Building a New Era", and is divided into three sections: the reading demonstration activity with the theme of "the most beautiful reading sound", the book exhibition and promotion activity with key themes, and the special promotion activity of the digital reading column of "Reading Beijing, Reading China and Looking to the Future".

  On the same day, General Jin Yinan told "Why China" at the Red Chamber of Peking University. He pointed out that in today’s thrilling world, only history can make us face reality without feeling scared. "By learning to read and be familiar with history, we can broaden our horizons, enhance our confidence and improve the strength of our personality. Therefore, reading is not just a pastime after a meal, it is as simple as adding some talk. "

  It is worth mentioning that the reading leading plan of "the cradle of the Party" was also released at the event site, and the initiative of reading books such as "Striving for a New Journey and Building a New Era" was put forward. In addition to this launching activity, the theme reading demonstration activity of "The Most Beautiful Reading Sound" will focus on celebrating the 20th National Congress of the Communist Party of China, and four theme reading activities will be held successively, inviting industry celebrities to read books related to the construction of "Four Centers" in Beijing.

  It is understood that major bookstores, key entity bookstores and e-commerce platforms in Beijing will set up special counters to display and sell key books in a centralized way, and all relevant units and districts will also organize and carry out a variety of reading activities on the theme of "Celebrating the 20 th National Congress" in an orderly manner, and hold lectures and knowledge contests to create a good atmosphere for the party’s 20 th National Congress victory.

  In addition, digital reading enterprises will set up special columns to promote the Party’s innovative theoretical reading materials, the book list with the theme of "Striving for a New Journey and Building a New Era", China’s good books, good books reflecting the achievements in the construction of the national cultural center and the development of the capital, excellent online literature and digital reading. Through a variety of forms throughout the year, we will lead the citizens to enjoy a reading feast in the atmosphere of cultural Beijing and scholarly China.

  Photography/reporter Yuan Yi

  Coordinator/Liu Jianghua

Getting out of the misunderstanding of labor education practice: "gamification" can’t gain labor interest

  Bright pictures/vision china

  [thoughts]

  editorial comment/note

  Labor refers to the activity that people create material wealth and spiritual wealth necessary for their own survival and development through their own hard physical or mental efforts. In the new era, labor education has been picked up again, and schools have gradually begun to jointly carry out labor education practice with society and families. But in reality, labor education is often reduced to a simple task in daily teaching, a simple physical education, skill learning, and even alienated into entertainment, punishment and domestication. This paper holds that the lack of understanding of the connotation of labor and labor education still leads to some misunderstandings in the practice of labor education, such as the "servitude" of cognitive mental work that makes learning and labor oppose each other, the "play" that replaces the real pleasure of labor, and the lack of continuity in labor education, which needs serious reflection based on the connotation of labor education, and has certain practical pertinence, hoping to bring inspiration to readers.

  1, learning "servitude" put learning and labor in opposition.

  In recent years, labor education has been promoted to the same position as moral education, intellectual education, physical education and aesthetic education, so some schools have vigorously carried out labor education practice. Some open up schools to build farms and guide students to carry out productive labor practice; Some combine social resources and rely on labor education practice bases to organize students to experience labor. Social practice activities of learning agriculture and learning industry are carried out regularly every year in many places. However, while increasing the opportunities of labor experience, we will find a conventional concept that students’ daily study is not labor. This is really worth reflecting on. Isn’t learning itself labor?

  In fact, learning itself is also a kind of labor, and learning is cognitive mental labor. Soviet educator Suhomlinski believes that "labor education begins when students sit behind desks and study. Desk is the most complicated machine tool, which makes children, teenagers and teenagers feel that it is shameful to be careless, and laziness and idleness are sad. It is the most difficult thing for students to establish this understanding in education". Learning is a kind of labor that promotes the combination of wisdom and hands’ efforts. In this labor, learning is labor, while knowledge is the result of labor efforts. Under the background of digital labor era, the function of labor gradually turns to the existential function of realizing personal self-worth and obtaining the sense of value and meaning of existence. From this perspective, completing labor outside of learning may not be able to obtain more sense of value and existence than learning process.

  If learning is labor, why talk about labor education now? Why didn’t the mental work, which occupies the main position in students’ life at present, achieve the purpose of labor education? Why do schools often oppose mental labor and productive labor, and think that too much emphasis on intellectual development leads to insufficient labor experience? This is because the mental work of learning is alienated, and learning has been externalized as "labor".

  To recognize that learning is externalized as "labor", we need to trace back the essence of learning, a mental labor, and re-examine the current learning process of students. From Marx’s definition of labor, we can see that labor is firstly a process between man and nature. In the process of material exchange with nature, people increasingly realize the common attributes of things and phenomena, and find the regularity and connection between them, while mental labor is expressed in the form of representation, concept and reasoning. Learning this mental work ultimately points to scientific understanding of things, which is also an essential attribute for learning to become mental work. At present, students’ learning has gradually become "externalized labor" pointed out by Marx. Marx said in the Manuscript of Economics and Philosophy in 1844: Labor is an external thing for workers. In labor, he does not affirm himself, but denies himself. Instead of feeling happy, he feels unfortunate. Instead of freely exerting his physical strength and intelligence, he makes himself physically tortured and mentally destroyed. Once the external force stops, he will escape from labor like a plague. This exposition of externalization of labor seems to be just right to describe the study of today’s students. Students’ study is not to scientifically understand reality, but to pursue external material needs. The "tearing books after the college entrance examination" repeatedly exposed by the media reflects the students’ escape from this externally imposed task. Therefore, learning is no longer real labor, and it no longer has the function of liberating physical strength and intelligence.Instead, it becomes "hard labor", so it has little effect on improving students’ labor literacy.

  2. "Gamification" makes students lose their interest in labor.

  Corresponding to the fact that learning has become "hard labor", other forms of labor education that are gradually emerging show a trend of "gamification". Some schools carry out interesting and wonderful labor activities to attract students, and some schools integrate labor education into spring outing. On the one hand, this can improve students’ enthusiasm for participating in labor, but on the other hand, we need to pay attention to avoid blurring the difference between labor and games. Labor is the process of externalizing oneself, while game is the process of internalizing reality. The fuzziness of the difference between labor and games is more obvious in the digital age. Digital labor blurs the time-space boundary between entertainment and work, and dispels the traditional antagonistic relationship between play and labor.

  Labor is a serious process of giving, and the joy of labor lies in creation. This kind of giving also explains the self-externalization of labor. Students devote their physical strength and intelligence to the labor process and gain certain results. The pleasure that students feel in their work is the pleasure of creating things because of self-sacrifice, not fun. There is a difference between labor and games. Games can naturally bring satisfaction to children, but labor itself has no interest in children, so the interest in labor needs to be cultivated and developed consciously. The "gamification" of labor makes many activities look interesting, but there is no labor in essence, and students can’t gain interest in labor. Suhomlinski believes that the interest in labor should be manifested as "they realize that they can act on nature, make plants give fruits, and use tools to process wood or metal into needed shapes". Therefore, in the practice of labor education, we need to judge whether the interest in the labor process comes from giving and creating, or is interfered by other factors such as gamification.

  The contribution in the process of labor can cultivate positive labor values and make students love the working people and respect the fruits of labor. At the end of the 19th century, a "new" school appeared in France to train people engaged in "advanced knowledge occupations". In this school, students treat manual labor just like games and sports, because they don’t have to live by manual labor in the future. Although this school is located in the countryside, the students are far away from farmers’ lives. Although they are also working, they can’t really understand and study various social relations. Rousseau believes that only by taking part in labor in person and understanding all its complexity and arduousness according to experience can students judge the social significance of a production department in the future. Therefore, if we don’t regard labor as a serious process, we can’t cultivate our feelings for the working people, and we can’t cultivate our appreciation for the obtained survival materials.

  3. Labor education stays in experience and ignores daily self-service labor.

  At present, the labor practice of studying industry and agriculture in some areas is vigorously carried out, and an institutionalized labor experience system is gradually formed based on the construction of learning industry and agriculture bases. However, the persistence of these activities is worthy of attention. Most schools spend one week each semester leading students to experience labor, but they only stay in the experience once each semester, and there is a lack of cohesion between the activities, which is easy to make the labor experience become a casual entertainment. What’s more, some schools organize students to pull weeds in wasteland, and students regard pulling weeds as a kind of hard labor. This kind of labor experience of "working without teaching" deepens students’ rejection of manual labor. Therefore, the experience of labor must be complete, so that students can see the results of labor and feel satisfied with the achievements they have made through their own labor. If we just stop at pulling weeds without letting students experience the significance of pulling weeds for the growth of saplings, it will be difficult for this labor experience to play its due role. To lead students to plant wheat seedlings, we should let them see the process of wheat seedlings growing, heading and harvesting, and even let them see the process of wheat grains turning into food. At this time, the sense of pleasure comes not only from obtaining external products, but also from experiencing the sense of value and existence of labor.

  In fact, daily self-service labor is just the way to implement the principle of continuity of labor education. However, these are often ignored in schools and families. Schools spend time and energy to organize off-campus labor practice, but at noon, catering staff bring students lunch to the classroom, "depriving" students of the opportunity to experience self-service. The relationship between man and self is at the core of the three attributes of man, which also means that students’ self-service labor plays a vital role in students’ all-round development. Self-service labor can be regarded as the beginning of labor education. No matter what kind of productive labor he is engaged in in in the future, self-service will become his obligation and habit, and it is also the habit of cultivating people to observe discipline, meet their personal needs by doing it themselves, and form the habit of respecting others. When students get food effortlessly, it is difficult to ask them to respect food and labor.

  4. Strategies and suggestions for getting out of the misunderstanding of labor education practice.

  "If there is labor, there may not be education". Labor needs to satisfy three relational attributes, namely, man and self, man and nature, and man and society. The basic contents of labor are: self-service labor, productive labor and social welfare labor. Labor education is a practical activity based on physical labor and material production labor, exploratory innovation labor and artistic aesthetic labor, which is manifested in independent life in family life, practice and hands-on operation in study, public welfare activities in society and various professional labor. Therefore, the strategy to get out of the misunderstanding of labor education practice is to balance people’s different forms of labor demand through diversification.

  First of all, set up a cohesive and comprehensive labor education course. Dewey once said in The Waste of Education that all aspects and stages of education lack the necessary connection and cohesion with each other, which leads to conflicts and even negative effects. Similarly, in order to avoid the waste of education caused by labor education staying at the experience level, the labor education curriculum needs to pay attention to the cohesion of labor content and skills, which is reflected in the cohesion of curriculum content and the cohesion of education system. In terms of course content, it is necessary to set up labor courses that echo and connect properly according to the needs and characteristics of students of different classes and grades. In the education system, it is necessary to consolidate the skills and concepts of labor education through the cooperation between family and society. Schools can encourage students to find service jobs at home, take the initiative to participate in housework, and learn some labor skills. In addition, the content of labor curriculum also needs to take into account three basic labor education contents, namely, self-service labor, productive labor and social welfare labor.

  Secondly, change the concept of labor education of parents and educators, so that parents and educators can establish labor education awareness. The promotion of the cooperative mechanism between labor educators and schools puts forward higher requirements for teachers and parents’ awareness of labor education. For example, some schools will arrange "homework". If teachers and parents can’t pay attention to it, the effect will be greatly reduced. In order to avoid staying in the curriculum, labor education needs to enhance the awareness of teachers and parents. On the one hand, it is necessary to interpret the connotation, function and significance of labor education in combination with the development of the new era. On the other hand, it is necessary to change the concept of labor education through necessary education and training, so that they can voluntarily carry out and cooperate with the development of labor education activities.

  Finally, actively develop creative forms of labor and promote the combination of physical strength and brain power. Creative labor enables students to use the power of wisdom in physical labor, realize the unity of "internal thinking" and "external doing", and thus experience the happiness of labor. Wang Shaoliang, a scholar, believes that the labor values of contemporary teenagers have changed from "labor glory" to "labor happiness", that is, from "a kind of praise obtained from the outside through labor achievements" to "confirmation and affirmation of an essential force from their own labor achievements". Therefore, the development of school labor activities can not stay in simple physical labor, but needs to develop challenging creative labor that can show students’ physical and mental potential. Suhomlinski’s "creative labor theory" also points out that the content of labor education should be enriched with enough knowledge, abundant wisdom and refined talents.

   (Author: Ning Bentao Feng Linlin, respectively, professor of the Department of Education, Department of Education, East China Normal University, researcher of the Institute of Basic Education Reform and Development; Master student, Department of Education, East China Normal University)

Football News: Taishan will win the second place in the U21 League. In the final round, four teams will compete for the remaining place for the second place.

Live broadcast: On November 3rd, in the 21st round of U21 League, Shandong Taishan U21 team defeated Shanghai Harbour U21 team 2-1, locked in the championship one round ahead of schedule, and got the qualification to participate in the 2024 season B. According to "Football News", in the final round, there were four teams competing for the remaining one B spot.

According to the rules, the top two players in U21 League this year won the number of places in China B, but the rules on registration, promotion and demotion have not been finalized. After this round, Taishan scored 45 points, Haigang scored 40 points, Dalian scored 39 points, Rongcheng scored 39 points and Shenhua scored 38 points. Taishan U21 team has won the championship ahead of schedule and successfully rushed to B, while the four U21 teams of Haigang, Dalian, Rongcheng and Shenhua all have hope of rushing to B in the final round.

At present, the situation in the seaport is the best. If you win, you will get the qualification of B. If you draw, you need another game and it will be a draw. If you lose, you will miss B.: If Dalian people win and the harbor doesn’t win, they can get the qualification of B, and they will be tied or negative; If Rongcheng wins, and the harbor doesn’t win, it will get the qualification of B, and it will be flat or negative; If Shenhua wins and Dalian people draw with Rongcheng, they can get the qualification of B.

(Tiger)

CINITY, the exclusive screening of Avatar: The Way of Water by China Film, won the CineEurope Special Technology Achievement Award.

  On June 23rd, at the CineEurope held in Barcelona, Spain, a high-tech film system with independent intellectual property rights in China — — CINITY of China Film made a shocking appearance, and the organizers of the European Film Expo specially awarded CINITY Special Technology Achievement Award of China Film.

CINITY, the exclusive screening of Avatar: The Way of Water by China Film, won the CineEurope Special Technology Achievement Award.

  During the Expo, CINITY of China Film showed a brand-new clip of Avatar: The Way of Water, the second sci-fi film in the Avatar series directed by James Cameron, at the Barcelona International Convention Center (CCIB). The clip was exclusively screened by CINITY of China Film, and it has high-tech specifications such as 4K/3D/ high frame rate. At the same time, CINITY’s high-tech projection technologies, such as high brightness, high dynamic range, wide color gamut and immersive sound, are integrated to present a perfect audio-visual experience, allowing the on-site guests to immerse themselves in the mysterious dreamland of Avatar: The Way of Water.

CINITY, the exclusive screening of Avatar: The Way of Water by China Film, won the CineEurope Special Technology Achievement Award.

  Jon Landau, producer of Avatar: The Way of Water.

  "The guests present today all said that they had gained an unprecedented viewing experience." Jon Landau, the producer of Avatar: The Way of Water, said after the clip presentation, "Director James Cameron and I both hope that our guests can see the best presentation of the film. Avatar: The Way of Water was shot in 3D, 4K and high frame rate, and director Cameron used new technology and said it was ‘ Designed for the biggest screen and the most immersive 3D effects ’ . Therefore, in the choice of CineEurope projection system, we also hope to truly restore the director’s creation and present the team’s efforts to the audience to the greatest extent. CINITY’s screening technical specifications and film presentation effects are world-leading, and I am very grateful to CINITY for its support. "

CINITY, the exclusive screening of Avatar: The Way of Water by China Film, won the CineEurope Special Technology Achievement Award.

  In this regard, Fu Ruoqing, founder of CINITY and vice chairman of China Film, said: "We are honored to cooperate with Walt Disney Company. Avatar: The Way of Water is a film that is highly anticipated by audiences all over the world. I am very proud to show the perfect side of this film to Barcelona audiences with CINITY technology in 4K/3D/ high frame rate specifications at the European Film Expo, and I look forward to more audiences enjoying its most beautiful picture in the future."

  At this European Film Expo, CINITY of China Film not only won favorable comments from the audience, but also won the Technical Award of Achievement issued by the Expo. The organizer of the European Film Expo said that awarding this award is a recognition of the breakthrough made by CINITY of China Film as the core screening technology and its contribution to leading the film industry into an unprecedented new era of viewing with high-tech film technology.

CINITY, the exclusive screening of Avatar: The Way of Water by China Film, won the CineEurope Special Technology Achievement Award.

  It is reported that CINITY Hi-tech film system was launched in 2019. It is China’s own brand and has core independent intellectual property rights. It creatively integrates the high technologies in the seven film projection fields of 4K, 3D, high brightness, high frame rate, high dynamic range, wide color gamut and immersive sound, which makes the film clearer, more colorful, smoother, richer in details, more coherent in action, more realistic in sound and greatly improved. Through the breakthrough of key technologies, it is the highest technical specification and the best film display form in the field of film projection to promote the formation of the whole high-tech film industry chain from shooting, post-production to distribution and projection.

  By June 2022, CINITY had produced and released 127 films, including 12 high frame rate films. China has installed 70 cinemas, and has reached cooperation to install more than 80 cinemas, covering domestic mainstream cinemas and deployed in more than 30 cities.

  In the future, CINITY of China Film will be promoted and applied on a global scale, deepening international exchanges and accelerating the process of internationalization. While building a wider distribution scope and a more advanced projection system, CINITY will also invest in the production of high-tech films. China’s films will speed up the layout on the road of developing high-tech format films, make continuous efforts, build an industrial chain of high-tech format films, serve the creation and audience, and contribute to the goal of becoming a powerful film country. (Reporter Kong Xiaoping)

The latest report in the United States shows that the quality of Boeing 737Max aircraft is serious, and 33 of 89 audits failed.

(Observer Network News) According to the disclosure on March 11th, local time in The New York Times, USA, the FAA found that Boeing "has many problems in quality control" after six weeks of audit. Among all 89 audits, Boeing passed 56, 33 failed, accounting for more than 37%, and 97 possible irregularities were found.

The quality problem is serious, and the qualified rate of fuselage audit is less than 50%

According to the inspection report of Federal Aviation Administration (FAA) cited by The New York Times, there are dozens of problems in the manufacturing process of Boeing 737Max aircraft manufacturers and their main suppliers.

After the Mense crash of Alaska Airlines Boeing 737MAX in January, the FAA began to investigate this type of aircraft. The survey results show that 56 of 89 audit subjects passed the audit, 33 failed the audit, and the failure rate exceeded 37%. During the audit, there were 97 suspected violations.

In the investigation of 737Max fuselage contractor Spirit AeroSystems, the report showed that seven audits were unqualified, which was unreasonable by more than 50%. It is mentioned in the report that the personnel of the air safety agency have witnessed the mechanic of Spirit company using the hotel room card to check the plane’s Mense. In addition, the FAA personnel also saw the mechanic of Spirit company smearing soap liquid on the door plug as a "lubricant" during fitting, and then cleaning Mense with a wet cheese cloth.

Boeing’s factory in Leighton, Washington (pictured from Reuters)

In an audit of Mense components by Spirit Company, the investigators found five problems, one of which was that "no evidence was provided to prove that the minor design changes of the aircraft had been approved by the FAA". Another audit that Spirit failed involved the installation of Boeing 737Max in Mense. In this audit, investigators expressed their concern about the Spirit technicians who performed this work because the company "failed to clearly understand the knowledge needed to implement this process".

Other audits that Spirit failed include those involving cargo doors and the installation of cockpit windows. In this regard, Spirit spokesman Joe Buccino said that the company is "reviewing all identified non-compliance behaviors to correct them".

In the audit of Boeing, the auditors found that many problems of Boeing were not following the "approved manufacturing processes, procedures or instructions", and other problems involved the quality control of Boeing aircraft.

The FAA also rated Boeing employees’ understanding of the quality control process. In the survey, they interviewed six company engineers and graded their answers, with an overall average score of only 58%.

According to the report, the FAA has deployed as many as 20 investigators in Boeing and about 6 investigators in Spirit.

It is worth noting that Spirit AeroSystems was spun off from Boeing Commercial Aircraft Company in 2005. Boeing said this month that it is in talks to acquire Spirit.

In March, there were four vicious accidents, and Boeing whistleblowers committed suicide.

Recently, Boeing’s security issues have once again attracted attention from all walks of life.

Following the fall of Boeing 737Max 9 Mense in January, several people on board were injured, the engine of Boeing 747-8 cargo plane caught fire over Miami, and the tire of Boeing 757 fell off. Since March, Boeing has had four consecutive vicious accidents. At the beginning of the month, there were three accidents including engine fire, tire falling off and skidding off the runway.

On the 11th local time, a Boeing 787-9 caused a "strong vibration" due to "technical problems" during the flight. At least 50 people were injured in the vibration, and then the plane landed at Auckland airport.

The New Zealand Traffic Accident Investigation Committee said on Tuesday that it was detaining the cockpit voice recorder and flight data recorder (black box) of the Boeing 787-9 plane that injured 50 people on the 11th. The black box will provide more information about the flight trajectory and communication between pilots.

On March 9, local time, the government of South Carolina confirmed that John Barnett, a 62-year-old former employee of Boeing, who publicly questioned the problems in Boeing’s production line, was found dead in the car.

In 2010, he began to work as a quality manager at the Boeing factory in North Charleston, and retired in 2017. In 2019, barnett reported that the overworked employees of his Boeing factory in South Carolina deliberately installed substandard parts on the aircraft on the production line. A few days before his death, the old employee who had worked for Boeing for 32 years was still busy with his lawsuit against Boeing. He was found dead because he failed to provide testimony on the 9th.

Lawyer barnett used "alleged" to describe his client’s statement of "shooting himself".

This article is an exclusive manuscript of Observer. It cannot be reproduced without authorization.

[See you at 8 o’clock] Official announcement! Corruption-related personnel are not allowed to be released on parole for this behavior.

  At 8 o’clock every day, CCTV will sort out the big and small things that happened around us within 24 hours.

  [Follow] Official announcement! Corruption-related personnel are not allowed to be released on parole for this behavior.

  According to the website of the Supreme People’s Court, the Supreme People’s Court recently issued the Supplementary Provisions on the Specific Application of Laws in Handling Cases of Commutation and Parole. The Supplementary Provisions make it clear that criminals who were originally state functionaries who were sentenced for corruption and bribery, refused to plead guilty and repent, or did not perform or did not fully perform the property judgment in the effective judgment, were not granted parole, and generally did not receive commutation.

  [domestic]

  The deflagration accident of Fangda Special Steel has caused 2 deaths and 8 injuries. Investigation on the listed supervision accident in Jiangxi Province

  According to the Jiangxi Provincial Emergency Management Department, as of 13: 00 on May 31, the deflagration accident of Fangda Special Steel Company in Nanchang has caused two deaths and eight injuries (six of them are in critical condition). According to the relevant laws and regulations, the Nanchang Municipal Government has set up an accident investigation team to carry out accident investigation, and the Jiangxi Provincial Safety Committee Office has listed and supervised the accident investigation, and will interview the person in charge of Fangda Group Industrial Co., Ltd. in the near future.

  The new version of foreigner visa, group visa and residence permit is so long!

  The State Administration of Immigration issued an announcement on May 31, deciding to enable the new version of foreigners’ visas, group visas and residence permits. The exit-entry administration departments of public security organs nationwide began to issue the new version of foreigners’ visas, group visas and residence permits from June 1, and stopped issuing the current version of foreigners’ visas, special economic zone tourist visas, group visas and residence permits. Special economic zone tourist visa business uses the new version of the visa to make and issue.

  Nearly 100 ancient tombs have been found in Tsinghua University, but no funerary objects have been found yet.

  On May 31st, it was reported that an ancient tomb was discovered during the construction of the northern side of Six Religions in Tsinghua University. According to Tsinghua University’s news about WeChat WeChat official account, 87 tombs of Ming and Qing Dynasties and 5 tombs of Han Dynasty have been discovered this time. The excavation work is not over yet, and the exact figures need to be further discovered and verified. As the funerary objects have not been found yet, the specific archaeological value has yet to be confirmed. According to the on-site staff, in addition to the bones, there are items such as copper coins at the excavation site.

  Beijing: The number of smokers has decreased by 200,000 after the implementation of the tobacco control regulations for four years.

  May 31st is the fourth anniversary of the implementation of the Regulations on Smoking Control in Beijing. Since the implementation of the Regulations, Beijing 12320 hotline has received 50126 complaints and reports on tobacco control, and the top three places for complaints and reports are office buildings, restaurants and entertainment places, accounting for 40.3%, 24.5% and 9.8% of the total complaints respectively. The rate of illegal smoking in public places decreased from 34.4% to 4.9%, a decrease of 85.8%; The adult smoking rate in Beijing decreased from 23.4% in 2014 to 22.3%, and the number of smokers decreased by 200,000. The exposure rate of secondhand smoke decreased from 35.7% to 20%, a decrease of 15.7 percentage points, and the number of people exposed to secondhand smoke decreased by 2.8 million.

  Beijing’s first bicycle lane opens

  On May 31st, the first bicycle lane in Beijing was put into trial operation. Bicycle lanes are totally enclosed, with a total length of 6.5 kilometers. They start from Huilongguan in Changping District in the east and end at Houchangcun Road in Haidian District in the west. There are 8 entrances and exits, and the speed of cycling does not exceed 15 kilometers per hour. Pedestrians, electric bicycles and other vehicles are prohibited from entering. After opening, it will directly serve about 11,600 commuters along the line, effectively alleviating the traffic pressure between Huilongguan and Shangdi on Metro Line 13 and improving the regional green travel environment.

  Li Guowen, former member of the Standing Committee of Tianjin Municipal People’s Congress, accepted disciplinary review and supervision investigation.

  According to the website of the State Commission for Discipline Inspection of the Central Commission for Discipline Inspection, Li Guowen, former member of the Standing Committee of Tianjin Municipal People’s Congress, is under disciplinary review and supervision investigation.

  In 2018, the top ten online terms in China were announced, and koi fish, Buddhism and skr were selected.

  On the morning of May 31, the Report on Language Life in China (2019) released by the Ministry of Education and the State Language Commission showed that ten words, such as koi fish, Buddhism and skr, became the annual online terms in 2018.

  These top 10 online terms include: koi fish, Bar Jing, skr, Buddhism, Confirmed Eyes, Official Announcements, C-position, earthy love words, peeling, burning my calories. When explaining "skr", the report pointed out that the word originally refers to the rubbing sound of automobile tires, and then it quickly became popular with the frequent use of a pop singer in variety shows, and was imitated and spread by netizens. When you encounter something recognized, you will use skr to express your admiration and praise.

  [international]

  Eleven people have been killed and six injured in a shooting in Virginia, USA.

  On Friday afternoon local time, a shooting incident occurred in Virginia Beach, Virginia, USA, killing 11 people and injuring 6 others. It is reported that the gunman has been killed by the police.

  Caressing Nara deer or causing it to be "abandoned" conservation groups: don’t touch it!

  According to Japanese media reports on May 31st, Nara Park, a famous tourist attraction in Japan, is now at the peak of deer birth. Local conservation groups have called for the doe to stop taking care of the deer if it is infected with the smell of people, so if tourists see the deer, "don’t touch it."

  American man sued Delta Air Lines for being bitten by a dog on the plane and leaving a scar on his face.

  According to US media reports, Marlin Jackson, a man from Alabama, filed a lawsuit against Delta Air Lines on May 31, claiming that in 2017, an emotional support dog of a passenger of Delta Air Lines attacked him on a flight.

  According to reports, litigation documents show that on the flight from Atlanta to San Diego, Jackson was sitting in a window seat, and a passenger’s "big dog" suddenly attacked him, bit his face and forced him to cling to the window of the plane. He is suing the airline for an unknown amount, claiming that the company failed to ensure his safety and allowed the dog to board the plane without proper restraint.

  Nearly half of Chileans rely on self-study to watch American TV plays in English.

  According to foreign media reports, the "Global English Learning Report" conducted by Yuguan Survey Network shows that 49% of Chilean respondents teach themselves English by watching American TV shows. The report said: "In developing countries, such as Indonesia and Chile, people are more inclined to master some English skills through self-study." In Germany, 93% of the respondents learn English through school teaching.

  Society

  The driver refused to take the drunk passenger and was responded by dripping.

  Recently, a drip driver refused to carry a drunk passenger and was beaten, which triggered a heated discussion. On May 31, Didi explained that on the evening of the 27th, Master Qin, the driver of Didi in Zhaoqing, Guangdong Province, was beaten by five drunken passengers during the service and was injured and hospitalized. According to the audio and video evidence, the driver refused to take the taxi, and Didi would permanently stop providing taxi service to the taxi driver. At present, Master Qin is in stable condition and is recovering.

  In 2019, the mountaineering season on the China side of Mount Everest ended, with 241 people reaching the summit, 2 rescued and 2 killed.

  The press conference on Mount Everest in Xizang Autonomous Region in 2019 was held in Lhasa on May 31st. The People’s Government of Xizang Autonomous Region released the relevant data of the climbing season on the China side of Mount Everest in 2019. A total of 241 people climbed the world’s highest mountain from the north slope of Mount Everest in Xizang Autonomous Region, China, and two foreign climbers were rescued in distress and died due to physical discomfort.

  The Guangdong police’s Hurricane 2019 operation destroyed more than 300 criminal gangs in five months.

  On May 31st, the press conference held by the Guangdong Provincial Public Security Department reported that the Guangdong police’s "Hurricane 2019" special campaign launched 34 "Hurricane" cluster campaigns from January to May, destroying more than 300 criminal gangs and arresting more than 5,400 criminal suspects, successfully cracking a number of criminal cases, effectively driving the province’s criminal alert and criminal filing down by 16.4% and 9.6% respectively.

  A fire broke out in a KTV building in Changchun.

  On the morning of May 31, a fire broke out in a KTV building near the intersection of Changchun Street and Dajing Road in Changchun City. At 10 o’clock in the morning, firefighters were carrying out fire fighting work. The building where the fire broke out was unrecognizable, and the fire was under control, but there was still an open flame in the building. It is not clear whether there are any casualties.

  [Sports]

  80 yuan also sent a cheering T-shirt to announce the highest fare for the national football warm-up match.

  Weibo, the official of China Football Team, announced the ticket price of the national football warm-up match in June. The highest price is only 80 yuan, and you can also get a cheering T-shirt.

  According to the information released by China Football Team Weibo, the tickets for this warm-up match are divided into three stages: 30 yuan, 50 yuan and 80 yuan, and all spectators who buy tickets for the match can receive a T-shirt for China team for free on the match day.

  [face]

  [Xia Gengen] The only boy wears a wedding dress to shoot graduation photo.

  Graduation photo, a special student of Northwest Normal University, became popular on the Internet, with a boy wearing a wedding dress and 28 girls wearing suits surrounding him. A group of special graduation photo popular networks in Northwest Normal University in Lanzhou, Gansu Province, have been dubbed by netizens as "the funniest graduation photo of the year". Xia Gengen, the hero in the photo, said, "We don’t want to be unconventional or eye-catching. We just want to leave a good memory for graduation photo in the class. As long as the students are happy, I am not afraid of other people’s opinions and ridicule. "

  [Wang Yongfeng] We must be in awe of nature.

  At the end of the climbing season on the China side of Mount Everest in 2019, Wang Yongfeng, Vice Chairman of chinese mountaineering association, told the climbers in an interview on May 31 that they must be awed by nature, and introduced chinese mountaineering association’s efforts to ensure the safety of climbers on Mount Everest. Besides, enjoying the process is more important than reaching the top.

  See you at 8 o’clock tomorrow!

  Editor: Zhu Xinyu

Sunshine beach is hidden! The death of a 7-year-old girl in Florida warns of the risk of "quicksand trap"

  Sunshine beach has hidden dangers! Recently, a tragedy occurred in Florida, USA: a 7-year-old girl accidentally fell into a bunker and was buried alive while "digging sand" on the beach. Experts reminded that similar accidents are not uncommon in the United States, and parents should be especially alert to the "quicksand trap" when bringing their baby.

Sunshine beach is hidden! The death of a 7-year-old girl in Florida warns of the risk of "quicksand trap"

  A 7-year-old girl fell into a sandpit while having fun at the beach, and was buried alive. Investigators are investigating the scene. Source: New York Post

  ABC reported on the 22nd that the tragedy happened on the beach in Lauderdale-on-the-Sea, a resort town in Florida, on the afternoon of the 20th local time. At that time, Si Long Mattingly, who was only 7 years old, and his 9-year-old brother dug up a pit nearly 1.5 meters deep. Soon, this unstable "fortification" suddenly collapsed and the brother and sister were buried in the bunker. Because my brother is tall, the sand just doesn’t reach his chest, while my short sister is swallowed up by the yellow sand.

  According to reports, the local resident population is only about 6,000, and there are no professional lifeguards on the beach. Although there were enthusiastic passers-by to rescue after the incident, it was too inefficient to dig sand only by hands and buckets, and the surrounding fine sand continued to flow into the bunker. By the time the rescuers dug out the little girl with a shovel, she had already lost her pulse and was declared dead shortly after being sent to the hospital. The report said that the parents of the brothers and sisters were nearby at the time of the incident.

  The death of "quicksand trap" is not a case. Medical records show that three to five minors die every year in the United States, including some "older children". In addition to the beach, it is also risky for children to play with sand in parks or their own homes. Last year, a 17-year-old young man in North Carolina was buried in sand. In 2022, there were also dangers in national parks in Utah and beaches in New Jersey. Two victims were 13 years old and the other was 18 years old.

  Experts say that leisure places like the seaside are easy for people to relax their safety awareness. Many people are keen on digging sandpits and building castles, but they have no idea about the weight and danger of sand. Experts suggest that the depth of the bunker should not exceed the height of the knee, and try not to be in the pit, because the structure of the bunker is very unstable and it is easy to collapse instantly, causing danger. For tourists who are exhausted, they must be backfilled before leaving, because even if it is only a barrel deep, it may be dangerous. (Liu Yuran)

[Editor in charge:

]

These actions hurt your knees more than running, and some people do them every day!

now

Exercise has become a "compulsory course" for many people every day.

And in many sports,

Running is deeply loved by many people.

Recently, a circle friend sent for help and said

There are all kinds of sayings about running on the Internet.

The most popular saying is that running will hurt your knees.

Is this really the case?

Zhao min

Peking University Third Hospital

Deputy chief physician of orthopedics

Does running really hurt your knees?

Improper running posture or excessive load is the most likely to damage the knee joint.

Incorrect running method exceeds the load of knee joint, which will easily lead to "running knee", which is a chronic overwork.

No matter ordinary people or athletes, they may encounter the problem of knee joint injury in sports, but the "running knee" only exists in the situation of knee overuse, which is related to personal sports and physical fitness.

Both sitting without running and high-intensity running can cause joint problems, and the prevalence rate is the lowest among people who run at leisure, so proper running is beneficial to joint health for ordinary people (non-athletes) as a whole.

Unscientific exercise is an important cause of knee injury. If you don’t warm up before running, it will have a huge impact on the meniscus and even cause comminuted fracture of the patella.

Incorrect running posture, too long exercise time, too high frequency and different physical qualities of individuals are all factors that cause knee joint injury.

Therefore, incorrect running methods or excessive use of knees will lead to knee injury, but you can’t stop exercising completely.

Action points:

Warm up for 5 ~ 10 minutes before jogging, and the duration of pure running is 30 ~ 60 minutes every day, so don’t care too much about the distance;

The body leans forward slightly, the arm swings naturally, and the forefoot touches the ground;

Keep the speed "breathing, heartbeat is slightly faster but you can talk normally";

Plastic ground, asphalt road, etc. are selected for the site, and cement ground is not recommended.

These movements hurt your knees the most.

Step 1 sit still for a long time

An internationally authoritative study once pointed out that the incidence of arthritis in fitness runners is 3.5%; For sedentary people, the incidence of arthritis is as high as 10.2%! Long-term sedentary articular cartilage will gradually lose nutrition and "starve to death". Therefore, proper exercise can prolong the life of the knee. But the premise is to master scientific methods and avoid unnecessary damage.

Step 2 climb mountains and stairs

Old people, overweight people and people with knee injuries had better crawl less. Don’t insist on climbing if your knees are uncomfortable.

When going up the mountain (stairs), the wrong posture can easily hurt the knee, and the knee will bear about three times its own weight.

When going down the mountain (stairs), the knee will not only bear the impact of the ground, but also increase the wear of the knee.

Therefore, it is not recommended to climb mountains and buildings as daily exercise.

Tip: There is a knee injury. When going upstairs, the good leg goes first, and when going downstairs, the bad leg goes first.

Step 3 jump rope

The risk of skipping rope to knee joint is mainly related to the venue.

Generally, the concrete floor downstairs in a residential area can’t provide an effective buffer for the impact force when skipping rope falls to the ground, and it is easy to hurt the knee for a long time.

Key points of skipping rope:

Choose plastic floor or cement floor to pave plastic mat;

When jumping, keep your feet close to avoid bending your knees greatly;

The take-off height is 2 ~ 4 cm to ensure that the skipping rope just passes through the soles of the feet;

Shake the rope with wrist strength and keep the big arm close to the trunk.

4. Riding a bike in the wrong posture

If you ride too hard, or take some wrong riding posture habits, it will also have certain health risks to your knees.

Action points:

The height of the seat is adjusted to: when the foot steps on the lowest position, the knee joint slightly bends about 170;

Hold your head high while riding, keeping your knees and toes facing forward;

Keep riding at a constant speed, and don’t suddenly increase the speed by force;

Exert force on the thigh and step on the pedal with the first third of the sole of your foot.

5. I don’t have exercise habits at ordinary times, and I suddenly run away.

For people who don’t have any exercise habits at ordinary times and sit for a long time every day, leg muscle strength is usually insufficient, and sudden long-term walking is easy to cause instability of knee joint position.

Suggestion: Try to avoid striding, don’t stretch your front legs too far, avoid tightening your legs or knees and step forward, so that your body can walk naturally, comfortably and moderately.

Step 6 sit cross-legged

When sitting cross-legged, the knee joint is in a state of flexion. Under the action of gravity, it will bear the sinking force, resulting in uneven stress on the inside and outside. Over time, the knee joint is also prone to deformation.

Suggestion: when you can’t help sitting cross-legged, bend only one leg at a time, try to be natural and comfortable, and don’t force your feet down, which can reduce the damage to your knees to some extent.

Step 7 squat for a long time

When the squatting posture is greater than 90 degrees, the compression of the medial knee joint will become larger, resulting in the wear of the medial patella.

Suggestion: Try to control the toilet time in squatting position within 3 minutes.

These symptoms appear in the knee joint.

May have suggested joint damage.

If you can’t remember your knee joint at all, first of all, it shows that it is healthy. When you start to pay attention to your knee joint, it may indicate that there are some problems with it.

Then there are probably two kinds of problems that often appear in our knee joint:

1. it hurts

This is the most common situation. Suddenly, I feel pain in my knee. The pain varies from light to heavy. Another is its position. If you touch your left knee with your palm, buckle the patella above your knee with the palm of your hand. After buckling it, when your thumb naturally droops, you can touch a gap. This is the gap on the inside of the knee. If this position is painful, you should be careful about meniscus or osteoarthritis. If this position is further up.

Step 2 make a noise

Sometimes there will be some noise in the knee joint, a crisp snap, without pain, which may be some physiological snap, such as synovial hyperplasia. If you have degenerative osteoarthropathy and arthritis, its noise is very characteristic, just like when you hold a handful of snow in winter, the snowball makes a creaking sound. This feeling of holding snow is a very typical manifestation of osteoarthritis, called bone rubbing sound.

You can protect your knees by sitting and lifting your legs.

The first method:

When the leg bends to 90 degrees, the calf and thigh are basically in a vertical state. At this time, you can slowly extend the leg from 90-degree knee flexion to straightness, and pause for 5~10 seconds. You should feel the muscles in front of the thigh, especially the muscles in the inner thigh, exerting force and straining, and then slowly relax it to the knee flexion position. This is the first time.

We can repeat this cycle for 20 ~ 30 times, and this is a group, and we can do 2 ~ 3 groups every day.

Note: If you feel tired the next day, it means that this intensity exercise is appropriate. If you feel relaxed after exercise, you may need to correct your movements or increase your strength and frequency.

The second method:

You can step on something under your feet. At this time, the angle of bending your knees is less than 90 degrees. Slowly straighten it, straighten it to the position of 0 degrees, keep it for 5~10 seconds, and do reciprocating training.

Leg-lifting in sitting position is suitable for both sick patients and healthy people. It is a very basic training, so everyone should develop such a habit, and its application scenario is very wide. You can do such a training whether you are in the office or on a business trip.

Note: If the joint is in the inflammatory stage of redness, swelling, heat and pain, you should rest instead of doing any strength training, even if it is mild, and you should wait until the inflammation is relieved, the symptoms are relieved, or even disappear before starting strength training.

These symptoms appeared in the knee joint.

May have suggested joint damage.

If you can’t remember your knee joint at all, first of all, it shows that it is healthy. When you start to pay attention to your knee joint, it may indicate that there are some problems with it.

Then there are probably two kinds of problems that often appear in our knee joint:

1. it hurts

This is the most common situation. Suddenly, I feel that my knee begins to hurt. The pain varies from light to heavy, and the other is its position. If you touch your left knee with your palm, use the palm of your hand to buckle the patella above your knee. After buckling it, when the thumb naturally droops, you can touch a gap. This is the gap inside the knee joint. If this position hurts, you really have to be careful. For example, there will be some problems like meniscus or osteoarthritis. If this position is higher or lower than the knee joint, it may come from the ligament, so we judge it according to the painful part.

Step 2 make a noise

Sometimes there will be some noise in the knee joint, a crisp snap, without pain, which may be some physiological snap, such as synovial hyperplasia. If you have degenerative osteoarthropathy and arthritis, its noise is very characteristic, just like when you hold a handful of snow in winter, the snowball makes a creaking sound. This feeling of holding snow is a very typical manifestation of osteoarthritis, called bone rubbing sound.

You can protect your knees by sitting and lifting your legs.

The first method:

When the leg bends to 90 degrees, the calf and thigh are basically in a vertical state. At this time, you can slowly extend the leg from the 90-degree knee bend to the straight, and pause for 5~10 seconds. You should feel the muscles in front of the thigh, especially the muscles in the inner thigh, exerting force and tightening, and then slowly relax it to the knee bend position. This is a time.

We can repeat this cycle for 20 ~ 30 times, and this is a group, and we can do 2 ~ 3 groups every day.

Note: If you feel tired the next day, it means that this intensity exercise is appropriate. If you feel relaxed after exercise, you may need to correct your actions or increase your strength and frequency.

The second method:

You can step on a whole box of cans under your feet. At this time, the angle of bending your knees is less than 90 degrees. Slowly straighten it to the position of 0 degrees, keep it for 5~10 seconds, and do reciprocating training.

Leg-lifting in sitting position is suitable for both sick patients and healthy people. It is a very basic training, so everyone should develop such a habit, and its application scenario is very wide. You can do such a training whether you are in the office or on a business trip.

Note: If the joint is in the inflammatory stage of redness, swelling, heat and pain, you should rest instead of doing any strength training, even if it is mild, and you should wait until the inflammation is relieved, the symptoms are relieved, or even disappear before starting strength training.

Six things to prolong the service life of the knee

Knee joint should be used sparingly, and only by protecting it can its service life be prolonged;

Step 1 control your weight

Patients with knee arthritis caused by overweight account for a large proportion of the sick population. Losing weight can greatly reduce the burden on weight-bearing joints and reduce wear and tear.

2. Exercise with restraint

The healthiest exercise program for joints is: 30 minutes of moderate-intensity physical exercise every day, no less than 5 days a week.

Warm up before exercise, exercise and stretch properly. If you do strenuous exercise, warm-up time should not be less than 10 minutes.

When swimming, the body is basically parallel to the water surface, and the knee joint is basically free of load, so it is best for the knee joint. Freestyle and backstroke are more recommended to protect the knee joint.

3. Pay attention to joint warmth

Avoid cold and damp knees, and wear knee pads if necessary.

Step 4 supplement calcium

Especially women over 40. When osteoporosis occurs, joints are prone to illness.

5. Shoes should be suitable

Whether walking or other sports, you should choose a pair of suitable shoes. Sports shoes with elasticity, slightly thicker soles and slightly thicker heels are the best for joints.

6. Avoid continuously exerting force on joints.

Try to reduce squatting as much as possible. If you need to squat frequently, you’d better sit in a low position, such as sitting on a small bench. When sitting and standing for a long time, you should always change your posture to prevent your knee from being fixed in one posture and being strained.

Note: Don’t exercise easily when your knee hurts. If there is injury or pain in the knee, you should see a doctor in time and standardize the treatment. Consult a doctor and make a suitable recovery exercise plan according to your own situation and illness.

Knee pad tips

1. Improper running posture or excessive load is the most likely to damage the knee joint.

2. These actions hurt your knees the most: sedentary, skipping rope, climbing mountains and stairs in the wrong posture, riding a bicycle in the wrong posture, having no exercise habits at ordinary times, suddenly running away, sitting cross-legged and squatting for a long time.

3. These symptoms of knee joint may have indicated joint damage:

Pain: the gap inside the knee joint hurts, and there may be problems with meniscus or osteoarthritis;

Sound: Osteoarthrosis and arthritis will cause bone rubbing sound.

4. Sitting leg lifting is a basic training suitable for both sick patients and healthy people.

5. Extend the service life of the knee: control the weight, exercise with restraint, pay attention to joint warmth, supplement calcium, fit shoes, and avoid exerting force on joints continuously.