xwxq

　　2023—2024

　　Yuan Dynasty (1206-1368)

　　Healthy New Year.

　　dawn

　　Hi, 4.76 million WeChat official account circle friends.

　　New year’s day special planning is coming ~

　　Healthy New Year, healthy New Year.

　　Today is the last day of 2023.

　　How can we start a healthy life in the new year?

　　Xiao Huan specially invited

　　12 academicians, deans and professors

　　Work together to make suggestions for the healthy life of friends in the circle!

　　The fourth period is coming.

　　Let’s talk about "happy" fruits.

　　Xie Jianghui, Vice President of Chinese Academy of Tropical Agricultural Sciences

　　Will be a guest in our studio

　　What health advice will he bring?

　　Let’s take a look with the small circle ~

　　Bananas are the "five good students" in the fruit industry?

　　01

　　What are bananas?

　　Unknown advantages?

　　Advantage 1: Rich in carbohydrates.

　　Bananas are rich in various nutrients, especially carbohydrates, and are in the forefront of other fruits.

　　Carbohydrate is an energy substance, which can quickly replenish energy and sugar for the human body and restore the body function.

　　Advantage 2: tryptophan is rich in content.

　　The content of tryptophan in bananas is relatively high, which is an important component in the synthesis of protein and an important precursor for the synthesis of neurotransmitters.

　　Advantage 3: rich in vitamin B6.

　　Bananas are rich in vitamin B6, which is a necessary condition to produce dopamine.

　　Vitamin B6 is a key nutrient in the process of dopamine synthesis, which can help the nervous system to function normally and make us feel happy together with tryptophan.

　　Advantage 4: high potassium and low sodium

　　Banana is a kind of fruit with high potassium and low sodium, which is rich in potassium.

　　The high potassium content in bananas is helpful to maintain the physiological balance of the body and improve blood pressure. In addition to bananas, beans, fungi, peppers and other foods have high potassium content. Therefore, while eating bananas, we can also supplement some high-potassium foods appropriately, which is more conducive to our health.

　　Advantage 5: Replenish energy

　　Bananas have obvious effects in supplementing energy and enhancing endurance.

　　Not only athletes, but also other mental workers, including students, regularly eating bananas can not only replenish energy in time, but also promote the metabolism of brain cells.

　　02

　　Will bananas quickly increase sugar?

　　Dean Xie said that it is easy for diabetic patients to increase their blood sugar by ingesting glucose, but the sugar content in bananas is different. Sucrose ranks first, fructose ranks second and glucose ranks third, so diabetic patients can eat bananas appropriately according to their own physical conditions.

　　Bananas are also a staple food?

　　01

　　Can bananas be a staple food?

　　Dean Xie said that the variety of staple banana is different from the fruit-based variety in our country. The staple banana needs to be cooked before it can be eaten, which helps digestion and absorption.

　　02

　　What are the advantages of staple banana nutrition?

　　Dean Xie said that banana, a staple food, has a high content of resistant starch, which is suitable for processing into banana powder, banana slices, meal replacement food raw materials, etc. The content of resistant starch is about 40 times that of rice.

　　Resistant starch is not easily digested in the small intestine, which can help improve the body’s fat metabolism and sugar metabolism, and help diabetic patients control blood sugar. The latest medical research has proved that resistant starch has the function of protecting liver, and it has a good dietotherapy effect for patients with fatty liver. At the same time, the staple banana still has a certain satiety after eating, which is not only not easy to gain weight, but also slower than rice and white flour in raising blood sugar.

Special feature of 1905 film network As an audience, what content of a movie will you be attracted to first?Everyone will have their own answers.Perhaps the main lineup can attract audiences with the reputation of past works; Inductive posters posted everywhere can also be "brainwashed" and impressive; And take the film.ContentTrailer, relatively more concrete.After all, the trailer can more directly present a film’s style, plot and other effective information. Even many viewers learned about a movie through the film notice in the cinema, and silently planted grass.

Although in the eyes of many people, the trailer is just a propaganda material, which undertakes the function of advertising, for the staff, preview editing is the closest thing to the creation of film content among all kinds of propaganda materials at present.It seems that in many people’s cognition, the trailer is made by the director and the film editing team themselves. Of course, this situation does exist, but it is not entirely the case.

The so-called industry has specialization. With the development of China films, promotional materials companies are increasingly divided in the market, including poster companies and video companies, among which trailer companies, tidbits companies and short video companies are even divided. Of course, there are also many companies that can set foot in all the corresponding fields.Looking at the whole film circle, the trailer industry is still relatively young, and only full-time companies have been established since about 2010, with a development of more than 10 years. Nowadays, with the development of the film industry, the production of trailers has entered another track.

A heavier and shorter trailer

The word "preview cheating" often appears in some online comments. Obviously, these trailers have successfully deceived the audience into the cinema.

In other words, among the factors that affect the audience’s expected management of movies, trailers account for a huge proportion. A movie usually has more than four trailers, and those films in important periods such as Spring Festival and National Day have a greater demand for the number of trailers.

Among these trailers, which one is the most important?

The company "Youmingtang" has participated in other film projects. Co-founder Xu Wenbo told us that from the data given by various platforms at present, the final preview is usually the most clicked. "A big reason comes from that most viewers usually take the initiative to open a trailer to understand the film before considering buying tickets, and at this time, most of the tickets are recommended and displayed by the ticketing platform."

This phenomenon also makes the ultimate notice a "mountain" in the eyes of practitioners.

"It is not difficult to simply cut out the plot, but a good final preview needs to use colorful ideas and forms in a short time to make the plot catch the audience." Lin Mingtao, director of Hengye Film Video Center, pointed out the difficulties to us.

Liu Wenpu, the founder of Liuhe Century, who has participated in other projects, said that besides the final preview, the first preview is also not easy. "That is the first video material to meet, and the audience will have a certain understanding of the film after watching it. And the content of the video comes from the movie itself, which is absolutely impossible to fake. The most important thing is that this preview will be the longest in terms of playing cycle, and the responsibility of natural bearing will be different. "

He also mentioned that with the development of entertainment platform, film marketing methods are no longer routine, and each film has different needs for the definition and function of the first preview.

It is true that we can see from the first preview of various films released at present that some of them are still the same as in the past, and the film side seems to let the audience quickly grab the selling point of the film by determining the schedule and other information; Others let the audience remember the film first through various more innovative ways, or directly through plot fragments, and then use other contents to let everyone understand it slowly.

My People，My Country’s first trailer was one of Xu Wenbo’s impressive trailers. "This trailer was released on July 28, and it actually started working in mid-June."

The film was a rare patchwork film at that time. "It took us quite a long time to weaken the sense of patchwork, and it also dispelled everyone’s understanding of the main theme film. In the early stage, we did a lot of research and found that the general audience was more interested in the unit, so we took it as a main body, and sang a My People，My Country to lead to other time nodes. At the same time, we rewrote the music and presented every historical moment. "

Judging from the later discussion, this trailer is a success.

Although the idea of trailer editing has been slightly adjusted with the changes in the current entertainment market, the purpose of finally letting the audience find better movie selling points has not changed. It is difficult to find a clear explanation for this change. The biggest consensus is that with the rise of short videos, they often face the same feedback when making them, "cut them as short as possible."

Make a decision! The trailer is cut like this

Most movies will be fermented after 1-2 months of publicity, which also gives the publicity team and trailer team the opportunity to "try and make mistakes".

Several trailer producers have told us that although they and the propaganda team will try their best to think of various selling points in the early stage, after each trailer is issued, the comments of netizens can always give them some new ideas and avoid inappropriate content in time.

Every time Xu Wenbo cooperates with the director, everyone will constantly use various trailers to run in with the market. "We will change our marketing strategy at any time according to various public opinions and previously released data." However, this does not mean that the film promotion depends on data algorithm analysis, but more on emotional classification, from which the audience can find the empathy points found in the film materials.

Then, who will make the final decision on the trailer production of a movie?

Generally speaking, the trailer production of most domestic films is often involved in the late stage and near the end of the film production. However, at present, with the changes in the film market, many projects have been involved from the shooting period and even the early stage. Liu Wenpu told us that at present, they have a team working on a film production crew.

Of course, such projects are often head projects, and there are very strict plans for publicity and distribution.

At present, many filmmakers and trailer teams cooperate in a fixed way. Except for companies such as Light Film and Hengye Film, which have their own special video vision teams, most of them are tacit understanding and trust accumulated over the years.

Of course, with the rise of the trailer industry, the strength of many young companies can not be underestimated, and it is often the case that trailer companies conduct "competitive presentation". Some filmmakers will hand over all the trailer business to a single team, while others will choose according to their plans and hand over the appropriate content to the relevant teams.

Usually, in the direction of the trailer, the director has the relatively main decision, but the propaganda team will still give the director relevant opinions in combination with the market situation.

The director doesn’t like to put the best content in the trailer, but prefers the fried content … … Every director will have his own preference. Liu Wenpu also told us that Tsui Hark is one of the few directors who can modify the content of materials by himself. "His hands-on ability is very strong."

And in the trailer, they have their own ideas of this generation of "online directors".

For example, during the publicity period, after the intensive publicity of the film in the past year, many contents have been exposed almost. When facing the release, Chen Sicheng found a non-trailer team to edit. "Even some people are not in the film circle, but in the advertising circle. These people have brought some new ideas to the film promotion."

Lin Mingtao also verified to us Chen Sicheng’s rigor and carefulness in the trailer. "He has already clearly defined the ideas of some trailers from the time of shooting, and even in the middle of filming, he has already completed the trailer shooting."

The trailer is not simply edited according to the feature film. At present, many head projects will be "tailor-made" for the trailer during the shooting process.

Better and more realistic trailer

Should the trailer make an illusion and trick the audience into the cinema?

This question was thrown to every trailer creator by us. Everyone’s point of view is still the same, "you can’t destroy the temperament of the film itself." Trailers can "cheat", but this kind of "cheat" is to strengthen the advantages of the film itself.

Lin Mingtao is currently serving art cinema. "When we cut it, it will be between commercial films and non-commercial films. For example, in See Nara again, we will focus on the topic of mother-daughter feelings and orphans in World War II. This is a commercial topic, but the overall style will definitely retain the original temperament of the film."

Including their past participation, "we will strengthen the legendary content of the original site in the trailer and increase the suspense, which will arouse the curiosity of the audience."

In addition to editing creativity, many teams will make great efforts in music and other aspects, and music copyright is also the biggest export of a trailer cost. Liu Wenpu told us that they had spent 80,000 yuan to find a suitable tune in order to edit the preview of "One Warriors"; The Xu Wenhao team also spent nearly 200,000 RMB on the production of light music for the trailer of My People My Homeland Zhonghe Unit. These expenses do not include the mixing work in the later stage of the trailer.

At first glance, these costs are already "sky-high" for a preview material with a communication cycle of only one week, but compared with the "a poster worth 100,000 yuan" that was often mentioned in the past, this cost is not so high.

With the development of China’s film industry, previews, posters and other film materials are closely related to it. With the dedication and content support of these practitioners, it is possible to further broaden and innovate the technology and concepts of filmmakers.

Hainan province novel coronavirus epidemic prevention and control work headquarters
Notice on the continuous implementation of prevention and control measures for normalized epidemic situation

Joan pneumonia refers to [2021] No.35.

The epidemic prevention and control headquarters of cities, counties, autonomous counties and Yangpu Economic Development Zone, and the member units of the provincial epidemic prevention and control headquarters:

From 10: 00 on August 19, 2021, Yunlong Industrial Park in Haikou High-tech Zone of Haikou City was adjusted from a medium-risk area to a low-risk area. So far, our province is all low-risk areas. In order to implement the prevention and control strategy of "external defense input and internal defense rebound" and make overall plans for the prevention and control of normalized epidemic situation and economic and social development, in view of the grim situation of overseas epidemic situation, there are still a number of medium and high-risk areas in China, and the risk of importing epidemic situation into our province still exists. The relevant matters concerning the continuous implementation of normalized epidemic prevention and control measures in our province are hereby notified as follows:

First, continue to prevent the risk of epidemic input.Immigration personnel strictly implement the "14+7" control measures, that is, after the expiration of 14 days of centralized isolation, they will be subjected to medical observation at home for 7 days. Those who have lived in high-risk areas within 14 days will be kept in isolation for medical observation for 14 days after entering Qiong, and their nucleic acids will be tested as required. If there is a history of sojourning in an epidemic area within 14 days (prefecture-level cities and districts with medium and high risks in China, the same below), they shall pass with a negative certificate of nucleic acid detection twice within 48 hours (24 hours apart). Those who do not hold the nucleic acid test certificate will be tested at the port after arriving in Qiong. Each port can take centralized or home waiting for the results according to the specific situation, and individuals should do a good job in health monitoring. All cities and counties should pay close attention to the epidemic situation in all parts of the country, keep abreast of the situation in medium-and high-risk areas in China in a timely manner, carry out the investigation of people coming (returning) from medium-and high-risk areas in China, people with red and yellow codes, and people entering ports in other provinces in accordance with laws and regulations, accurately and scientifically implement health management service measures such as health monitoring, nucleic acid testing, and isolated observation, and resolutely implement "all the discharge should be done, all the inspection should be done, and all the management should be taken care of".

Second, continue to implement the prevention and control measures for the normalization of the epidemic.Compacting the "four-party responsibility", overcoming paralysis, war-weariness, luck and relaxation, and doing a good job in epidemic prevention and control with caution. Airports, docks, railway stations, bus stations and other key traffic places, shopping malls, supermarkets, farmers’ markets, wholesale markets and other crowded places should strictly implement normalization prevention and control measures such as wearing masks, temperature detection, checking health codes, "one-meter line", disinfection of public areas, and reducing waiting time; Internet cafes, bars, theaters, chess rooms, restaurants, libraries, museums and other closed public places, to control the flow of visitors, the implementation of wearing masks, temperature testing, regular ventilation and strict disinfection measures; Hotels should conscientiously implement real-name registration, wearing masks, temperature detection, checking health codes, regular disinfection and strict tableware disinfection, advocate non-contact ordering and checkout, recommend using public chopsticks and spoons, and remind diners to keep their distance.

Third, continue to implement prevention and control measures for gathering activities.According to the principle of "who holds it, who is responsible", we will formulate epidemic prevention and control plans and emergency response plans, and implement prevention and control measures such as wearing masks, temperature testing and checking health codes. Conference and exhibition organizers should control the density of participants and the scale of the conference; The establishment of personnel information database, in principle, within 14 days, there are high-risk areas and epidemic areas living history personnel do not attend the meeting; Do a good job in the temperature detection and investigation of admission personnel. Admission personnel must wear masks in a standardized manner throughout the whole process, and timely isolate and investigate those who have symptoms such as fever, fatigue and dry cough. Advocate "red things" and "white things" to keep everything simple and control the number of participants.

Fourth, strengthen the prevention and control of epidemic situation in key industries.Strengthen the responsibility of industry departments and strictly implement the epidemic prevention and control measures in various industries. Especially tourism, catering, fishery, cold chain transportation and other industries with strong mobility, miscellaneous contacts and high risk of infection, it is necessary to organize various forms of COVID-19 prevention and control knowledge training and publicity and education, so as to improve employees’ awareness and ability of self-protection. It is necessary to strengthen the health monitoring of temporary workers and take the initiative to ask about their living history. All kinds of schools at all levels should prepare for the start of school. Those who fail to meet the requirements of epidemic prevention and control, fail to implement prevention and control measures, and fail to implement effective emergency plans and drills can’t return to school. Strictly implement the self-health monitoring of teachers and students 14 days before the start of school, and complete nucleic acid detection and isolation measures for teachers and students with medium and high risks as required before returning to school, so as to prevent them from returning to school with diseases and risks.

Fifth, strengthen the management of high-risk groups.Twelve types of key industries, such as railways, highways, waterways, civil aviation, ports, medical and health care, and imported cold chains, should find out the personnel base, register and register them, and achieve "due inspection and complete inspection" in time according to the requirements of the Notice on Adjusting the Requirements of Covid-19 Nucleic Acid Detection for the Key Population "Should Check and Complete Inspection" and the Notice on Doing a Good Job in File Management of Key Posts by the COVID-19 Epidemic Prevention and Control Headquarters.

Six, strengthen the management of key places.Airports, ports and other places where inbound personnel (excluding those from Macao), inbound cold chains and other goods and the environment are in direct contact with handling, cleaning, quarantine, border inspection, flow inquiry, sampling, transshipment and boarding operations are subject to closed-loop or closed management. The personnel shall adopt a shift system with a certain working period, with centralized accommodation and closed management during the working period, and point-to-point transshipment between the workplace and the place of residence to avoid contact with family members and ordinary people in the community. International and domestic flight workplace staff should be fixed posts, and cross operations are prohibited.

Seven, strengthen the management of key institutions.All kinds of medical institutions, especially grass-roots clinics, strictly implement the responsibility system of first consultation, standardize the pre-inspection and triage of infectious diseases, strengthen the information reporting and closed-loop management of fever patients, and ensure that all fever patients are treated in fever clinics (consultation rooms). All kinds of medical institutions at all levels that have not set up fever clinics should refer patients with related symptoms in COVID-19 in strict accordance with the regulations. Drug administration and other departments should strengthen the monitoring of the sales of antipyretics in retail pharmacies. Medical care, pension and other key places should strictly implement measures such as wearing masks, temperature testing and checking health codes.

Eight, strengthen the prevention and control capacity building.Accelerate the construction of multi-point trigger early warning system, enhance the sensitivity of epidemic monitoring system, resolutely implement the "four early" measures, and strictly prevent late reporting, omission and concealment of epidemic situation. Improve all kinds of prevention and control plans, plans and work guidelines at all levels, effectively strengthen the training and drills of all kinds of prevention and control personnel on prevention and control knowledge, ensure that emergency response can be quickly launched in the event of sudden epidemic, and scientifically standardize the organization and implementation of emergency investigation and disposal. Strengthen the capacity building of fever clinic, full-time nucleic acid detection, rapid and accurate flow tracing, and standard setting of isolation points to fill the shortcomings.

Nine, steadily promote vaccination.Steadily promote the second vaccination work for young people aged 12-17. Increase the intensity of the second dose vaccination for people aged 18 and above, especially for those who have not been vaccinated with the second dose for more than 21 days, to ensure that people of the appropriate age who have no contraindications should "take everything" and those in key industries should "take everything".

Ten, strengthen the public awareness of prevention and control.Make full use of radio, television, WeChat WeChat official account and other publicity platforms, strengthen epidemic prevention and control policies and personal protection knowledge publicity, and strive to enhance people’s awareness of prevention and control, health literacy and vaccination. Guide the masses to actively participate in epidemic prevention and control, consciously abide by various measures, adhere to scientific wearing masks, keep social distance and pay attention to personal hygiene, and gather less and flow less. It is advocated that those who do not go to overseas, domestic high-risk areas and epidemic-related areas unless necessary should go to Beijing, go through the boarding formalities with the negative certificate of 48-hour nucleic acid test, report to the local community (village) and work unit in time after returning to Qiong, and consciously accept health management services.

Novel coronavirus epidemic situation in Hainan province.

Prevention and control work headquarters

August 19, 2021

(This piece is made public voluntarily)

　　An Admission Notice was sent to the freshmen of Zhejiang University with the admission notice. The Admission Notice reminded the freshmen to complete the Advanced Mathematics Prerequisite before reporting for duty. This course consists of 12 chapters and is open to the whole network on the MOOC platform of China University.

　　Not long ago, the Ministry of Science and Technology, the Ministry of Education, the Chinese Academy of Sciences, and the Natural Science Foundation of China jointly issued the Work Plan on Strengthening Mathematical Science Research, demanding that mathematical science research be strengthened and basic mathematical science be continuously and stably supported.

　　One is to remind students to pay attention to mathematics again before freshmen enter school. One is that the state has issued a policy document to guide the development of a specific discipline.

　　People can’t help wondering, do Chinese students have a solid foundation in mathematics? What about the overall mathematical literacy? What kind of situation does mathematics education, which is related to national development, face? Is there a problem in the connection of mathematics teaching?

　　"Almost all the students are studying math hard."

　　"Mathematics is my shortcoming. I have been making up mathematics since I started studying mathematics." Xinran is a senior three student in Beijing. In this summer vacation, which lasted just one month, a 90-minute "one-on-one" math tutorial was waiting for her every day. Xinran told reporters that "almost all the students are desperately learning mathematics". In her classmate’s remedial course, mathematics has almost become a fixed choice, plus other subjects.

　　Whether a subject is valued or not can always be explained by the popularity of training institutions. The reporter’s investigation found that mathematics can always occupy a place in the popular subjects of training institutions.

　　"Mathematics is a rigid demand, and there are always many people who sign up." Li Xiangyang, an enrollment teacher of a national chain training institution in Beijing, told the reporter that mathematics training is generally divided into class classes and "one-on-one" tutoring. "There are 5 to 8 people in each class, with a period of 12 days. There are three classes in the summer vacation, which are full half a month before the start of the class. Parents usually register their children in advance." Take the summer class from Grade One to Grade Two as an example. After three days of "reviewing old things", nine days of "learning new things" and 12 days of class, the students’ learning progress just matches the mid-term of normal school teaching. In other words, the summer vacation focused on previewing all the knowledge before the mid-term exam.

　　Even in the summer vacation, why are so many people "keen" on learning mathematics?

　　天津市某重点中学数学教师陈开达解释：“每次月考成绩都可以看出来，拉开分数最多的就是数学。”数学科目的重要性总是与分数联系在一起。

　　数学难度大，但可以拉开分数差距，不管在中小学，还是大学阶段，数学总让学生犯难。

　　武汉大学工学部学生胡易告诉记者，刚入学学习微积分时“十分吃力”，大学数学需要记忆的知识点并不多，新型题也不多，综合考察的是空间能力与数形结合能力。“大学数学课时间紧，内容多，节奏快，要考出好成绩还是得靠自己平时多做题”。因此，数学复习总是会占用胡易不少时间。

　　数学家开尔文曾告诫世人，别把数学想象得艰难晦涩，不可捉摸，它只不过是常识的升华而已。但是，在一些学生眼里，数学枯燥、深奥，甚至无用而无聊。

　　数学底子厚实，但是创新能力欠缺

　　不久前，邓明扬等6位代表中国重登国际数学奥林匹克竞赛（IMO）冠军宝座的少年载誉回国。在这次全球最负盛名的中学生数学竞赛，中国代表队以227分的总成绩与美国队并列世界第一。

　　在本次比赛中，中国诞生了两名满分选手，且6名队员均摘得金牌，这也是8年来中国队员再次全部摘金。自1985年算起，中国共获得20次团体第一，在各国的参赛队伍中遥遥领先。

　　"Chinese students have a high level of mathematics and outstanding students are concentrated. On the whole, compared with other countries, China’s mathematics education level is also among the best. " Lu Linhai, a professor at Nanjing University, said.

　　The Report on the Quality Monitoring of Compulsory Education in China supports his judgment. According to the Report, 84.6% and 78.9% of the students in Grade Four and Grade Eight have reached the middle and above level in mathematics, and 23.8% and 26.7% have reached the excellent level respectively.

　　"Chinese students have a solid foundation in mathematics, but there is a lack of innovation and creation in mathematics literacy," said Zhang Weizhong, a professor at Zhejiang Normal University. Many children get together to learn Olympic Mathematics, but they only study for the advantage of further studies. Some training institutions also mislead students and parents, equating mathematics learning with sea tactics and difficult calculations. "As a result, some students who achieved good results in mathematics in basic education gradually lost interest in mathematics when they grew up."

　　PISA survey found that Shanghai students spend about 35 hours in and out of class every week, more than 10 hours in the United States and Finland. That is to say, China students’ ability to take exams in mathematics is very strong, but this is at the cost of losing their confidence in learning and increasing their intensive study time. This survey is an extensive test of the Organization for Economic Cooperation and Development (OECD) for students aged 15-16 in mathematics, reading and science and technology.

　　Understand mathematics in an all-round way and feel its charm

　　It is mentioned in the Work Plan on Strengthening Mathematical Science Research that the strength of mathematics often affects the strength of a country, and almost all major discoveries are related to the development and progress of mathematics. Mathematics has become an indispensable and important support in the fields of aerospace, national defense security, biomedicine, information, energy, ocean, artificial intelligence and advanced manufacturing.

　　Ren Zhengfei, founder and president of Huawei, once publicly stated: "In fact, our real breakthrough is mathematics, and mobile phones and system equipment are centered on mathematics." At present, Huawei has 20 research centers around the world, with more than 700 mathematicians, more than 800 physicists and more than 120 chemists.

　　Mathematics is not only related to the development of major areas of the country, but also regarded as the basic literacy of citizens in modern society.

　　"Mathematics education and mathematics science research are relatively independent, but they are also related." Zhang Weizhong said that mathematics education is the foundation and support of mathematics research. The study of mathematical knowledge lays a knowledge foundation for students to carry out mathematical research in the future; Mathematical abstraction, logical reasoning, mathematical modeling and intuitive imagination, which are commonly used in mathematical learning, are the methodological basis of mathematical research; The promotion of mathematics teaching to students’ rational thinking level, scientific spirit development and rigorous and realistic attitude is the literacy basis for mathematical scientific research.

　　"Although the achievements of China students in the Olympic Mathematics and other fields are obvious to all," Lu Linhai said, "China’s mathematics education has not produced the top students". Compared with the number of winners of these Olympic Games, their achievements in scientific research and their contribution to the development of mathematics in the world have almost never attracted attention. What is the reason for it

　　A comparative data of Chinese and American students’ mathematical ability shows that China students are 40% higher than their American peers in solving calculation problems, 22% higher in solving simple problems, more than 20% higher in solving complex problems with limited process, and 4% lower in solving complex problems with open process.

　　Lv Linhai analyzed that some China students often deviate from cultural attributes to learn mathematics, and regard mathematics as a calculation skill and an examination tool, which easily leads to "separation" between learning and application.

　　"Different cultural backgrounds lead to great differences in mathematical thinking between China children and Western children." Lv Linhai added that in China’s examination system, the development goal of mathematics for students is to get high marks, which "embodies utilitarian function rather than rational thinking". He suggested that in order to create a good scientific research environment, respect the laws of mathematics and make a group of outstanding mathematicians stand out, it is necessary to let more students fully understand mathematics and feel its charm.

Heilongjiang province people’s social welfare department talks about the US Mission online.

　　Cctv news(Reporter Li Wenxue): Recently, the problem of arrears of wages reflected by American group riders in Heilongjiang Province has aroused widespread concern in society. In order to further understand whether there are problems such as wage arrears, and the protection of employment and rider rights and interests of the US delegation, the People’s Social Welfare Department of Heilongjiang Province held a video conference on March 28 to conduct an online interview with the US delegation. This is also the first interview with platform companies by the human and social departments to promote the healthy development of new employment forms since the implementation of the Guiding Opinions on Safeguarding the Labor Security Rights and Interests of Workers in New Employment Forms.

　　On December 17th, 2021, the Department of Human Resources and Social Security of Heilongjiang Province, together with seven provincial departments, issued the Implementation Opinions on Safeguarding the Labor Security Rights and Interests of Workers with New Employment Forms, and put forward 20 measures to safeguard the rights and interests of workers with new employment forms, such as network distributors, network car drivers, truck drivers and Internet marketers, in guiding enterprises to standardize employment, improving employment security system and optimizing public service measures.

　　On March 5 this year, some workers sent a video through a social platform, reflecting the problem of wage arrears of the US Mission. On March 8, a website reported that the US Mission was in arrears with wages and bonuses and could not get a rest. On March 25th, a social platform appeared again, which reflected that the Meituan takeaway site in Acheng District of Harbin owed more than 30 people wages.

　　After paying attention to the problems reflected on the Internet, the People’s Social Welfare Department of Heilongjiang Province read the labor service agreement signed by the rider of Acheng Meituan and Harbin Puhong Technology Co., Ltd., and found that there were some irregularities in the content, such as the simple expression of the agreement, the unequal rights and obligations of both parties, and some obviously unfair clauses for workers.

　　At the online interview on March 28th, Meituan explained the issues related to the rider’s labor security rights and interests, such as labor and employment, wage payment, social security payment, working hours, rest and vacation, and the unpaid wages reflected by Meituan riders in Acheng District.

　　According to reports, the focus of the above-mentioned related events is that there is a dispute between Harbin Puhong Technology Co., Ltd., a partner of Meituan Platform, and the takeaway rider in accounting for salary. In view of the fact that the wage payment date agreed by both parties is 25th of each month, and it has been paid normally on 25th of February, according to relevant laws and regulations, if the wage is paid normally on the wage payment date, it cannot be determined that there is wage arrears before the next wage payment date. In view of the disputes reflected by riders in the calculation of performance bonus, they can apply for labor arbitration according to law. Regarding the nonstandard labor service agreement, Meituan indicated that it would further urge the partners to standardize according to the interview requirements.

　　The Provincial People’s and Social Welfare Department pointed out that Meituan, as a new employment enterprise, should fully understand the importance and urgency of safeguarding the labor security rights and interests of workers in new employment forms, and should shoulder its due social responsibilities while pursuing its own interests and consciously safeguard the legitimate rights and interests of workers; While bringing employment opportunities to the vast number of workers in Heilongjiang, we should pay more attention to the labor security rights and interests of employees. It is necessary to further standardize the outsourcing enterprise contract and the labor service contract signed between the outsourcing enterprise and the rider, and check whether there are comprehensive, clear and specific provisions on the rider’s labor security rights and interests. If it is not done, it is necessary to carry out rectification and improvement, and actively seek the opinions of the people’s society, trade unions and other departments and workers to make the contract more reasonable, legal and compliant.

　　The Labor and Social Security Supervision Bureau of the Provincial People’s Social Welfare Department requires that the self-inspection and rectification should be reported before the end of April, and contracts with outsourcing enterprises and samples of labor contracts signed by outsourcing enterprises and riders should be provided.

　　The relevant person in charge of the US Mission said that it is necessary to actively shoulder social responsibilities, do a good job of implementation in light of the actual situation of the enterprise, take effective measures, safeguard the labor security rights and interests of new employees with practical actions, and truly implement the rights and interests of workers.

　　CCTV News:On the evening of July 28th, the opening ceremony of the 31st Summer Universiade in Chengdu will be presented wonderfully. On July 21st, the third all-factor rehearsal was held at the opening ceremony of the Universiade in Japan.

　　On the basis of the first two rehearsals, the third all-factor rehearsal further ran in all kinds of jobs, optimized the interconnection of all links, and further tested the safety and reliability of the whole process of the opening ceremony.

　　The overall duration of the opening ceremony is strictly controlled within 100 minutes, and the 15-minute literary performance "Dream of Youth" is accurate to one second. At the opening ceremony, the literary performance "Pursuing Dreams in Youth" consists of three paragraphs: Light of Youth, Vitality of Youth and Friendship of Youth, which focuses on showing the good features of young people from the emotional and spiritual levels. The Light of Youth reflects the young people’s positive and sunny pursuit. "Youth Vitality" highlights the vitality of young people in sports and life; Youth Friendship embodies the theme that young people from all over the world gather in Chengdu and exchange friendship.

　　Chen Weiya: Highlight creativity and strive for accuracy and excitement in all links.

　　"Simplicity, safety and splendor" are the requirements of this Universiade. Chen Weiya, the general director of the opening ceremony, said in an interview with CCTV reporters at the General Station that the scale of the opening ceremony of the Universiade was about 2,000 actors and volunteers, the overall duration was less than 100 minutes, and the cultural performance was only 15 minutes. How to present an unforgettable and wonderful opening ceremony in such a short time?

　　Chen Weiya, General Director of the Opening Ceremony of the 31st Summer Universiade:This Universiade, including the opening and closing ceremonies of the Universiade, we all follow a general requirement, that is, six words "simplicity, safety and splendor", which complement each other and are indispensable. Follow the requirements of simplicity, which requires us to win by intelligence and creativity. I can proudly say that this is at least the national and world-class large-scale sports activities held in our country, and the number of actors used in the opening ceremony is the least. The number of actors who directly participate in the cultural performances is more than 980, not more than 1,000. Together with the volunteers’ pacesetters and guides, there are less than 2000 people. The second aspect is to attend the opening ceremony of the Universiade. All the volunteers, actors and people who can be seen in all aspects of the scene are 99% young college students. There are also strict restrictions on time this time. I hope we can strictly control the opening ceremony within 95 minutes to 100 minutes.

　　CCTV reporter Li Jingjing:Is it the first time for you to direct such a large-scale opening ceremony in such a short time?

　　Chen Weiya, General Director of the Opening Ceremony of the 31st Summer Universiade:Generally, it takes 120 minutes or even 140 minutes for athletes to enter the stadium in this large-scale sports meeting. In the past, cultural performances were usually between half an hour and 50 minutes. After this time compression, the specially designed cultural performances were only about 15 minutes. We must first ensure the complete presentation of the necessary ceremonies, especially the athletes’ admission. Because at the opening ceremony of a sports meeting like this, every athlete who takes part in the competition, young people from all over the world, enters the opening ceremony and communicates directly with everyone. You have to make sure that they give full play to their youthful talents and even express themselves temporarily. Therefore, we have optimized the whole route, including athletes entering the audience after admission. Through several channels and effective guidance, now we can basically complete it in about 53 minutes to 58 minutes. For this reason, we have a lot of plans. In such a short time, you try your best to do it, and every link is accurate and wonderful.

　　Chen Weiya: Let the world appreciate the dazzling brilliance of the "Pearl of Bashu"

　　During the preparatory work for the opening ceremony of the Universiade, the directors went deep into Sichuan to collect ideas, and the unique charm of Bashu culture greatly inspired the directors’ creative inspiration. How to show these elements to the maximum extent in the 15-minute cultural performance, and how to let the whole world appreciate the glory of this "Bayu Pearl"?

　　Chen Weiya, General Director of the Opening Ceremony of the 31st Summer Universiade:They (experts and ordinary people) say that the word "Chengdu" has appeared for 2000 years. Up to now, the name of Chengdu has not changed. It’s up to you. We have Jinsha and Sanxingdui. It’s up to you. We have hot pot, we have Sichuan opera and we have Sichuan brocade. It’s up to you.

　　CCTV reporter Li Jingjing:There are too many elements.

　　Chen Weiya, General Director of the Opening Ceremony of the 31st Summer Universiade:We also have a park city under the snow-capped mountains, such a beautiful modern city, it’s up to you.

　　CCTV reporter Li Jingjing:The pressure is on the director group.

　　Chen Weiya, General Director of the Opening Ceremony of the 31st Summer Universiade:We kept thinking repeatedly with experts from all over the world. In 15 minutes, we tried to integrate these elements into the performance as organically and artistically as possible, and put them in various places to make it appear naturally, appropriately and fully.

　　CCTV reporter Li Jingjing:Chengdu has a high happiness index and is called "a city that you don’t want to leave when you come". So how can we organically combine the ancient Shu civilization and the temperament of the city through an opening ceremony? Let the audience all over the world empathize, so as to achieve a resonance?

　　Chen Weiya, General Director of the Opening Ceremony of the 31st Summer Universiade:I am also very confident that after friends from all over the world come, they will come to Chengdu to feel whether he wants to leave, and even more so when he looks at the opening ceremony. At the opening ceremony, the young people in Chengdu danced to their hearts’ content. At the opening ceremony, we could almost see all the wonderful cultural and historical details in Chengdu, Sichuan. If I haven’t been to the Giant Panda Paradise and watched the opening ceremony, I think the first impulse of foreign friends is that I want to see the giant panda with my own eyes, because our giant panda is a very lovely large-scale display in this place. We also have a special happy dance between pandas. People live in harmony with nature, and pandas even fly into the air. I think they all show the unique charm of "a city that you don’t want to leave when you come". Is there any hot pot? Yes; Is there any Sichuan Opera? Yes, both; Are there any people in Jinsha and Sanxingdui? Yes. Even at the beginning of the whole cultural performance, our ancestors knocked on a stone Qing seen in Jinsha Museum, which ended the history that people said that there was no ceremony and music in Bashu. Either in the performance or in the ceremony; It is not integrated into props, or it is integrated into videos, and it is displayed to it.

In the 6th Tianjin People’s Satisfied Selection of Good Doctors, Nurses and Hospitals jointly organized by Tianjin Health and Wellness Commission, Municipal Civilization Office and Municipal Federation of Trade Unions, Jiu San SocietyGao Xiang, chairman of the branch of Tianjin Fifth Central Hospital, was awarded the satisfaction of Tianjin people.The title of "good doctor".

As a doctor, Gao Xiang adheres to the professional spirit of "respecting life, saving lives, being willing to contribute, and loving the country without borders". He is skilled in his business and dedicated to his post. Because of his outstanding work performance, he has also been awarded the title of Tianjin Dedicated Good Man, Binhai New Area Dedicated Moral Model and Tianjin Municipal Health Planning Commission’s fourth post training technical competition technical expert.

1997He joined the Fifth Central Hospital of Tianjin in, and Gao Xiang started as an intern.twentyAfter years of hard work and hard work, he is now the director of the medical department of Tianjin Fifth Central Hospital and the deputy director of orthopedics administration. Gao Xiang has many identities, such as a member of the Foot and Ankle Surgery Group of the Orthopedic Branch of the Chinese Medical Association.SICOTStanding Committee member of China Department of Foot and Ankle Medicine, member of China Research Hospital Association Foot and Ankle Medicine Professional Committee, etc., but he is most proud of the satisfaction of the sixth Tianjin people.The title of "good doctor" Because he always felt that doctors serve the broad masses of the people, and it is the highest honor to be recognized by the people.

When he was a child in Gaoxiang, his father once said to him"The profession of doctor can help others to avoid pain, which is a respectable profession." Since then, he has been determined to be a doctor to help others at a young age. But it was many years later that he really understood the meaning behind the word "doctor".2001In, Gao Xiang was atPLA 89 HospitalFurther study in the Institute of Microsurgery. One day when I was on duty, I met a 19-year-old boy. His left calf was damaged and the situation was very serious. On the same day, the doctor group on duty decided to have an amputation operation, and after explaining the illness and treatment plan to the child’s father, the child’s father immediately cried. Just then, Gao Xiang’s teacher, Professor Zhang, happened to pass by. After asking about the situation, he carefully looked at the patient and made a surprising decision. He wanted to save the child’s limbs. Everyone thinks that this is too difficult, and it can’t be achieved with the existing technical level. But Professor Zhang said it doesn’t matter, he will be the chief surgeon. Gao Xiang asked him at that time: "You are not on duty today, why do you have to work so hard and take such a big risk?" Professor Zhang said earnestly, "What was our initial intention as a doctor? Isn’t it just to use what you have learned to help patients relieve their pain? It is worthwhile to pay a little hard but save a family. " Because of the high difficulty, the operation takes a long time. Finally, after 72 hours, Professor Zhang finally succeeded in saving the calf for the patient and created a medical miracle. After this incident, Gao Xiang really understood his father’s words when he was a child, and also understood that to become a qualified doctor, besides excellent skills, he should have an angel-like heart, a sea-like mind and the courage to overcome difficulties.

Since then, Gao Xiang has always adhered to the professional spirit of "the heart of the doctor’s parents". He is conscientious in his work and never cares about personal gains and losses. Sometimes there are many surgical patients, and he can’t get off work normally from 9: 00 in the morning until 11: 00 in the evening. He never complains, and he often sacrifices his weekend break to visit patients in Corey, with no regrets. Over the years, his selfless and caring attitude towards patients has never changed, and he has been praised by the majority of patients and colleagues.

2010In, the Department of Orthopaedics of the Fifth Central Hospital of Tianjin was divided into specialties, and Gao Xiang was the head of the Foot and Ankle Department. There were only three people in the whole department, with few personnel and heavy tasks. In this case, he resolutely took the lead. That year, he was hospitalized for surgery for osteoid osteoma of ilium and returned to work one month after operation. Due to the short postoperative time, he did not fully recover, and after some complicated and long-term operations, he would have lower limb pain and could not stand. In order to ensure the therapeutic effect of patients, Gao Xiang often begged the anesthesiologist to give himself a nerve block before the operation to relieve the pain and ensure the smooth completion of the operation. This situation lasted for more than three weeks, and colleagues around him advised him to pay attention to his health, but he always laughed it off and said, "It doesn’t matter if it hurts, the patient needs me." That’s it. With his efforts and drive, the professional level of the Department of Orthopedics, Foot and Ankle in Tianjin Fifth Central Hospital has developed rapidly. In January 2015, the hospital established the foot and ankle surgery diagnosis and treatment center, which features foot and ankle surgery, and the treatment of traumatic osteopathy of foot and ankle is at the leading level in Tianjin.

2019On January 1, 2008, when thousands of people were celebrating the New Year, Gao Xiang was sent to the outer court for consultation with a patient with a broken lower limb. When he saw the patient’s injured calf, he couldn’t help thinking of his teacher and the past that he could never forget. Therefore, he gave up the time to reunite with his family, immediately escorted the patient to the Fifth Central Hospital, and urgently opened a green channel to perform replantation surgery for the patient. After a night of hard work, the patient’s calf was finally saved, which brought hope to this family.

2020At the beginning of 2008, Gao Xiang just took over the work of the medical department of the Fifth Central Hospital of Tianjin, and the epidemic occurred. The Medical Department is the lead department of the whole prevention and control work. In accordance with the instructions of the hospital leaders, Gao Xiang comprehensively arranged the epidemic prevention and control work of the hospital, including arranging medical teams to assist Wuhan and Haihe Hospital; Construction of fever clinic in hospital; Pre-examination and triage, outpatient and emergency treatment, hospital management and a series of tasks. In order to better complete the task, ensure that the epidemic prevention work is in place, and at the same time ensure the medical needs of the majority of patients and the treatment of acute and critical diseases, Gao Xiang, who just took over the medical department, often works around the clock. Under his leadership, the prevention and control and normal diagnosis and treatment work of Tianjin No.5 Central Hospital were carried out in an orderly manner. At the beginning of the epidemic, nucleic acid testing was carried out, becoming one of the first five nucleic acid testing laboratories in Tianjin, and then the Fangcang nucleic acid laboratory was established. At present, the daily detection volume can reach 2,000, which is the smooth epidemic prevention work in the new During the epidemic prevention and control work, Tianjin Fifth Central Hospital achieved no missed diagnosis, no misdiagnosis and zero infection among medical staff, which was highly recognized by the municipal and district health and health committees.

"Work hard and wait for no one." It’s Gao Xiang’s favorite sentence. Over the years, he has been adhering to this concept in his life and work, and always regards the medical service for the people as his greatest responsibility and highest mission.(Jiu San Xue)She Binhai New Area District Committee Zhou Wu)

abstract

On March 28th, the 11th China Network Audiovisual Conference opened in Chengdu, Sichuan. With the theme of "Extreme Audio-visual Empowerment", this conference will hold an exhibition, a main forum, more than 30 theme forums and release activities, and 45 citizen experience activities. More than 2,000 enterprises and institutions in the industry, more than 5,000 industry representatives and nearly 10,000 guests will attend the grand event.

NO.10 Superman Story 2

Box office: $609 million

NO.9 "Star Wars 8"

Box office: $620 million

NO.8 The Avengers

Box office: $623 million

NO.7 Jurassic World

Box office: $652 million

NO.6 titanic

Box office: $659 million

NO.5 Avengers 3

Box office: $679 million

NO.4 Black Panther

Box office: $700 million

NO.3 avatar

Box office: $761 million

NO.2 Avengers 4

Box office: $858 million

NO.1 "Star Wars 7"

Box office: $937 million

 

Pretending to be a public security fraud

Fraud:

Fraudsters were fraudulently used with consumer tools such as bank cards, telephones, social security cards and medical insurance cards under the victim’s name, or the identity information of the victim was leaked, and they were suspected of money laundering, drug trafficking and other crimes. Later, they pretended to be law enforcement officers of judicial organs such as the Public Security Law and asked the victim to transfer funds to the national account to cooperate with the investigation.

Typical case:

2020year11moonnineOn, Ms. Yang, who lives in Xixiang County, received a fraudulent phone call pretending to be the Dingxi Public Security Bureau of Gansu Province. The other party claimed that Ms. Yang had previously organized fraud in partnership with a person named "Li Qiang" and said that the money had been paid to the Agricultural Bank account handled by Ms. Yang in Changsha. Ms. Yang told the other party that she had never been to Changsha, and even failed to apply for a bank card in Changsha. The other party also said that Li Qiang might steal the card of Ms. Yang’s identity information office, so that Ms. Yang could cooperate with the Changsha Public Security Bureau to assist in the investigation, otherwise. Ms. Yang was so flustered that she believed each other. The other party asked Ms. Yang to add a fewQQnumber,After Ms. Yang added, the other party passed.QQVoice and video chat showed Ms. Yang the police uniform and police officer’s card, and Ms. Yang, who was more confident, handled the Postal Bank of China under the guidance of the other party.UShield, and transfer all the money to the first-class card of China Post. The other party told Ms. Yang that she needed to check the account and let Ms. Yang put itUSend the shield number and verification code to each other, then go to the local police station for face recognition, and then return the money to Ms. Yang after face recognition. Under the guidance of the other party’s operation, Ms. Yang successively transferred money to the account provided by the other party.15Second, I felt cheated after making the payment, and the total amount was cheated.62Ten thousand yuan.

Swing-killing fraud

Fraud:

Fraudsters first use online social tools (QQ, WeChat, Momo, Tik Tok,soul), text messages, web pages and other information on promoting investment and financial management such as stocks, foreign exchange, futures and virtual currency. After the victim actively contacts the fraudster or the fraudster actively adds the victim as a friend (making friends with the victim, determining the relationship between men and women, marriage and love, etc.), he will invest in the wealth management website orAPPSend it to the victim, falsely claiming that he can make money easily, has inside information, has website loopholes, or falsely claiming that he is a professional investment consultant, securities manager, etc., to induce the victim to make false websites provided by fraudsters.APPInvestment. After investing a lot of money, the victim found that he could not withdraw cash or lost all of it. When negotiating with the other party, I found that the other party blacked myself out or lost contact.

Typical case:

2020year11moon11On, Mr. Zhang, who lives in Mianxian County, saw a picture of digital currency making money from a strange WeChat while brushing his circle of friends, so Mr. Zhang contacted the netizen and asked him. The netizen told Mr. Zhang that "they" had a professional data team and professional personnel, and Mr. Zhang had to pay for joining their team.threeThe starting price of 10,000 yuan, Mr. Zhang didn’t believe it at first. Soon after, Mr. Zhang contacted the netizen, and then the netizen sent Mr. Zhang a QR code picture, which appeared after recognition.Krakend"ofAPP，Under the introduction of this netizen, Mr. Zhang downloaded theAPP, and registered with Mr. Zhang’s wife to log in personal information and bind the bank card account, and Mr. Zhang recharged it under the guidance of the other party.threeTen thousand yuan. At first, Mr. Zhang’s login account showed that he was in a profitable state. Mr. Zhang wanted to withdraw money, but the netizen told him that an account could only be operated once. If he wanted to withdraw money, he could not continue to fire digital currency. So Mr. Zhang didn’t withdraw money. Later, he saw that his account was profitable every day. Mr. Zhang, who thought he was making a profit, kept increasing the amount of investment and recharging it several times. At this point, Mr. Zhang wanted to withdraw cash, but found that his account could not be withdrawn. Mr. Zhang realized that he had been cheated, in total.54Ten thousand yuan.

Brush-off rebate fraud

Fraud:

Fraudsters use web pages, recruitment platforms,QQ, WeChat, SMS, Tik Tok and other channels to promote part-time advertising, recruiting people to do part-time online brushing on the grounds that opening an online shop needs to quickly refresh the transaction volume, online praise and credibility. Fraudsters use words to trick victims into providing links orAPPPay for shopping on the website, and promise to refund the shopping expenses after the transaction, with an extra commission. Generally, in the process of swiping the bill, when the victim swipes the first bill, the fraudster will give the victim a small rebate to taste the sweetness. When the transaction amount of the victim swipes the bill becomes larger, the fraudster will refuse to refund the money for various reasons and blacken it.   

Typical case:

2020year11moon13On, Ms. Liu, who lives in Hantai District, was invited to a brushing group by a strange WeChat when she swiped her mobile phone at home, and then the group began to distribute brushing tasks. At first, Ms. Liu made two small brushing tasks under the guidance of the other party, and successfully got the commission. Ms. Liu, who was so sweet, was more convinced of the convenience and relaxed her vigilance, and carried out the third brushing task. However, she did not get the commission. The other party told Ms. Liu that the brushing task wasfourEven the order, the commission rises.10％Under the guidance of the other party, Ms. Liu completed the brushing task four times in a row, but the money was not withdrawn to her account. The other party asked Ms. Liu to continue to do the brushing task for various reasons, and Ms. Liu transferred money to the other party before and after.10Time. Finally, I realized that I was cheated, and I swiped the cheated amount.21Ten thousand yuan.