标签： 武汉夜生活论坛

　　editorial comment/note

　　With the outline of the national long-term scientific and technological development plan (2006— With the implementation of "2020)", China’s investment in scientific research and discipline construction is increasing, the pace of development is obviously accelerated, the innovation ability is gradually improved, and its international influence is expanding day by day. A series of reports on discipline development research issued by China Association for Science and Technology (2014— 2015) shows that in recent years, China’s discipline construction has achieved a number of important achievements, the overall level has been greatly improved, and many key scientific and technological indicators have entered the forefront of the world. We are changing the world R&D pattern.

　　In the 21st century, the rapid development of the new scientific and technological revolution has promoted the intersection, integration, infiltration, differentiation and development of disciplines, and given birth to new major breakthroughs.

　　In recent years, China’s investment in discipline construction has been increasing, the discipline development environment has been continuously optimized, the discipline team has been growing, the discipline platform construction has been improved, and international cooperation and exchanges have been strengthened, which has effectively promoted the development of discipline construction and scientific research, and the basic disciplines and applied disciplines have also been continuously improved and developed. The innovation bred by interdisciplinary integration is gradually changing the discipline structure.

　　1. Significant achievements in discipline research.

　　Since the 21st century, the number of international scientific papers published by scientists in China has shown an alarming growth rate, which has aroused widespread concern in the international scientific and technological circles, which also reflects the development trend of various disciplines in China.

　　Extended version of the Web of Science Science Index of Thomson Technology Group — — ESI database divides all natural science fields into 22: clinical medicine, chemistry, physics, biology and biochemistry, molecular biology and genetics, neuroscience and behavior, materials science, engineering science, botany and zoology, environmental ecology science, immunology, pharmacology and toxicology, earth science, neurology and psychology, agricultural science, microbiology, space science, computer science and so on.

　　From 2005 — According to the data in 2015, some disciplines in China are already in the leading position in the world and have strong influence in the world. High-quality research achievements in 22 disciplines in China have increased significantly, among which the number of international scientific papers published in chemistry, physics, engineering science, material science and clinical medicine has exceeded 100,000, especially in chemistry, reaching more than 300,000; In addition, the achievements in the fields of biology and biochemistry, earth science and computer science are also very impressive. Among the 22 disciplines, China has the highest number of "articles are cited" in many disciplines, which is 18.63; Followed by molecular biology and genetics, with 11.55.

　　As of 2015, from the ranking of the number of published papers, 17 of the 22 disciplines in China are in the top five in the world, among which, China’s chemistry and materials science ranks first in the world.

　　In addition, the proportion of periodical papers published in the field of system science and system engineering in China increased from 23.5% in 2010 to 32.1% in 2015, making it the leading country in this field in the world.

　　At the same time, China’s frontier subject papers have made great achievements. In October 2015, the Literature and Information Center of Chinese Academy of Sciences and Thomson Reuters, an international professional information service provider, released the report "Research Frontier in 2015", which showed that China had core papers in 82 frontier disciplines, and the number of core papers in 16 frontier disciplines was the first. This shows that China has a strong frontier contribution and ranks among the world’s advanced in some important frontier disciplines.

　　In addition, the report also shows that there are 38 frontier disciplines in China, with 133, 68, 55 and 29 in the United States, Britain, Germany and Japan respectively. The 16 frontier disciplines in China ranked first in the number of core papers are from the fields of chemistry and materials science, physics, mathematics, computer science and engineering, agriculture, botany and zoology, biological science and earth science.

　　Among them, in the field of chemistry and materials science, China’s contribution to frontier disciplines exceeds that of the United States. Among the 19 frontier disciplines in this field, China ranks first in the number of core papers among the 9 frontier disciplines, and the United States has 7.

　　2. The application trend of basic research is obvious.

　　In recent years, the application trend of some basic research in China is obvious. The transformation period of basic research results is shortened, and the boundary between basic research and applied research is increasingly blurred.

　　For example, in the field of mathematics, the numerical solution of developmental partial differential equations has become a rapidly developing discipline in the field of applied mathematics, and it has important applications in aerospace, electromagnetism, petroleum exploration, semi-conductor device simulation, water pollution treatment, ocean and meteorology. The research on numerical simulation methods of these mathematical and physical equations belongs to the frontier research field of science and engineering calculation, and the design, analysis and application of high-order precision numerical algorithms for these problems have always been a challenging topic.

　　From the specific disciplines, basic disciplines such as biology, life science, chemistry and earth science have made remarkable progress in the application of basic research.

　　Take the "973" project with Zhao Guoping, the chief expert of Shanghai Academy of Life Sciences, Chinese Academy of Sciences, as an example. Focusing on the key scientific issues and related technical difficulties such as the design principle, synthesis and assembly, module construction, standardized library building and integration and adaptation mechanism in chassis cells, this project focuses on the artificial heterologous synthesis of terpenoids, and has made some important progress, especially in the important medicinal and edible terpenoids such as rare ginsenoside CK, stevioside and tanshinone precursor rust alcohol. In addition, significant progress has been made in the mining and synthesis technology innovation of component modules.

　　The application of synthetic biology technology in tumor research is just beginning at home and abroad. The "973" project "Basic research of synthetic biological devices in bladder cancer intervention", headed by Professor Cai Zhiming of Shenzhen University, applied synthetic biology technology in tumor treatment research on the basis of system biology. The project discovered some key genes and pathways of bladder cancer, and based on the analysis of relevant gene network information, the quantitative controllable engineering system was used to characterize the commonness of complex events in the occurrence and development of bladder cancer, and many potential compound targets for bladder cancer identification and treatment were excavated.

　　In physics, near-field optical tweezers is a new technology based on near-field optical theory, which can capture and manipulate particles stably. Compared with the traditional far-field optical tweezers based on single beam gradient force, near-field optical tweezers overcome the limitations of optical resolution diffraction limit and thermal effect, and can capture and manipulate nano-sized particles. Optical tweezers are widely used in biology, physics and chemistry because of their unique non-contact and non-destructive characteristics, especially in biology, which has been used to study cells, viruses, bacteria and DNA molecules.

　　In chemistry, with the development of strategic emerging industries in China, new materials have become a hot research direction in recent years. By exploring the properties of different kinds of materials, practical problems encountered in production and life can be solved. Supercapacitor is a new type of energy storage element between traditional capacitor and chemical power supply. It has the advantages of short charging time, long cycle life, good power characteristics, wide temperature range, economy and environmental protection, and has been widely concerned in many fields. The development trend of electrode materials mainly has two directions: compounding materials, using the synergistic effect between different materials, compounding and doping between different materials, in order to obtain electrode materials with excellent performance; Nanometer materials not only have high specific surface area, but also can improve the transmission and diffusion paths of electrons and ions, thus improving the electrode performance.

　　In addition, China has accumulated a lot in some important frontier fields of basic research, and has also bred new breakthroughs in application, such as dark matter, discovery of new particles and survey of the sky in Hanoi, which is expected to deepen human understanding of the universe and then play an important role in human space exploration; In the fields of high temperature superconductivity and topological insulators, quantum memory, quantum regulation, mesoscale science, etc., it is expected to explore and discover new physical and chemical principles and produce application value; In the research fields of synthetic biology and brain science, it is possible to explore the origin of life and innovate scientific thinking methods.

　　3. The growth rate of disciplines related to people’s livelihood.

　　The development of information science and technology is in the ascendant, and it is the leading force of sustained economic growth; The rapid development of life science and biotechnology plays a key role in improving and improving the quality of human life; Energy science and technology continue to heat up, opening up new ways to solve energy problems; The rapid growth of new achievements in the field of environmental protection provides new solutions to environmental problems. Science and technology related to people’s livelihood have been vigorously developed, and the speed of application and transformation of science and technology has been accelerating.

　　Taking Chinese medicine as an example, Chinese medicine is a unique health resource in China and an important national industry, which is of great significance in the overall economic and social development. Historical reasons and the complexity of traditional Chinese medicine itself restrict the varieties of traditional Chinese medicine to become bigger and stronger. The secondary development of traditional Chinese medicine has led the innovative development direction of traditional Chinese medicine industry, promoted the technological upgrading of traditional Chinese medicine industry, played a significant role in ensuring the success of medical reform in China and promoting the development of biomedical industry, and produced significant economic and social benefits.

　　For example, around the great demand of making Chinese patent medicines bigger and stronger, and promoting the transformation of Chinese traditional medicine industry to science, technology, efficiency and economy, the research group of Academician Zhang Boli of Tianjin University of Traditional Chinese Medicine took the lead in putting forward the research strategy of secondary development of Chinese patent medicines. After theoretical innovation, technical breakthrough and popularization and application, five core technical systems, such as accurate clinical positioning of Chinese patent medicines, systematic analysis of pharmacodynamic substances, network pharmacology, process quality optimization and digital whole-process quality control, were established, and a secondary development model of Chinese patent medicines was formed, which effectively promoted the technological upgrading of Chinese traditional medicine industry and enabled Chinese medicines to be upgraded. The project has completed the secondary development of 32 varieties of Chinese patent medicines, and the number of varieties with sales exceeding 100 million yuan has increased from 3 to 12. The project technology has been promoted in many places across the country and applied to nearly 100 Chinese medicine enterprises.

　　4. Interdisciplinary integration breeds innovation.

　　Interdisciplinary integration is the source of innovation. The intersection and integration of disciplines is often the frontier of innovation, which leads to major scientific discoveries and the emergence of emerging disciplines. At present, many disciplines are committed to cultivating the awareness of interdisciplinary integration, exploring effective ways of interdisciplinary integration, stimulating innovation vitality, improving innovation quality and comprehensively enhancing innovation ability.

　　Biomedical interdisciplinary subjects are constantly exploring and deepening in frontier fields. For example, Professor Wang Xiaoying from the Imaging Department of the First Hospital of Peking University, Zhou Diange’s research team from the Department of Orthopaedics of Peking University People’s Hospital and Zhang Jue’s research team from the Peking University Biomedical Interdisciplinary Research Center cooperated closely to innovatively develop a new type of flexible coil, which provided a brand-new idea for the design and imaging of magnetic resonance radio frequency coil and non-invasive perfusion functional imaging of lower limbs.

　　In recent years, China’s frontier interdisciplinary subjects have effectively promoted the system construction, discipline construction and team construction of disciplines in China by exploring the innovation of scientific research and management mechanism, promoting the construction of basic conditions, recruiting and introducing outstanding scientific research talents, and organizing academic exchanges and research project applications.

　　Under the framework of the Frontier Interdisciplinary Research Institute, each research unit, based on its own existing conditions and facing the development of science and technology and the needs of the country and society, organized multidisciplinary research forces to carry out research on frontier issues and tackle key problems in science and technology, won the support of various interdisciplinary research projects, and achieved some important research results.

　　 (Reporter Zhan Yuan)

CCTV News:Recently, there has been cooling and snowfall in many parts of the country, and children’s respiratory diseases are in the high season. What is the overall situation of pediatric medical resources in the national maternal and child health care system? What matters should be paid attention to in children’s home care? The National Health and Wellness Commission held a press conference on the 17th to respond to concerns about the prevention and treatment of respiratory diseases in winter.

According to reports, as children’s respiratory diseases enter a period of high incidence, the National Health and Health Commission has made overall plans to guide and promote maternal and child health care institutions at all levels to expand capacity and increase efficiency, and fully protect children’s medical needs: expand pediatric service resources, guide maternal and child health care institutions to strengthen personnel deployment, and meet children’s medical needs to the maximum extent; Optimize the spatial layout and treatment process, promote the pre-diagnosis inspection service, smooth the green channel for emergency treatment, and gradually realize the grading and stratification of children’s treatment; Promote the "internet plus" service, and reduce the pressure of offline medical treatment through online outpatient follow-up, online prescription, and logistics and delivery of drugs to the home.

At the present stage, China has strengthened children’s health guidance in combination with children’s health care services, continuously increased the popularization of popular science, and provided targeted technical guidance to kindergartens, primary and secondary schools and other institutions with a large number of children to prevent the occurrence of clustered diseases. In response to the problem of home care for children that parents are generally concerned about, industry insiders said that parents should choose to rest at home or seek medical treatment in time according to the changes of children’s condition, do not enter the park or attend classes with illness, and avoid taking antibacterial drugs for their children.

Lu Gen, Director of Respiratory Department of Guangzhou Maternal and Child Health Hospital, Guangdong Province:Attention should be paid to the interaction of drugs. Do not take antipyretics and compound cold medicines containing antipyretic and analgesic at the same time. At the same time, avoid using Chinese patent medicines with the same function and overlapping components, which will increase the risk of adverse drug reactions. After children get sick, they should choose to rest at home or seek medical treatment in time according to their illness. It is not recommended to enter the park or attend classes, so as to avoid cross-infection.

Chang Zhaorui, a researcher at the Center for Disease Control and Prevention of China, said that Covid-19 infection in China is at a low epidemic level, and the BA.2.86 mutant and its subfamilies in Covid-19 account for a relatively low proportion. At present, the public health risk of this mutant in China is low. So far, no unknown new viruses and bacteria have been found in the pathogen monitoring of respiratory diseases in China.

Meituan’s lawyer’s letter of living expenses is a legal document issued by Meituan’s financial department for users and law firms with outstanding loans. This is usually a formal warning to remind users that they have failed to fulfill the agreed obligations in the loan contract and urge them to repay as soon as possible. It usually comes from the legal means that users will take further when they are in arrears for a long time or have failed to collect for many times. After receiving the lawyer’s letter, the user may face further legal investigation, which needs to be taken seriously and dealt with in time.

After receiving the letter from the lawyer of Meituan’s living expenses, users need to realize that this is not just an ordinary collection, but a prelude to possible legal procedures. If the outstanding loan is ignored or continued, the collector may apply to the court for prosecution. After the court ruling, users may face enforcement measures, such as freezing bank accounts, inquiring about property status or even losing the right to dispose of some property or assets under their names. If the user is included in the list of people who have broken their trust, it may also affect normal life and credit activities, such as restricting high consumption, restricting the application for loans or credit cards. In order to avoid these consequences, measures should be taken in time after receiving the lawyer’s letter.

After receiving the letter from the living expenses lawyer of Meituan, it is necessary to confirm the authenticity of the letter. Usually, a formal lawyer’s letter will clearly indicate the name, address and contact information of the law firm, with the lawyer’s signature or firm seal attached. Users can verify the source of the letter by official website of the law firm or calling the public telephone. The customer service channel of Meituan’s living expenses is also an important way to confirm. You can directly call the customer service of Meituan Financial Platform for verification. Don’t call the strange private number in the letter at will, and beware of fraudsters committing fraud in the name of lawyer’s letter.

When you receive the letter from the lawyer of the US Mission’s living expenses, don’t panic or ignore it. Contact the official customer service department of Meituan at the first time to find out the unpaid amount, interest accumulation and specific situation, and confirm the authenticity of the letter. If it is true that the overdue payment is overdue, you should try to negotiate with the US delegation-explain your financial difficulties and strive for a plan of deferred repayment or installment repayment. You can also consult a lawyer to confirm whether you have any legal rights to claim. If you are unable to repay the debt, you can consider signing a written repayment agreement with the platform, and don’t delay the handling at will, otherwise it will have more serious legal consequences.

Receiving a letter from a lawyer of the US Mission’s living expenses does not mean that it will definitely face legal proceedings immediately. The lawyer’s letter is more of a warning to the borrower, urging the other party to fulfill its contractual obligations as soon as possible. Whether it will be prosecuted or not depends on the user’s subsequent reaction and attitude towards the letter. If the user pays off quickly after receiving the lawyer’s letter or reaches a repayment agreement with Meituan, it is usually less likely to sue; On the contrary, if users continue to default or fail to respond, they are more likely to be sued. Users should actively respond to lawyers’ letters and try to reach a settlement with Meituan before litigation.

The overdue Meituan living expenses loan has already had an impact on the user’s credit record. If the user fails to repay the loan on time, the default record will be reported to the central bank’s credit information system, which will seriously affect personal credit information. The receipt of a lawyer’s letter shows that the overdue situation has become more serious and the credit risk of users has already appeared. After being sued, once the court decides that the borrower needs to perform the contract and refuses to perform it, it may be included in the list of people who have lost their trust (commonly known as "Lao Lai"), which greatly lowers the personal credit score. After receiving the lawyer’s letter, we should try our best to solve the problem through consultation to avoid credit stain.

Generally, the lawyer’s letter of the US Mission’s living expenses will explain the specific amount that the user needs to repay, including principal, interest, late fees, attorney fees and other related expenses. These fees are calculated according to the terms of the loan contract or the platform agreement, and users need to check them item by item. For example, the late payment fee is the penalty fee due to overdue, while the lawyer’s fee is the cost incurred by the platform to hire a law firm to send letters and subsequent possible lawsuits. Some interest may be calculated on a daily basis, which also requires users’ special attention. If you are in doubt about the details of the fee, you should contact the relevant departments as soon as possible to verify.

The core of preventing receiving the letter from the lawyer of the US Mission’s living expenses is to fulfill the repayment obligation on time. Users need to evaluate their repayment ability and plan the loan amount and term reasonably before borrowing. In the process of repayment, we should pay attention to the monthly repayment time and try to prepare repayment funds in advance. In case of sudden financial difficulties, you should contact Meituan’s living expenses customer service in time, explain the situation and apply for deferred repayment or adjust the repayment plan. Reminders can be set, such as mobile phone calendar reminder or binding automatic deduction, to ensure that the repayment time limit is not missed due to negligence, and to fundamentally avoid receiving a lawyer’s letter.

　　Whether to eat rice or noodles is always a controversial topic. Let’s divide into several questions and take a quick look.

　　Question 1

　　Compared with the staple food made of white flour, which one has higher calories?

　　As far as the calorie of food is concerned, it is not what food is made of, but what it is made of, how much water it contains, how much dry food it has, and whether it is added with oil and sugar. The reason why pasta is generally higher in calories is because of the above two reasons.

　　A lot of pasta needs oil, even both oil and sugar. Most of those foods with stuffing have fat and thin meat stuffing and enough fat. Therefore, compared with rice, these pasta dishes have higher calories, which is understandable.

　　Those pasta without oil and sugar depend on the moisture content. The moisture content of ordinary white rice is usually between 62% and 65%. Except for soft noodles, pasta will probably be lower than this value. For example, the moisture content of steamed bread is about 45%-50%, and the staple bread is even lower, only about 40%. As for dry staple foods such as naan, steamed buns and dry pancakes, the moisture content is even lower.

　　Because the water content is low, eating a little more will increase the calories. Comparatively speaking, rice has more water content, less dry goods and lower calories. If you cook porridge again, it will contain more water and have lower calories in each bite.

　　Therefore, compared with the same dishes, when eating rice or porridge, the quantity is better controlled, and the risk of excessive calories is slightly smaller.

　　Question 2

　　Compared with the staple food made of white rice and white flour, which one has higher blood sugar response?

　　In terms of blood sugar reaction, white rice and white flour food are generally high, depending on the cooking method.

　　Compared with white steamed bread and white bread, the glycemic index (GI) of rice is slightly lower, but not much lower. White steamed bread and white bread are 88, and white rice is 83. Whole wheat steamed bread and whole wheat bread will raise blood sugar more slowly.

　　For those pasta with added fat, although the digestion speed is slow and the blood sugar rises later and lower after a meal, the food with high fat has an adverse effect on the insulin sensitivity of the next meal. Therefore, it is not a good choice for people who need to control blood sugar, and it is not a good choice for people who need to lose weight.

　　Among pasta, pasta and macaroni have the lowest blood sugar reaction, and ordinary dried noodles are lower than steamed bread. Generally speaking, the higher the content of protein in flour for noodle making, the more chewy the cooked taste, and the lower the postprandial blood glucose response.

　　Similarly, rice also has different processing accuracy and processing methods. If you eat germ rice, rice with some brown rice, etc., then under the premise of the same cooking method, the GI value is lower than that of polished white rice. There are also some boxed ready-to-eat rice processed in advance, and the GI value is lower than that of freshly cooked rice at that time.

　　Of course, the GI value of these rice is lower than that of steamed bread and bread. Therefore, from the perspective of blood sugar stability, ordinary rice has a slight advantage.

　　Question 3

　　Is there any rice food with a higher blood sugar response than white rice?

　　Among white rice foods, there are indeed some foods with higher blood sugar response than bread and steamed bread, that is, white rice porridge and glutinous rice food.

　　White rice porridge cooked with refined white rice is very easy to digest because it is boiled to powder, so its blood sugar response is higher than that of white rice.

　　However, these foods are similar to rice. Although the blood sugar peak is steep, it is not easy to cause hypoglycemia. What is more powerful is glutinous rice food. After eating them, not only did their blood sugar rise sharply, but according to the same amount of carbon and water, their postprandial blood sugar was easy to drop below the normal level.

　　So, what if you add oil to glutinous rice food? Blood sugar will rise a little later, but the peak of blood sugar in the later period is big and lasts for a long time. Of course, this kind of food is added with fat and has more calories than white rice, which is not suitable for people who need to lose weight.

　　Therefore, for unhealthy people who have already suffered from cardiovascular diseases or diabetes, glutinous rice foods such as fried cakes, glutinous rice balls and zongzi, as well as refined white rice foods such as rice rolls and preserved egg porridge, need to be controlled even more, because their GI values are really too high, even higher than ordinary white rice.

　　Therefore, from the perspective of controlling blood sugar, glutinous rice food is the worst, worse than white bread and steamed bread.

　　Question 4

　　How to match rice food and pasta with whole grains?

　　Rice can be incorporated into countless kinds of whole grains and legumes to make miscellaneous grains rice. Half white rice and half other miscellaneous grains (most of which need to be soaked in advance) actually taste very fragrant. It is also very simple and convenient to add some diced sweet potatoes, Chinese yam slices and taro seeds when steaming rice.

　　Flour can also be added with about 20% of miscellaneous grains powder to make steamed bread, cakes, pancakes, bread and so on. However, when the addition amount exceeds 20%, the taste of pasta will become worse because gluten is seriously diluted. A small amount of mixed bean powder can be added to the noodles, which makes the taste smoother. You can also add oat flour, buckwheat flour, corn flour, etc., but the toughness of the noodles is reduced, and the cooking method is different. Home-made technology is difficult, and the overall popularity is not high.

　　Therefore, from the convenience of adding whole-grain miscellaneous beans and potatoes, rice has a slight advantage.

　　Question 5

　　Are there enough dishes to accompany the staple food?

　　Although the postprandial blood sugar response of white rice is higher than that of noodles, jiaozi and Melaleuca Cake, many people find that eating rice has better blood sugar control effect than eating these pasta, and it is also less likely to gain weight. Why is this?

　　To a large extent, this is because of different eating methods and different contents.

　　In addition to the low nutritional value of white rice, there are advantages in food collocation when eating rice. We seldom just eat a bowl of rice, but we have meat, fish, eggs, bean products, and vegetables, and usually there are more dishes than rice. This makes it easier to obtain relatively balanced nutrition.

　　When eating noodles, there is a big bowl of noodles, and there are only a few dishes and marinades. Therefore, from the perspective of fully cooperating with various dishes, rice is still slightly dominant.

　　Question 6

　　Which vitamin is more, rice or pasta? Which is safer?

　　Comparing rice with white flour one-to-one, protein and B vitamins in white flour are slightly higher. However, the disadvantages of rice are not so obvious after matching dishes. Rice with a large number of dishes, compared with noodles and cakes with few dishes, nutrition will win.

　　From the safety point of view, rice food rarely has allergic problems, while some people eat flour with the risk of "chronic gluten allergy". For these allergic people, wheat gluten will damage the intestinal mucosal barrier, which may lead to chronic allergies to other foods. Severe wheat gluten allergy may even lead to "celiac disease". Such patients can lead a normal life only if they are completely away from all foods containing flour.

　　Generally speaking, rice food and pasta have their own advantages and disadvantages. Whether it is white rice or white flour food, eating more is not conducive to preventing diabetes and cardiovascular and cerebrovascular diseases, nor to losing weight. Appropriate inclusion of whole grains is a better choice. For people who need to lose weight and prevent chronic diseases, reducing the oil and salt in the staple food, including some whole-grain miscellaneous beans and more vegetarian dishes are the key points to eat the staple food healthily.

　　Text/Fan Zhihong (director of China Nutrition Society, chief expert of science communication hired by China Association for Science and Technology)

　　These two days, a small experiment of "self-testing against coronavirus" suddenly became popular on the Internet! Experiments show that as long as you hold your breath according to the instructions in the animation, you can judge your lung function and blood oxygen level and whether you have the ability to resist coronavirus. Many people believe it and do it. So, is this experiment really reliable? "Reaching the standard" can prove that you have the ability to resist Covid-19?

[Hold your breath continuously for 24 seconds to test lung function and blood oxygen level]

　　This small test of "self-test against coronavirus" shows that as long as you can hold your breath from A to B, it means that your lung function and blood oxygen level have the ability to resist coronavirus. The reporter calculated that this breath-holding time is about 24 seconds, and most people can do it. But in fact, the length of holding your breath is influenced by many other factors, such as age, height, weight and subjective will. Experts say that the time of holding your breath reflects the state of a person’s cardiopulmonary function. Usually, as long as you hold your breath for more than 30 seconds after taking a deep breath, the doctor thinks that your cardiopulmonary function is normal.

　　Liu Hong, deputy chief physician of the Department of Thoracic Surgery, Nanjing Second Hospital, said: "Holding your breath is not a matter of time, but a matter of integrating various factors. Conventionally speaking, holding your breath for more than 30 seconds can basically tolerate a chest operation. But actually I hold my breath for 20 seconds, can’t I have a chest operation? That’s not what I said. We should combine his lung function test, heart function test and electrocardiogram. "

[Doctor: It is unscientific to verify antiviral ability by holding your breath]

　　At present, the breath-holding test is only used as a supplementary means of lung function examination in clinic. This simple and rough method is not accurate, and the formal lung function examination is much more accurate. Therefore, it is not reliable to judge whether a person has the ability to resist coronavirus just by holding his breath for a long time.

　　Liu Hong said, "I got this disease, pneumonia and lung infection. Can I have a good prognosis or a bad prognosis?". This is caused by many factors, and can not be evaluated simply by a breath-holding test. This is a very wrong conclusion. Whether another ordinary people can be infected with the corresponding diseases in public places. For example, infectious diseases such as influenza and pneumonia have nothing to do with breath-holding test, but are related to personal immunity and the amount of bacteria and viruses in the environment you are exposed to. "

　　In addition, the breath-holding test needs to be operated under the guidance of medical staff. It is unnecessary to do the breath-holding test yourself, and it will also induce risks.

　　Liu Hong said: "For example, patients with hypertension or coronary heart disease, or patients with poor lung function and asthma, these patients may induce some diseases by holding their breath. For this group of people, this kind of self-testing may bring certain risks. "

　　(Reporting by Wang Shu and Xie Jian)

　　(The copyright of this news belongs to Jiangsu Radio and Television General Station, please indicate the source.)

At the beginning of January, the cold wave has just dissipated, and this week, a new round of cold wave has struck strongly. The cold air has a long endurance, and the cold will run through the end of January. Autumn trousers can no longer be carried, and the ultimate equipment such as wool trousers and cotton trousers should be put on the upper body! China Weather Network released a national cotton trousers warning map, to see how many cotton trousers you should wear at least in your area.

The pictures in this article are all from "China Weather Network" WeChat WeChat official account

When it comes to the cold wave, everyone still remembers the boss-level cold wave in January 2016. This cold wave process is also coming, so which of the two processes is stronger? According to Bao Yuanyuan, a senior engineer of the National Meteorological Center, the cold wave process in early 2016 cooled down quickly and fell sharply; This process affected for a long time, and the temperature gradually decreased. Just like the fan’s direct blowing mode and head-swinging mode, one is simple and rude, and the other is long-lasting.

Compared with 2016, the overall degree of low temperature is slightly weaker, but the polar vortex continues to be stable in the northeast, and the temperature in the northeast is very low. Monitoring shows that the local temperature in Heilongjiang has fallen below -45℃ this morning. In the next three days (24-26), the freezing cold will continue, and the lowest temperature in most parts of Northeast China, northern Xinjiang and central and eastern Inner Mongolia will be below -28℃. Among them, Harbin’s performance is particularly outstanding, and it will be even colder than the "overlord cold wave" in 2016. The lowest temperature on 24th and 25th will reach -35℃, while the lowest temperature recorded in 2016 is -31.4℃. The temperature in the freezer of the refrigerator is generally -18℃, and these areas are even colder than the freezer, which is sour and unimaginable.

Therefore, people in the above areas can wear as much as they can. Autumn trousers, woolen trousers, cotton trousers, down jackets, and clothes that can be worn should be put on the body as much as possible. Temperature is more important than demeanor. If there are not enough cotton trousers at home, you can only rely on fat to make up.

This morning, the temperature in Beijing dropped to -12.3℃, a record low this winter. In the next three days, the minimum temperature will be below -10℃ from the eastern part of northwest China to Beijing, Tianjin and Hebei. On the morning of 24th-25th, the -10℃ line will reach Shandong and northern Henan. "Everyone is looking for her, and your mother calls you to wear cotton trousers." At this time, it is not your mother who thinks you are cold, but it is really cold. Put on your big cotton-padded jacket and trousers quickly.

Today, cold air has spread to Jiangsu, Anhui and Hubei, and will gradually move southward in the future. On the morning of 25th, the lowest temperature in Zhejiang, northwestern Jiangxi and southern Hunan also dropped below 0℃. In addition to being cold at night, the temperature hovers around the freezing point during the day, from morning to night. This week will be the coldest week in winter in the south, that is, it will be colder than the cold wave period in early January. What’s more, a wide range of rain, snow and freezing rain will be on the line soon, and it will last for several days. In big cities, Hefei, Nanjing, Wuhan, Changsha and Hangzhou, it has been rainy or cloudy for four or five consecutive days since Wednesday (24th). Cooling+rain and snow, this wave of wet and cold magic attacks is too fierce! Therefore, friends in the south, I suggest you put down your last stubbornness and put on cotton trousers. However, in the south where there is no heating, even if it is wrapped in a ball, it still shivers and can only be warmed by shaking.

Do you think the cold air will end on the 26th? The recent cold air can be described as endless. From 27th to 30th, due to the influence of supplementary cold air, the temperature in most parts of China will drop, and the lowest temperature in northern Guangxi, northern Guangdong and northern Fujian will also drop below freezing point. Come out to mix, sooner or later, people in South China, cold air is coming.

However, at this time, there are still some areas in China that can wear as much as possible, such as southern Hainan and Xishuangbanna, Yunnan, where the highest temperature is still around 30℃. At this time, don’t take selfies in shorts and sandals in the circle of friends, and be careful that southern friends who are frozen into dogs will hit you.

In short, in late January, most of China continued to be cold, and rain and snow covered a large area from northwest to south of the Yangtze River. Cooling down At present, friends should be more graceful and temperature-oriented. When cotton trousers should be on the upper body, how much can they wear!

It should also be noted that in addition to cooling down, everyone should pay more attention to the large-scale rain and snow this week. Among them, the snowfall concentration period is 24-25 and 27 days. It is estimated that the dividing line between rain and snow on the 24th is located in the northwest of Zhejiang, the south of Anhui, the middle of Hubei and the southwest of Shaanxi. On the 27th, the dividing line between rain and snow was further pressed southward to the areas of central Zhejiang, northwestern Jiangxi, southern Hunan and central Guizhou. According to the city forecast, Shanghai, Hangzhou, Changsha and other places may see snowfall.

In addition, this snowfall lasts for a long time, and the accumulated snowfall is large. The newly added snow depth is 8-25 cm, and the local area can reach more than 40 cm. Among them, Hubei, Anhui and Jiangsu have a high degree of overlap in two snowfall areas, so it is necessary to clear the snow in time to avoid the collapse of agricultural greenhouses and simple structures that may be caused by too much snow. Snow and ice may cause highways and airports in Shaanxi, Henan, Hubei, Anhui, Jiangsu and other places to be blocked. The public should pay attention to arranging travel plans in advance.

(The original title is "National Cotton Pants Warning Map Release, Look at how many you have to wear")

CCTV News:According to the official Weibo news of @ Beijing West Railway Station, according to the rainstorm warning of the Central Meteorological Observatory, from August 25th to 26th, there were heavy rainstorms in parts of eastern Sichuan, western and northern Chongqing, southern and northern Shaanxi, northwestern Hubei and western Henan, among which, there were heavy rainstorms (100-180mm) in parts of southwestern Shaanxi, northeastern Sichuan and southwestern Chongqing. In order to ensure the safe operation of passenger trains, the railway department plans to stop some trains passing through the rainstorm warning section.
In the follow-up, the railway department will pay close attention to the rainstorm (early warning) situation, take timely measures such as stopping, reopening and resuming operation, and dynamically adjust the train operation plan to ensure the safe travel needs of passengers. For specific train information, please pay close attention to the website information of China Railway 12306 or the station announcement in time, and make proper travel arrangements.

Passengers who have purchased tickets for stopped trains can apply for refund on the Internet within 30 days (including that day) from the ticket date, or return the tickets to the station with the original valid identity documents used at the time of ticket purchase (please give the vouchers to the station window staff if the reimbursement vouchers have been printed), and no handling fee is charged for the above.　 　

Jing Jing Xin Fa [2023] No.94

All relevant units:

　　In order to seize the opportunity of industrial development, integrate the advantages of resources, promote the innovation of new energy storage technology and industrial development in this city, and effectively support the construction of an international science and technology innovation center, the Beijing Municipal Bureau of Economy and Information Technology has formulated "Several Policies and Measures for Supporting the Development of New Energy Storage Industry in Beijing", which are hereby printed and distributed. Please follow them.

Beijing Bureau of Economy and Information Technology　　　　

November 23, 2023　　

Beijing’s policies and measures to support the development of new energy storage industry

　　New energy storage is an important technology and basic equipment to build a new power system, an important support to achieve the goal of peak carbon dioxide emissions and carbon neutrality, and an important field to promote new domestic energy formats and seize new international strategic heights. In order to implement the Development Plan of High-tech Industries in Beijing during the 14th Five-Year Plan period, seize the opportunities of industrial development, integrate the advantages of resources, promote the innovation and industrial development of new energy storage technologies in this city, and effectively support the construction of an international science and technology innovation center, these measures are formulated:

　　First, accelerate the innovation breakthrough of new energy storage technology

　　(A) to enhance the innovative ability of key technologies of new energy storage.

　　Encourage new energy storage enterprises to accelerate the research, development and industrialization of key technologies, material components and major equipment for key areas such as long-life and high-safety lithium-ion batteries, sodium ion batteries, flow batteries, compressed air energy storage and flywheel energy storage. Organize the implementation of the "foundation project" of the new energy storage industry, focus on the stuck links in the industrial chain to carry out key research, solve the problem of "sticking the neck" of the key core technology of the industry, and give a subsidy of up to 30 million yuan according to the proportion of not more than 30% of the investment in key research.

　　(2) Support the construction of innovative carriers in the field of new energy storage.

　　Encourage enterprises to focus on key technical fields of new energy storage, aim at industrial strategic and public technical problems, integrate superior resources in subdivided fields, promote the construction of municipal industrial innovation centers, and actively strive for the construction of national manufacturing innovation centers; Support the construction of pilot verification platform, improve the ability of quality verification and process verification of new energy storage products, and accelerate the process of engineering implementation and industrial application of new energy storage.

　　(C) to build a new pattern of integration of production and education development

　　Promote the deep cooperation between the national energy storage technology integration platform and the new energy storage enterprises in this city, promote the breakthrough and innovation of key technologies in the new energy storage field, and promote the transformation of scientific and technological achievements; Promote the all-round integration of talent training and supply and industrial development needs, and cultivate industry leading talents and compound talents to meet the needs of industrial development.

　　Second, promote the development of new energy storage industries.

　　(D) Building a new energy storage demonstration industrial park

　　Support Changping District to give full play to the advantages of "energy valley" and create a fusion innovation zone integrating production and education and central and local integration; Support Fangshan District to rely on leading enterprises in the industrial chain to create a coordinated development zone with cooperation between the central government and Beijing, Tianjin and Hebei. Encourage demonstration parks to cultivate and gather new energy storage benchmark enterprises, lay out energy storage demonstration and industrialization projects, build an industrial ecology with integrated development of R&D, production and application, and make regional energy storage industry support policies according to their own conditions to promote the agglomeration and development of new energy storage industries.

　　(E) Increase the cultivation of "specialized and innovative" enterprises.

　　Encourage professional institutions to provide public services such as diagnosis, incubation and investment for innovative small and medium-sized enterprises and "specialized and innovative" enterprises in the field of new energy storage, and reward them according to service performance; Give support to small and medium-sized enterprises in the energy storage field for the first time to "upgrade the regulations" and the output value exceeded 100 million yuan for the first time; Cultivate characteristic industrial clusters of small and medium-sized enterprises with new energy storage and guide the development of small and medium-sized enterprises with "specialization and novelty".

　　(6) Promote the industrialization projects in the field of new energy storage.

　　Give some financial support to the newly-built new energy storage industrialization projects that meet the international, national and municipal digital and intelligent standards, with a maximum of 30 million yuan; Discounts will be given to major new energy storage construction projects that are global and strategic and have obtained project loans. The discount rate will not exceed the quoted interest rate (LPR) of medium and long-term loans in the same period announced by the People’s Bank of China. In principle, the maximum annual discount amount for a single enterprise will not exceed 30 million yuan, and the discount period will not exceed 3 years.

　　(VII) Improve the intelligent green development level of new energy storage industry.

　　Support new energy storage enterprises to carry out intelligent green technology transformation and upgrading, and promote the high-quality development of the industry. Give some financial support to intelligent technical transformation projects and green technical transformation projects whose implementation effect meets the performance requirements, with a maximum of 30 million yuan.

　　(eight) to promote the coordinated development of new energy storage industry.

　　Introduce and cultivate a number of high-quality enterprises in the industrial chain to land in Beijing, Tianjin and Hebei, and improve the regional new energy storage industrial chain and supply chain system. For the new energy storage enterprises that participate in the "strong chain replenishment" action and meet the requirements, they will be rewarded according to 5% of the actual performance amount, and the maximum annual reward amount of a single enterprise will not exceed 30 million yuan.

　　Third, strengthen the application of new energy storage technologies and products

　　(nine) to promote the pilot demonstration of new energy storage.　

　　Support the pilot demonstration of new energy storage in non-crowded areas such as industrial plants, logistics parks and data centers outside the Fifth Ring Road. Support new energy storage demonstration industrial parks to carry out demonstration applications around high-security energy storage technology routes such as solid-state lithium-ion batteries and flow batteries. For manufacturing enterprises to configure new energy storage facilities in the factory or the park where they are located to achieve efficient use of energy, a maximum of 30 million yuan of incentive funds will be given according to the proportion of not exceeding 30% of the total investment included in the incentive scope; Encourage new energy storage facilities construction units to carry out small-batch verification of new technologies and new products that meet the requirements, further improve the adaptability and industrialization level of technical products, and reward them according to the proportion of less than 30% of the investment in small-batch testing, with a maximum of 10 million yuan for a single project.

　　(ten) to promote the integration of information technology and energy storage technology.

　　Support new energy storage enterprises to meet the different needs of various scenarios such as power generation side, power grid side and user side, and develop and build an efficient and safe intelligent management system by using energy digitalization technologies such as artificial intelligence, big data and cloud computing, so as to improve the intelligent operation and management level of energy storage facilities such as energy storage system perception, intelligent diagnosis and collaborative control. For the high-quality solutions that meet the needs of typical application scenarios in the energy storage field for the first time and actually land, the "first solution" will be awarded according to a certain proportion of the actual purchase amount of the non-hardware part of Xinchuang in the solution, with a maximum of 30 million yuan.

　　(eleven) to promote the integration of advanced energy storage technology and charging facilities.

　　Support the demonstration and promotion of new technologies and models such as optical storage charging and inspection, optical storage charging and replacement, and vehicle-network interaction (V2G). Focus on serving the development of new energy vehicles, increasing the consumption of green electricity, and improving the capacity of power grid resource allocation, and create an integrated innovative solution of "vehicle-pile-position"; Encourage new charging facilities to participate in power grid load regulation and control, and improve the utilization efficiency of power grid resources.

　　Fourth, strengthen the protection of innovative elements of new energy storage industry

　　(12) Promote collaborative innovation of new energy storage technologies and standards.

　　Encourage enterprises and institutions in Beijing to participate in international standardization activities and research on international standards, and integrate into the global innovation network; Support enterprises to aim at the key links, core technologies and practical applications of the industrial chain, and participate in the research and formulation of national standards and industry standards; Guide social groups such as industrial alliances to respond quickly to technological innovation and market demand, independently formulate and publish group standards, and promote the application demonstration of advanced group standards.

　　(XIII) Strengthen financial support in the field of new energy storage.

　　For the "first loan" business of small and medium-sized enterprises, discount or guarantee fee subsidy shall be given at a discount rate of not more than 1%, and the subsidy period shall not exceed one year; Support new energy storage specialized and special enterprises to quickly declare to the North Stock Exchange, and improve the efficiency of issuance and listing review; High-quality enterprises that have entered Beijing’s "specialization and innovation" special board, the national share transfer system for small and medium-sized enterprises and listed will be rewarded according to the existing policies.

　　(14) Strengthen international cooperation in the field of new energy storage.

　　Support new energy storage enterprises to explore the international market, enhance their international operation ability, encourage enterprises to actively participate in international exhibitions, speed up the layout of overseas intellectual property rights, and strive for international product certification; Support global energy storage enterprises to set up R&D centers in Beijing or cooperate with local enterprises to carry out energy storage technology R&D and industrial application; Do a good job in major events such as the global high-level forum on energy transformation, and build a platform for technological exchange and industrial cooperation with global influence.

　　(fifteen) to promote the construction of new energy storage talents.

　　Strengthen the introduction of leading talents in the new energy storage industry to provide quality services and comprehensive protection for innovative and entrepreneurial enterprises in Beijing. The introduction of special talents can be studied on a case-by-case basis; Support new energy storage enterprises to open innovation verification platforms, build training bases, provide internship opportunities for colleges and universities, and accelerate the cultivation of high-skilled talents in the energy storage industry; Encourage industrial clusters to introduce talents to key enterprises in the field of new energy storage, and provide high-quality and convenient services for children’s enrollment, settlement and housing.

On July 29th, Yang Tao, Deputy Director of the Comprehensive Department of the Ministry of Commerce, introduced the general situation of business operation in the first half of 2022 at the special press conference held by the Ministry of Commerce. He said that the business operation showed a recovery trend in the first half of the year, especially since the second quarter, with the gradual emergence of policy effects, the main business indicators stabilized and rebounded, which provided important support for stabilizing the macroeconomic market.

First, foreign trade grew rapidly. In the first half of the year, the import and export of goods reached 19.8 trillion yuan, up 9.4% year-on-year, while imports and exports increased by 4.8% and 13.2% respectively. Among them, due to unexpected factors, the growth rate of import and export dropped to 0.1% in April, and rebounded rapidly in May and June, reaching 9.5% and 14.3% respectively, showing the strong development resilience of foreign trade. It grew rapidly with major trading partners, with imports and exports to the United States, the European Union and ASEAN increasing by 11.7%, 7.5% and 10.6% respectively, and imports and exports to countries along the Belt and Road increased by 17.8%. "Travel" products grew rapidly, and the export of automobiles, shoes and bags increased by 51.1%, 31.4% and 34.6% respectively, which were 37.9%, 18.2% and 21.4% higher than the overall export growth rate respectively. Stabilizing the main body and stabilizing employment has achieved remarkable results. In the first half of the year, there were 506,000 enterprises with import and export performance, an increase of 5.5%. The import and export of private enterprises increased by 13.6%, accounting for 1.9 percentage points to 49.6%. Trade in services developed steadily. From January to May, the import and export of services reached 2.4 trillion yuan, an increase of 22%, of which exports increased by 26.3% and imports increased by 18.2%.

Second, domestic consumption has gradually recovered. In the first half of the year, the total retail sales of social consumer goods reached 21 trillion yuan, down 0.7% year-on-year. Among them, April was obviously affected by the epidemic, and the growth rate dropped to -11.1%. The decline narrowed to -6.7% in May and increased by 3.1% in June. New consumption achieved rapid development. The development trend of new consumption such as live e-commerce and contactless services is good. In the first half of the year, the online retail sales of physical goods increased by 5.6%, accounting for 25.9% of the total. Sales of new energy vehicles increased by 1.2 times. Physical commerce has picked up. The retail sales of supermarkets and specialty store increased by 4.2% and 2.8% respectively, 0.2 and 1.6 percentage points faster than the previous five months. Guaranteed supply and stable price are powerful and effective. Give full play to the role of multi-provincial joint guarantee and supply mechanism for daily necessities, strengthen market monitoring and early warning, ensure sufficient supply of daily necessities, and basically stabilize market prices. In the first half of the year, CPI rose by 1.7%.

Third, the quality of attracting foreign investment has improved. In the first half of the year, the actual use of foreign capital was 723.31 billion yuan, an increase of 17.4% in comparable terms. The investment structure is more optimized. Manufacturing and high-tech industries achieved "double promotion", and the actual use of foreign capital in manufacturing increased by 54.8%, accounting for 5.9 percentage points higher than the same period of last year to 25.4%; The actual use of foreign capital in high-tech industries increased by 33.6%, accounting for 3.8 percentage points to 35.5%. The main sources of investment grew steadily. The actual investment in the United States, Germany and Britain increased by 26.1%, 13.9% and 13.4% respectively (including some free ports, the same below), while the actual investment in South Korea and Hong Kong increased by 37.2% and 15.8% respectively. The high-level open platform has obvious driving effect. In the first half of the year, the actual use of foreign capital in 21 pilot free trade zones was 119.85 billion yuan, an increase of 16.8%, attracting nearly 16.6% of foreign capital with an area of less than four thousandths. The service industry’s foreign investment in the "1+4" demonstration pilot area increased by 15%, accounting for 34.7% of China’s service industry’s foreign investment. The foreign investment absorbed by 230 national economic development zones increased by 42.1%, accounting for 19.6%.

Fourth, foreign investment cooperation developed steadily. In the first half of the year, foreign non-financial direct investment reached 351.67 billion yuan, up 0.8% year-on-year (equivalent to 54.24 billion US dollars, up 0.6%), and the turnover of foreign contracted projects reached 458 billion yuan, up 4.2%. The "Belt and Road" investment cooperation has been deepening. Direct investment in countries along the Belt and Road reached 65.03 billion yuan, up 4.9%. The investment structure was continuously optimized. Investment in wholesale and retail, scientific research and technical services and manufacturing increased by 21.3%, 15.6% and 13% respectively.

V. Multilateral and regional cooperation is deepening. The 12th WTO Ministerial Conference achieved fruitful results. The promotion strategy of the free trade zone was fully implemented. Promote the high-quality implementation of the Regional Comprehensive Economic Partnership Agreement (RCEP) and continuously achieve new results. Actively promote the accession to the Comprehensive and Progressive Trans-Pacific Partnership Agreement (CPTPP) and the Digital Economy Partnership Agreement (DEPA). China — Cambodian FTA, China — New Zealand FTA Upgrade Protocol came into effect. Reach an early harvest arrangement for a free trade agreement with Nicaragua. Regional cooperation has achieved positive results. Successfully held the 12th BRICS Economic and Trade Ministers’ Meeting. Promote the APEC Trade Ministers’ Meeting to reach a consensus.

　　Reference News Network reported on February 18, Japan’s "Daily News" published an editorial on February 17, pointing out that the stick of protectionism in the United States harms the interests of all countries.

　　The editorial pointed out that last year, the United States introduced measures aimed at prohibiting semiconductor trade with China, and in order to block semiconductor production in China, the United States also asked Japan and the Netherlands, which are strong in the field of chip equipment manufacturing, to take a unified step.

　　What worries Japan, the United States and Europe is that China’s military technology has been further strengthened with the improvement of artificial intelligence and other fields. According to WTO rules, there are cases where trade can be restricted for security reasons.

　　But in the digital society, many cutting-edge technologies can be used for both military and civilian purposes. If, in the name of security, the scope of exceptions is expanded endlessly, the free trade mechanism may collapse.

　　The editorial believes that the government can use export restrictions as a means of defense, but only if the move is well-founded and carried out within the framework of international cooperation.

　　For a long time, both Japan and the United States have emphasized the importance of rule-based economic activities, and (Japan and the United States) cannot destroy its value by itself.

　　In addition, it is necessary for all parties to consider the impact of restrictive measures on the economy. About 30% of Japanese semiconductor manufacturing equipment is exported to the China market. Restricting exports to China will have a great impact on enterprises and investors.

　　The Ministry of Economy, Trade and Industry should further study the specific contents of what types of equipment are restricted for export. In order to eliminate people’s concerns about protectionism, easy-to-understand explanations and high transparency are indispensable.

And China is bound to object to this. China has been exercising its influence with resources and markets. Restriction measures related to chips may lead them to take countermeasures to restrict the export of important materials such as rare metals.

　　Major countries have established export management frameworks to prevent the proliferation of technologies that can be converted into military applications. However, with the intensification of confrontation between the United States, Europe and Japan and countries such as China and Russia, it is difficult for such frameworks to play a role.

　　In order not to damage the benefits brought by the free trade mechanism, it is necessary to balance security and economic activities. What Japan, sandwiched between the United States and China, should do is to formulate a multi-level strategy to rebuild the trade order.