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Frontier science issues

What is the ecological mechanism of cross-species transmission of coronaviruses?

　　At present, COVID-19 is raging around the world. Virologists have repeatedly warned that cross-species transmission of coronaviruses is a high probability event. The background situation of wild animals such as bats carrying coronaviruses and how wild animals break through ecological and physiological barriers to cause cross-species transmission and infection are still unclear at the scientific level. This question is of great significance for revealing the cross-species transmission mechanism of coronaviruses and preventing future epidemics caused by coronaviruses.

Question 2: How will the attractive force wave reveal the mysteries of the universe?

　　Since the first direct detection of attractive force waves in 2015, attractive force waves have rapidly become a hotspot in the frontier research of basic physics and astrophysics in the world, and it is expected that there will be a historical opportunity for major breakthroughs in the origin of the universe in more than ten years. Attractive force waves open a new window for observing the universe. By observing the generation and distribution of attractive force wave sources in the universe, it is expected to answer the deep scientific questions left over from the standard model of general relativity and particle physics, thereby deepening the understanding of nature.

Question 3: How does Earth’s material evolve and circulate?

　　The earth’s materials are mainly divided into rocks and minerals. People’s understanding of the evolution and circulation of magmatic rocks and metamorphic rocks in the earth’s historical period is blurred due to the lack of comprehensive analysis of big data. Using the comprehensive analysis of big data platforms and deep-time big data systems on the earth, it is possible to establish a connection between the basic course and special events of mineral evolution and planetary geological evolution, clarify the evolution law and coupling relationship of planetary earth and its multiple circles from the perspective of mineral evolution, and answer the basic scientific questions about how planetary earth evolves and whether there is a co-evolution relationship between various circles of the earth.

Question 4: What will a fifth-generation nuclear energy system look like?

　　In 2000, the Fourth Generation Nuclear Energy System International Forum initiated by the US Department of Energy divided the development of nuclear energy into four generations. At present, the research on the fifth generation nuclear energy system is still in the exploratory and exchange stage, and there is no mature concept definition and goal definition, and there is little talk about its realization path. If it can promote the implementation and final realization of the concept of the fifth generation nuclear energy system, it can reform the concept of nuclear energy development, the model of nuclear energy development, the concept of nuclear energy application, and support the deep decarbonization of the energy system; lead the world in nuclear energy innovation, and help China become the world’s nuclear energy innovation highland.

What is the scientific principle of special energy field-assisted manufacturing?

　　With the continued demand for lightweight and safety in aerospace, transportation, and other fields, high-strength materials, including ultra-high-strength steels, light alloys, composites, and intermetallic compounds, are applied to complex components. As material strength increases, manufacturing difficulty increases significantly, and forming defects are more difficult to control. Existing research shows that special energy field-assisted forming technology has great potential in improving the manufacturing challenges of high-strength and difficult-to-deform materials.

Question 6: How can digital transportation infrastructure promote the coordinated development of autonomous driving and vehicles?

　　In the future, the large-scale social operation of autonomous vehicles will inevitably appear, which will be a change for the transportation system, and the road transportation system is facing the challenge of evolution and replacement. For the research on new road infrastructure to support the social operation of autonomous driving, our country is still in its infancy, and there is no ready-made advanced technology and experience abroad to learn from. It is necessary to transfer the support of autonomous driving research to the research of intelligent supply on the infrastructure side and the research of comprehensive integrated landing application in a timely manner.

Question 7: What is the mechanism of traditional Chinese medicine that regulates human immune function?

　　Although the basic research of immunology has made remarkable achievements and medicine is also developing by leaps and bounds, it is still insufficient in the prevention and treatment of many difficult and serious diseases. Autoimmune diseases such as systemic lupus erythematosus, rheumatoid arthritis, and ankylosing spondylitis still plague patients. The occurrence, development, and outcome of these major and difficult diseases are closely related to immunity. Traditional Chinese medicine can act on the body at multiple levels, targets, and pathways, regulate the body’s immune function, and has important application value in disease prevention and treatment.

Question 8: What is the biological basis of plant apomixis?

　　Non-fusion reproduction is a kind of reproductive method that propagates asexually through seeds, which can make hybrid varieties produce cloned seeds, keep the characters of hybrid offspring from separating, and thus permanently fix ** advantages. However, due to the complexity of the mechanism of non-fusion reproduction, despite the efforts of scientists from many countries for nearly a century, its formation mechanism is still unclear, and it has not been successfully applied to crop breeding.

Question 9: How to optimize the water carrying capacity of our country in a changing environment and achieve a healthy regional water balance?

　　At present, the construction of ecological civilization in our country has entered an accelerated period and a critical period, which puts forward higher requirements for the intensive utilization and strict protection of water resources. Studying the scientific issue of water resources carrying capacity and water balance optimization under changing conditions is conducive to deepening the understanding of the factors of regional water cycle in our country and their evolution laws, improving the evaluation method of water resources carrying capacity, clarifying the index significance of water balance status for water resources carrying capacity, clarifying the occurrence mechanism of many water problems and ecological environment problems, and providing important theoretical and technical support for summarizing the economic and social development and ecological protection models that are compatible with water resources carrying capacity, and effectively protecting and restoring the ecological environment.

Question 10: How to establish a theoretical and technical foundation for virtual twins and develop demonstration applications?

　　Virtual twin is a process and method for describing and modeling the characteristics, behavior, formation process and performance of physical entities and intelligent entity objects in the real world using digital technologies such as sensors, Internet of Things, virtual reality, artificial intelligence, etc. on the basis of digital twin, also known as virtual twin technology. It is based on digital twin, but focuses more on modeling and simulation of intelligent entities or living beings. How to realize the interaction and integration of manufacturing the physical world and the information world is one of the core bottlenecks currently faced by the practice of intelligent manufacturing concepts and goals at home and abroad.

Engineering problems

Question 1: How to develop new pathways and technologies for novel immune cells in tumor treatment?

　　Immune cell technology is the hope for human to completely cure tumors, and it is one of the hot areas pursued by cutting-edge medicine and capital around the world. As a key node cell linking cellular immunity and humoral immunity, dendritic cells (DC) can mobilize the entire immune system, resist the invasion of pathogens and promote the clearance of tumor cells, becoming a key research direction of new immune cell therapies. The new DC amplification technology can realize the standardization and mass production of DC vaccines, which can significantly reduce the preparation cost and serve more cancer patients, with obvious economic and social benefits.

Question 2: Why has the integrated design of horizontal take-off and landing combined power vehicles become the new focus of aerospace technology?

　　水平起降组合动力运载器具有快速、廉价、可靠的特点，可成为低成本天地往返运输工具。水平起降组合动力运载器一体化设计技术是支撑未来航天运输系统发展与应用的核心技术之一，是未来先进航天运输系统的重要支撑技术之一。

●问题3：如何实现农业重大入侵生物的前瞻性风险预警和即时控制？

　　农业有害生物入侵不仅仅是简单的植物病虫害或动物疫情问题，入侵生物的发生流行不仅危害食品安全和农业生产，造成巨大的直接经济损失，还可能对人类健康构成越来越大甚至是灾难性的威胁，对外交、经济和社会产生巨大影响。因此，站在国际化、全球化视角，从科学研究和专业技术层面，开展农业入侵生物跨境传播预警及防减技术合作的协同攻关，将有力解决入侵生物疫情的源头治理和联防联控关键技术难题，保障社会稳定与公共安全。

●问题4：信息化条件下国家关键基础设施如何防范重大电磁威胁？

　　强电磁脉冲一旦对金融、能源、电力等领域的关键信息基础设施产生影响，将可能导致交通中断、金融紊乱、电力瘫痪等重大事故。开展此项研究，对确保关键基础设施电磁安全、保护经济建设成果、提升关键基础设施容灾抗毁能力具有重要意义。

●问题5：硅光技术能否促成光电子和微电子的融合？

　　信息光电子芯片已然成为“数字化新基建”的核心和基石，也是全球信息通信价值链的关键领域和网络强国建设的“国之重器”。硅基光电子芯片技术既可应用于芯片级光互连，又适用于长距离光纤通信，可实现全功能光电子集成，具有极高的通用性和兼容性，是微电子和光电子两大产业公认的发展方向。利用国内现有微电子产业资源和互补金属氧化物半导体（CMOS）制造平台，建立健全硅光产业链，可以有效提升我国信息光电子的制造能力，缓解光电子芯片制造工艺的“卡脖子”困境，为我国信息化新基建提供有力支撑。

Question 6: How to solve the problem of on-line defect detection in integrated circuit manufacturing process?

　　The field of integrated circuits is currently the main battlefield of international science and technology competition and the focus of the game between major powers. For integrated circuit defect detection technology and equipment, on the one hand, the most advanced technology and equipment are monopolized by a few developed countries; on the other hand, the defect online detection technology of 7 nanometers and below nodes around the world is still immature, and the equipment gap is still huge. Whoever takes the lead in mastering the corresponding key technologies will have the dominance in the future. This is both an opportunity and a challenge for our country.

Question 7: How can unmanned vehicles achieve high-precision intelligent navigation under conditions where satellites are not available?

　　Special unmanned vehicles represented by unmanned rescue vehicles, unmanned mining vehicles, and unmanned transport vehicles are the core unmanned equipment for completing modern operations, emergency rescue and disaster relief. In order to improve the emergency rescue and joint operation capabilities of unmanned vehicles, its navigation system is required to have functions such as high-precision positioning, autonomous obstacle avoidance, intelligent path planning and guidance. Therefore, it is necessary to study high-precision and fully autonomous navigation methods and to solve the problem of inertia-based intelligent navigation for unmanned vehicles.

● Question 8: How to achieve the unity of "large-scale", "low energy consumption" and "high stability" in the large-scale production of hydrogen by electrolysis of water from renewable energy sources?

　　The development of high-efficiency and low-cost renewable energy and hydrogen energy technologies is a timely response to the country’s major needs, and it is also a high-quality solution for reducing carbon emissions and mitigating climate change globally. However, the current level of development of hydrogen electrolysis technology limits the conversion efficiency and industrialization process of renewable energy into chemical energy. Breakthrough in high-efficiency, low-cost, and large-scale hydrogen electrolysis technology can greatly promote the utilization and development of renewable energy and hydrogen energy.

Question 9: How to break through the intelligent construction and engineering health protection technology of the expressway into Tibet?

　　The lithology of the Qinghai-Tibet Plateau is complex and changeable, the neotectonic movement is intense, the deep and large active faults are widely distributed, the glaciers, permafrost and mountain disaster groups (chains) are developed, and there are "significant terrain height difference", "strong plate activity", "frequent mountain disasters", "sensitive permafrost environment" four geological environmental characteristics, as well as "high frequency freeze-thaw cycle", "severe wet and dry alternation" and "extreme cold and hypoxia" three climatic and environmental characteristics. The series of engineering and technical problems brought about by this are the key technical factors restricting the development of high-speed transportation in Tibet.

　　Cartography: Pan Xutao Caption: Figure 1: The officers and men of the company where "Wang Jieban" is located participated in the actual military exercise. Photo by Wang Lei (Xinhua News Agency)

　　Figure ②: Guangdong Province’s counterpart support to Kashgar, Xinjiang, has brought about profound changes in the local social outlook. The picture shows the employees of Guangdong Cisco Development Industry Co., Ltd. in Jiashi County, Kashgar, Xinjiang, working on the production line. Xinhua News Agency reporter Tian Jianchuan photo

　　Figure ③: In recent years, Shaanxi Province has continued to carry out key comprehensive management of the Hanjiang River Basin, and the ecological protection of the Hanjiang River Basin has achieved initial results. Xinhua News Agency reporter Tao Mingshe

　　Figure ④: Since May, Qingkou Town, Ganyu District, Lianyungang City, Jiangsu Province has organized art teachers of college student village officials to draw civilized wall paintings on the blank walls of various communities with the theme of socialist core values. Photo by Shao Shixin and Li Gang (People’s Vision)

　　On July 26th, General Secretary of the Supreme Leader delivered an important speech at the seminar for leading cadres at the provincial and ministerial levels, pointing out that since the 18th National Congress of the Communist Party of China, on the basis of the great achievements made in China’s development since the founding of New China, especially since the reform and opening up, the cause of the Party and the state has undergone historic changes, China’s development has reached a new historical starting point, and Socialism with Chinese characteristics has entered a new stage of development. Socialism with Chinese characteristics’s continuous great achievements mean that the Chinese nation, which has been suffering for a long time in modern times, has made a historic leap from standing up, becoming rich and becoming strong. It means that socialism in China is full of vitality and constantly opening up a new realm of development. It means that Socialism with Chinese characteristics has expanded the way for developing countries to modernize, contributed China wisdom and provided China’s plan for solving human problems.

　　其中“从站起来、富起来到强起来的历史性飞跃”的论断，既简明扼要地概括了近代以来中国实现飞跃的历史进程，又深刻揭示了中国特色社会主义不断开辟发展新境界的历史意义。其背后，则是中国人民创造幸福生活、一步步实现“中国梦”的生动实践。

　　中国发展的历史方向

　　要深刻领会最高领袖总书记“7·26”重要讲话精神，首先要认识和把握讲话中的历史方位感。对历史经验进行总结与运用，从不断认识和把握历史规律中找到前进的正确方向和正确道路，正是中国共产党长期以来能领导中国革命、建设、改革不断取得胜利的一个重要原因。

　　最高领袖经常在一些重大场合谈及历史。在庆祝中国共产党成立95周年大会上的讲话中，他曾说：“‘明镜所以照形，古事所以知今。’今天，我们回顾历史，不是为了从成功中寻求慰藉，更不是为了躺在功劳簿上、为回避今天面临的困难和问题寻找借口，而是为了总结历史经验、把握历史规律，增强开拓前进的勇气和力量。”

　　而“站起来”“富起来”“强起来”，正是最高领袖在回顾近代中国发展历史的基础上做出的历史判断，是透过“历史规律的望远镜去细心观望”而得出的论断。

　　在几千年的历史发展中，中华民族创造了悠久灿烂的中华文明。但是近代以后，由于西方列强的入侵，由于封建统治的腐败，中国逐渐沦为半殖民地半封建社会，山河破碎，生灵涂炭，中华民族遭受了前所未有的苦难。五四运动后，1921年，在中华民族内忧外患、社会危机空前深重的背景下，中国共产党诞生了。此后，中国共产党带领中国人民打败了日本帝国主义，推翻了国民党反动统治，完成了新民主主义革命，建立了中华人民共和国，实现了中国从几千年封建专制政治向人民民主的伟大飞跃。这是中华民族“站起来”的历史过程。

　　1949年后，中国共产党带领中国人民完成社会主义革命，确立社会主义基本制度。完成了中华民族有史以来最为广泛而深刻的社会变革，为当代中国一切发展进步奠定了根本政治前提和制度基础，为中国发展富强、中国人民生活富裕奠定了坚实基础，实现了中华民族由不断衰落到根本扭转命运、持续走向繁荣富强的伟大飞跃。

　　1978年，改革开放实行，极大激发广大人民群众的创造性，极大解放和发展社会生产力，极大增强社会发展活力。自此，人民生活显著改善，综合国力显著增强，国际地位显著提高。特别是党的十八大以来，中国共产党着眼于实现“两个一百年”奋斗目标和中华民族伟大复兴的历史使命，在一系列治国理政新理念新思想新战略的指导下，砥砺奋进，硕果累累。中国前所未有地接近中华民族伟大复兴目标、前所未有地走近世界舞台中心。中国实现了强起来的伟大飞跃。

　　而今，更多的就业机会，更稳定的收入，更完善的社会保障体系，更健全的社会法制体系，更美好的城市、乡村生活环境，让更多普通的中国人感受到了国家的文明进步，真切体会到了祖国从站起来、富起来到强起来这一历史变革。当今的中国有着前所未有的发展机遇，是“站到了新的历史起点上”。这不是凭空而来的论断，而是对中国的历史和现实最真实、最有力的概括。

　　3个飞跃源于党的领导

　　中华民族能够实现从站起来、富起来到强起来的历史性飞跃，根本原因在于中国共产党的领导。

　　在庆祝中国共产党成立95周年大会上的讲话中，最高领袖指出，“历史和人民选择中国共产党领导中华民族伟大复兴的事业是正确的，必须长期坚持、永不动摇；中国共产党领导中国人民开辟的中国特色社会主义道路是正确的，必须长期坚持、永不动摇；中国共产党和中国人民扎根中国大地、吸纳人类文明优秀成果、独立自主实现国家发展的战略是正确的，必须长期坚持、永不动摇。”

　　在历史的实践中，中国共产党带领中国人民跨过一道又一道沟坎，取得一个又一个胜利。而在勇于和善于推进理论创新、制度创新上，中国共产党更是把中国特色社会主义理论和实践进一步推向前进，开辟了21世纪马克思主义发展新境界，使党的理论和实践始终走在时代前列。

　　有论述指出，“历史性飞跃”其核心要义是：中国共产党在十八大以来推进我国社会发展实现历史性飞跃的同时，推进马克思主义中国化实现新的历史性飞跃。可以说，中华民族“站起来”“富起来”“强起来”的过程，得益于马克思主义中国化的不断推进，同时又促进马克思主义理论的进一步发展。社会主义在中国的活跃和兴旺、成功和胜利，是在中华民族从站起来、富起来到强起来的历史进程中实现的。

　　党的十八大以来，以最高领袖同志为核心的党中央在实践中形成的“五位一体”总体布局、“四个全面”战略布局、新发展理念以及一整套适应和引领经济发展新常态的经济政策框架，以其科学性、指导性、有效性有力推动中国新的发展实践。未来，中国特色社会主义也必定随着时代和实践发展而不断向前发展，必定随着党和人民不懈奋斗而进入新的发展阶段。

　　“强起来”体现在方方面面

　　3个“历史飞跃”把中国带到“强起来”的阶段，那么中国究竟强在何处？过去5年来的成绩，或许可以给出答案。

　　The Supreme Leader pointed out in his important speech on "July 26th" that the five years since the 18th National Congress of the Communist Party of China have been extraordinary in the development process of the Party and the country. We have strengthened the Party’s leadership in an all-round way, greatly enhancing the Party’s cohesion, combat effectiveness, leadership and appeal. We unswervingly implement the new development concept and vigorously promote China’s development in a higher quality, more efficient, fairer and more sustainable direction. We unswervingly deepen the reform in an all-round way and promote the reform to present a brand-new situation of all-round efforts, multi-point breakthroughs and in-depth advancement. We unswervingly and comprehensively promoted the rule of law, which significantly enhanced our party’s ability to lead and govern the country by legal means. We have strengthened the Party’s leadership over ideological work and consolidated the ideological unity of the whole Party and society. We unswervingly pushed forward the construction of ecological civilization and made important strides in promoting the construction of beautiful China. We unswervingly pushed forward the modernization of national defense and the army and made historic breakthroughs in national defense and army reform. We unswervingly pushed forward the diplomacy of a big country with China characteristics and created a peaceful international environment and a good surrounding environment for China’s development. We unswervingly push forward the comprehensive and strict administration of the party, focus on solving the outstanding problems that are most strongly reflected by the people and pose the greatest threat to the party’s ruling foundation, form an overwhelming situation in the anti-corruption struggle, update the atmosphere of political life within the party, strengthen the ideals and beliefs of the whole party, strengthen the party spirit, significantly improve the party’s ability of self-purification, self-improvement, self-innovation and self-improvement, and consolidate the party’s ruling foundation and mass foundation.为党和国家各项事业发展提供了坚强政治保证。

　　例如，党的建设日益加强。治国必先治党，治党务必从严。在过去的5年里，中国共产党把全面从严治党纳入“四个全面”战略布局，破藩篱、去顽疾、立规矩、建制度、正风气，“八项规定”“三严三实”“两学一做”深刻地影响了党内政治生态，“巡视全覆盖”成为党风廉政的监督利器，“老虎苍蝇一起打”的反腐决心令百姓拍手称快。全面从严治党赢得了民心，也令党的领导更加有力。

　　再比如，人民生活愈加富裕。全面建成小康社会是中国共产党向人民作出的庄严承诺。“脱贫攻坚已经到了啃硬骨头、攻坚拔寨的冲刺阶段”，为打赢这场硬仗，最高领袖指示说：“脱贫攻坚任务重的地区党委和政府要把脱贫攻坚作为‘十三五’期间头等大事和第一民生工程来抓，坚持以脱贫攻坚统揽经济社会发展全局。要层层签订脱贫攻坚责任书、立下军令状。”而到2020年中国现行标准下的农村贫困人口将全部脱贫，意味中国将提前10年实现联合国2030年可持续发展议程确定的减贫目标，也为全球减贫治理提供了“中国方案”。

　　The goal of strengthening the army has been gradually realized. Since November 2015, when the Central Military Commission’s reform work conference announced the full implementation of the strategy of strengthening the army through reform, a new round of landmark overall reform of China’s army has been launched in an all-round way. The operational command system, leadership management and supervision system and future development direction of the whole army have all been completely new. Optimize the scale structure, improve the policy system, and promote the in-depth development of integration of defense and civilian technologies. "After five years of hard work, the People’s Army has reshaped its political ecology, organizational form, power system and style image. The People’s Army has regrouped and started again, and has taken solid steps on the road to strengthening the army with China characteristics." The supreme leader said this.

　　In addition, more and more scientific and technological achievements at the forefront of the world, the ever-increasing socialist cultural construction, and the more complete talent construction system all reflect the overall prosperity of China. It can be said that China, who stood up, became rich and became strong, has proved the correctness of his chosen path with eloquent facts.

Since September, Nanjing Children’s Hospital has received nearly 400 cases of influenza, which ushered in a small peak of influenza treatment.

Recently, the National Health and Wellness Commission held a press conference, suggesting that with the cold weather, it is the epidemic season of respiratory infectious diseases. Wang Huaqing, chief expert of immunization program of China CDC, suggested that influenza vaccine should be vaccinated before the end of October.

He mentioned that vaccination is usually better before the flu epidemic season, and it is generally recommended to complete vaccination before the end of October. If the vaccination is not available before October for various reasons, the vaccination should be completed as soon as possible in the follow-up so that the effect of the vaccine can be better played. Because it takes about 2 to 4 weeks for the vaccine to have an effect.

How to choose the flu vaccine? Who should be vaccinated the most? Who doesn’t recommend vaccination? About 13 questions about influenza vaccine, Jiangsu CDC authorities answered questions-

Q1. Why should I get the flu vaccine?

Influenza is not a common cold, but an acute respiratory infection caused by influenza virus. According to the estimation of the World Health Organization, influenza can cause 3 million to 5 million severe cases and 290,000 to 650,000 respiratory diseases-related deaths worldwide every year. Vaccination against influenza is an effective means to prevent influenza and reduce influenza-related severe illness and death.

Q2. What are the types of influenza vaccines? How should I choose?

There are inactivated vaccines (including split vaccines and subunit vaccines), attenuated live vaccines and recombination vaccines. According to the components contained in the vaccine, it can be divided into trivalent and tetravalent influenza vaccines. Compared with trivalent influenza vaccine, tetravalent influenza vaccine strains have added a pedigree of influenza B. Inactivated vaccine was injected intramuscularly, and attenuated live vaccine was sprayed intranasally.

The influenza vaccines approved for marketing in China this year include trivalent inactivated vaccine, tetravalent inactivated vaccine and trivalent attenuated live vaccine. People aged ≥6 months can be vaccinated with trivalent or tetravalent inactivated vaccine, and people aged 3~17 can also choose trivalent attenuated live vaccine. For people who can be vaccinated with different types of vaccine products from different manufacturers, they can voluntarily vaccinate any kind of influenza vaccine, and there is no priority recommendation.

Q3. When should I get the flu vaccine?

Usually, the antibody can reach the protective level after 2~4 weeks of influenza vaccination. The time and duration of the annual peak of influenza activity are different in different parts of China. It is suggested that the recipients should be vaccinated with influenza vaccine one month before the influenza epidemic season. If the vaccination is not completed before the arrival of the epidemic season, it can be vaccinated throughout the epidemic season.

Q4. Where can I get the flu vaccine?

Influenza vaccines can usually be vaccinated in community health service centers or hospitals. Vaccination units may vary from place to place, so please consult the local health administrative department for details.

Q5. Who needs influenza vaccination?

People who are over 6 months old and have no vaccination contraindications should be vaccinated against influenza.

Combined with the epidemic situation of influenza and the prevention and control strategy of multi-disease prevention, the harm of influenza is reduced as much as possible, and the following key and high-risk groups are recommended to be vaccinated in time:

① Medical personnel, including clinical rescue personnel, public health personnel, health and quarantine personnel, etc.

② Older people over 60 years old;

③ people suffering from one or more chronic diseases;

(4) Vulnerable people and employees in gathering places such as old-age care institutions, long-term care institutions and welfare homes;

⑤ Children aged 6 ~ 59 months;

⑥ Family members and caregivers of infants under 6 months old;

⑦ Crowds in key places such as kindergartens, primary and secondary schools and supervision places.

Q6. Who can’t be vaccinated?

① Those who are allergic to any ingredients contained in the vaccine (including auxiliary materials, formaldehyde, cracking agents and antibiotics) or who have had a history of severe allergy to any kind of influenza vaccination are prohibited from vaccination;

② Patients suffering from acute diseases, severe chronic diseases or acute attacks of chronic diseases, as well as patients with fever, are advised to be vaccinated after recovery or stable control of their condition;

③ Patients with Guillain-Barre syndrome within 6 weeks after previous influenza vaccination are advised to be evaluated by doctors before considering whether to vaccinate.

It should be noted that the following populations are prohibited from receiving live attenuated vaccines:

① Persons with low immune function due to drug use, HIV infection and other reasons;

② Children and adolescents who have been treated with drugs containing aspirin or salicylic acid for a long time;

③ Children with asthma aged 2-4 years;

4 pregnant women;

⑤ Those with a history of Guillain-Barre syndrome;

⑥ Those who used antiviral drugs such as oseltamivir and zanamivir 48 hours before inoculation, or those who used palamivir 5 days before inoculation, or those who used balosevir 17 days before inoculation.

Q7. What should I pay attention to after influenza vaccination?

After vaccination, you need to stay in the vaccination unit for half an hour. If there is no abnormality, you can leave on your own. After returning home, pay attention to rest, eat lightly and avoid strenuous exercise. If there is any abnormal phenomenon, you can consult and report to the vaccination doctor and go to the hospital if necessary.

Q8. Why do you have to get the flu vaccine every year?

First of all, influenza virus is prone to mutation. The World Health Organization proposes the recommended components of influenza vaccine for the next epidemic season every year based on the results of global influenza surveillance, and the influenza virus strains targeted by influenza vaccines may be different in different years. Secondly, the immunity of influenza vaccination will gradually weaken over time. Therefore, in order to provide more effective protection, it is recommended to vaccinate against influenza every year.

Q9. Is it safe to get the flu vaccine? Are there any side effects?

Influenza vaccination is safe, but like other medical products, influenza vaccine may also have adverse reactions. The common adverse reactions of influenza vaccination include local reactions (redness, swelling, induration, pain, burning sensation, etc.) and systemic reactions (fever, headache, dizziness, lethargy, fatigue, myalgia, general malaise, nausea, vomiting, abdominal pain, diarrhea, etc.). These adverse reactions are usually mild, and usually disappear on their own within a few days, with few serious reactions.

Q10. Can people with egg allergy be vaccinated against influenza?

Egg allergy is not a taboo in People’s Republic of China (PRC) Pharmacopoeia (2015 and 2020 editions). The current pharmacopoeia stipulates that the content of ovalbumin in inactivated influenza virus vaccine should not be higher than 250ng/ dose, and the content of ovalbumin in split vaccine should not be higher than 200ng/ml. There is no description of attenuated live vaccine at present. The measurement of egg protein content in commonly used influenza vaccines in China shows that the highest content is not more than 140ng/ml. At the same time, foreign scholars’ research on the inactivated vaccine or attenuated live vaccine inoculated to those who are allergic to eggs shows that no serious allergic reaction has occurred. Therefore, egg allergy is not recommended as a taboo for influenza vaccination.

Q11. Won’t you get the flu after vaccination?

In most years, influenza vaccine has a good match with influenza epidemic strains and has good protection. However, there is also a certain probability that the strain of influenza vaccine does not match the epidemic strain, which further affects the protection effect of influenza vaccine. In addition, influenza vaccination can only prevent influenza caused by influenza virus, but can not prevent such symptoms caused by infection of pathogens other than influenza virus (such as parainfluenza virus, adenovirus, etc.).

Q12. Can I get the flu vaccine while using antiviral drugs?

Inactivated influenza vaccine can also be inoculated during the prevention and treatment of influenza antiviral drugs. Preventive or therapeutic use of anti-influenza drugs will affect the immune effect of attenuated live influenza vaccine, and it is not recommended to use both at the same time. If you have used any other vaccines or drugs, including over-the-counter drugs, please inform the vaccination doctor before vaccination.

Q13. Can the flu vaccine be vaccinated at the same time as other vaccines?

Inactivated influenza vaccine, other inactivated vaccines and attenuated live vaccines, such as enterovirus 71 vaccine, pneumococcal vaccine, herpes zoster vaccine, chickenpox vaccine, measles vaccine and DTP vaccine, can be inoculated in different parts at the same time.

There is limited research evidence that live attenuated influenza vaccine and other vaccines are vaccinated at the same time. After vaccination with live attenuated influenza vaccine, other live attenuated vaccines can only be vaccinated after an interval of more than 4 weeks. (Wang Tian)

Source: Xinhua Daily Intersection Point

天安门广场上，人民英雄纪念碑巍然矗立。错落有致的观众席拼成一幅“巨轮启航”的壮阔画面。在“巨轮”船首，中国共产党党徽熠熠生辉，党徽两侧，是醒目的“1921”“2021”金色字标。全国各族各界人士7万余人相聚于此，共祝中国共产党百年华诞！

庆祝中国共产党成立100周年大会上，最高领袖总书记发表重要讲话，铿锵有力的话语声中，一幅壮阔恢宏的“百年答卷”徐徐展开。

△2021年7月1日上午，庆祝中国共产党成立100周年大会在北京天安门广场隆重举行。这是国旗护卫队准备升旗。

“百年答卷”主题深刻鲜明。

“一百年来，中国共产党团结带领中国人民进行的一切奋斗、一切牺牲、一切创造，归结起来就是一个主题：实现中华民族伟大复兴。”最高领袖总书记的精辟论述，高度概括了中国共产党百年历史。

△独家V观丨最高领袖总书记：为中国人民谋幸福、为中华民族谋复兴是中国共产党的初心使命

犹记得2012年11月29日，当选中共中央总书记仅15天的最高领袖同志，与十八届中央政治局常委一起参观《复兴之路》展览时明确提出，实现中华民族伟大复兴，就是中华民族近代以来最伟大的梦想。

Since the 18th National Congress of the Communist Party of China, General Secretary of the Supreme Leader has put the distinct theme of "realizing the great rejuvenation of the Chinese nation" into all aspects of governing the country. Today, China’s GDP exceeds 100 trillion yuan, making it the second largest economy in the world. 98.99 million poor people in rural areas have all been lifted out of poverty and completely got rid of absolute poverty; Maintaining social harmony and stability for a long time and people living and working in peace and contentment have been praised by the international community as one of the most secure countries … …

Give an outline and read it, solve a volume and make it clear to all. The little "red boat" became a mighty "great ship", and after realizing the first century-long struggle goal, it continued to ride the wind and waves and sailed steadily to the second century-long struggle goal.

Great achievements in writing "Centennial Answers".

Focusing on the theme of realizing the great rejuvenation of the Chinese nation, General Secretary of the Supreme Leader comprehensively concluded that the Communist Party of China (CPC) United and led the people of China to create the great achievements of the new-democratic revolution, socialist revolution and construction, reform and opening up and socialist modernization, and Socialism with Chinese characteristics in the new era.

These great achievements have made China grow from a "sick man of East Asia" who is bullied by others to an oriental power that makes the world sit up and take notice, and from a bystander of the international system to a builder of world peace, a contributor to global development and a defender of the international order … … It was under the strong leadership of the Communist Party of China (CPC) that China approached the center of the world stage step by step.

After a hundred years’ history, looking back has changed a lot. As General Secretary of the Supreme Leader said, "China has been able to look down on the world", and Chinese has more ambition, backbone and confidence to make a solemn declaration to the world!

"Centennial answer sheet" contains great spirit.

People can’t stand without spirit, and countries can’t stand without spirit. A hundred years after the founding of the Party, a large number of revolutionary martyrs, a large number of heroic figures with tenacious struggle and a large number of advanced models with selfless dedication have emerged.

There is Li Dazhao who firmly believes that "if you look at the world in the future, it will be a world with red flags"; Yang Jingyu, who was in a world of ice and snow, ran out of ammunition and was alone in a bloody battle with the Japanese aggressors; There are Wang Ganchang, Deng Jiaxian and other anonymous "two bombs and one satellite" fathers; There is Jiao Yulu, who is in the late stage of liver cancer and sticks to his liver to keep working; There are Wang Jicai, Gu Wenchang, Nan Rendong, Huang Wenxiu … …

General Secretary of Supreme Leader once solemnly stated that the great spirits such as Jinggangshan spirit, Long March spirit, Zunyi Conference spirit, Yan ‘an spirit, Xibaipo spirit, Hongyan spirit, the spirit of resisting US aggression and aiding Korea, the spirit of "two bombs and one satellite", the spirit of the special zone, the spirit of fighting floods, the spirit of earthquake relief and the spirit of fighting epidemics have built up the spiritual pedigree of the Communist Party of China (CPC) people.

Nowadays, the Communist Party of China (CPC) people’s spiritual pedigree is further enriched, and the General Secretary clearly put forward the 32-word great party-building spirit at the celebration of the centenary of the founding of the Communist Party of China (CPC).

The great party-building spirit, generated with the great practice of communist party people from generation to generation, is the source of the Communist Party of China (CPC)’s spirit, leading countless communist party people to wave upon wave and China people to write the most magnificent epic in China.

Feeling the great spirit of party building is like touching the historical pulse of the Communist Party of China (CPC)’s century-long development.

On the eve of "July 1st", the Political Bureau of the Communist Party of China (CPC) Central Committee conducted a special collective study around making good use of red resources and continuing the red vein. General Secretary of the Supreme Leader said earnestly: "The great spirit and glorious tradition of the Party are our precious spiritual wealth and a powerful spiritual driving force that inspires us to forge ahead bravely."

"Centennial Answer Sheet" continues to write a new journey.

The history of the Party is the most vivid and convincing textbook. The General Secretary of the Supreme Leader has repeatedly asked all party member to repair the compulsory course of Party history, and he himself has taken the lead in learning Party history.

In October 2017, shortly after the closing of the 19th National Congress of the Communist Party of China, General Secretary of the Supreme Leader made a special trip to Shanghai and Zhejiang to pay tribute to the site of the First Congress of the Communist Party of China and the Nanhu Red Boat, and led Comrade The Politburo Standing Committee (PSC) to review the pledge of joining the Party.

今年6月18日，总书记专程来到新落成的中国共产党历史展览馆，察看一件件文物实物，倾听一个个党史故事，又一次带领中央领导同志重温入党誓词。

回望奋斗之路，眺望新的征程。如何以史为鉴、开创未来？最高领袖总书记在庆祝中国共产党成立一百周年大会上提出“九个必须”，为新的伟大征程指明前进方向。

“中国人民也绝不允许任何外来势力欺负、压迫、奴役我们，谁妄想这样干，必将在14亿多中国人民用血肉筑成的钢铁长城面前碰得头破血流！”

“任何人都不要低估中国人民捍卫国家主权和领土完整的坚强决心、坚定意志、强大能力！”

…………

最高领袖总书记的铿锵话语，赢得了天安门广场上潮水般的掌声和热烈的欢呼声！

“时代是出卷人，我们是答卷人，人民是阅卷人。”建党百年，中国共产党向人民、向历史交出了一份优异答卷。

今天，向着实现第二个百年奋斗目标，中国共产党踏上了新的赶考之路，开始书写新时代的历史答卷。

（中央广播电视总台央视网）

What is the average price of Wuyue Square in Zhangjiagang now? Is it worth starting with? What is the surrounding supporting environment? Today, Fangtianxia will focus on the situation of Wuyue Square Community in Zhangjiagang, so that you can fully understand the housing price trend, the advantages and disadvantages of the apartment type and the surrounding facilities, and better choose the house that suits you.

Xincheng Holdings will build a new city center in Zhangjiagang. The total construction area of Wuyue Plaza project in Zhangjiagang New City is about 580,000 square meters, including shopping plaza, commercial and residential buildings, houses and other products. The shopping plaza has been stationed in the format of department stores, supermarkets, KTV, cinemas, restaurants, culture and entertainment, etc. Wuyue Plaza will present a one-stop consumption and leisure place for the people of Zhangjiagang, which integrates shopping, catering, culture, entertainment and leisure.
　　　　　　Wuyue Plaza in Zhangjiagang New City is located at the intersection of South Second Ring Road and Jingang Avenue, which is the core area of the south of the port city and the scenic Jiyang Lake. The total area of the project is about 197 mu, and the planned construction area is about 580,000 square meters. The project covers large-scale experiential shopping plazas, quality houses, apartment buildings and outdoor pedestrian streets.

Address of Wuyue Plaza in Zhangjiagang: Intersection of Second Ring Road and Jingang Avenue in Jiyang, Zhangjiagang (south of Jiyang Lake Park)

No.9 and No.21 near Wuyue Square in Zhangjiagang, etc.

　　　　The standard floor E1 of Building No.1 # 2 # of Wuyue Plaza Phase I in Zhangjiagang is 142.00㎡ with 3 rooms, 2 halls, 2 bathrooms and 1 kitchen.

Internal facilities: department stores, supermarkets, KTV, cinemas, restaurants, culture, entertainment, etc.

Recommended housing 1:Building area of second-hand house in Room 1 and Hall 0 of Wuyue Plaza in Zhangjiagang: 50.0㎡ Price: 1 million yuan (20,000.0 yuan/㎡).

Recommended housing 2:Construction area of second-hand house in Room 3 and Hall 2 of Wuyue Plaza in Zhangjiagang: 130.0m2 Price: 1.196 million yuan (9200.0 yuan/m2).

Recommended housing 3:Building area of second-hand house in Room 3 and Hall 2 of Wuyue Plaza in Zhangjiagang: 90.0m2 Price: 828,000 yuan (9200.0 yuan/m2).

The commendation meeting of the 2016 Shanghai Key Project Practical Meritorious Competition was held this morning (January 12). Before the meeting, Han Zheng, secretary of the Shanghai Municipal Party Committee, met with representatives of advanced collectives and individuals. Han Zheng said,2017 is the year of deepening the "Thirteenth Five-Year Plan". It is hoped that advanced collectives and individuals will play a leading and exemplary role, always adhere to safety first, quality first, management first, science and technology leading, and make greater contributions to building Shanghai into a more beautiful city and making people’s lives happier.

On the morning of January 12th, Han Zheng, secretary of the Shanghai Municipal Party Committee, met with representatives of advanced collectives and individuals. The pictures in this article are all Chen Zhengbao’s pictures.

Shanghai leaders Yang Xiong, Wu Zhiming, Ying Yong, Yin Hong, Xue Chao and Li Yiping, and Shanghai Garrison Political Commissar Ma Jiali attended the meeting.

On behalf of the Shanghai Municipal Party Committee, the Municipal People’s Congress, the Municipal Government and the CPPCC, Han Zheng congratulated the advanced collectives and individuals who were commended for their meritorious deeds in key projects, paid tribute to the vast number of urban builders and managers who fought in the front line all the year round, and expressed gratitude to the general public who understood, cared for and supported urban construction and major projects. He said that at this time of the year, we review the course of Shanghai’s key projects’ practical meritorious deeds competition, feel the hardships and share the joy of success. Since China’s reform and opening-up, especially since Pudong’s development and opening-up, Shanghai’s key projects have been closely focused on making up the shortcomings and facing the future development, constantly pushing forward, laying a solid foundation for the city’s economic and social development. This year is the year of deepening the 13th Five-Year Plan. According to the requirements of the central authorities, Shanghai is striving to be the vanguard of national reform and opening up and the pioneer of innovation and development, and is striving to basically build the "four centers" and a socialist modern international metropolis by 2020. The field of urban construction shoulders heavy responsibilities. Hope that advanced collectives and individualsAlways adhere to safety first, quality first, safety is the bottom line, and quality is life. We must always tighten the string of safety and continue to play a benchmark and leading role in key projects and practical projects with the world’s advanced level as the standard. Always adhere to management as the priority and science and technology as the guide, put management in a more important position to ensure safety and quality, highlight scientific and technological innovation, and improve the quality of the city. Always adhere to the people-friendly and civilized construction, and try to minimize the impact on the orderly operation of the city and the normal life of the citizens during the construction process.

At the commendation meeting, Yang Xiong said that last year, the achievements of major projects and practical projects in this city were gratifying, the shortcomings of urban management were remarkable, and the task of aiding Xinjiang was successfully completed, achieving the "Thirteenth Five-Year Plan" and "a good start". This year is an important year for implementing the 13th Five-Year Plan and deepening the structural reform on the supply side. Facing the new situation, we should conscientiously implement the general tone of striving for progress while maintaining stability, sum up experience, blaze new trails, roll up our sleeves and go all out to complete various construction tasks.

"Safety and quality are the lifeline of major engineering construction and must always be put in the first place." Yang Xiong pointed out that it is necessary to pay strict attention to construction safety, take effective measures, consolidate the main safety responsibilities of construction, survey, design, construction and supervision, pay close attention to key construction links, and strengthen the safety control of major risk sources. It is necessary to continuously improve the quality of the project, adhere to the international first-class benchmarking, comprehensively consider the design, construction and operation, adopt more advanced international quality standards, vigorously carry forward the craftsman spirit, and strive to create more excellent projects. To improve the level of civilized construction, the construction unit should further strengthen the overall awareness, focus on improving internal management, reduce related social costs, and minimize the impact of engineering construction on the city. The construction of rail transit stations should strive to occupy less roads and return them early. It is necessary to strengthen dust control on construction sites and roads, and urge transportation enterprises to reduce "leakage" in muck transportation. We should persist in scientific and technological innovation and promote the transformation and upgrading of the construction industry. To become an important carrier of scientific and technological innovation, major projects should promote prefabricated buildings in major projects throughout the city, and constantly increase the proportion of prefabricated components used in each project. It is necessary to speed up the popularization of building information model technology (BIM), and establish and improve the matching project approval mode and standard system. It is necessary to make more use of new technologies such as the Internet of Things and big data to explore intelligent life cycle management of buildings.

Shanghai leaders Ying Yong and Xue Chao, and Yi Li Pinghe Garrison leader Ma Jiali attended the meeting. A number of advanced collectives and individuals who made outstanding contributions to the construction of major projects and practical projects in this city in 2016 were commended.

It is reported that in 2016, 122 major engineering projects in the city were comprehensively promoted. By the end of December of that year, a total investment of 128.01 billion yuan had been completed, and 123.6% of the plan was completed at the beginning of the year.

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　　Blackmail virus, xiong’an new area, bike-sharing … These hot topics were concerned by netizens in May, and all kinds of online rumors also took the opportunity to fish in troubled waters and confuse the audience: "bike-sharing cushion is now’ AIDS needle’, and it will be infected when it is stuck", "Bitcoin ransomware can invade mobile phones" and "xiong’an new area compensation standard is announced" … China Internet Illegal and Bad Information Reporting Center sorted out the top ten online rumors in May to set the record straight.

　　Myth 1: floss is made of cotton.

　　In late May, a video was widely spread on WeChat group, saying that it was proved by washing and burning that some floss breads and cakes on the market were made of cotton. The video caused a lot of forwarding, which caused netizens to question and worry about food safety, and even related products were returned and removed from the shelves, causing great losses to some enterprises.

　　Truth:China food and drug administration’s official magazine "China Food and Drug Administration" and WeChat WeChat official account’s "CFDA China Food and Drug Administration" denied that the essence of dried meat floss is muscle fiber, and the main component is protein, which will melt when put into your mouth and taste soft. The essence of cotton is plant fiber, the main component is cellulose, which is an insoluble fiber. Although it looks soft, it is not chewy. In other words, if you really pretend to be floss with cotton, you will be seen through when you eat it! In addition, the "fire identification method" used in the video is not reliable. Protein, the main ingredient of the floss, is combustible, so it is normal to be ignited, and there will be a burnt smell. Combustibility does not prove that the floss is made of cotton.

　　Rumor 2: bike-sharing cushion is now an "AIDS needle", and it will be infected when it is tied.

　　At the end of May, pictures circulated on the Internet said that someone found a needle on the seat cushion of a bike-sharing, as if someone had done it on purpose. "Please pay attention to check when riding a bike. Some AIDS patients dye their blood on the needle. If they are stabbed, you will be infected."

　　Truth:First of all, scientific research shows that HIV cannot survive in air, water and food. Once you leave the human environment, the virus will soon lose its ability to spread. Secondly, the human body only ingests enough HIV to cause infection. The blood and liquid content on the needle is inherently low, and the amount of virus is even less. Therefore, even if there is virus residue on the needle, it is difficult for the number of viruses to reach the pathogenic conditions. In this regard, the yellow bike-sharing company ofo involved in the online picture issued a statement: "Xiaohuangche verified the cities involved in the rumor at the first time and did not find any situation mentioned in the rumor."

　　Proverbs 3: Bitcoin ransomware can invade iOS and Android phones.

　　After the outbreak of the Bitcoin blackmail virus "I want to cry", rumors about mobile phones being infected with this virus have come and gone. All kinds of information are widely spread on social networking platforms. There are rumors that "a new type of computer virus’ want to cry’ broke out around the world, and mobile phones will be invaded, whether it is Android or Apple!" At the same time, it also said, "This is an upgraded version of the ransomware. Once it is blackmailed, there is no way to save it at present, only prevention!"

　　Truth:According to feedback from network security agencies such as 360 and Cheetah, no bitcoin ransomware has been found to infect mobile phones. The ransomware is a virus aimed at Windows, and it is impossible to run on Android phones or Apple phones. However, experts also reminded that if the mobile phone is connected to the computer infected with the ransomware as a storage device, the files in the SD card of the mobile phone may be infected with the virus.

　　Proverbs 4: xiong’an new area compensation standard announced.

　　The news that the Central Committee of the Communist Party of China and the State Council decided to set up xiong’an new area has aroused widespread concern in society. Along with this hot topic, some rumors have also spread. In mid-May, there was a so-called "xiong’an new area Compensation Standard" circulating in the circle of friends, which claimed that every rural resident in Xiong ‘an New District, regardless of the size of their homestead, had three sets of houses with a total area of not less than 300 square meters.

　　Truth:The so-called "compensation standard" is a complete rumor. Previously, the Provisional Party Committee and Preparatory Committee of xiong’an new area, Hebei Province issued a clear paper entitled "Adhering to the People-Centered Concept and Seriously Formulating Land Expropriation and Relocation Policies". According to the paper, at present, the land requisition and relocation work in the new district is in the stage of investigation and consultation, and the Preparatory Committee of the new district has not released any content of "standards for requisition and relocation" in any form. On May 20th, Xiongxian Public Security Bureau made a punishment decision of 10 days’ administrative detention on Sun Moumou who was suspected of spreading rumors about "xiong’an new area compensation standard".

　　Proverbs 5: The video of "Taiyuan earthquake of magnitude 12" contains ransomware.

　　In mid-May, a message "The video of the earthquake with magnitude 12 in Taiyuan" was widely spread in the WeChat group: "Please pay attention to the news just received from other groups: Don’t open the video of the earthquake with magnitude 12 in Taiyuan, delete it immediately, it is a ransomware, especially the one with Alipay on the mobile phone. Just now the news was broadcast, and everyone started to transfer to each of their own groups. Don’t be fooled. "

　　Truth:Weibo, the official of "Taiyuan network police patrol law enforcement", denied the rumor, which is a rumor of "rubbing hot spots". First of all, the Taiyuan earthquake of magnitude 12 alone is very suspicious. Worldwide, the earthquake with the largest magnitude recorded was the one that occurred in Chile in 1960, with a magnitude of 9.5. Secondly, we can’t find any video titled "Taiyuan earthquake with magnitude 12" on the Internet. This is obviously a rumor that uses blackmail virus to rub hot spots.

　　Proverbs 6: From June 12306, I can only buy tickets.

　　At the end of May, a notice circulated on the Internet: 12306 will require registered users to use their bank cards for payment from June this year. At that time, users can only buy tickets for themselves, and children will not be able to buy tickets for their parents.

　　Truth:The 12306 National Railway Customer Service Center responded that without similar notice, a registered account can still buy tickets for five of the common contacts at the same time. Website registered users should have the same name as the payment bank account, but it does not affect everyone to use their own accounts to buy tickets for common contacts.

　　Myth 7: A horrible family photo.

　　In mid-May, a photo circulated on the Internet said that there was only one young man in a family of eight in Rudong County, Jiangsu Province, which was a horrible family photo.

　　Truth:The "only" young man in the photo @ Oh, there is Weibo. According to personal Weibo, there are not only these people in the family, but also brothers and sisters, uncles and aunts. The whole family adds up to 40 or 50 people. As for this photo, it was taken a few years ago to promote filial piety to the elderly, and did not let his uncle, aunt, sister and brother appear.

　　Proverbs 8: Female anchors hide in the Forbidden City at night and broadcast live.

　　After the May Day holiday, a video of "Female anchor staying at the Forbidden City for live broadcast of Cixi’s bed" was widely spread on the Internet. The woman in the video has been dressed in ancient costumes and broadcast live in the Forbidden City many times, and claimed that she would avoid the security of the Forbidden City and broadcast it again at night. That night, the woman filmed in a building similar to a palace, claiming to be "now alone in the Forbidden City".

　　Truth:On May 19th, the Beijing police informed that, after investigation, the offender Li (male, 27 years old) wanted to promote an online APP by supporting Zhou (female, 22 years old). Under the planning of Yang (male, 44 years old), the three entered the Forbidden City during the day on May 1st by purchasing tickets normally and broadcast live pictures. In the meantime, Yang and Li deliberately pretended to be netizens and proposed to broadcast live in the Forbidden City at night. That night, the three people went to an ancient imperial city scenic spot in Shunyi District to continue the live broadcast, and lied that the scene was in the Forbidden City, fabricating the false fact that the female anchor stayed in the Forbidden City for live webcast. According to the Law on Public Security Administration Punishment, the public security organs detained Yang for 10 days, Li for 10 days, and Zhou for 5 days (suspended due to illness).

　　Proverbs 9: Bananas are soaked in formaldehyde, and they will be poisoned if eaten.

　　At the end of May, a video of "Banana Soaked in Unknown Liquid" was widely circulated in Weibo, WeChat group and friends circle. Consumers are worried that the unknown liquid is a toxic liquid, and some even speculate that it is formaldehyde.

　　Truth:Wang Mingyue, a researcher at the Institute of Agricultural Products Processing, Chinese Academy of Tropical Agricultural Sciences, said that the milky liquid in the video is a preservative. Bananas are perishable after picking, so they need to be preserved for long-distance transportation. At present, prochloraz, thiophanate-methyl and iprodione are mainly used as banana preservatives. These are internationally recognized low-toxic fungicides, which degrade quickly and are registered by the competent authorities and allowed to be used in banana preservation. The competent authorities have also formulated the corresponding recommended dosage and residue limit standards. Therefore, consumers do not need to worry at all, and bananas that have undergone formal preservation treatment can be safely eaten.

　　Myth 10: A drop of blood can measure cancer.

　　At the beginning of May, a "major breakthrough! The article "A drop of blood can be measured for cancer has been approved for clinical use" attracted attention on the Internet. The article mentioned: "The Luo Yongzhang team of the School of Life Sciences of Tsinghua University independently developed a kit, which can be used for cancer condition monitoring and treatment effect evaluation by patients only taking a drop of blood." Individual media and self-media then forwarded that "a drop of blood can measure cancer".

　　Truth:Professor Sudan of Zhejiang Cancer Hospital said that the statement that "a drop of blood can detect cancer" is not rigorous, and the role of tumor markers in tumor diagnosis is exaggerated. Up to now, there is no blood marker in the world that can accurately diagnose tumors. In fact, Luo Yongzhang himself once denied this, saying that "a drop of blood can detect cancer" is very inaccurate, and the exact statement should be "monitoring tumor".

Original Liu yaning titanium media

Ti du tu Wen yi Bai si phase 2

▎ Spring Festival pet foster care "a nest is hard to find".

Editor | Liu Yaning Sun Cheng

Drawing | Chu Yan Mo

Planning and Production | Titanium Media Visual Center

During the Spring Festival, for pet owners who have travel plans, "staying behind" pets has become a big problem.

During the Spring Festival, the orders of pet foster care institutions around the country increased greatly, and there was a situation that "one cage is hard to find", and the price also rose. Some foster care institutions launched SVIP rooms as high as 1299 yuan/day, and the price was comparable to that of five-star hotels. In addition to pet foster care, "door-to-door feeding" is also a more cost-effective choice for pet owners. During the Spring Festival, the lowest price for door-to-door feeding of pet cats in Beijing is in 100 yuan/time, which is about 25 yuan’s holiday fare increase compared with the usual door-to-door feeding price.

For businesses, it is natural not to miss this good opportunity to make money. Pet foster care service is becoming a hot business. Before this year’s Spring Festival, Box Horse launched services such as on-site pet feeding and dog walking in Shanghai during the Spring Festival. The original price was 128 yuan, and the snapping price was 98 yuan.

In order to make pets have a good Spring Festival, pet owners and businesses have exhausted their minds. How is the pet foster care business during the Spring Festival? Which companies have laid out pet foster care business? This issue of titanium media and titanium map brings you attention.

The price of pet foster care per night is equal to that of five-star hotels.

Home feeding is more cost-effective

During the Spring Festival, many pet shops received a large number of foster care orders. The demand for pet foster care in Shanghai pet foster care shop this Spring Festival has increased by about 30% compared with last year. In October 2023, customers in Beijing pet foster care shop began to book rooms during the Spring Festival, and in December 2023, pet foster care rooms were fully booked. The owner of pet foster care in Guangzhou said that he would receive more than a thousand foster care orders during the Spring Festival. It is found that in some pet shops in Beijing, the Spring Festival foster care service should be reserved 15 -60 days in advance, which can be described as "a nest is hard to find".

The strong demand has also pushed up the price of pet foster care. Some pet owners said that the cost of pet foster care for 8 days during the Spring Festival has even been equal to the rent of apartment rooms in Beijing. The data of several pet foster care shops in Beijing were selected, and it was found that most pet shops have introduced rooms with different stalls, and basically every foster pet shop is equipped with a camera for pet owners to check the situation in real time. In addition, cleaning and disinfection are also standard in pet shops. In some rooms with higher fees, its supporting services will also increase services such as massage, accompanying play, free shuttle and bathing in the sun.

In some pet shops for cats, the price of some ordinary rooms is 100-200 yuan/day, and the daily price of luxury rooms is as high as 500 yuan. The difference between "deluxe room" and "ordinary room" lies in the size of the room, the number of cats accommodated and the supporting services. The price of "Sunshine Suite" in a pet shop in Sanlitun, Beijing is 899 yuan/day, and the daily price of "SVIP Room" in a pet shop in Baiziwan, Beijing is 1000 yuan/day, and the daily foster care price exceeds that of five-star hotels.

In addition, the price of foster dogs is higher than that of cats. In the pet shop in Sanlitun, Beijing, the price of the same type of room type foster dog is 100-300 yuan/day more expensive than that of the cat. If the foster care is calculated as 8 days during the Spring Festival, at least 800 yuan is needed, which is equivalent to the cat’s living expenses for nearly two months. If you want pets to receive better services, the total cost of foster care can reach 10392 yuan.

It is worth noting that in addition to foster cats and dogs, some pet shops offer foster rabbits and birds, and the daily price is below 100 yuan.

In addition to pet foster care, door-to-door feeding of pets is gradually becoming popular. Before the Spring Festival, there will be advertisements for door-to-door feeding services on social platforms, community corridors, elevators and other places. Most of these people who provide feeding services are private, and such people will label themselves as professionals such as "senior pet owners and pet store clerks". Door-to-door feeding services include food cleaning, adding food and water, shoveling excrement and adding sand, interactive play, health monitoring and so on. The charging standard varies according to the distance, the number of pets and holidays.

According to the titanium media and titanium map, the service price of door-to-door cat feeding in Beijing includes five aspects: cat feeding service fee, basic door-to-door fee, fare increase per kilometer, fare increase for multiple cats and fare increase on holidays. Among them, the prices of more than half of the "pet caregivers" are between 31 yuan and 40 yuan, and the average prices are 35.9 yuan/time and 37.7 yuan/time respectively; The average price of fare increase for "pet tutors" whose door-to-door distance exceeds 1km is 6.6 yuan/time, and the average price of fare increase for feeding one more cat is 7.4 yuan/time.

On holidays, almost all "pet caregivers" will increase their prices, with the range of 11-30 yuan/time accounting for over 70%, and the average price is 25.7 yuan. According to the lowest price during the Spring Festival, the daily price of feeding a cat at home is 99.3 yuan/day. Door-to-door feeding service can be selected once every 2-3 days, and the total cost during the Spring Festival is about 200-300 yuan, which is more cost-effective and cost-effective than pet foster care shops that have to pay every day.

Pet foster care business continues to heat up

There are more than 30,000 related enterprises registered in China.

The data shows that in 2023, the number of pet dogs in China was 51.75 million, an increase of 1.1% over 2022; The number of pet cats is 69.8 million, an increase of 6.8% compared with 2022; The consumption market of urban pets (dogs and cats) is 279.3 billion yuan, an increase of 3.2% compared with 2022. In the pet consumption market of more than 200 billion yuan, more and more pet supporting services are applied. The pet business is said to be a gold-sucking business for enterprises, and more and more brands are eyeing the pet service.

Before the Spring Festival this year, Box Horse APP launched the Spring Festival pet door-to-door feeding and dog walking service in Shanghai. Professional pet companions have more than one year’s experience in raising pets independently, and broadcast live video of the whole process to the owner.

It is reported that the service can only be used during the Spring Festival, and the date can be from the 27th of the twelfth lunar month to the 7th day of the first lunar month. The main contents of the service are changing water and feeding food at home, walking the dog and playing with you. This service was completed by the cooperation of Box Horse and unigo, a pet service brand. The company was established in June 2022, and mainly engaged in pet bathing, pet grooming, dog walking and door-to-door feeding services.

At present, there are more than 30,000 enterprises in China whose enterprise names, business scope or products and services include "pet foster care", and most of these enterprises were established between 2016 and 2020. Among them, in 2016, the registered growth rate of "pet foster care" related enterprises was the fastest, reaching 96.8%; In 2019, the number of registered enterprises related to "pet foster care" was the largest, reaching 7880. In terms of geographical distribution, Shanghai has the largest number of "pet foster care" related enterprises, reaching 3898; In addition, the number of "pet foster care" related enterprises in Guangdong Province and Jiangsu Province also exceeds 2,000.

Whether foster care or door-to-door feeding, there are certain security risks. In pet foster care, it is difficult to guarantee the sanitation of foster care environment, and pet shop staff are not well cared for. In the aspect of door-to-door feeding, it is not uncommon that the property of the pet owner is lost and the door-to-door feeding personnel are bitten by pets during feeding. At present, the pet foster care industry is still in an "extensive" state, and there is no unified service standard for pet foster care in the industry. In the future, the pet industry still needs to be further standardized to reduce security risks, so that this service can develop more sustainably.

* Data sources: Tianyancha, Maoxiang applet, public comments, Billion Power and other public information.

Originality brings science home.

Seven kings of writing articles

Nowadays, more and more children’s puberty is ahead of their parents. What is the reason?

In addition to overnutrition, many studies now point to environmental endocrine disruptors, such as bisphenol A(BPA) in plastics, which can interfere with the endocrine system of humans and animals. But today we are going to introduce a stronger food-like hormone, which is widely found in grains, milk and other foods.

The name of this kind of hormone from food is Buddhist, but what it does is very coquettish. It is ZEN.

ZEN is a toxin synthesized by Fusarium fungi, and these fungi like grains best, so ZEN is widely distributed in moldy corn, sorghum, wheat and other grains, and is one of the most widely distributed mycotoxins in the world.

Fusarium, a common fungus that pollutes grains. Image source: wikipedia

In 2000, a report by the Joint FAO-WHO Expert Committee on Food Additives (JECFA) named Safety Evaluation of Certain Food Additives and Containant pointed out that 30-40% of the world’s grain was polluted by ZEN, and the pollution situation in developing countries was more serious than that in developed countries.

Many studies have detected high concentrations of ZEN in local grains. Regina Schoental, a pathologist at the University of London, pointed out that in the wet harvest season, the ZEN content of barley and corn in the barn can exceed 100,000 ppb (100,000 parts per billion), which is 1,000 times higher than the upper limit of ZEN content of cereals set by the European Union for direct human consumption.

So, what impact will ZEN have on animals?

ZEN is similar to the animal estrogen estradiol in structure, so it is also called F-2 estrous toxin. Yes, you are right. ZEN’s effect means literally.

The estrogenic effect of ZEN was first discovered by American scientists in 1926. Many people know that soy products also contain phytoestrogens, but ZEN is much more powerful than them. At that time, after eating corn contaminated by ZEN because of moisture, pigs became sick-their reproductive organs and behaviors were abnormal.

What anomaly?

Because the function of ZEN is similar to estrogen, the bad things it does on livestock include but are not limited to: estrus cycle disorder, premature estrus, abortion and stillbirth, false pregnancy infertility, low pregnancy rate and so on. Animal studies have found that most animals will be adversely affected by ZEN, such as pigs, cows, sheep and rabbits.

For example, after eating the feed contaminated by ZEN, the newly weaned sow will have estrus symptoms, such as redness and swelling of the hindquarters.

After the boar ingests ZEN, it will also become feminized, such as the chest becomes bigger, the balls shrink, the number of sperm decreases, and abnormal sperm is produced. ZEN has a similar effect on cattle and sheep. If the bull before puberty is injected with 36 mg of ZEN, the circumference of the balls will become smaller, the genitals will degenerate and the semen quality will become worse.

Even more frightening is that only a low dose of ZEN (as low as 1ppm) can cause damage to the reproductive system of pigs.

Because of the losses caused by ZEN to animal husbandry, ZEN is often called the second invisible killer in pig industry after aflatoxin.

So, will human beings be influenced by ZEN?

ZEN can be quickly absorbed by the body through oral administration or even through the skin. After entering the human body, it likes to stick to tissues affected by estrogen, such as uterus and leydig cells of testis.

For children who have not yet entered puberty, because their natural estrogen level is very low, they are easily influenced by estrogen in the environment, thus being induced into precocious puberty and making their breasts develop rapidly.

In November, 1977, a school in Milan, Italy, showed that the breasts of girls and boys became bigger. Researchers at the University of Milan then studied more than 200 boys aged 3-14 and more than 100 girls aged 3-7. In 1979, they published this research in The Lancet.

These researchers found that the breasts of children of all ages in this school are bigger than their peers in other schools, regardless of gender, and this phenomenon appeared in children aged 3-5.

These researchers believe that the reason why the students’ breasts are getting bigger in this school is that the grain and meat in the canteen of this school are polluted by estrogen.

Cereals can also understand, what is the problem of meat being contaminated by estrogen?

It turned out that shortly after the estrogen-like effect of ZEN was discovered, scientists found that low-dose ZEN was helpful to promote sexual maturity and gain meat in livestock. Therefore, ZEN and its derivatives have been sold as fattening agents for livestock for a long time. At that time, animal husbandry in many countries, including Italy, fed these synthetic growth promoters to livestock.

Zearalanol (trade name Ralgro), a derivative of ZEN, is now used to promote livestock fattening.

From 1978 to 1984, a large-scale precocious puberty incident occurred in Puerto Rico, which was attributed by many studies to the residue of ZEN or its derivative α‐ZAL (livestock is strong) in dairy products and meat products.

However, a study published in The Journal of Pediatrics in 2008 directly pointed the high incidence of precocious puberty in girls in northwest Italy to ZEN through blood tests.

Let’s look at the situation in our country. In 2012, researchers from Anhui Medical University analyzed the ZEN content in the blood of 78 children diagnosed with precocious puberty in 2009-2010, and found that the ZEN level in these China children was significantly higher than that of their peers without precocious puberty.

As more and more evidence supports the influence of ZEN on children and human reproduction, the World Health Organization recommends that the maximum tolerable daily intake of ZEN is 0.5 micrograms, while the EU’s recommendation is 0.25 micrograms per kilogram of body weight per day.

Although human beings are beginning to realize the harm of ZEN, it does not mean that we have an effective way to remove it. Another danger of ZEN is that it is a very stable substance, even at the temperature of 150 degrees Celsius, ZEN will not decompose. In other words, ordinary families can’t remove ZEN from food by cooking.

However, the traditional physical and chemical methods can not remove ZEN without destroying the nutritional components of grain, so ZEN detoxification of grain has become an agricultural technical problem.

The existing detoxification methods include enzymatic mildew remover, montmorillonite adsorption and so on, but these are only laboratory studies and have not been applied on a large scale. In daily life, the methods of removing ZEN are not beautiful, such as lime water soaking and chlorination.

Because of the reproductive toxicity of ZEN to human beings and livestock and the difficulty of detoxification, the European Union banned the use of ZEN as an animal feed additive in 1988. In 2010, our country also listed the derivative of ZEN, α-ZAL, as a non-edible substance (but it can be used as a feed additive). China’s national standard (GB 13078.2-2006) also stipulates the maximum limit of ZEN in feed.

So how can ordinary consumers reduce the harm of ZEN?

The advice of the World Health Organization is: buy fresh grains as much as possible, store them in a dry and cool place, discard the damp and moldy parts in time, and don’t store them for too long without eating.

Bring science home.

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Original title: "After eating damp and moldy millet, scientists found that male animals have become mothers."

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