The knowledge contest was hosted by the US Food and Drug Administration and undertaken by the National Food Industry Productivity Promotion Center. The test questions mainly involve food safety management system, legal standards of food safety, basic knowledge of food safety, common sense of daily consumption of food safety, emergency measures of food safety emergencies, food safety knowledge of special people, etc. The types of questions are divided into single-choice questions, multiple-choice questions and true-false questions. The answer time is from 10, 10 to 1 10. In order to encourage public participation, the competition has set up individual awards and organizational awards.
According to the relevant person in charge of the US Food and Drug Administration, everyone can participate except the staff of the organizer and the organizer. The contest questions can be obtained from China Medical Journal, China Daily of US Food and Drug Administration, Medical Economic Journal, China Food Journal and China Food Quality Journal, or from the website of National Food Safety Network or National Food Industry Productivity Promotion Center. On September 30th, 2007, the "Hundred Websites Olympic-related Laws and Regulations Knowledge Competition" sponsored by Ministry of Justice, the State Council Press Office, State Sports General Administration, BOCOG and National Law Popularization Office ended in Beijing on September 30th. This activity lasted for a month. By the end of the competition, more than 6.5438+0.5 million people participated in the competition, and 65,403 people submitted their answers. This competition produced 1 grand prize, 10 first prize, 50 second prize, 100 third prize, and 300 excellent prizes through the lucky draw (see the list). The Beijing Notary Office has notarized the lottery on the spot. At the lottery ceremony of "Hundred Websites Olympic-related Laws and Regulations Knowledge Competition", the organizer said that "Hundred Websites Olympic-related Laws and Regulations Knowledge Competition" is an important activity of legal publicity for the 2007 Olympic Games, and it is also an important measure to implement the opinions of the Ministry of Justice, the State Council Information Office and the National Law Popularization Office on strengthening legal publicity and education on the Internet. Due to proper organization, more than 100 websites collectively linked together, and the main media participated in the report, the competition got enthusiastic participation from netizens and positive response from all walks of life. Among them, Zhejiang, Beijing, Xinjiang, Hubei, Jilin, Jiangsu, Sichuan, Anhui, Hebei, Shandong and other places have more participants. By holding this activity, the advantages of online law popularization were effectively brought into play, Olympic knowledge was disseminated, the spirit of rule of law was promoted, and a new upsurge of online learning of Olympic-related laws and regulations was set off, which achieved good social effects. It is a useful attempt to carry out legal publicity and education on the Internet.
Xiao Yishun, Director of the Legal Publicity Department of the Ministry of Justice, Wu, Minister of Legal Affairs, Lei and Deputy Editor-in-Chief of the Beijing Municipal Bureau of Justice, and relevant comrades from the Network Bureau of the State Council Information Office and the Political and Legal Department of the State Sports General Administration attended the lucky draw ceremony and won the first prize, the first prize, the second prize and the third prize respectively. Popular Science Knowledge —— The Origin and Development of Modern Biomechanics
Modern biomechanics originated in the late 1960s, and the development of biomechanics and sports biomechanics entered a period of formation and development. During this period, experts actively studied the biomechanical characteristics of human and animal movements. The scientific research of the following scholars is widely known: Alexander1970, author of biomechanics; 1974, Wu Ke Brodovich made a mathematical simulation of animal movement, which promoted the development of robot manufacturing technology. 1968, hillier Bohlander founded the theory that animals move with uniform gait. 1968 sukhonov established the general system of terrestrial vertebrate movement; Hatton's research on the regulation mechanism of human support exercise system: Miller's research on human exercise biomechanics. 1967 the first international symposium on biomechanics was held. 1973, the International Biomechanics Society (ISB) was formally established, marking the formal establishment of biomechanics. During this period, sports training was formed as an independent discipline in the Soviet Union, but before that, it only developed within the scope of sports. The following textbooks became the first works to elaborate the knowledge system of sports training: Modern Sports Training System by Ozolin of the Soviet Union (1970), Training Science edited by harriet of Germany (197 1) and Sports Training Theory and Method by Lidovski of Poland. This has promoted the development of sports biomechanics in the new scientific direction of sports training.
Development of popular science knowledge
With the continuous expansion of the research scope of sports training, biomechanical research from different angles in athletes' technical analysis of competition has been actively developed. At present, the main institutions that study sports biomechanics are mostly in eastern European countries, such as Poland, Russia (mainly in Moscow, St. Petersburg, Volgograd, Krasnodar, Novosibirsk and other cities) and Ukraine (Kiev National Sports University and Kharkov National Academy of Sports Sciences). The practical significance of modern sports biomechanics research is determined by the following two reasons: on the one hand, the social significance of sports is constantly improving and the number of sports events is increasing, which determines the necessity and prospect of sports biomechanics research; On the other hand, with the rapid development of science and technology, many new scientific research methods are constantly emerging, which makes it possible to comprehensively study athletes' skills in completing competitions, thus improving athletes' training and competition results.
The development of modern biomechanics obviously has several directions, namely, engineering biomechanics, medical biomechanics and educational biomechanics (Donskoi, 1997). Engineering biomechanics and medical biomechanics have been well studied in theory, with well-known and used instruments and equipment, which determines that their research is based on a relatively high level of scientific methods, but there is another situation in the research of educational biomechanics, which is mainly used to solve teaching tasks.
Educational biomechanics is a relatively new branch of biomechanics research. At present, it is still in the stage of accumulation and understanding of basic materials and is forming its own theoretical theory. At present, an important task of educational biomechanics is to create a theory based on the conceptual system to explain and predict the main development direction of the studied phenomenon.
The expansion of the research scope of biomechanics on sports and sports issues and the further development of sports and sports theories have promoted the formation of a relatively new research direction in educational biomechanics-evolutionary biomechanics. The main task of evolutionary biomechanics is to reveal the law of action evolution by studying the law of natural development of human body, which is indeed an important task, because if we can't understand the law of human motor function changing with age, it is impossible to make a training plan correctly.
The scientific research results of Balisevich, Professor Sudura and Academician Yang Jintian show that: (1) during the individual development, the development of functional components and structures (used to ensure the form and functional mechanism) of human body is unbalanced; (2) The development of human movement in individual development is multi-level and rhythmic; (3) The performance of human movement in individual development is highly personalized; (4) The absolute result of the development of human motor function depends on the characteristics and intensity of physical activity.