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Research on the Deep Integration Mechanism of National Fitness Campaign and College Physical Education Teaching:Taking Guangdong University of Science and Technology as an Example
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作者 junmei cui Yanqing Yan 《Journal of Contemporary Educational Research》 2024年第1期107-115,共9页
By using the methods of literature review,questionnaire survey,and expert interview,this paper discusses and analyzes the deep integration mechanism of national fitness campaign and college physical education teaching... By using the methods of literature review,questionnaire survey,and expert interview,this paper discusses and analyzes the deep integration mechanism of national fitness campaign and college physical education teaching,in order to promote the development of college physical education teaching reform,expand ideas,explore new fields,and provide novel development directions.The purpose is to enhance the national physical quality,improve the public service system,enhance the health awareness of the citizens,and provide guidelines for promoting the development of sports. 展开更多
关键词 National fitness campaign College physical education Deep integration Mechanism
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Study on Electromyographic Characteristics of Neck Muscles in College Students with Chronic Neck Pain
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作者 Yanqing Yan junmei cui +4 位作者 Xiaoguang Liu Ge Zhao Chunlan Li Yafei Yuan Ziwei Du 《Journal of Clinical and Nursing Research》 2024年第6期26-31,共6页
Objective:To provide new insights for the evaluation and diagnosis of chronic neck pain(CNP).Methods:22 patients with CNP and 22 healthy individuals were recruited from South China Normal University,who were all colle... Objective:To provide new insights for the evaluation and diagnosis of chronic neck pain(CNP).Methods:22 patients with CNP and 22 healthy individuals were recruited from South China Normal University,who were all college students.The subjects'neck extensor muscle strength in the head neutral position,the natural anteversion position,and the maximum forward flexion position were measured by an isometric muscle strength tester respectively.The neck extensor strength of CNP patients and healthy subjects were compared.Results:In the neutral position,the maximum isometric muscle strength of neck extensor muscles was 12.31 kg for CNP patients and 15.16 kg for healthy individuals,resulting in a ratio of 81%strength in patients compared to healthy subjects.This difference was highly significant(P<0.000).In the natural anteversion position,the respective values were 12.6 kg for CNP patients and 15.05 kg for healthy individuals,with a ratio of 83%,and a significant difference between groups(P<0.001).In the maximum forward flexion position of the head,the values were 13.36 kg for CNP patients and 16.15 kg for healthy individuals,with a ratio of 82%,and a highly significant difference(P<0.000).Conclusion:The neck extensor muscle strength levels in college students with CNP were significantly lower compared to healthy college students across all measured positions. 展开更多
关键词 Chronic neck pain Muscle strength characteristics
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植物抗冻蛋白研究进展
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作者 董小云 魏家萍 +6 位作者 崔俊美 武泽峰 郑国强 李辉 王莹 田海燕 刘自刚 《植物学报》 CAS CSCD 北大核心 2023年第6期966-981,共16页
温度是决定植物地理分布的主要环境因子之一,分布于高纬度、高海拔地区的寒地植物,在其生活史周期内通常会遭遇一段时期的零度以下低温。当环境温度降至冰点以下,植物体内水分子趋向于形成冰晶体,不断增大的冰晶对植物组织结构造成致命... 温度是决定植物地理分布的主要环境因子之一,分布于高纬度、高海拔地区的寒地植物,在其生活史周期内通常会遭遇一段时期的零度以下低温。当环境温度降至冰点以下,植物体内水分子趋向于形成冰晶体,不断增大的冰晶对植物组织结构造成致命损伤。为适应冷冻环境,寒地植物病程相关蛋白(PR)及相关的WRKY转录因子进化成为能与冰面特异吸附结合、高效抑制冰晶形成和生长的抗冻蛋白(AFPs)。目前,已从冬黑麦(Secale cereale)等近百种植物中分离鉴定了AFPs。与昆虫AFPs相比,植物AFPs具有极高的重结晶抑制活性,可有效防止形成体内大冰晶。低温和病原菌均可诱导寒地植物合成AFP。有趣的是,仅冷诱导合成的AFPs有水解酶/抗冻活性双重分子功能。然而,越来越多的证据表明,PR-AFP仅具有水解酶/抗冻活性的其中一种,其转化由翻译后肽差异折叠控制/调节。AFP因具有独特的分子功能与广阔的应用前景而逐渐成为植物学领域的研究热点。该文对近年来相关领域取得的研究进展进行系统综述。 展开更多
关键词 植物抗冻蛋白 抗冻活性 分子演化 表达调控
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