耐力性运动防治血脂异常的机制   总被引：1，自引：0，他引：1  

张培珍  田野 《西安体育学院学报》2007,24(2):66-69

血脂异常是冠心病的首要危险因素,因此,如何通过安全有效的方式防治血脂异常,进而防治冠心病一直是学术界研究的热点。运动疗法作为防治血脂异常的安全有效的手段,正日益受到国内外专家学者的关注。  相似文献   

太极拳锻炼对老年健康状况的影响     

张晓英 《体育科技文献通报》2009,17(5):86-87

本文运用文献资料法、实验法对从事太极拳锻炼的老年人血脂含量进行测定,探讨太极拳对老年人健身作用的生理机制。结果表明：经过长时间太极拳锻炼的老年人整体血脂状况均有所改善,且效果明显。通过锻炼,老年人高密度脂蛋白胆固醇（HDL-C）的水平升高,达到预防动脉粥样硬化和冠心病的效果等作用。  相似文献   

Graduate LIS Students' Attitude Toward University Libraries and Personnel     

Taghreed Alqudsi-ghabra  Elham Al-Dousari 《International Information and Library Review》2019,51(1):9-18

This is an attitudinal survey that profiles Kuwait University Library and Information Science (KULIS) students' attitudes concerning Kuwait University's (KU's) libraries. It uses the phenomenological approach to analyze respondents' data regarding confidence in their skills and the effect on attitude toward KU's resources. It furthermore explores the attitudes of KU staff and the level of assistance offered to KULIS students. The results show that most of the respondents visited the library to access electronic resources. Some respondents disagreed that the staff had treated the KULIS suspiciously, yet a majority disagreed that the KU library staff was professionally trained to help KULIS students. Several respondents strongly agreed that they were confident in their searching skills. The results of the survey are used to recommend curriculum changes and ways to improve library and other academic support services at academic institutions generally.  相似文献   

欧洲语言教师教育纲要述评与启示     

施春阳 《宁波大学学报(教育科学版)》2015,(2):32-36

《欧洲语言教师教育纲要》是关于21世纪欧盟国家外语教师(初任和在职)教育的一个纲领性文件。该文件主要涉及外语教师教育的构成和组织,外语教学的核心——对于教学的认知,外语教学策略和技能,以及语言教学过程中鼓励和倡导多种价值观四个方面。其出台不仅为欧洲语言教师教育提供了具体发展方向和依据,也能为我国外语教师教育政策制定提供重要借鉴。  相似文献   

Classroom behaviour and academic achievement: how classroom behaviour categories relate to gender and academic performance     

Elin Borg 《British Journal of Sociology of Education》2015,36(8):1127-1148

Latent profile analysis was used to identify different categories of students having different ‘profiles’ using self-reported classroom behaviour. Four categories of students with unique classroom behaviour profiles were identified among secondary school students in Oslo, Norway (n = 1570). Analyses examined how classroom behaviour categories are related to gender and school performance and whether a dual understanding of gender in school is helpful when trying to explain achievement differences as supposed to classroom behaviour categories. Analyses showed that gender was a better predictor of school achievement than classroom behaviour categories, even though the behaviour categories did contribute to the explanation of variance in students’ academic marks above and beyond gender.  相似文献   

The diversity of university disciplinary profiles in research and teaching     

Angelika Tsivinskaya 《Higher Education Quarterly》2023,77(4):853-873

Is the ideal of a one-size-fits-all university model—where universities are capable of successfully performing all competencies simultaneously—ever achievable? Has the balance between teaching and research activities grown even more fragile or is such a balance unfeasible? In this paper, we review studies of institutional diversity in higher education and bibliometric analyses. We prose a two-dimensional typology based on diversity in teaching and research by scientific fields. We investigate the diversity in teaching and research, respectively, at the disciplinary level and address whether these primary activities mirror each other. As a measure of mismatch between the two activities, we assess the distribution of students and publications by scientific fields through a clustering analysis. Our study of higher education institutions (HEIs) in Russia reveals that private universities are less diverse both in research and teaching and have high teaching intensity compared to state universities. Expectedly, universities in the rankings have more diverse profiles and they have a higher research intensity.  相似文献   

间歇低氧运动对胰岛素抵抗大鼠体成分及血脂指标的影响     

李旭武  翁锡全  林文弢 《广州体育学院学报》2014,(4):93-96

目的:探讨间歇低氧运动对胰岛素抵抗大鼠体成分及血脂指标的影响。方法:将高糖高脂膳食建模成功的48只胰岛素抵抗大鼠随机均分为常氧安静组、低氧安静组、常氧运动组和间歇低氧运动组,每组12只。每天进行1h跑速为25m/min的跑台运动,间歇低氧暴露为4h/d(14.5%O2),7d/w。干预4周末测量各组大鼠体成分及血清TG、TC、HDL-C、LDL-C浓度。结果:与常氧安静组比较,间歇低氧安静组、常氧运动组和间歇低氧运动组大鼠体重、肾周脂肪及附睾脂肪重量均出现显著性或极显著性下降(P0.05,P0.01),并以间歇低氧运动组下降最多,而股四头肌及腓肠肌虽有下降,但无统计学意义(P0.05),同时,血清脂代谢指标TG、TC和LDL-C均出现显著或极显著性低于常氧安静组(P0.05,P0.01),而HDL-C则极显著性高于常氧安静组(P0.01),且以间歇低氧运动组大鼠的效果最佳。结论:间歇低氧运动可以改善胰岛素抵抗大鼠体成分和血脂代谢。  相似文献   

城市画像视角下的政务社交媒体资源保存研究          下载免费PDF全文

叶光辉  郭诚  徐彤  王灿灿 《情报科学》2022,39(2):11-17

【目的/意义】从城市画像视角切入,分析政务社交媒体资源保存路径,以期为建设城市画像档案库和改善 城市面貌提供有力支撑,辅助城市治理和发展。【方法/过程】利用文献综述法和对比分析法,从政务社交媒体资源 保存的项目实践研究和试验研究2个方面分别介绍国内外政务社交媒体资源保存的研究概况,并从理论和实践维 度进行述评,在此基础上探究城市画像视角下的政务社交媒体资源保存。基于城市画像视角,从制度、信息和技术 层面开展政务社交媒体资源保存路径分析,发掘政务社交媒体资源保存问题。【结果/结论】从制度、信息和技术层 面提出保障措施,为城市画像视角下的政务社交媒体资源保存提供支撑。【创新/局限】只分析了城市画像视角下的 政务社交媒体资源保存路径,而未对相关路径进行验证。  相似文献   

普华永道中美网站英文简介文体对比分析     

张宇 《海外英语》2015,(2)

随着全球化和互联网的发展越来越多的中国企业依靠电子商务走出国门，企业英文简介是公司利用网络对外宣传的重要媒介。此文从文体学视角运用个案对比分析方法，从词汇，语法，修辞手段三个层面探究了普华永道企业在美国网站和中国网站上的企业英文简介文本的异同，从中得出跨文化商务沟通启示以建议中国企业在编写企业英文简介时顺应外国文化。分析表明两篇文本均使用了大量及物动词，多次使用现在时和主动语态并且多次应用重复和平行结构修辞手法，但是在难度指数，阅读难易程度，情感表达和正式程度方面表现出不同。  相似文献   

两种方式的健步走对边缘性血脂升高的中年男性血脂及肺通气功能的研究     

孔淑珍  张葆欣  李洁妮  韩国庆  温晓妮  张明军 《北京体育大学学报》2017,40(9):54-59

摘要：目的：探讨2种方式的健步走对边缘性血脂升高中年男性脑力劳动者血脂及肺功能的影响。方法：选取西安市3所高校从事脑力劳动的科研工作者，筛选出符合（血脂水平分层标准）边缘性血脂升高标准的受试者48人，随机分成匀速组和变速组各24人，实施为期12周的健步走。2组采用的运动强度为，匀速组在第二和第三个10～15 min以60﹪～70﹪HRmax为主，变速组以60﹪～70﹪HRmax和70﹪～80﹪HRmax为主，每周4次，每次40～60 min。重点监测受试者运动前、运动4周、运动12周的血脂六项（TC、TG、HDL-C、LDL-C、Apoa1/Apob）和肺通气功能指标（VC、FVC、FEV1/FVC﹪、MVV、VC/Kg）。结果：1）与运动前比较，运动6周，匀速组血脂及肺通气功能各指标无显著性变化（p>0.05）；变速组TC显著降低（p＜0.05），FEV1/FVC﹪、MVV、VC/Kg显著升高（p＜0.05）。运动12周，匀速组TC、TG显著降低（p＜0.05），FEV1/FVC﹪、MVV、VC/Kg显著增高（p＜0.05）；变速组血脂各指标（除Apoa1/Apob外）和肺功能指标（除FVC外）均有显著差异（p＜0.01或p＜0.05）。2）组间比较：运动6周，两组血脂与肺功能各指标无显著性差异（p>0.05）。运动12周，具有显著性差异（p＜0.05）的指标为HDL-C、LDL-C、MVV。3)在不同的运动周期，血脂和肺功能指标的变化幅度均有显著性变化，运动12周明显优于运动6周，变速组变化幅度优于匀速组。结论：1)匀速健步走运动12周，具有明显的调脂效果和提高肺通气功能；变速健步走运动6周，对血脂异常和肺通气功能有显著的改善。运动12周，调脂效果非常显著基本回归正常范围，肺功能显著提高。2)2种方式的健步走，强度较高的变速运动对血脂异常的调脂效果和肺通气功能的提高显著优于匀速运动。  相似文献