茶氨酸的生理作用及与运动的关系   总被引：1，自引：0，他引：1  

胡柏平  洪涛 《四川体育科学》2006,(2):27-30,33

茶氨酸是茶叶特有的1种氨基酸,是绿茶中有效的呈味物质,含量直接决定茶叶的品质。根据国内外已有的研究成果对茶氨酸的生理作用做一全面综述,并对其与运动的关系做一简要评述。其生理作用有降低血压、抗肿瘤、提高学习和记忆能力、放松、神经保护、抗疲劳、减轻体脂、免疫。茶氨酸是1种十分安全的、无毒的食品添加剂,可以提高运动能力,加速运动后疲劳的恢复,因此,可考虑将茶氨酸作为运动饮料的添加剂。  相似文献   

浅谈发行体育彩票产生的双重效应     

聂丽芳  李志宏 《山东体育科技》2002,24(4):70-71

运用献资料的方法从正、负两方面探讨了我国发行体育彩票产生的效应。体育彩票的发行为我国体育事业带来了活力，但同时在发展过程中也带来了负效应。应该以利除弊，以保障体育彩票产业的健康发展。  相似文献   

运用有限状态图设计图书馆IVR系统     

奉国和 《现代图书情报技术》2006,1(5):74-76

运用有限状态图设计图书馆语音自动应答系统, 以弥补图书馆现有系统的不足，实现以读者为中心的新型信息服务模式，使图书馆的信息服务在广度、深度、效率等方面都有较大的提高。  相似文献   

Supportive communication from bystanders of cyberbullying: indirect effects and interactions between source and message characteristics     

Andrew C. High  Rachel Young 《Journal of Applied Communication Research》2018,46(1):28-51

Cyberbullying is an increasingly common experience that produces psychosocial consequences for targets. Interventions encouraging bystanders to support targets of cyberbullying are limited by a lack of focus on what to communicate. This study considers supportive messages that emphasize emotional comfort, attributions of responsibility, and beliefs that people can change as relevant to this context, and it examines how perceptions of messages differ based on whether support providers have or lack experience with cyberbullying. We extend research on the indirect effects model of supportive communication by randomly assigning participants (N?=?304), who self-identify as targets of cyberbullying, to message and source conditions and assessing their perceptions of messages, providers, and outcomes. Impressions of messages mediate their influence on outcomes, and the experiential similarity of support providers moderates these effects. Certain messages, notably those contending that bullies can change, are less effective when delivered by sources who lack experience with bullying.  相似文献   

Investigating the Role of Problem Severity and Channel Publicness on the Sophistication of Support-Seeking Messages on Social Network Sites: A Replication Study     

Emily M. Buehler  Ashley M. Peterson  Andrew C. High 《Communication Studies》2018,69(3):304-313

Oh and LaRose (2016) contended that problem severity and channel publicness shape support seekers’ goals, time spent composing messages, and the sophistication of those messages. The current study seeks to replicate and extend Oh and LaRose’s study to produce a more accurate understanding of the factors that influence the sophistication of support-seeking messages online. Support seekers’ goals varied according to the severity of a stressor and the publicness of a channel, and the amount of time people spent composing a message influenced its sophistication. We extend the original study by examining associations that were not initially tested. Time spent composing messages mediated the influence of problem severity on the quality of people’s messages, and this effect was moderated by channel publicness.  相似文献   

A post-American world? Assessing the cognitive and attitudinal impacts of challenges to American exceptionalism     

Jason Gilmore  Charles Rowling 《The Communication Review》2018,21(1):46-65

A number of voices have emerged in U.S. political discourse questioning the legitimacy of American exceptionalism, suggesting we are in a “post-American world.” Our research examines the effects that political messages that explicitly challenge American exceptionalism can have on U.S. public opinion. Drawing upon social identity theory, we find that explicit challenges to American exceptionalism significantly impact Americans’ views toward their own nation, their willingness to denigrate foreign publics, and their broader foreign policy preferences.  相似文献   

广告效果下降原因及其对策分析     

查代春 《江西广播电视大学学报》2006,31(4):88-90

广告效果下降是当前广告业的一种普遍现象，成为困扰广告商和广告公司的一个难题。如何创制更有新意、更有效果的广告，使广告传递的商品信息让受众注意、形成记忆、产生行动是广告人努力的方向。本文通过时广告效果下降原因的剖析，提出了相应的对策和措施。  相似文献   

比较文学教学的四个关键词     

吴家荣 《安徽教育学院学报》2011,29(1):116-118

比较文学作为一门学科,内容丰富、学理性强。如何使学生真正了解比较文学学科的价值、意义,使他们正确运用比较文学原理、方法,深入开展文学研究,四个关键词至关重要,即：比较;影响;可比性;变异性。学生只有充分了解关键词的含义,切实掌握了关键词的运用,比较文学的教学才能收到事半功倍的成效。  相似文献   

20世纪30年代粤港走私问题探析     

梁向阳 《五邑大学学报(社会科学版)》2002,4(1):50-53,66

20世纪30年代，基于政治、地理及经济等因素，加之世界经济危机风暴的冲击，粤港两地走私现象日趋猖獗。这不但严重影响了粤港间的正常贸易活动，也造成国货滞销，进而在一定程度上抑制了国内经济的发展。  相似文献   

外语测试的形成性评价观     

何明珠 《株洲师范高等专科学校学报》2007,12(3):90-92

外语测试经历了以语码为纲和以结构为纲的两个时期。现行的外语测试则遵循“以信息为纲”的指导思想。语言测试的结果应能反映学生的语言运用能力，而学生的能力反馈又可常常作为教师的教学反思依据。本文旨在以形成性评价现分析外语测试与评价的一致性和外语测试的多功用性。  相似文献