新规则视角下男子跆拳道技战术发展趋势——以世界冠军李大勋为例

文章采用文献资料法、专家访谈法、视频分析法和数理统计法，对李大勋在重大国际赛事中的交手回合、基本技术、组合技术的应用频数以及成功率等指标进行统计分析。根据2018-2019年度世界跆拳道联盟公布的最新奥运积分显示，李大勋拥有605.94个奥运积分且高于第二名将近300余分，目前世界排名第一，其技战术风格具有一定的代表性。结果显示：李大勋在比赛中习惯采用前腿侧踢与前腿横踢技术进行主动进攻、控制距离、防守破坏、封堵迎击；利用后腿横踢技术进行补充击打；灵活使用中变中、中变高等变线技术突破对手；新规则后近身贴靠时攻防转换技战术变化多样，"推+踢"技术运用巧妙，增加了其得分手段。分析认为，在实施新规则的比赛中李大勋结合判罚尺度与分值的变化，优化了进攻方式，增加了得分手段，提高了时局节奏，同时反映出现阶段跆拳道项目技战术发展趋势。     

Work–family conflict,relational turbulence mechanisms,conflict tactics and marital satisfaction*

ABSTRACT

This study examined how work–family conflict (WFC) is associated with mechanisms of relational turbulence, conflict tactics, and marital satisfaction. Six hundred and thirty-three married workers completed an online survey. Family interference with work and spouses’ work interfering with one’s family predicted greater relational uncertainty and interference from partners, whereas one’s own work interfering with family did not predict these mechanisms of turbulence. All three sources of relational uncertainty, and interference from partners, predicted increased avoidance and distributive tactic use. Facilitation from partners predicted increased use of integrative tactics. Finally, relational uncertainty, interference from partners, and distributive conflict tactics partially mediated the associations of WFC with marital satisfaction.     

提高学报影响因子的重要意义及其途径

基于影响因子的定义，探讨了提高学报影响因子的意义，认为影响因子是评价学报质量优劣的重要依据和客观指标之一。通过分析影响期刊影响因子的因素，初步给出了提高影响因子的对策。     

Facing and bridging gaps in Web searching

Drawing on the ideas of the Sense-Making approach, the ways in which people face and bridge gaps in Web searching are analyzed. The empirical study is based on videotaped Web searches conducted by seven participants. Altogether 11 gaps and 13 search tactics of various types were identified. The gaps faced by the searchers originated from three major factors: problematic content of information, insufficient search competence and problems caused by the search environment. Of individual gaps, no relevant material available, inaccessible content and confusion were most frequent. Of the search tactics used in gap-bridging, following links and activating the Back button were most popular. Gaps related to the problematic content of information led the informants to redirect the search to find Web pages that focus better on the search topic. If the movement was stopped by insufficient search competence, the searchers tended to return to material that was familiar from earlier use contexts in order to regain control of the search process. Alternatively, they tried to specify the search terms. In cases where the search was interrupted by technical problems or other factors originating from the search system, gap-bridging aimed at returning to familiar and technically reliable links. The Sense-Making theory provides relevant conceptual tools to approach the dynamic and discontinuous nature of Web searching in terms of gap-facing and gap-bridging. The concept of gap-facing enables a context-sensitive analysis of the ways in which Web search processes may be stopped. Gap-bridging indicates a general level motive to find alternative ways to continue searching.     

基于建构主义理论的多媒体课件设计研究

简要介绍了建构主义理论关于学习的基本观点,概括出了建构主义理论对多媒体课件设计的几条指导性原则,并通过实例着重说明了这些指导原则在课件内容的分析、课件结构的设计、课件导航策略和课件交互方式的设计中的应用,本文的研究对多媒体课件的设计实践活动是有一定指导意义的.     

计算机网络安全及网络安全策略

文中阐述了计算机网络安全面临的威胁及其产生的后果，进而说明网络安全来源于安全策略与技术的多样化，同时对网络安全策略进行了论述。     

论篮球战术思想

篮球战术思想既是对篮球具体技战术的概括与提炼 ,又是指导篮球比赛和实践时所用系统战术的自我提高与完善。在我国篮球战术研究相对滞后的情况下 ,全面梳理篮球战术思想 ,界定篮球战术思想的不同类别并展望篮球战术思想发展的态势 ,显得至关重要     

提高大学生英语写作水平的策略

英语写作一直是大学生的一个难题，学生的写作存在不少问题，水平难以提高，针对这一现状，文章探讨了大学英语写作的重要性及要求，分析存在的问题及教学现状，并从教与学两个方面提出了提高大学生英语写作水平的策略。     

中小学语文计算机辅助教学发展现状与启示

中小学语文计算机辅助教学与中小学计算机辅助教学的发展相伴而生,理论发展和软件研究日趋成熟。从教学媒体的开发及其运用,逐渐转向学习资源的设计开发及利用学习资源进行语文学习的研究上,提出了信息技术的"整合"的思想;软件建设也从个别课件的研制向应用开发共享型资源库过渡。教育智慧在语文计算机辅助教学中起着不可替代的作用,区域教育资源建设是推进计算机辅助教学的低成本高收益的可行性方略。     

处于阴影影响下的永州旅游发展策略

湖南永州这一旅游阴影区存在旅游资源阴影、客源区位阴影、交通区位阴影、旅游区形象阴影和人才吸引阴影。其发展策略是:实行产品差异化;塑造特色的旅游形象;加强旅游区域合作,实现优势互补;大力进行人才的引进和培养。