场地转换视角下世界优秀男子网球单打运动员技术策略分析     

郭莹  朱盼 《中国体育科技》2020,(6):76-82

目的:寻找不同场地的制胜技术策略与场地转换过程中的技术策略变化特点。方法:运用较小时间单元的技术指标(盘数据),对2018年男子单打四大满贯公开赛,共计73场比赛的单盘数据,进行不同场地胜负者Wilcoxon Signed Ranks Test检验分析,并用Kruskal Wallis Test检验(通过Bonferroni校正)对场地之间技术指标进行差异性检验及多重事后比较分析。结果:1)2018年四大满贯男子比赛,不同场地平均每场盘数:草场>红土>硬地;2)硬地与红土,ACE/%指标具有显著差异,2种场地的各项指标数据均值相差较小。红土与草地,6项技术指标具有显著差异,双误、一发进区率未见显著差异,2种场地的各项指标数据均值相差最大。草地与硬地,7项技术指标具有显著差异,制胜球未见显著差异,数据均值差异小于草地与红土的差异;3)不同场地之间显著差异指标的个数:硬地与红土1个,红土与草地6个,硬地与草地7个。结论:场地不同需要运动员采用不同的技战术策略,注重场地转换过渡期中技术策略思想转变。硬地转红土,注重战术策略趋同性特点变化,发球以限制接得分为主,控制非受迫性失误,整体技战术策略守大于攻。红土转草地,技术指标差异最大,技术策略调整最大,转变防守反击思想,草地发球相关技术更为重要,草地盘数多于红土,整体技战术策略攻大于守。草地转硬地,技术策略接近,硬地需要减少双误,提高一发进区率、二发得分率,注重技术的全面性,整体技战术策略攻守平衡。  相似文献   

新时代体育观研究综述     

蔡忠楷  李健康  张新英 《湖北体育科技》2020,(1):13-16

为深入领会习近平新时代体育观对我国体育产业和体育事业的重要引领思想,挖掘习总书记新时代体育思想的重要价值,采用文献资料法,比较分析法,梳理2013~2018年习总书记关于体育工作的重要论述以及我国学者对习近平体育观的相关研究,从习近平新时代体育观的思想渊源、提出背景、重要载体和研究特点等方面全面介绍习近平新时代体育观的起源、发展和最新研究进展,并对当前新时代体育观研究的诸种述要进行梳理。研究结论认为,目前新时代体育观研究领域内有效研究不足,需在内涵研究、应用研究、影响研究和比较研究方面做出更大改进。  相似文献   

Social media and students’ behavioral intentions to enroll in postgraduate studies in Kenya: a moderated mediation model of brand personality and attitude     

Gabriel Simiyu  Ronald Bonuke  Joyce Komen 《Journal of Marketing for HIGHER EDUCATION》2020,30(1):66-86

ABSTRACT

Using cross-sectional data from 504 students from four Kenyan universities, this study evaluates the indirect effect of brand personality on the relationship between social media and students’ behavioral intentions to enroll in postgraduate studies. Additionally, the study examines the moderating effect of attitude on the relationship between social media and brand personality, social media and students’ behavioral intentions, brand personality and students’ behavioral intentions. Finally, it investigates the moderating effect of attitude on the indirect process of brand personality on the relationship between social media and students’ behavioral intentions. The study is guided by the Theory of Planned Behavior, Technology Acceptance Model and Self Congruity Theory. Process Macro is used to analyze data. Results indicate that social media significantly predicts students’ behavioral intentions and this relationship is partially mediated by brand personality. Besides, attitude moderates the relationship between social media and students’ behavioral intentions and also the relationship between brand personality and students’ behavioral intentions. Finally, attitude has a conditional effect on the indirect relationship between social media and student’s behavioral intentions via brand personality and this effect is much stronger with a higher level of attitude. These findings contribute new knowledge to literature and theory.  相似文献   

From user-generated data to data-driven innovation: A research agenda to understand user privacy in digital markets     

《International Journal of Information Management》2021

In recent years, strategies focused on data-driven innovation (DDI) have led to the emergence and development of new products and business models in the digital market. However, these advances have given rise to the development of sophisticated strategies for data management, predicting user behavior, or analyzing their actions. Accordingly, the large-scale analysis of user-generated data (UGD) has led to the emergence of user privacy concerns about how companies manage user data. Although there are some studies on data security, privacy protection, and data-driven strategies, a systematic review on the subject that would focus on both UGD and DDI as main concepts is lacking. Therefore, the present study aims to provide a comprehensive understanding of the main challenges related to user privacy that affect DDI. The methodology used in the present study unfolds in the following three phases; (i) a systematic literature review (SLR); (ii) in-depth interviews framed in the perspectives of UGD and DDI on user privacy concerns, and finally, (iii) topic-modeling using a Latent Dirichlet allocation (LDA) model to extract insights related to the object of study. Based on the results, we identify 14 topics related to the study of DDI and UGD strategies. In addition, 14 future research questions and 7 research propositions are presented that should be consider for the study of UGD, DDI and user privacy in digital markets. The paper concludes with an important discussion regarding the role of user privacy in DDI in digital markets.  相似文献   

体育强国建设下幼儿家庭体育的现象学研究     

白翠瑾  李哲  杨光 《沈阳体育学院学报》2020,(2):34-40

2019年是中国体育划时代的一年,以《体育强国建设纲要》的颁布为起点开启了体育事业的全新征程。幼儿家庭体育是学前教育的薄弱环节,父母的体育引导是家庭体育的重中之重。采用现象学方法,以幼儿父母访谈为抓手诠释幼儿家庭体育现象。结果认为:父母观念下幼儿家庭体育的掣肘包括主观因素的理念束缚、安全焦虑、指导孱弱、精力局限,客观因素的经济无力、规划无序、保障无依。针对存在障碍提出化解路径:通过革新理念调解传统意识的偏颇,通过制定指南消解育教于体的困惑,通过家园共育缓解精力、经济的压力,通过社会支持纾解供需之间的失衡。  相似文献   

Chinese university EFL teachers’ beliefs and practices of classroom writing assessment     

《Studies in Educational Evaluation》2020

This study investigates the extent to which university teachers’ beliefs about classroom writing assessment are congruent with their self-perceived practices in English-as-a-foreign-language (EFL) contexts, and what factors contribute to belief-practice inconsistencies. Drawing on data from a survey of 136 Chinese university EFL writing teachers and ten teacher interviews, results showed a degree of belief-practice alignment regarding assessment for learning (AfL) practices that make learning explicit, but belief-practice discrepancies were more salient. AfL practices that empower students to take responsibility in writing assessment were perceived to be more important than assessment of learning practices; however, the reverse was found in teachers’ practice. Impacts of micro-level factors including assessment training, teaching experience, student attributes, meso-level school factors, and macro-level assessment culture are discussed, and implications are drawn.  相似文献   

Dissection in the Modern Medical Curriculum: An Exploration into Student Perception and Adaptions for the Future     

Arunan Jeyakumar  Bhanuka Dissanayake  Lakal Dissabandara 《Anatomical sciences education》2020,13(3):366-380

For centuries cadaveric dissection has been a cornerstone of medical anatomy education. However, time and financial limitations in modern, compressed medical curricula, coupled with the abundance of alternate modalities, have raised questions about the role of dissection. This study was designed to explore student perceptions of the efficacy of a dissection program for learning musculoskeletal anatomy, and possible adaptations for appropriate inclusion of dissection in the modern medical curricula. A paper-based questionnaire was used to collect data from 174 medical students after completion of cadaveric dissections. Data were analyzed using both quantitative and qualitative methods. Students strongly believed that cadaver-based learning is essential to anatomy education and modern teaching modalities only complement this. Moreover, most students reported that dissection provided an additional, immersive learning experience that facilitated active learning and helped in developing manual competencies. Students with previous dissection experience or an interest in anatomy-related specialties were significantly more likely to attend dissection sessions. Students found that the procedural dissection components enhanced the knowledge of applied anatomy and is beneficial for the development of clinical skills. They welcomed the idea of implementing more procedure-based dissections alongside lectures and prosections-based practical (PBP) sessions. Cadaveric dissection plays an integral role in medical anatomy education. Time restraints and an increased focus on clinical significance, however, demand carefully considered adaptations of existing dissection protocols. The introduction of procedure-based dissection offers an innovative, highly engaging and clinically relevant package that would amalgamate skills essential to medical practice while retaining the benefits that have allowed dissection to stand the test of time.  相似文献   

中央苏区时期毛泽东的民生思想探源     

何旗 《黄冈职业技术学院学报》2011,13(2):57-60

中央苏区时期毛泽东对民生问题的思考、有关论述以及践行蕴含了极为丰富的民生思想。尽管这一思想是以后才明确丰富起来的,但在中央苏区时期就显出其雏形。它的产生有着深厚的历史、理论和实践渊源：以我国传统文化中的民本思想为历史之源;以马克思主义唯物史观为理论之源;以科学总结我国革命斗争经验为实践之源。  相似文献   

Intercultural Difference and Speaker’s Intention     

王艳  鄢家利  曾绪 《读与写:教育教学刊》2011,(9):12

Every word has its meaning,which includes both surface meaning and deep meaning.To achieve certain pragmatic effects,speakers often have certain intention when saying something.People in different cultures think differently with the same utterance,which is attributed to intercultural difference.  相似文献   

90后大学生思想意识现状调查与分析   总被引：1，自引：0，他引：1  

孙定海 《巢湖学院学报》2011,13(1):161-164

为了更好地掌握90后大学生思想意识教育的现状,有针对性地对其进行教育,近期笔者以安徽巢湖学院为代表进行了一次关于90后大学生思想意识教育的调查,调查显示,90后大学生的思想意识状况总体上是良好的,但还是存在不少问题,需要更进一步地改进。  相似文献