论篮球运动的本质、特征及规律   总被引：18，自引：1，他引：17  

杨桦 《成都体育学院学报》2001,27(4):60-62

篮球运动的本质指篮球运动内部根本矛盾的特殊性,即在强力对抗下的准确.篮球运动的特征可概括为:高空性、瞬时性、对抗性、多变性、主体性及观赏性.篮球运动的规律是指篮球运动发展变化过程中起主导作用的本质联系和必然趋势,具体体现为:准确转化、高速均衡、攻守平衡.  相似文献   

Embellishing Problem-Solving Examples with Deep Structure Information Facilitates Transfer     

Hee Seung Lee  Shawn Betts  John R. Anderson 《Journal of Experimental Education》2017,85(2):309-333

Appreciation of problem structure is critical to successful learning. Two experiments investigated effective ways of communicating problem structure in a computer-based learning environment and tested whether verbal instruction is necessary to specify solution steps, when deep structure is already embellished by instructional examples. Participants learned to solve algebra-like problems and then solved transfer problems that required adjustment of learned procedures. Experiment 1 demonstrated that verbal instruction helped learning by reducing learners' floundering, but its positive effect disappeared in the transfer. More importantly, students transferred better when they studied with examples that emphasized problem structure rather than solution procedure. Experiment 2 showed that verbal instruction was not necessarily more effective than nonverbal scaffolding to convey problem structure. Final understanding was determined by transparency of problem structure regardless of presence of verbal instruction. However, verbal instruction had a positive impact on learners by having them persist through the task, and optimal instructional choices were likely to differ depending on populations of learners.  相似文献   

An Autoethnographical Study of Culture,Power, Identity and Art Education in Post‐Colonial South Korea          下载免费PDF全文

Ok‐Hee Jeong 《The International Journal of Art & Design Education》2017,36(1):9-20

This article reflects my experiences of learning art in the 1970s and 1980s and my teaching career in school art education in twenty‐first century South Korea. This autobiographical reflection shows how I have struggled with my identity as an art teacher in the post‐colonial context of Western influences on Korean society since World War II. There has been greater tension and a greater struggle for different values, practices and identities when new values and practices have been introduced into the particular socio‐cultural context of South Korea. My struggles with particular kinds of pedagogic identity valued within the rapidly changing political, economic and cultural context of Western influences on Korean art education demonstrate the hidden structural mechanism of the relationship between culture, power and identity in the post‐colonial world of globalisation. This study as an autoethnographical research provides critical insights into how identities are produced by pedagogic discourses and practices of art education that are constructed through the specific systems of practice and language which transmit and regulate such identities and values.  相似文献   

分支系统学当前的理论和方法概述及华东地区山胡椒属十二个种的分支系统学研究   总被引：5，自引：0，他引：5  

桑涛  徐炳声 《中国科学院研究生院学报》1996,34(1):12-18

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The effects of learning authenticity on the learning achievements in the online corporate training programme     

Sun‐Hee Park  Misun Kim  Daeyoul Yu 《British journal of educational technology : journal of the Council for Educational Technology》2011,42(2):E37-E41

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高职院校“四位一体”绿色教育体系的构建     

桑雷  马蕾 《职教通讯》2011,(9):68-70

绿色教育是科学发展观指导下的科学教育观。以高职绿色教育为研究基点,深入分析当前高职绿色教育存在的主要问题,提出融绿色校园、绿色教学、绿色管理、绿色服务"四位一体"的高职绿色教育体系基本框架。  相似文献   

Accessibility of U.S. federal government home pages: Section 508 compliance and site accessibility statements     

Abiodun Olalere  Jonathan LazarAuthor vitae 《Government Information Quarterly》2011,28(3):303-309

U.S. federal websites are required to be accessible for people with impairments. However, despite the existing regulations and guidelines, many federal websites continue to be inaccessible, and accessibility policy statements available on federal websites often do not provide any useful information. This paper provides three contributions to the research literature: (1) an accessibility evaluation of 100 federal home pages using both human and automated methods, (2) a content analysis of existing website accessibility policy statements, and (3) a discussion of the relationship between actual Section 508 compliance and the existing accessibility policy statements on a website. The paper concludes with recommendations for improving policy related to Section 508 compliance for websites.  相似文献   

How do congressional members appear on the web? Tracking the web visibility of South Korean politicians     

Yon Soo Lim  Han Woo ParkAuthor vitae 《Government Information Quarterly》2011,28(4):514-521

The web visibility of politicians has substantial implications for the internet and politics. In this regard, the present paper examines the web visibility of South Korea's 18th National Assembly members. This study identifies those members with the highest web visibility and determines the factors affecting their web visibility by using a set of socio-demographic variables indicating web visibility. The concept of web visibility is operationally defined as the number of web mentions of each congressional member. Web mentions of the name of each congressional member were collected across many platforms, including blogs, images, news, and websites, by using a Naver search tool based on the API, and relationships between the web visibility of the members and their socio-demographic attributes (their gender, age, term, constituency, and party affiliation) were analyzed using Kruskal–Wallis, Median, and Mann–Whitney U tests. The most visible politicians in the Korean webosphere had highly qualified political careers and prominence, and the difference in politicians' web visibility depended on their political attributes (their term, constituency, and party), not on their demographic attributes (their gender and age). These findings suggest that politicians who build political power and influence through their political career in the offline world are likely to be more visible in the webosphere. Further, an integrated indicator based on politicians' web visibility status can reflect their “ubiquitous presence” in Korea's digitalized society.  相似文献   

E-Government readiness index: A methodology and analysis     

Anteneh Ayanso  Dipanjan Chatterjee  Danny I. ChoAuthor vitae 《Government Information Quarterly》2011,28(4):522-532

E-Government has received significant attention as digital technologies transcend private businesses and serve as a basic source of transformation in government functions. One most notable project is the United Nations Public Administration Network (UNPAN) that assesses the e-Government readiness of the 192 member nations according to a quantitative composite index involving website assessment, telecommunication infrastructure, and human resource endowment. However, the UNPAN index, though rich in depth and breadth of data collection, relies on a method that is a simple mathematical average of the values of the variables measured. This paper revisits the UNPAN index and proposes alternative indices based on principal components analysis (PCA). Using the UNPAN survey data, four different versions of the index are presented and the resulting rankings of the nations are examined vis-à-vis the existing ranking. The theoretical and policy implications of the proposed methodology and its results are discussed.  相似文献   

The forgotten promise of e-government maturity: Assessing responsiveness in the digital public sector     

Kim Normann Andersen  Rony Medaglia  Ravi Vatrapu  Helle Zinner Henriksen  Robin GauldAuthor vitae 《Government Information Quarterly》2011,28(4):439-445

Assessing e-government responsiveness is one of the major gaps in the currently dominant e-government maturity models. While we have a relatively large pool of models focusing on technological and organizational integration from a supply side perspective, measures of responsiveness of e-government systems from a user perspective are still lacking. Replicating a study from New Zealand and Australia, this study explores the response time and quality of e-mail response in Danish local and central governments (N = 175). Despite that Denmark is high ranking in international benchmark studies, we find that one third of central government agencies did not respond at all, and close to 80% of the ministries provided none or incomplete answers. Local government responds faster and provides answers that are more complete and accurate than those provided by central government. Implications for e-government are discussed.  相似文献