Evaluation of Korean information infrastructure policy 2000–2010: Focusing on broadband ecosystem change     

Dong-Hee Shin  Sang Hee KweonAuthor vitae 《Government Information Quarterly》2011,28(3):374-387

South Korea has been very active in broadband development for the last decade, which has made major strides in its development. This study evaluates the evolution of Korea's broadband development from the year 2000 to the present day. Historic and archival data related to Korean broadband projects are reviewed in this paper, drawing on broadband ecosystem as a framework for assessment. The purpose of this study is to provide insight into challenges and create a prospectus by offering a socio-technical analysis of broadband development. This will involve the in-depth investigation of the social dynamics, political discourse, and technological choices inherent in the design and development of the next generation of networks. Despite active investment and proactive drive, uncertainty still remains surrounding the evolution of broadband and what impact it may have on the new broadband milieu in Korea. This study will offer an effective adoption/diffusion strategy as well as a viable information policy model for more advanced infrastructure in other countries.  相似文献   

家长参与小学生家庭作业动机问卷的编制   总被引：1，自引：0，他引：1  

李云  桑青松  凌晨 《池州学院学报》2011,25(2):155-158

为编制家长参与小学生家庭作业的动机问卷,依据前期开放式问卷、访谈以及国内外相关研究结果,筛选得到44个项目的初测问卷。初测问卷施测于429名小学生家长,探索性因素分析显示家长参与小学生家庭作业动机问卷由19个项目组成,包括期待积极影响、避免消极影响、家长效能感三个因子。对576名被试进行了正式问卷的测量,验证性因素分析支持家长参与小学生家庭作业动机问卷的结构。综合信度、效度分析的结果,表明家长参与小学生家庭作业动机问卷符合心理测量学的要求,可用于测评小学生家长参与家庭作业动机的状况。  相似文献   

Validity of the X-factor computation methods and relationship between the X-factor parameters and clubhead velocity in skilled golfers     

Young-Hoo Kwon  Ki Hoon Han  Christopher Como  Sangwoo Lee  Kunal Singhal 《Sports biomechanics / International Society of Biomechanics in Sports》2013,12(3):231-246

The purpose of this study was to assess the validity of the X-factor computation methods and to examine whether direct relationships exist between the X-factor parameters and the clubhead velocity in a group of skilled male golfers (n = 18, handicap = ? 0.6 ± 2.1). Five driver trials were captured from each golfer using an optical motion capture system (250 Hz). Two plane-based methods (conventional vs. functional swing plane-based) and one Cardan rotation-based method (relative orientation) were used to compute select X-factor (end of pelvis rotation, top of backswing, ball impact (BI), and maximum), X-factor stretch (stretch and maximum stretch), and X-factor velocity (BI and maximum) parameters. The maximum clubhead velocity was extracted and normalized to golfer's body height to eliminate the effect of body size. A one-way repeated MANOVA revealed that the computation methods generated significantly different X-factor parameter values (p < 0.001). The conventional method provided substantially larger X-factor values than the other methods in the untwisting phase and the meaningfulness of select X-factor parameters generated by this method was deemed questionable. The correlation analysis revealed that the X-factor parameters were not directly related to the maximum clubhead velocity (both unnormalized and normalized).  相似文献   

An Open Government Maturity Model for social media-based public engagement     

Gwanhoo Lee  Young Hoon Kwak 《Government Information Quarterly》2012

Social media has opened up unprecedented new possibilities of engaging the public in government work. In response to the Open Government Directive, U.S. federal agencies developed their open government plan and launched numerous social media-based public engagement initiatives. However, we find that many of these initiatives do not deliver the intended outcomes due to various organizational, technological, and financial challenges. We propose an Open Government Maturity Model based on our field studies with U.S. federal healthcare administration agencies. This model is specifically developed to assess and guide open government initiatives which focus on transparent, interactive, participatory, collaborative public engagement that are largely enabled by emerging technologies such as social media. The model consists of five maturity levels: initial conditions (Level 1), data transparency (Level 2), open participation (Level 3), open collaboration (Level 4), and ubiquitous engagement (Level 5). We argue that there is a logical sequence for increasing social media-based public engagement and agencies should focus on achieving one maturity level at a time. The Open Government Maturity Model helps government agencies implement their open government initiatives effectively by building organizational and technological capabilities in an orderly manner. We discuss challenges and best practices for each maturity level and conclude by presenting recommendations.  相似文献   

Research on Customers-enterprise Knowledge Coordination Evolution Based on Network     

Bu Xinyi  Sang Bin 《情报学报》2012,31(8)

顾客参与已经成为服务创新成功的关键因素,顾客参与企业的服务创新,并与企业的沟通与知识互动过程构成了一个知识协同网络,网络结构影响着知识协同的绩效.本文用复杂网络模型构造了顾客-企业知识协同网络,并通过对知识协同过程进行建模和仿真,对比分析了规则网络、小世界网络、随机网络上的知识协同绩效.研究结果表明:随机网络在初期较有效,但知识协同演化一段时间后,小世界结构上的知识协同绩效最高,这为组织建立有效的知识协同网络提供了依据和指导.  相似文献   

基于创新型人才培养的大学生科研训练模式探析     

申天恩  邓长辉  桑田成 《教育与教学研究》2012,(8):65-66,75

培养创新型人才是中国高等教育的重要使命。日前,部分高等学府在创新型人才培养模式中所推行的大学生科研训练,在意识层面、行为实施层面及成果展示层面均存在若干不足。应建构以科研训练计划为载体的、塑造零起点全程化的科研训练体系,通过组织机构调整、制度建设健全以及实施机制完善等措施为创新型人才培养保驾护航。  相似文献   

简述哥本哈根语言学派     

桑勇 《辽宁教育行政学院学报》2007,24(7):85-87

哥本哈根语言学派是结构主义三大流派之一,是继布拉格学派之后在20世纪30年代的欧洲出现的又一个结构主义语言学研究中心。这一语言学派主要研究语言的符号性质,并从形式和实体方面分析语言,是对索绪尔关于语言是符号系统理论的发展。  相似文献   

Nonlinear Growth Mixture Models With Fractional Polynomials: An Illustration With Early Childhood Mathematics Ability     

Ji Hoon Ryoo  Timothy R. Konold  Jeffrey D. Long  Victoria J. Molfese  Xin Zhou 《Structural equation modeling》2017,24(6):897-910

Applications of growth mixture modeling have become widespread in the fields of medicine, public health, and the social sciences for modeling linear and nonlinear patterns of change in longitudinal data with presumed heterogeneity with respect to latent group membership. However, in contrast to linear approaches, there has been relatively less focus on methods for modeling nonlinear change. We introduce a nonlinear mixture modeling approach for estimating change trajectories that rely on the use of fractional polynomials within a growth mixture modeling framework. Fractional polynomials allow for more parsimonious and flexible models in comparison to conventional polynomial models. The procedures are illustrated through the use of math ability scores obtained from 499 children over a period of 3 years, with 4 measurement occasions. Techniques for identifying the best empirically derived growth mixture model solution are also described and illustrated by way of substantive example and a simulation.  相似文献   

Strategies to Encourage Mathematics Learning in Early Childhood: Discussions and Brainstorming Promote Stronger Performance     

Ji Hoon Ryoo  Victoria J Molfese  E. Todd Brown 《Early education and development》2018,29(4):603-617

This longitudinal study examined the influence of prekindergarten teacher characteristics and classroom instructional processes during mathematical activities on the growth of mathematics learning scores in prekindergarten, kindergarten, and first grade. Participants attended state-funded and Head Start prekindergarten programs. Mathematical performance was measured in fall and spring in prekindergarten and spring in kindergarten and first grade using the Test of Early Mathematics Ability–3 (TEMA-3; Ginsburg & Baroody, 2003). Two dimensions of the Classroom Assessment Scoring System (CLASS; i.e., instructional learning formats and concept development; Pianta, La Paro, & Hamre, 2008) were scored based on observed classroom mathematics activities. Teachers provided information about their education and years of prekindergarten teaching experience. Research Findings: Instructional processes that included elements of the CLASS concept development dimension, such as discussions and brainstorming to encourage children’s understanding, were related to growth of mathematics scores. Neither teacher characteristics nor instructional processes of the CLASS instructional learning formats dimension, such as using different modalities and materials, and learning objectives, were related to growth of mathematics scores. Practice or Policy: The findings extend our understandings of how instructional processes impact children’s early mathematical performance. These findings may be helpful in increasing our understanding of the types of instructional processes that might be emphasized in teacher professional development specifically related mathematical activities. Professional development that focuses on the CLASS concept development dimension may be easier for teachers to remember and implement in their classrooms and, consequently, have a greater impact on mathematics learning.  相似文献   

A “Chameleonic” Identity: Foreign-Born Doctoral Students in U.S. Counselor Education     

Claudia G. Interiano  Jae Hoon Lim 《International journal for the advancement of counseling》2018,40(3):310-325

This study explored the interplay between a multidimensional model of acculturation and professional identity development among eight foreign-born doctoral students in U.S. counselor education. Themes generated through an interpretive phenomenological analysis revealed that the participants, while trying to adapt to the Euro-American cultural context of their counselor programs, experienced a sense of conflict, loss, and grief, resulting in what they called a “chameleonic” professional identity. Findings illustrated that for international counseling students, professional identity development is an arduous and complex process deeply intertwined with their acculturation experiences. Implications for counselor programs and future research are further discussed.  相似文献