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71.
何有世  黄钦炎  熊强 《情报杂志》2012,31(5):128-133
电子政务服务外包的成功很大程度上取决于外包模式的正确选择与潜在风险的有效掌控,研究其潜在风险对外包模式的影响对外包模式选择、风险防范具有较高的参考价值。在分析总结电子政务服务外包主要模式(BOT、BOO、BT、ASP)的关键成功因素和潜在风险因素的基础上,构建潜在风险影响外包模式选择的结构方程模型,分析"决策与合同管理风险"、"开发与运营管理风险"、"资金与成本管理风险"、"知识与战略管理风险"四类潜在风险对各外包模式的作用机制及影响程度,并依此提出外包模式选择的参考建议。  相似文献   
72.
目的:应用ActiGraph GT3X对网球运动等非周期性运动能量消耗进行测评,建立适合网球运动能耗预测的回归方程,从而丰富ActiGraph测量体系.方法:以K4b2测量值作为校标,分别在拍柄、持拍手手腕外侧、腰部髂肌外侧、大腿中央前侧和脚踝外侧(持拍手同一侧肢体)各佩戴一个加速度计(ActiGraph GT3X),同步对网球运动中不同球速下(30 km/h、60 km/h)的原地正、反手击球,侧向移动正、反手击球,向前移动正、反手击球,侧向移动正反手交替击球和模拟自由单打的运动过程进行监测.结果:腰部、大腿和踝关节部位GT3X的EE和MET预测值存在明显低估,与K4b2测量值一致性较低;手腕和拍柄部位GT3X的EE和MET预测值存在明显高估,与K4b2测量值一致性较低;研究建立了2个网球运动能耗预测回归方程,经检验其预测值与实测值没有显著性差异.结论:运用ActiGraph GT3X对网球等隔网对抗运动项目进行监测存在显著误差,EE和MET的预测存在明显高估或低估的现象;基于ActiGraph GT3X所建立的能耗预测方程能对网球运动进行有效的运动监测.  相似文献   
73.
Previous studies have distinguished cognitive, occupational status and network mechanisms in the relation between education and ethnocentrism. Hypotheses on these mediating mechanisms are derived from socialization theory, realistic group threat and contact theory. In the current study we use structural equation modeling to investigate the explanatory power of these three mechanisms simultaneously. The analysis is based on a representative population survey from the Netherlands (NELLS 2009, n = 1910). The results show that more than half of the initial association between education and ethnocentrism can be attributed to cognitive ability and occupational status mechanisms. The remaining part of the overall association, however, still has to be modeled as a direct relationship between education and ethnocentrism. This direct association can be attributed either to social desirability or to a direct liberalizing effect of education on social and political attitudes. Our analysis tentatively suggests that the rise of average education levels in Western societies might lead to less ethnocentric attitudes via the cognitive sophistication mechanism.  相似文献   
74.
运用文献资料法、数理统计法、调查法,根据我国健康行为教育开展情况,构建中学生体育健康行为干预模型,通过分析模型得出对中学生体育健康行为干预首要考虑的是情绪调控,其次分别是健康知识、锻炼意识及环境适应,并给出在体育教学中实际中学生健康行为发展干预的相关建议,明确体育健康行为教育的目的性、有效性,为当前学校体育教育落实提升学生核心素养提供力所能及的帮助。  相似文献   
75.
Within policy discourses, teachers are positioned as objects of reform who enact policies under rational systems of observation and accountability and are, therefore, situated as de-professionalized actors lacking expert knowledge. This research project asks relatively straight-forward questions: If practicing teachers were given a voice in political debates over urban education policy and reform, what would they say? What macro-level policy problems would they identify as being important? Findings indicate the primary policy problems include Systemic Inequity and Bad Policy. The primary policy solutions include, Schools as a Community Resource; Shared Decision-Making; Contextual Goals; and Time, Space and Resources.  相似文献   
76.
The present study investigates the relationship between CEO’s information literacy and innovation in small and medium-sized enterprises (SMEs). Even if information literacy’s business value has been recognized in recent literature, its impact on organizational innovation, a critical and strongly information intensive process, has never been studied before. Structural equation modeling based analysis of data collected from 184 company CEOs in Finland revealed that CEOs’ information literacy has a positive impact on the development of exploratory and exploitative innovations in SMEs. Additionally, opportunity recognition mediates the relationship between information literacy and innovation. Overall, the influence of information literacy is slightly stronger on exploitation than exploration. Nevertheless, the mutual positive effect suggests that information literacy enhances innovation ambidexterity in organizations. Based on these findings, we discuss theoretical and practical implications as well as future research opportunities in workplace information literacy research.  相似文献   
77.
本研究通过对2239名大学生进行肺活量、50米、立定跳远、握力、坐位体前屈、男1000米、女800米和仰卧起坐项目测试,采用数理统计、相关性、多元逐步回归分析等研究方法,建立大学生肺活量回归方程:男生肺活量(mL)=2949.95(mL)+26.67×握力(Kg)+5.52×坐位体前屈(cm);女生肺活量(mL)=1913.40(mL)+18.03×握力(Kg)+2.34×立定跳远(cm)+3.29仰卧起坐(个)。  相似文献   
78.
结合体育类本科教育的特点,利用结构方程模型(SEM)理论和软件AMOS7.0效应分析,构建了体育类本科毕业论文质量评审指标模型,得到了该模型的4个维度和15个观测指标的标准化负荷系数,从而计算出了各指标的权重系数,该评审指标模型为体育类本科毕业论文质量评审提供了一个新思路.  相似文献   
79.
The topic of diversity has received considerable attention from scholars who study sport within the context of higher education in the USA. But despite this interest in the topic, an in-depth focus on how college and university athletic departments effectively manage diversity is missing from the literature. Therefore, we conducted an intrinsic case study of an American university athletic department in efforts to highlight its unique diversity culture (i.e. how it creates and sustains a culture of diversity and inclusion) and the potential impact this culture could have on its various educational stakeholders, and how they interact in this organizational or workplace setting. Findings from our qualitative case study with senior level administrators uncovered two major interrelated themes. First, this institution of higher education has a history and culture of valuing diversity, and this in turn has positively impacted the athletic department's commitment to diversity. Second, the integration of the athletic department into the broader university culture, particularly because of its organizational structure, has enabled this department to better embrace diversity and avoid some of the educational challenges many of its peers face. Research and practical implications are discussed in this study.  相似文献   
80.
休闲体育参加者的休闲动机与主观幸福感的关系   总被引:1,自引:0,他引:1  
采用"休闲动机"、"畅"、"休闲满意度"、"主观幸福感"调查问卷,运用项目分析、因子分析、相关关系分析和构建结构方程模型的方法,对中国图们江区域休闲体育参加者的休闲动机、"畅"、休闲满意度、主观幸福感进行相关关系分析、回归路径分析、验证结构模型验证。首先,通过对各变量之间的因子分析,对未能满足要求的题项进行删除,最终构成其基本框架;其次,休闲动机除情感之间的一些变量并不存在显著的正相关关系外,与"畅"、休闲满意度、生活满意度均存在着显著的正相关关系。"畅"与休闲满意度和生活满意度、生活满意度与休闲满意度各因子之间也存在正相关关系。再次,休闲动机与"畅"、休闲满意度、主观幸福感均具有显著的相互预测作用;"畅"与休闲满意度、主观幸福感也存在显著的相互预测作用;休闲满意度中环境、社会、心理等满意度均与主观幸福感存在显著的相互预测作用,但其余指标均没有直接预测作用。最后,有效验证了中国图们江区域休闲体育参加者的休闲动机与主观幸福感的关系。经过多次模型修正,得到休闲体育参加者的休闲动机与主观幸福感的关系最终模型。  相似文献   
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