数据期刊同行评议视角下科学数据质量评价指标识别   总被引：1，自引：1，他引：0  

撒旭  王健  范智萱  刘建平  张贵兰  徐波 《图书情报工作》2020,64(17):123-130

[目的/意义] 在数据期刊同行评议的视角下识别并构建科学数据质量评价指标，增强对科学数据质量评价的理解，为数据论文同行评议实践提供参考。[方法/过程] 利用扎根理论的研究方法，选取20个数据期刊的数据同行评议指南作为质性研究的原始资料，并使用NVivo质性分析软件对资料进行开放式编码、关联式编码和选择性编码，通过理论饱和度检验对编码结果进行检验。[结果/结论] 最终构建数据论文同行评议情境下的科学数据质量评价指标体系，识别出数据内在质量、数据表达质量、数据访问质量和数据效用质量4个主范畴和14个评价指标，并具体分析指标的含义及分类，帮助数据论文作者和评审者深入了解科学数据质量的内在结构。  相似文献   

跨栏步及相关技术的生物力学分析     

陈维科  撒金元 《宁夏师范学院学报》1998,(6)

对110米高栏跨栏步、栏间跑等主要技术进行了生物力学分析,认为提高跨栏跑成绩的关键在于缩短上下栏支撑时间和过栏腾空时间;加快和加大下栏后的第一步的速度和步长,发挥速度早;加快拦间跑步频,改进栏间跑节奏;本文给出了有关技术参数,有助于提高跨栏跑成绩。  相似文献   

Potential of Different Coleus blumei Tissues for Rosmarinic Acid Production     

Nata?a Bauer  Rosemary Vukovi?  Sa?a Liki?  Sibila Jelaska 《Food Technology and Biotechnology》2015,53(1):3-10

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A TIME HAZARD ANALYSIS OF STUDENT PERSISTENCE: A US UNIVERSITY UNDERGRADUATE MATHEMATICS MAJOR EXPERIENCE     

Saïd Bahi  Devin Higgins  Patrick Staley 《International Journal of Science and Mathematics Education》2015,13(5):1139-1160

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I Want You To Be: An Interview with Kirsten Dufour and Finn Thybo Andersen     

Sa Sonjasdottir 《Review of Education, Pedagogy & Cultural Studies》2013,35(1-2):169-174

Three artists who participated in the Pro Bono Committee and Rive and Others, Kirsten Dufour, Finn Thybo Andersen, and Maria Karlsson, took part in the demonstrations in Prague in September 2000 against the WTO meeting.  相似文献   

体育教师职业倦怠现状、成因及对策的研究     

王飒  张宁 《体育科学研究》2011,15(1):86-88

以宁夏高校体育教师职业倦怠的状况为研究对象,运用文献资料法、问卷调查法等方法,对普通高校体育教师职业倦怠进行了深入研究,结果表明：提高体育教师的素质,激发其工作热情,是改善教学质量的有力的科学依据。  相似文献   

金融工具创新之夹层融资——破解科技型中小企业融资难题的可选途径   总被引：3，自引：0，他引：3  

英英  萨如拉 《中国科技论坛》2011,(3)

科技型中小企业融资问题是个世界性的难题,而由于企业自身发展阶段以及尚未完全成熟的资本市场以及信用、贷款体系限制,我国科技型中小企业融资问题更加突出.大力发展和利用衍生金融工具,是解决此问题的有效途径之一.作为一种创新的融资渠道,夹层融资由于其介于股权资本和高级债权之间的地位,而具有灵活性和多样性等诸多优势,已在欧美资本市场广为应用.本文结合我国中小企业融资状况,详细论述了夹层融资作为破解科技型中小企业融资难题的可行性和障碍,并提出相关建议.  相似文献   

The influence of early science experience in kindergarten on children's immediate and later science achievement: Evidence from the early childhood longitudinal study     

Mesut Saçkes  Kathy Cabe Trundle  Randy L. Bell  Ann A. O'Connell 《科学教学研究杂志》2011,48(2):217-235

This study explores the impacts of selected early science experiences in kindergarten (frequency and duration of teachers' teaching of science, availability of sand/water table and science areas, and children's participation in cooking and science equipment activities) on children's science achievement in kindergarten and third grade using data for 8,642 children from the Early Childhood Longitudinal Study‐Kindergarten cohort (ECLS‐K). A theoretical model that depicts the relationships between the study variables was developed and tested using structural equation modeling. Results demonstrated that availability of science materials in kindergarten classrooms facilitated teachers' teaching of science and children's participation in science activities. Likewise, the frequency and the duration of kindergarten science teaching was a significant predictor of children's science activities but not of the children's end of kindergarten science achievement scores. Children's engagement with science activities that involved using science equipment also was not a significant predictor of their end of kindergarten science achievement. However, children's participation in cooking activities was. Children's prior knowledge, motivation, socio‐economic status, and gender were all statistically significant predictors of their science achievement at the end of kindergarten and end of third grade. Results of this study indicate that early science experiences provided in kindergarten are not strong predictors of children's immediate and later science achievement. Findings of the study suggest that the limited time and nature of science instruction might be related to the limited effect of the science experiences. Implications for teacher education programs and educational policy development are discussed. © 2010 Wiley Periodicals, Inc. J Res Sci Teach 48: 217–235, 2011  相似文献   

实践中的教师反思何以可能——现象学视域中的教师反思研究及其现实意义     

胡萨 《教育理论与实践》2011,(25):41-44

基于现象学的哲学视角,在关于反思与原意识之间内在关联的现象学理解中,将对反思的根本理解推进到意识的领域,有助于探寻实践中的教师反思何以可能的问题.在此意义上,我们可以提出“教师反思作为意识”这一种说法.“教师反思作为意识”意味着教师在教之中总是能够对自身“教的意识”的发生有着自觉、清醒的觉察,每当教师反思有所觉察时,教...  相似文献   

文化产业园旅游资源的开发与利用——以北京为例     

李飒 《未来与发展》2015,(3):42-45

文化与旅游结合发展是当代旅游发展的新趋势,发展文化旅游产业的必要性不容置疑。北京市近年来由于自身旅游资源、产品、企业实力、服务体系、管理等方面存在的各种局限性或不足,导致了其文化旅游产业出现竞争力减弱、后劲不足的现象。然而北京文化产业园资源丰富、种类齐全、发展势头强劲,如何利用这些产业园的文化资源,使之与文化旅游融合并共同发展,成为一项全新的重要课题。本文以分析和归纳文化产业园旅游资源为基础,提出一系列切实可行的方案。  相似文献