The effects of CD-ROM storybook reading on Israeli children’s early literacy as a function of age group and repeated reading     

Ofra Korat 《Education and Information Technologies》2009,14(1):39-53

The effects of reading a CD-ROM storybook on children’s early literacy were examined as a function of their age group and the number of times they used the software. The investigation was carried out on 214 children: 108 pre-kindergarten children (aged 4:2 to 5:3) and 106 kindergarten children (aged 5:3–6:4). This population included 107 girls and 107 boys. The children in each group were randomly assigned to one of three groups. The first intervention group was afforded three CD-ROM storybook reading sessions. The second group was afforded five reading sessions and the third group served as a control and was afforded the regular kindergarten program. Pre- and post-intervention early literacy measures included vocabulary, word recognition and phonological awareness. No age group differences were found between the children’s early literacy progress after using the software and no interaction was found between age group and the number of reading sessions. Children from both age groups exhibited a similar level of story comprehension. Children who used the software five times exhibited greater progress in word meaning than those who used it three times and children in both of these groups did better than the control group. Children who used the software five times exhibited greater progress in word reading and phonological awareness than children in the control group. Implications for future research and education are discussed.  相似文献   

Characterizing the frequency of repeated citations: The effects of journal,subject area,and self-citation     

W.B. Lievers  A.K. Pilkey 《Information processing & management》2012

Previous studies have repeatedly demonstrated that the relevance of a citing document is related to the number of times with which the source document is cited. Despite the ease with which electronic documents would permit the incorporation of this information into citation-based document search and retrieval systems, the possibilities of repeated citations remain untapped. Part of this under-utilization may be due to the fact that very little is known regarding the pattern of repeated citations in scholarly literature or how this pattern may vary as a function of journal, academic discipline or self-citation. The current research addresses these unanswered questions in order to facilitate the future incorporation of repeated citation information into document search and retrieval systems. Using data mining of electronic texts, the citation characteristics of nine different journals, covering the three different academic fields (economics, computing, and medicine & biology), were characterized. It was found that the frequency (f) with which a reference is cited N or more times within a document is consistent across the sampled journals and academic fields. Self-citation causes an increase in frequency, and this effect becomes more pronounced for large N. The objectivity, automatability, and insensitivity of repeated citations to journal and discipline, present powerful opportunities for improving citation-based document search.  相似文献   

A temporal perspective on repeated ties across university-industry R&D consortia     

《Research Policy》2019,48(9):103829

Divergent time norms between participating organizations constitute a central barrier to cross-sectoral collaborations. We unpack this tension by studying two distinct time-utilization strategies of university and industry in 1845 R&D consortia. The paper shows that collaborating organizations that are subject to divergent time norms can shift the time focus in their favor through the strategic timing of repeated ties. If university-industry consortia are repeated, this repetition tends to take place either at the beginning of the consortium (parallel timing) or at the end (sequential timing) but typically not in the middle. Industry partners seek to “compress time” by working on different consortia in parallel and therefore want to repeat a collaboration early, whereas universities seek to “extend time” through sequential timing of consortia, i.e., repeat a collaboration at the end or after a consortium has ended. We provide a qualitative substantiation of the identified time-utilization strategies and show that both options coexist in multipartner consortia.  相似文献   

城市地下综合管网地理信息系统的设计与实现     

顾红生 《鞍山师范学院学报》2009,11(2):56-59

利用G IS管理城市的地下综合管网是一个有效的手段,也是建立数字化城市的基础.本文通过城市地下综合管网开发的具体实例,分析了地下综合管线开发的系统结构、功能以及关键技术,为城市地下综合管线的系统建设提供了借鉴方案和基本思路.  相似文献   

网上信息服务的主动性及其相关技术*   总被引：16，自引：2，他引：14  

焦玉英  李进华 《现代图书情报技术》2002,18(2):56-58

论述了网上信息服务的主动性的三种主要技术:“推”技术, 垂直门户技术, 智能代理技术及这三种技术各自的特点及目前国内外状况。  相似文献   

高管垂直薪酬差距是政府补助与企业研发投入的传导路径？——董事会规模的调节作用     

任鸽  孙慧 《研究与发展管理》2019,31(6):70-79

尽管前期研究大量探讨了政府补助对企业研发投入的直接影响，但两者关系的传导路径和情境机制却鲜有研究涉及。鉴于此，本研究以高管垂直薪酬差距为中介变量，董事会规模为情境变量，重新审视了政府补助对企业研发投入的影响。利用中国中小板上市公司2011-2016年的经验数据，本研究发现：第一，政府补助对中小企业的研发投入存在明显的“刺激效应”；第二，高管垂直薪酬差距在政府补助与研发投入两者关系间发挥了部分中介作用；第三，随着董事会规模的扩大，高管垂直薪酬差距对企业研发投入的正向影响将随之增强，但董事会规模对政府补助与高管垂直薪酬差距两者关系无显著影响。本研究有助于完善文献对政府补助作用于研发投入的路径与后果的认识，对中小企业调整高管团队薪酬结构和完善董事会治理亦具有重要的启示意义。  相似文献   

由《谈一封被窃的信》到《蝴蝶君》：对黄哲伦作品的拉康式解读     

宋美琼 《齐齐哈尔师范高等专科学校学报》2011,(6):49-51

本文通过对《谈〈被窃的信〉》与《蝴蝶君》这两个文本的分析比较,用拉康在《谈〈被窃的信〉》中所运用的精神分析理论对后者进行解构,以避开对《蝴蝶君》的传统后殖民主义与东方主义解读,试图从个人心理的角度阐释戏剧中错综复杂的人物关系以及基于无意识控制下＂菲勒斯＂如何作用于伽里玛二十年对＂蝴蝶＂的畸形恋情。  相似文献   

荷兰乳业产业链纵向组织关系研究——基于利益关联视角     

潘斌 《科学与管理》2009,29(2)

进入新世纪后,我国乳业发展进入了高速增长阶段。国家未雨绸缪,及时出台了《国务院关于促进奶业持续健康发展的意见》政策,以期扶危解困,实现乳业整合。政策的出台固然重要,但如何建立一个乳业内部的长期有效合理的机制才是根本。本文通过分析荷兰乳业的产业结构和其所表现出来的纵向组织关系,试图从生产、加工和销售等产业链上各环节的利益关联剖析荷兰乳业合作社中稳定、持续成功运作、发展的经验和启示,从而得以借鉴并加速我国乳业产业化调整的进程,促进我国乳业健康、高效的发展。  相似文献   

横断山区垂直气候的几个问题   总被引：9，自引：0，他引：9  

张谊光 《资源科学》1998,20(3):12-19

根据云岭白马雪山3a多的垂直气候观测资料分析,气温垂直递减率比一般地区大,西坡为0.71℃/100m;在一定海拔高度范围内,降水量随高度升高而增加,在“三江”最狭窄的平等岭谷地段,最大降水高度出现在背风坡（东坡）上部海拔3700-3800m之间;风对降水量的影响显著,风口处的(横断山区、垂直气候、递减率  相似文献   

历史教学中应注意纵比教育     

索万喜 《雁北师范学院学报》2000,16(5):76-76

通过对中华民族从古到今的历史状况的比较,使学生认识中华民族的优良传统和近代所受的耻辱,从而激发其民族自尊心和自信心,这样既完成了教学任务,又实现了爱国主义思想教育。  相似文献