Modeling the influences of upper-elementary school students’ digital reading literacy,socioeconomic factors,and self-regulated learning strategies     

Shin-Feng Chen 《Research in Science & Technological Education》2017,35(3):330-348

Background: Reading is an interactive and constructive process of making meaning by engaging a variety of materials and sources and by participating in reading communities at school or in daily life.

Aim: The purpose of this study was to explore the factors affecting digital reading literacy among upper-elementary school students.

Method: A 3-stage stratified cluster sampling was implemented that resulted in a sample of 592 upper-elementary students from 29 classes in 7 schools. Self-Regulated Learning Strategies Assessment (S-RLSA), Digital Reading Literacy Assessment (DRLA), and student reports of their parents’ education backgrounds were used to collect data on the outcome and predictor variables. Interpretation of these data involved two highly regarded statistical techniques. First, structural equation modeling was used to explore relationships amongst the constructs. Second, multi-group invariance (MI) analyses were used to assess the influence of parental education and self-regulated learning strategies on students’ digital reading literacy.

Results: Enriching students’ family learning resources and strengthening their self-regulated learning abilities could have very important influences on promoting upper-elementary school students' digital reading literacy -webpage information retrieval, reading and communication abilities.

Conclusions: This study also provides information on how teachers can address student resources to improve digital reading literacy and self-regulated strategies.  相似文献   

Novel high torque bearingless two-sided rotary ultrasonic motor   总被引：3，自引：0，他引：3  

LI Xia CHEN Wei-shan XIE Tao LIU Jun-kao 《浙江大学学报(A卷英文版)》2007,8(5):786-792

Applications are limited at present because the currently available ultrasonic motors (USMs) do not provide suffi-ciently high torque and power. The conventional travelling-wave USM needs the bearing to support, which required lubricant. To solve the above problem, a bearingless travelling-wave USM is designed. First, a novel structure of the two-sided USM consisting of a two-sided teeth stator and two disk-type rotors is designed. And the excitation principle of the two-sided travelling-wave USM is analyzed. Then, using ANSYS software, we set up the model of the stator to predict the excitation frequency and modal response of the stator. The shape of the vibration mode was obtained. Last, the load characteristics of the USM are measured using ex-perimental method. The maximum stall torque and the no-load speed were obtained. The results showed that the characteristics of the two-sided USM are better than those of the conventional one-sided USM.  相似文献   

海南岛东部滨海砂矿废弃地植被恢复效应的比较研究     

高静刘强  王敏英 《海南师范学院学报》2007,20(2):161-166

海南岛东部海岸钛锆砂矿废弃地采用木麻黄进行植被恢复,通过对有残余西瓜藤蔓和稀土肥料处理的木麻黄林地（处理林地）与没有任何处理的木麻黄林地（对照林地）进行比较研究.结果显示：1）处理林地林木的树高、基径、胸径均显著大于对照林地;2）处理林地植物-土壤系统中各分室的养分元素N、P、K含量均大于对照林地对应值;3）两个林地中养分元素的分布格局均为：叶〉粗枝〉根〉土;4）两个林地植物-土壤系统各分室的养分元素有着相似的季节变化.处理林地的植被恢复优于对照林地.  相似文献   

三要素法的适用对象   总被引：1，自引：0，他引：1  

朱素平  张静 《襄樊学院学报》2003,24(5):16-18

指出三要素适用对象是电容电压或电感电流，而一些献对此有所误解。  相似文献   

集值映象与随机集值映象的几个不动点定理     

陈宁 《绵阳师范学院学报》1994,(Z1)

在本文中我们得到了关于集值映象与随机集值映象的几个新的不动点定理,扩充了[3]中结果,主要结果是定理1—3与定理6—7  相似文献   

第二类Fredholm积分方程的快速数值解法   总被引：1，自引：0，他引：1  

吴静 《广东轻工职业技术学院学报》2004,3(1):1-5

对于具有弱奇性核函数的第二类Fredholm积分方程，将核函数所定义的区域分成大小不同的正方形子区域，利用分层插值多项式逼近核函数，由此得到近似矩阵B实现了积分方程的快速数值解法。在最后，对如何提高方案的数值稳定性作简要讨论并给出要讨论并给出数值结果。  相似文献   

浅议高校共青团学生干部队伍建设   总被引：1，自引：0，他引：1  

黄朝晖  陈林 《湖北成人教育学院学报》2004,10(6):15-16

本文论述了高等学校共青团学生干部队伍的重要性，并对如何进行高校共青团干部队伍建设进行了有益的探讨。  相似文献   

基于等级反应模型的CAT系统的研究和开发     

周婕  陈平  丁树良 《考试研究》2005,(3)

计算机化自适应测验是现代测验研究中的一个重要领域,而目前大多研究都基于0-1评分模型,适用范围不广。本文对Samejima等级反应模型进行探讨和研究,运用DELPHI开发研制多级评分计算机化自适应测验。  相似文献   

构建社会主义和谐社会研究中的几个哲学问题   总被引：2，自引：0，他引：2  

杨瑞森  冯静 《思想理论教育导刊》2006,2(10):9-18

构建社会主义和谐社会是当前我国理论界关注和研究的主要课题。关于这一问题的研究已取得很大成绩,但也有某些理论问题尚待深入研究,如构建社会主义和谐社会同继承和发扬中国传统哲学的关系问题,构建社会主义和谐社会同坚持辩证唯物主义和历史唯物主义的关系问题、建设和谐世界同坚持唯物史观的关系问题等。  相似文献   

快速、准确的图像阈值分割新方法     

张璟  郭春秋  聂雪  李维敏 《西安文理学院学报》2006,9(3):54-58

图像分割是数字图像处理系统中基本而关键的技术.通过阈值分割是其最简单的技术,它假设目标和背景是可以分离的.详细讨论将自适应遗传算法与OTSU算法相结合应用于最佳阈值的确定中,提出了相应的算法并用于图像分割,由于自适应遗传算法具有全局搜索最优解能力,因此能在很短时间内自动确定阈值.实验仿真结果表明,该方法不仅可以实现准确的图像分割,并且使得分割速度大大提高.  相似文献