The effects of visual and verbal coding mnemonics on learning Chinese characters in computer-based instruction     

Mei-Liang Amy Kuo  Simon Hooper 《Educational technology research and development : ETR & D》2004,52(3):23-34

The effects of different approaches to learning Chinese characters were investigated. Ninety-two high-school students were randomly assigned to one of five treatment groups: translation, verbal mnemonics, visual mnemonics, dual coding mnemonics, or self-generated mnemonics. All groups received instruction and completed posttests in a computer-based environment. The results indicate that participants who generated their own mnemonics demonstrated higher posttest performance than those in visual coding, verbal coding, and translation groups; subjects in the dual coding group scored higher than those in the translation group. Those who generated their own mnemonics spent more time on task than any other group, and those in the verbal coding group took more time than those in the translation group. Survey and qualitative data suggest that learners' interpretations of the Chinese characters were rooted in their cultural backgrounds and personal experiences.  相似文献   

Effect of Marangoni Convection on Mass Transfer in Liquid Phase     

余黎明  曾爱武  余国琮 《天津大学学报(英文版)》2006,12(6):391-398

Marangoni effectis of interestto the chemical en-gineers from both scientific and practical points ofview[1—6]. The Marangoni convection contributes tothe renewal of the interfacial surface and is capable ofincreasing the mass transfer rate, resulting in intensi-fication of separation processes such as distillation,extraction, absorption, and desorption. The theoretical studies of Marangoni instability inthe past were focused on determining the critical tran-sition point. The critical condit…  相似文献   

乾隆时期的小溪沟与碧峰门     

关阔 《承德师专学报》2003,23(3):99-100

乾隆时期承德植被极好,参天蔽日的树环绕避暑山庄。夕阳西下,老槐古柳极富诗意。小溪沟、碧峰路是天然通风道使城市十分凉爽。现在山庄旁边高楼林立是所不宜。  相似文献   

以CEFR为基础之华语文初级能力测验研发与应用     

王暄博  蔡雅熏  郭伯臣  赵日彰 《暨南大学华文学院学报》2012,(1):32-41

近年来,随着华语文学习需求的日益升高,使得以“母语为非华语者”的华语文能力测验也逐渐受到各国瞩目,然而,这些华语文能力测验仍有一些限制与不足之处。本研究目的是以欧洲语言共同参考架构（The Common European Framework of Reference,CEFR）为基础,参考蔡雅熏（2009）编制的《华语文能力指标》,研发A2级的华语文听力与阅读测验,并导人现代测验理论（item response theory,IRT）之技术,建立一套具有信度、效度的华语文能力计算机化测验。最后,本文透过次级量尺分数估计方法,探讨受试者在CEFR中四种语言能力之表现,研究显示受试者表达与理解能力优于互动与转述能力。  相似文献   

Children's use of analogy during collaborative reasoning     

Lin TJ  Anderson RC  Hummel JE  Jadallah M  Miller BW  Nguyen-Jahiel K  Morris JA  Kuo LJ  Kim IH  Wu X  Dong T 《Child development》2012,83(4):1429-1443

This microgenetic study examined social influences on children's development of analogical reasoning during peer-led small-group discussions of stories about controversial issues. A total of 277 analogies were identified among 7,215 child turns for speaking during 54 discussions from 18 discussion groups in 6 fourth-grade classrooms (N = 120; age M=10.0, SD=0.6). Use of analogy was found to spread among the children in discussion groups and occur at an accelerating rate, primarily because of the increasing use of novel analogies. Relational analogies with shared surface features triggered purely relational analogies during the next 2 speaking turns, showing a trend of relational shift. These results provide distinctive new evidence for the importance of social interaction in an aspect of cognitive development.  相似文献   

网络教学中学习者行为研究     

胡亮  匡哲君  努尔布力  解男男  赵阔 《高等理科教育》2012,(6):54-58

网络教学摆脱了传统教学时间和地域因素的限制,但是现有的网络教学只是简单地将学习内容进行堆积和罗列,不同学习背景的学习者难以分辨哪一部分是适合自己的学习内容,严重影响了网络教学的效果。本文通过对学习者学习行为的判断,为学习者推荐合适的学习序列,从而达到针对不同学习者的行为,为学习者设计不同学习策略的目的。  相似文献   

商务网络信息生态链结构模型构建     

许孝君  张海涛  瓮毓琦  刘阔 《图书情报工作》2013,57(15):50-55

以生态学及信息生态链理论为研究基础,对商务网络信息生态链的含义及特征进行分析,深入探讨商务网络信息生态链的组成部分,明确阐述商务网络信息生态链的三大结构要素——"节点"、"节点关系"及"链接模式";在此基础上,借鉴"价值链"、"供应链"及"复杂系统论"等相关理论研究方法,从信息、信息主体、信息环境及信息技术4个因素出发,构建商务网络信息生态链的结构模型。  相似文献   

User acceptance of mobile e-government services: An empirical study     

Shin-Yuan Hung  Chia-Ming Chang  Shao-Rong Kuo 《Government Information Quarterly》2013

The traditional focus of e-government services research has been on non-mobile services but now with the incorporation of mobile services more people are able to access these Mobile e-government services (m-government services). In addition, such services are critical for improving user-to-government communication effectiveness and maintaining relationships. The purpose of this study is to identify the factors that determine user acceptance of these services. Based primarily on the theory of planned behavior and supplemented by the mobile communication perspective, a sample of 331 users of m-government services in Taiwan was tested. The findings show that perceived usefulness, perceived ease of use, trust, interactivity, external influence, interpersonal influence, self efficacy, and facilitating conditions are critical factors. This study has given us a better understanding of critical mobile communication factors in improving user acceptance of m-government services. Implications and recommendations for research and practice are also presented and discussed.  相似文献   

Fractionated evaluation of immunohistochemical hormone receptor expression enhances prognostic prediction in breast cancer patients treated with tamoxifen as adjuvant therapy     

Ching-hung LIN  Huang-chun LIEN  Yen-shen LU  Sung-hsin KUO  Ann-lii CHENG  King-jen CHANG  Chiun-sheng HUANG 《Journal of Zhejiang University. Science. B》2010,11(1):1-9

Objective:To compare the prognostic prediction between dichotomized and fractionated evaluations of hormone receptor expressions. Methods: Patients with stages I-III breast cancers, who received adjuvant tamoxifen, were enrolled. The expression of estrogen receptor (ER) and progesterone receptor (PR) was evaluated by immu-nohistochemistry (IHC). A fractionated score (F score), the percentage of positive-staining nuclei (0=none, 1=1%-10%, 2=11%-30%, 3=31%-50%, 4=51%-70%, and 5=71%-100%), was assigned to each...  相似文献   

基于交易费用视角的生猪供应链上游结构变化趋势研究     

胡凯  高阔 《九江师专学报》2007,26(6):77-81

生猪供应链上游有两种结构：猪贩作为中间商模式和直接交易模式。论文分别从交易三维度视角和模型化交易费用的视角，对两种结构中的交易费用进行了比较。结果表明，随着饲养规模的扩大，生猪供应链上游的结构方式将向直接交易模式转变。  相似文献