世代特征，信息环境变迁与大学生信息素养教育创新     

周剑  王艳  Iris XIE 《中国图书馆学报》2015,41(4):25-39

当前世代大学生偏好的教育活动是个性化服务,电子媒介交互式学习,任务参与型学习甚至自主的学习;他们具备一定的信息素养能力,但差异巨大。本文指出:随着Internet技术及应用的深入发展,大学生信息素养能力包括三个层次,低层次是信息检索技能,然后是批判性思维能力和与自己专业密切相关的IT能力,更高层次是独立思考、认识论认知能力,最终达到解决实际问题的目的;高校图书馆已经不能独立满足学生多层次信息素养能力的要求及当前世代大学生对教育培训的偏好。本文提出信息素养教育五分策略:培养目标分层,教学内容分级,学科专业分类,培养过程分段,学生管理分流,并建议从网络课堂、图书馆、学院、学校、教育部、第三方平台等多个层面,共同推动我国大学生信息素养教育。图3。表3。参考文献63。  相似文献   

Exploring the Usefulness of Kelly's Personal Construct Theory in Assessing Student Learning in Science Courses     

Carolin Kreber  Heather Castleden  Nina Erfani  Joan Lim  Tarah Wright 《Teaching in Higher Education》2013,18(3):431-445

We explore the utility of George Kelly's Personal Construct Theory, specifically his repertory grid technique, to the assessment of student learning in undergraduate science courses. We provide an in-depth review of the assumptions underlying Personal Construct Theory and how these were reflected in the repertory grid technique Kelly developed. We explain how an adapted version of the repertory grid, sharing some yet not all of Kelly's assumptions, was utilised as a research tool in a recent study involving science instructors and their students. We argue that as well as having applicability as an innovative research tool, an adapted version of Kelly's repertory grid is a useful heuristic for university teachers when used as a classroom assessment technique (CAT) and indicate several features it shares with the more widely-known conceptual mapping technique, which has been used in the study of science teaching and learning for many years. We conclude by highlighting several advantages the use of repertory grids has for both students and instructors.  相似文献   

Making learning visible in initial teacher education: a pedagogical characterisation scheme     

Peter G. Taylor  Ee Ling Low  Kam Ming Lim  Chenri Hui 《Educational Research for Policy and Practice》2013,12(3):193-209

This paper reports the development of a scheme of characterising pedagogical practices in initial teacher education classes. The scheme is intended to provide baseline data on classroom pedagogical practices in Singapore’s sole provider of initial teacher education (ITE). This study is original in that the research team has found no reports of independent research to characterise, through video analysis of classroom practices, the pedagogical practices experienced during ITE. By characterising the pedagogical practices of a purposive sample of ITE lessons run at the National Institute of Education Singapore, this study contributes an initial scheme to produce detailed and layered representations of pedagogical practices through video recordings, which opens a new approach to research on teacher education. The implications with regard to teacher education policy and practice will be discussed.  相似文献   

Formation control and collision avoidance for a class of multi-agent systems     

Yutong Liu  Hongjun Yu  Peng Shi  Cheng-Chew Lim 《Journal of The Franklin Institute》2019,356(10):5395-5420

In this paper, a control scheme is proposed for a group of elliptical agents to achieve a predefined formation. The agents are assumed to have the same dynamics, and communication among the agents are limited. The desired formation is realized based on the reference formation and the mapping decision. In the control design, searching algorithms for both cases of minimum distance and tangents are established for each agent and its neighbors. In order to avoid collision, an optimal path planning algorithm based on collision angles, and a self-center-based rotation algorithm are also proposed. Moreover, randomized method is used to provide the optimal mapping decision for the underlying system. Two examples and analyses are presented to demonstrate the effectiveness and potential of the new control scheme.  相似文献   

ATP translocation and chloroplast biology     

Chia P Voon  Boon L Lim 《国家科学评论(英文版)》2019,6(6):1073

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Impact of combining data from multiple instruments on performance of patient-based real-time quality control     

Qianqian Zhou  Tze Ping Loh  Tony Badrick  Chun Yee Lim 《Biochemia medica : ?asopis Hrvatskoga dru?tva medicinskih biokemi?ara / HDMB》2021,31(2)

IntroductionIt is unclear what is the best strategy for applying patient-based real-time quality control (PBRTQC) algorithm in the presence of multiple instruments. This simulation study compared the error detection capability of applying PBRTQC algorithms for instruments individually and in combination using serum sodium as an example.Materials and methodsFour sets of random serum sodium measurements were generated with differing means and standard deviations to represent four simulated instruments. Moving median with winsorization was selected as the PBRTQC algorithm. The PBRTQC parameters (block size and control limits) were optimized and applied to the four simulated laboratory data sets individually and in combination.ResultsWhen the PBRTQC algorithm were individually optimized and applied to the data of the individual simulated instruments, it was able to detect bias several folds faster than when they were combined. Similarly, the individually applied algorithms had perfect error detection rates across different magnitudes of bias, whereas the error detection rates of the algorithm applied on the combined data missed smaller biases. The performance of the individually applied PBRTQC algorithm performed more consistently among the simulated instruments compared to when the data were combined.DiscussionWhile combining data from different instruments can increase the data stream and hence, increase the speed of error detection, it may widen the control limits and compromising the probability of error detection. The presence of multiple instruments in the data stream may dilute the effect of the error when it only affects a selected instrument.  相似文献   

Systematic Comparison of Decision Accuracy of Complex Compensatory Decision Rules Combining Multiple Tests in a Higher Education Context          下载免费PDF全文

Iris E. Yocarini  Samantha Bouwmeester  Guus Smeets  Lidia R. Arends 《Educational Measurement》2018,37(3):24-39

This real‐data‐guided simulation study systematically evaluated the decision accuracy of complex decision rules combining multiple tests within different realistic curricula. Specifically, complex decision rules combining conjunctive aspects and compensatory aspects were evaluated. A conjunctive aspect requires a minimum level of performance, whereas a compensatory aspect requires an average level of performance. Simulations were performed to obtain students' true and observed score distributions and to manipulate several factors relevant to a higher education curriculum in practice. The results showed that the decision accuracy depends on the conjunctive (required minimum grade) and compensatory (required grade point average) aspects and their combination. Overall, within a complex compensatory decision rule the false negative rate is lower and the false positive rate higher compared to a conjunctive decision rule. For a conjunctive decision rule the reverse is true. Which rule is more accurate also depends on the average test reliability, average test correlation, and the number of reexaminations. This comparison highlights the importance of evaluating decision accuracy in high‐stake decisions, considering both the specific rule as well as the selected measures.  相似文献   

Transnational Media Management: Western News Organizations’ Web Operations in China     

Hsiang Iris Chyi  James Ian Tennant 《媒体管理杂志》2017,19(4):261-281

In 2008, China surpassed the United States as the largest Internet market in the world. This study examines how four prominent Western news organizations respond to this new era of Internet publishing. A series of in-depth interviews with senior managers at The Wall Street Journal, Financial Times, Reuters, and The New York Times revealed how these news organizations serve Internet users in China through their Chinese-language Web editions—how they overcome geographic, language, cultural, and political barriers to explore this remote market. These cases demonstrate the viability of different operating models and the challenges and opportunities facing these media organizations as they manage transnational news operations in this seemingly lucrative market.  相似文献   

Jon Lauglo, Peter Lang, Frankfurt, Se-Yung Lim, Klaus Schaack (Eds.), Education, Training and Contexts Studies and Essays, ISBN 3-631-39547-7, US edn 0-8204-5981-X, 2002 (433pp.)..     

Jon Lauglo  Peter Lang  Frankfurt  Se-Yung Lim  Klaus Schaack  Education  Training  Contexts Studies  Essays  ISBN ---  US edn ---X  . 《International Journal of Educational Development》2005,25(6):669-670

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提心吊胆的华尔街     

Paul  J.Lim  周仲林 《海外英语》2004,(8):14-15

The war in Iraq, terrorism, rising oil prices-and now the threat of higher interest rates-are all preying on the market. There comes a point in virtually every bull market when  相似文献