Executive functioning and word reading in Hong Kong Chinese children: A 1-year longitudinal perspective

This study examined the bidirectionality between kindergarten children's executive functioning (EF) and word reading across two time points. Participants were 523 Hong Kong Chinese-speaking children (mean age at Time 2 = 64.59 months; 52.9% male) and their parents. At Time 1, children were administered the measures of EF skills: inhibitory control, attention shifting, working memory and Chinese word reading. They were reassessed with these measures at Time 2 one year later. Results from the cross-lagged panel model revealed that, controlling for child age, gender and parental education levels, children's word reading at Time 1 was significantly predictive of their working memory at Time 2, but that the three EF skills at Time 1 were not predictive of word reading at Time 2. These findings underscored the role of early word reading in promoting children's working memory.     

The role of SES in Chinese (L1) and English (L2) word reading in Chinese‐speaking kindergarteners

The present study investigated the relationships between socioeconomic status (SES) and word reading in both Chinese (L1) and English (L2), with children's cognitive/linguistic skills considered as mediators and/or moderators. One hundred ninety‐nine Chinese kindergarteners in Hong Kong with diverse SES backgrounds participated in this study. SES explained unique variance in English word reading even after age, phonological processing, vocabulary and working memory were controlled. However, the effect of SES on Chinese word reading became nonsignificant when these control variables were included. Moreover, phonological awareness showed a full mediating effect on the relationship between SES and Chinese word reading. Both phonological awareness and vocabulary were found to partially mediate the association between SES and English word reading. These findings complement our understanding of the relation between SES and reading development in Chinese societies and may have policy or intervention development implications.     

课程改革中教师专业身份的危机与重构

课程改革中,教师的专业身份往往面临挑战,它也是教师面对压力的一个重要原因。本文提出关注教师在课程改革中专业身份的重新建构,并以质的研究方法,指出教师寻求专业身份的过程充满了挣扎与无力感,因此要给教师以适切的支持与尊重,使他们获得专业身份的赋权,从而实现真正意义上的教师专业发展。     

XMage: An image retrieval method based on partial similarity

XMage is introduced in this paper as a method for partial similarity searching in image databases. Region-based image retrieval is a method of retrieving partially similar images. It has been proposed as a way to accurately process queries in an image database. In region-based image retrieval, region matching is indispensable for computing the partial similarity between two images because the query processing is based upon regions instead of the entire image. A naive method of region matching is a sequential comparison between regions, which causes severe overhead and deteriorates the performance of query processing. In this paper, a new image contents representation, called Condensed eXtended Histogram (CXHistogram), is presented in conjunction with a well-defined distance function CXSim() on the CX-Histogram. The CXSim() is a new image-to-image similarity measure to compute the partial similarity between two images. It achieves the effect of comparing regions of two images by simply comparing the two images. The CXSim() reduces query space by pruning irrelevant images, and it is used as a filtering function before sequential scanning. Extensive experiments were performed on real image data to evaluate XMage. It provides a significant pruning of irrelevant images with no false dismissals. As a consequence, it achieves up to 5.9-fold speed-up in search over the R*-tree search followed by sequential scanning.     

LONG-TERM INHIBITION OF Na~ /H~ EXCHANGE ATTENUATES CARDIAC REMODELING AFTER MYOCARDIAL INFARCTION IN RATS

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Developing an interactive augmented reality system as a complement to plant education and comparing its effectiveness with video learning

The learning of plants has garnered considerable attention in recent years, but students often lack the motivation to learn about the process of plant growth. Also, students are not able to apply what they have learned in class in the form of observation, since plant growth takes a long time. In this study, we use augmented reality (AR) technology to develop the ARFlora system, which can assist students in observing the changes in plant growth while in the classroom. More specifically, students are able to use AR markers to manipulate various virtual objects (e.g. sunlight) and observe the changes they have on plant growth. Meanwhile, a quasi-experimental evaluation is in place to substantiate the effectiveness of ARFlora in the learning of plants and to compare it with digital video learning. In the quasi-experimental design, 55 elementary-school students participated in the study. The participants are divided into two groups, an “experimental group” and a “control group.” The experimental group was taught using the ARFlora system, while the control group was taught by employing the digital video. Results show that (1) ARFlora and digital video have the same effectiveness on student's learning outcomes; (2) ARFlora is more effective in helping students retain learned knowledge; and (3) ARFlora is comparatively more useful in motivating students to learn about plants.     

Differential contribution of psycholinguistic and cognitive skills to written composition in Chinese as a second language

Reading and Writing - This study examined the contribution of the constructs of orthographic processing (orthographic choice and orthographic choice in context), syntactic processing...     

Teachers’ cultural differences: case studies of geography teachers in Brisbane,Changchun and Hong Kong

The primary purpose of this exploratory study is to identify variations in the ways in which individual teachers in different educational contexts interpret their curriculum and plan their lessons and in particular to explore the possibility that cultural differences as identified by Hofstede (1991) may be a contributing factor to understanding how teachers understand their work. “Educational reform” has become a catchphrase in the Anglo-American world, including the United States, Canada, Australia, and England and Wales, as well as in the Confucian Heritage Areas such as Mainland China, Singapore, Hong Kong, and Taiwan. Across the world, the educational reform measures being implemented are surprisingly similar. This paper describes a study of how geography teachers in Queensland, Australia, Hong Kong, and Changchun, China, plan their lessons and curriculum. From classroom observations and interviews with the teachers involved, we confirmed marked differences in each location regarding their cultural traits of power distance, individualist and collectivist preference and uncertainty tolerance, and that these traits appear to be highly influential in their curriculum planning. Despite the small scale of this study, we contend that there are good reasons for caution before national education systems import policies and curriculum reform initiatives from other countries for unthinking adoption.