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Learning to read in a shallow alphabetic orthography such as Urdu may depend primarily on phonological processing skills, whilst learning to read in a deeper orthography, such as English, may place more reliance on visual processing skills. This study explores the effects of Urdu on the acquisition of English literacy skills by comparing the reading, memory and phonological processing skills of bilingual Urdu‐English and monolingual English children (7–8 years). The bilingual children had more difficulty in reading irregular English words, but were better at reading regular words and nonwords compared to the monolinguals. The poor performance of the bilingual children with irregular English words was linked to their poor visual memory skills, whilst their good performance with regular words and nonwords was related to the presence of enhanced phonological skills. The results demonstrate the transfer of first language skills to reading development in a second language. In English, first language skills can facilitate the development of either lexical or non‐lexical routes to reading. 相似文献
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Optimization study of a PEM fuel cell performance using 3D multi-phase computational fluid dynamics model 总被引：1，自引：0，他引：1
AL-BAGHDADI Maher A.R. Sadiq AL-JANABI Haroun A.K. Shahad 《浙江大学学报(A卷英文版)》2007,8(2):285-300
INTRODUCTION Water management is one of the critical opera-tion issues in proton exchange membrane (PEM) fuelcells. Spatially varying concentrations of water inboth vapour and liquid form are expected throughoutthe cell because of varying rates of production andtransport (Sui and Djilali, 2005). Devising betterwater management is therefore a key issue in PEMFCdesign, and this requires improved understanding ofthe parameters affecting water transport in the mem-brane. Proper thermal m… 相似文献
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The purpose of this study was to examine the effects of Urdu, a phonologically transparent orthography with regular letter-sound correspondences on the development of reading in English. The results showed that children who had high levels of vocabulary knowledge and phonological awareness in Urdu, were more likely to perform well on English reading and reading related tasks, but poorly on visual memory tasks. In contrast, children who had some Urdu word recognition skills, but low levels of Urdu vocabulary knowledge and Urdu phonological awareness tended to perform poorly on English reading and reading related tasks, but better on visual memory tasks. The findings provide further support to the direct impact of Urdu on single word reading in English. 相似文献
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Shazia K. Jan 《The American journal of distance education》2013,27(1):30-40
This study investigated the relationships between academic self-efficacy (ASE), computer self-efficacy (CSE), prior experience, and satisfaction with online learning and explored how ASE, CSE, and satisfaction vary with age and gender. One hundred and three graduate students enrolled in purely online courses in January 2014 at a university in the midwestern United States participated in the survey. Scales with known reliability were used to measure ASE, CSE, and satisfaction. The study showed a significant positive correlation among all the variables except CSE and satisfaction. Regression analysis showed ASE to be most predictive of satisfaction with online learning. Females had a higher mean ASE than males, and participants aged thirty-five years and above had a higher mean CSE than younger participants. 相似文献
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Guo-qing He Tong-jie Liu Faizan A. Sadiq Jing-si Gu Guo-hua Zhang 《Journal of Zhejiang University. Science. B》2017,18(4):289-302
Chinese traditional fermented foods have a very long history dating back thousands of years and have become an indispensable part of Chinese dietary culture. A plethora of research has been conducted to unravel the composition and dynamics of microbial consortia associated with Chinese traditional fermented foods using culturedependent as well as culture-independent methods, like different high-throughput sequencing (HTS) techniques. These HTS techniques enable us to understand the relationship between a food product and its microbes to a greater extent than ever before. Considering the importance of Chinese traditional fermented products, the objective of this paper is to review the diversity and dynamics of microbiota in Chinese traditional fermented foods revealed by HTS approaches. 相似文献
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Lei Yuan Faizan A. Sadiq Tong-jie Liu Yang Li Jing-si Gu Huan-yi Yang Guo-qing He 《Journal of Zhejiang University. Science. B》2018,19(8):630-642
The storage and transportation of raw milk at low temperatures promote the growth of psychrotrophic bacteria and the production of thermo-stable enzymes, which pose great threats to the quality and shelf-life of dairy products. Though many studies have been carried out on the spoilage potential of psychrotrophic bacteria and the thermo-stabilities of the enzymes they produce, further detailed studies are needed to devise an effective strategy to avoid dairy spoilage. The purpose of this study was to explore the spoilage potential of psychrotrophic bacteria from Chinese raw milk samples at both room temperature (28 °C) and refrigerated temperature (7 °C). Species of Yersinia, Pseudomonas, Serratia, and Chryseobacterium showed high proteolytic activity. The highest proteolytic activity was shown by Yersinia intermedia followed by Pseudomonas fluorescens (d). Lipolytic activity was high in isolates of Acinetobacter, and the highest in Acinetobacter guillouiae. Certain isolates showed positive β-galactosidase and phospholipase activity. Strains belonging to the same species sometimes showed markedly different phenotypic characteristics. Proteases and lipases produced by psychrotrophic bacteria retained activity after heat treatment at 70, 80, or 90 °C, and proteases appeared to be more heat-stable than lipases. For these reasons, thermo-stable spoilage enzymes produced by a high number of psychrotrophic bacterial isolates from raw milk are of major concern to the dairy industry. The results of this study provide valuable data about the spoilage potential of bacterial strains in raw milk and the thermal resistance of the enzymes they produce. 相似文献
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Spyros Konstantopoulos Wei Li Shazia R. Miller Arie van der Ploeg 《The Journal of educational research》2017,110(4):319-330
The authors examined differential effects of interim assessments on minority and low socioeconomic status students' achievement in Grades K–6. They conducted a large-scale cluster randomized experiment in 2009–2010 to evaluate the impact of Indiana's policy initiative introducing interim assessments statewide. The authors used 2-level models to analyze the single-grade data and determine whether interim assessments interacted with student ethnicity, socioeconomic status, gender, or school composition (i.e., percent of minority or disadvantaged students). The authors also combined estimates across grades using fixed effects meta-analysis. Results indicated little evidence about differential effects. The majority of interaction estimates were insignificant and close to zero. There is some indication that in Grades K–2 Indiana's interim assessment may have closed the Hispanic–White gap in reading. In kindergarten and Grade 3 the treatment may have widened the gap between schools with higher and lower percentages of minority students and may have reduced the gap between schools with higher and lower percentages of economically disadvantaged students in mathematics. 相似文献
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This study investigated ESL teachers’ perceptions regarding the use of Computer Assisted Language Learning (CALL) in teaching reading to children. A random sample of 145 teachers participated in the study by completing a survey developed by the researchers. To explore the situation in depth, 16 teachers were later interviewed. Results indicated that the main purpose of using CALL with children is to help them develop reading strategies and increase their motivation. The most common strategies teachers reported using were computers to: enhance children's reading skills, support children's reading, listen to stories read aloud, recognize letter/sound relationships, and identify letters and beginning sounds of words. Teachers reported that CALL has some benefits, such as providing opportunities for active interaction and differentiated instruction. The main barriers of using CALL are the lack of resources and suitable software and hardware. The study ended with recommendations for further research and instructional improvements. 相似文献