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81.
Developmental Changes in Executive Functioning 总被引:1,自引:0,他引:1
Although early studies of executive functioning in children supported Miyake et al.'s (2000) three‐factor model, more recent findings supported a variety of undifferentiated or two‐factor structures. Using a cohort‐sequential design, this study examined whether there were age‐related differences in the structure of executive functioning among 6‐ to 15‐year‐olds (N = 688). Children were tested annually on tasks designed to measure updating and working memory, inhibition, and switch efficiency. There was substantial task‐based variation in developmental patterns on the various tasks. Confirmatory factor analyses and tests for longitudinal factorial invariance showed that data from the 5‐ to 13‐year‐olds conformed to a two‐factor structure. For the 15‐year‐olds, a well‐separated three‐factor structure was found. 相似文献
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The variation theory of Ference Marton and his collaborators has widely been used as a framework for explaining what can possibly be learned in a particular classroom and what cannot. This paper reports on an experiment that put this theory to test in the context of students’ learning of the orthographic structures of Chinese characters. The experiment was carried out in the classrooms of two primary schools in Hong Kong. In each of the schools, two classes of students were taught differently, as informed by the theory, about the significance of the location of a component in the orthographic structure of a character in relation to whether the component provided a clue to the meaning of the character (called the part–part relations). The results of the experiment are consistent with the prediction of the theory that those students who were given the possibility to experience variation in the locations of components in the orthographic structures significantly outperformed those who were not. The results of the experiment demonstrate the power of the theory in guiding the design of teaching that affords students’ learning to happen. 相似文献
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Ho Ming Ng 《教育政策杂志》2013,28(6):657-672
Education in Hong Kong has developed rapidly since the 70s in parallel with the economic boom. To support such development, the government has invested heavily in initial teacher education and will soon impose professional training and graduate qualifications as prerequisites for entering the profession. Continuous teacher education (CTE), generally regarded as equally important as initial teacher education if not more so, is not given comparable emphasis. This paper aims to study CTE in Hong Kong, including its policy, practice and provision at the system level. Some special features of the system are identified and scrutinized, including ad hoc, policy led, and competence based. The centrally provided CTE is also closely examined in terms of its relevance to the profession, impact on schools, and cost‐effectiveness. The paper ends with a close look at its latest developments, obstacles encountered and prospects. 相似文献
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Chia-Ling Lynn Ho Chad Whittle Michael H. Eaves 《Journal of Intercultural Communication Research》2020,49(4):301-312
ABSTRACT Extending the existing low- and high-context culture theoretical framework, the current research examined the extent to which globalization has shaped low- and high-context cultures in relation to nonverbal communication. The current study employed an exploratory sequential design mixed research method. The first phase of the study observed cultural convergence evident in people’s nonverbal communication in real life and reported the observations qualitatively. In the second phase of the study, a quantitative content analysis was carried out. The content analysis, namely sentiment analysis, examined the occurrences of people of diverse nationalities expressing their emotions when they provide reviews of airlines on a travel website and empirically test the relevance of low- and high-context theoretical framework in the era of globalization. A total of 85,228 reviews of 592 airlines available on a travel website were downloaded using a web crawler. The qualified records used for analysis included records from the following regions: Africa, Asia, Australia, Latin America, Northwestern Europe, Southern Europe, and United States. An analysis of variance on the number of words people used in writing travel reviews online yielded significant variations among the seven regions. This data also sheds light on cultural convergence. 相似文献
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Junchao Wang Kaicong Liang Naiyin Zhang Hailong Yao Tsung-Yi Ho Lingling Sun 《Biomicrofluidics》2021,15(2)
With the development of 3D printing techniques, the application of it in microfluidic/Lab-on-a-Chip (LoC) fabrication is becoming more and more attractive. However, to achieve a satisfying printing quality of the target devices, researchers usually require quite an amount of work in calibration trials even for high-end 3D printers. To increase the calibration efficiency of the average priced printers and promote the application of 3D printing technology in the microfluidic community, this work has presented a computer vision (CV)-based method for rapid and precise 3D printing calibration with examples on cylindrical hole/post diameters of 0.2–2.4 mm and rectangular hole/post widths of 0.2–1.0 mm by a stereolithography-based 3D printer. Our method is fully automated, which contains five steps and only needs a camera at hand to provide photos for convolutional neural network recognition. The experimental results showed that our CV-based method could provide calibrated dimensions with just one print of the specific calibration ruler to meet user desire. The higher resolution of the photo provides a higher precision in calibration. Subsequently, only one more print for the target device is needed after the calibration process. Overall, this work has provided a quick and precise calibration tool for researchers to apply 3D printing in the fabrication of their microfluidic/LoC devices with average price printers. Besides, with our open source calibration software and calibration ruler design file, researchers can modify the specific setting based on customized needs and conduct calibration on any type of 3D printer. 相似文献
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