The Democratization of Mass Political Orientations in South Korea: Ascertaining the Cultural Dimension of Democratic Consolidation     

Shin  Doh Chull; Park  Chong-Min; Hwang  Ah-Ran; Lee  Hyeon-Woo; Jang  Jiho 《Int. Journal of Public Opinion Research》2003,15(3):265-284

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A long-term experiment to investigate the relationships between high school students’ perceptions of mobile learning and peer interaction and higher-order thinking tendencies     

Gwo-Jen Hwang  Chiu-Lin Lai  Jyh-Chong Liang  Hui-Chun Chu  Chin-Chung Tsai 《Educational technology research and development : ETR & D》2018,66(1):75-93

In this study, a one-year program was conducted to investigate the relationships between students’ perceptions of mobile learning and their tendencies of peer interaction and higher-order thinking in issue-based mobile learning activities. To achieve the research objective, a survey consisting of eight scales, namely, usability, continuity, adaptive content, collaboration, communication, problem-solving, critical thinking and creativity, was developed. A total of 658 students from 38 high schools in Taiwan filled in the questionnaire after experiencing issue-based mobile learning activities. From the exploratory and confirmatory factor analyses, it was found that the questionnaire had high reliability and validity. The structural equation model further revealed that the provision of adaptive content in the mobile learning had positive impacts on the students’ tendency to interact with peers (i.e., collaboration and communication), which further affected their tendency to engage in higher-order thinking (i.e., problem-solving, critical thinking, and creativity). The findings of this study provide a good reference for researchers and school teachers who intend to promote mobile learning in school settings.  相似文献   

A quasi-experimental research on the educational value of performance assessment     

Sun-Geun Back  Eun-Hui Hwang 《Asia Pacific Education Review》2005,6(2):179-190

The purpose of this study is to demonstrate that performance assessment increases educational value in teachinglearning activities using a quasi-experimental research design. In this research, the three measurement criteria of educational value are suggested as ‘improvement & advancement,’ ‘sincerity & enthusiasm,’ and ‘individuality & wholeness.’ A pre-test was administered to 4 classes (156 students) in 7th grade. Classes were divided into an experimental group (2 classes, 79 students) and a control group (2 classes, 77 students), according to the pre-test results. Only the experimental group was involved in the performance assessment for 9 weeks. The results of this study show that performance assessment has a positive effect on the educational value of teaching-learning activities in schools.  相似文献   

Education and theory returning to life itself     

Keumjoong Hwang 《Educational Philosophy and Theory》2018,50(14):1328-1329

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Internet‐based Science Learning: A review of journal publications     

Silvia Wen‐Yu Lee  Ying‐Tien Wu  Meng‐Jung Tsai  Tzu‐Chien Liu  Fu‐Kwun Hwang 《International Journal of Science Education》2013,35(14):1893-1925

Internet‐based science learning has been advocated by many science educators for more than a decade. This review examines relevant research on this topic. Sixty‐five papers are included in the review. The review consists of the following two major categories: (1) the role of demographics and learners' characteristics in Internet‐based science learning, such as demographic background, prior knowledge, and self‐efficacy; and (2) the learning outcomes derived from Internet‐based science learning, such as attitude, motivation, conceptual understanding, and conceptual change. Some important conclusions are drawn from the review. For example, Internet‐based science learning is equally favorable, or in some cases more so, to learning for female students compared to male students. The learner's control is essential for enhancing students' attitudes and motivation toward learning in Internet‐based science learning environments. Nevertheless, appropriate guidance from teachers, moderators, or the Internet‐based learning environment itself is still quite crucial in Internet‐based science learning. Recommendations for future research related to the effects of Internet‐based science learning on students' metacognitive reflections, epistemological development, and worldviews are suggested.  相似文献   

Correction to: “Narrative Inquiry for Science Education: Teachers’ repertoire-making in the case of environmental curriculum”     

Seyoung Hwang 《International Journal of Science Education》2013,35(7)

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Examining the Causal Relationships Among Selected Antecedents of Responsible Environmental Behavior     

Yeong-Hyeon Hwang  Seong-Il Kim  Jiann-Min Jeng 《The Journal of environmental education》2013,44(4):19-25

Abstract

Attitude models have been widely applied to natural resource management to ensure responsible environmental behavior. For a variety of applications, the causality among selected antecedents, such as knowledge of environmental issues, locus of control, attitude, personal responsibility, and intention to act on responsible environmental behavior has not yet been tested empirically. A hypothesized causal model based on Hine's (1986) model on responsible environmental behavior was developed. The data from 523 visitors to the urban forest trail in the Kwang-Reung Arboretum, Korea, during September 1995 were used for testing the suggested causal model. Path analysis using the LISREL program tested the model fit and statistical effects of variables. In terms of the effects on intention to act, locus of control and attitude are more important than knowledge and personal responsibility. Our findings suggest that in order to enhance responsible environmental behavior, environmental education and interpretation systems need to focus on changing the internal locus of control. Several recommendations, limitations, and directions for future research are discussed.  相似文献   

Structural design of a double-layered porous hydrogel for effective mass transport     

Hyejeong Kim  Hyeon Jeong Kim  Hyung Kyu Huh  Hyung Ju Hwang  Sang Joon Lee 《Biomicrofluidics》2015,9(2)

Mass transport in porous materials is universal in nature, and its worth attracts great attention in many engineering applications. Plant leaves, which work as natural hydraulic pumps for water uptake, have evolved to have the morphological structure for fast water transport to compensate large water loss by leaf transpiration. In this study, we tried to deduce the advantageous structural features of plant leaves for practical applications. Inspired by the tissue organization of the hydraulic pathways in plant leaves, analogous double-layered porous models were fabricated using agarose hydrogel. Solute transport through the hydrogel models with different thickness ratios of the two layers was experimentally observed. In addition, numerical simulation and theoretical analysis were carried out with varying porosity and thickness ratio to investigate the effect of structural factors on mass transport ability. A simple parametric study was also conducted to examine unveiled relations between structural factors. As a result, the porosity and thickness ratio of the two layers are found to govern the mass transport ability in double-layered porous materials. The hydrogel models with widely dispersed pores at a fixed porosity, i.e., close to a homogeneously porous structure, are mostly turned out to exhibit fast mass transport. The present results would provide a new framework for fundamental design of various porous structures for effective mass transport.  相似文献   

Core-shell hydrogel beads with extracellular matrix for tumor spheroid formation     

L. Yu  S. M. Grist  S. S. Nasseri  E. Cheng  Y.-C. E. Hwang  C. Ni  K. C. Cheung 《Biomicrofluidics》2015,9(2)

Creating multicellular tumor spheroids is critical for characterizing anticancer treatments since they may provide a better model of the tumor than conventional monolayer culture. Moreover, tumor cell interaction with the extracellular matrix can determine cell organization and behavior. In this work, a microfluidic system was used to form cell-laden core-shell beads which incorporate elements of the extracellular matrix and support the formation of multicellular spheroids. The bead core (comprising a mixture of alginate, collagen, and reconstituted basement membrane, with gelation by temperature control) and shell (comprising alginate hydrogel, with gelation by ionic crosslinking) were simultaneously formed through flow focusing using a cooled flow path into the microfluidic chip. During droplet gelation, the alginate acts as a fast-gelling shell which aids in preventing droplet coalescence and in maintaining spherical droplet geometry during the slower gelation of the collagen and reconstituted basement membrane components as the beads warm up. After droplet gelation, the encapsulated MCF-7 cells proliferated to form uniform spheroids when the beads contained all three components: alginate, collagen, and reconstituted basement membrane. The dose-dependent response of the MCF-7 cell tumor spheroids to two anticancer drugs, docetaxel and tamoxifen, was compared to conventional monolayer culture.  相似文献   

Child and Adolescent Predictors of Personality in Early Adulthood          下载免费PDF全文

Maria Wängqvist  Michael E. Lamb  Ann Frisén  C. Philip Hwang 《Child development》2015,86(4):1253-1261

This study investigated development of the Big Five personality traits from early childhood into adulthood. An initial group of 137 Swedish children were assessed eight times between ages 2 and 29 years. Initial decreases in extraversion leveled off in early adulthood; agreeableness and conscientiousness increased from ages 2 to 29; neuroticism initially increased, leveled off in later childhood and adolescence, and decreased throughout early adulthood; while openness to experience showed an initial increase, then decreased and leveled off in early adulthood. Individual developmental trajectories varied significantly, particularly in relation to gender. Personality traits became increasingly stable, and the fact that childhood scores predicted scores in adulthood indicated that personalities are fairly stable across this portion of the life span.  相似文献