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Jemin Kim Margaret A. Wilson Kunal Singhal Sarah Gamblin Cha-Young Suh 《Sports biomechanics / International Society of Biomechanics in Sports》2014,13(3):215-229
The purpose of this study was to investigate the vertical angular momentum generation strategies used by skilled ballet dancers in pirouette en dehors. Select kinematic parameters of the pirouette preparation (stance depth, vertical center-of-mass motion range, initial shoulder line position, shoulder line angular displacement, and maximum trunk twist angle) along with vertical angular momentum parameters during the turn (maximum momentums of the whole body and body parts, and duration and rate of generation) were obtained from nine skilled collegiate ballet dancers through a three-dimensional motion analysis and compared among three turn conditions (single, double, and triple). A one-way (‘turn’) multivariate analysis of variance of the kinematic parameters and angular momentum parameters of the whole body and a two-way analysis of variance (‘turn’ × ‘body’) of the maximum angular momentums of the body parts were conducted. Significant ‘turn’ effects were observed in the kinematic/angular momentum parameters (both the preparation and the turn) (p < 0.05). As the number of turns increased, skilled dancers generated larger vertical angular momentums by predominantly increasing the rate of momentum generation using rotation of the upper trunk and arms. The trail (closing) arm showed the largest contribution to whole-body angular momentum followed by the lead arm. 相似文献
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Sae Yeol Yoon Jee Kyung Suh Soonhye Park 《International Journal of Science Education》2013,35(16):2666-2693
Korean students have shown relatively little interest and confidence in learning science, despite being ranked in the top percentile in international evaluations of academic achievement in science such as the Trends in International Mathematics and Science Study. Although research indicates a positive relationship between student perceptions of science and their science learning, this area has not been sufficiently explored in Korea. Particularly, even though both students' perceptions of scientific practice and their understanding of the nature of science (NOS) are influenced by their science learning experiences at schools, little research examines how this perception, understanding, and experience are related to one another. This study aimed to uncover Korean students' perceptions of school scientific practice through exploring their drawings, writings, and responses to questionnaires. Participants were 500 Korean students in 3rd, 7th, and 10th grades who were asked to complete an open-ended questionnaire. The results indicated that Korean students typically viewed school scientific practices as experimental activities or listening to lecture; and that most participants held an insufficient understanding of the NOS. Overall, no significant relationship emerged between students' perceptions of school scientific practice and their understanding of the NOS. Our findings highlight the need to help both teachers and students understand the potential breadth of school scientific practices, beyond simple ‘activity mania.’ This study also suggests that teachers must balance implicit and explicit instructional approaches to teaching about the NOS through scientific practices in school science contexts. 相似文献
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Yonjoo Cho Sunyoung Park Sung Jun Jo Susan Suh 《British journal of educational technology : journal of the Council for Educational Technology》2013,44(5):677-694
The purpose of this study was to conduct a citation network analysis of Educational Technology Research and Development (ETR&D) to examine the trends and issues of the educational technology field's scholarly community that have evolved in the past two decades. The distinctive features of citation network analysis used in this study derive from a social network analysis approach to see relational and network patterns in the citation data. From this citation network analysis, we obtained the following results: (1) the ETR&D network revealed structural attributes that help us understand the features regarding how the field has developed and how scholarly works have interacted; (2) the most influential papers and scholars in the field were identified; (3) frequently co‐cited papers were recognized as having a strong relationship by a few researchers and (4) five cohesive subgroups (factions) generated key research themes in the field including: instructional design, learning environments, the role of technology, educational technology research and psychological foundations. Implications and limitations of the study were discussed for future research. 相似文献
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Heejoo Suh 《The Educational forum》2020,84(3):200-209
AbstractA recent issue of The Educational Forum contained eight articles theming the preparation of teachers for linguistically-diverse classrooms. This article extends that discussion, and in it this scholar introduces practicalities for mathematics teachers in linguistically-diverse classrooms, and provides suggestions for teacher educators whose target audience is prospective mathematics teachers. The author’s intention is to contribute to the discussion of supporting ELLs in mathematics classrooms, and to advance the praxis for teachers and teacher educators. 相似文献
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Suhyun Suh C. Veronica Crawford Karin K. Hansing Sadi Fox Minhee Cho Eunbi Chang Seongchan Lee Sang Min Lee 《International journal for the advancement of counseling》2018,40(3):255-266
In this era of globalization, cross-cultural comparison studies could help counselor training programs enhance educational opportunities that are informative, supportive, and culturally responsive to students. Counselors-in-training in both the United States and South Korea were sampled in this study assessing self-esteem (individual and collective) and counselor activity self-efficacy (CA self-efficacy). Results indicated that American students endorsed higher levels of collective self-esteem and CA self-efficacy compared to Korean students. Age was positively correlated with CA self-efficacy in both the American and Korean samples. Additionally, the variable of supervision hours and internship experience was positively correlated with CA self-efficacy for American students, but showed no relationship with CA self-efficacy for Korea students. Implications for understanding the cultural differences of counseling-trainees’ self-confidence and the need for conducting cross-cultural comparison studies to provide insights about the training and development of trainees in cross-cultural settings are discussed. 相似文献
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Suh Sung 《Inter-Asia Cultural Studies》2013,14(4):609-615
Abstract The paper explains the relationship between Japan and its neighboring countries, and the influence of Japanese neo‐nationalism on the idea of an East Asian community. 相似文献
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In multiple‐choice items, differential item functioning (DIF) in the correct response may or may not be caused by differentially functioning distractors. Identifying distractors as causes of DIF can provide valuable information for potential item revision or the design of new test items. In this paper, we examine a two‐step approach based on application of a nested logit model for this purpose. The approach separates testing of differential distractor functioning (DDF) from DIF, thus allowing for clearer evaluations of where distractors may be responsible for DIF. The approach is contrasted against competing methods and evaluated in simulation and real data analyses. 相似文献
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