• Journal of The Korean Association For Science Education
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• v.24 no.6
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• pp.1206-1215
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• 2004

In this study, we explored the students' perceptions on the online discussion system for physics investigation as the physics education program. With these, we explored the characteristics of online discussion system. For these, the questions and interviews were executed in order to get informations about user-friendly characteristics of on-line discussion learning system of physics investigation, asynchronicity of on-line investigation discussion, on-line investigation discussion related to writing, visual cues and physical presence of on-line investigation discussion and preference of on-line investigation discussion. The students represented that there were two advantages in the online investigation discussion. One is that they could participate in the on-line investigation discussion without the restriction of time and space, and the other is that they could enter into a dispute with sufficient consideration because of the asynchronicity characteristic of online investigation discussion. Although the online educational activity is mainly achieved by independent work on the part of students, the role of teacher and parents is more important than the technical part of online educational system for the active participation.

• Proceedings of the Korea Contents Association Conference
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• 2005.05a
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• pp.178-182
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• 2005

From the result of analysis to animation, it can be detected the close relation between myth and animation. As Plato mention that myth is a story. Though it is common field for many researchers on myth and animation now, but it have been performing many researches only for animation narrative in the aspect of myth. Therefore this study will be examined that the ritual ceremony, the frequency of participation, and imagination of myth can be related with animation directly. The ritual ceremony is a similar activity to go to theater for watching animation. It can be merged into the unconsciousness state while awaken state. A high frequency of ritual ceremony can also be provide the experience of shortening a distance between the present and the ancient time of mythical aura. Last, imagination is an enemy of rational thoughts, however, it is vital source and material which was created by myth and it can also create new animation. It will be formulated a methodology for this paper which are three elements for an analogizing tool with new mythological approaches, it is inclusive method for animation and myth. So it can be applied and analyzed to other visual media with this methodology.

• Journal of Korean Academy of Nursing
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• v.50 no.2
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• pp.191-199
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• 2020

Purpose: The purpose of this study was to compare sociodemographic characteristics of a normal cognitive group and mild cognitive impairment group, and establish prediction models of Mild Cognitive Impairment (MCI). Methods: This study was a secondary data analysis research using data from "the 4th Korea Longitudinal Study of Ageing" of the Korea Employment Information Service. A total of 6,405 individuals, including 1,329 individuals with MCI and 5,076 individuals with normal cognitive abilities, were part of the study. Based on the panel survey items, the research used 28 variables. The methods of analysis included a χ²-test, logistic regression analysis, decision tree analysis, predicted error rate, and an ROC curve calculated using SPSS 23.0 and SAS 13.2. Results: In the MCI group, the mean age was 71.4 and 65.8% of the participants was women. There were statistically significant differences in gender, age, and education in both groups. Predictors of MCI determined by using a logistic regression analysis were gender, age, education, instrumental activity of daily living (IADL), perceived health status, participation group, cultural activities, and life satisfaction. Decision tree analysis of predictors of MCI identified education, age, life satisfaction, and IADL as predictors. Conclusion: The accuracy of logistic regression model for MCI is slightly higher than that of decision tree model. The implementation of the prediction model for MCI established in this study may be utilized to identify middle-aged and elderly people with risks of MCI. Therefore, this study may contribute to the prevention and reduction of dementia.

• Journal of the Korea institute for structural maintenance and inspection
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• v.7 no.2
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• pp.105-113
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• 2003

Because structural systems are becoming lighter and more flexible and have lower natural frequencies and dampings than before, coordinated rhythmic activities such as dancing, audience participation in arenas or concert halls, and aerobics result in undesirable levels of vibration. For rhythmic activities, it is resonant or near resonant behavior that result in significant dynamic amplification and hence human discomfort. The most rational design strategy is to provide enough of a gap between the natural frequency of a floor system and the dominant frequencies excited by planned human activities to assure reasonably that resonance will not occur. For the case study the vibration measurements were performed at the floor of a long-span multi-purpose hall during the rock concert of popular singer.

• The Journal of Industrial Distribution & Business
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• v.9 no.8
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• pp.35-40
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• 2018

Purpose - The purpose of this study is to conduct a monitoring study on the learning process of e-learning contents. This study has two research objectives. First, by conducting monitoring research on the learning process, we aim to explore the implications for content development that reflects future student needs. Second, we want to collect empirical basic data on the estimation of appropriate amount of learning. Research design, data, and methodology - This study is a case study of learner's learning process in e-learning. After completion of the study, an in-depth interview was made after conducting a test to measure the total amount of cognitive load and the level of engagement that occurred during the learning process. The tool used to measure cognitive load is NASA-TLX, a subjective cognitive load measurement method. In the monitoring process, we observe external phenomena such as page movement and mouse movement path, and identify cognitive activities such as Think-Aloud technique. Results - In the total of three research subjects, the two courses showed excess learning time compared to the learning time, and one course showed less learning time than the learning time. This gives the following implications for content development. First, it is necessary to consider the importance of selecting the target and contents level according to the level of the subject. Second, it is necessary to design the learner participation activity that meets the learning goal level and to calculate the appropriate time accordingly. Third, it is necessary to design appropriate learning support strategy according to the learning task. This should be considered in designing lessons. Fourth, it is necessary to revitalize contents design centered on learning activities such as simulation. Conclusions - The implications of the examination system are as follows. First, it can be confirmed that there is difficulty in calculating the amount of learning centered on learning time and securing objective objectivity. Second, it can be seen that there are various variables affecting the actual learning time in addition to the content amount. Third, there is a need for reviewing the system of examination of learning amount centered on 'learning time'.

• The Journal of the Korea Contents Association
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• v.15 no.12
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• pp.204-211
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• 2015

This study made fundamental approaches on the significance of social enterprises on minority protection policies. In particular, it offered discussions focused on the relationship between social enterprises and North Korean defectors which greatly affect minority policies. Study results can be summed up as follows. First, the greatest difficulties for North Korean defectors in their adjustment to Korean society are economic activities and a sense of social differences and social enterprises are a policy which can resolve these problems in the most effective way. Second, existing social enterprises were excessively run by the central government and they were support models which lacked creativity and development. To resolve such problems, a lesson was learned that these must change into policy models with local coproduction. Third, a lesson was learned that social enterprises offer more than simple economic activity, offering the proper functions of society, culture, living, and language, and thus the participation of North Korean defectors in social enterprises should be made mandatory in certain sectors. Such research results will contribute to theoretically explaining the relationship between North Korean defectors and social enterprises as minority policies.

• The Journal of Korean Physical Therapy
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• v.22 no.1
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• pp.9-17
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• 2010

Purpose: The purpose of this study was to compare the effects of Tai-Chi exercise (TCE) and resistance exercise (RE) when used as part of a community-based exercise program on improvement of physical function in elderly women with knee arthritis. Methods: Forty-seven women with knee arthritis participated in this study. They were assigned to one of two groups: the TCE group (n=22) or the RE group (n=25). Tai-Chi exercise and resistance exercise sessions were held for 1 hour per session, twice per week, for 8 consecutive weeks. At pre-treatment and post-treatment, subjects were tested using the following measurements: one-legged stand test (sec), a functional reach test (cm), a test of the strength of the knee extensor and flexor muscles, determination of the pathway of center of foot pressure and vertical ground reaction force for stance phase at pre and post treatment time points. An independent t-test and a ${\chi}^2$ were used to determine the significance of differences between group means using SPSS 12.0. Results: After 8 weeks of participation in the exercise programs, there were significant improvements for both groups in joint pain, difficulty of performing activity, muscle strength of knee extensor and flexor. Also, vertical ground reaction force increased at the loading response phase for both groups. The RE group was significantly different from TC group on the eyes-closed one-legged stand test (sec). Conclusion: Tai-Chi exercise and resistance exercise programs improve physical functioning and reduce pain and locomotion difficulties.

• Journal of Internet Computing and Services
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• v.3 no.3
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• pp.11-17
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• 2002

The web-based distance education has some problems in managing students despite the merit of getting over the problem of time and space compared with the classroom education or residential course. These problems make the web-based distance learners difficult in achieving the purpose and the standard of goal. And they drive the manager in charge of the web-based distance education into worries. The manager of the distance education should keep on monitoring students' participation and response, and then give the appropriate feedback to the students. But, the existing distance education system neglects to support efficient management function, for it puts emphasis on the activity of teaching and learning. Therefore, the purposes of this study are to extract the factors that are necessary to manage the distance education for training teachers, to realize the effective management system which can offer a proper feedback in the distance education for training teachers through the application of those factors to the training program, to make it possible to change the management system flexibly according to the curriculum and the computing setting.

• Journal of Fashion Business
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• v.16 no.4
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• pp.88-99
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• 2012

Recently the hair style of Michelle Obama, the world's most recognized First Lady of the United States has been loved by the public with her optimistic confidence and as a fashion leader. For Michelle Obama's hair styles by length, a medium-short cut style was expressed in various ways to show her strong will by exposing the forehead, an elegant image by asymmetry hair, or a progressive image by a short volume hair cut. A medium cut style expressed an elegant and intelligent image in shoulder-length and a trendy image using a side parting. A updo hair style produced young, womanly, and casual images using twisting, binding, typing up, and rolling technique according to situations. For hair styles associated with her roles, when participating as a diplomatic delegate, she expressed the President's helpful partner by a soft and womanly image using bobbed hair and half updo technique. For the participation in state occasions, her hair styles were examined in three situations. First of all, she mainly had a neat style, exposing her forehead in official schedules as a political partner to create an intelligent and high-class image. Second, she expressed a strong will with a medium-short style during an election campaign. Finally, she showed an elegant and refined hair style in consideration of T.P.O. during social activity. Michelle Obama overcame her hair's handicap, grasped her images associated with hair length, and expressed hair strategically according to her roles as the first African-American First Lady of the United States.

• The Journal of Korean Society for School & Community Health Education
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• v.12 no.1
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• pp.103-116
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• 2011

Objective: The study analyzed degrees of participation in physical activities, demographic and sociological characteristics of middle and high school students, and the relations to mental health related factors, based on "Korea youth risk behavior web-based survey." Therefore, the study can be used as preliminary data for establishing mental health promotion plans for youth and setting contents and directions of health education. Methods: The study analyzed the data, collecting from 75,066 middle and high school students, regarding their demographic and sociological characteristics, mental health, and relations to physical activities by using SPSS Win 15.0. Results: 19.1% of the students answered they had seriously contemplated suicide during the past 12 months, and 43.2% said they are usually under enormous pressure. 55.3% answered that academic achievements and the pressure from future paths are major factors of their stress. The students showed noteworthy differences in whether they think about suicide depending on whether the students live with their father or mother. The study found that the students whose parents' levels of education are low, or their academic records are low, or economic conditions are poor are more likely to think about suicide. The students tend to think more about killing themselves if they spend more time sitting to study than being engaged in physical activities, or spend little time walking. And they are more likely to think about committing suicide if they spend little time exercising, or are not engaged in physical activities on the playground or a gym in PE classes.