• Journal of Korean Elementary Science Education
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• v.40 no.2
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• pp.267-281
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• 2021

The purpose of this study was to investigate the effect of breeding experiences of companion animals on elementary school students' interest in science, science curiosity, and science self-concept in relation to companion animals that are rapidly increasing in modern society. To achieve the purpose of this study, level of four hundred and seventy-four 6th grade at elementary school students' interest in science, science curiosity, and science self-concept according to breeding experiences of companion animals were compared and analyzed through ANOVA and independent sample t-test. As a result of the analysis, students who have experience in raising companion animals have higher interest in science, science curiosity, and science self-concept than students who have no experience in raising companion animals. It is believed that students participate in breeding activities of companion animals with interest and curiosity, and that self-concept has increased due to the process of acquiring knowledge necessary to raise companion animals and successful breeding experiences. The results of this study are meaningful in that they discussed the implications of breeding experiences of companion animals for science education, using companion animals that have not been studied much in the field of science education so far.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.22 no.2
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• pp.336-344
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• 2021

The purpose of this study was to identify the self-awareness of smartphone dependence among undergraduate students and their response to the same. The data was drawn from a survey on smartphone overdependence conducted by the Ministry of Science and information and communications technology (ICT) and the National Information Society Agency in 2017. The responses of 1,735 undergraduate students were analyzed by frequency, percentage, mean, standard deviation, minimum-maximum value, ��2-test, independent t-test, Pearson's correlation coefficient, and stepwise multiple regression analysis. The results indicated that 22.3% of participants were at risk of smartphone dependence, and 63.6% of them were unaware of their dependence on smartphones. The perception of smartphone dependence was significantly associated with a higher risk of smartphone dependence (��=.35, p=.000) and the increasing use of applications such as games (��=.19, p=.000), television/video (��=.11, p=.000), and learning (��=.11, p=.000). Of the participants with dependence awareness, only a few knew about the existence of centers to prevent smartphone and internet dependence. Moreover, they rarely utilized these centers. However, the participants felt the need for more counseling agencies (26.8%), programs for dealing with oneself (23.2%), information about smartphone dependence (14.9%), and help to overcome dependence (10.9%). These findings show the need to establish public services so that students can easily access correct information on smartphone dependence and address this problem.

• Environmental and Resource Economics Review
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• v.30 no.1
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• pp.129-167
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• 2021

The emission trading system is an essential policy for reducing greenhouse gas emissions and converting low-carbon society. EU ETS is a good benchmark that is ahead of Korea's emission trading system in terms of operating period and design know-how. Therefore, this study focused on the key design elements of EU ETS phase 4 such as total emission allowances issued (Cap), free allocation method, carbon leakage list, market stability reserve, and innovation supporting system. In addition, we analyzed the impact of key design elements and their changes during EU ETS Phase 1 to 4 on the design and operation of Korea emission trading system in the future. First of all, the expected impact on the design of Korea emission trading system is to increase three demands: preparing benchmark renewal plans, establishing criteria for selecting free allocation industries that reflect domestic industrial structure and characteristics and introducing two-stage evaluations for free allocation industries, and preparing specific plan to support innovation and industries using allowance auction revenues. The next three impacts on the operation of Korea emission trading system are the increased needs for objective and in-depth impact assessment of plan and amendments, provision of system stability and response opportunities by quickly confirming plan and amendments prior to the implementation, and coordination of the emission trading system governance and stakeholder participation encouragement.

• Journal of Convergence for Information Technology
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• v.12 no.4
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• pp.219-230
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• 2022

This study aims to evaluate the effect of sleep duration on obesity in Korean adult using data from the 8th Korea National Health And Nutrition Examination Survey in 2019. The study subjects were 5,213, and we performed frequency analysis, descriptive statistics, and multivariate regression analysis using the SPSS Win 27.0 program. The average sleep duration of the subjects was 6.8 hours per day, and the average body mass index (BMI) was 23.9 kg/m². As a result of bivariate analysis of factors affecting sleep duration, age, education level, stress, depression, diabetes, hypertension, and arthritis were significantly associated with sleep duration. The body mass index (BMI) of the group with less than 6 hours of sleep duration was 24.4, which was higher than that of other groups, and there was a significant negative correlation between sleep duration and BMI (B=-0.247; 95% CI=-0.334~ -0.160). In conclusion, in order to prevent obesity in adults, various efforts from the country and local communities are needed to increase sleep duration.

• The Journal of the Korea Contents Association
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• v.22 no.4
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• pp.433-444
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• 2022

This study aimed to identify the change trajectories and clusters of Korean women's family values and depression levels, and the factors affecting depression, to use balanced panel data from the 1st to 7th rounds of the Korea Longitudinal Survey of Women and Families(KLSWF). The subjects of this study were 5,048 female panelists who participated in the KLSWF, and LSTM analysis was conducted using Python to divide the clusters of Korean women suffering from depression. In addition, descriptive statistical analysis, ANOVA, multinomial logistic regression analysis, and hierarchical regression analysis were analyzed using SPSS 23.0. Results, It was confirmed that women's depression increased with age, and family values had a significant impact on depression. It was found that the more open the marriage values of women in the married group, the higher the level of depression. The family values trajectory and depression level of the analyzed subjects were not a single pattern, but included four clusters. To prevent depression among Korean women and provide more concrete interventions, a humanities and sociological system that can identify depression groups should be prepared.

• 한국노년학
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• v.40 no.1
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• pp.163-178
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• 2020

The purpose of this study is to analyze leisure factors affect happiness of the elderly by sex in Korea and then to discuss implications for the findings. Data of National Leisure Activity Survey conducted by Korea Culture & Tourism Institute in 2016 were used for this study. From this dataset, 891 male elderly and 970 female elderly aged above 65 were selected for this study. Ordered logistic regression model was used by considering the nature of the dependent variable. The results of this study can be summarized as follows. First, choice proportions of leisure activities classified by four type are different by sex of the elderly. Second, among control variables, household income, residential area, joining a club have different significant effect on happiness of the elderly by sex but volunteering have same significant effect on happiness of the elderly by sex. Third, any type of leisure activity have no significant effect on happiness of both the male elderly and the female elderly. Fourth, cost of leisure has significant positive effect on happiness of both the male elderly and the female elderly but has different significance by sex. Fifth, focus on leisure rather than work has very significant positive effect on happiness of both the male elderly and the female elderly. Sixth, leisure life satisfaction has very significant positive effect on happiness of both the male elderly and the female elderly.

• The Journal of the Korea Contents Association
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• v.21 no.11
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• pp.389-402
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• 2021

The purpose of this study is to examine early childhood teacher's perception and current implementation toward autonomy and to provide basic data for related research. The survey was conducted with 121 public and private kindergarten teachers. The study results are as follows: First, as for teachers' perception of autonomy, the majority of the survey respondents answered that "I am very interested in the concept of autonomy and have tried to practice it." In terms of areas for which they expect to be given autonomy, "autonomy in developing and operating education plans" was most answered. Second, as for teachers' practice of autonomy, teacher autonomy was answered most for "work and operation" in the development and implementation of education plans among "institutional autonomy." In terms of communication between parents and the local community, "operation of the kindergarten website" and "operation of teachers' personal e-mail" were most answered. In addition, "participation in teacher training" was most answered for the development of teachers' expertise, and "interaction with infants" for "autonomy in educational activity." Lastly, it is expected for follow-up research to perform case studies to understand the context of the implementation of teacher autonomy.

• Journal of Science Education
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• v.45 no.3
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• pp.275-291
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• 2021

The purpose of this study is to analyze the level and characteristics of system thinking of middle and high school students on cycle of matter in the Earth system considering the impact of human activities on the cycle. For this purpose, we developed items for assessment and assessment rubric through the analysis of 2015 revised curriculum and applying systems thinking, respectively. Middle and high school students who participated in the Korea Earth Science Olympiad were the subjects of this study. The level of system thinking was determined using the assessment rubric for student responses collected using items for assessment. The characteristics of system thinking were identified using word analysis. Based on these, the improvement of the curriculum considering the impact of human activities was discussed. The results of the study are as follows: first, the system thinking level of most secondary school students was low in identifying or classifying system elements for matter cycle, and high levels, such as system relationship or generalization of patterns, were found to be relatively small. It was found that students had a higher level of system thinking in the carbon cycle than in the water cycle. Second, in terms of the characteristics of system thinking about water cycle, water was recognized as a major system element and mainly related with evaporation between atmosphere and other system elements. Whereas, in the carbon cycle, carbon dioxide was regarded as a major system element, and photosynthesis and respiration were represented in relation with the biosphere. Third, for education considering the impact of human activities on the matter cycle in the Earth system, it is proposed improving the curriculum considering the socio-ecological system by extending the existing earth system.

• The Journal of the Convergence on Culture Technology
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• v.8 no.5
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• pp.741-747
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• 2022

The purpose of this study is to analyze the success and failure factors of the Seoul Garden show to redefine the purpose and goal of the Seoul Garden show in the future, and to create a foundation for the Seoul Metropolitan Government to contribute to the popularization and spread of garden culture and improvement of emotional life. In order to achieve the above purpose, a survey was conducted on two groups of the general public and exhibition participants. The contents of the survey include identifying satisfaction factors and problems with the Seoul Garden show, and establishing the direction of the Seoul Garden show. As for the factors of success, the number of writers was the highest, and the improvements were overall for each element of the Seoul Garden show, but mainly for industrial exhibitions, rest areas, and publicity. In addition, the Seoul Garden show should be held in the old park with the aim of spreading, popularizing, and living the garden culture, and many gardens should be created around the artist's garden. The Seoul Garden show is contributing to society in many ways, and there are some improvements, but considering the high willingness to revisit the Seoul Garden show, it can be said that the Seoul Garden show so far is valuable enough.

• Journal of Industrial Convergence
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• v.20 no.12
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• pp.1-9
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• 2022

The objective of this study was to analyze the factors affecting the stages of change of exercise in middle-aged men who work. 170 middle-aged men who work surveyed, 40 to 59 years old, is residing, Chung-Buk and Chung-Nam province, who understand the purpose of this study and agree to participate in this study. This study data is analyzed by using frequency, percentage, standard deviation, t-test, 𝑥² test and Logistic regression analysis. The study show that the exercise self-efficacy(𝛽=.965, p=.003) and the perceived health status(𝛽=.805, p=.025) among middle aged men who work have an effect on the stages of change of exercise meaningfully. That is, the exercise self-efficacy of middle aged men who work who have exercise behavior is 2.6 times higher than middle aged men at work who don't have exercise behavior, and the perceived health status is 2.2 times higher. This study suggests that the development of better exercise practice for middle aged men who work should be aimed at promoting exercise self-efficacy and perceived health status, Based on this, it is necessary to find ways to operate exercise programs at the workplace and community level.