National Youth Policy Institute

We present the main results from a long-term reverberation mapping campaign carried out for the Seoul National University AGN Monitoring Project (SAMP). High-quality data were obtained during 2015–2021 for 32 luminous active galactic nuclei (AGNs; i.e., continuum luminosity in the range of 1044–46 erg s−1) at a regular cadence, of 20–30 days for spectroscopy and 3–5 days for photometry. We obtain time lag measurements between the variability in the Hβ emission and the continuum for 32 AGNs; 25 of those have the best lag measurements based on our quality assessment, examining correlation strength and the posterior lag distribution. Our study significantly increases the current sample of reverberation-mapped AGNs, particularly at the moderate-to-high-luminosity end. Combining our results with literature measurements, we derive an Hβ broadline region size–luminosity relation with a shallower slope than reported in the literature. For a given luminosity, most of our measured lags are shorter than the expectations, implying that single-epoch black hole mass estimators based on previous calibrations could suffer large systematic uncertainties.

forums, colloquiums, courses, roundtable discussions) organized by ATINER throughout the year and entail significant costs of participating.

[This corrects the article DOI: 10.3389/fpsyg.2020.00353.].

This study adopted the modified Delphi method to build key competence indicators for the course subject ‘Environment’ in the secondary school curriculum in South Korea. 15 Delphi panelists participated, and were provided a three-stage questionnaire survey. The findings classified eight secondary school ‘environment’ curriculum key competencies into three domains: intellect-oriented, personality-oriented, and relationship-oriented. The intellect-oriented domain includes ‘critical-thinking ability,’ ‘creativity,’ and ‘problem-solving ability’; the personality-oriented domain includes ‘autonomy,’ ‘ability to reflect,’ and ‘environmental sensitivity’; and the relationship-oriented domain includes ‘communication ability’ and ‘ability to manage conflicts.’ These environmental competencies were utilized to revise the current environmental education curriculum as part of the 2015 revision of the National Curriculum and set the key competencies for environment classes. The paper concludes with the significance of developments in theorizing and implementing environmental education curriculums in Korea and abroad.

This study investigated whether there are gender-based differences in the process wherein family functions influence stress through various health behaviors in midlife adults. A cross-sectional study was done using a convenience sample of 250 middle-aged Koreans. Data on the family APGAR index, four health behaviors (i.e., seeking health information, physical activity, healthy diet, and social interaction), and stress were collected by a self-administered survey and analyzed using hierarchical multiple linear regression analyses and a PROCESS macro for SPSS. The study results showed that an indirect effect of family function on stress through health behaviors was significant in women, whereas such a relationship was not shown in men. This study found that the process wherein family function is linked with stress through health behaviors differs by gender. Developing gender-specific interventions is essential to decrease stress in midlife adults.

Objectives This study examined the influence of parental neglect on mobile phone dependency among higher grade students in Korean elementary schools and investigated whether social withdrawal and self-esteem mediated this relationship. Methods Data were obtained from the Korean Child-Youth Panel Survey (KCYPS). The participants of this study were 2,067 sixth-grade elementary school students (1,066 boys, 1,001 girls). The data were analyzed by means of descriptive statistics, Pearson's correlation, and structural equation modeling. Results The results of this study were as follows. First, high social withdrawal and low self-esteem were related to high mobile phone dependency. Second, social withdrawal and self-esteem mediated the effect of parental neglect on mobile phone dependency among higher-grade elementary school students. Parental neglect influenced mobile phone dependency only through social withdrawal and self-esteem. Conclusion The results of this study suggest that interventions aimed at decreasing social withdrawal and increasing self-esteem are important to prevent mobile phone dependency among higher-grade elementary school students. In addition, students’ level of social withdrawal and self-esteem should be checked when parental neglect is high, to prevent them from developing mobile phone dependency. Keywords: mobile phone dependency, parental neglect, social withdrawal, self-esteem, Korean Child-Youth Panel Survey (KCYPS)

Despite the rapidly growing mobile game market in Korea and China, few studies investigated and compared game use patterns between countries. Thus, this study explored the diverse aspects of online gaming (PC gaming and mobile gaming) use by adolescents in both countries in terms of their time spent using online games, preference of game genre, parental mediation strategies and the game effects. Consequently, they showed similar patterns but game addiction was serious among Chinese students. The average hours per day spent on mobile games were about 1 h (61.49 min) for Korean students and about one and a half hours (85.72 min) for Chinese students. Compared with PC online games, students in both countries enjoyed mobile games more often after midnight. The frequency of cyberbullying experiences was similar among respondents from both countries. Korean and Chinese students liked almost the same game genres. They liked RPGs and sports/racing games most.

Given the rapid growth of mobile games, one of the main purposes of this study is to analyze the effect of online gaming on addiction by classifying it into PC online gaming and mobile gaming. This study aims to analyze the extent to which playing games after midnight affects addictive behavior. In addition, this study analyzes the impact of game genres, parental factors, the leisure environment and relationship satisfaction on game addiction. About 1556 students living in five major Korean cities were sampled. Online game playing time was an important predictor of game addiction, especially among those who played PC online games late at night. Among the game genres, RPG, simulation and casual games were positively associated with addictive behavior. While play and the leisure environment had little effect on game addiction, the extent of satisfaction with relationships with parents, friends, and teachers did have a significant influence. However, parental attachment and parental mediation did not impact game addiction.