• The Journal of the Korea Contents Association
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• v.22 no.5
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• pp.527-541
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• 2022

This study analyzed the structural relationship between motivation to participate in online lifelong education through YouTube, academic self-efficacy, and learning flow, where learners are rapidly increasing due to the spread of COVID-19. For this study, an online survey was conducted from July 16 to 30, 2021 for adult learners living in the metropolitan area. A total of 428 people participated in the survey, and a total of 409 copies of the results were analyzed, excluding 19 insincere responses. The main analysis results are as follows. First, The fitness of the research model was verified to be suitable for all analysis. Second, as a result of confirming the coefficients and statistical significance of each pathway in the research model, the motivation to participate in YouTube lifelong education was learning flow and academic self-efficacy, and academic self-efficacy also had a positive effect on learning flow. Third, it was confirmed that the effect of participation motivation in YouTube lifelong education on learning flow through academic self-efficacy was a statistically significant partial mediation. This study is meaningful in that it verified the structural relationship analysis between participation motive, academic self-efficacy, and learning flow in online lifelong education using YouTube reflecting the digital transformation of lifelong education due to COVID-19. Reflecting the need for re-regulation of lifelong education formed after COVID-19 and the flow of digital transformation through the research results, we discussed how lifelong education can enhance learners' motivation to participate and strengthen learning flow through academic self-efficacy as a medium.

• Smart Media Journal
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• v.12 no.6
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• pp.27-34
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• 2023

As Netflix usage has increased due to the COVID-19 pandemic, users' experiences with the service have also increased. Therefore, this study aims to conduct topic modeling analysis based on Netflix review data to explore the changes in Netflix user experience and service before and after the COVID-19 pandemic. We collected Netflix app review data from the Google Play Store using the Google Play Scraper library, and used topic modeling to examine keyword differences between app reviews before and after the pandemic. The analysis revealed four main topics: Netflix app features, Netflix content, Netflix service usage, and Netflix overall reviews. After the pandemic, when user experience increased, users tended to use more diverse and detailed keywords in their reviews. By using Netflix review data to analyze users' opinions, this study shows the changes in user experience of Netflix services before and after the pandemic, which can be used as a guide to strengthen competitiveness in the competitive OTT market.

• The Journal of the Korea Contents Association
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• v.21 no.10
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• pp.264-273
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• 2021

To study how digital content can be effectively developed and transformed in a post-COVID world in which the normal operations of museums have been disrupted, this paper analyzes the rapid development and limitations of VR exhibitions and proposes, as an alternative, the development of AR exhibitions. Studying VR/AR exhibitions that ran before and after COVID-19, this paper finds that VR, on the one hand, translates physical objects into digital video, which lacks aesthetic depth, and encounters operational problems originated by devices. By using mobile devices that are widely distributed and convenient to use, AR exhibitions can, on the other hand, be divided into three types: "museum-specific exhibitions" can present digital content in a specific indoor space, while "place-specific exhibitions" can be used in open outdoor spaces. The "non-place-specific exhibitions", can, as third type, combine digital content with printed material sent by postal mail. Among these three types, the specific/unspecified place type shows the highest "uncontact effect," which can suggest the best direction for effective museum content development in the pandemic era.

• Journal of Digital Convergence
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• v.20 no.5
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• pp.129-138
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• 2022

After the spread of COVID-19 in China, Chinese medical workers bear the high-intensity work, these problems reduced psychological well-being. Psychological well-being will affect the members'behavior and job performance. Authentic leadership can improve the members'psychological well-being. This study focuses on the psychological well-being and explores how authentic leadership in the process of affecting the psychological well-being, to find out the mediating role of the leaders' relational conflict and the job stress. This study found that authentic leadership in the process of improving the members'psychological well-being, job stress will play a negative mediating effect. Under the background of COVID-19 era, this study helps to improve the psychological well-being level of medical staff.

• Journal of Internet of Things and Convergence
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• v.7 no.2
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• pp.13-19
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• 2021

It is analyzed that the energy pattern is affected by the social matters of the disease trend where the energy consumption has been reduced following the depression of the national economy. The campaign of social distance for the people has been done by voluntary or legally due to the epidemic of the Coronavirus Disease 2019 (COVID-19). Some economic stimulus policies have been done in some countries including the United States, South Korea, and some others. It is shown the susceptible, infectious, and recovered (SIR) modeling applied by system dynamics (SD) where the logical modeling is constructed with S, I, and R. Especially, the I is connected with Society including Population, Race, and Maturity. In addition, Economy and Politics are connected to Income, GDP, Resources, President, Popularity, Ruling Government, and Leadership. The graph shows the big jump on 2020 April when is the starting month of the S value multiplication. This shows the effect of the COVID-19 and its related post-pandemic trend. The trends of OECD and non-OECD are very similar and the effect of the virus hazards causes significantly to the economic depressions.

• Journal of Digital Convergence
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• v.18 no.5
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• pp.179-186
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• 2020

The purposes of this paper were: 1) to identify the structural changes of the northeast Asia airport network caused by the pandemic of COVID-19 using social network analysis (SNA) and 2) to suggest proposals for improving airport competitiveness. In this respect, the entire international air routes in northeast Asia airport collected data of 4-10 March 2019 and 9-15 March 2020 through schedules analyzer database of OAG. We found that both the density and centrality have decreased since the spread of COVID-19. The government and airport authorities need active support such as a reduction of various fees and a moratorium on transportation rights to overcome the crisis in the air transport industry. When the COVID-19 situation calms down in the future, we hope that further research will be conducted to identify the structural changes in the SNA aspects through the vast data establishment in countries such as the EU and America.

• Korean Journal of Psychosomatic Medicine
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• v.30 no.1
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• pp.22-29
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• 2022

Objectives : In this study, we evaluate psychological stress, symptoms of anxiety and depressed mood and resilience which medical residents and interns perceived during COVID-19 event, then investigate the associations between stress and the symptoms and mediating effect of resilience on the associations. Methods : In this study, we made a self-reporting form to evaluate psychological stress with perceived stress scale (PSS), symptoms of anxiety and depressed mood with Hospital anxiety and depression scale (HAD), and resilience with Conner-Davidson Resilience Scale (CD-RISC). Medical residents and interns, who worked in a hospital during COVID-19 event, filled the self-reporting forms from july, 2020 to august, 2020. We conducted a Pearson correlation coefficient and a multiple regression to confirm association between psychological stress and symptoms of anxiety and depressed mood, then mediating effect of resilience. Results : The higher stress perceived, the more symptoms of anxiety and depressed mood were reported by medical residents and interns. The higher resilience is associated with lower stress and less symptoms of anxiety and depressed mood, which resilience is proven to mediate partially the association between stress and symptoms of depressed mood. Conclusions : This study shows that resilience has a partial mediating effects on the association between stress and psychological pathology especially depressed mood, given that medical residents and interns were under psychological distress during COVID-19 event. This suggests that resilience is the key for medical trainees to overcome the future crisis like COVID-19 event.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2021.11a
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• pp.109-111
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• 2021

IT를 기반으로 하는 상거래 시장은 COVID-19와 맞물려 많은 변혁이 오고 있다. 과거 오프라인에서 주로 소비되던 생필품이 전자상거래 시장으로 이동하는 등 COVID-19 이후 온라인 구매 전환이 더욱 확대 강화될 것으로 보인다. 그로인해 물류센터를 운영하는 물류기업 또한 과거 하역 및 하역에 수반하는 보관중심의 전통적 물류기능만을 고수하기에는 변화되는 트랜드가 너무 급박하여 기업의 존립까지도 위협을 받을 수 있다. 이에 본 연구에서는 항만의 미래 생존전략을 위해 전자상거래 시대의 환경변화에 빠르게 대응할 수 있도록 국가간 전자상거래 기반 부산항의 풀필먼트센터 구축 당위성과 전환수요 등을 도출하였다.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.33 no.4
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• pp.207-228
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• 2022

This study compared the behavior of using the reading room of the university library before and after COVID-19 and confirmed the changes and characteristics. As a subject of the study, 579,555 reading room usage data for the 2019-2021 school year, three years before and after the outbreak of COVID-19, were collected and analyzed for reading room utilization. In addition, the purpose of visiting the library was compared based on 120,090 data usage logs, and the relationship between the characteristics and usage rate of each reading room was analyzed. Ultimately, it is intended to suggest a way to increase utilization by reflecting the needs of users derived from changes in usage behavior during the COVID-19 period in the reading room space of the university library. It is hoped that the results of this research will be used as basic data for the operation of library reading rooms and the establishment of space reconstruction policies to cope with the New normal era after pandemic.

• Journal of the Korean Applied Science and Technology
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• v.41 no.2
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• pp.188-198
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• 2024

This study was conducted to understand the level of compliance and influencing factors to respiratory infection prevention among the college students who experienced the COVID-19 pandemic. An online survey was conducted on 200 college students from December 15, 2023 to January 5, 2024, and the data of 199 people who responded faithfully were analyzed using descriptive statistics, t-test, ANOVA, and multiple regression through SPSS 18.0. According to the result, the compliance level of respiratory infection prevention was 32.95±6.05 points on average out of 48 points. The general characteristics, which showed differences in the compliance level of respiratory infection prevention, and the characteristics related to respiratory infections were identified to be major (t=-2.59, p=.010), education on respiratory infection prevention (t=1.99, p=.048), influenza vaccination of the year (t=-2.10, p=.037), COVID-19 vaccination of the year (t=3.56, p<.001), and mask wearing in crowded places (t=4.96, p<.001). As for the factors influencing the compliance to respiratory infection prevention, major (β=0.31, p<.001), influenza vaccination of the year (β=-0.15, p=.046), and mask wearing in a crowded places (β=-0.31, p<.001) were identified as a significant variable in the multiple regression analysis. In conclusion, since respiratory infections continue to occur even after the termination of COVID-19 epidemic, it is necessary to make efforts to promote compliance to respiratory infection prevention practice, and it is expected that the factors identified in this study can be used as the basic data when developing a respiratory infection prevention program targeting college students.