• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.39 no.6
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• pp.457-467
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• 2021

This paper aims to analyze changes in urban space use due to social distancing measures for COVID-19 using de facto population data in Seoul during daytime, which is estimated by Seoul Metropolitan Government and telecommunication company of KT using public big data and LTE signal data. The result of kernel density estimation and spatial autocorrelation analysis shows that the distribution patterns of de facto population in 2019 and 2020 were generally similar. This is a result of showing that the government's social distancing measures enabled a certain level of normal activities while suppressing the spread of COVID-19. However, analyzing de facto population subtracting 2019 from 2020 showed different results at the micro level. De facto population decreased in commercial areas but increased in residential areas. This means that COVID-19 social distancing measures had spatially uneven effect. The results of analyzing the effect of regional, land use, economic, educational, and accessibility characteristics on the changes of de facto population using spatial regression analysis are as follows. The higher the density of commercial facilities, the more businesses subject to regulations and schools and universities that require non-face-to-face classes, the more de facto population decreased. Conversely, it was found that de facto population increased in areas with many houses and parks due to telecommuting.

• Journal of the Korean earth science society
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• v.43 no.2
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• pp.253-264
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• 2022

The effect of decreased human activity on the urban heat island intensity (UHII) was analyzed using the observed temperature data of six sites (including one reference area) in Daejeon Metropolitan City from February to May of 2019 to 2021. Depending on the observation site, UHII decreased by approximately 20% in 2020 and 2021 compared to 2019 before COVID-19. The decrease in human activity increased UHII at night and decreased it during the daytime. Consequently, UHII diurnal amplitude increased by approximately 20% in 2020 and 2021 compared to 2019, irrespective of location. The decrease in UHII did not appear to be significantly correlated with natural factors such as wind speed and social distancing steps. In contrast, UHII was correlated with social distancing and significantly reduced air pollutants after COVID-19, with the most significant correlation observed for NO₂.

• Pediatric Infection and Vaccine
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• v.28 no.3
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• pp.144-148
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• 2021

Purpose: Nonpharmaceutical measures, such as social distancing, have resulted in unintended consequences, including a decrease in the incidence of childhood diseases. This study aimed to estimate the impact of social distancing on the incidence of febrile seizure (FS) in Korea using nationally representative data. Methods: We used claims data from the Health Insurance Review and Assessment Service, a single-payer database capturing >95% of the Korean population. The database included any inpatient encounter with a FS diagnosis from January 2010 to September 2020 for those aged 0-5 years old. We aggregated the monthly number of cases to estimate the incidence per 100,000 patient-years in 2020 (January 1 to September 30) for the same periods in 2010-2019. Results: The incidence of FS in 2020 ranged from 113 per 100,000 (95% confidence interval [CI], 108-118 per 100,000) in January to 27 per 100,000 (95% CI, 25-30 per 100,000) in September, whereas the average FS incidence in 2010-2019 ranged from 116 per 100,000 (95% CI, 112-121 per 100,000) in January to 101 per 100,000 (95% CI, 97-106 per 100,000) in September. Conclusions: The incidence of FS decreased by -38% in 2020, suggesting that social distancing contributed towards decreasing the incidence of FS.

• Environmental and Resource Economics Review
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• v.30 no.1
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• pp.27-48
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• 2021

We extend and modify the canonical epidemiology model of Eichenbaum, Rebelo and Trabandt (2020) to investigate the general equilibrium effects of COVID-19 spread in the Korean economy when vaccine, treatment and social distancing are available. Particularly, we develop a SIR-macro model which considers possibility of moral inattention of the overconfident agents through which people is more likely to be infected. Our model implies that people's decision to cut back on consumption and work reduces the severity of the epidemic and thus exacerbate the size of the economic recession caused by the epidemic. Another finding is that the average 13 weeks to develop the vaccine and treatment will lead to 2% drop of consumption.

• The Journal of the Convergence on Culture Technology
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• v.6 no.4
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• pp.567-573
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• 2020

The COVID-19 outbreak had a substantial impact on our lives. Social distancing policies are especially causing severe concern for the cultural and creative industries across the globe. Most performing arts festivals and other venues are being canceled due to COVID-19 fears and social distancing measures. Instead, many individual artists and organizations attempt to deliver their arts online using ICT and live streaming. The actions of the Government in responding to the COVID-19 crisis also provide financial support toward freelance artists and creators, and company. Finally, future directions and areas that need further support are described.

• Monthly Duck's Village
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• s.207
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• pp.10-15
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• 2020

지난 8월 15일 광화문집회로 촉발된 코로나19 재확산세가 무서운 기세로 전국을 뒤덮었다. 서울과 경기일부의 수도권은 사회적 거리두기 2.5단계로 격상하면서 사실상 3단계에 돌입했다. 전국을 뒤덮은 코로나19 재확산의 공포로 북적이던 거리는 텅 비었고 코로나19 상황 속에서도 일상을 찾아가고 있던 시민들은 다시 집으로 숨었다. 코로나19 상황속에서 가장 화두가 되고 있는 것은 '언택트'와 '면역력'. 누구나, 어디서든, 피해갈 수 없는 코로나19시대에는 스스로가 가진 면역력이 최강의 무기가 되기 때문이다. 이제 면역력을 강화하는 식품이 주목받는 시대가 됐다. 그리고 면역력과 건강식품으로 알려진 오리고기가 떠오르고 있다. 코로나시대, 우리가 주목해야 할 오리고기의 면역력과 건강 기능성에 대해 자세히 알아본다.

• The Journal of the Korea Contents Association
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• v.22 no.6
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• pp.530-540
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• 2022

The aim of this study was to analyze the impacts of perceived economic instability on drinking frequency in the mist of exercising the strong social distancing in the early phase of COVID19 pandemic. The data were collected from 1,117 adults aged between 19 and 70 across the nation from May 13 to May 19 in 2020 by Embrain, an on-line research company. We used only 820(73.4%) out of 1,117 who answered that they had a drinking in 2020. Bi-variate analysis and multivariate multinomial logistic regression were performed using STATA16. Multinomial logistic regression results showed that the increase of employment instability was related to the increase of drinking frequency, whereas the increase of income instability was related to the decrease of drinking frequency. In sum, the impact of perceived economic instability during the early phase of pandemic may be presented as an increase or decrease of drinking frequency depending on the effect of employment instability and income instability.

• Journal of Korea Entertainment Industry Association
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• v.14 no.5
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• pp.289-297
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• 2020

The purpose of this study is to learn about the life style change experience of undergraduate due to COVID-19. The study was conducted from March 23, 2020 to March 30, 2020 and was conducted on five undergraduate residing in Jeonju. We valued individual's subjective experiences and analyzed them by applying on of the qualitative studies to identify and describe the phenomena as they are. The study found that the lifestyle changes of undergraduate due to COVID-19 were derived from three components: Psychological change, Environmental change, and Behavioral change. Though the participants felt uneasy and terrified by COVID-19 through the experience of psychological change, they expressed relief and anticipation for the increase in the number of complete healers. Experience of environmental change has experienced social distance, changes in academic operation, and difficulty in finding jobs to prevent infection. Behavioral changes have experienced a matrix of mask purchases and thorough management of personal hygiene, which is considered to protect oneself from COVID-19 while also being considerate to others. It is believed that the government will need to provide psychological and behavioral mediation programs for problems arising from the practice of social distance.

• Journal of the Economic Geographical Society of Korea
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• v.24 no.2
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• pp.127-142
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• 2021

This study identifies the characteristics of changes in the subway passengers and the number of COVID-19 confirmed cases in Seoul. We classify subway stations by applying the principal components extracted based on the correlation between them, and analyzed the passenger traffics and geographical characteristics of each cluster. We extract the "top decile" and "lowest decile" stations among the subway stations that the number of subway passengers have decreased in 2020 compared to 2019, and then examine the population and land use characteristics of station areas both station groups. As the result of cluster analysis according to principal component scores, we obtain 6 cluster types. Subway stations belong to the top deciles which have shown the larger decrease in the passenger traffics tend to more sensitive to COVID-19 shocks. Stations belonging to the top tenth percentile of reduced traffic have a high distribution of daytime traffic, and the hinterland of the station has relatively high land use related to commercial and cultural, religious, and social activities. Therefore, it is expected that the regional resilience around subway stations will also show differences in degree by type.

• Journal of the Korean Regional Science Association
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• v.37 no.2
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• pp.17-33
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• 2021

This study empirically analyzes the effect of the spread of COVID-19 and the implementation of social distancing on the number of park users. To this end, we analyzed the time series data on the number of users and the COVID-19 outbreak at Olympic Park, a large-scale comprehensive urban park located in Songpa-gu, Seoul, and four neighborhood parks in the same municipality. And this was compared with the effect on the change in the number of users around Jamsil Lotte World, a representative indoor complex leisure space in Seoul. The analysis results are as follows: First, in small neighborhood parks located in residential areas, the number of users increased by 3 to 6% on average due to the implementation of the social distancing measures and the increase in the number of confirmed COVID-19 cases. In particular, it was found that changes in park use were sensitive to the increase in the intensity of social distancing. On the other hand, the number of users around Jamsil Lotte World decreased by 38% on average, and in the case of Olympic Park, the number of users decreased by 1.9% on average due to the spread of COVID-19. Considering that the number of the vehicle users representing remote users of Olympic Park has decreased by 23% on average, it is estimated that there is little change in the number of users in the surrounding areas. This suggests that urban parks, especially neighborhood parks in residential areas, play a role as a major refuge and leisure space for urban people in the event of a pandemic disaster such as COVID-19, and therefore need to be properly supplied and maintained.