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The Evolving Policy Debate on Border Closure in Korea
Su-Jin Kang,Jihyun Moon,Heewon Kang,Heekyoung Nam,Sangwoo Tak,Sung-Il Cho 대한예방의학회 2020 Journal of Preventive Medicine and Public Health Vol.53 No.5
302 Copyright © 2020 The Korean Society for Preventive Medicine J Prev Med Public Health 2020;53:302-306 • https://doi.org/10.3961/jpmph.20.213 The Evolving Policy Debate on Border Closure in Korea SuJin Kang1, Jihyun Moon2, Heewon Kang1, Heekyoung Nam3, Sangwoo Tak1, Sung-il Cho1,3 1Institute of Health and Environment, Seoul National University, Seoul, Korea; 2Samsung Advanced Institute of Health Science and Technology, Sungkyunkwan University, Seoul, Korea; 3Department of Public Health Sciences, Graduate School of Public Health, Seoul National University, Seoul, Korea Brief Report Objectives: In this paper, we aimed to investigate the evolving debate over border closure in Korea during the coronavirus disease 2019 (COVID-19) pandemic, to address the main themes associated with border closure, and to discuss the factors that need to be considered when making such decisions. Methods: We collated and reviewed previously conducted review studies on border closures during infectious disease outbreaks to derive relevant themes and factors. Results: According to our systematic review on border closures and travel restrictions, the effects of such containment efforts are limited. We suggest considering the following factors when determining whether to impose border closure measures: (1) disease characteristics, (2) timeliness of implementation, (3) transmission delay and the basic reproduction number, (4) globalization and pandemics, and (5) social and economic costs. Conclusions: Our assessment indicates that the effects of border closures are at best temporary and limited. Alternative measures must be contemplated and implemented to suppress the spread of COVID-19 in particular and infectious diseases more broadly.
( Jihyun Moon ),( Yuri Cho ),( Hoonyol Lee ) 대한원격탐사학회 2021 大韓遠隔探査學會誌 Vol.37 No.1
This study measures the change of ice flow velocity of David Glacier, one of the fast-moving glaciers in East Antarctica that drains through Drygalski Ice Tongue. In order to effectively observe the rapid flow velocity, we applied the offset tracking technique to Sentinel-1A SAR images obtained from 2016 to 2020 with 36-day temporal baseline. The resulting velocity maps were averaged and the two relatively fast points (A1 and A2) were selected for further time-series analysis. The flow velocity increased during the Antarctic summer (around December to March) over the four years’ observation period probably due to the ice surface melting and reduced friction on the ice bottom. Bedmap2 showed that the fast flow velocities at A1 and A2 are associated with a sharp decrease in the ice surface and bottom elevation so that ice volumetric cross-section narrows down and the crevasses are being created on the ice surface. The local maxima in standard deviation of ice velocity, S1 and S2, showed random temporal fluctuation due to the rotational ice swirls causing error in offset tracking method. It is suggested that more robust offset tracking method is necessary to incorporate rotational motion.
Perspectives on immune checkpoint ligands: expression, regulation, and clinical implications
( Jihyun Moon ),( Yoo Min Oh ),( Sang-jun Ha ) 생화학분자생물학회 2021 BMB Reports Vol.54 No.8
In the tumor microenvironment, immune checkpoint ligands (ICLs) must be expressed in order to trigger the inhibitory signal via immune checkpoint receptors (ICRs). Although ICL expression frequently occurs in a manner intrinsic to tumor cells, extrinsic factors derived from the tumor microenvironment can fine-tune ICL expression by tumor cells or prompt non-tumor cells, including immune cells. Considering the extensive interaction between T cells and other immune cells within the tumor microenvironment, ICL expression on immune cells can be as significant as that of ICLs on tumor cells in promoting antitumor immune responses. Here, we introduce various regulators known to induce or suppress ICL expression in either tumor cells or immune cells, and concise mechanisms relevant to their induction. Finally, we focus on the clinical significance of understanding the mechanisms of ICLs for an optimized immunotherapy for individual cancer patients. [BMB Reports 2021; 54(8): 403-412]
문지현(Jihyun Moon),박재록(Jaerock Park),권순철(Soonchul Kwon),김재문(Jaemoon Kim) 한국방재학회 2023 한국방재학회논문집 Vol.23 No.3
Urbanization and climate change produce distortions in urban water circulation. This issue can be resolved using a stormwater management technique called Low Impact Development (LID), which mimics natural processes and restores the hydrological state as it was before development. This study aims to evaluate the performance of a LID facility and calculate the runoff reduction and delay effect. The test-bed is a green wall of the Korea GI & LID Center. Scenarios for 30 mm/hr, 50 mm/hr, and 70 mm/hr were set based on the percentile of rainfall events from 2012 to 2021 in Geumjeong-gu, Busan. By setting an impervious surface as the control group, runoff reduction was found to be 91%~94% of 30 mm/hr, 50 mm/hr, and 70 mm/hr. The total outflow time increased by 47, 88, and 58 minutes, respectively, demonstrating the effect of reduced runoff and delayed time. A storm water management model (SWMM) was constructed to evaluate this effect quantitatively. Verification and correction were done using the experiment results. R2 was 0.96~0.98 for the test and 0.93~0.94 for the correction. This paper thus verified the retention effectiveness performance of a green wall and analyzed its quantitative effect through a SWMM. The study findings can be used as a guideline to test parameter-wise hydrological performance of the model.
어머니의 자율성 지지가 유아의 정서적 유능성과 사회적 유능성에 미치는 영향
문지현(Jihyun Moon),신나나(Nana Shin) 한국아동학회 2017 아동학회지 Vol.38 No.6
Objective: The purpose of this study was to examine the relationships among maternal autonomy support, preschoolers’ executive function, and preschoolers’ emotional and social competence. In addition, the mediating role of preschoolers’ executive function between maternal autonomy support and preschoolers’ emotional and social competence was investigated. Methods: A total of 245 preschoolers (130 boys and 115 girls) and their mothers participated in this study. Data were collected through maternal reports. Results: First, maternal autonomy support was significantly related to preschoolers’ emotional and social competence. Second, maternal autonomy support was significantly related to preschoolers’ executive function. Third, preschoolers’ executive function was significantly related to emotional and social competence. Fourth, preschoolers’ executive function partially mediated the relationship between maternal autonomy support and preschoolers’ emotional and social competence. Conclusion: These results highlight the importance of executive function in attaining emotional and social competence during the preschool period.
디지털 파라코즘의 모방 세대, 영유아 영상 미디어에서 나타나는 스토리텔링에 의한 미디어 복제 프로세스와 표현 특성에 관한 연구
문지현(Jihyun Moon) 한국IT서비스학회 2020 한국IT서비스학회 학술대회 논문집 Vol.2020 No.1
밀레니얼 세대의 자녀 모모세대 영유아는 태어나면서부터 스마트 모바일을 접하고 이는 일상에서 놀이, 학습을 위한 디지털 공간이 되었다. 영유아 신체, 언어 발달이 미숙하지만, 일찍부터 모바일 환경에 노출이 되어 자극적인 콘텐츠에 접하게 된다. 이들에게서 보여지는 영상 미디어 플랫폼에서의 콘텐츠 소비 행태와 유아들을 위한 모바일 접근성의 실태를 조사하고, 국내외적으로 커져가는 키즈 콘텐츠 사업이 앞으로 유아의 전인적, 창의적인 발달을 위해서 고려해야할 디자인 설계를 UI(User Interface)와 미디어 플랫폼의 플라톤과 Ricouer(1983)의 미메시스(mimesis) 이론을 통해 미디어 문화의 생태학적 분석을 도출하고자 한다. 영유아 시기에 중요한 상상 놀이, 파라코즘의 현상을 디지털 영상 콘텐츠를 소비하는 플랫폼과 (뉴미디어 환경에서의) 영유아 놀이 활동의 관계에서 살펴보고, 쉽게 노출된 미디어 영상들의 반복, 재생되는 미디어 문화 특성을 규명하고자 한다.
해방 후 좌익계 여성운동의 방향과 한계: 잡지 『여성공론(女性公論)』을 중심으로
문지현 ( Jihyun Moon ) 이화사학연구소 2017 梨花史學硏究 Vol.0 No.54
After liberation, several women`s organizations were organized in South Korea and women`s movement was expanded. Shortly after liberation, women`s movement began with the establishment of `Founding Women`s Association`, a coalition of left and right wing women. This constitutional alliance was divided by ideological power and the left wing women formed `the Korean Women Alliance`.Yeoseonggongron is a magazine that shows claims and routes of female liberation movement of left wing women in the U. S. Military Government Period of Korea. This magazine is a left-wing women`s monthly magazine. It was launched on January 1, 1946, aiming at liberation and enlightenment of Korean women. Currently, only the first to fourth issues can be confirmed. It is a valuable historical sources that informs left-wing women`s claims and activities. Perceptions of women`s problems in Yeoseonggongron are shown in the following, At that time, women were discriminated against politically, economically, and sociall. Causes of such women`s problems were economic inequality. Thus, it was necessary to achieve class struggle and female liberation. It was argued that acquisition of suffrage or legal status was insufficient. Having equal economic conditions and economic rights with men was the condition for women`s liberation. Furthermore, the demand to reform the social system was different from the rightist women`s movement. In order to liberate women, contributors emphasized the development of women`s organization and enlightenment movement. On the other hand, awareness of women`s movement in this magazine showed limitation in that women could not escape from their traditional gender role in the family. In addition, it focused on women workers rather than female farmers. Threrfore,it showed a gap with the situation in South Korea.