• International Journal of Computer Science & Network Security
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• 제21권4호
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• pp.93-102
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• 2021

The world is facing an unprecedented economic, social and political crisis with the spread of COVID-19. The Corona Virus (COVID-19) and its global spread have resulted in declaring a pandemic by the World Health Organization. The deadly pandemic of 21st century has spread its wings across the globe with an exponential increase in the number of cases in many countries. The developing and underdeveloped countries are struggling hard to counter the rapidly growing and widespread challenge of COVID-19 because it has greatly influenced the global economies whereby the underdeveloped countries are more affected by its devastating impacts, especially the life of the low-income population. Information and Communication Technology (ICT) were particularly useful in spreading key emergency information and helping to maintain extensive social distancing. Updated information and testing results were published on national and local government websites. Mobile devices were used to support early testing and contact tracing. The government provided free smartphone apps that flagged infection hotspots with text alerts on testing and local cases. The purpose of this research work is to provide an in depth overview of emerging technologies and recent ICT developments to combat COVID-19 Pandemic. Finally, the author highlights open challenges in order to give future research directions.

• 한국농촌간호학회지
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• 제18권2호
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• pp.125-133
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• 2023

Purpose: This study aimed to understand and explore the experiences and meanings of life changes and loneliness caused by the coronavirus disease (COVID-19) among older people living in rural areas. Methods: This study adopted an individual interview approach. A total of 33 older adults were interviewed using semi-structured questions between October and December; 2020. The collected data were analyzed using thematic analysis. Results: Four main themes and ten sub-themes emerged. One main theme was "the never-ending anxiety of a changed world", the second theme was "disconnecting from the world through social distancing", the third theme was "working to overcome COVID-19", and forth "health is the most important thing in life." Conclusion: Based on the results of this study, we confirmed the urgent need for psycho-social support to relieve loneliness and social isolation of older people in rural areas during the spread of infectious diseases.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제16권6호
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• pp.1953-1972
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• 2022

The COVID-19 pandemic has resulted in a profound impact on large-scale gatherings throughout the world. Social distancing has become one of the most common measures to restrict the spread of the novel Coronavirus. Islamic pilgrimage attracts millions of pilgrims to Saudi Arabia annually. One of the mandatory rituals of pilgrimage is the symbolic stoning of the devil. Every pilgrim is required to perform this ritual within a specified time on three days of pilgrimage. This ritual is prone to congestion due to strict spatiotemporal requirements. We propose a pedestrian simulation model for implementing social distancing in the stoning ritual. An agent-based simulation is designed to analyze the impact of inter-queue and intra-queue spacing between adjacent pilgrims on the throughput and congestion during the stoning ritual. After analyzing several combinations of intra-queue and inter-queue spacings, we conclude that 25 queues with 1.5 meters of intra-queue spacing result in an optimal combination of throughput and congestion. The Ministry of Hajj in Saudi Arabia may benefit from these findings to manage and plan pilgrimage more effectively.

• International Journal of Internet, Broadcasting and Communication
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• 제14권3호
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• pp.85-90
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• 2022

In this study, keywords from representative online portal sites such as NAVER, Google, and Youtube were collected based on text mining analysis technique using TEXTOM to check the changes in the restaurant industry before and after COVID-19. The collection keywords were selected as dining out, food service industry, and dining out culture. For the collected data, the top 30 words were derived, respectively, through the refinement process. In addition, comparative analysis was conducted by defining data from 2018 to 2019 before COVID-19, and from 2020 to 2021 after COVID-19. As a result, 8272 keywords before COVID-19 and 9654 keywords after COVID-19, a total of 17926 keywords, were derived. In order for the food service industry to develop after the COVID-19 pandemic, it is necessary to commercialize the recipes of restaurants to revitalize the distribution of home-use food products that replace home-cooked meals such as meal kits. Due to the social distancing caused by COVID-19, the dining out culture has changed and the trend has changed, and it has been confirmed that the consumption culture has changed to eating and delivering at home more safely than visiting restaurants. In addition, it has been confirmed that the consumption culture of existing consumers is changing to a trend of cooking at home rather than visiting restaurants.

• 한국경제지리학회지
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• 제24권2호
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• pp.127-142
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• 2021

본 연구는 서울지역 COVID-19 확진자의 증가와 지하철 통행의 감소 변화에서 나타나는 특징을 파악하고, 이들 간의 상관관계에 근거하여 추출한 주성분을 바탕으로 지하철역을 군집 분류하고 군집별 특성을 분석하였다. 특히 COVID-19 확산 이전인 2019년부터 사회적 거리두기가 지속된 2020년까지 서울 지하철역별 시간대별, 주별, 월별 지하철 통행의 변화 패턴을 살펴보고, 통행 증가형과 감소형 역으로 구분한 후 감소형 중 상위 10분 위에 해당하는 역, 하위 10분위에 해당하는 역의 인구 및 토지이용 특성을 파악하였다. 분석 결과, COVID-19 확진과 지하철 통행은 서로 부(-)의 상관관계를 나타냈고, 지하철 통행과 역 배후지 토지이용 특성에 따라 서울 지하철체계를 구성하는 역들은 6개 유형으로 군집화되었다. 통행 감소 상위 10분위에 속하는 역은 낮 시간대 선택 통행의 분포가 높고, 역 배후지는 상업용 및 문화, 교육과 사회활동 관련 토지이용이 상대적으로 높아 향후 전염병 종료에 따른 지역 회복성도 매우 탄력적으로 반응할 것으로 전망된다.

• 대한두개안면성형외과학회지
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• 제22권2호
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• pp.99-104
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• 2021

Background: To fight the coronavirus disease 2019 (COVID-19) pandemic, many countries have implemented social distancing and lockdowns. We investigated the changes in the trauma patterns of emergency plastic surgeries in the midst of a pandemic. Methods: A retrospective review of the medical records of all patients treated for emergency plastic surgeries was performed at our hospital in Seoul. We conducted the analysis between March 1 and June 30, 2020, and compared the data obtained with that of the same period in 2019. We also investigated changes in trauma patterns according to the social distancing level from July 2020 to February 2021. Results: There was a total of 800 emergency plastic surgery patients from March to June 2020, which was less than the 981 in the corresponding period in 2019. The proportion of patients aged 7-17 years and ≥ 80 in 2020 showed a significant decrease. In 2020, patients presenting with facial trauma decreased and hand trauma, markedly laceration, increased significantly. In 2020, more injuries happened at home, whereas significantly fewer injuries happened on the streets. In 2020, slipping and sports injury decreased, whereas penetrating injury increased significantly. In the changes observed according to the social distancing level, there were significant differences in age classification, facial open wound, and the mechanism of injury. Conclusion: Social distancing has caused a change in emergency plastic surgeries. To ensure safe and appropriate treatment, strict epidemiologic workup and protective equipment are required.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• 제34권1호
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• pp.21-29
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• 2023

This paper reviews the global effect of the coronavirus disease 2019 (COVID-19) pandemic on the mental health of children and adolescents in South Korea, the U.S., Japan, and China. We reviewed research on deteriorated mental health, including increased suicide, suicidal thoughts, and self-harm. Various studies have shown that students' mental health issues, such as depression and anxiety, have worsened during the COVID-19 pandemic. Furthermore, the number of students who committed suicide has significantly increased in the U.S. and Japan. Factors such as prior mental health status, change in daily routine, reduced physical activity, excessive screen time, overuse of electronic devices, and reduced social support have been reported to have a significant effect. The chain of deteriorating mental health among the youth began at the onset of COVID-19, social distancing, and school closure. As youths began to stay at home instead of going to school, they lost opportunities to connect with their friends or teachers, who could provide support outside of their homes. Young people spent less time on physical activity and more time online, which damaged their sleeping schedule and daily routine. In preparing for the post-pandemic phase, we should thoroughly analyze the long-term effects of the pandemic on youth mental health, while simultaneously tackling current imminent issues.

• 한국응용과학기술학회지
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• 제40권3호
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• pp.496-506
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• 2023

본 연구는 COVID-19로 인한 사회적 거리두기를 경험한 대학생의 사회·정서적 고립감, 우울, 스마트폰 중독 간의 관계를 살펴보고 대학생의 스마트폰 중독에 영향을 주는 요인을 파악하기 위해 시도되었다. 본 연구에 참여한 대상자는 4개 대학교에 재학 중인 220명이며, 자료수집은 구글 폼으로 설문지를 구성하여 시행하였다. 자료 분석은 SPSS/WIN 28.0 프로그램을 이용하여 변수의 특성에 따라 통계적으로 분석하였다. 본 연구 결과, 대학생의 스마트폰 중독은 사회·정서적 고립감(r=.44, p<.001), 우울(r=.51, p<.001)과 유의한 양의 상관관계를 보였으며, 대학생의 스마트폰 중독에 영향을 주는 요인은 성별(β=.176, p=.001), 주말 스마트폰 사용 시간 7-9시간(β=.387, p=.001), 10-12시간(β=.313, p=.006), 12시간 이상(β=.299, p=<.001), 우울(β=.302, p<.001), 사회·정서적 고립감(β=.210, p=.004)이었다. 회귀모형은 통계적으로 유의하였으며 (F=15.81, p<.001) 모형의 설명력은 43% (adj R²=.43, p<.001)였다. 따라서 대학생의 스마트폰 중독을 예방하기 위해 사회·정서적 고립감과 우울을 감소시킬 수 있는 정신건강 증진 프로그램을 개발하여 활용할 필요가 있다.

• 한국항만경제학회지
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• 제39권2호
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• pp.195-204
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• 2023

사스, 신종 플루, 메르스 등 기존의 전염병은 코로나 19에 비해 산업적·경제적 파급력이 다소 낮았다고 할 수 있지만, 코로나 19는 많은 피해를 유발했다. 해운물류산업에도 코로나 19는 유례없는 변화와 충격을 주고 있다. 전대미문(前代未聞)의 코로나 19 팬데믹으로 해운물류산업은 기존과는 다른 방향으로 변화가 전개되었으며, 코로나 19는 해운물류산업에 많은 숙제를 던진다고 할 수 있다. 이 연구에서는 언론에서 지적하고 있는 컨테이너 해운경기의 호황 원인을 분석했다. 분석 결과, 공급 측면에서는 선사들이 IMO 환경규제에 대응하기 위해 계선을 단행한 것이 화근이 되어, 수요가 증가하더라도 '가동시킬 수 없는 선박'으로 말미암아 운임 상승을 초래한 측면이 있음을 발견하였다. 수요 측면에서는 사회적 거리두기가 상품 구매를 촉진해 수요 증가의 원인이 되었다는 주장에 대해서는 근거가 부족한 주장이라는 것을 밝혀내었다. 왜냐하면 사회적 거리두기와 운임 상승 간에 관계가 미약하기 때문이다.

• 급식외식위생학회지
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• 제1권1호
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• pp.37-44
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• 2020

The virus isolated from patients with severe pneumonia of unknown etiology in Wuhan City, Hubei province in China was termed SARS-CoV-2 and the World Health Organization (WHO) named the disease caused by this virus as coronavirus disease 2019 (COVID-19). The COVID-19 infection has spread rapidly and become a pandemic. In July 2020, there were 13.25 million infected patients and over 570,000 deaths worldwide, and 13,711 infected patients and 294 deaths were reported in South Korea. Since the primary mode of transmission of COVID-19 is through respiratory droplets, the importance of preventive measures, including social distancing, has become important in daily life. In response to the continuous spread of COVID-19, this study developed three guidelines for preventing COVID-19 for the food service industry including childcare centers, institutional foodservices and restaurants by the integration of the manual of controlling foodborne illness. These are included the COVID-19 prevention action methods for food deliverers, for food service administrator, for foodservice works and for customers. All guidelines were designed for easy understanding using illustrations and have been systematically explained subject wise. Thus, these COVID-19 prevention guidelines can be appropriately applied depending on the specific situation and workplace. In addition, they are worthy as educational materials that contribute to the food safety.