• 제목/요약/키워드: covid19

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대규모 빅데이터 분석 기반 COVID-19 Pandemic 분석결과 (Analysis of COVID-19 Pandemic based on Massive Big Data Analysis)

  • 김나현;오하영
    • 한국정보통신학회논문지
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    • 제25권4호
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    • pp.495-500
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    • 2021
  • 본 연구의 목적은 본 논문의 목적은 최근 확산되고 있는 코로나바이러스감염증-19로 인한 위기를 국내 뉴스 빅데이터를 활용하여 규명하는 것이다. 본 논문은 COVID-19로 인한 위기와 관련된 언론기사들을 한국언론진흥재단의 뉴스 빅데이터 분석 시스템 '빅카인즈(BIGKinds)'를 활용하여 분석하였다. 본 논문에서는 약 10개월의 기간을 설정한 후, '코로나'와 '위기' 키워드를 중심으로 총 54개의 언론사의 관련기사들을 추출하였다. '코로나'와 '위기' 두 키워드 간의 상관계수를 파악하고, 연관어 분석을 통해 경제, 사회, 국제, 문화 각 대표 카테고리 별로 COVID-19로 인해 어떤 위기를 맞고 있는지 파악하고자 한다. COVID-19 사태는 경제, 사회 등 모든 부분에 큰 타격을 주고 있는 만큼 빅데이터를 활용한 본 논문은 COVID-19 사태 위기 극복을 위한 기초자료로 활용될 수 있을 것으로 기대된다.

BDI와 CCFI 및 BDI와 SCFI 운임지수 사이의 변동성 파급 효과 (Volatility Spillover Effects between BDI with CCFI and SCFI Shipping Freight Indices)

  • 이몽화;김석태
    • 무역학회지
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    • 제48권1호
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    • pp.127-163
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    • 2023
  • 본문에서는 실증분석 부분을 두 시기로 나누어 COVID-19 전후에 해운지수 간의 변동성 파급효과 차이를 비교 분석하고자 하였다. 코로나19 전후에 해운지수 간의 평균 파급효과 및 지수 관계를 비교하기 위해 VAR 모델에 구축된 공적분 분석과 Granger 인과관계 테스트를 활용하였다. 또한, 본 연구에서는 해운지수가 단기적으로 자신의 충격에 대한 반응과 한 지수가 다른 지수에 대한 충격을어떻게 반영하는지 밝히기 위해서 충격반응함수 및 예측 오차 분산분해를 활용하였다. COVID-19 전염병 이전에는 BDI 해운지수가 CCFI 해운지수에 미치는 관계가 존재하지만 COVID-19 이후에는 BDI지수와 CCFI지수 사이에 뚜렷한 lead-lag 관계가 없다는 것으로 나타났다. COVID-19 전염병 이전에는 BDI지수는 SCFI지수의 변화를 설명하고 있고, 코로나19 확산 이후에는 SCFI 지수가 BDI 지수를 앞서고 있다는 것을 보여주고 있다. 또한 VAR-BEKK-GARCH 모델을 활용하여 COVID-19 전후 벌크 화물 해운시장 및 컨테이너 해운시장 간의 변동성 파급효과를 분석하였을 때 코로나19 이전의 BDI지수는 CCFI지수와 SCFI 지수에 대한 단발성 변동성 파급효과를 보였고 COVID-19 이후에도 BDI 지수의 변동성이 CCFI 지수에 여전히 영향을 미친다는 것을 보여준다. 하지만 코로나19 확산 이후에는 BDI지수와 SCFI지수 간의 변동성 파급 관계가 존재하지 않는 것으로 나타났다.

의료종사자, 환자, 일반인의 코로나19 사회적 거리두기 행동 지침에 대한 인식과 수행 비교 (A Comparison of the Perception of and Adherence to the COVID-19 Social Distancing Behavior Guidelines among Health Care Workers, Patients, and General Public)

  • 허연정;남소희;정재심;김연희
    • Journal of Korean Biological Nursing Science
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    • 제23권1호
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    • pp.55-63
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    • 2021
  • Purpose: To identify the differences in perception of and adherence to the COVID-19 social distancing behavior guidelines among health care workers, patients, and the general public and to use them to prevent the spread of COVID-19. Methods: From October 16 2020 to November 30, 2020, a survey was conducted among 85 health care workers, 85 patients, and 82 general public regarding the perception of and adherence to the COVID-19 social distancing behavior guidelines. Results: Patients scored significantly higher than the general public in the adherence to the COVID-19 social distancing behavior guideline, and there was no difference between health care workers and general public, and patients and health care workers. In the multivariate analysis, the factors that influence the adherence of the COVID-19 social distancing behavior guide were found in women and the perception of the COVID-19 social distancing behavior guideline. Conclusion: In order to promote the implementation of the COVID-19 social distancing behavior guideline, it is necessary to increase the perception of the COVID-19 social distancing behavior guideline and provide additional education in men. It is necessary to investigate the reason behind why men have low adherence to the COVID-19 social distancing behavior guideline.

COVID-19 백신 접종 전후 건강 불안감과 스트레스와 예방적 건강행위의 차이: 수도권 지역에 거주하는 COVID-19 백신 접종을 완료한 대학생을 중심으로 (Differences in COVID-19 Related Anxiety, Stress and Preventive Health Behavior before and after the Covid-19 Vaccination: Focusing on College Students Who have Completed the COVID-19 Vaccination in the Metropolitan Area)

  • 윤다희;원선미;이윤선;이지윤;이고운
    • 한국농촌간호학회지
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    • 제17권2호
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    • pp.59-66
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    • 2022
  • Purpose: This study was conducted to provide basic data for college students living in the Seoul metropolitan area to prevent the spread of infectious diseases and explore countermeasures by identifying the degree of difference with anxiety, stress, and preventive health behavior before and after the COVID-19 vaccination. Methods: Data were collected from the subjects of the study, 192 college students aged 19 to 29 who completed the COVID-19 vaccination in the Seoul metropolitan area. The data were analyzed with the correlation, paired t-test, and independent t-test using the SPSS 27.0. Results: Preventive health behavior, health anxiety, and stress showed the positive correlation before and after the COVID-19 vaccination among the college students. After the COVID-19 vaccination, COVID-19 related stress including fear of infection (d=-0.11±0.09), and difficulty in social distancing (d=-0.21±0.08), and health behavior (d=-0.06±0.44) decreased compared to before the vaccination. Conclusion: Health education and health policies are required to continue preventive health behavior even after the vaccination.

Changes in dietary habits and chronic diseases before and after COVID-19 by regions using data from the 2018-2020 Korea Community Health Survey and Consumer Behavior Survey for Foods: a cross-sectional study

  • Surim Park;Eun-hee Jang;Seungmin Lee
    • 대한지역사회영양학회지
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    • 제28권2호
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    • pp.124-140
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    • 2023
  • Objectives: This study examined the changes in dietary habits, the prevalence of chronic diseases, and mental health problems in the regional areas of the Republic of Korea before and after the COVID-19 pandemic to provide evidence of the status of regional health inequalities. Methods: This study analyzed Korean adults aged 19 or older who participated in the Korea Community Health Survey (n = 686,708) and Consumer Behavior Survey for Foods (n = 19,109) from 2018 to 2020. The participants were classified according to their residence area (Seoul metropolitan area, Metropolitan cities, Provinces); 2018-2019 were defined as before COVID-19, and 2020 as after COVID-19. The dietary behaviors, chronic diseases, and mental health problems were measured using a self-report questionnaire. Results: After COVID-19, the eating-out usage rate in the Seoul metropolitan area and Provinces decreased compared to before COVID-19 (P < 0.001), and when responding that they eat out, the frequency of eating out with household members in the Seoul metropolitan area increased (P = 0.024). The deliveries/takeout usage rate in the Provinces decreased after COVID-19 compared to before (P < 0.001). After COVID-19, the prevalence of obesity decreased in all regions (P < 0.001), and the prevalence of hypertension increased significantly in the Provinces (P = 0.015). The prevalence of diabetes mellitus increased continuously before and after COVID-19 in all regions (P < 0.002). High-risk subjective stress levels increased significantly in the Seoul metropolitan area (P < 0.001), and sleep duration significantly increased in all regions (P < 0.001). Major depressive disorder was reduced significantly in Metropolitan cities (P = 0.042) and Provinces (P < 0.001). Conclusions: After the COVID-19 pandemic, the prevalence of chronic diseases and mental health problems showed regional differences along with changes in dietary habits. It is necessary to reflect the regional differences in dietary habits in future policies resolving regional health inequalities.

국내 5-11세 소아의 코로나19 백신 접종에 대한 델파이 연구 (Delphi Survey for COVID-19 Vaccination in Korean Children Between 5 and 11 Years Old)

  • 최영준;이영화;최재홍
    • Pediatric Infection and Vaccine
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    • 제29권1호
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    • pp.37-45
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    • 2022
  • 본 델파이 연구에서는 5-11세 소아청소년의 코로나19 백신 접종과 관련하여 소아청소년 감염 분과 전문의와 코로나19 백신 전문가들을 대상으로 온라인 설문 조사를 시행하였다. 총 20문항에 대해 두 라운드 동안 각각 46명, 38명이 설문에 응답하였다. 패널들은 5-11세 소아청소년들이 코로나19에 쉽게 감염되지만 중증 진행의 위험도는 여전히 낮은 것으로 판단하였고, 만성 질환을 가진 소아는 중증 진행 위험도가 약간 있는 것으로 평가하였다. 코로나19 백신은 5-11세 소아에게 대체로 위험하지 않다고 응답하였고, 백신 접종의 기대 이익과 잠재적인 위해에 대한 비교는 대체적으로 중립적인 견해를 보였다. 또한 현재 소아에게 유일하게 허가된 mRNA 백신 플랫폼은 지속 가능하겠지만 소아에게는 재조합 단백질 플랫폼 백신이 추후 가장 적절할 것으로 평가되었다. 최종적으로 5-11세 소아에게 코로나19 예방 접종 권장에 대해서는 중립적인 입장을 보였다. 이에 모든 소아청소년들에게 일괄적인 접종 보다는 개별화된 선별 접종이 더 바람직할 것으로 보이며, 소아의 코로나19 백신 접종에 대한 과학적 근거 마련을 위한 지속적인 모니터링이 필요할 것으로 보인다.

A Review of Recent Trend of COVID-19 Infection and Correlation with Pulmonary Function

  • Kim, Min Woo
    • 대한의생명과학회지
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    • 제26권3호
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    • pp.127-135
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    • 2020
  • Coronavirus is generally known to cause minor respiratory diseases in animals and humans. However, some coronavirus genus is reported to cause animal-to-human interspecies infection. Since the end of 2019, a new type of coronavirus (COVID-19) infection is spreading rapidly throughout the world, leading to the declaration of the pandemic by the World Health Organization (WHO). Despite various clinical studies to counter COVID-19 infection, the total confirmed cases and death rates are still accumulating. To break down this new threat, we should pay attention to newly revealed information based on scientific facts. In this review, we introduced the clinical characteristics, diagnostic methods, and treatment of patients infected with COVID-19. Moreover, we highlighted the correlation between COVID-19 severity and patients with underlying diseases. Potential risks associated with COVID-19 can be differed depending on the condition of patients and can cause pulmonary complications. Therefore, lung capacity exams are expected to help predict the progression of the disease along with previously established detection methods such as molecular diagnostics and immunoassay. Although physiological research hasn't yet been emphasized to evaluate COVID-19 infection, this review is expected to be valuable to give new inspiration to deal with COVID-19 which might strike again in the future.

The Effect of COVID-19 Pandemic on Stock Market: An Empirical Study in Saudi Arabia

  • ALZYADAT, Jumah Ahmad;ASFOURA, Evan
    • The Journal of Asian Finance, Economics and Business
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    • 제8권5호
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    • pp.913-921
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    • 2021
  • The objective of the study is to investigate the impact of the COVID-19 pandemic on Saudi Arabia stock market. The study relied on the data of the daily closing stock market price index Tadawul All Share Index (TASI), and the number of daily cases infected with COVID-19 during the period from March 15, 2020, to August 10, 2020. The study employs the Vector Auto-Regressive (VAR) model, the Impulse Response Function (IRF) and Autoregressive Conditional Heteroscedasticity (ARCH) models. The results of the correlation matrix and the Impulse Response Function (IRF) show that stock market returns responded negatively to the growth in COVID-19 infected cases during the pandemic. The results of ARCH model confirmed the negative impact of COVID-19 pandemic on KSA stock market returns. The results also showed that the negative market reaction was strong during the early days of the COVID-19 pandemic. The study concluded that stock market in KSA responded quickly to the COVID-19 pandemic; the response varies over time according to the stage of the pandemic. However, the Saudi government's response time and size of the stimulus package have played an important role in alleviating the impacts of the COVID-19 pandemic on Saudi Arabia Stock Market.

COVID-19의 유행으로 인한 스트레스가 대학생의 삶의 질에 미치는 영향: 가족건강성의 조절효과 (The Effect of Stress Caused by the Spread of COVID-19 on the Quality of Life in University Students: The Moderating Effect of Family Health)

  • 김현경
    • 한국학교ㆍ지역보건교육학회지
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    • 제22권3호
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    • pp.17-27
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    • 2021
  • Objectives: As COVID-19 drags on, university students experience more stress and feel more anxious about their studies and career plans. Against the backdrop, this study aims to analyze the moderating effect of family health on the relationship between the spread of COVID-19 and the quality of life in university students. Methods: In order to achieve the purpose of this study, the results of an online survey performed with 216 university students in cities K and D were analyzed using frequency analysis, factor analysis, correlation analysis, regression analysis, and moderating effect analysis. Results: It was found that COVID-19 stress had a significant negative effect on the quality of life in university students, while family health showed a significant positive effect. In addition, the moderating effect of family health was statistically significant on the relationship between COVID-19 stress and the quality of life in university students. Conclusions: This study found that family health plays an essential role as a safety net in reducing stress and improve the quality of life in university students amid the social crisis of the COVID-19 pandemic. In this regard, it is required to develop various programs for communication with parents, including parent-child communication techniques.

Brief Summary on Nursing Studies regarding COVID-19

  • Hyun, Sookyung
    • International Journal of Advanced Culture Technology
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    • 제9권2호
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    • pp.47-55
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    • 2021
  • The coronavirus disease 2019 (COVID-19) pandemic continuously influences on the health and well-being of people and communities worldwide. The purpose of this study was to explore the published research articles in the fields of nursing and health during the COVID-19 pandemic. The research design is an exploratory study. Samples are the abstracts of the articles from a literature database, PubMed, that were published from January 1st, 2020 to April 15th, 2021. We used a MeSH term, 'nursing' and "COVID-19" to retrieve articles that are related to COVID-19. Five hundred and fifty-five articles were retrieved. Two hundred and sixteen articles were excluded as they were not met the inclusion criteria. The total number of articles used in this study was three hundred and thirty-nine. The average number of articles published during the data collection period was 21.9. Seven topics were discovered from the abstracts of the articles: COVID-19 management and guidance; Perinatal COVID-19 and breastfeeding; Nurse; Health service and support; Patient care; Research; and Education and experience. This study revealed some interesting topics from the articles related to COVID-19 and provided some sense of research areas that may be interesting and allow us to develop important research questions about nursing science and nursing practice.