• 무역학회지
• /
• 제47권3호
• /
• pp.37-55
• /
• 2022

This paper takes the factors influencing consumers' purchase of organic agricultural products before and after the COVID-19 epidemic as the starting point, decomposes Chinese consumers' purchase behavior of organic agricultural products into questionnaire surveys before and after the COVID-19 epidemic with the help of the theory of planned behavior, and builds structural equation regression models to compare and analyze them respectively. The study investigates whether this change has any impact on consumers' purchasing behavior of organic agricultural products, and proposes rationalized countermeasures from different perspectives based on the results of the study. To this end, this study collected 219 valid questionnaires by combing through domestic and international literature and referring to scholars' mature scales for measurement. The results showed that consumers' attitudes, subjective norms and perceptual behavioral control of organic agricultural products before and after the COVID-19 epidemic had a significant positive effect on consumers' willingness to purchase; however, it can be seen that the intervention of the COVID-19 epidemic event has significantly improved consumers' attitudes, subjective norms and perceptual behavioral control of organic agricultural products.

• East Asian Economic Review
• /
• 제27권3호
• /
• pp.179-211
• /
• 2023

This paper investigates the relationship between the spread of COVID-19 and time preference. In contrast to previous studies that compared time preferences before and during the pandemic, this study estimates time preferences during the COVID-19 period using eight surveys conducted over two years. Additionally, a regression analysis was conducted on the number of new COVID-19 cases and the time elapsed since the outbreak, with estimated time preference as the dependent variable. Despite a small sample size, statistically significant results were obtained, showing that as the number of new cases increased, time preference also increased. However, this effect diminished over time and disappeared by the end of 2021 in Japan. This may be due to the public's growing familiarity with the risks of COVID-19 and the availability of vaccines and treatments. Despite a significant increase in new cases in 2022, time preference was lower than immediately after the outbreak, and this was reflected in private investments. Immediately after the outbreak of COVID-19, private investments decreased by 12% compared to the previous year, but the investments are returning in 2022 despite the surge in the number of cases. The trend of time preference explains the trend of Japanese private investments very well.

• Journal of Information Processing Systems
• /
• 제20권2호
• /
• pp.239-251
• /
• 2024

Coronavirus disease 2019 (COVID-19) has severely curtailed travelers' willingness to carpool and complicated the psychological processing system of travelers' carpooling decisions. In the post-COVID-19 era, a two-stage decision model under dynamic decision scenarios is constructed by tracking the psychological states of subjects in the face of multi-scenario carpooling decisions. Through a scenario experiment method, this paper investigates how three psychological variables, travelers' psychological distance to COVID-19, anticipated regret, and experienced regret about carpooling decisions, affect their willingness to carpool and re-carpool. The results show that in the initial carpooling decision, travelers' perception gap of anticipated regret positively predicts carpooling willingness and partially mediates between psychological distance to COVID-19 and carpooling willingness; in the re-carpooling decision, travelers' perception gap of anticipated regret mediates in the process of experienced regret influencing re-carpooling willingness; the inhibitory effect of experienced regret on carpooling in the context of COVID-19 is stronger than its facilitative effect on carpooling willingness. This paper tries to offer a fact-based decision-processing system for travelers.

• Journal of Ginseng Research
• /
• 제48권2호
• /
• pp.113-121
• /
• 2024

Since its outbreak in late 2019, the Coronavirus disease 2019 (COVID-19) pandemic has profoundly caused global morbidity and deaths. The COVID-19 pandemic caused by Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) has major complications in cardiovascular and pulmonary system. The increased rate of mortality is due to delayed detection of certain biomarkers that are crucial in the development of disease. Furthermore, certain proteins and enzymes in cellular signaling pathways play an important role in replication of SARS-CoV-2. Most cases are mild to moderate symptoms, however severe cases of COVID-19 leads to death. Detecting the level of biomarkers such as C-reactive protein, cardiac troponin, creatine kinase, creatine kinaseMB, procalcitonin and Matrix metalloproteinases helps in early detection of the severity of disease. Similarly, through downregulating Renin-angiotensin system, interleukin, Mitogen-activated protein kinases and Phosphoinositide 3-kinases pathways, COVID-19 can be effectively controlled and mortality could be prevented. Ginseng and ginsenosides possess therapeutic potential in cardiac and pulmonary complications, there are several studies performed in which they have suppressed these biomarkers and downregulated the pathways, thereby inhibiting the further spread of disease. Supplementation with ginseng or ginsenoside could act on multiple pathways to reduce the level of biomarkers significantly and alleviate cardiac and pulmonary damage. Therefore, this review summarizes the potential of ginseng extract and ginsenosides in controlling the cardiovascular and pulmonary diseases by COVID-19.

• 한국문헌정보학회지
• /
• 제55권3호
• /
• pp.303-319
• /
• 2021

본 연구의 목적은 전 세계적으로 대유행을 하고 있는 코로나19 상황과 관련 하여 국내 의학도서관의 정보서비스 현황을 조사하고, 의학도서관 사서를 대상으로 코로나19 상황에 대한 인식이 관련 정보서비스를 제공하는데 있어 어떠한 영향을 미치는지에 대하여 알아보고자 하였다. 이를 위해 국내 의학도서관 홈페이지를 통한 코로나19 정보서비스 여부에 관현 현황을 조사하였다. 그리고 코로나19의 상황인식 정도를 파악하기 위하여 Grunig의 상황이론을 적용하여, 문제인식, 제약인식, 관여도에 대한 인식의 정도에 따라 네 단계의 사서 유형을 분류하고, 3가지 인식이 코로나19 관련 정보서비스에 어떠한 영향을 주는지에 대하여 분석하였다. 그 결과, 국내 의학도서관 144개 기관 중 25개 기관만 코로나19 관련 정보서비스를 제공하고 있었고. 도서관의 정보제공의 주체인 사서의 경우 코로나19 상황에 대하여 문제인식과 관여도가 높고, 제약인식은 낮았으며, 정보제공 수준은 매우 적극인 것을 알 수 있었다. 그리고 제약인식만이 코로나19 관련 정보서비스를 제공함에 있어 유의미한 영향을 주는 것으로 나타났다. 향후 정보원이 확보된 시기의 추가적인 연구와 사서의 인식이 도서관 운영에 어떤 영향을 주는지에 대한 후속 연구도 제안하였다.

• 정보처리학회논문지:소프트웨어 및 데이터공학
• /
• 제12권9호
• /
• pp.387-398
• /
• 2023

코로나 19 유행은 인류 생활 방식과 패턴에 큰 영향을 주었다. 코로나 19는 침 방울(비말)은 물론 공기를 통해서도 감염되기 때문에 가능한 대면 접촉을 피하고 많은 사람이 가까이 모이는 장소는 피할 것을 권고하고 있다. 코로나 19 환자와 접촉했거나 코로나 19 환자가 발생한 장소에 있었던 사람이 코로나 19에 감염되었을 것을 염려한다면 구글에서 코로나 19 증상을 찾아볼 것이라고 충분히 예상해 볼 수 있다. 본 연구에서는 과거 독감 감시와 관리에 중요 역할을 했었던 구글 트렌드(Google Trends)를 다시 소환하고 코로나 19 확진자수 데이터와 결합하여 미래의 코로나 19 확진자수를 예측할 수 있을지 딥러닝 모델(DNN & LSTM)을 사용한 탐색적 데이터 분석을 실시하였다. 특히 이 연구에 사용된 검색어 빈도 데이터는 공개적으로 사용할 수 있으며 사생활 침해의 우려도 없다. 심층 신경망 모델(DNN model)이 적용되었을 때 한국에서 가장 많은 인구가 사는 서울(960만 명)과 두 번째로 인구가 많은 부산(340만 명)에서는 검색어 빈도 데이터를 포함하여 예측했을 때 더 낮은 오류율을 기록했다. 이와 같은 분석 결과는 검색어 빈도 데이터가 일정 규모 이상의 인구수를 가진 도시에서 중요한 역할을 할 수 있다는 것을 보여주는 것이다. 우리는 이와 같은 예측이 더 강력한 예방 조치의 실행이나 해제 같은 정책을 결정하는데 근거 자료로 충분히 사용될 수 있을 것으로 믿는다.

• Korean Journal of Radiology
• /
• 제23권1호
• /
• pp.150-152
• /
• 2022

• 한국콘텐츠학회논문지
• /
• 제22권4호
• /
• pp.609-619
• /
• 2022

본 연구는 특히 최근 높은 감염율을 보이고 있는 코로나19 감염에 대하여 20·30대를 중심으로 코로나19 예방행동에 영향을 미치는 요인을 살펴보고자, 수도권에 거주하는 20·30대 성인 남녀 210명을 대상으로 구조화된 설문지를 통해 2021년 7월 10일부터 19일까지 온라인 설문조사를 실시하였다. 본 연구 결과 첫째, 건강신념과 코로나19 예방행동 간의 관계를 분석한 결과 건강신념의 지각된 심각성과 지각된 취약성, 지각된 장애, 지각된 이익이 높을수록 코로나19 예방행동을 잘 하는 것으로 나타났다. 둘째, 건강신념의 지각된 이익이 높을수록 주관적 규범을 잘 준수하는 것으로 나타났다. 셋째, 주관적 규범과 지각된 행동통제력이 높을수록 코로나19 예방행동을 잘 하는 것으로 나타났다. 넷째, 건강신념과 코로나19 예방행동과의 관계에서 주관적 규범과 지각된 행동통제력은 매개효과가 있는 것으로 나타났다.

• 중환자간호학회지
• /
• 제15권2호
• /
• pp.39-49
• /
• 2022

Purpose : This study investigated coronavirus disease-19 (COVID-19) related stress, resilience, and organizational commitment, and determined the factors influencing nurses' organizational commitment at an infectious disease hospital of COVID-19. Methods : A cross-sectional descriptive survey was conducted with 138 nurses. Data analysis, including descriptive statistics, independent t-tests, one-way ANOVA, Pearson's correlations, and multiple regression analysis, were performed using SPSS 26.0 program. Results : Factors influencing organizational commitment included resilience (𝛽=0.31, p<.001), position (𝛽=0.31, p<.001), COVID-19 related stress (𝛽=-0.26, p<.001), and COVID-19 nursing period (𝛽=-0.19, p=.012). These variables explained 29.6% of the organizational commitment. Conclusion : In order to enhance the organizational commitment of nurses in infectious disease hospitals of COVID-19, active program development and intervention are required at the organizational level to improve nurses' resilience and relieve stress related to nursing infectious disease patients..

• 한국학교보건학회지
• /
• 제36권3호
• /
• pp.103-112
• /
• 2023

Purpose: The COVID-19 pandemic, which emerged in late 2019, had a profound impact on global public health and disrupted the daily lives of people worldwide. Particularly, university students faced a challenging situation as their university life underwent a drastic transformation due to long-term remote learning and isolation measures. This study aimed to investigate the relationship between changes in daily life during the 2020 COVID-19 pandemic and depressive symptoms among university students aged between 19 and 29 in Korea. Methods: We analyzed data from the nationally representative 2020 Community Health Survey (CHS). Among the 229,269 participants, 9,279 university students aged 19-29, either enrolled or on leave, were selected. After excluding 401 cases with missing values, the final sample comprised 8,878 individuals. Using multivariate logistic regression with a complex sample design, we explored the association between daily life changes during the COVID-19 pandemic and depressive symptoms. Results: Changes in daily life during the COVID-19 pandemic was associated with depressive symptoms in Korean university students aged 19 to 29, even after adjusting for sociodemographic characteristics, health-related factors, and COVID-19-related aspects (OR=1.28, 95% CI=1.09~1.50). Conclusion: Our study suggests that when examining the impact of COVID-19 on health issues, it is crucial to consider the changes in daily life caused by the pandemic. These findings can provide insights into the psychological well-being of university students during times of crisis.