• Title/Summary/Keyword: COVID-Pandemic

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Analyzing Students' Non-face-to-face Course Evaluation by Topic Modeling and Developing Deep Learning-based Classification Model (토픽 모델링 기반 비대면 강의평 분석 및 딥러닝 분류 모델 개발)

  • Han, Ji Yeong;Heo, Go Eun
    • Journal of the Korean Society for Library and Information Science
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    • v.55 no.4
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    • pp.267-291
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    • 2021
  • Due to the global pandemic caused by COVID-19 in 2020, there have been major changes in the education sites. Universities have fully introduced remote learning, which was considered as an auxiliary education, and non-face-to-face classes have become commonplace, and professors and students are making great efforts to adapt to the new educational environment. In order to improve the quality of non-face-to-face lectures amid these changes, it is necessary to study the factors affecting lecture satisfaction. Therefore, This paper presents a new methodology using big data to identify the factors affecting university lecture satisfaction changed before and after COVID-19. We use Topic Modeling method to analyze lecture reviews before and after COVID-19, and identify factors affecting lecture satisfaction. Through this, we suggest the direction for university education to move forward. In addition, we can identify the factors of satisfaction and dissatisfaction of lectures from multiangle by establishing a topic classification model with an F1-score of 0.84 based on KoBERT, a deep learning language model, and further contribute to continuous qualitative improvement of lecture satisfaction.

Asunaprevir, a Potent Hepatitis C Virus Protease Inhibitor, Blocks SARS-CoV-2 Propagation

  • Lim, Yun-Sook;Nguyen, Lap P.;Lee, Gun-Hee;Lee, Sung-Geun;Lyoo, Kwang-Soo;Kim, Bumseok;Hwang, Soon B.
    • Molecules and Cells
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    • v.44 no.9
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    • pp.688-695
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    • 2021
  • The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic has become a global health concern. Various SARS-CoV-2 vaccines have been developed and are being used for vaccination worldwide. However, no therapeutic agents against coronavirus disease 2019 (COVID-19) have been developed so far; therefore, new therapeutic agents are urgently needed. In the present study, we evaluated several hepatitis C virus direct-acting antivirals as potential candidates for drug repurposing against COVID-19. Theses include asunaprevir (a protease inhibitor), daclatasvir (an NS5A inhibitor), and sofosbuvir (an RNA polymerase inhibitor). We found that asunaprevir, but not sofosbuvir and daclatasvir, markedly inhibited SARS-CoV-2-induced cytopathic effects in Vero E6 cells. Both RNA and protein levels of SARS-CoV-2 were significantly decreased by treatment with asunaprevir. Moreover, asunaprevir profoundly decreased virion release from SARS-CoV-2-infected cells. A pseudoparticle entry assay revealed that asunaprevir blocked SARS-CoV-2 infection at the binding step of the viral life cycle. Furthermore, asunaprevir inhibited SARS-CoV-2 propagation in human lung Calu-3 cells. Collectively, we found that asunaprevir displays broad-spectrum antiviral activity and therefore might be worth developing as a new drug repurposing candidate for COVID-19.

A Study of AR Art Exhibitions in a Post-COVID World (포스트 코로나 시대의 AR(증강현실)전시 유형 연구)

  • Yun, Kusuk
    • The Journal of the Korea Contents Association
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    • v.21 no.10
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    • pp.264-273
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    • 2021
  • To study how digital content can be effectively developed and transformed in a post-COVID world in which the normal operations of museums have been disrupted, this paper analyzes the rapid development and limitations of VR exhibitions and proposes, as an alternative, the development of AR exhibitions. Studying VR/AR exhibitions that ran before and after COVID-19, this paper finds that VR, on the one hand, translates physical objects into digital video, which lacks aesthetic depth, and encounters operational problems originated by devices. By using mobile devices that are widely distributed and convenient to use, AR exhibitions can, on the other hand, be divided into three types: "museum-specific exhibitions" can present digital content in a specific indoor space, while "place-specific exhibitions" can be used in open outdoor spaces. The "non-place-specific exhibitions", can, as third type, combine digital content with printed material sent by postal mail. Among these three types, the specific/unspecified place type shows the highest "uncontact effect," which can suggest the best direction for effective museum content development in the pandemic era.

Comparison of Domestic and International Government Policies in Pandemic Circumstances and Crises: Based on COVID-19, SARS, MERS (펜데믹 상황시 정부의 대응 정책 비교: 코로나-19, 사스, 메르스를 중심으로)

  • Kim, Suk-Man;Park, Sang-Yong;Lee, Min-Woo;Kang, Chul-Woong
    • Journal of the Korean Society of Physical Medicine
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    • v.16 no.1
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    • pp.123-141
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    • 2021
  • PURPOSE: Focusing on the factors that influence the infectious disease emergency response policy (approached by dividing the factors into health policy management and economic policies), both SARS and MERS cases were based on the legal system, manpower, and budget, but there has not been enough learning from the epidemic. This study focused on infectious disease emergency governance, which various studies have neglected despite its social and academic importance. METHODS: The research is based on an analysis of SARS, MERS, and COVID-19 and compares global policies. In this study, infectious disease emergency governance was divided into health policy management and economic factors. This study focused on planning and leadership before and after the outbreak of infectious diseases and how cooperation was achieved to monitor and respond to infectious diseases successfully. RESULTS and CONCLUSION: The limit of this study was that COVID-19 is a currently ongoing infectious disease with high uncertainty. Because it is an ongoing problem, only some data and statistics are reflected, and many limitations prevent a proper comparison under the same criteria as other infectious diseases. In addition, because continuous changes are expected, there is also room for infectious diseases to develop in a completely different pattern from the current situation, and continuous research must be accompanied in the future.

Dietary life and mukbang- and cookbang-watching status of university students majoring in food and nutrition before and after COVID-19 outbreak

  • Kang, Hyunjoo;Yun, Sowon;Lee, Hongmie
    • Journal of Nutrition and Health
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    • v.54 no.1
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    • pp.104-115
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    • 2021
  • Purpose: With increased time spent at home due to prolonged online classes, this study sought to determine how the coronavirus disease 2019 (COVID-19) pandemic has impacted the mukbang- and cookbang-watching patterns and dietary life of college students. Methods: All students majoring in food and nutrition (FN) at a college in Gyeonggi, Korea, participated in the survey in April 2019 (M/F = 36/106) and June 2020 (M/F -37/130) and data were analyzed using SPSS 26.0. Results: Compared to students responding in 2019, those in 2020 reported more frequently eating alone (p < 0.01) and cooking (p < 0.01), and evaluated their diets better regarding pleasant mealtimes atmosphere (p < 0.05), moderation in drinking (p < 0.05), and not consuming excessively delivery foods (p < 0.001), processed foods (p < 0.01), foods with animal fat (p < 0.01), salty foods (p < 0.01), and sweets (p < 0.01). Although the proportion of respondents who answered that they watched mukbang and cookbang at least occasionally did not change, greater proportions of respondents reported watching both genres frequently (p < 0.001, respectively) and spending less time/day in watching mukbang (p < 0.05) in 2020 vs. 2019. While they evaluated the effect of mukbang- and cookbang-watching on overall diet similarly, the proportion of respondents that reported feeling as though mukbang-watching prompted them to eat more of less-desirable foods decreased from 54.3% to 41.5% (p < 0.05). Diet improvement of participants due to COVID-19 resulted in that the association between frequent mukbang-watching and unhealthier dietary habits in 2019 was not shown in 2020. Conclusion: Our results suggest that the prolonged at-home stays due to COVID-19 might have improved many aspects of diet and decreased undesirable effect of frequent mukbang-watching in case of college students majoring in FN.

A Study on the Current Status and Improvement of Online Classes for Students with Developmental Disabilities during the COVID-19 Pandemic -in chungbuk- (코로나19 상황 속 발달 장애 학생의 온라인 학습 실태와 개선방안 -충북지역을 중심으로-)

  • Kim, Hyun-Jin
    • The Journal of the Korea Contents Association
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    • v.21 no.6
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    • pp.350-358
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    • 2021
  • The purpose of this study is to analyze the status of rights for online learning of students with developmental disabilities in the COVID-19 situation and suggest plans to promote the rights focusing on parents with children with disabilities. This research conducted the mixed method, which utilizes the survey of 200 parents with children in chungbuk, who have developmental disabilities, and FGI of six parents. The survey analysis shows that 50.5% of the respondents could not support their children due to telecommuting. The most urgent support system for learning assistance was identified as support for assistive personnel. As a result of the analysis of FGI, two categories of "status of online classes in the COVID-19," "improving non-contact learning environment considering the nurturing environment," "diversifying teaching methods such as video classes," "introducing of a contextual assessment," and "enhancing health support." Based on these findings, the study proposed to review legal grounds for online classes for disabled students, expand the dispatch of learning support personnel and prepare plans to promote the online learning environment.

Discourse of Library Trilemma in the Context of Global Megatrend (글로벌 메가트렌드와 도서관 트릴레마 담론)

  • Yoon, Hee-Yoon
    • Journal of Korean Library and Information Science Society
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    • v.52 no.1
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    • pp.1-26
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    • 2021
  • In most countries, public libraries have played a role as a hub of knowledge and information, complex culture of local communities, and a third place for meeting and communication. And recent public libraries are focusing on enhancing their core competencies and expanding services using digital technologies to meet the era of digital transformation and the 4th industrial revolution. However, after the COVID-19 pandemic occurred, all public libraries are repeatedly closed, reopened, and partially closed, and all resources are devoted to providing non-contact, digital and online alternative services, and are expected to continue in the future. As a result, future public libraries are bound to face a trilemma in which digital expandability, complex cultural space, and importance as a place of knowledge and information service are conflicting. This study discoursed on the public library trilemma in the post-COVID-19 era and suggested ways to overcome it. The orientation of the future public library is the fusion and harmony of multiplicity and multipurpose, place and space, knowledge & information and complex culture, face-to-face service and remote service. The main body of a public library is not the finger (digital and non-contact), but the moon (knowledge information center).

A Study on the Management Performance and Employment of Manufacturing Business in the Period of COVID- 19 (코로나19 시기의 제조업 경영실적과 고용에 관한 연구)

  • Choi, Tae-Wol;Lim, Jong Wha
    • Industry Promotion Research
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    • v.6 no.3
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    • pp.1-8
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    • 2021
  • This study is about the current status of management performance and employment prospects during the COVID-19 period, and the analysis data are based on the Q3 and Q4 2020 economic survey of manufacturing industry provided by the National Statistical Office's Microdata Integrated Service Portal. It used 83 large companies and 435 small and medium-sized businesses as analysis data. The analysis results are summarized as follows. It was analyzed that there was little change in business performance by company size on creation of jobs. In the analysis of the economic outlook for 2021, sales of large companies were analyzed to increase, but there was little change in creation of jobs at 66.3%. In terms of sales, small and medium-sized businesses are expected to see little change at 31.3% and increase at 30.3%. Therefore, it can be seen that there is no change in the company's management performance during the COVID-19 period. In other words, it can be seen that the COVID-19 pandemic does not have a significant impact on manufacturing employment and management performance of large and small businesses.

ESG Investment Strategy Evaluation after Covid-19: Focusing on the ESG Indices Outcome (코로나19 이후 ESG 투자 전략 평가: ESG 인덱스 성과를 중심으로)

  • Park, Jun Shin;Ahn, Jae Joon;Oh, Kyong Joo
    • Knowledge Management Research
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    • v.22 no.4
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    • pp.87-101
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    • 2021
  • ESG Investment is emerging as a trend and common sense in the financial market. ESG Investment is an investment method that simultaneously pursue social sustainability and investment returns from a long-term perspective by reflecting non-financial factors such as environment, society and governance in addition to corporate financial performance in investment decisions. This study checked how the characteristics of ESG investment have been changed after Covid-19. Afterwards, it was confirmed that Covid-19 actually acted as a negative factor in the securities market by applying VAR model. At the same time, it was demonstrated that ESG indices of the US and Korea outperformed their benchmark in terms of return and risk during the pandemic regime. The result of this study hints that the importance of ESG investment will be unchanged after Covid-19. At the same time, it suggests that managers should avoid passive ESG management and engage in strategic ESG management based on knowledge management.

Suggestions for the Development of Online Education at the College of Korean Medicine - Based on the Current Status of Online Education and Satisfaction Surveys due to COVID-19 - (한의과대학 온라인 교육의 발전을 위한 제언 - COVID-19에 따른 온라인 교육 현황과 만족도 조사 사례를 바탕으로 -)

  • Wie, Hyosun;Yang, In-Jun
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.35 no.5
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    • pp.162-168
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    • 2021
  • This study was conducted to investigate the current status of online classes and evaluations during the COVID-19 pandemic and the satisfaction of students attending the College of Korean Medicine. A survey was conducted with students enrolled in Dongguk University's College of Korean Medicine. The questionnaire was divided into four areas asking about online lectures, laboratory practice, clinical practice, and evaluation experience. The items were composed of multiple-choice, a 5-point scale, and subjective type. After distributing the Google form address through SNS and LMS, only those who agreed to the questionnaire were responded anonymously. 149 out of 457 enrolled students responded. 98.7% of students experienced online lectures, and more frequently experienced real-time online lectures (98.6%) than recorded lectures (43.5%). Overall satisfaction with online lectures was 3.99 on average. 80.5% of the students experienced the online experiment and practice class, and the overall satisfaction with it was 3.29 on average. 1.3% of students experienced online clinical practice. 86.6% of students experienced online evaluation, and when asked about the fairness of the test, the average score was 3.99. Satisfaction with online lectures and evaluations is generally high, so it is expected to be used as an effective learning tool in the future. However, it seems that facility improvement and technical training of instructors are necessary. In experimental and practical education, the satisfaction level is lower than that of online lectures, so it seems necessary to develop a new online program and to prepare a safe offline education system.