• Title/Summary/Keyword: COVID-19 epidemic

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A Review of Extended Fraud with COVID-19 on the Online Services

  • Elhussein, Bahaeldein;Karrar, Abdelrahman Elsharif
    • International Journal of Computer Science & Network Security
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    • v.22 no.6
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    • pp.163-171
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    • 2022
  • Online services are widely spread, and their use increases day by day. As COVID-19 spread and people spent much time online, fraud scams have risen unexpectedly. Manipulation techniques have become more effective at swindling those lacking basic technological knowledge. Unfortunately, a user needs a quorum. The interest in preventing scammers from obtaining effective quality service has become the most significant obstacle, increasing the variety of daily Internet platforms. This paper is concerned with analyzing purchase data and extracting provided results. In addition, after examining relevant documents presenting research discussing them, the recommendation was made that future work avoids them; this would save a lot of effort, money, and time. This research highlights many problems a person may face in dealing with online institutions and possible solutions to the epidemic through theft operations on the Internet.

The Impact of COVID-19 on the Volatility of Bangladeshi Stock Market: Evidence from GJR-GARCH Model

  • GOLDER, Uttam;RUMALY, Nishat;SHAHRIAR, A.H.M.;ALAM, Mohammad Jahangir;BISWAS, Al Amin;ISLAM, Mohammad Nazrul
    • The Journal of Asian Finance, Economics and Business
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    • v.9 no.4
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    • pp.29-38
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    • 2022
  • The enormous sway of COVID-19 on the international financial market has been felt across the globe. The financial markets of Bangladesh have also been similarly affected by the global epidemic and experienced a significant increase in volatility. To scrutinise the connection between COVID-19 and the Dhaka Stock Exchange (DSE) indices' return and instability, this study uses data of the DSE from February 2014 to September 2021. A comparative examination of the return and instability of the stock indices of the DSE has also been done considering the outbreak of the current COVID-19 situation. After using the GJR-GARCH (1,1) model, this review uncovers that the outbreak of COVID-19 has a statistically positive noteworthy association with the DSE stock indices' instability, which increases the market's volatility. Traders' fear and the rising frequency of COVID-19 reported patients could cause this. Besides, according to this study, COVID-19 shows a substantial positive linkage with stock market returns that increases the market's return. An appealing valuation, lower interest rates in the banking channel, economic rebound following the closure to prevent coronavirus transmission, improved remittance inflows, and a return of export revenues could all have contributed to this outcome. In addition, the findings also reveal that all market indices are in a mean-reverting phase.

Correlation Between Work Fatigue Caused by COVID-19 and Occupational Burnout -Regression Analysis of Occupational Stress in Physiotherapists- (COVID-19로 인해 발생한 업무의 피로도와 직무소진의 상관관계 및 직무스트레스와의 회귀분석 연구 -물리치료사를 대상으로-)

  • Lee, Sang-Yeol;Choi, Su-Hong;Kim, In-Gyun;Oh, Kang-O;Yoon, Sung-Young;Seok, Him;Heo, Jae-Seok
    • PNF and Movement
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    • v.19 no.2
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    • pp.225-231
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    • 2021
  • Purpose: This study was conducted to investigate the type of physical therapist response work and its intensity, along with the prolonged prevalence of COVID-19, to determine the impact on physical therapists' occupational stress and occupational burnout. Methods: An online survey was conducted with 118 physiotherapists and collected the participants' gender, final educational background, clinical work experience, workplace type, additional workload, and fatigue associated with COVID-19. After excluding one participant who submitted an incomplete questionnaire, 117 respondents were included in the final data. Results: Additional COVID-19-related workloads and response reliability for fatigue, occupational burnout, and occupational stress were shown to have Cronbach's alpha measures of 0.76, 0.89, and 0.87, respectively. Groups who had experienced a new epidemic in the past showed higher fatigue levels (3.06±0.94) than those groups who had no such experience (2.49±0.84; p < 0.05). Correlation analysis of COVID-19 work fatigue and occupational burnout scales showed a positive correlation (r = 0.19; p < 0.05). The regression of occupational burnout and occupational stress showed a regression model of Y = 20.00+0.43X1 (X1: job stress; p< 0.05) and an explanatory power of 24.8% with an adj.R2 = 0.25. Conclusion: Based on the results, it is suggested that various institutions, such as medical institutions, educational institutions, and physiotherapists' associations, should seek ways to manage and alleviate physiotherapists' stress.

A topic modeling analysis for Korean online newspapers: Focusing on the social perceptions of nurses during the COVID-19 epidemic period (토픽모델링을 이용한 한국 인터넷 뉴스의 간호사 관련 기사 분석: COVID-19 유행시기를 중점으로)

  • Chang, Soo Jung;Park, Sunah;Son, Yedong
    • The Journal of Korean Academic Society of Nursing Education
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    • v.28 no.4
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    • pp.444-455
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    • 2022
  • Purpose: This study explored the meaning of the social perceptions of nurses in online news articles during the coronavirus disease 2019 (COVID-19) pandemic. Methods: A total of 339 nurse-related articles published in Korean online newspapers from January 1 to December 31, 2020, were extracted by entering various combinations of OR and AND with the four words "Corona," "COVID," "Nursing," and "Nurse" as search keywords using BIGKinds, a news database provided by the Korea Press Foundation. The collected data were analyzed with a keyword network analysis and topic modeling using NetMiner 4. Results: The top keywords extracted from the nurse-related news articles were, in the following order, "metropolitan area," "protective clothing," "government," "task," and "admission." Four topics representing keywords were identified: "encouragement for dedicated nurses," "poor work environment," "front-line nurses working with obligation during the COVID-19 pandemic," and "nurses' efforts to prevent the spread of COVID-19." Conclusion: The media's attention to the dedication of nurses, the shortage of nursing resources, and the need for government support is encouraging in that it forms the public opinion necessary to lead to substantial improvements in treating nurses. The nursing community should actively promote policy proposals to improve treatment toward nurses by utilizing the net function of the media and proactively seek and apply strategies to improve the image of nurses working in various fields.

COVID-19 progression towards ARDS: a genome wide study reveals host factors underlying critical COVID-19

  • Shama Mujawar;Gayatri Patil;Srushti Suthar;Tanuja Shendkar;Vaishnavi Gangadhar
    • Genomics & Informatics
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    • v.21 no.2
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    • pp.16.1-16.14
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    • 2023
  • Coronavirus disease 2019 (COVID-19) is a viral infection produced by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) virus epidemic, which was declared a global pandemic in March 2020. The World Health Organization has recorded around 43.3 billion cases and 59.4 million casualties to date, posing a severe threat to global health. Severe COVID-19 indicates viral pneumonia caused by the SARS-CoV-2 infections, which can induce fatal consequences, including acute respiratory distress syndrome (ARDS). The purpose of this research is to better understand the COVID-19 and ARDS pathways, as well as to find targeted single nucleotide polymorphism. To accomplish this, we retrieved over 100 patients' samples from the Sequence Read Archive, National Center for Biotechnology Information. These sequences were processed through the Galaxy server next generation sequencing pipeline for variant analysis and then visualized in the Integrative Genomics Viewer, and performed statistical analysis using t-tests and Bonferroni correction, where six major genes were identified as DNAH7, CLUAP1, PPA2, PAPSS1, TLR4, and IFITM3. Furthermore, a complete understanding of the genomes of COVID-19-related ARDS will aid in the early identification and treatment of target proteins. Finally, the discovery of novel therapeutics based on discovered proteins can assist to slow the progression of ARDS and lower fatality rates.

Cyber Security Attacks and Challenges in Saudi Arabia during COVID-19

  • Nourah Almrezeq;Mamoona Humayun;Madallah Alruwaili;Saad Alanazi;NZ Jhanjhi
    • International Journal of Computer Science & Network Security
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    • v.23 no.10
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    • pp.179-187
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    • 2023
  • The outbreak of COVID-19 had affected almost every part of the world and caused disastrous results, the number of reported COVID-19 cases in past few months have reached to more than 29 million patients in the world globally. This pandemic has adversely affected all the activities of life, ranging from personal life to overall economic development. Due to the current situation, routinely turned to online resources, and people have relied on technology more than they have been before. Since cybercriminals are an opportunist and they utilized this entirely, by targeting the online services for all sectors of life. This fortnight online dependency of the community over the internet opened several easy doors for the cybercriminals. This causes exponential attacks over internet traffic during this epidemic situation. The current Covid-19 pandemic situation appeared at once, and no one was ready to prevail this. However, there is an urgent need to address the current problem in all means. . KSA is among one of the countries most affected by these CA and is a key victim for most cyber-crimes. Therefore, this paper will review the effects of COVID-19 on the cyber-world of KSA in various sectors. We will also shed light on the Saudi efforts to confront these attacks during COVID -19. As a contribution, we have provided a comprehensive framework for mitigating cybersecurity challenges.

Compliance and Influencing Factors to Respiratory Infection Prevention among College Students Who Have Experienced the COVID-19 Pandemic (코로나19 대유행을 경험한 대학생들의 호흡기감염 예방 이행 수준과 영향요인 )

  • Jin Hwan Oh;Og Son Kim
    • Journal of the Korean Applied Science and Technology
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    • v.41 no.2
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    • pp.188-198
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    • 2024
  • This study was conducted to understand the level of compliance and influencing factors to respiratory infection prevention among the college students who experienced the COVID-19 pandemic. An online survey was conducted on 200 college students from December 15, 2023 to January 5, 2024, and the data of 199 people who responded faithfully were analyzed using descriptive statistics, t-test, ANOVA, and multiple regression through SPSS 18.0. According to the result, the compliance level of respiratory infection prevention was 32.95±6.05 points on average out of 48 points. The general characteristics, which showed differences in the compliance level of respiratory infection prevention, and the characteristics related to respiratory infections were identified to be major (t=-2.59, p=.010), education on respiratory infection prevention (t=1.99, p=.048), influenza vaccination of the year (t=-2.10, p=.037), COVID-19 vaccination of the year (t=3.56, p<.001), and mask wearing in crowded places (t=4.96, p<.001). As for the factors influencing the compliance to respiratory infection prevention, major (β=0.31, p<.001), influenza vaccination of the year (β=-0.15, p=.046), and mask wearing in a crowded places (β=-0.31, p<.001) were identified as a significant variable in the multiple regression analysis. In conclusion, since respiratory infections continue to occur even after the termination of COVID-19 epidemic, it is necessary to make efforts to promote compliance to respiratory infection prevention practice, and it is expected that the factors identified in this study can be used as the basic data when developing a respiratory infection prevention program targeting college students.

On an "Um~" Vocal Breathing to Relieve Stress When Wearing a Mask (마스크 착용시 스트레스 해소를 위한 "음~"발성호흡 연구)

  • Tian, Zhixing;Bae, Myung-Jin
    • The Journal of the Convergence on Culture Technology
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    • v.7 no.1
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    • pp.576-581
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    • 2021
  • In the post-epidemic era, COVID-19 has not yet been fully controlled. Wearing masks is still the main means of epidemic prevention, and the negative effects brought by masks continue to continue. Wearing a mask for a long time can cause two problems. The first problem is hypoxia, and the other is an increase in psychological stress. To reduce the negative impact of masks, this paper proposes a new breathing mode. It is the "Umm~" vocal breathing mode, which simultaneously solves the two problems of hypoxia and increased stress. This paper explores the reasons why new breathing patterns can relieve stress. Explains the relationship between HRV and stress index and uses SDNN as an indicator to detect stress index to confirm the effectiveness of this breathing pattern. Experimental results prove that the "Umm~" vocal breathing mode can not only relieve the stress induced by wearing a mask. And when not wearing a mask, it can also be used to relieve daily stress. This method that anyone can easily implement should be more popularized.

The Contagion of Covid-19 Pandemic on The Volatilities of International Crude Oil Prices, Gold, Exchange Rates and Bitcoin

  • OZTURK, M. Busra Engin;CAVDAR, Seyma Caliskan
    • The Journal of Asian Finance, Economics and Business
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    • v.8 no.3
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    • pp.171-179
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    • 2021
  • In the international markets, financial variables can be volatile and may affect each other, especially in the crisis times. COVID-19, which began in China in 2019 and spread to many countries of the world, created a crisis not only in the global health system but also in the international financial markets and economy. The purpose of this study is to analyze the contagious effect of the COVID-19 pandemic on the volatility of selected financial variables such as Bitcoin, gold, oil price, and exchange rates and the connections between the volatilities of these variables during the pandemic. For this aim, we use the ARMA-EGARCH model to measure the impact of volatility and shocks. In other words, it is aimed to measure whether the impact of the shock on the financial variables of the contagiousness of the epidemic is also transmitted to the markets. The data was collected from secondary and daily data from September 2th 2019 to December 20th, 2020. It can be said that the findings obtained have statistically significant effects on the conditional variability of the variables. Therefore, there are findings that the shocks in the market are contaminated with each other.

The Changing Role of Food Delivery Apps among Hotel Guests before and after Covid 19 Pandemic

  • Soo-Hee LEE
    • East Asian Journal of Business Economics (EAJBE)
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    • v.11 no.2
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    • pp.59-70
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    • 2023
  • Purpose - The hospitality industry has experienced significant transformations in recent years, primarily driven by advancements in technology and changes in consumer behavior. The worldwide COVID-19 epidemic has intensified a trend of hotel guests increasingly relying on meal delivery applications. Considering the recent COVID-19 pandemic, this study sets out to investigate how hotel guests have been using food delivery apps before and during the outbreak. Research design, data, and methodology - This study utilizes a systematic literature review as its research design. A systematic literature review is a methodical, well-structured procedure for locating, analyzing, and synthesizing pertinent research articles. Result - The findings shed light on four main aspects: convenience and accessibility, safety and hygiene assurance, personalization and customization, and local exploration and cultural immersion. These findings provide valuable insights into the evolving preferences and behaviors of hotel guests in utilizing food delivery apps, particularly in the context of the COVID-19 pandemic. Conclusion - This study has contributed to the understanding of the changing role of food delivery apps among hotel guests. By recognizing the evolving dynamics and leveraging the opportunities presented by food delivery apps, hotels can adapt to meet guest expectations, enhance customer satisfaction, and thrive in the ever-changing landscape of the hospitality industry.