COVID-19 Research: Recent submissions
Now showing items 401-420 of 848
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A particle swarm optimization approach for predicting the number of COVID-19 deaths
( Nature Research , 2021 , Article)The rapid spread of the COVID-19 pandemic has raised huge concerns about the prospect of a major health disaster that would result in a huge number of deaths. This anxiety was largely fueled by the fact that the severe ... -
Impact of COVID-19 lockdown on smoking (waterpipe and cigarette) and participants' BMI across various sociodemographic groups in Arab countries in the Mediterranean Region
( EU European Publishing , 2022 , Article)INTRODUCTION: Tobacco smokers are at high risk of developing severe COVID-19. Lockdown was a chosen strategy to deal with the spread of infectious diseases; nonetheless, it influenced people's eating and smoking behaviors. ... -
تحليل مستويات نوبات الهلع من جائحة کورونا COVID-19 باستخدام نظرية الاستجابة المفردة :دراسة تشخصية فارقة على عينات من المجتمع العربي
( کلية التربية - جامعة العريش , 2021 , Article)هدفت الدراسة إلى إعداد وتطوير بنک أسئلة لقياس نوبات الهلع من جائحة کورونا COVID-19 وفقا لنظرية الاستجابة للمفردة IRT وتقييم المعايير التشخيصية لمستويات نوبات الهلع باستخدام درجات القطع في المجتمع العربي، ومقارنتها لدي بعض ... -
Connectedness of stock markets with gold and oil: New evidence from COVID-19 pandemic
( Elsevier , 2022 , Article)This paper sets out to explore the impact of COVID-19 pandemic on the dynamic connectedness among gold, oil and five leading stock markets by applying a new DCC-GARCH connectedness approach. We find stronger connectedness ... -
Risk connectedness between energy and stock markets: Evidence from oil importing and exporting countries
( Elsevier , 2022 , Article)The surmounted environmental and energy challenges have motivated this study to explore the connectedness nexus between oil/renewable energy and stock markets for oil-exporting (importing) countries. We utilize the dynamic ... -
On the safe-haven and hedging properties of Bitcoin: new evidence from COVID-19 pandemic
( Emerald Publishing , 2022 , Article)Purpose: This study aims to investigate the safe-haven and hedging properties of Bitcoin against a wide variety of conventional assets before and during the coronavirus disease 2019 (COVID-19) pandemic. Design/methodolog ... -
Distance learning as emergency remote teaching vs. traditional learning for accounting students during the COVID-19 pandemic: Cross-country evidence
( Elsevier , 2022 , Article)The main objective of the current study is to examine the perspectives of undergraduate accounting students on the transition to distance learning (DL) as emergency remote learning from traditional learning (TL) during the ... -
A scoping review of the risk factors and strategies followed for the prevention of COVID-19 and other infectious diseases during sports mass gatherings: Recommendations for future FIFA World Cups
( Frontiers Media , 2023 , Article)Objective: Sports mass gatherings of people pose particular concerns and place an additional burden on the host countries and the countries of origin of the travelers. It is imperative to identify how countries dealt with ... -
Covid-19 inspired a stem-based virtual learning model for middle schools—a case study of Qatar
( MDPI , 2021 , Article)An unprecedented turn in educational pedagogies due to the COVID-19 pandemic has significantly affected the students’ learning process worldwide. This article describes developing a STEM-based online course during the ... -
Using machine learning to analyze the impact of coronavirus pandemic news on the stock markets in GCC countries
( Elsevier , 2022 , Article)COVID-19 has resulted in high volatility in financial markets across the world. The goal of this study is to investigate the impact of COVID-19-related news on the stock markets in Gulf Cooperation Council (GCC) countries. ... -
Risk spillover from crude oil prices to GCC stock market returns: New evidence during the COVID-19 outbreak
( Elsevier , 2021 , Article)In this study, we examine oil price extreme tail risk spillover to individual Gulf Cooperation Council (GCC) stock markets and quantify this spillover's shift before and during the COVID-19 pandemic. A dynamic conditional ... -
Systemic risk spillover across global and country stock markets during the COVID-19 pandemic
( Elsevier , 2021 , Article)Uncovering the tail risk spillover among global financial markets helps provide a more comprehensive understanding of the information transmission in extreme market conditions such as the COVID-19 outbreak. In this paper, ... -
Impact of global health crisis and oil price shocks on stock markets in the GCC
( Elsevier , 2022 , Article)This study examines the impact of global COVID-19 cases and oil price shocks on the stock markets in the GCC. Using the Kalman filter to generate the unexpected oil price shocks, we find that, with the exception of Oman, ... -
Toward Resilient Online Assessments: Lessons Learned from the COVID-19 Era
( Springer International Publishing , 2022 , Book chapter)This chapter aims to explore the reality of using online assessment systems during COVID-19 and critically reviews the existing models based on testing standards and the authors’ experience. These can help educators and ... -
High–temporal resolution profiling reveals distinct immune trajectories following the first and second doses of COVID-19 mRNA vaccines
( American Association for the Advancement of Science , 2022 , Article)Knowledge of the mechanisms underpinning the development of protective immunity conferred by mRNA vaccines is fragmentary. Here, we investigated responses to coronavirus disease 2019 (COVID-19) mRNA vaccination via ... -
Effect of near-infrared and blue laser light on vero E6 cells SARS-CoV-2 infection model
( Wiley , 2022 , Article)Photobiomodulation therapy (PBMT) employing laser light has been emerging as a safe strategy to challenge viruses. In this study the effect of blue and near-infrared (NIR) laser light was assessed in an in vitro model of ... -
Understanding digital bubbles amidst the COVID-19 pandemic: Evidence from DeFi and NFTs
( Elsevier , 2022 , Article)This paper investigates digital financial bubbles amidst the COVID-19 pandemic. Using a sample of 9 DeFi tokens, 3 NFTs, Bitcoin, and Ethereum, we detect several bubbles overlapping the examined cryptoassets. We also uncover ... -
Clinical outcomes of Pfizer-BioNTech COVID-19 vaccine in children and adolescents: A systematic review
( John Wiley and Sons Inc , 2022 , Article Review)Background & Aims: The BioNTech-Pfizer vaccine is the only vaccine offered to children among all available vaccines. However, limited evidence is available about the clinical outcomes of COVID-19 vaccines, especially among ... -
Autonomous Drones: A Game Changer in Lightweight Delivery Services
( UC Berkeley Haas School of Business , 2022 , Other)Imagine, you placed an order online and received it in minutes. This is the future of drone delivery services. Customers can track the drone during its delivery trip via apps like Uber car. Some cities and even rural areas ... -
COVID-19, cryptocurrencies bubbles and digital market efficiency: sensitivity and similarity analysis
( Elsevier , 2022 , Article)This paper compares the degree of cryptocurrency market efficiency during the pre- and post COVID-19 pandemic with the bubble and non-bubble periods of cryptocurrency markets. Furthermore, it examines and clusters eighteen ...
