بحث بسيط
السجلات المعروضة 81 -- 90 من 266
Impact of COVID-19 Pandemic News on the Cryptocurrency Market and Gold Returns: A Quantile-on-Quantile Regression Analysis
(
MDPI
, 2022 , Article)
In this paper, we investigate the relationship between the RavenPack news-based index associated with coronavirus outbreak (Panic, Sentiment, Infodemic, and Media Coverage) and returns of two commodities—Bitcoin and gold. ...
COVID-19 infection localization and severity grading from chest X-ray images
(
Elsevier Ltd
, 2021 , Article)
The immense spread of coronavirus disease 2019 (COVID-19) has left healthcare systems incapable to diagnose and test patients at the required rate. Given the effects of COVID-19 on pulmonary tissues, chest radiographic ...
Exploring the interaction of quercetin-3-O-sophoroside with SARS-CoV-2 main proteins by theoretical studies: A probable prelude to control some variants of coronavirus including Delta
(
Elsevier B.V.
, 2021 , Article)
The aim of this study was to investigate the mechanism of interaction between quercetin-3-O-sophoroside and different SARS-CoV-2?s proteins which can bring some useful details about the control of different variants of ...
Forecast of the outbreak of COVID-19 using artificial neural network: Case study Qatar, Spain, and Italy
(
Elsevier B.V.
, 2021 , Article)
The present study illustrates the outbreak prediction and analysis on the growth and expansion of the COVID-19 pandemic using artificial neural network (ANN). The first wave of the pandemic outbreak of the novel Coronavirus ...
Effects of BA.1/BA.2 subvariant, vaccination, and prior infection on infectiousness of SARS-CoV-2 omicron infections.
(
Oxford University Press
, 2022 , Article)
Compared to BA.1, BA.2 was associated with lower RT-qPCR cycle threshold (Ct) value-3.53 fewer cycles (95% CI: 3.46-3.60), signifying higher infectiousness. This may reflect higher viral load and/or longer duration of ...
Knowledge, Attitude, Practices, and Sources of Information (KAPS) toward COVID-19 during the second wave pandemic among university population in Qatar: A cross-sectional study
(
Frontiers Media
, 2022 , Article)
Background: The World Health Organization (WHO) declared COVID-19 as a pandemic on 11 March 2020. Many efforts were performed to contain the virus worldwide. People's knowledge and attitude should be directed toward strict ...
SARS-CoV-2 does not replicate in HaCaT spontaneously immortalized human keratinocytes: implications for the pathogenesis of COVID-19-associated skin manifestations
(
John Libbey Eurotext
, 2022 , Article)
Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2)-related cutaneous manifestations have been reported [1], however, the direct or indirect role of SARS-CoV-2 infection in their pathophysiology is still debated ...
Consumer Protection and the Covid-19 Challenges: Paving the Way for Effective Legal Enforcement: A Case Study in the Qatari Legal System
(
Allied Business Academies
, 2021 , Article)
This research paper examines the legal protection of consumer rights at the time of the Corona pandemic (COVID-19) in the State of Qatar as a model to demonstrate the effectiveness of government efforts taken since the ...
Association of Lung CT Findings in Coronavirus Disease 2019 (COVID-19) With Patients' Age, Body Weight, Vital Signs, and Medical Regimen
(
Frontiers Media
, 2022 , Article)
Objective: This study aimed to detect possible associations between lung computed tomography (CT) findings in COVID-19 and patients' age, body weight, vital signs, and medical regimen in Jordan. Methods: The present ...
A Transformative State in the Wake of COVID-19: What Is Needed to Enable Innovation, Entrepreneurship, and Education in Qatar?
(
MDPI
, 2022 , Article)
Economic diversification is vital in achieving sustainable economic development, especially
for countries relying on nonrenewable natural resources, such as oil and gas, in the case of the
Gulf Cooperation Council (GCC) ...