The system will be going down for regular maintenance. Please save your work and logout.
Search
Now showing items 261-270 of 609
إسهام أنموذج لتصميم التعليم للتعلّم الإلكتروني في تطوير الكفايات المهنيّة للمعلّمين الفلسطينيين من وجهة نظرهم خلال جائحة COVID-19
(
Qatar University Press
, 2023 , Article)
هدفت هذه الدّراسة إلى تطوير أنموذج لتصميم التّعليم للتعلّم الإلكتروني بالاستناد إلى دمج أنموذج الاستقصاء الخماسي (5Es) مع استراتيجيّات التّعلّم الإلكتروني، والتّعلّم التّعاوني، وحلّ المشكلات؛ وذلك من خلال إجراءات متسلسلة ...
The SARS-CoV-2 Spike Protein Activates the Epidermal Growth Factor Receptor-Mediated Signaling
(
MDPI
, 2023 , Article)
The coronavirus disease-19 (COVID-19) pandemic is caused by the novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). At the molecular and cellular levels, the SARS-CoV-2 uses its envelope glycoprotein, the ...
The retrospective study of the metabolic patterns of BCG-vaccination in type-2 diabetic individuals in COVID-19 infection
(
Frontiers Media
, 2023 , Article)
Background: The cross-protective nature of Bacillus Calmette-Guerin (BCG) vaccine against SARS-CoV-2 virus was previously suggested, however its effect in COVID-19 patients with type 2 diabetes (T2D) and the underlying ...
Reinfections in COVID-19 Patients: Impact of Virus Genetic Variability and Host Immunity
(
MDPI
, 2021 , Article)
The COVID-19 pandemic is still posing a devastating threat to social life and economics. Despite the modest decrease in the number of cases during September-November 2020, the number of active cases is on the rise again. ...
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 ...
Could antigen presenting cells represent a protective element during sars-cov-2 infection in children?
(
MDPI
, 2021 , Article)
Antigen Presenting Cells (APC) are immune cells that recognize, process, and present antigens to lymphocytes. APCs are among the earliest immune responders against an antigen. Thus, in patients with COVID-19, a disease ...
COVID-19 Lockdowns: A Worldwide Survey of Circadian Rhythms and Sleep Quality in 3911 Athletes from 49 Countries, with Data-Driven Recommendations
(
Springer Nature
, 2021 , Article)
Objective: In a convenience sample of athletes, we conducted a survey of COVID-19-mediated lockdown (termed ‘lockdown’ from this point forward) effects on: (i) circadian rhythms; (ii) sleep; (iii) eating; and (iv) training ...
Covid-19 pandemic and quality of life among Romanian athletes
(
Multidisciplinary Digital Publishing Institute (MDPI)
, 2021 , Article)
The aim of this study was to analyze athletes’ quality of life during the COVID-19 pandemic. The study involved 249 athletes between 15 and 35 of age, M = 21.22, SD = 5.12. The sample was composed of eight Olympic Games ...
Psychosocial impact of COVID-19 pandemic: experience of healthcare workers in Qatar
(
Frontiers Media SA
, 2023 , Article)
Background: The COVID-19 pandemic has had a profound and global impact on healthcare systems worldwide, presenting unprecedented challenges for healthcare workers (HCWs) on the front. We aimed to evaluate the prevalence ...
Perspectives: Travellers Views on COVID-19 and Halal Tourism
(
Tourism Economy and Development Association (TEKAD)
, 2021 , Article)
COVID-19 pandemic has affected everyone’s life around the globe in many different ways. The
pandemic seems to have changed the way individuals and businesses work due to the restrictions
imposed on travel by different ...