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1.
arxiv; 2021.
Preprint em Inglês | PREPRINT-ARXIV | ID: ppzbmed-2112.11197v1

RESUMO

Educational Institutions have an essential role in promoting the teaching and learning process, within universities, colleges, and communities. Due to the recent coronavirus COVID 19 pandemic, many educational institutions adopted hybrid learning (HL), which is a combination of classic and online learning. It integrates the advantages of both, and it is a fundamental factor to ensure continued learning. Technological innovations such as HL are changing the teaching process, and how students, lecturers, and administrators interact. Based on this, the Community College of Qatar (CCQ) focused on researching the structures and elements related to the adoption of HL. Thus, the goal of this research paper is to reveal the impact of HL on the learning process in CCQ, and the effective instructional technology (INST) tools required for a successful HL program. Our research questions for the survey were designed to measure the opinions of the students, instructors, and administrators about the HL program. It is observed from the results that the majority of students, instructors, and administrators showed a positive attitude toward HL, but some had negative views and experienced challenges. The results were analyzed and discussed to better utilize HL to meet the growing demands of the community.

2.
RADS Journal of Biological Research & Applied Sciences ; 12(1):53-58, 2021.
Artigo em Inglês | CAB Abstracts | ID: covidwho-1436598

RESUMO

Background: COVID effects different people in different ways. Acute kidney injury and variations in lipid profile are frequent complications among patients hospitalized for Covid-19. Severely infected patients with Covid-19 have higher frequency of kidney injury and hypolipidemia, resulting in higher mortality rate. Objectives: The current study was designed to explore variations in lipid profile and estimated Glomerular Filtration Rate (eGFR) in Covid-19 patients, and to evaluate the association of eGFR with lipid parameters in Covid-19 patients (confirmed cases) and healthy controls. Methodology: This comparative cross sectional study was carried out at pathology lab of MACCA Diagnostic, Multan from Oct 2020 to Jan 2021. We enrolled 225 Covid-19 patients as test group and 225 healthy subjects (negative for Covid-19) as control group. Fasting blood samples of Covid-19 and control group were collected to test lipid profile and eGFR. Estimated GFR was calculated from the value of serum creatinine, age, gender and ethnicity of all participants by applying Modification of Diet in Renal Disease (MDRD) equation.

3.
mSphere ; 5(4)2020 07 15.
Artigo em Inglês | MEDLINE | ID: covidwho-647106

RESUMO

The outbreak of coronavirus disease 2019 (COVID-19), caused by the novel coronavirus severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has caused a threat to global health. The mortality rate of severely ill patients in the early stage is 32.5%. The exacerbation of the condition and death of patients are closely associated with inflammatory cytokine storms, which are caused by excessive activation of the immune and complement systems as well as the coinfection of other pathogens. However, the immunological characteristics and the mechanisms underlying inflammatory storms have not been well elucidated. Here, we analyzed the clinical and immunological characteristics of 71 confirmed COVID-19 patients. Based on the National Health Commission of China (NHCC) guidelines, patients were stratified into mild and severe types. We compared the clinical and laboratory data obtained from electronic medical records between the two types. In regard to the hematological parameters, COVID-19 patients showed decreased erythrocyte count, hemoglobin, hematocrit, lymphocyte count, eosinophil count, and complement C1q, whereas neutrophils, C-reactive protein, and procalcitonin were significantly increased, especially in severe cases. We also found that CD3+ CD4+ T lymphocytes, CD3+ CD8+ T lymphocytes, CD19+ B lymphocytes, and CD16+ CD56+ NK cells in the peripheral blood of all patients were decreased. In addition, CD3+ CD8+ T lymphocytes, CD16+ CD56+ NK cells, and complement C1q in severely ill patients decreased more significantly. Additionally, interleukin 6 (IL-6) elevation was particularly prominent in all patients, especially in severe cases. These results suggest that CD3+ CD8+ T lymphocytes, CD16+ CD56+ NK cells, C1q as well as IL-6 may play critical roles in the inflammatory cytokine storm. The dysregulation of these aforementioned immune parameters, along with bacterial coinfection, were the important causes of exacerbation of the patients' condition and death. This study improves our understanding of the immune dysregulation of COVID-19 and provides potential immunotherapeutic strategies.IMPORTANCE The dysregulation of CD3+ CD8+ T lymphocytes, CD16+ CD56+ NK cells, C1q as well as IL-6, along with bacterial coinfection, were important causes of exacerbation of the patients' condition and death.


Assuntos
Betacoronavirus/imunologia , Infecções por Coronavirus/imunologia , Infecções por Coronavirus/patologia , Síndrome da Liberação de Citocina/patologia , Pneumonia Viral/imunologia , Pneumonia Viral/patologia , Adulto , Idoso , Linfócitos B/imunologia , Linfócitos T CD4-Positivos/imunologia , Linfócitos T CD8-Positivos/imunologia , COVID-19 , Complemento C1q/imunologia , Infecções por Coronavirus/mortalidade , Síndrome da Liberação de Citocina/mortalidade , Feminino , Humanos , Interleucina-6/sangue , Células Matadoras Naturais/imunologia , Masculino , Pessoa de Meia-Idade , Pandemias , Pneumonia Viral/mortalidade , SARS-CoV-2
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