Contents
01.12.2021.
Professional paper
Students' attitudes about the quality and effectiveness of online compared to traditional teaching of histology and embryology during the COVID-19 pandemic
INTRODUCTION: The corona virus desease has led to numerous changes in all aspects of our lives. The educational system through numerous innovative learning methods managed the smooth conduct of distance learning. OBJECTIVE: The aim of our study is to examine the attitudes of medical and dental students about quality and effectiveness of online versus traditional teaching, in the course of Hystology and Embriology during the duration of the COVID-19 pandemic. METHODS: The research was conducted online, with the help of a questionnaire designed on the Google Forms platform. The cross-sectional study included second-year students of medicine and dentistry at the Faculty of Medicine in Priština -Kosovska Mitrovica, who during the 2020/21 academic year followed online and classical classes in the subject Histology and Embryology. The results were processed using descriptive statistical methods and appropriate tests for testing the hypothesis about the significance of the difference between two, three or more samples. RESULTS: Out of the total number of surveyed students (n=60), 95% of students attended traditional classes, 88.3% of students attended classes via Zoom platform, while 85% of respondents used Moodle platform. The highest percentage of very satisfied (38.3%) and satisfied (51.6%) students was with traditional teaching. The percentage of available lecturers during online classes is 73.3%, and 76.7% during tradicional teaching. 75% of students believe that tradicional teaching can not be replaced by online teaching method. 68% of students used the literature and available presentations on the Moodle platform to prepare for the exam. A significant correlation was found in the case of satisfaction with the grade and the achieved success in the exam (p=0,001). CONCLUSION: The results of our research show that students preferred traditional over online teaching, which makes traditional teaching a primary and irreplaceable form of education.
Teodora Jorgaćević, Slađana Savić, Jelena Tomašević, Erdin Mehmedi, Milica Perić, Sanja Gašić
01.12.2020.
Professional paper
Respiratory epithelium: Place of entry and / or defense against SARS-CoV-2 virus
Coronavirus Disease (COVID-19) is caused by the RNA virus SARS-CoV-2. The primary receptor for the virus is most likely Angiotensin-converting enzyme 2 (ACE2), and the virus enters the body by infecting epithelial cells of the respiratory tract. Through the activation of Toll Like Receptors (TLRs), epithelial cells begin to synthesize various biologically active molecules. The pathophysiology of the COVID 19 is primarily attributed to the hyperactivation of host's immune system due to direct damage to the cells, with consequent release of proinflammatory substances, but also due to the activation of the innate immune response through the activation of alveolar macrophages and dendrite cells (DC). A strong proinflammatory reaction causes damage to alveolar epithelial cells and vascular endothelium. Respiratory epithelial cells, alveolar macrophages and DC are likely to be the most important cells involved in the innate immune response to the virus, since prolonged and excessive SARS-CoV-2-induced activation of these cells leads to the secretion of cytokines and chemokines that massively attract leukocytes and monocytes to the lungs and cause lung damage.
Snežana Leštarević, Slađana Savić, Leonida Vitković, Predrag Mandić, Milica Mijović, Mirjana Dejanović, Dragan Marjanović, Ivan Rančić, Milan Filipović
