of the 2nd dose of Pfizer-BioNTech vaccine administration which was given to the medical college students at Diyala University

Background: Fighting the Covid-19 pandemic is one of the global priorities now, and the most important type of pandemic control is vaccination. Pfizer-Biotech is considered one of the most important vaccines currently because of its high effectiveness in stimulating the immune system, despite limited data regarding the duration of the response and its side effects. The goal of this study is to assess the response ofSARS CoV-2 S1-RBD IgG andInterleukin-15 after 30 and 120days fromthe 2nd dose ofPfizer-BioNTech vaccine which applied on themedical college students at Diyala university. Methodology: This study began after the obtainment of the Medical College of the University of Diyala, the Medical College of Al-IraqiaUniversity, and the Iraqi Ministry of Health approvals . It continued from October 2021 until March 2022.A total of45 male and femaleparticipants from the College of Medicine( DiyalaUniversity)students who took thetwo doses of Pfizer-BioNTech and were divided into two groups: 1 month (30 days) and 4 months (120 days) after the full vaccination (two doses).A 5 ml of their blood was taken two times (30 days and 120 days after the 2nd dose of thePfizer-BioNTech vaccine) in the postgraduate laboratories inside the Diyala Medical College. A serological analysis to quantify IL-15 and SARS CoV-2 S1-RBD IgG has been done using BT LAB/ Bioassay Technology Laboratory/ Human Interleukin 15 ELISA Kit from CHINA andDiasino/ SARS CoV-2 S1-RBD IgG ELISA Kit/ CHINA respectively. All the lab work happened in the postgraduate laboratories inside the Diyala Medical College. Demographic information (Age and Gender) has been collected from the participants. These participants were split into two groups depending on the time after the 2nd of Pfizer-BioNTech vaccine dose (1 month and 4 months, respectively). STATISTICA (version 12 )and SPSS (version 26 ) were used to input, review and data analysis. Essential approaches of percentages and frequencies were used for qualitative variables, while, average and standard deviation were used for quantitative variables. For both IL-15 and SARS CoV-2 S1-RBD IgG, less than 0.05 of a P-value was considered considerable. Result(s): The ratio, according to gender, was (17.8: 82.2) while the age Average was (20.9 years old). The serum data of IL-15 and SARS-CoV-2 S1-RBD IgG levels after 1 month (30 days) and 4 months (120 days) were statistically non-parametric. Mann-Whitney test (Independent two samples), showeda considerabledrop(P<0.05) of IL-15as well as SARS CoV-2 S1-RBD IgGserum levels in the 4th-monthsgroup compared to the 1-monthgroup. Conclusion(s): Interleukin-15 and SARS CoV-2 S1-RBD IgG serum levels significantly droped after 120days of the 2nd dose of Pfizer-BioNTech vaccine. Copyright © 2022, Anka Publishers. All rights reserved.

CFD Evaluation of Air Conditioning on the Distribution and Dispersion of COVID-19 Virus in a Room

With the beginning of 2020, the Corona virus pandemic began, which negatively affected all of humanity, as medical and engineering research began to solve many problems faced by society during the era of the virus. Those who are exposed to this situation are among the medical staff responsible for treating and quarantining patients with the Corona virus. It has become the responsibility of engineers to develop solutions to the ventilation problem in order to limit the spread of this virus. Where the aim of this research paper was to study the effect of distance between patient and nurse and the effect of ventilation on the spread of the Corona virus. where a simulation model was created a room with real and 3D dimensions was studied with a patient lying down and the nurse treating him next to him. Where the room contains an air conditioner, two outlets for the airflow and an opening for the patient's mouth to simulate the exit of carbon dioxide gas from his mouth. Where the different and high speeds were studied to find out their effect on the spread of the virus abroad and its disposal. The result proves the best flow velocity of the ventilation system is 20 m/s, which led to a large limitation of the waiting for the Corona virus. The best place for the patient and the airway in the room should not be in the same airway, and the best place is between them. where these results serve as a reference for the engineering of medical rooms in terms of the effect of ventilation and distance of the pathogen on the spread of the Corona virus.

Effectiveness of English Language E-leaming among Tertiary Education Students during the COVID-19 Pandemic

The unprecedented global pandemic Covid-19 has changed our lives. The pandemic has also impacted the education sector. The significant change of educational methods from face-to-face learning to e-learning has undoubtedly resulted in a significant impact on the perceptions and effectiveness of e-learning among English language learners. This research is to ascertain the perceptions and effectiveness of learning English via e-learning through online surveys involving 337 students from a public university in Malaysia. The result on perceptions indicates that flexibility, freedom and interactivity are the reasons why students have positive inclinations towards e-learning, whilst less interaction with teachers, technical problems, and lack of conducive learning experience are the negative perceptions indicated by respondents. The result on the effectiveness of learning English via e-learning shows those students responded positively in learning writing, reading, listening and speaking. Generally, students were both impartial, and enjoyed e-learning. It is hoped that this research would broaden and widen the spectrum of e-learning among students during the pandemic.