Objective. To assess burnout level during an outbreak ofCOVID-19 and to identify influencing factors between frontlinenurses and nurses from other wards. Methods. This crosssectional study makes comparison between two groups of nursesincluding frontline (exposure group) and other nurses working inusual wards (non-exposure group) in Torbat Heydariyeh city, Iran.Oldenburg Burnout Inventory (OLBI), Job stress questionnaire(JSQ), and questionnaires of hospital resources, family support,and measuring the fear of COVID-19 were used as researchinstruments. Results. The scores of job stress and burnout inthe exposure group with COVID-19 infection were significantlyhigher than in the non-exposure group (p=0.006 and p=0.002,respectively). Although, in univariate linear regression, employmentstatus (p=0.047), experience in taking care of patient confirmed  or suspected with COVID-19 infection (p=0.006), hospital resources (p=0.047), and job stress(p<0.001) were considered as significant risk factors for COVID-19-related burnout. In multivariateregression analysis, job stress (p=0.031, β=0.308) was considered as an only factor that hasa significant relationship with COVID-19-related burnout. Conclusion. The burnout level infrontline nurses was higher than other nurses, the most important influencing factor was the jobstress. Regarding to negative effects of burnout on both physical and mental health nurses, it issuggested that a strong strategy be considered to reduce nurses’ burnout to be able to controlongoing and future outbreaks successfully.

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Effective classroom management methods are well known, but effective ways of managing classes of beginner teachers remain elusive. Classroom management refers to the wide range of skills and techniques that teachers use to ensure that classes are conducted without destructive student behavior. The present study is applied nonexperimental research. The purpose of this study was to design a tool to measure the effective management of the virtual classroom from the perspective of professors and students in e-learning and evaluate its validity and reliability. The research sample was taken randomly from all universities that make use of e-learning in Tehran, Iran, during the 2019–2020 semesters. The results show that the professional development of online classroom management is necessary for preparing teachers to teach in digital environments. The results of this research in the form of a validated questionnaire can be considered as an indicator for educators and students working in online environments, and this tool can be used for effective teaching and learning in the digital age.

Coronary artery anomalies are reported to have a higher incidence in young victims of sudden cardiac arrest (4-15%), as compared to adults (1%). Among coronary anomalies, anomalous coronary artery arising from the opposite sinus of Valsalva (ACAOS) remains a major clinical problem which poses daunting challenges. The current paper reports on the first case with main left coronary anomalies with aortic failure due to the web sub-aortic. A 29-year-old woman with orthopnea referred to a doctor. Echocardiography and electrocardiogram (ECG) confirmed sub aortic web with severe aortic insufficiency. Subsequently, the patient was subjected to aortic valve replacement surgery and the subvalvular resection was performed. During the surgery, the aorta was initially opened and the left coronary hole was not found in the coronary sinus. Therefore, only a cardioplegia from the right coronary (artery) hole was administered to the patient. The cusps of the valve and subvalvular web were removed. During the release, the left main artery which apparently originated from the right coronary artery(RCA) was found to be damaged. Therefore, the damaged part of the left main coronary artery was repaired, the valve was placed, and the aorta was repaired. Following deaeration, cross-clamp was removed, and the right heart started to work; nonetheless, the left heart was not engaged in any activity. Therefore, the cross-clump was attached again to the aorta, and a vein graft on the left anterior descending (LAD) artery was placed on the aorta. After the removal of the cross-clamp, the heart recovered its normal function, and the patient was removed from the pump with low inotropic. Thereafter, she was transferred to the Intensive Care Unit (ICU) of open-heart surgery. The present report aimed to express the incidence of multiple complications, such as recurrence of illness, the optimal time for surgery, the best way of surgery, getting cardiologists' attention (colleagues) during angiography, and knowing the characteristics of these abnormalities.