Virus (COVID-19) Epidemic and Sports Performance: Evidence from Asian Professional Football Clubs

When the COVID-19 epidemic spread around the world, researchers did many studies about sports and COVID-19, but there was not much quantitative research. Therefore the purpose of this study was the effect of the COVID-19 epidemic on the sports performance of Asian football clubs with quintile regression. This study used panel data for fifteen Asian football clubs from April to December 2020. The research used the points of Asia football clubs to estimate their sports performance. Also, this study collected cases and deaths caused by the COVID-19 epidemic as the other two variables. According to the results, because coefficient estimates (degree of depend-ence) for each quantile are equal (for both effects CA on SP and effect DE on SP), the dependence structure is said to be constant. Therefore, a positive estimate and equivalent in all quantile for the impact of cases of COVID-19 virus (CA) on Sports Performance (SP) show that cases of COVID-19 virus (CA) have a constant positive effect on sports performance (SP). A negative estimate and equivalent in all quantile for the impact of death of COVID-19 virus (DE) on Sports Performance (SP) show that death of COVID-19 virus (DE) has a constant negative effect on Sports Performance (SP). © 2023, Stanislaw Podobinski Publishing House of the Jan Dlugosz University. All rights reserved.

APP test system: a case study of calculus

COVID-19 has had a broad impact on society, and a profound impact on education, thus, distance online courses are seen as a way to continue schooling during the pandemic. This study employed Android Studio to develop an APP calculus learning test system which can be used for self-review exercises and allows students to make good use of mobile apps to conduct post-learning and self-testing of calculus at home, and immediately determine their learning results. In addition, through back-end access, teachers can view students' learning scores and the number of wrong and correct questions, and thus, know the effect of individual students' self-review. During the COVID-19 pandemic, as teachers and students cannot interact in class at school, teachers can use the APP calculus learning test system to provide distance remedial teaching to students who fall behind during the course.

THE EFFECT OF THE COVID-19 CRISIS ON THE SATISFACTION AND PERFORMANCE OF NURSES

The study reviews the effect of the COVID-19 crisis on the satisfaction and performance of nurses during the crisis as examined in studies carried out in ten countries (Italy, Australia, Great Britain, Germany, Israel, New Zealand, Spain, Canada, Romania, and Switzerland). The purpose of the study is to identify the scope and frequency of the phenomena reported by the nursing workforce from a broad global perspective and to provide information and recommendations to improve preparation for the future. The review shows that the COVID-19 crisis has affected the mental health of the nurses (Spain, Switzerland), anxiety, depression, and burnout (Switzerland, New Zealand, Canada, Germany), deterioration of working conditions mainly due to lack of staff, high employee turnover, and the lack of personal protective equipment (UK), and symptoms of stress and fear of contracting the disease (Romania, Germany, Canada). Also, the experience of coping during the pandemic period is seen as a deep mental trauma (Italy) and is characterized by the lack of mental support for the medical staff (Israel). The phenomena reported by the nursing staff in the countries examined caused less ability to function, lack of confidence, (to plan, concentrate, and organize), and a general decrease in motivation (Australia). Post-traumatic stress disorders were reported in all the countries examined.

Agent-Based Simulation of the COVID-19 Epidemic in Russia.

The COVID-19 pandemic has created a public health emergency in Russia and across the world. The wavelike spread of the new coronavirus infection, caused by newly emerging variants of the coronavirus, has led to a high incidence rate in all subjects of the Russian Federation. It is becoming extremely topical to get the opportunity to manage the development of the epidemic and assess the impact of certain regulatory measures on this process. This will help government agencies make informed decisions to control the burden on healthcare organizations. It is often impossible to obtain such assessments without using modern mathematical models.

Emotional Contagion: Research on the Influencing Factors of Social Media Users' Negative Emotional Communication During the COVID-19 Pandemic.

During the epidemic, social media platforms were frequently used by users to express and spread negative emotions. Under emotional contagion, individual emotions gradually generalized into group emotions. At the same time, the public could not regulate their emotions and lacked access to release them rationally. This study explores the factors influencing the negative emotions' communication among social media users during the COVID-19 epidemic from the perspective of emotion contagion theory to discover the psychological mechanisms among the public. The questionnaire was tested for reliability and validity and then distributed online on Chinese social media platforms, and the data collected were statistically analyzed. The findings show that there are significant differences in negative emotional communication in social media among different age groups; the seven dimensions of deindividuation, risk perception, group identity, group efficacy, event stimulation, event publicness, and emotion contagion all have significant positive effects on users' negative emotional communication. This study aims to raise public awareness of negative emotions and promote the reconstruction and recovery of public mental health in the epidemic era.

Dual Stressors and Female Pre-school Teachers' Job Satisfaction During the COVID-19: The Mediation of Work-Family Conflict.

Online education has become a vital weapon to fight against the COVID-19 epidemic in the world. In the home-based online education environment, female pre-school teachers are expected to balance the dual roles of teacher and mother at the same time, which may trigger the work-family conflict. Although previous studies analyzed individual stressors, work-family conflict and its outcomes, there is little research on pre-school teachers' work and parenting experience during major public health emergencies. The current study examined the associations among work overload, parenting stress, work-family conflict, and job satisfaction during the COVID-19. Seven hundred eighteen female pre-school teachers with children who worked online at home participated in the study. Female pre-school teachers reported that the COVID-19 has increased work overload and parenting stress. Moreover, work overload was negatively associated with job satisfaction via its positive association with work-to-family conflict. Parenting stress was negatively associated with job satisfaction via both family-to-work conflict and work-to-family conflict. The study contributes to a better understanding of the association among female pre-school teachers' work overload, parenting stress, work-family conflict, and job satisfaction. Our findings highlighted potential avenues for interventions aimed at balancing female pre-school teachers' work and family and improving their job satisfaction during the COVID-19.

The experience of frontline nurses four months after COVID-19 rescue task in China: A qualitative study.

AIMS: The study was to explore the experience of frontline nurses four months after COVID-19 rescue task. BACKGROUND: Frontline medical staff are prone to follow-up mental health problems and different feeling after COVID-19 rescue task. However, the experience of frontline nurses after COVID-19 rescue task has not been well described. METHODS: The study used a qualitative study design with semi-structured interview guide. Individual semi-structured face-to-face interviews were conducted with 15 frontline nurses who were involved COVID-19 rescue task from two tertiary-A hospitals in Hefei, China from July 10, to August 28, 2020. We followed the consolidated criteria for reporting qualitative research (COREQ) checklist. RESULTS: Four main themes emerged from the interviews: recurring involuntary memories about the experience, feeling guilty and depressed, cultivation of occupational ability, increased professional pride and happiness. CONCLUSION: The study demonstrated that frontline nurses had both positive and negative experiences four months after COVID-19 rescue task. It is necessary to long-term follow up and attention to the experience of the frontline nurses after COVID-19 rescue task. These insights provide a specific direction for the psychological reconstruction of frontline nurses and the construction of nursing team. RELEVANCE TO CLINICAL PRACTICE: Nursing managers should formulate psychological reconstruction plan according to the experience of frontline nurses after COVID-19 rescue task, so as to relieve the psychological stress and promote the mental health of nurses. At the same time, we should strengthen the disaster rescue ability training of nurses should be strengthened to better respond to future rescue task.

Anxiety and Depression Among Imaging Doctors in Post-COVID-19 Period.

To investigate the mental state of medical imaging staff in Shandong Province, China, who have been on the forefront of the COVID-19 epidemic during its late stage in China. Questionnaires designed to assess anxiety and depression were administered on-location, and 5331 complete results were collected. SPSS software was used for statistical descriptions and analysis. Rates of anxiety disorders and depression among medical imaging workers in Shandong Province, China, were 6.1% and 6.5%, respectively, higher than those of anxiety and depression in Chinese residents before the epidemic. The outbreak in Xinjiang, China; virus mutation in Japan; and spread of the epidemic due to occupational errors were the primary reported causes of anxiety and depression among image workers. Medical imaging workers showed evidence of psychological abnormalities during the late stage of the epidemic in China.