Quantitative Assessment of Natural Ventilation in an Elementary School Classroom in the Context of COVID-19 and Its Impact in Airborne Transmission

Featured Application: Periodic ventilation can be a useful strategy for reducing the risk of any airborne transmitted disease. It is particularly well-suited for naturally ventilated environments in cold weathers, as it allows for a compromise between IAQ and thermal comfort, and does not require any modification to existing buildings. The importance of Indoor Air Quality (IAQ) has been highlighted by the COVID-19 pandemic, particularly due to the possibility of long-distance airborne transmission. Consequently, assessment of ventilation rates and estimation of infection risk has become a matter of the utmost importance. In this paper, a naturally ventilated elementary school classroom is studied, where carbon dioxide ((Formula presented.)) concentrations were measured during five months. Ventilation rates are calculated via a fully-mixed box model and the airborne risk of infection for SARS-CoV-2 is assessed. Risk results are found to steadily decline from winter to spring. Furthermore, analytical simulations for different scenarios are conducted. It is shown that periodic ventilation significantly reduces the transmission risk, even if it occurs only during very reduced time spans. The results show that periodic ventilation is a useful strategy for reducing the risk of any airborne transmitted disease. It is particularly well-suited for naturally ventilated environments in cold weathers, as it allows for a compromise between IAQ and thermal comfort, and does not require any modification to existing buildings. © 2022 by the authors.

Evaluation of burn out syndrome and resilience in Jaen physical therapists during the COVID-19 pandemic. Pilot study

Introduction: Although burnout syndrome has been extensively studied in healthcare workers, there are few studies that specifically address it in physical therapists, and when this has been done, the rates have been found to range from low to medium-high. The recent COVID-19 pandemic has been and continues to be a significant challenge for the healthcare system. In this scenario, it may be of interest to evaluate the burnout index in the group of physical therapists.

Spanish power distance in Twitter in the Spanish COVID-19 crisis

The objectives of this study are to suggest a specific taxonomy for the attitude markers used in Twitter after government decrees about coronavirus and to investigate if attitude markers indicate that power distance is accepted in Spain and if government decisions are respected. Finally, we study semantic webs in attitude markers. The corpus compiled for this study is composed by the tweets to the decrees of the Ministry of Health and Public Health from 12th to 16th March 2020. We analysed the data with the tools METOOL and GePhi. In the results it was observed that Spanish citizens preferred a closer relationship with power and it was noticed an increase in aggressive language. Finally, conclusions were drawn.