COVID-19 arrived in the world suddenly and unexpectedly. It caused major disruptions at economical, operational and other levels. In the case of flight traffic, the operations were reduced to 10% of their original levels. The question after COVID-19 is how to restart the operations and how to keep the balance between safety and capacity. In this paper we present an analysis using simulation techniques for understanding the impact in a security area of an important airport in Latin America; the airport of Mexico City. The results allow to illustrate the potential congestion given by the implemented covid-19 restriction, even when the traffic recovers only by 25% of the pre-covid-19 traffic. The congestion can be mitigated by applying some layout changes (snake queue vs parallel queue) and when more capacity is added to the system (extra security line). The results will raise situational awareness for airport stakeholders when implementing the actions suggested by different international institutions like WHO, IATA or ICAO.
BACKGROUND: Covid-19 has had a major negative impact on children's engagement in health-related behaviors. This study examines trends in children's screen time, outdoor play and sports club membership in pre- (2016-19), mid- (2020-21) and post- (2021-22) Covid years. Also, predicting factors (gender, age and active commuting) of these health-related behaviors are examined.METHODS: Data were collected via yearly self-report questionnaires among pupils in Grades 3-6 (mean age 10.14 ± 1.25 years; total n over the five cohorts = 6351, 50.8% girls). Multilevel path models were constructed in Mplus to examine whether children's screen time, outdoor play and sports club membership differed between pre-, mid- and post-Covid years; and which factors predicted engagement in these health-related behaviors (using data of all cohorts).RESULTS: During and after Covid-19, children's screen time was higher, while they engaged less in outdoor play and were less often member of a sports club than before. Although these negative trends peaked during Covid-19, they slowly seem to be returning to pre-Covid levels in recent year. Younger children, girls and active commuters had less minutes screen time per day and played outdoors more days per week; boys and active commuters were more often sports club member.CONCLUSIONS: Although in the first year post-Covid children seem to be engaging more in health-related behaviors than during Covid-19, we still found lower levels of engagement than in the years before Covid-19, underlining the importance of early intervention to ensure an appropriate amount of engagement in health-related behaviors for all children.
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Anaesthesiology residents at Leiden University Medical Center regularly undergo simulation training with a full-body manikin. This is a vital aspect of the clinical programme providing a stressful yet safe environment for effective critical resource management (CRM) training. Unfortunately, the COVID-19 pandemic made real-life simulations challenging due to organizational and preventive measures. As a result, we explored asynchronous training opportunities utilizing a multiplayer virtual reality (VR) simulation. VR simulations can create personalized scenarios, facilitating differentiated learning through enhanced sensory immersion. VR offers full immersion with a high potential for visual effects, simultaneously allowing changes in patient characteristics such as sex, weight, external trauma and age, which is impossible with regular manikin training. The three-step approach involved (1) identifying user requirements, (2) developing a prototype and (3) assessing the projectandapos;s viability and interest for expansion.
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