Abstract. Unmanned aerial vehicles could reduce risks in emergency response missions. The UAV firefighter team of Provincia autonoma di Trento proposes a new concept operations. A fleet drones placed strategically selected locations and operated from the main headquarters Trento. first UAV, with docking station, was on Marmolada glacier for trial.

Abstract Contact tracing is critical to controlling COVID-19, but most protocols only “forward-trace” notify people who were recently exposed. Using a stochastic branching-process model, we find that “bidirectional” identify infector individuals and their other infectees robustly improves outbreak control. In our bidirectional more than doubles the reduction in effective reproduction number ( R...