If your interest is in "danger" as a general topic (particularly in Portuguese), there is significant research on natural hazards:
A helpful paper titled Perigos geológicos nos Açores: perigo sísmico explores seismic risks and geological dangers in the Azores region. Perigo
A qualitative study by Perigo (2025) explores the effectiveness of teacher evaluation models in Washington state. If your interest is in "danger" as a
Dr. Levi Perigo at the University of Colorado Boulder has published extensive work on and Network Orchestration : Perigo