The vehicle scheduling problem (VSP) is one of the most important scheduling problems in public transportation systems 1, such as flight departure and arrival 2, airport ground service support 3, and ...

Employee scheduling aims to assign employees to shifts to satisfy daily workload and constraints. Some employee scheduling problems and their variants have been proven NP-hard, and a series of works ...

Excessive screen use by preschool-age children can lead to reduced sleep quality, exacerbating problems such as poor attention, hyperactivity and unstable mood, a new study suggests. Peer-reviewed ...