Transparency, collaboration, security, and digital sovereignty are the open source values that are also important to many European countries and institutions.

Clean air is a requirement for life, and the quality of indoor air is a health determinant since people spend most of their daily time indoors.

A proposal for a predictive analysis model for bike-sharing systems based on a mixed model of statistical and machine-learning approaches.The model assumes a Poisson distribution on bike station arrival and departures.