Abstract One key aspect of understanding the solar dynamo mechanism and evolution magnetism is to properly describe emergence active regions. In this Letter, we Lagrangian photospheric flows dynamics during a simulated flux that produces an region formed by pores. We analyze lower flow organization prior, following rise region, uncovering repelling attracting structures act as sources sinks for...

Solar flares and coronal mass ejections are among the most prominent manifestations of magnetic activity Sun. The strongest events them tend to occur in active regions (ARs) that large, complex, dynamically evolving. However, it is not clear what key observational features such ARs are, how these produced. This article answers fundamental questions based on morphological characteristics flare-p...

The article by Brenna and Spandonaro on interregional mobility for acute hospital care in Italy raises important issues concerning social and territorial equity in a healthcare system. Based on Regions and private providers’ strategic behavior, the hypothesis adopted to explain patient cross-border mobility (CBM), demonstrated by statistical analysis, may be further explored using qualitative m...