#structural transition
- Arco — A term used as a direction in instrumental music, instructing performers of stringed instruments (violin, viola, cello, double bass) to resume playing the notes with the bow, following a structural section where the strings were plucked with the fingers (pizzicato).
- Artificialization — The act of artificializing and its result; a structural and long-term process through which a natural or agricultural area is transformed into built, waterproofed, or industrially developed land. Soil artificialization constitutes one of the primary causes of biodiversity degradation, habitat fragmentation, and the amplification of urban flooding risks.