In this work, the authors systematically advance macro-micro integration with feedback (MMIF) as a transformative paradigm for analyzing urban mega-mobility systems, synthesizing the state-of-the-art developments in typical constituent subsystems under this unified perspective. The MMIF paradigm bridges the gap between theoretical abstraction and empirical practice, contributing to scientifically sound urban development by harmonizing emergent patterns with granular behavioral dynamics. Building upon this paradigm, we investigate the key methods and technologies empowered by artificial intelligence (AI) that enable MMIF, and critically analyze the enduring challenges and prospective research directions. As urban mobility systems increasingly serve as testbeds for complexity science, the MMIF paradigm using AI promises to reshape interdisciplinary collaboration, offering a blueprint for building intelligent, adaptive, and human-centric cities.

A joint research team from NIMS, Kyoto Institute of Technology (KIT), Japan Synchrotron Radiation Research Institute (JASRI), University of Hyogo, Tohoku University, and the Technical University of Darmstadt, developed a novel materials design approach that achieves a giant cooling effect and excellent durability in magnetic cooling materials whose temperature changes when a magnetic field is switched on and off. The team found that, by precisely controlling the chemistry of covalent bonds within the unit cell can reshape the energy landscape of the phase transition, thereby eliminating hysteresis and its associated irreversible energy losses. Based on this finding, the team achieved a rare combination of giant cooling effect and excellent cyclic stability. This research result paves a new pathway toward energy-efficient magnetic cooling technology and was published in Advanced Materials on December 18, 2025.

New research from the University of South Florida published in the Journal of Hospitality and Tourism Technology reveals that while smart AI concierges are great for quick, 24/7 help and for easing hospitality staff workload, most guests still prefer face-to-face customer service, especially with requests that involve an emotional attachment.

A hair-thin microphone made entirely of silica fiber can detect a large range of ultrasound, sound frequencies beyond the reach of the human ear.