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The Thomas–Reiche–Kuhn (TRK) sum rule is a fundamental consequence of the position–momentum commutation relation for an atomic electron, and it provides an important constraint on the transition matrix elements for...

Laser ablation in liquid is a scalable nanoparticle production method with applications in areas like catalysis and biomedicine. Due to laser-liquid interactions, different energy dissipation channels such as absorption ...

BackgroundMetabolic composite indices effectively predict type 2 diabetes mellitus (T2DM) in the general population. However, whether these indices retain predictive value in patients with nonalcoholic fatty liver diseas...

Ultrafast pulses, particularly those with durations under 100 fs, are crucial in achieving unprecedented precision and control in light–matter interactions. However, conventional on-chip photonic platforms are not in...

Abstract Objectives To analyze spatiotemporal clustering patterns of severe hand foot and mouth disease (HFMD) in children aged ≤ 5 years, quantify the associations between meteorological factors and severe HFMD in...