Regional integration is widely promoted as a path to greener urban agglomerations, but its firm-level environmental effect remains uncertain because integration can also lower the cost of pollution relocation. This study examines how the regulatory gap between core and peripheral cities conditions this effect in China. Using data on 130,727 industrial firms in 137 cities across 16 urban agglomerations, we estimate firm environ...

The pathogenesis of uterine carcinosarcoma (UCS) remains unclear due to a few mature cell lines. Herein, we established a new cell line, ESCA, from a Chinese woman. Especially, three sublines, named ESCA-2, ESCA-3, ESCA-5, were isolated based on the rate of cells’ different sedimentation. All ESCA cells have been subcultured for more than 60 generations. ESCA sublines display different cell morphology and growth characteristic...