Reactive oxygen species (ROS), especially hydrogen peroxide (H2O2), has recently been reported to cause a significant increase in the production and expression of matrix metalloproteinase (MMPs), which are closely correlated...

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Correction for ‘Polysaccharides from Ulva prolifera O.F. Müller inhibit cell proliferation via activating MAPK signaling in A549 and H1650 cells’ by Juan Juan Yang et al., Food Funct., 2021, 12, 6915–6924, https://doi.org/10.1039/D1FO00294E.

Some representative steel structural buildings at home and abroad were discussed from the point of view of architectural form and function, structural system and construction, engineering cost and environmental protection et al. Then the common character of excellent designs and the deficiency of some controversial designs were separately summarized. The essential of steel structural buildings was generalized. Furthermore the criteria of excellent design in the current engineering construction were proposed and expounded from three aspects. At last how to produce excellent designs was explored.