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This study aimed to examine multilevel models posited to predict student perceptions of teacher feedback quality. A cross‐sectional survey design was used, involving 1072 middle school students. We incorporated two clusters of variables: (a) student characteristics (gender, prior knowledge, parent education, homework expectancy, homework value, homework cost, and help seeking) and (b) the characteristics...
Osteoporosis (OP) is a severe global health issue that has significant implications for productivity and human lifespan. Gut microbiota dysbiosis has been demonstrated to be closely associated with OP progression. Melatonin (MLT) is an important endogenous hormone that modulates bone metabolism, maintains bone homeostasis, and improves OP progression. Multiple studies indicated that MLT participates...