Qianru Tiffany Yang, Jon R Star, Paul L Harris, Meredith L Rowe
Chinese parents' support of preschoolers' mathematical development
Journal of experimental child psychology
order clarify transmission mechanism impact mechanization occupational health miners provide empirical evidence development new quality productivity coal industry balances health efficiency august 2022 selected typical coal mine constructed comprehensive evaluation index miners occupational health questionnaire survey based fully connected neural network model bayesian model used verify influence mechanization level miners occupational health found predicted probability occupational diseases could used comprehensive indicator level occupational health providing basis early intervention prevention occupational diseases mechanization could directly promote improvement miners occupational health level also indirectly affect occupational health level influencing hazards level work intensity indirect effect mechanization work intensity positive indirect effect mechanization hazards level positive presented inverted ushaped process mechanization breakthrough semimechanized level would realize economies scale health protection impact prevention control occupational hazards would turn negative positive