Background:Maternal mental health literacy is a cognitive resource that may support preschoolers’emotional development,yet its influence on emotional regulation and the related mechanisms remains unclear.This study e...Background:Maternal mental health literacy is a cognitive resource that may support preschoolers’emotional development,yet its influence on emotional regulation and the related mechanisms remains unclear.This study examined whether maternal depressive mood and democratic parenting form a chain pathway linking maternal mental health literacy to preschoolers’emotional regulation ability.Methods:Mothers of 544 preschoolers in China’s Mainland completed an online questionnaire that assessed maternal mental health literacy,depressive mood,democratic parenting,and child emotional regulation.Structural path analysis was conducted with child age and gender controlled.Indirect effects were tested using 5000 bootstrap samples.Results:Maternal mental health literacy did not directly predict preschoolers’emotional regulation.Three indirect effects were significant.The pathway through depressive mood had an effect of 0.005,the pathway through democratic parenting had an effect of 0.004,and the chain pathway through depressive mood and democratic parenting had an effect of 0.002.All confidence intervals excluded 0.Conclusion:Maternal mental health literacy influences preschoolers’emotional regulation only through maternal depressive mood and democratic parenting,indicating that cognitive resources affect child emotional outcomes through emotional and behavioral processes rather than a direct pathway.展开更多
To ensure tasks can be completed after a free-swinging joint failure occurs,a multi-stage regulation strategy of space manipulators is proposed.Considering all terms of the dynamics equation,an evaluation model of the...To ensure tasks can be completed after a free-swinging joint failure occurs,a multi-stage regulation strategy of space manipulators is proposed.Considering all terms of the dynamics equation,an evaluation model of the regulation ability(EMRA)of active joints over the fault joint is established based on the fuzzy entropy.And then a multi-stage regulation strategy based on the EMRA is designed to regulate the fault joint.The strategy divides the regulation process into several stages,and select a certain active joint to regulative the fault joint in every stage.With this multi-stage regulation strategy,the fault joint can be regulated to the desired angle without huge torque on regulative joints.The simulation is carried out with a 7-DOF space manipulator,verifying the correctness and effectiveness of the multi-stage regulation strategy.The strategy has three advantages:Coriolis and centrifugal terms are both considered for the first time in selecting the regulative joint,making the selection result more in line with the actual regulation process;The influence of the model uncertainty is eliminated in establishing the EMRA,making the evaluation of regulative ability more precise;The fault joint is successfully regulated to the desired angle without huge torque on regulative joints.展开更多
文摘Background:Maternal mental health literacy is a cognitive resource that may support preschoolers’emotional development,yet its influence on emotional regulation and the related mechanisms remains unclear.This study examined whether maternal depressive mood and democratic parenting form a chain pathway linking maternal mental health literacy to preschoolers’emotional regulation ability.Methods:Mothers of 544 preschoolers in China’s Mainland completed an online questionnaire that assessed maternal mental health literacy,depressive mood,democratic parenting,and child emotional regulation.Structural path analysis was conducted with child age and gender controlled.Indirect effects were tested using 5000 bootstrap samples.Results:Maternal mental health literacy did not directly predict preschoolers’emotional regulation.Three indirect effects were significant.The pathway through depressive mood had an effect of 0.005,the pathway through democratic parenting had an effect of 0.004,and the chain pathway through depressive mood and democratic parenting had an effect of 0.002.All confidence intervals excluded 0.Conclusion:Maternal mental health literacy influences preschoolers’emotional regulation only through maternal depressive mood and democratic parenting,indicating that cognitive resources affect child emotional outcomes through emotional and behavioral processes rather than a direct pathway.
基金co-supported by the Fundamental Research Funds for the Central Universities of China(No.2019PTB012)the Science and Technology Foundation of State Key Laboratory of China(No.6142210180302)the National Natural Science Foundation of China(No.51975059)。
文摘To ensure tasks can be completed after a free-swinging joint failure occurs,a multi-stage regulation strategy of space manipulators is proposed.Considering all terms of the dynamics equation,an evaluation model of the regulation ability(EMRA)of active joints over the fault joint is established based on the fuzzy entropy.And then a multi-stage regulation strategy based on the EMRA is designed to regulate the fault joint.The strategy divides the regulation process into several stages,and select a certain active joint to regulative the fault joint in every stage.With this multi-stage regulation strategy,the fault joint can be regulated to the desired angle without huge torque on regulative joints.The simulation is carried out with a 7-DOF space manipulator,verifying the correctness and effectiveness of the multi-stage regulation strategy.The strategy has three advantages:Coriolis and centrifugal terms are both considered for the first time in selecting the regulative joint,making the selection result more in line with the actual regulation process;The influence of the model uncertainty is eliminated in establishing the EMRA,making the evaluation of regulative ability more precise;The fault joint is successfully regulated to the desired angle without huge torque on regulative joints.
