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The present research examines the relationship between parenting style and the development of prosocial behaviour of preschool children in China and how this relationship is moderated by family income, an everchanging factor caused by rapid economic development in modern China. A total of 188 parents of preschool children responded to the questionnaires covering both family parenting style and prosocial behaviour scales for preschool children. The results showed that democratic parenting style has a significantly positive prediction on the total score and all dimensions of prosocial behaviour whereas neglecting parenting style is significantly and negatively correlated with the total score and dimensions of sharing and comfort in the prosocial behaviour. Authoritarian parenting style negatively predicts the morality dimension of the prosocial behaviour. Moreover, family income significantly moderates the relationship between parenting style and prosocial behaviour. The results suggest the importance of adopting positive parenting style to cultivate preschool children's prosocial behaviour.

RFID (Radio Frequency Identification), which transmits control data through electronic tags in a non-contact manner, provides a new approach for efficient and low-cost remote control of oil downhole tools. However, the interference of harsh downhole environments and the high-speed movement of tags seriously affect the performance of the current downhole reader. To effectively address this issue, in this study, a novel downhole RFID reader is presented. By introducing the half-duplex communication protocol to replace the current full-duplex communication protocol in the hardware circuits of the reader, its tag recognition ability can be improved. Then, the corresponding hardware circuits and software programs are designed. Furthermore, a sparse solenoid antenna is adopted to replace the traditional tightly wound solenoid antenna, which can provide a longer reading area range to cope with the high-moving tag, and its total length and spacing parameters between adjacent coils are designed in detail. The test results show that the proposed RFID reader based on a half-duplex communication protocol can communicate with tags normally, and its sparse solenoid antenna provides significantly more tag reading times than traditional tightly wound solenoid antennas under the same antenna inductance. [ABSTRACT FROM AUTHOR]

The FeCl3‐catalyzed aerobic oxidation of ketones always gives rise to the α‐C−C cleavage product, having challenges to afford hydroxyl keto compounds. Here we report an effective control of the main product from keto acid to α‐hydroxyl ketone, by reducing the concentration of FeCl3 catalyst, together with the use of DMSO as the solvent. In addition, mechanistic investigations suggested the same FeCl3‐coordinated peroxide intermediate for both hydroxylation and C−C cleavage routes, and emphasize the role of DMSO as both ligand and reductant. This work provides a new approach for selective aerobic oxidation under Lewis acid catalysis. [ABSTRACT FROM AUTHOR]

The FeCl 3 -catalyzed aerobic oxidation of ketones always gives rise to the α-C-C cleavage product, having challenges to afford hydroxyl keto compounds. Here we report an effective control of the main product from keto acid to α-hydroxyl ketone, by reducing the concentration of FeCl 3 catalyst, together with the use of DMSO as the solvent. In addition, mechanistic investigations suggested the same FeCl 3 -coordinated peroxide intermediate for both hydroxylation and C-C cleavage routes, and emphasize the role of DMSO as both ligand and reductant. This work provides a new approach for selective aerobic oxidation under Lewis acid catalysis., (© 2022 Wiley-VCH GmbH.)