The Relationship between Grandparents' Violent Discipline and School Bullying Behavior among Left-behind Children.

Most left-behind children in rural China are raised by their grandparents, whose parenting style significantly impacts children's development. This study examined the association between grandparents' violent discipline and left-behind children's school bullying. This cross-sectional study recruited a sample of 462 left-behind children aged 10 to 15 years old (Age Mean = 12.372, 49.351% girls) from four rural primary and junior high schools in Chongqing, China. There was a significant positive association between corporal punishment (ß = .236, p < .001) and psychological aggression (ß = .272, p < .001) of grandparents and children's school bullying. Empathy and moral disengagement mediate the above association. Cross-gender comparisons indicated that corporal punishment had a greater positive relationship with school bullying in boys than girls (ßgirls = .154, p < .01; ßboys = .250, p < .001). At the same time, boys' moral disengagement was also more likely to lead to school bullying (ßgirls = .233, p < .001; ßboys = .337, p < .001). We discuss the implications of these findings for preventing bullying in schools for children left behind.

Decomposition-Reassembly Synthesis of a Silverton-Type Polyoxometalate 3D Framework: Semiconducting Properties and Photocatalytic Applications.

Polyoxometalate-based all-inorganic three-dimensional (3D) frameworks have recently attracted attention as a unique class of materials due to their unique physicochemical properties and a wide field of application with excellent prospects. We herein synthesized a novel all-inorganic 3D framework material based on cobalt-substituted Silverton-type polyoxometalate, H6{Co6W10O42[Co(H2O)4]3}·2H2O (Co9W10), which was successfully constructed using Na12[WCo3II(H2O)2(CoIIW9O34)2]·46-48H2O (Co5W19) and Co(NO3)2·6H2O as starting materials in a hydrothermal reaction via a decomposition-reassembly route together with the rational adjustment of pH values. Co9W10 has been structurally characterized using single-crystal X-ray diffraction. Photocurrent response, band-gap (Eg) value, and the VB-XPS spectrum have been measured to reveal the semiconducting property of Co9W10. Furthermore, we synthesized x% PTh/Co9W10 composites (PTh = polythiophene, x = 0.5, 1, 2, 5) for photodegradation of tetracycline hydrochloride (TH) to evaluate the photocatalytic activities of title composites. Due to the optimal molar ratio of hybrids and matching energy levels, 2% PTh/Co9W10 composites show the best photocatalytic activities among these composites.

Mother's Parenting Stress and Marital Satisfaction During the Parenting Period: Examining the Role of Depression, Solitude, and Time Alone.

This study examines the mechanism of maternal parenting stress on marital satisfaction based on the Vulnerability-Stress-Adaptation Model (VSAM), and draws on the needs theory to explore the role of alone time in marital relationships under different solitude preferences. The marital satisfaction Scale, Self-rating Depression Scale (SDS), Parenting Stress Scale (PSS), Preference for Solitude Scale (PSS), and alone time scale were used to conduct a questionnaire survey of 1,387 Chinese mothers in their parenting stage. The results found that: (1) in the overall group and the high and low solitude preference level group, depression plays a significant mediating role between parenting stress and marital satisfaction. (2) For mothers who prefer solitude, alone time can reduce the positive impact of parenting stress on depression, and but it cannot alleviate the negative impact of parenting stress and depression on marital satisfaction. (3) In the low solitude preference level group, alone time can aggravate the positive impact of parenting stress on depression and the negative impact of parenting stress on marital satisfaction.

Mothers' parenting stress, depression, marital conflict, and marital satisfaction: The moderating effect of fathers' empathy tendency.

BACKGROUND: The decreased marriage satisfaction has become one of the main reasons for the rising divorce rate. However, few studies have focused on the relationship between mother's parenting stress, mental health, and marriage satisfaction. This study addressed this research gap by examining the direct influence of mothers' parental stress on their marital satisfaction, and the indirect influence of depression and marital conflict. Additionally, we explored the moderating effect of fathers' empathy tendency. METHODS: Using a sample of parenting couples in Southwest China (n = 2,979) to conduct a questionnaire survey, a moderated mediation analysis was performed to simultaneously analyze the chain mediation of depression and marital conflict, and the moderating role of fathers'' empathy. RESULTS: The mother's childcare pressure was negatively correlated with marital satisfaction (ß = -0.478, p < 0.001). Depression and marital conflict have a chain mediating effect in explaining the relationship between mothers'' parenting stress and marital satisfaction (b = -0.064, 95% CI [-0.075, -0.053]). It is important to note that fathers with cognitive empathy can alleviate depression and marital conflict caused by the mothers' parental stress and a decrease in marital satisfaction, while fathers with high empathy can exacerbate these negative effects. CONCLUSION: The study's findings identify the serious impact of contemporary female parenting pressure on marital satisfaction and confirm the important role of husbands' empathy. LIMITATIONS: The scope of the survey is single, the parenting period is not staged, and there may be limitations such as overlapping stressors, which can be corrected in future research.

pH-Controlled assembly of [ZnW12O40]6--based hybrids from a 0D dimer to a 2D network: synthesis, crystal structure, and photocatalytic performance in transformation of toluene into benzaldehyde.

Polyoxometalate-based organic-inorganic hybrids have attracted considerable attention due to their fascinating structures and wide application prospects. In this work, using the same building blocks, ligands and metal ions (ZnW12O406-(ZnW12), 2,2'-bipyridine (2,2'-bipy), and Cu2+), we synthesized three new POM-based hybrids by controlling the pH values of the reaction systems. These three compounds {(Zn0.6(H2)0.4W12O40)[Cu(2,2'-bipy)(H2O)][Cu(2,2'-bipy)(H2O)2][Cu(2,2'-bipy)(H2O)3]}2·6H2O (1), (Me4N)2{ZnW12O40[Cu(2,2'-bipy)(H2O)][Cu(2,2'-bipy)(H2O)3]}·5H2O (2), and {(Zn0.5(H2)0.5W12O40)[Cu(2,2'-bipy)][Cu(2,2'-bipy)(H2O)][Cu(2,2'-bipy)(H2O)2]}·5H2O (3) have been structurally characterized by single-crystal X-ray diffraction. Compound 1 appears as a dimeric cluster structure, while compounds 2 and 3 appear as a 1D chain structure and a 2D network, respectively. The semiconducting properties of compounds 1-3 are different, which was demonstrated by band gap (Eg) and photocurrent response measurements. Compound 3 can efficiently catalyze the photooxidation of toluene to benzaldehyde with high selectivity using molecular oxygen as the oxidant component. Moreover, compound 3 was recycled and reused three times without significant degradation in conversion and selectivity. In addition, the mechanism of the photocatalytic reaction was also investigated.

An unprecedented polyoxometalate-based 1D double chain compound with opposite charges enables conductivity improvement.

A POM-based one-dimensional (1D) chain compound, {BW12O40[Cu(2,2'-bipy)2]2[Cu(2,2'-bipy)(H2O)]}{BW12O40[Cu(2,2'-bipy)2][Cu(2,2'-bipy)(H2O)2]}·7H2O, has been synthesized and structurally characterized, which represents an unprecedented 1D double chain structure with opposite charges. In contrast to common POMs, this compound exhibits a relatively high electrical conductivity of 1.17 × 10-9 S cm-1 at 25 °C. In addition, its semiconducting properties have also been investigated by application of photoelectrochemical sensing of H2O2.