The impact of perceived life stress and online social support on university students' mental health during the post-COVID era in Northwestern China: gender-specific analysis.

BACKGROUND: Before the pandemic, research had already established the potential impact of perceived life stress and social support on the mental health status of Chinese students. However, in the Post-COVID Era, the specific mechanisms linking these variables and the distinct role of online social support remain relatively unexplored. METHODS: After the cessation of China's dynamic zeroing policy, a total of 1180 university students from Northwestern China participated in this study by completing a demographic questionnaire, as well as self-report measures assessing mental health, perceived life stress, and online social support. RESULTS: Approximately 25% of students exhibited psychological symptoms. When examining different categories of perceived life stress, males reported experiencing a significantly greater impact in terms of punishment and interpersonal relationships compared to females. Females experienced significantly higher levels of learning pressure compared to males. Specific types of perceived life stress were found to be significant predictors of students' mental health status. Moreover, online social support was identified as a significant moderator in the relationship between all types of perceived life stress and mental health, irrespective of gender. CONCLUSION: Our study findings unveiled two significant aspects: Firstly, the impact of perceived life stress on the mental health of students was identified as a risk factor. Secondly, the role of online social support emerged as a protective factor, particularly in the post-pandemic context. Additionally, gender-specific patterns were observed in these relationships.

A tutorial on Bayesian structural equation modelling: Principles and applications.

This paper explores the utilisation of Bayesian structural equation modelling (BSEM) in psychology, highlighting its advantages over frequentist methods for handling complex models and small sample sizes. Basic concepts and fundamental issues relevant to BSEM are introduced, such as prior setting, model convergence, and model fit evaluation and so on. The paper also provides illustrative examples of commonly employed BSEMs, including confirmatory factor analysis (CFA) models, mediation models and multigroup CFA models, accompanied by empirical data and computer codes to facilitate implementation. Our goal is to provide researchers with novel ideas for empirical research and equip them to overcome challenges inherent to traditional methods. As BSEM continues to gain traction in various fields, we anticipate its development will feature improved methods, techniques and reporting standards.

In the presence and absence of conflicting testimony, children's selective trust in the in-group informant in moral judgment and knowledge access.

In this study, we assessed whether the trust model formed by children in a moral judgment context with an inaccurate in-group informant affected their corresponding trust model in the knowledge access context and whether conditions (the presence of conflicting testimony: an inaccurate in-group informant paired with an accurate out-group informant; the absence of conflicting testimony: only an inaccurate in-group informant) influenced the trust model. Children aged 3 to 6 years (N = 215; 108 girls) in blue T-shirts as in-group members completed selective trust tasks in the moral judgment and knowledge access contexts. Results for moral judgment showed that children under both conditions were more likely to trust informants based on accurate judgments and gave less consideration to group identity. Results for knowledge access showed that in the presence of conflicting testimony, 3- and 4-year-olds trusted the in-group informant at chance, but 5- and 6-year-olds trusted the accurate informant. In the absence of conflicting testimony, 3- and 4-year-olds agreed more with the inaccurate in-group informant, but 5- and 6-year-olds trusted the in-group informant at chance. The results indicated that older children considered the accuracy of the informant's previous moral judgment for selective trust in the context of knowledge access while ignoring group identity, but that younger children were affected by in-group identity. The study found that 3- to 6-year-olds' trust in inaccurate in-group informants was conditional and that their trust choices appeared to be experimentally conditioned, domain specific, and age differentiated.

Risky or protective? Online social support's impact on NSSI amongst Chinese youth experiencing stressful life events.

BACKGROUND: This study was designed to investigate potential gender differences in the interrelations between different types of stressful life events and non-suicidal self injury (NSSI) among Chinese youth, as well as to test the direct and moderating impacts of online social support on Chinese students' NSSI engagement under the pressure of different types of stressful life events. METHODS: Based on the data of 2200 students from middle - highschools and universities in Northwestern China, gender difference (male/female binary) in stressful life events, online social support, NSSI and their correlations were analyzed in the study. RESULTS: Among different types of stressful life events, male students were reported to experience a significantly higher impact of punishment and interpersonal relationship than females. Female students only experienced significantly higher learning pressure than males; Gender difference was not indentified in NSSI among youth; Stressful life events related to punishment could significantly predict NSSI engagement among males. Stressful life events related to learning pressures, interpersonal relationships, and adaption were significantly correlated to NSSI engagement among females; Online social support didn't had a significant direct effect on youth's NSSI, although it did significantly moderate the relationship between specific types of stressful life events (i.e., loss, interpersonal relationships, adaption among males and all types among females) and their NSSI. CONCLUSION: The present study has provided evidence of specified types of stressful life events being risk factors in affecting youth's NSSI: For male students, the higher impacts of stressful life events related to punishment they experienced, the more likely they were about to engage in NSSI. For female students, stressful life events related to learning pressure, interpersonal relationships and adaption were all proved as significant predictors and risky factors of female youth's NSSI; Online social support did not impact on individual's NSSI engagement directly, but moderated it significantly as a protective factor.

The longitudinal relationship between sleep problems and school burnout in adolescents: A cross-lagged panel analysis.

INTRODUCTION: Despite the growing body of cross-sectional research linking sleep problems and school burnout, hardly any research has investigated the longitudinal relationship between these two constructs. The aim of this study was to examine the bidirectional association between sleep problems and school burnout in middle school students. METHODS: A prospective design was used incorporating four time points (approximately 6-month interval). The participants were 1226 (50.3% girls) middle school students from 4 public schools who were in 7th grade at baseline. On average, participants were approximately 12.5 years old at the beginning of the study (Mage = 12.73, SD = 0.68). All participants completed self-report measures in classrooms during regular school hours. The data were analyzed using a cross-lagged structural equation model. We also examined the stability of sleep problems and school burnout in time, and investigated the moderating role of gender. RESULTS: The results indicated there is a moderate stability for both sleep problems and school burnout, and those students with sleep problems were more likely to develop school burnout, and vice versa. Gender did not moderate the bidirectional relationship. CONCLUSIONS: These results suggest that future studies should investigate whether implementing intervention for sleep problems can decrease the occurrence of school burnout and whether interventions targeting school burnout can improve sleep problems.

[Research progress in mechanism of berberine's antitumor action].

Malignant tumor, an important factor threatening human life and health, brings huge economic burden to patients. At present, chemoradiotherapy is still the main treatment method for tumor diseases, but there are also great side effects when it plays a therapeutic role. Traditional Chinese medicine in the prevention and treatment of tumor diseases has many advantages such as few side effects, improving the physiological state of patients, and slowing down the side effects of radiotherapy and chemotherapy. Berberine is an effective component of rhizoma coptidis, with a very good antitumor effect. It can inhibit tumor cell proliferation, promote tumor cell apoptosis, inhibit tumor metastasis and angiogenesis, regulate tumor autophagy, reverse multi-drug resistance of tumor, regulate the body immunity, and affect tumor metabolic reprogramming to play its role. Compared with chemical preparations, berberine has a wide range of sources, with high safety and easy access, and has great potential in the prevention and treatment of malignant tumors. In this article, we would mainly review the research progress on the antitumor mechanism of berberine in recent years.

Concomitant carcinoma in situ may not be a prognostic factor for patients with bladder cancer following radical cystectomy: a PRISMA-compliant systematic review and meta-analysis.

BACKGROUND: Numerous recent studies have shown that concomitant carcinoma in situ (CIS) can be closely associated with the prognosis of patients with bladder cancer (BCa). However, the prognostic value of CIS in BCa is still not conclusive. Hence, we performed a systematic review and meta-analysis to explore the association between CIS and clinicopathological features and the prognostic value for BCa following radical cystectomy. METHODS: We performed this study in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Relevant studies were systematically collected from PubMed, EMBASE, and Web of Science, with an expiration date of August 2018. Hazard ratios and 95% confidence intervals (CIs) were pooled to assess the intensity of association. All data were analyzed by Stata 12.0. Moreover, heterogeneity and publication bias were determined, and sensitivity analysis was performed to examine whether the findings of the meta-analysis were robust. RESULTS: A total of 18,845 patients from 24 studies were included in the analysis. Our results indicated that CIS has no significant correlation with cancer-specific mortality (CSM) (pooled HR = 0.97, 95% CI 0.93-1.00, p = 0.059), overall mortality (OM) (pooled HR = 0.93, 95% CI 0.85-1.01, p = 0.076), overall survival (OS) (pooled HR = 1.04, 95% CI 0.96-1.12, p = 0.386), cancer-specific survival (CSS) (pooled HR = 1.06, 95% CI 0.97-1.16, p = 0.186), recurrence-free survival (RFS) (HR = 1.05, 95% CI 0.99-1.11, p = 0.098) or recurrence (pooled HR = 1.04, 95% CI 0.98-1.11, p = 0.212) in BCa patients. In addition, CIS was not correlated with gender (male vs. female, OR = 1.00, 95% CI 0.74-1.34, p = 0.978), pathological stage (III/IV vs. I/II: OR = 0.74, 95% CI 0.50-1.10, p = 0.132), tumor grade (1/2 vs. 3: OR = 3.38, 95% CI 0.73-15.65, p = 0.119), soft tissue surgical margin (STSM) (+ vs. - : OR = 1.20, 95% CI 0.97-1.48, p = 0.093) or lymphovascular invasion (LVI) (+ vs. - : OR = 0.92, 95% CI 0.62-1.38, p = 0.702),but was closely related to adjuvant chemotherapy (ACT) (yes vs. no, OR = 1.17, 95% CI 1.03-1.32, p = 0.019). Furthermore, these findings were demonstrated to be reliable by our sensitivity and subgroup analysis. CONCLUSIONS: The prognostic value of CIS in BCa remains inconclusive in patients submitted to RC. Our data indicated that CIS may have no significant correlation with the prognosis and clinicopathological parameters of BCa patients, and also may not be applied to risk stratification or individualized therapy in BCa patients. Further research should be conducted to confirm our findings.

Clinicopathological factors in bladder cancer for cancer-specific survival outcomes following radical cystectomy: a systematic review and meta-analysis.

BACKGROUND: Assessing the prognostic significance of specific clinicopathological features plays an important role in surgical management after radical cystectomy. This study investigated the association between ten clinicopathological characteristics and cancer-specific survival (CSS) in patients with bladder cancer. METHODS: In accordance with the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines, a literature search was conducted through the PubMed, EMBASE and Web of Science databases using appropriate search terms from the dates of inception until November 2018. Pooled hazard ratios (HRs) with 95% confidence intervals (CIs) were calculated to evaluate the CSS. Fixed- or random-effects models were constructed according to existence of heterogeneity. RESULTS: Thirty-three articles met the eligibility criteria for this systematic review, which included 19,702 patients. The overall results revealed that CSS was associated with advanced age (old vs. young: pooled HR = 1.01; 95% CI:1.00-1.01; P < 0.001), higher tumor grade (3 vs. 1/2: pooled HR = 1.29; 95% CI:1.15-1.45; P < 0.001), higher pathological stage (3/4 vs. 1/2: pooled HR = 1.60; 95% CI:1.37-1.86; P < 0.001), lymph node metastasis (positive vs. negative: pooled HR = 1.51; 95% CI:1.37-1.67; P < 0.001), lymphovascular invasion (positive vs. negative: pooled HR = 1.36; 95% CI:1.28-1.45; P < 0.001), and soft tissue surgical margin (positive vs. negative: pooled HR = 1.42; 95% CI:1.30-1.56; P < 0.001). However, gender (male vs. female: pooled HR = 0.98; 95% CI: 0.96-1.01; P = 0.278), carcinoma in situ (positive vs. negative: pooled HR = 0.98; 95% CI: 0.88-1.10; P = 0.753), histology (transitional cell cancer vs variant: pooled HR = 0.90; 95% CI: 0.79-1.02; P = 0.089) and adjuvant chemotherapy (yes vs. no: pooled HR = 1.16; 95% CI: 1.00-1.34; P = 0.054) did not affect CSS after radical resection of bladder cancer. CONCLUSIONS: Our results revealed that several clinicopathological characteristics can predict CSS risk after radical cystectomy. Prospective studies are needed to further confirm the predictive value of these variables for the prognosis of bladder cancer patients after radical cystectomy.

Tumor necrosis as a prognostic variable for the clinical outcome in patients with renal cell carcinoma: a systematic review and meta-analysis.

BACKGROUND: Tumor necrosis (TN) correlates with adverse outcomes in numerous solid tumors. However, its prognostic value in renal cell carcinoma (RCC) remains unclear. In this study, we performed a meta-analysis to evaluate associations between TN and cancer-specific survival (CSS), overall survival (OS), recurrence-free survival (RFS) and progression-free-survival (PFS) in RCC. METHODS: Electronic searches in PubMed, EMBASE and Web of Science were conducted according to the PRISMA statement. Hazard ratios (HRs) and 95% confidence intervals (95% CIs) were calculated to evaluate relationships between TN and RCC. A fixed- or random-effects model was used to calculate pooled HRs and 95%CIs according to heterogeneity. RESULTS: A total of 34 cohort studies met the eligibility criteria of this meta-analysis. The results showed that TN was significantly predictive of poorer CSS (HR = 1.37, 95% CI: 1.23-1.53, p < 0.001), OS (HR = 1.29, 95% CI: 1.20-1.40, p < 0.001), RFS (HR = 1.55, 95% CI: 1.39-1.72, p < 0.001) and PFS (HR = 1.31, 95% CI: 1.17-1.46, p < 0.001) in patients with RCC. All the findings were robust when stratified by geographical region, pathological type, staging system, number of patients, and median follow-up. CONCLUSIONS: The present study suggests that TN is associated with CSS, OS, RFS and PFS clinical outcomes of RCC patients and may serve as a predictor of poor prognosis in these patients.

Surgical margin status and its impact on prostate cancer prognosis after radical prostatectomy: a meta-analysis.

BACKGROUND AND PURPOSE: Positive surgical margins (PSMs) correlate with adverse outcomes in numerous solid tumours. However, the prognostic value of PSMs in prostate cancer (PCa) patients who underwent radical prostatectomy remains unclear. Herein, we performed a meta-analysis to evaluate the association between PSMs and the prognostic value for biochemical recurrence-free survival (BRFS), cancer-specific survival (CSS), overall survival (OS), cancer-specific mortality (CSM) and overall mortality (OM) in PCa patients. MATERIALS AND METHODS: According to the PRISMA statement, online databases PubMed, EMBASE and Web of Science were searched to identify relevant studies published prior to February 2018. The hazard ratios (HRs) and 95% confidence intervals (95% CIs) were calculated to evaluate the relationship between PSMs and PCa. RESULTS: Ultimately, 32 cohort studies that met the eligibility criteria and involved 141,222 patients (51-65,633 per study) were included in this meta-analysis. The results showed that PSMs were significantly predictive of poorer BRFS (HR = 1.35, 95% CI 1.28-1.48, p < 0.001), CSS (HR = 1.49, 95% CI 1.16-1.90, p = 0.001) and OS (HR = 1.11, 95% CI 1.02-1.20, p = 0.014). In addition, PSMs were significantly associated with higher risk of CSM (HR = 1.23, 95% CI 1.16-1.30, p < 0.001) and OM (HR = 1.09, 95% CI 1.02-1.16, p = 0.009) in patients with PCa. CONCLUSIONS: Our study suggests that the presence of a histopathologic PSM is associated with the clinical outcomes BRFS, CSS, OS, CSM and OM in patients with PCa, and PSMs could serve as a poor prognostic factor for patients with PCa.

Perineural invasion as an independent predictor of biochemical recurrence in prostate cancer following radical prostatectomy or radiotherapy: a systematic review and meta-analysis.

BACKGROUND: Although numerous studies have shown that perineural invasion (PNI) is linked to prostate cancer (PCa) risk, the results have been inconsistent. This study aimed to explore the association between PNI and biochemical recurrence (BCR) in patients with PCa following radical prostatectomy (RP) or radiotherapy (RT). METHODS: According to the PRISMA statement, we searched the PubMed, EMBASE, Chinese National Knowledge Infrastructure (CNKI) and Wan Fang databases from inception to May 2017. Hazard ratios (HRs) and 95% confidence intervals (95% CIs) were extracted from eligible studies. Fixed or random effects model were used to calculate pooled HRs and 95% CIs according to heterogeneity. Publication bias was calculated by Begg's test. RESULTS: Ultimately, 19 cohort studies that met the eligibility criteria and that involved 13,412 patients (82-2,316 per study) were included in this meta-analysis. The results showed that PNI was associated with higher BCR rates in patients with PCa after RP (HR=1.23, 95% CI: 1.11, 1.36, p<0.001) or RT (HR=1.22, 95% CI: 1.12, 1.34, p<0.001). No potential publication bias was found among the included studies in the RP group (p-Begg = 0.124) or the RT group (p-Begg = 0.081). CONCLUSIONS: This study suggests that the presence of PNI by histopathology is associated with higher risk of BCR in PCa following RP or RT, and could serve as an independent prognostic factor in patients with PCa.

Positive surgical margin is associated with biochemical recurrence risk following radical prostatectomy: a meta-analysis from high-quality retrospective cohort studies.

BACKGROUND AND PURPOSE: Although numerous studies have shown that positive surgical margin (PSM) is linked to biochemical recurrence (BCR) in prostate cancer (PCa), the research results have been inconsistent. This study aimed to explore the association between PSM and BCR in patients with PCa following radical prostatectomy (RP). MATERIALS AND METHODS: In accordance with the guidelines of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA), PubMed, EMBASE and Wan Fang databases were searched for eligible studies from inception to November 2017. The Newcastle-Ottawa Scale was used to assess the risk of bias of the included studies. Meta-analysis was performed by using Stata 12.0. Combined hazard ratios (HRs) and their corresponding 95% confidence intervals (CIs) were calculated using random-effects or fixed-effects models. RESULTS: Ultimately, 41 retrospective cohort studies of high quality that met the eligibility criteria, comprising 37,928 patients (94-3294 per study), were included in this meta-analysis. The results showed that PSM was associated with higher BCR risk in both univariate analysis (pooled HR = 1.56; 95% CI 1.46, 1.66; p < 0.001) and multivariate analysis (pooled HR = 1.35; 95% CI 1.27, 1.43; p < 0.001). Moreover, no potential publication bias was observed among the included studies in univariate analysis (p-Begg = 0.971) and multivariate analysis (p-Begg = 0.401). CONCLUSIONS: Our meta-analysis demonstrated that PSM is associated with a higher risk of BCR in PCa following RP and could serve as an independent prognostic factor in patients with PCa.

The effect of nuclear factor erythroid 2-related factor/antioxidant response element signalling pathway in the lanthanum chloride-induced impairment of learning and memory in rats.

Lanthanum exerts adverse effects on the central nervous system. However, the mechanism underlying these adverse effects has not been clarified. It is known that oxidative stress plays an important role in neurological injuries induced by harmful factors. Nuclear factor erythroid 2-related factor (Nrf2) is very important in the response to oxidative stress in tissues and cells. The purpose of this study was to explore the effect of lanthanum chloride (LaCl3 ) on the spatial learning and memory of rats and to determine whether the Nrf2/antioxidant response element pathway acts in the hippocampus. Four groups of Wistar rats were exposed to 0 mM, 9 mM, 18 mM or 36 mM LaCl3 through their drinking water from the day of birth to 2 months after weaning. The results showed that LaCl3 impaired the spatial learning and memory of the rats, damaged the neuronal ultrastructure, increased reactive oxygen species levels and significantly down-regulated Nrf2 as well as the mRNA and protein expression of Nrf2-regulated genes, including NADP(H): dehydrogenase quinone 1, haeme oxygenase-1, superoxide dismutase 2, glutathione peroxidase 1, glutathione-S-transferase, γ-glutamine cysteine synthase and glutathione reductase, in the hippocampus. This study suggests that LaCl3 can impair the spatial learning and memory of rats, possibly by perturbing the Nrf2/antioxidant response element signalling pathway.

[A clinical observation of cool-tip radiofrequency ablation assisted enucleation for giant renal angiomyolipoma].

OBJECTIVE: To initially explore the clinical effect of cool-tip radiofrequency ablation combined with enucleation for the giant hamartoma of kidney with narrow base and export-oriented way of growth. METHODS: The clinical date of 15 patients including 6 male and 9 female with special hamartoma of kidney underwent cool-tip radiofrequency ablation assisted enucleation from July 2011 to October 2014 were reviewed.The median age was 49 years (ranging from 35 to 71 years). There were 6 cases with left renal tumor, 8 cases with right renal tumor and 1 case with solitary kidney tumor.All patients were confirmed by B ultrasound or CT scan, the mean diameter of hamartoma of kidney was 9.7 cm(8.5-12.7)cm, all tumors were located distant from the collecting system and presents with a special way of growth.The preoperative hemoglobin was (129±18)g/L, SCr was (92±41)µmol/L, glomerular filtration rate (GFR) was (32±12)ml·min(-1)·1.73 m(-2). RESULTS: Cool-tip radiofrequency ablation assisted enucleation was technically successful in all patients.The mean operative duration was (115±31)minutes, and the average intraoperative bleeding was (72±21)ml with no blooding transfusion.The postoperative hospital stay was(7±2)days, and the postoperative hemoglobin was(129±18)g/L, SCr (92±41)µmol/L, GFR(30±15)ml·min(-1)·1.73 m(-2). No statistic change of hemoglobin and SCr or glomerular filtration rate after operations(all P>0.05). Postoperative pathology showed that all cases were hamartoma of kidney.During a mean follow-up period of 19.5 months, none of them had local tumor recurrence or chronic renal insufficiency. CONCLUSIONS: Cool-tip radiofrequency ablation assisted enucleation is both safe and effective in the treatment of huge hamartoma of kidney with a narrow base and export-oriented way of growth. The short-term follow-up shows a satisfactory therapeutic effect.

Analysis of six organophosphorus pesticide residues in apples and pears using cloud-point extraction coupled with HPLC-UV.

A cloud-point extraction (CPE) method with Triton X-114 has been developed for analysis of six organophosphorus pesticides (OPPs) in apples and pears. In this CPE procedure, the effects of the surfactant volume, mass of sodium chloride, equilibrium temperature, equilibrium time, and pH on the extraction procedure were investigated. Under the optimal CPE conditions, the analytes were enriched 20-fold and the LODs dropped to 0.44-5.20 microg/kg. Furthermore, the proposed extraction method was validated by the correlation coefficient (R2) of the calibration curve, repeatability (RSD, n = 6), and fortified recoveries, which were 0.9967-0.9993, 2.7-6.5, and 74.7-104.5%, respectively. Based on these results, it could be concluded that the proposed CPE method with Triton X-114 was suitable for the effective extraction and enrichment of OPP residues in the apple and pear samples.

Witnessing family violence and adolescent cyberbullying perpetration: A longitudinal moderated mediation model involving anger dysregulation and teacher support.

BACKGROUND: Family violence has been shown to be associated with traditional adolescent bullying perpetration. However, few studies have considered the association between witnessing family violence and adolescent bullying perpetration in cyberspace. OBJECTIVE: The present study aimed to reveal the mechanism explaining the association between witnessing family violence and adolescent cyberbullying perpetration by testing the mediating effect of anger dysregulation and the moderating effect of teacher support. PARTICIPANTS AND SETTING: Participants were 751 Chinese adolescents (Mage at Time 1 = 13.25) who completed the measures of witnessing family violence, anger dysregulation, cyberbullying perpetration, and teacher support at three time points over the year. METHODS: Structural equation modeling was used to assess the direct and indirect effects of witnessing family violence on adolescent cyberbullying perpetration through anger dysregulation as a mediator and perceived teacher support as a moderator. RESULTS: The results showed that witnessing family violence at baseline positively predicted adolescent cyberbullying perpetration at T3, and anger dysregulation at T2 partially mediated this association. The positive relation between witnessing family violence and later anger dysregulation was stronger for adolescents who perceived higher levels of teacher support. CONCLUSIONS: Witnessing family violence could increase the risk for adolescent cyberbullying perpetration, with anger dysregulation mediating this association. The protective effect of perceived teacher support weakens as the levels of witnessing family violence increase. These findings offer insight into the connection between witnessing family violence and adolescent bullying perpetration in the digital age, emphasizing the importance of promoting programs to prevent intrafamilial violence.

Nonsuicidal self-injury among Chinese university students during the post-COVID-19 era: analysis of sex differences and the impact of gender role conflict.

Background: Global centers of epidemic prevention and control have entered a new stage of normalization, namely, the "post-COVID-19 era." During the post-COVID-19 era, which is characterized by the time period following that with the most serious medical consequences, the psychosocial consequences of the COVID-19 pandemic began to receive worldwide attention, especially the degree of psychological distress it caused. Aim: This study explored the differential impact of gender role conflict on Chinese university students' engagement in nonsuicidal self-injury (NSSI) as a function of biological sex following the global COVID-19 pandemic. Methods: Participants were 1,600 university students in northwestern China (M age = 21.3 years; 50.8% women) who completed online measures of demographic variables (including biological sex, gender role conflict, and NSSI engagement). Results: Women reported significantly more gender role conflicts than men did, while engagement in NSSI was significantly more prevalent among men than women. A total of 262 men reported engaging in at least one NSSI behavior, resulting in a prevalence rate of 33.25%. In comparison, a total of 106 individuals reported engaging in at least one NSSI behavior, resulting in a prevalence rate of 13.05% among women. Gender role conflict was found to significantly predict university students' NSSI engagement, regardless of biological sex. Conclusion: This is the first empirical study to identify sex differences in both gender role conflict and engagement in NSSI among university students in Northwestern China during the post-COVID-19 era. In addition, the present study is the first to demonstrate how gender role conflict predicts engagement in NSSI across sexes. These findings will inform the literature on gender role conflict and NSSI, particularly the close relationship between gender role conflict and engagement in NSSI among Chinese university students, and they emphasize the need for continued efforts to explore NSSI cross-culturally.

Conversion of farmland to forest or grassland improves soil carbon, nitrogen, and ecosystem multi-functionality in a subtropical karst region of southwest China.

The conversion of farmland to forest in China has been recognized for its positive impact on above-ground vegetation and carbon sequestration. However, the impact on soil quality during land conversion, particularly in vulnerable karst areas, has received less attention. In this study conducted in a karst area of southwest China, eight different farmland conversion strategies were investigated to assess improvements in surface soil carbon, nitrogen, and ecosystem multi-functionality (EMF). Our results showed that farmland converted to afforestation areas or farmland that was abandoned contained higher amounts of carbon (total, organic, active) and ammonium nitrogen (NH4+-N) in the soil compared to farmland converted to grassland or maize crop. Soluble organic carbon levels were higher in afforestation and grassland areas compared to maize crop controls. By contrast, soil from grassland and abandoned land exhibited higher levels of nitrate nitrogen (NO3--N) compared to afforestation land or maize crop controls. There were no differences in NH4+-N content between any condition, except for afforestation land that specifically contained the Zenia insignis plant species. Afforestation land consistently exhibited higher EMF values than grassland. Pearson correlation analysis revealed positive relationships between soil indices and EMF scores, except for NO3--N.Random forest analysis explained 95% of the variation in soil EMF and identified specific soil factors: total carbon, organic carbon, active labile organic carbon, total nitrogen, and ammonium nitrogen, as the main drivers of soil multi-functionality. Our studies show how various reforestation strategies can enhance soil nutrient sequestration and improve soil multi-functionality of farmland in the karst areas.These findings provide insight into sustainable soil management practices for converting farmland into natural areas.

A karst-inspired hierarchical Mg/Al layered double hydroxide with a high entropy-driven process for interception and storage.

Karstification plays a crucial role in forming magnificent scenery, and storing oil, natural gas, mineral resources, and water. Through the inspiration of karstification, a hierarchical layered double hydroxide (LDH) with funnel-like and cave-like structures (called Karst-LDH) is formed by the dissolution of acrylic acid/water solution. Meanwhile, the results of transmission electron microscopy (TEM) and scanning electron microscopy (SEM) show that Karst-LDH has complicated and interconnected internal pipe networks. The actual maximum phosphate adsorption capacity of Karst-LDH reaches 126.38 mg g-1 due to the unique structures, protonation, ligand exchange, ion exchange, and hydrogen bonding, which is over ten times that of general LDH with a regular hexagonal structure. The results of isotherms and thermodynamics also indicate that Karst-LDH conforms to more heterogeneous and multilayer adsorption with a higher entropy-driven process. Karst-LDH exhibits good selectivity for chloride and nitrate ions. The change in the frontier orbital interaction between phosphate and different LDHs is a significant reason for quick macropore transmission, mesopore interception, and finally, phosphate storage in Karst-LDH. This work provides an efficient way for the design and fabrication of high adsorption performance materials with unique karst-type structures, which can be used for multiple fields potentially.

Thoracic spine infection caused by Pseudomonas fluorescens: A case report and review of literature.

BACKGROUND: The clinical incidence of spinal infection is gradually increasing, and its onset is insidious, easily leading to missed diagnosis and misdiagnosis, which may lead to serious complications such as nervous system dysfunction, spinal instability and/or deformity, and cause a huge burden on society and families. Early identification of the causative agent and precision medicine will greatly reduce the suffering of patients. At present, the main pathogenic bacteria that cause spinal infection are Staphylococcus aureus, Streptococcus, Pneumococcus, Escherichia coli, and Klebsiella. There are no reports of spinal infection caused by Pseudomonas fluorescens. CASE SUMMARY: We report a 32-year-old female patient with spinal infection. She presented with flank pain, initially thought to be bone metastases or bone tuberculosis, and had a family background of tumors. Her clinical features and changes in imaging and laboratory tests led to the suspicion of thoracic spine infection. Histopathology of the lesion showed inflammation, tissue culture of the lesion was negative several times, and the possible pathogen - Pseudomonas fluorescens was found after gene sequencing of the lesion. The patient recovered completely after a full course of antibiotic treatment. CONCLUSION: This report increases the range of pathogens involved in spinal infections, highlights the unique advantages of gene sequencing technology in difficult-to-diagnose diseases, and validates conservative treatment with a full course of antibiotics for spinal infections without complications.