AIM:To explore the causal relationship between several possible behavioral factors and high myopia(HM)using multivariable Mendelian randomization(MVMR)approach and to find the mediators among them with mediation analy...AIM:To explore the causal relationship between several possible behavioral factors and high myopia(HM)using multivariable Mendelian randomization(MVMR)approach and to find the mediators among them with mediation analysis.METHODS:The causal effects of several behavioral factors,including screen time,education time,time spent outdoors,and physical activity,on the risk of HM using univariable Mendelian randomization(MR)and MVMR analyses were first assessed.Genome-wide association study summary statistics of serum metabolites were also used in mediation analysis to determine the extent to which serum metabolites mediate the effects of behavioral factors on HM.RESULTS:MR analyses indicated that both increased time spent outdoors and a higher frequency of moderate physical activity significantly reduced the risk of HM.Further MVMR analysis confirmed that moderate physical activity independently contributed to a lower risk of HM.Additionally,MR analyses identified 13 serum metabolites significantly associated with HM,of which 12 were lipids and one was an amino acid derivative.Mediation analysis revealed that six lipid metabolites mediated the protective effects of moderate physical activity on HM,with the highest mediation proportion observed for 1-(1-enyl-palmitoyl)-GPC(p-16:0;30.83%).CONCLUSION:This study suggests that in addition to outdoor time,moderate physical activity habits may have an independent protective effect against HM and pointed to lipid metabolites as priority targets for the prevention due to low physical activity.These results emphasize the importance of physical activity and metabolic health in HM and underscore the need for further study of these complex associations.展开更多
The current study examined the roles of collective self-esteem and personal self-esteem in the relationship between national identity and subjective well-being.Participants were 583 Chinese college students(females=49...The current study examined the roles of collective self-esteem and personal self-esteem in the relationship between national identity and subjective well-being.Participants were 583 Chinese college students(females=49%;mean age=19.25±1.85 years).They completed measures of national identity,collective self-esteem,personal self-esteem,and subjective well-being.Path analysis findings result indicated national identity to influence the students’subjective wellbeing through three pathways:(1)national identity→collective self-esteem→subjective well-being,meaning higher subjective wellbeing with collective self-esteem.(2)national identity→personal self-esteem→subjective well-being,to suggest higher personal self-esteem was associated with subjective wellbeing;(3)national identity→collective selfesteem→personal self-esteem→subjective well-being.Compared to simple mediation models constructed with only personal self-esteem or collective self-esteem as a single mediating variable,the chain mediation model better explains the mediating mechanism of national identity on subjective well-being(the variance explained by the mediating variables increased by 65.38%and 59.26%,respectively).The collective self-esteem and personal self-esteem mediation is consistent with social identity theory,whereby national identity enhances collective self-evaluation,which in turn bolsters personal self-worth and subjective well-being.These findings of the current study offer new insights into how national identity affects subjective well-being in collectivistic culture.展开更多
BACKGROUND Emotional reactions,such as anxiety,irritability,and aggressive behavior,have attracted clinical attention as behavioral and emotional problems in preschool-age children.AIM To investigate the current statu...BACKGROUND Emotional reactions,such as anxiety,irritability,and aggressive behavior,have attracted clinical attention as behavioral and emotional problems in preschool-age children.AIM To investigate the current status of family rearing,parental stress,and behavioral and emotional problems of preschool children and to analyze the mediating effect of the current status of family rearing on parental stress and behavioral/emo-tional problems.METHODS We use convenience sampling to select 258 preschool children in the physical examination center of our hospital from October 2021 to September 2023.The children and their parents were evaluated using a questionnaire survey.Pearson's correlation was used to analyze the correlation between child behavioral and emotional problems and parental stress and family rearing,and the structural equation model was constructed to test the mediating effect.RESULTS The score for behavioral/emotional problems of 258 preschool children was(27.54±3.63),the score for parental stress was(87.64±11.34),and the score for parental family rearing was(31.54±5.24).There was a positive correlation between the behavioral and emotional problems of the children and the“hostile/mandatory”parenting style;meanwhile,showed a negative correlation with the“support/participation”parenting style(all P<0.05).The intermediary effect value between the family upbringing of parents in parental stress and children's behavior problems was 29.89%.CONCLUSION Parental family upbringing has a mediating effect between parental stress and behavioral and emotional problems of children.Despite paying attention to the behavioral and emotional problems of preschool-age children,clinical medical staff should provide correct and reasonable parenting advice to their parents to promote the mental health of preschool-age children.展开更多
This study tested a chain mediation model on whether hopelessness and nostalgia play a mediating role in psychache and suicidal ideation of firefighters.A total of 652 firefighters participated in the survey(male=94.9...This study tested a chain mediation model on whether hopelessness and nostalgia play a mediating role in psychache and suicidal ideation of firefighters.A total of 652 firefighters participated in the survey(male=94.94%;mean age=23.71 years,SD=4.18 years).The firefighters completed the Chinese Revised Psychache Scale(PAS),Beck Hopelessness Scale(BHS),Southampton Nostalgia Scale(SNS),and Columbia-Suicide Severity Rating Scale(CSSRS).The path analysis results indicated that psychache positively predicted suicidal ideation.Hopelessness plays a significant mediating role between psychache and suicidal ideation further strengthening this relationship.In contrast,nostalgia mediates and weakened the relationship between psychache and suicidal ideation.Hopelessness and nostalgia jointly constructed a chain mediating effect between psychache and suicidal ideation,for higher suicidal ideation with higher hopelessness and lower nostalgia.The findings align with the Three-Step Theory of Suicide,which proposes that suicidal ideation results from the combination of pain and hopelessness and that connectedness is a key protective factor against escalating ideation.Therefore,interventions to reduce suicidal ideation in firefighters should aim to enhance their nostalgia,while reducing sense of hopelessness.展开更多
Background Ongoing debates question the harm of internet use with the evolving technology,as many individuals transition from regular to problematic internet use(PIU).The habenula(Hb),located between the thalamus and ...Background Ongoing debates question the harm of internet use with the evolving technology,as many individuals transition from regular to problematic internet use(PIU).The habenula(Hb),located between the thalamus and the third ventricle,is implicated in various psychiatric disorders.In addition,personality features have been suggested to play a role in the pathophysiology of PIU.Aims This study aimed to investigate Hb volumetry in individuals with subclinical PIU and the mediating effect of personality traits on this relationship.Methods 110 healthy adults in this cross-sectional study underwent structural magnetic resonance imaging.Hb segmentation was performed using a deep learning technique.The Internet Addiction Test(IAT)and the NEO Five-Factor Inventory were used to assess the PIU level and personality,respectively.Partial Spearman's correlation analyses were performed to explore the reiationships between Hb volumetry,IAT and NEO.Multiple regression analysis was applied to identify personality traits that predict IAT scores.The significant trait was then treated as a mediator between Hb volume and IAT correlation in mediation analysis with a bootstrap value of 5000.Results Relative Hb volume was negatively correlated with IAT scores(partial rho=-0.142,p=0.009).The IAT score was positively correlated with neuroticism(partial rho=0.430,p<0.001)and negatively correlated with extraversion,agreeableness and conscientiousness(partial rho=-0.213,p<0.001;partial rho=-0.279,p<0.001;and partial rho=-0.327,p<0.001).There was a significant indirect effect of Hb volume on this model(β=-0.061,p=0.048,boot 95%confidence interval:-0.149 to-0.001).Conclusions This study uncovered a crucial link between reduced Hb volume and heightened PIU.Our findings highlight neuroticism as a key risk factor for developing PIU.Moreover,neuroticism was shown to mediate the relationship between Hb volume and PIU tendency,offering valuable insight into the complexities of this interaction.展开更多
BACKGROUND Death anxiety(DA)is a prevalent psychological challenge among oncology nurses that affects their emotional well-being and professional competence in coping with death-related situations.Death-related attitu...BACKGROUND Death anxiety(DA)is a prevalent psychological challenge among oncology nurses that affects their emotional well-being and professional competence in coping with death-related situations.Death-related attitudes and resilience are critical factors that may mediate the relationship between DA and coping with death competence(CDC).However,few studies have examined the chain-mediating effect of these factors among Chinese oncology nurses.This study aimed to investigate the association between DA and CDC among Chinese oncology nurses,with a focus on the mediating roles of death attitude and resilience.AIM To investigate the association between DA and CDC among Chinese oncology nurses.using an electronic questionnaire distributed in Wenjuanxing,China.In total,615 valid responses were obtained.The participants completed the Templer death anxiety scale,death attitude profile-revised,Connor-Davidson resilience scale,and coping with death scale.A chain mediation analysis was performed using the PROCESS macro in SPSS to examine the relationships between these variables.RESULTS The findings indicated that DA had a significant direct effect on CDC[effect=0.201,95%confidence interval(CI):0.112-0.322].In addition to this direct effect,three significant indirect pathways were observed:(1)Death attitude(effect=0.118,95%CI:0.056-0.163);(2)Resilience(effect=0.108,95%CI:0.032-0.176);and(3)A sequential mediation pathway involving both death attitude and resilience(effect=0.071,95%CI:0.042-0.123).The total indirect effects of the three mediation paths accounted for 29.7%of the relationship between DA and CDC.CONCLUSION Using a chain mediation model,this study explored the mechanisms linking DA,death attitude,resilience,and CDC among Chinese oncology nurses.These findings highlighted the crucial role of death attitude and resilience in mediating the relationship between DA and CDC.Interventions aimed at fostering adaptive attitudes toward death and enhancing resilience may improve nurses’ability to cope with death-related stressors,ultimately benefiting their psychological well-being and professional competence.展开更多
Background:Resilience is crucial for medical college students to thrive in the highly stressful environment of medical education.However,the prevalence of problematic internet use(PIU)in this population may negatively...Background:Resilience is crucial for medical college students to thrive in the highly stressful environment of medical education.However,the prevalence of problematic internet use(PIU)in this population may negatively impact their resilience.This study investigated the influence of problematic online gaming(PG)and problematic social media use(PSMU)on the resilience of medical college students in China.Methods:A sample of 5075 first-year medical college students from four Chinese universities was studied.PG served as the independent variable,resilience as the dependent variable,fatigue as the mediator,and PSMU as the moderator.Structural equation modeling was conducted using LISREL 8.80.Additionally,a moderated mediation model was evaluated using the jAMM module in jamovi 2.6.13.Results:The study’s findings revealed significant negative correlations between resilience and the variables of PG,PSMU,and fatigue.Fatigue mediated the relationship between PG and resilience(B=−0.04,95%CI=[−0.05,−0.03]).PSMU moderated the direct relationship between PG and resilience with the interaction term PG×PSMU significant(B=−0.004,t=−6.501,p<0.001)and the first stage(PG→fatigue)of the mediation with PG×PSMU significant(B=0.055,t=8.351,p<0.001).The detrimental effects of PG on resilience were more pronounced among individuals with lower levels of PSMU.Conclusion:This study concluded that addressing PIU,particularly PG,is essential for fostering resilience in medical college students.While PSMU itself is maladaptive,the underlying social media engagement may serve a protective role through social support in mitigating the adverse effects of PG on resilience.展开更多
Amidst the unique challenges faced by rural educators is their sense of decent work influenced by levels of social support,career self-efficacy,and marginalization.To investigate these relationships,we surveyed 435 ru...Amidst the unique challenges faced by rural educators is their sense of decent work influenced by levels of social support,career self-efficacy,and marginalization.To investigate these relationships,we surveyed 435 rural school teachers(females=69.32%,mean years teaching experience=13.6,SD=7.7 years).The Structural Equation Modeling results indicated that social support positively predicts teachers’perceptions of decent work.Career self-efficacy mediated the relationship between social support and a higher sense of decent work,while marginalization mediated the relationship such that lower social support predicted lower perceptions of decent work.Career self-efficacy and marginalization also had a sequential mediation relationship:higher social support enhanced career self-efficacy,which in turn reduced marginalization experiences,ultimately improving teachers’perceptions of decent work.These findings align with the predictions of Social Cognitive Career Theory and the Psychology of Working Theory,demonstrating that environmental supports enhance personal psychological resources,reduce marginalization risks,and promote positive work-related outcomes.The study findings highlight the necessity for education departments to improve rural teachers’perceptions of decent work by providing social support to foster positive work experiences for teachers at high risk for marginalization and diminished career self-efficacy.展开更多
Background:Interpersonal alienation has increasingly been recognized as a salient risk factor affecting university students’psychological adjustment and life satisfaction.Guided by Social Identity and Self-Categoriza...Background:Interpersonal alienation has increasingly been recognized as a salient risk factor affecting university students’psychological adjustment and life satisfaction.Guided by Social Identity and Self-Categorization theories,this study examines how alienation influences life satisfaction through the mediating roles of social identity and hope.Methods:This study surveyed 492 Taiwan resident,China undergraduate students(53.7 percent female,mean age 21.08 years)from 60 universities using convenience sampling in May 2023.Data were collected through an online questionnaire distributed via faculty-managed teaching media platforms.Measures included perceived social identity,state hope,interpersonal alienation,and life satisfaction.All instrumentswere adapted from validated scales,translated into traditional Chinese through back-translation,and reviewed by experts to ensure content validity and cultural relevance.Statistical analyses were conducted using SPSS 20 and SmartPLS 4.0.Results:Harman’s single-factor test indicated no significant common method bias.Measurement model analyses demonstrated satisfactory reliability,convergent validity,and absence of multicollinearity.All four hypothesized paths were supported:interpersonal alienation negatively predicted life satisfaction,with perceived social identity and hope serving as individual and sequential mediators.The model explained 10.5%of the variance in social identity,25.3%in hope,and 49.6%in life satisfaction.Group comparisons revealed that male students reported significantly higher hope and life satisfaction than females,and first-year students experienced greater alienation than upper-level peers.Conclusion:This study elucidates how interpersonal alienation undermines life satisfaction among university students and highlights the protective roles of social identity and hope.Findings underscore the importance of fostering psychological resources that promote resilience and well-being.The results offer practical implications for designing educational programs that enhance students’sense of belonging,optimism,and emotional strength.These insights contribute to a deeper theoretical understanding of the mechanisms linking alienation and life satisfaction and inform strategies to support student adaptation and flourishing in higher education.展开更多
Solar interfacial evaporation(SIE),is currently one of the most potential water supply technologies in the remote,insular,and disaster-stricken areas.However,the existence of volatile organic compounds(VOCs)in water d...Solar interfacial evaporation(SIE),is currently one of the most potential water supply technologies in the remote,insular,and disaster-stricken areas.However,the existence of volatile organic compounds(VOCs)in water deteriorates the distillate quality,threatening human health.Herein,we constructed a carbonbased bimetallic(C/FeCo)photothermal membrane by electrospinning technique.Results illustrated that the membrane can catalytically degrade VOCs during SIE with persulfate(PDS)mediation.PDS,as well as phenol,was mainly reacted on the interface of the photothermal membrane instead of in the bulk solution.The interception efficiency of phenol achieved nearly 100%using the C/FeCo membrane during SIE.Hydroxyl radical(•OH),sulfate radical(SO_(4)•−),superoxide radical(O_(2)•−),and singlet oxygen(^(1)O_(2))were identified as the main active substances to degrade VOCs.We also conducted SIE experiments using actual river water to evaluate the practical performance of the C/FeCo membrane.This work holds the promise of VOCs interception during SIE and enlarges the application of solar distillation in water/wastewater treatment.展开更多
Background:Fundamental internal factors like self-construal and its influence on problematic online game use(POGU)remain underexplored.Hence,this study aims to investigate the effects of independent and interdependent...Background:Fundamental internal factors like self-construal and its influence on problematic online game use(POGU)remain underexplored.Hence,this study aims to investigate the effects of independent and interdependent self-construal on POGU,with the mediation of basic psychological needs satisfaction.Methods:The study surveyed 418 Chinese junior high school students(50.24%male;Meanage=12.68,SD=0.65),assessing their levels of self-construal,basic psychological needs satisfaction,and POGU.Aparallelmediationmodelwas tested.Results:The findings showed that autonomy and competence needs satisfaction fully mediated the negative impact of independent self-construal on POGU(B=−0.052,p<0.05;B=−0.094,p<0.01,respectively),while interdependent self-construal and relatedness needs satisfaction did not have a significant effect on POGU(B=0.005,p=0.758).Additionally,while independent self-construal positively correlated with the satisfaction of all three psychological needs,interdependent self-construal only positively associated with relatedness need satisfaction(B=0.152,p<0.001).Conclusions:The study demonstrates that independent self-construal serves as a protective factor against POGU,mediated by autonomy and competence needs satisfaction,while the effects of interdependent self-construal are more complex.These insights highlight the need for tailored interventions that promote adaptive self-construal and psychological needs satisfaction among Chinese adolescents to prevent POGU.展开更多
Aldehydes are valuable intermediates with widespread industrial applications,and their traditional synthesis relies on chemical oxidation that is often hazardous and environmentally unfriendly.Electrochemical oxidatio...Aldehydes are valuable intermediates with widespread industrial applications,and their traditional synthesis relies on chemical oxidation that is often hazardous and environmentally unfriendly.Electrochemical oxidation offers a more sustainable and milder alternative;however,it faces challenges such as aldehyde overoxidation and susceptibility to base-catalyzed Cannizzaro disproportionation.Electrochemical glycerol oxidation to glyceraldehyde is a representative example,which typically requires precious metal-based electrocatalysts but still suffers from low selectivity and activity.Here,we report a metal-free oxidation strategy mediated by 2,2,6,6-tetramethylpiperidine-1-oxyl.By systematically investigating the redox thermodynamics and kinetics of TEMPO across a broad pH range,we construct a Pourbaix diagram and elucidate the relative kinetics of each reaction step.These insights allow us to explain the anomalously high apparent Faradaic efficiency(~200%)observed under acidic conditions,and identify neutral media as the optimal environment for selective glyceraldehyde production.Under optimized conditions,our system achieves a glyceraldehyde Faradaic efficiency exceeding 93%and a partial current density of 23.3 mA cm^(-2)at 0.57 V—more than doubling the performance of the best reported precious metal-based systems.Furthermore,the versatility of this strategy extends to the selective oxidation of other primary alcohols to their corresponding aldehydes with near-unity selectivity.展开更多
Background:The phenomenon of academic anxiety has been demonstrated to exert a considerable influence on students’academic engagement,leading to the emergence of a phenomenon known as“learned helplessness”and under...Background:The phenomenon of academic anxiety has been demonstrated to exert a considerable influence on students’academic engagement,leading to the emergence of a phenomenon known as“learned helplessness”and undermining the selfconfidence and motivation of high school students.Using acceptance-rejection theory,this study elucidated how a rejective parenting style affects Chinese high school students’academic anxiety and explored the urban-rural heterogeneity of this relationship.Methods:Data were analyzed using a stratified whole-cluster random sampling method.There are a total of 30,000 high school students in the three regions of northern and central China(from Shanxi,Hebei and Henan).A sample of 2286 high school students aged 14–19 years was ultimately selected from 2760 respondents for this investigation,which was conducted at the beginning of the 2023 school year.Pearson correlation,ordinary least squares(OLS)regression analysis,path analysis,and Fisher’s permutation test(FPT)were used to examine the effects of rejective parenting style on high school students’academic anxiety.Results:Results indicated a significant positive predictive effect between rejective parenting style and academic anxiety among high school students(β=0.815,t=116.211,p<0.001).Students’self-concept was significantly positively related to positive coping style(β=0.424,t=21.208,p<0.001)and chain-mediated this relationship.Therefore,this parenting style may indirectly mitigate academic anxiety through these mediators.The study also found that the effect of rejective parenting style on academic anxiety varied by students’residential background and was more pronounced in urban areas(0.226)than in rural areas(0.130).Conclusion:The research underscores the imperative for Chinese families to reexamine their utilization of rejection parenting and to prioritize the cultivation of students’intrinsic attributes.These findings offer a theoretical framework and practical evidence for policymakers and educators to develop efficacious and targeted interventions.In particular,greater attention should be directed towards the discrepancies in the manifestation of emotional and academic anxiety between urban and rural students,and prompt guidance should be furnished.展开更多
基金Supported by the Central High Level Hospital Clinical Research Funding(No.BJ-2024-089).
文摘AIM:To explore the causal relationship between several possible behavioral factors and high myopia(HM)using multivariable Mendelian randomization(MVMR)approach and to find the mediators among them with mediation analysis.METHODS:The causal effects of several behavioral factors,including screen time,education time,time spent outdoors,and physical activity,on the risk of HM using univariable Mendelian randomization(MR)and MVMR analyses were first assessed.Genome-wide association study summary statistics of serum metabolites were also used in mediation analysis to determine the extent to which serum metabolites mediate the effects of behavioral factors on HM.RESULTS:MR analyses indicated that both increased time spent outdoors and a higher frequency of moderate physical activity significantly reduced the risk of HM.Further MVMR analysis confirmed that moderate physical activity independently contributed to a lower risk of HM.Additionally,MR analyses identified 13 serum metabolites significantly associated with HM,of which 12 were lipids and one was an amino acid derivative.Mediation analysis revealed that six lipid metabolites mediated the protective effects of moderate physical activity on HM,with the highest mediation proportion observed for 1-(1-enyl-palmitoyl)-GPC(p-16:0;30.83%).CONCLUSION:This study suggests that in addition to outdoor time,moderate physical activity habits may have an independent protective effect against HM and pointed to lipid metabolites as priority targets for the prevention due to low physical activity.These results emphasize the importance of physical activity and metabolic health in HM and underscore the need for further study of these complex associations.
文摘The current study examined the roles of collective self-esteem and personal self-esteem in the relationship between national identity and subjective well-being.Participants were 583 Chinese college students(females=49%;mean age=19.25±1.85 years).They completed measures of national identity,collective self-esteem,personal self-esteem,and subjective well-being.Path analysis findings result indicated national identity to influence the students’subjective wellbeing through three pathways:(1)national identity→collective self-esteem→subjective well-being,meaning higher subjective wellbeing with collective self-esteem.(2)national identity→personal self-esteem→subjective well-being,to suggest higher personal self-esteem was associated with subjective wellbeing;(3)national identity→collective selfesteem→personal self-esteem→subjective well-being.Compared to simple mediation models constructed with only personal self-esteem or collective self-esteem as a single mediating variable,the chain mediation model better explains the mediating mechanism of national identity on subjective well-being(the variance explained by the mediating variables increased by 65.38%and 59.26%,respectively).The collective self-esteem and personal self-esteem mediation is consistent with social identity theory,whereby national identity enhances collective self-evaluation,which in turn bolsters personal self-worth and subjective well-being.These findings of the current study offer new insights into how national identity affects subjective well-being in collectivistic culture.
基金Supported by the Shijiazhuang Science and Technology Research and Development Program,No.221460383.
文摘BACKGROUND Emotional reactions,such as anxiety,irritability,and aggressive behavior,have attracted clinical attention as behavioral and emotional problems in preschool-age children.AIM To investigate the current status of family rearing,parental stress,and behavioral and emotional problems of preschool children and to analyze the mediating effect of the current status of family rearing on parental stress and behavioral/emo-tional problems.METHODS We use convenience sampling to select 258 preschool children in the physical examination center of our hospital from October 2021 to September 2023.The children and their parents were evaluated using a questionnaire survey.Pearson's correlation was used to analyze the correlation between child behavioral and emotional problems and parental stress and family rearing,and the structural equation model was constructed to test the mediating effect.RESULTS The score for behavioral/emotional problems of 258 preschool children was(27.54±3.63),the score for parental stress was(87.64±11.34),and the score for parental family rearing was(31.54±5.24).There was a positive correlation between the behavioral and emotional problems of the children and the“hostile/mandatory”parenting style;meanwhile,showed a negative correlation with the“support/participation”parenting style(all P<0.05).The intermediary effect value between the family upbringing of parents in parental stress and children's behavior problems was 29.89%.CONCLUSION Parental family upbringing has a mediating effect between parental stress and behavioral and emotional problems of children.Despite paying attention to the behavioral and emotional problems of preschool-age children,clinical medical staff should provide correct and reasonable parenting advice to their parents to promote the mental health of preschool-age children.
文摘This study tested a chain mediation model on whether hopelessness and nostalgia play a mediating role in psychache and suicidal ideation of firefighters.A total of 652 firefighters participated in the survey(male=94.94%;mean age=23.71 years,SD=4.18 years).The firefighters completed the Chinese Revised Psychache Scale(PAS),Beck Hopelessness Scale(BHS),Southampton Nostalgia Scale(SNS),and Columbia-Suicide Severity Rating Scale(CSSRS).The path analysis results indicated that psychache positively predicted suicidal ideation.Hopelessness plays a significant mediating role between psychache and suicidal ideation further strengthening this relationship.In contrast,nostalgia mediates and weakened the relationship between psychache and suicidal ideation.Hopelessness and nostalgia jointly constructed a chain mediating effect between psychache and suicidal ideation,for higher suicidal ideation with higher hopelessness and lower nostalgia.The findings align with the Three-Step Theory of Suicide,which proposes that suicidal ideation results from the combination of pain and hopelessness and that connectedness is a key protective factor against escalating ideation.Therefore,interventions to reduce suicidal ideation in firefighters should aim to enhance their nostalgia,while reducing sense of hopelessness.
基金funded by a Grant-in-Aid for Scientific Research(B)(Japan Society for The Promotion of Science,21H02849)Grant-in-Aid for Scientific Research(C)(Japan Society for The Promotion of Science,23K07013)+2 种基金Grant-in-Aid for Transformative Research Areas(A)(Japan Society for The Promotion of Science,JP21H05173)Grant-in-Aid by the Smoking Research FoundationGrant-in-Aid by the Telecommunications Advancement Foundation.
文摘Background Ongoing debates question the harm of internet use with the evolving technology,as many individuals transition from regular to problematic internet use(PIU).The habenula(Hb),located between the thalamus and the third ventricle,is implicated in various psychiatric disorders.In addition,personality features have been suggested to play a role in the pathophysiology of PIU.Aims This study aimed to investigate Hb volumetry in individuals with subclinical PIU and the mediating effect of personality traits on this relationship.Methods 110 healthy adults in this cross-sectional study underwent structural magnetic resonance imaging.Hb segmentation was performed using a deep learning technique.The Internet Addiction Test(IAT)and the NEO Five-Factor Inventory were used to assess the PIU level and personality,respectively.Partial Spearman's correlation analyses were performed to explore the reiationships between Hb volumetry,IAT and NEO.Multiple regression analysis was applied to identify personality traits that predict IAT scores.The significant trait was then treated as a mediator between Hb volume and IAT correlation in mediation analysis with a bootstrap value of 5000.Results Relative Hb volume was negatively correlated with IAT scores(partial rho=-0.142,p=0.009).The IAT score was positively correlated with neuroticism(partial rho=0.430,p<0.001)and negatively correlated with extraversion,agreeableness and conscientiousness(partial rho=-0.213,p<0.001;partial rho=-0.279,p<0.001;and partial rho=-0.327,p<0.001).There was a significant indirect effect of Hb volume on this model(β=-0.061,p=0.048,boot 95%confidence interval:-0.149 to-0.001).Conclusions This study uncovered a crucial link between reduced Hb volume and heightened PIU.Our findings highlight neuroticism as a key risk factor for developing PIU.Moreover,neuroticism was shown to mediate the relationship between Hb volume and PIU tendency,offering valuable insight into the complexities of this interaction.
基金Supported by the Hunan Provincial Natural Science Foundation of China,No.2025JJ80410.
文摘BACKGROUND Death anxiety(DA)is a prevalent psychological challenge among oncology nurses that affects their emotional well-being and professional competence in coping with death-related situations.Death-related attitudes and resilience are critical factors that may mediate the relationship between DA and coping with death competence(CDC).However,few studies have examined the chain-mediating effect of these factors among Chinese oncology nurses.This study aimed to investigate the association between DA and CDC among Chinese oncology nurses,with a focus on the mediating roles of death attitude and resilience.AIM To investigate the association between DA and CDC among Chinese oncology nurses.using an electronic questionnaire distributed in Wenjuanxing,China.In total,615 valid responses were obtained.The participants completed the Templer death anxiety scale,death attitude profile-revised,Connor-Davidson resilience scale,and coping with death scale.A chain mediation analysis was performed using the PROCESS macro in SPSS to examine the relationships between these variables.RESULTS The findings indicated that DA had a significant direct effect on CDC[effect=0.201,95%confidence interval(CI):0.112-0.322].In addition to this direct effect,three significant indirect pathways were observed:(1)Death attitude(effect=0.118,95%CI:0.056-0.163);(2)Resilience(effect=0.108,95%CI:0.032-0.176);and(3)A sequential mediation pathway involving both death attitude and resilience(effect=0.071,95%CI:0.042-0.123).The total indirect effects of the three mediation paths accounted for 29.7%of the relationship between DA and CDC.CONCLUSION Using a chain mediation model,this study explored the mechanisms linking DA,death attitude,resilience,and CDC among Chinese oncology nurses.These findings highlighted the crucial role of death attitude and resilience in mediating the relationship between DA and CDC.Interventions aimed at fostering adaptive attitudes toward death and enhancing resilience may improve nurses’ability to cope with death-related stressors,ultimately benefiting their psychological well-being and professional competence.
基金supported by General Education Project of the National Social Science Foundation in 2020:“Multi-Dimensional Reconstruction of Peer Review Mechanisms in the Evaluation of Scientific and Technological Talents in Universities(BIA200167).”。
文摘Background:Resilience is crucial for medical college students to thrive in the highly stressful environment of medical education.However,the prevalence of problematic internet use(PIU)in this population may negatively impact their resilience.This study investigated the influence of problematic online gaming(PG)and problematic social media use(PSMU)on the resilience of medical college students in China.Methods:A sample of 5075 first-year medical college students from four Chinese universities was studied.PG served as the independent variable,resilience as the dependent variable,fatigue as the mediator,and PSMU as the moderator.Structural equation modeling was conducted using LISREL 8.80.Additionally,a moderated mediation model was evaluated using the jAMM module in jamovi 2.6.13.Results:The study’s findings revealed significant negative correlations between resilience and the variables of PG,PSMU,and fatigue.Fatigue mediated the relationship between PG and resilience(B=−0.04,95%CI=[−0.05,−0.03]).PSMU moderated the direct relationship between PG and resilience with the interaction term PG×PSMU significant(B=−0.004,t=−6.501,p<0.001)and the first stage(PG→fatigue)of the mediation with PG×PSMU significant(B=0.055,t=8.351,p<0.001).The detrimental effects of PG on resilience were more pronounced among individuals with lower levels of PSMU.Conclusion:This study concluded that addressing PIU,particularly PG,is essential for fostering resilience in medical college students.While PSMU itself is maladaptive,the underlying social media engagement may serve a protective role through social support in mitigating the adverse effects of PG on resilience.
文摘Amidst the unique challenges faced by rural educators is their sense of decent work influenced by levels of social support,career self-efficacy,and marginalization.To investigate these relationships,we surveyed 435 rural school teachers(females=69.32%,mean years teaching experience=13.6,SD=7.7 years).The Structural Equation Modeling results indicated that social support positively predicts teachers’perceptions of decent work.Career self-efficacy mediated the relationship between social support and a higher sense of decent work,while marginalization mediated the relationship such that lower social support predicted lower perceptions of decent work.Career self-efficacy and marginalization also had a sequential mediation relationship:higher social support enhanced career self-efficacy,which in turn reduced marginalization experiences,ultimately improving teachers’perceptions of decent work.These findings align with the predictions of Social Cognitive Career Theory and the Psychology of Working Theory,demonstrating that environmental supports enhance personal psychological resources,reduce marginalization risks,and promote positive work-related outcomes.The study findings highlight the necessity for education departments to improve rural teachers’perceptions of decent work by providing social support to foster positive work experiences for teachers at high risk for marginalization and diminished career self-efficacy.
基金support of the National Science and Technology Council,Taiwan,grant number NSTC 113-2410-H-018-027,granted to the corresponding author,Dr.Yao-Chung Cheng.
文摘Background:Interpersonal alienation has increasingly been recognized as a salient risk factor affecting university students’psychological adjustment and life satisfaction.Guided by Social Identity and Self-Categorization theories,this study examines how alienation influences life satisfaction through the mediating roles of social identity and hope.Methods:This study surveyed 492 Taiwan resident,China undergraduate students(53.7 percent female,mean age 21.08 years)from 60 universities using convenience sampling in May 2023.Data were collected through an online questionnaire distributed via faculty-managed teaching media platforms.Measures included perceived social identity,state hope,interpersonal alienation,and life satisfaction.All instrumentswere adapted from validated scales,translated into traditional Chinese through back-translation,and reviewed by experts to ensure content validity and cultural relevance.Statistical analyses were conducted using SPSS 20 and SmartPLS 4.0.Results:Harman’s single-factor test indicated no significant common method bias.Measurement model analyses demonstrated satisfactory reliability,convergent validity,and absence of multicollinearity.All four hypothesized paths were supported:interpersonal alienation negatively predicted life satisfaction,with perceived social identity and hope serving as individual and sequential mediators.The model explained 10.5%of the variance in social identity,25.3%in hope,and 49.6%in life satisfaction.Group comparisons revealed that male students reported significantly higher hope and life satisfaction than females,and first-year students experienced greater alienation than upper-level peers.Conclusion:This study elucidates how interpersonal alienation undermines life satisfaction among university students and highlights the protective roles of social identity and hope.Findings underscore the importance of fostering psychological resources that promote resilience and well-being.The results offer practical implications for designing educational programs that enhance students’sense of belonging,optimism,and emotional strength.These insights contribute to a deeper theoretical understanding of the mechanisms linking alienation and life satisfaction and inform strategies to support student adaptation and flourishing in higher education.
基金the National Natural Science Foundation of China(No.52070052)the National Natural Science Foundation of China(No.52300082)+3 种基金National Key Research and Development Program of China(No.2022YFB3805903)the State Key Laboratory of Urban Water Resource and Environment in HIT of China(No.2022TS14)the China Postdoctoral Science Foundation(No.2023M730881)Postdoctoral Fellowship Program of CPSF(No.GZB20230964)。
文摘Solar interfacial evaporation(SIE),is currently one of the most potential water supply technologies in the remote,insular,and disaster-stricken areas.However,the existence of volatile organic compounds(VOCs)in water deteriorates the distillate quality,threatening human health.Herein,we constructed a carbonbased bimetallic(C/FeCo)photothermal membrane by electrospinning technique.Results illustrated that the membrane can catalytically degrade VOCs during SIE with persulfate(PDS)mediation.PDS,as well as phenol,was mainly reacted on the interface of the photothermal membrane instead of in the bulk solution.The interception efficiency of phenol achieved nearly 100%using the C/FeCo membrane during SIE.Hydroxyl radical(•OH),sulfate radical(SO_(4)•−),superoxide radical(O_(2)•−),and singlet oxygen(^(1)O_(2))were identified as the main active substances to degrade VOCs.We also conducted SIE experiments using actual river water to evaluate the practical performance of the C/FeCo membrane.This work holds the promise of VOCs interception during SIE and enlarges the application of solar distillation in water/wastewater treatment.
基金supported by The National Social Science Fund of China(24ASH013).
文摘Background:Fundamental internal factors like self-construal and its influence on problematic online game use(POGU)remain underexplored.Hence,this study aims to investigate the effects of independent and interdependent self-construal on POGU,with the mediation of basic psychological needs satisfaction.Methods:The study surveyed 418 Chinese junior high school students(50.24%male;Meanage=12.68,SD=0.65),assessing their levels of self-construal,basic psychological needs satisfaction,and POGU.Aparallelmediationmodelwas tested.Results:The findings showed that autonomy and competence needs satisfaction fully mediated the negative impact of independent self-construal on POGU(B=−0.052,p<0.05;B=−0.094,p<0.01,respectively),while interdependent self-construal and relatedness needs satisfaction did not have a significant effect on POGU(B=0.005,p=0.758).Additionally,while independent self-construal positively correlated with the satisfaction of all three psychological needs,interdependent self-construal only positively associated with relatedness need satisfaction(B=0.152,p<0.001).Conclusions:The study demonstrates that independent self-construal serves as a protective factor against POGU,mediated by autonomy and competence needs satisfaction,while the effects of interdependent self-construal are more complex.These insights highlight the need for tailored interventions that promote adaptive self-construal and psychological needs satisfaction among Chinese adolescents to prevent POGU.
文摘Aldehydes are valuable intermediates with widespread industrial applications,and their traditional synthesis relies on chemical oxidation that is often hazardous and environmentally unfriendly.Electrochemical oxidation offers a more sustainable and milder alternative;however,it faces challenges such as aldehyde overoxidation and susceptibility to base-catalyzed Cannizzaro disproportionation.Electrochemical glycerol oxidation to glyceraldehyde is a representative example,which typically requires precious metal-based electrocatalysts but still suffers from low selectivity and activity.Here,we report a metal-free oxidation strategy mediated by 2,2,6,6-tetramethylpiperidine-1-oxyl.By systematically investigating the redox thermodynamics and kinetics of TEMPO across a broad pH range,we construct a Pourbaix diagram and elucidate the relative kinetics of each reaction step.These insights allow us to explain the anomalously high apparent Faradaic efficiency(~200%)observed under acidic conditions,and identify neutral media as the optimal environment for selective glyceraldehyde production.Under optimized conditions,our system achieves a glyceraldehyde Faradaic efficiency exceeding 93%and a partial current density of 23.3 mA cm^(-2)at 0.57 V—more than doubling the performance of the best reported precious metal-based systems.Furthermore,the versatility of this strategy extends to the selective oxidation of other primary alcohols to their corresponding aldehydes with near-unity selectivity.
基金funded by the Key Discipline Construction Project of the Liaoning Provincial Social Science Planning Fund(grant ID:L24ZD042)。
文摘Background:The phenomenon of academic anxiety has been demonstrated to exert a considerable influence on students’academic engagement,leading to the emergence of a phenomenon known as“learned helplessness”and undermining the selfconfidence and motivation of high school students.Using acceptance-rejection theory,this study elucidated how a rejective parenting style affects Chinese high school students’academic anxiety and explored the urban-rural heterogeneity of this relationship.Methods:Data were analyzed using a stratified whole-cluster random sampling method.There are a total of 30,000 high school students in the three regions of northern and central China(from Shanxi,Hebei and Henan).A sample of 2286 high school students aged 14–19 years was ultimately selected from 2760 respondents for this investigation,which was conducted at the beginning of the 2023 school year.Pearson correlation,ordinary least squares(OLS)regression analysis,path analysis,and Fisher’s permutation test(FPT)were used to examine the effects of rejective parenting style on high school students’academic anxiety.Results:Results indicated a significant positive predictive effect between rejective parenting style and academic anxiety among high school students(β=0.815,t=116.211,p<0.001).Students’self-concept was significantly positively related to positive coping style(β=0.424,t=21.208,p<0.001)and chain-mediated this relationship.Therefore,this parenting style may indirectly mitigate academic anxiety through these mediators.The study also found that the effect of rejective parenting style on academic anxiety varied by students’residential background and was more pronounced in urban areas(0.226)than in rural areas(0.130).Conclusion:The research underscores the imperative for Chinese families to reexamine their utilization of rejection parenting and to prioritize the cultivation of students’intrinsic attributes.These findings offer a theoretical framework and practical evidence for policymakers and educators to develop efficacious and targeted interventions.In particular,greater attention should be directed towards the discrepancies in the manifestation of emotional and academic anxiety between urban and rural students,and prompt guidance should be furnished.
