The rise in urbanization has increasingly restricted access to natural environments,posing substantial risks to the physical and mental health of urban populations,including university students and other high-stress g...The rise in urbanization has increasingly restricted access to natural environments,posing substantial risks to the physical and mental health of urban populations,including university students and other high-stress groups.This study examines the comparative effects of outdoor forest meditation(OFM)and indoor nature meditation(INM)in simulated nature environments(SNEs)on the physiological and psychological health of university students.A pretestposttest repeated measures design was employed,with 40students participating in three replicated OFM sessions and three identical INM sessions across varied SNE settings.Key physiological metrics,including heart rate(HR),blood pressure(BP),and salivary amylase concentration(SAC),were measured before and after each session.Psychological well-being was assessed using the Perceived Stress Scale-10(PSS-10)and Profile of Mood States(POMS).Results revealed significant reductions(p<0.05)in most post-intervention outcomes,except in the second indoor session across physiologic al and psychologic al responses,while multi-sensory INM sessions produced comparable benefits.Notably,SNEs with enhanced sensory components were effective,though slightly less impactful than OFM.These findings suggest that both OFM in nature and INM in SNEs can benefit university students'well-being.INM in SNEs offers a promising alternative for those with limited access to natural settings,contributing meaningfully to stress reduction and overall well-being.This study highlights the potential for nature-based strategies for human health in urban centres,advocating for further investigation into the long-term impacts of SNEs and optimal sensory configurations for maximizing therapeutic effects in urban populations.展开更多
Objective:To explore the application effect of high-fidelity simulation teaching in the training of emergency management for difficult airways among anesthesia nursing students,providing practical references for enhan...Objective:To explore the application effect of high-fidelity simulation teaching in the training of emergency management for difficult airways among anesthesia nursing students,providing practical references for enhancing their clinical emergency response capabilities.Methods:Eighty-four anesthesia nursing students who interned in the Department of Anesthesiology of our hospital from September 2023 to March 2024 were selected as the research subjects.They were randomly divided into a control group(n=42)and an observation group(n=42)using the random number table method.The control group adopted the traditional teaching mode(theoretical lectures+video demonstrations),while the observation group adopted the high-fidelity simulation teaching mode.After the training,the theoretical assessment scores,operational assessment scores,emergency response capability scores,and teaching satisfaction of the two groups of students were compared.Results:The observation group scored significantly higher than the control group in both theoretical assessment(90.35±4.82)points and practical assessment(92.17±3.96)points,with scores of(79.26±5.78)points and(81.34±5.21)points,respectively,in the control group.The differences were statistically significant(p<0.05).The observation group also scored higher than the control group in all dimensions of emergency response capabilities and total scores,including airway assessment(18.92±2.05)points vs.(14.56±2.37)points,equipment selection(19.15±1.83)points vs.(13.89±2.24)points,operation execution(19.36±1.78)points vs.(14.23±2.41)points,teamwork(18.73±2.11)points vs.(13.98±2.53)points,and total score(76.16±6.84)points vs.(56.66±7.92)points.All differences were statistically significant(p<0.05).The teaching satisfaction rate in the observation group was 97.62%(41/42),significantly higher than that in the control group at 78.57%(33/42),with a statistically significant difference(p<0.05).Conclusion:High-fidelity simulation teaching can effectively enhance the theoretical knowledge,practical skills,and emergency response capabilities of anesthesia nursing students in managing difficult airways,as well as improve teaching satisfaction.It is an efficient clinical teaching model for anesthesia nursing and is worthy of promotion and application.展开更多
Objective:To explore the application effect of scenario simulation teaching method based on Debriefing-GAS mode in the teaching of clinical nursing students in neurosurgery and its influence on critical thinking,clini...Objective:To explore the application effect of scenario simulation teaching method based on Debriefing-GAS mode in the teaching of clinical nursing students in neurosurgery and its influence on critical thinking,clinical practice ability and teaching satisfaction.Methods:A total of 100 nursing students who were doing their internship in the Department of Neurosurgery at a tertiary hospital in Sichuan Province from July 2024 to June 2025 were selected and divided into a control group and an experimental group,with 50 students in each group,using the historical control grouping method.The control group used the traditional teaching method for scenario simulation,while the experimental group used the Debriefing-GAS model for scenario simulation teaching.The teaching effect was evaluated using the DASH scale,the CIDI-CV scale,the clinical practice ability scale and the self-made teaching satisfaction questionnaire,and statistical analysis was conducted using SPSS 25.0.Results:The total DASH score of the experimental group(6.45±0.41)was significantly higher than that of the control group(5.12±0.47,t=14.01,p<0.001);The total score of critical thinking ability(338.6±22.5)was higher than that of the control group(307.8±24.1,t=6.55,p<0.001);The score of clinical practice ability(189.4±15.2)was significantly higher than that of the control group(168.7±14.9,t=6.49,p<0).Teaching satisfaction was 96%in the experimental group and 82%in the control group,statistically significant(χ^(2)=4.32,p=0.038).Conclusion:The scenario simulation teaching method based on the Debriefing-GAS model can significantly improve the learning initiative,reflective ability,critical thinking level and clinical practice ability of clinical nursing students,and enhance teaching satisfaction.展开更多
Objective:To gain insight into the potential factors that may cause perceived stress and anxiety in simulation education.Methods:A secondary qualitative analysis study using qualitative thematic synthesis.A local high...Objective:To gain insight into the potential factors that may cause perceived stress and anxiety in simulation education.Methods:A secondary qualitative analysis study using qualitative thematic synthesis.A local higher education institution that conducted pre-registration nursing programs.A total of 189 undergraduate nursing students that were never attained any clinical placement prior to the parent study.Focus group interviews were conducted to collect data that were then transcribed and analyzed through the qualitative thematic synthesis approach to develop themes.Results:Three themes were emerged from the participants’simulation experiences in terms of peoples(the observers vs the observed),actions(the prepared vs the unprepared),and settings(the realism vs the simulation).Conclusions:By considering and reviewing the current design and development of the simulation practice,the findings of this study contribute to the body of knowledge with valuable insights on stress and anxiety that may affect students’learning in simulation.展开更多
Objectives:The objective of this study is to evaluate the effect of simulation-based education(SBE)on the knowledge and skills of nursing students in managing childhood epileptic seizures.Materials and Methods:A quasi...Objectives:The objective of this study is to evaluate the effect of simulation-based education(SBE)on the knowledge and skills of nursing students in managing childhood epileptic seizures.Materials and Methods:A quasi-experimental design was conducted among 160 third-year B.Sc.nursing students at a SUM nursing college in Bhubaneswar,India.The experimental group(n=80)participated in a structured simulation-based session,while the control group(n=80)received routine lecture-demonstration sessions.Knowledge was measured using a 20-item multiple-choice questionnaire and skills were assessed through an Objective Structured Clinical Examination checklist.Results:The experimental group demonstrated significant improvements in posttest knowledge(13.15±1.40 vs.9.56±2.10;t=11.24,P<0.001)and skill scores(17.28±1.82 vs.12.42±2.18;t=10.96,P<0.001)compared with the control group.Ranked data analysis further confirmed higher postintervention knowledge and skill levels(Z=−-6.42 and−-6.55,respectively;P<0.001).These results indicated that SBE produced substantial gains in both cognitive and psychomotor domains.Conclusion:SBE significantly enhances nursing students’knowledge and skills in managing childhood epileptic seizures compared to traditional teaching.Incorporating structured simulation modules into pediatric nursing curricula can improve clinical competence,reduce anxiety,and bolster patient safety in pediatric emergency care.展开更多
Objective:To explore the application effect of in-situ simulation teaching method based on the concept of ideological and political education in the first aid skills training of clinical practice nursing students.Meth...Objective:To explore the application effect of in-situ simulation teaching method based on the concept of ideological and political education in the first aid skills training of clinical practice nursing students.Methods:A randomized controlled trial was used to select 220 trainee nurses from a hospital in 2024 and randomly divided them into the experimental group(n=110)and the control group(n=110).The control group adopted the traditional theory teaching+skill operation demonstration teaching method,while the experimental group implemented the in-situ simulation teaching plan integrating the ideological and political concepts of the curriculum on the basis of the traditional teaching.The scores of the first aid skills operation assessment,the Chinese version of the Jefferson Empathy Scale(JSE-NS),the Nursing Student Professional Identity Scale,and the Humanistic Care Ability Scale(CAI)were compared between the two groups after the intervention.Results:After the intervention,the scores of the first aid skills operation assessment,the total score of JSE-NS and each dimension,the total score of professional identity,and the total score of CAI and each dimension of the nursing students in the experimental group were significantly higher than those in the control group,and the differences were statistically significant(P<0.05).Conclusion:The in-situ simulation teaching method based on the concept of ideological and political education in the curriculum can effectively enhance the first aid skills level,empathy ability,professional identity and humanistic care ability of trainee nurses,and is an effective way to achieve the deep integration of first aid skills training and ideological and political education.展开更多
UHMWPE fibers exhibit impressive modulus and strength,but they have not reached their theoretical limits.Researchers focus on molecular weight,orientation,and crystallinity of UHMWPE,yet their contributions to mechani...UHMWPE fibers exhibit impressive modulus and strength,but they have not reached their theoretical limits.Researchers focus on molecular weight,orientation,and crystallinity of UHMWPE,yet their contributions to mechanical properties are unclear.Molecular dynamics simulations are valuable but often limited by computational constraints.Our aim is to simulate higher molecular weights to better represent real UHMWPE fibers.We used Packmol and Polyply methodologies to construct PE systems,with Polyply reproducing more reasonable properties of UHMWPE fibers.Additionally,tensile simulations showed that orientation and crystallinity greatly impact Young's modulus more than molecular weight.Energy decomposition indicated that higher molecular weights lead to covalent bonds that can withstand more energy during stretching,thus increasing breaking strength.Combining simulations with machine learning,we found that orientation has the most significant impact on Young's modulus,contributing 60%,and molecular weight plays the most crucial role in determining the breaking strength,accounting for 65%.This study provides a theoretical basis and guidelines for enhancing UHMWPE's modulus and strength.展开更多
Objectives This study aimed to compare the effectiveness of the semi-virtual simulation and traditional simulation teaching models based on the Standards of Best Practice(SOBP)according to the International Nursing As...Objectives This study aimed to compare the effectiveness of the semi-virtual simulation and traditional simulation teaching models based on the Standards of Best Practice(SOBP)according to the International Nursing Association for Clinical Simulation and Learning(INACSL)in the Adult Nursing course.Methods This study used a quasi-experimental design.A total of 94 third-year nursing students from a university in Beijing between November and December 2022 were recruited as participants.An innovative semi-virtual simulation teaching model was designed based on the SOBP established by the INACSL.In the Adult Nursing course,both the semi-virtual and traditional simulation teaching models were implemented.At the end of the simulation sessions,participants completed the Chinese version of the Simulation Effectiveness Tool-Modified(SET-M)to assess the effectiveness of the two teaching models.Results All nursing students completed the simulation sessions.There was no difference(t=−0.93,P=0.353)in the total scores between the semi-virtual simulation teaching model(50.87±5.30)and the traditional simulation teaching model(50.37±5.16).However,there was a statistically significant difference(t=−2.65,P=0.010)in the prebriefing section(semi-virtual simulation:5.60±0.71;traditional simulation:5.33±0.78).In contrast,no statistically significant differences were found for the scenario and debriefing sections(P>0.05).At the individual item level,statistical differences(P<0.05)between the two models were identified for items 1 and 9,but not for the remaining items(P>0.05).By analyzing the open-ended question,it was found that both simulation models were effective,and students’comments were similar.Conclusions The study demonstrated equivalent effectiveness between the semi-virtual and traditional simulation teaching models.Semi-virtual simulation teaching model could offer a more flexible and feasible approach to simulation teaching.展开更多
Combining the phase-field method and the moving boundary method,a three-dimensional phase-field simulation was conducted for the growth and grain evolution of Ti films deposited by physical vapor deposition under diff...Combining the phase-field method and the moving boundary method,a three-dimensional phase-field simulation was conducted for the growth and grain evolution of Ti films deposited by physical vapor deposition under different deposition rates and grain orientations.The evolution of grain morphology and grain orientation was also taken into consideration.Simulation results show that at lower deposition rates,the surface of the formed Ti film exhibits a distinct oriented texture structure.The surface roughness of the Ti film is positively correlated with the grain misorientation.Moreover,the surface roughness obtained from the simulation is in good agreement with the experiment results.展开更多
The core-shell structure in bulk TiNb binary alloy was designed and studied by phase-field simulations,where various core-shell structures were obtained by precise control of the initial and boundary conditions of the...The core-shell structure in bulk TiNb binary alloy was designed and studied by phase-field simulations,where various core-shell structures were obtained by precise control of the initial and boundary conditions of the TiNb binary alloy system during spinodal decomposition,and then the formation mechanism of core-shell structure was revealed.In addition,the influences of initial temperature gradient,average temperature,and initial concentration distribution of the system on the core-shell structure were investigated.Results show that the initial concentration gradient is the key factor for forming the core-shell structure.Besides,larger initial temperature gradient and higher average temperature can promote the formation of core-shell structure,which can be stabilized by adjusting the initial concentration distribution of the Nb-rich region in TiNb binary alloy.As a theoretical basis,this research provides a novel and simple strategy for the preparation of TiNb-based alloys and other materials with peculiar core-shell structures and desirable mechanical and physical properties.展开更多
Background:Mental health concerns among doctoral students have become increasingly prominent,with consistently low levels of well-being making this issue a critical focus in higher education research.This study aims t...Background:Mental health concerns among doctoral students have become increasingly prominent,with consistently low levels of well-being making this issue a critical focus in higher education research.This study aims to synthesize existing evidence on the mental health and well-being of doctoral students and to identify key factors and intervention strategies reported in the literature.Methods:A systematic review was conducted to examine the determinants and interventions related to doctoral students’mental health and well-being.Relevant studies were comprehensively searched in Web of Science,PubMed,Scopus,and EBSCO,with the final search conducted on September 19,2025.Records were screened according to predefined criteria:empirical studies on doctoral students’mental health or well-being published in English were included,while non-empirical,non-English,and non-doctoral-student-focused studies were excluded.A total of 56 studies were included after rigorous screening.Results:Doctoral students’mental health and well-being are shaped by multiple interacting factors across individual,academic,interpersonal,organizational,and environmental levels.Moreover,variations in gender,identity,discipline,study stage,and institutional context may further exacerbate or mitigate psychological distress.Existing intervention studies primarily focus on three approaches:psychologically oriented training,practice-based behavioral and learning programs,and relationship-or support network-based initiatives.Conclusion:This review offers integrated evidence on doctoral students’mental health and well-being and highlights the need for universities to assume greater responsibility in developing systematic and responsive support mechanisms.Current research remains limited by insufficient cross-cultural comparison,a lack of intersectional perspectives,and a scarcity of large-scale,long-term evaluations of intervention effectiveness.Future studies should give greater attention to institutional contexts and vulnerable groups while expanding the scope and rigor of intervention research.展开更多
Wire arc additive manufacturing(WAAM)has emerged as a promising approach for fabricating large-scale components.However,conventional WAAM still faces challenges in optimizing microstructural evolution,minimizing addit...Wire arc additive manufacturing(WAAM)has emerged as a promising approach for fabricating large-scale components.However,conventional WAAM still faces challenges in optimizing microstructural evolution,minimizing additive-induced defects,and alleviating residual stress and deformation,all of which are critical for enhancing the mechanical performance of the manufactured parts.Integrating interlayer friction stir processing(FSP)into WAAM significantly enhances the quality of deposited materials.However,numerical simulation research focusing on elucidating the associated thermomechanical coupling mechanisms remains insufficient.A comprehensive numerical model was developed to simulate the thermomechanical coupling behavior in friction stir-assisted WAAM.The influence of post-deposition FSP on the coupled thermomechanical response of the WAAM process was analyzed quantitatively.Moreover,the residual stress distribution and deformation behavior under both single-layer and multilayer deposition conditions were investigated.Thermal analysis of different deposition layers in WAAM and friction stir-assisted WAAM was conducted.Results show that subsequent layer deposition induces partial remelting of the previously solidified layer,whereas FSP does not cause such remelting.Furthermore,thermal stress and deformation analysis confirm that interlayer FSP effectively mitigates residual stresses and distortion in WAAM components,thereby improving their structural integrity and mechanical properties.展开更多
Objective:To determine the prevalence of bullying among university students in Jordan.The study also aims to identify potential predictors of bullying within the context of university students in Jordan.Methods:A cros...Objective:To determine the prevalence of bullying among university students in Jordan.The study also aims to identify potential predictors of bullying within the context of university students in Jordan.Methods:A cross-sectional study using a convenience sampling method was conducted with 350 university students from 3 institutions(2 public and 1 private),who par ticipated in this study.Data were collected through a self-repor ted questionnaire.Data analysis employed descriptive statistics,and multivariate linear regression was executed through the SPSS program(version 26)(IBM Corporation,Armonk,New York,United States)at 5% level of significance.Results:The findings revealed that 30% of the surveyed students reported never experiencing bullying,41.1% indicated rare exposure,20% reported occasional bullying,4.3% noted frequent exposure,and 4.6% reported constant exposure.Statistical analysis identified university and academic year as significant predictors of bullying.The university exhibited significance(B=-0.403,P≤0.05),while the academic year was also a significant predictor(B=0.213,P≤0.05).Conclusions:Given the prevalence and predictors identified,this study recommends the implementation of policies in universities to safeguard students from bullying.These policies should specifically target the most affected individuals.展开更多
基金funded by UBC Forest and Human Wellbeing Research(Grant No.GR020223)。
文摘The rise in urbanization has increasingly restricted access to natural environments,posing substantial risks to the physical and mental health of urban populations,including university students and other high-stress groups.This study examines the comparative effects of outdoor forest meditation(OFM)and indoor nature meditation(INM)in simulated nature environments(SNEs)on the physiological and psychological health of university students.A pretestposttest repeated measures design was employed,with 40students participating in three replicated OFM sessions and three identical INM sessions across varied SNE settings.Key physiological metrics,including heart rate(HR),blood pressure(BP),and salivary amylase concentration(SAC),were measured before and after each session.Psychological well-being was assessed using the Perceived Stress Scale-10(PSS-10)and Profile of Mood States(POMS).Results revealed significant reductions(p<0.05)in most post-intervention outcomes,except in the second indoor session across physiologic al and psychologic al responses,while multi-sensory INM sessions produced comparable benefits.Notably,SNEs with enhanced sensory components were effective,though slightly less impactful than OFM.These findings suggest that both OFM in nature and INM in SNEs can benefit university students'well-being.INM in SNEs offers a promising alternative for those with limited access to natural settings,contributing meaningfully to stress reduction and overall well-being.This study highlights the potential for nature-based strategies for human health in urban centres,advocating for further investigation into the long-term impacts of SNEs and optimal sensory configurations for maximizing therapeutic effects in urban populations.
基金Mechanism of HSP90 Regulating DRP1 Acetylation-Induced Mitochondrial Dynamics Imbalance in Endothelial Cells Promoting Atherosclerosis Progression,Shaanxi Provincial People’s Hospital(Project No.:2025JCYBBQN-1163)。
文摘Objective:To explore the application effect of high-fidelity simulation teaching in the training of emergency management for difficult airways among anesthesia nursing students,providing practical references for enhancing their clinical emergency response capabilities.Methods:Eighty-four anesthesia nursing students who interned in the Department of Anesthesiology of our hospital from September 2023 to March 2024 were selected as the research subjects.They were randomly divided into a control group(n=42)and an observation group(n=42)using the random number table method.The control group adopted the traditional teaching mode(theoretical lectures+video demonstrations),while the observation group adopted the high-fidelity simulation teaching mode.After the training,the theoretical assessment scores,operational assessment scores,emergency response capability scores,and teaching satisfaction of the two groups of students were compared.Results:The observation group scored significantly higher than the control group in both theoretical assessment(90.35±4.82)points and practical assessment(92.17±3.96)points,with scores of(79.26±5.78)points and(81.34±5.21)points,respectively,in the control group.The differences were statistically significant(p<0.05).The observation group also scored higher than the control group in all dimensions of emergency response capabilities and total scores,including airway assessment(18.92±2.05)points vs.(14.56±2.37)points,equipment selection(19.15±1.83)points vs.(13.89±2.24)points,operation execution(19.36±1.78)points vs.(14.23±2.41)points,teamwork(18.73±2.11)points vs.(13.98±2.53)points,and total score(76.16±6.84)points vs.(56.66±7.92)points.All differences were statistically significant(p<0.05).The teaching satisfaction rate in the observation group was 97.62%(41/42),significantly higher than that in the control group at 78.57%(33/42),with a statistically significant difference(p<0.05).Conclusion:High-fidelity simulation teaching can effectively enhance the theoretical knowledge,practical skills,and emergency response capabilities of anesthesia nursing students in managing difficult airways,as well as improve teaching satisfaction.It is an efficient clinical teaching model for anesthesia nursing and is worthy of promotion and application.
基金2023 Teaching Reform Project of Chengdu University of Traditional Chinese Medicine(Project No.:JGJD202322)。
文摘Objective:To explore the application effect of scenario simulation teaching method based on Debriefing-GAS mode in the teaching of clinical nursing students in neurosurgery and its influence on critical thinking,clinical practice ability and teaching satisfaction.Methods:A total of 100 nursing students who were doing their internship in the Department of Neurosurgery at a tertiary hospital in Sichuan Province from July 2024 to June 2025 were selected and divided into a control group and an experimental group,with 50 students in each group,using the historical control grouping method.The control group used the traditional teaching method for scenario simulation,while the experimental group used the Debriefing-GAS model for scenario simulation teaching.The teaching effect was evaluated using the DASH scale,the CIDI-CV scale,the clinical practice ability scale and the self-made teaching satisfaction questionnaire,and statistical analysis was conducted using SPSS 25.0.Results:The total DASH score of the experimental group(6.45±0.41)was significantly higher than that of the control group(5.12±0.47,t=14.01,p<0.001);The total score of critical thinking ability(338.6±22.5)was higher than that of the control group(307.8±24.1,t=6.55,p<0.001);The score of clinical practice ability(189.4±15.2)was significantly higher than that of the control group(168.7±14.9,t=6.49,p<0).Teaching satisfaction was 96%in the experimental group and 82%in the control group,statistically significant(χ^(2)=4.32,p=0.038).Conclusion:The scenario simulation teaching method based on the Debriefing-GAS model can significantly improve the learning initiative,reflective ability,critical thinking level and clinical practice ability of clinical nursing students,and enhance teaching satisfaction.
基金supported by School Research Grant of Tung Wah College(SRG210401).
文摘Objective:To gain insight into the potential factors that may cause perceived stress and anxiety in simulation education.Methods:A secondary qualitative analysis study using qualitative thematic synthesis.A local higher education institution that conducted pre-registration nursing programs.A total of 189 undergraduate nursing students that were never attained any clinical placement prior to the parent study.Focus group interviews were conducted to collect data that were then transcribed and analyzed through the qualitative thematic synthesis approach to develop themes.Results:Three themes were emerged from the participants’simulation experiences in terms of peoples(the observers vs the observed),actions(the prepared vs the unprepared),and settings(the realism vs the simulation).Conclusions:By considering and reviewing the current design and development of the simulation practice,the findings of this study contribute to the body of knowledge with valuable insights on stress and anxiety that may affect students’learning in simulation.
文摘Objectives:The objective of this study is to evaluate the effect of simulation-based education(SBE)on the knowledge and skills of nursing students in managing childhood epileptic seizures.Materials and Methods:A quasi-experimental design was conducted among 160 third-year B.Sc.nursing students at a SUM nursing college in Bhubaneswar,India.The experimental group(n=80)participated in a structured simulation-based session,while the control group(n=80)received routine lecture-demonstration sessions.Knowledge was measured using a 20-item multiple-choice questionnaire and skills were assessed through an Objective Structured Clinical Examination checklist.Results:The experimental group demonstrated significant improvements in posttest knowledge(13.15±1.40 vs.9.56±2.10;t=11.24,P<0.001)and skill scores(17.28±1.82 vs.12.42±2.18;t=10.96,P<0.001)compared with the control group.Ranked data analysis further confirmed higher postintervention knowledge and skill levels(Z=−-6.42 and−-6.55,respectively;P<0.001).These results indicated that SBE produced substantial gains in both cognitive and psychomotor domains.Conclusion:SBE significantly enhances nursing students’knowledge and skills in managing childhood epileptic seizures compared to traditional teaching.Incorporating structured simulation modules into pediatric nursing curricula can improve clinical competence,reduce anxiety,and bolster patient safety in pediatric emergency care.
基金2023 Sichuan Nursing Vocational College Humanities and Social Sciences Research Project(Project No.:2023RWSY53)。
文摘Objective:To explore the application effect of in-situ simulation teaching method based on the concept of ideological and political education in the first aid skills training of clinical practice nursing students.Methods:A randomized controlled trial was used to select 220 trainee nurses from a hospital in 2024 and randomly divided them into the experimental group(n=110)and the control group(n=110).The control group adopted the traditional theory teaching+skill operation demonstration teaching method,while the experimental group implemented the in-situ simulation teaching plan integrating the ideological and political concepts of the curriculum on the basis of the traditional teaching.The scores of the first aid skills operation assessment,the Chinese version of the Jefferson Empathy Scale(JSE-NS),the Nursing Student Professional Identity Scale,and the Humanistic Care Ability Scale(CAI)were compared between the two groups after the intervention.Results:After the intervention,the scores of the first aid skills operation assessment,the total score of JSE-NS and each dimension,the total score of professional identity,and the total score of CAI and each dimension of the nursing students in the experimental group were significantly higher than those in the control group,and the differences were statistically significant(P<0.05).Conclusion:The in-situ simulation teaching method based on the concept of ideological and political education in the curriculum can effectively enhance the first aid skills level,empathy ability,professional identity and humanistic care ability of trainee nurses,and is an effective way to achieve the deep integration of first aid skills training and ideological and political education.
基金financially supported by the National Natural Science Foundation of China(Nos.52303298 and 52233002)。
文摘UHMWPE fibers exhibit impressive modulus and strength,but they have not reached their theoretical limits.Researchers focus on molecular weight,orientation,and crystallinity of UHMWPE,yet their contributions to mechanical properties are unclear.Molecular dynamics simulations are valuable but often limited by computational constraints.Our aim is to simulate higher molecular weights to better represent real UHMWPE fibers.We used Packmol and Polyply methodologies to construct PE systems,with Polyply reproducing more reasonable properties of UHMWPE fibers.Additionally,tensile simulations showed that orientation and crystallinity greatly impact Young's modulus more than molecular weight.Energy decomposition indicated that higher molecular weights lead to covalent bonds that can withstand more energy during stretching,thus increasing breaking strength.Combining simulations with machine learning,we found that orientation has the most significant impact on Young's modulus,contributing 60%,and molecular weight plays the most crucial role in determining the breaking strength,accounting for 65%.This study provides a theoretical basis and guidelines for enhancing UHMWPE's modulus and strength.
文摘Objectives This study aimed to compare the effectiveness of the semi-virtual simulation and traditional simulation teaching models based on the Standards of Best Practice(SOBP)according to the International Nursing Association for Clinical Simulation and Learning(INACSL)in the Adult Nursing course.Methods This study used a quasi-experimental design.A total of 94 third-year nursing students from a university in Beijing between November and December 2022 were recruited as participants.An innovative semi-virtual simulation teaching model was designed based on the SOBP established by the INACSL.In the Adult Nursing course,both the semi-virtual and traditional simulation teaching models were implemented.At the end of the simulation sessions,participants completed the Chinese version of the Simulation Effectiveness Tool-Modified(SET-M)to assess the effectiveness of the two teaching models.Results All nursing students completed the simulation sessions.There was no difference(t=−0.93,P=0.353)in the total scores between the semi-virtual simulation teaching model(50.87±5.30)and the traditional simulation teaching model(50.37±5.16).However,there was a statistically significant difference(t=−2.65,P=0.010)in the prebriefing section(semi-virtual simulation:5.60±0.71;traditional simulation:5.33±0.78).In contrast,no statistically significant differences were found for the scenario and debriefing sections(P>0.05).At the individual item level,statistical differences(P<0.05)between the two models were identified for items 1 and 9,but not for the remaining items(P>0.05).By analyzing the open-ended question,it was found that both simulation models were effective,and students’comments were similar.Conclusions The study demonstrated equivalent effectiveness between the semi-virtual and traditional simulation teaching models.Semi-virtual simulation teaching model could offer a more flexible and feasible approach to simulation teaching.
基金National MCF Energy R&D Program of China(2018YFE0306100)Natural Science Foundation of Hunan Province for Distinguished Young Scholars(2021JJ10062)+1 种基金National Natural Science Foundation of China(52101028)China Postdoctoral Science Foundation(2021M703628)。
文摘Combining the phase-field method and the moving boundary method,a three-dimensional phase-field simulation was conducted for the growth and grain evolution of Ti films deposited by physical vapor deposition under different deposition rates and grain orientations.The evolution of grain morphology and grain orientation was also taken into consideration.Simulation results show that at lower deposition rates,the surface of the formed Ti film exhibits a distinct oriented texture structure.The surface roughness of the Ti film is positively correlated with the grain misorientation.Moreover,the surface roughness obtained from the simulation is in good agreement with the experiment results.
基金National Natural Science Foundation of China(12372152)Guangdong Basic and Applied Basic Research Foundation(2023A1515011819,2024A1515012469)Shandong Provincial Natural Science Foundation(ZR2023MA058)。
文摘The core-shell structure in bulk TiNb binary alloy was designed and studied by phase-field simulations,where various core-shell structures were obtained by precise control of the initial and boundary conditions of the TiNb binary alloy system during spinodal decomposition,and then the formation mechanism of core-shell structure was revealed.In addition,the influences of initial temperature gradient,average temperature,and initial concentration distribution of the system on the core-shell structure were investigated.Results show that the initial concentration gradient is the key factor for forming the core-shell structure.Besides,larger initial temperature gradient and higher average temperature can promote the formation of core-shell structure,which can be stabilized by adjusting the initial concentration distribution of the Nb-rich region in TiNb binary alloy.As a theoretical basis,this research provides a novel and simple strategy for the preparation of TiNb-based alloys and other materials with peculiar core-shell structures and desirable mechanical and physical properties.
文摘Background:Mental health concerns among doctoral students have become increasingly prominent,with consistently low levels of well-being making this issue a critical focus in higher education research.This study aims to synthesize existing evidence on the mental health and well-being of doctoral students and to identify key factors and intervention strategies reported in the literature.Methods:A systematic review was conducted to examine the determinants and interventions related to doctoral students’mental health and well-being.Relevant studies were comprehensively searched in Web of Science,PubMed,Scopus,and EBSCO,with the final search conducted on September 19,2025.Records were screened according to predefined criteria:empirical studies on doctoral students’mental health or well-being published in English were included,while non-empirical,non-English,and non-doctoral-student-focused studies were excluded.A total of 56 studies were included after rigorous screening.Results:Doctoral students’mental health and well-being are shaped by multiple interacting factors across individual,academic,interpersonal,organizational,and environmental levels.Moreover,variations in gender,identity,discipline,study stage,and institutional context may further exacerbate or mitigate psychological distress.Existing intervention studies primarily focus on three approaches:psychologically oriented training,practice-based behavioral and learning programs,and relationship-or support network-based initiatives.Conclusion:This review offers integrated evidence on doctoral students’mental health and well-being and highlights the need for universities to assume greater responsibility in developing systematic and responsive support mechanisms.Current research remains limited by insufficient cross-cultural comparison,a lack of intersectional perspectives,and a scarcity of large-scale,long-term evaluations of intervention effectiveness.Future studies should give greater attention to institutional contexts and vulnerable groups while expanding the scope and rigor of intervention research.
基金National Key Research and Development Program of China(2022YFB4600902)Shandong Provincial Science Foundation for Outstanding Young Scholars(ZR2024YQ020)。
文摘Wire arc additive manufacturing(WAAM)has emerged as a promising approach for fabricating large-scale components.However,conventional WAAM still faces challenges in optimizing microstructural evolution,minimizing additive-induced defects,and alleviating residual stress and deformation,all of which are critical for enhancing the mechanical performance of the manufactured parts.Integrating interlayer friction stir processing(FSP)into WAAM significantly enhances the quality of deposited materials.However,numerical simulation research focusing on elucidating the associated thermomechanical coupling mechanisms remains insufficient.A comprehensive numerical model was developed to simulate the thermomechanical coupling behavior in friction stir-assisted WAAM.The influence of post-deposition FSP on the coupled thermomechanical response of the WAAM process was analyzed quantitatively.Moreover,the residual stress distribution and deformation behavior under both single-layer and multilayer deposition conditions were investigated.Thermal analysis of different deposition layers in WAAM and friction stir-assisted WAAM was conducted.Results show that subsequent layer deposition induces partial remelting of the previously solidified layer,whereas FSP does not cause such remelting.Furthermore,thermal stress and deformation analysis confirm that interlayer FSP effectively mitigates residual stresses and distortion in WAAM components,thereby improving their structural integrity and mechanical properties.
文摘Objective:To determine the prevalence of bullying among university students in Jordan.The study also aims to identify potential predictors of bullying within the context of university students in Jordan.Methods:A cross-sectional study using a convenience sampling method was conducted with 350 university students from 3 institutions(2 public and 1 private),who par ticipated in this study.Data were collected through a self-repor ted questionnaire.Data analysis employed descriptive statistics,and multivariate linear regression was executed through the SPSS program(version 26)(IBM Corporation,Armonk,New York,United States)at 5% level of significance.Results:The findings revealed that 30% of the surveyed students reported never experiencing bullying,41.1% indicated rare exposure,20% reported occasional bullying,4.3% noted frequent exposure,and 4.6% reported constant exposure.Statistical analysis identified university and academic year as significant predictors of bullying.The university exhibited significance(B=-0.403,P≤0.05),while the academic year was also a significant predictor(B=0.213,P≤0.05).Conclusions:Given the prevalence and predictors identified,this study recommends the implementation of policies in universities to safeguard students from bullying.These policies should specifically target the most affected individuals.
