Recent advances of metal vacancies in energy and environmental catalysis:Synthesis,characterization,and roles

With the ongoing depletion of fossil fuels,energy and environmental issues have become increasingly critical,necessitating the search for effective solutions.Catalysis,being one of the hallmarks of modern industry,offers a promising avenue for researchers.However,the question of how to significantly enhance the performance of catalysts has gradually drawn the attention of scholars.Defect engineering,a commonly employed and effective approach to improve catalyst activity,has become a significant research focus in the catalysis field in recent years.Nonmetal vacancies have received extensive attention due to their simple form.Consequently,exploration of metal vacancies has remained stagnant for a considerable period,resulting in a scarcity of comprehensive reviews on this topic.Therefore,based on the latest research findings,this paper summarizes and consolidates the construction strategies for metal vacancies,characterization techniques,and their roles in typical energy and environmental catalytic reactions.Additionally,it outlines potential challenges in the future,aiming to provide valuable references for researchers interested in investigating metal vacancies.

Work-family behavioral role conflict and daytime sleepiness on suicide risk among Chinese nurses:A cross-sectional study

BACKGROUND Work-family conflicts and daytime sleepiness are related to the risk of suicide.At present,no study has investigated the relationship between nurses’work-family behavioral role conflict and suicide risk.Moreover,it has not been confirmed whether,considering the effect of daytime sleepiness on suicide risk,daytime sleepiness mediates the effect of work-family behavioral role conflict and suicide risk.AIM To explore the pathway relationships among nurses'work-family behavioral role conflict,daytime sleepiness,and suicide risk.METHODS Convenience and purposive sampling methods were used to select 750 nurses from six provinces,including Jiangxi,Sichuan,and Shanxi.The work-family behavioral role conflict scale,the Chinese adult daytime sleepiness scale,and the suicide behavior questionnaire were used for the survey.The data were statistically analyzed via SPSS 25.0 software,Pearson correlation analysis was used to explore the correlations between the variables,the PROCESS 4.0 program was used for the mediation effect analysis,and the mediation effect model was tested via the bootstrap method.RESULTS Nurses'work-family behavioral role conflict and daytime sleepiness were positively correlated with suicide risk(r=734,0.717).Work-family behavioral role conflict positively predicted suicide risk(β=0.118),and daytime sleepiness positively predicted suicide risk(β=0.152).Daytime sleepiness partially mediated the role of nurses'work-family behavioral role conflict and suicide risk,with a mediation effect value of 0.046 and a mediation effect accounting for 38.98%.CONCLUSION The results of the Pearson correlation analysis and mediation effect analysis revealed that nurses'work-family behavioral role conflict has a direct effect on suicide risk and indirectly affects suicide risk through daytime drowsiness symptoms.

Role-play联合翻转课堂教学法对护理实习生新生儿复苏知信行的影响

目的分析角色扮演(Role-play)联合翻转课堂教学法对护理实习生新生儿复苏知信行的影响。方法选取2022年10月1日至2023年8月1日在我院产科及儿科实习的80名本科段护理实习生进行前瞻性研究,将其随机分为试验组(采用Role-play联合翻转课堂教学法进行新生儿复苏技能培训)和对照组(采用传统临床教学法进行新生儿复苏技能培训),各40名。比较两组的教学效果。结果试验组的理论知识、态度信念得分高于对照组,差异具有统计学意义(P<0.05)。试验组的复苏操作得分高于对照组,差异具有统计学意义(P<0.05)。试验组的灵活应变能力、资源利用能力及沟通协作能力得分均高于对照组,差异具有统计学意义(P<0.05)。试验组的教学满意度高于对照组,差异具有统计学意义(P<0.05)。结论Role-play联合翻转课堂教学法在护理实习生新生儿复苏教学中的效果优于传统临床教学法。

Role Dynamic Allocation of Human-Robot Cooperation Based on Reinforcement Learning in an Installation of Curtain Wall

A real-time adaptive roles allocation method based on reinforcement learning is proposed to improve humanrobot cooperation performance for a curtain wall installation task.This method breaks the traditional idea that the robot is regarded as the follower or only adjusts the leader and the follower in cooperation.In this paper,a self-learning method is proposed which can dynamically adapt and continuously adjust the initiative weight of the robot according to the change of the task.Firstly,the physical human-robot cooperation model,including the role factor is built.Then,a reinforcement learningmodel that can adjust the role factor in real time is established,and a reward and actionmodel is designed.The role factor can be adjusted continuously according to the comprehensive performance of the human-robot interaction force and the robot’s Jerk during the repeated installation.Finally,the roles adjustment rule established above continuously improves the comprehensive performance.Experiments of the dynamic roles allocation and the effect of the performance weighting coefficient on the result have been verified.The results show that the proposed method can realize the role adaptation and achieve the dual optimization goal of reducing the sum of the cooperator force and the robot’s Jerk.

Understanding the roles of Brønsted/Lewis acid sites on manganese oxide-zeolite hybrid catalysts for low-temperature NH_(3)-SCR

Although metal oxide-zeolite hybrid materials have long been known to achieve enhanced catalytic activity and selectivity in NO_(x)removal reactions through the inter-particle diffusion of intermediate species,their subsequent reaction mechanism on acid sites is still unclear and requires investigation.In this study,the distribution of Brønsted/Lewis acid sites in the hybrid materials was precisely adjusted by introducing potassium ions,which not only selectively bind to Brønsted acid sites but also potentially affect the formation and diffusion of activated NO species.Systematic in situ diffuse reflectance infrared Fourier transform spectroscopy analyses coupled with selective catalytic reduction of NO_(x)with NH_(3)(NH_(3)-SCR)reaction demonstrate that the Lewis acid sites over MnO_(x)are more active for NO reduction but have lower selectivity to N_(2)than Brønsted acids sites.Brønsted acid sites primarily produce N_(2),whereas Lewis acid sites primarily produce N_(2)O,contributing to unfavorable N_(2)selectivity.The Brønsted acid sites present in Y zeolite,which are stronger than those on MnO_(x),accelerate the NH_(3)-SCR reaction in which the nitrite/nitrate species diffused from the MnO_(x)particles rapidly convert into the N_(2).Therefore,it is important to design the catalyst so that the activated NO species formed in MnO_(x)diffuse to and are selectively decomposed on the Brønsted acid sites of H-Y zeolite rather than that of MnO_(x)particle.For the physically mixed H-MnO_(x)+H-Y sample,the abundant Brønsted/Lewis acid sites in H-MnO_(x)give rise to significant consumption of activated NO species before their inter-particle diffusion,thereby hindering the enhancement of the synergistic effects.Furthermore,we found that the intercalated K+in K-MnO_(x)has an unexpected favorable role in the NO reduction rate,probably owing to faster diffusion of the activated NO species on K-MnO_(x)than H-MnO_(x).This study will help to design promising metal oxide-zeolite hybrid catalysts by identifying the role of the acid sites in two different constituents.

Associations between residence and cognitive function among Chinese older adults: the mediating role of leisure activity

Background:Cognitive function is a current research hotspot,residence may be related to differences in cognitive function,and the mediating role of leisure activities are limited in Chinese research.This study used leisure activities as a mediating variable to investigate the mediating role of leisure activity between place of residence(city-town-rural)and cognitive function among Chinese older,this is where the innovation of the article comes in.Methods:Using cross-sectional data from the 2018 Chinese Longitudinal Healthy Longevity Survey,Pearson correlation analyses were employed to examine the relationships among various indicators.Mediation analyses were conducted using the SPSS PROCESS macro program,version 3.5,written by Hayes,to explore the mediating effects of leisure activity between place of residence and cognitive function in older adults.Results:A total of 10955 older adults were included in this study,with a mean age of(84.23±11.57)years.Among them,2739(24.8%)lived in the city,3627(33.1%)in town,and 4615(42.1%)in rural areas;their leisure activity score was(5.34±3.77),and their cognitive function score was(24.69±6.65).Place of residence,leisure activities,and cognitive function were significantly correlated(P<0.01).Using city as a reference,place of residence is negatively associated with cognitive function,and place of residence not only had a direct effect on cognitive function in older adults:town-cognitive function(effect=–0.399;95%confidence interval(CI)=(–0.685,–0.113));rural-cognitive function(effect=–0.42;95%CI=(–0.698,–0.141)).There were also indirect effects on cognitive function through the pathway of leisure activity:town-leisure activity-cognitive function(effect=–0.17;95%CI=(–0.246,–0.1)),rural-leisure activity-cognitive function(effect=–0.199;95%CI=(–0.272,–0.13)).Conclusion:Leisure activities play a partially mediating role between the impact of place of residence and cognitive function in Chinese older adults,and it is vital to pay attention to the impact of place of residence on the cognitive function of older adults in various aspects,and to increase the participation rate of older adults in leisure activities,which is beneficial to the prevention of cognitive decline and the protection of older adult’s physical and mental health.

The Influence of Academic Self-Efficacy on Learning Engagement in Online Education in China:The Mediating Role of Effort

The shift towards online intelligent learning has become the norm in education and is now a fundamental part of modern educational activities.However,this new model can influence students’learning behavior and lead to changes in their approach to learning.Based on online intelligent learning,we investigated how the academic self-efficacy of nursing students affects their engagement with learning and explored the role of academic attribution as a mediator.Five hundred fifty-three nursing college students from Hebei and Hunan provinces in China participated in the online questionnaire.The results revealed that effort plays a mediating role in the relationship between academic self-efficacy and learning engagement.

Study on the Promoting Role of Animating Zhuang Non-Heritage Folktales in the Ethnic Culture Industry

This study aims to explore the role of animating Zhuang non-heritage folktales in promoting the national culture industry.Using literature research,case studies,and comparative research methods,the positive impacts are analyzed in depth across four dimensions:cultural value inheritance,market demand,dissemination channels,and industrial innovation.The results show that animating Zhuang non-heritage folktales can help inherit national culture,meet market demand,broaden communication channels,and promote industrial innovation.Finally,this paper proposes corresponding policy suggestions and implementation paths to provide references for the sustainable development of the ethnic culture industry.

Theoretical Analysis and Practical Reflection on the Role Conflict of Double-Qualified Teachers in University-Affiliated Hospitals

Taking role conflict as the starting point,this article examines and reflects on the development of clinical teachers.In the process of the occurrence,development,and resolution of role conflicts among clinical teachers,there are many hidden issues related to the development of clinical teachers.The development of clinical teacher teaching and role conflict management contain similar educational philosophies and practical issues.This study draws on classic theories and research achievements in the development of university teachers and conducts theoretical analysis and practical reflection on the development of clinical teachers in medical colleges from the perspective of role conflict in social psychology.Policy recommendations are proposed,including strengthening the construction of teaching systems at the hospital organizational environment level,enhancing the role identity and teacher beliefs of clinical teachers,promoting their teaching development and academic learning,and ensuring their normal teaching investment;promoting leadership support at the level of interpersonal interaction and leveraging the role of colleague support in alleviating role conflicts;enhancing individual teacher beliefs,teacher role learning,and role skills.

Exploration of the Evolution of Teacher Roles and Professional Development Needs Among University English Instructors

The role of university English instructors has evolved significantly over the years,encompassing various aspects.This paper explores the evolution of the role of university English instructors and examines the current challenges and opportunities they face in today’s educational landscape.It delves into the multifaceted nature of their responsibilities and discusses the importance of continuous professional development to meet the evolving needs of students and the demands of the profession.

Exploration of Teaching Development Strategies for Double-Qualified Teachers in University- Affiliated Hospitals Based on Role Conflict Theory

This study draws on the classic theories and research achievements of university teacher development,and from the perspective of role conflict in social psychology,proposes policy recommendations for the development of clinical teachers in medical colleges,including following different stages of teacher development and designing teaching development strategies at different levels;designing the content and form of teaching development activities to meet the temporal and spatial needs of clinical teachers;and building an academic community for clinical teachers to promote the creation of teaching development behaviors.

Mediating role of fear of progression between sensory processing sensitivity and stigma in lung cancer patients:a cross-sectional study

Objective:To explore the association of sensory processing sensitivity(SPS)and stigma as well as the mediating role of fear of progression(FoP)in lung cancer patients.Methods:Two hundred and forty-two lung cancer patients completed a self-reported questionnaire,which included the highly sensitive person scale(HSPS),fear of progression questionnaire-short form(FoP-Q-SF),and the Cataldo Lung Cancer Stigma Scale(CLCSS).Results:CLCSS was positively correlated with FoP(Pearson correlation=0.217,P<0.01)and HSPS(Pearson correlation=0.187,P<0.01),FoP was positively correlated with HSPS(Pearson correlation=0.199,P<0.01).FoP played a mediating role between SPS and stigma(a×b=0.025,95%confidence intervals[CI][0.004,0.054]),and the proportion of mediating effect(ab/c)was 21%(ab=0.025,c=0.120).Conclusions:Patients with higher SPS reported higher level of stigma,and FoP has a mediating role between SPS and stigma.Our discussion deemed that psychological intervention may help higher SPS patients reduce the harm of FoP and further reduce stigma.

Women’s Social Roles and Peace Building in Al-Abassiya Locality:2012-2024

This research focused on the social roles of women in Al-Abassiya locality,South Kordofan State,examining the obstacles they face and the impact on their participation in peace building.Using qualitative methods,data were collected through various means,revealing that conflicts have significantly affected women’s lives,particularly in rural areas.Women play key roles in family,education,health services,and humanitarian aid,but their involvement in conflict resolution and peace building activities is limited.Obstacles include cognitive,economic,social,and institutional barriers.Recommendations include providing education and training programs,strengthening economic status,ensuring women’s representation in decision-making bodies,advocating for legal reforms promoting gender equality,improving access to information technologies,educating communities on women’s involvement in peace building,and providing support services for women affected by conflicts.

The Role of Teachers’Apperception in Herbart’s Theory for Chinese Teaching in Shenzhen Primary Schools of China

This paper deeply analyzes the practical application of Herbart’s educational concept in contemporary education and teaching,especially its guiding significance to the primary school Chinese classroom in Shenzhen area.Herbart proposed that teachers should play a key role in students’cognitive process,that is,help students better understand and master new knowledge by combining it with existing knowledge.The survey results show that although teachers have some understanding of Herbart’s educational philosophy,it is not widely used in the concrete teaching process.However,the study also shows that there is a positive relationship between Herbart’s theory and students’academic performance,indicating that it plays an important role in improving students’interest and engagement in learning.The research also reveals the differences between educational concepts and practices,as well as the uneven distribution of educational resources,and puts forward measures to alleviate these contradictions,such as strengthening teacher training,improving teaching methods,and emphasizing moral education.At the same time,the study also highlights the critical role of teachers in promoting knowledge integration,arousing learning enthusiasm,shaping students’moral character,and promoting personal and professional growth.

角色冲突视域下大学女校长领导力提升的障碍及其成因与超越

大学女校长领导力的有效发挥,是提升大学治理能力和决策科学化水平的重要途径,是我国高等教育高质量发展的迫切需要。当前,大学女校长在数量上仍处于劣势,在其领导力发挥与提升的过程中,大学女校长的角色冲突主要表现为角色期待超载情境下的行为偏离、角色适应障碍情境下的压力附加、角色分配困境情境下的母职惩罚。经济社会的迅速发展、制度缺失与支持机制不健全、高校领导队伍结构不合理、女校长角色调适能力不足是产生角色冲突的主要原因。应从价值观念、制度机制、组织氛围与个体调适能力四个方面入手,助力大学女校长突破障碍进而提升其领导力。

身份协同与角色认同作用下的知识动员研究——基于复杂系统视域

[目的/意义]从复杂系统角度,结合协同学理论和角色认同理论揭示实践社区中知识动员协同互动的内在机制,对解决角色定位与身份认知问题以实现知识动员高效运行具有重要的理论价值与实践意义。[方法/过程]借鉴相关研究成果,总结出5种知识动员角色,提出5种复杂驱动力,对身份协同及角色认同推动知识动员的作用进行探讨,并构建了知识动员动态模型和运行机制。[结果/结论]知识动员活动中存在4种“核心角色”和1种“边缘角色”,强化角色认知可以促进组织角色认同;身份协同有助于增强复杂环境的适应性;复杂系统视域下的知识动员在5种复杂动力的灵活组合下实现价值涌现;大量的由小及大、从局部到整体的“微动员”现象是促进知识动员持续性的关键。

危机情境下领导路径-目标澄清行为对角色绩效的影响

危机情境下,领导需要澄清团队目标进而提升员工角色绩效。然而,何种路径-目标澄清行为更加有效亟待明确。整合路径目标理论与变革-交易领导框架,本文探究两种竞争性路径-目标澄清行为(愿景阐释行为与积极纠偏行为)对员工角色绩效的影响。基于某连锁品牌员工的两阶段调查数据发现,愿景阐释行为通过提高团队目标的清晰性增强了员工角色绩效,而积极纠偏行为通过提高团队目标的清晰性对员工角色绩效的影响不显著。团队情绪(团队恐惧与团队自满)调节了路径-目标澄清行为对团队目标清晰性的影响:当团队恐惧情绪水平较高时,愿景阐释行为对团队目标清晰性的积极影响更大;而当团队自满情绪水平较高时,积极纠偏行为对团队目标清晰性的积极影响更大。团队情绪进一步调节了团队目标清晰性在路径-目标澄清行为与员工角色绩效之间的中介机制。本文剖析了团队情绪对于路径-目标澄清行为有效性的影响,对于实现危机情境下的有效领导具有指导意义。

协作论证学习中学习者角色涌现及知识建构话语模式研究

协作论证学习是培养学生沟通与交流、批判性思维能力的教学方式。从关联、动态视角分析学习者角色及其知识建构话语模式,有助于全面理解协作论证学习角色涌现及其知识建构参与。研究设计专家角色脚本支持学生协作论证讨论,采集学生协作论证讨论的话语数据,通过内容分析、聚类分析、认知网络分析和序列模式挖掘的方法探索学习者角色涌现及知识建构话语模式。研究发现,协作论证学习中共涌现出四类学习者角色,分别是专家—高知识建构者、专家—低知识建构者、实践者—高知识建构者和实践者—低知识建构者,同时四种角色的知识建构话语模式存在显著差异。高知识建构者表现出复杂、高阶的知识建构话语的互动,积极地为协作论证讨论贡献群体智慧。实践者—低知识建构者在论证讨论中发表观点并赞同同伴观点,但对个人观点的深入阐述或对同伴观点的批判性思考和评价不足,缺乏深层次知识贡献和同伴互动。研究发现为通过教学干预来提升群体认知提供了启示。

战略企业家推进高水平科技自立自强的角色价值与作用机制

战略企业家是国家战略人才力量的重要组成部分,在推进高水平科技自立自强过程中具有无可替代的价值。战略企业家既是企业家发展边界的突破,也是企业家队伍建设的未来指向。基于企业家理论及我国优秀企业家、优秀企业的实践基础,从角色期待视角对中国情境下战略企业家的内涵进行创新性界定,刻画战略企业家的典型特征,探讨战略企业家与一般企业家的异同,整体上形成对战略企业家的新认知。在此基础上,剖析战略企业家在实现高水平科技自立自强过程中的战略人才价值和创新人才价值,发现战略企业家通过涓滴效应、同群效应、桥梁效应在企业、产业链、创新联合体等场域发挥重要作用。系统回答了战略企业家“是谁—有何价值—如何发挥价值”的问题,研究成果可为新时代战略企业家助推高水平科技自立自强提供理论支撑和实践指导。

构筑图书馆高质量服务路径——新版《图书馆服务宣言》解读

[目的/意义]新版《图书馆服务宣言》的发布,对图书馆服务工作进行了科学定位,以图书馆服务工作标准和价值追求向社会和读者进行了宣示和承诺,是中国图书馆事业发展的里程碑,为图书馆服务工作指明了方向。[方法/过程]以《宣言》为指导,全方位审视当前的服务实践,树立科学的发展观、资源观、读者观、服务观;深入调查研究,发现自身优势和问题,明确方向,规范发展。[结果/结论]将《宣言》作为图书馆建设发展目标和基本价值追求:提升服务能力,建立高校图书馆高质量服务新格局;固本培元,筑牢高校图书馆服务高质量水平;创新践行,开辟图书馆高质量服务方向。完善细节,优化服务,建设更贴近读者、更接地气的图书馆服务体系,推进高校图书馆服务高质量发展。