期刊文献+
共找到615篇文章
< 1 2 31 >
每页显示 20 50 100
Embedding acceptance and commitment therapy in postgraduate psychology education:A South African action research study 认领 引用
1
作者 Lauren Martin Henry D.Mason Juan A.Nel 《Journal of Psychology in Africa》 2026年第2期301-307,共7页
This study explored how psychology educators in South Africa can be professionally developed to embed Acceptance and Commitment Therapy(ACT)principles into their pedagogy,thereby enhancing psychological flexibility am... This study explored how psychology educators in South Africa can be professionally developed to embed Acceptance and Commitment Therapy(ACT)principles into their pedagogy,thereby enhancing psychological flexibility among postgraduate students.Using a Collaborative Action Research approach,seven educators and thirteen students participated in a ten-month intervention comprising four iterative cycles of training,implementation,and reflection.The thematic analysis found that ACT-informed pedagogy not only promoted student resilience,present-moment awareness(mindfulness),and values-based engagement(authenticity)but also catalysed shifts in educator identity toward more reflexive teaching.Students cultivated resilience by learning to tolerate emotional discomfort and sustain values-driven action,while developing mindfulness through present-moment awareness that fostered engagement.This process also nurtured authenticity,as students aligned their academic and professional identities with personally meaningful values,paralleled by educators’growing reflexivity and relational openness,signalling a values-informed pedagogy.These findings provide a theoretically grounded,contextually responsive model for cultivating soft skills in higher education,affirming the potential of ACT as a scalable,culturally congruent framework for professional development. 展开更多
关键词 Acceptance and commitment therapy(ACT) collaborative action research(CAR) higher education pedagogy mindfulness-based interventions postgraduate psychology education psychological flexibility soft skills development
暂未订购 下载PDF
Strength-constrained unit commitment in IBR dominant power systems 认领 引用
2
作者 Yong-Kyu Kim Sang-Ho Lee Gyu-Sub Lee 《iEnergy》 EI 2025年第2期121-131,共11页
In this paper,a strength-constrained unit commitment(UC)model incorporating system strength constraints based on the weighted short-circuit ratio(WSCR)is proposed.This model facilitates the comprehensive assessment of... In this paper,a strength-constrained unit commitment(UC)model incorporating system strength constraints based on the weighted short-circuit ratio(WSCR)is proposed.This model facilitates the comprehensive assessment of area-wide system strength in power systems with high inverter-based resource(IBR)penetration,thereby contributing to the mitigation of weak grid issues.Unlike traditional models,this approach considers the interactions among multiple IBRs.The UC problem is initially formulated as a mixed-integer nonlinear programming(MINLP)model,reflecting WSCR and bus impedance matrix modification constraints.To enhance computational tractability,the model is transformed into a mixed-integer linear programming(MILP)form.The effectiveness of the proposed approach is validated through simulations on the IEEE 5-bus,IEEE 39-bus,and a modified Korean power system,demonstrating the ability of the proposed UC model enhancing system strength compared to the conventional methodologies. 展开更多
关键词 Unit commitment system strength inverter-based resource power system stability mixed-integer programming
暂未订购 下载PDF
Problem-structure-informed quantum approximate optimization for large-scale unit commitment with limited qubits 认领 引用
3
作者 Jingxian Zhou Ziqing Zhu +1 位作者 Linghua Zhu Siqi Bu 《iEnergy》 EI 2025年第4期215-218,共4页
As power systems expand,solving the unit commitment problem(UCP)becomes increasingly challenging due to the curse of dimensionality,and traditional methods often struggle to balance computational efficiency and soluti... As power systems expand,solving the unit commitment problem(UCP)becomes increasingly challenging due to the curse of dimensionality,and traditional methods often struggle to balance computational efficiency and solution optimality.To tackle this issue,we propose a problem-structure-informed quantum approximate optimization algorithm(QAOA)framework that fully exploits the quantum advantage under extremely limited quantum resources.Specifically,we leverage the inherent topological structure of power systems to decompose large-scale UCP instances into smaller subproblems,which are solvable in parallel by limited number of qubits.This decomposition not only circumvents the current hardware limitations of quantum computing but also achieves higher performance as the graph structure of the power system becomes more sparse.Consequently,our approach can be extended to future power systems that are larger and more complex. 展开更多
关键词 Unit commitment problem quadratic unconstrained binary optimization quantum approximate optimization algorithm
暂未订购 下载PDF
Effects of Internet-Based Acceptance and Commitment Therapy on College Students’Mental Health: A Randomized Controlled Trial 认领 引用
4
作者 Jing Wang Shuanghu Fang +1 位作者 Zihua Li Shaoyong Ma 《International Journal of Mental Health Promotion》 2025年第6期845-861,共17页
Objectives:College students face increasing mental health challenges.Although Acceptance and CommitmentTherapy(ACT)is effective,the efficacy of Internet-based ACT(iACT)needs further exploration.Methods:This study exam... Objectives:College students face increasing mental health challenges.Although Acceptance and CommitmentTherapy(ACT)is effective,the efficacy of Internet-based ACT(iACT)needs further exploration.Methods:This study examines the efficacy of iACT on college students’mental health through a randomized controlled trial.We recruited 90 college students(19.16±1.02 years old)and randomly divided them into the iACT group,face-to-face ACT group,and control group.The effects of the interventions were evaluated using the comprehensive assessment of ACT processes(CompACT)and the Depression Anxiety Stress Scales(DASS-21).Results:Two-factor repeated measures ANOVA revealed a significant time main effect of iACT.Face-to-face ACT and iACT effectively improved college students’psychological flexibility[F(2,83)=18.78,p0.05).Conclusion:While iACT and face-to-face ACT are effective shortterm interventions,face-to-face ACT demonstrates superior sustainability.Integrating guided sessions into iACT may enhance long-term outcomes.These findings advocate for blended interventions to address college students’mental health needs,particularly in resource-limited settings. 展开更多
关键词 Internet-based acceptance and commitment therapy mental health college students randomized controlled trial
暂未订购 下载PDF
Exact quantum algorithm for unit commitment optimization based on partially connected quantum neural networks 认领 引用
5
作者 Jian Liu Xu Zhou +1 位作者 Zhuojun Zhou Le Luo 《Chinese Physics B》 SCIE EI CAS CSCD 2025年第10期303-312,共10页
The quantum hybrid algorithm has recently become a very promising and speedy method for solving larger-scale optimization problems in the noisy intermediate-scale quantum(NISQ)era.The unit commitment(UC)problem is a f... The quantum hybrid algorithm has recently become a very promising and speedy method for solving larger-scale optimization problems in the noisy intermediate-scale quantum(NISQ)era.The unit commitment(UC)problem is a fundamental problem in the field of power systems that aims to satisfy the power balance constraint with minimal cost.In this paper,we focus on the implementation of the UC solution using exact quantum algorithms based on the quantum neural network(QNN).This method is tested with a ten-unit system under the power balance constraint.In order to improve computing precision and reduce network complexity,we propose a knowledge-based partially connected quantum neural network(PCQNN).The results show that exact solutions can be obtained by the improved algorithm and that the depth of the quantum circuit can be reduced simultaneously. 展开更多
关键词 quantum computing quantum algorithm unit commitment quantum neural network noisy intermediate-scale quantum era
暂未订购 下载PDF
Mediating effect of organizational commitment on nurses’ethical climate and ethical behavior 认领 引用
6
作者 Zahra Marzieh Hassanian Arezoo Shayan +2 位作者 Maryam Seyedtabib Leili Tapak Zahra Karami 《Frontiers of Nursing》 2025年第4期547-554,共8页
Objective:To study the relationship,the mediating effect of organizational commitment on nurses’ethical climate and ethical behavior.Methods:Structural Equation Modeling(SEM)was employed to perform path analysis in t... Objective:To study the relationship,the mediating effect of organizational commitment on nurses’ethical climate and ethical behavior.Methods:Structural Equation Modeling(SEM)was employed to perform path analysis in this exploratory study.The participants consisted of 280 Iranian nurses who were studied through proportional random sampling.The research tool was consisted of(1)the Ethical Climate Questionnaire by Cullen and Victor,which examines the ethical standards of selfishness,philanthropy,and ethical principles,as well as the reference sources of ethical arguments,including individual,regional,and global ones;(2)Allen and Mayer’s questionnaire,which measures organizational commitment in 3 areas:emotional commitment,continuous commitment,and normative commitment;and(3)Peterson’s Ethical Behavior Questionnaire,which combines nine items to form interconnected ethical behaviors and is based on a 5-point Likert scale.The data were analyzed using AMOS and SPSS v.23 software.Results:The correlation coefficient between the two variables,ethical climate and ethical behavior,showed a significant relationship(r=0.10,p=0.085).The organizational commitment showed a significant relationship between some dimensions and the total ethical climate.The ethical climate affects the organizational commitment(beta=3.261)and behavior(beta=0.121).Organizational commitment does not show any significant relationship with ethical behavior.The ethical climate affects the organizational commitment and the ethical behavior.Conclusions:Nursing managers and nursing staff should consider the ethical climate that affects the organizational commitment and nursing ethical behavior. 展开更多
关键词 ethical behaviors ethical climate mediating effect nurse organizational commitment
暂未订购 下载PDF
Polynomial Commitment in a Verkle Tree Based on a Non-Positional Polynomial Notation 认领 引用
7
作者 Kunbolat T.Algazy Kairat S.Sakan +1 位作者 Saule E.Nyssanbayeva Ardabek Khompysh 《Computers, Materials & Continua》 SCIE EI 2025年第7期1581-1595,共15页
This paper examines the application of the Verkle tree—an efficient data structure that leverages commitments and a novel proof technique in cryptographic solutions.Unlike traditional Merkle trees,the Verkle tree sig... This paper examines the application of the Verkle tree—an efficient data structure that leverages commitments and a novel proof technique in cryptographic solutions.Unlike traditional Merkle trees,the Verkle tree significantly reduces signature size by utilizing polynomial and vector commitments.Compact proofs also accelerate the verification process,reducing computational overhead,which makes Verkle trees particularly useful.The study proposes a new approach based on a non-positional polynomial notation(NPN)employing the Chinese Remainder Theorem(CRT).CRT enables efficient data representation and verification by decomposing data into smaller,indepen-dent components,simplifying computations,reducing overhead,and enhancing scalability.This technique facilitates parallel data processing,which is especially advantageous in cryptographic applications such as commitment and proof construction in Verkle trees,as well as in systems with constrained computational resources.Theoretical foundations of the approach,its advantages,and practical implementation aspects are explored,including resistance to potential attacks,application domains,and a comparative analysis with existing methods based on well-known parameters and characteristics.An analysis of potential attacks and vulnerabilities,including greatest common divisor(GCD)attacks,approximate multiple attacks(LLL lattice-based),brute-force search for irreducible polynomials,and the estimation of their total number,indicates that no vulnerabilities have been identified in the proposed method thus far.Furthermore,the study demonstrates that integrating CRT with Verkle trees ensures high scalability,making this approach promising for blockchain systems and other distributed systems requiring compact and efficient proofs. 展开更多
关键词 Verkle tree Verkle tree commitment and proof non-positional polynomial notation(NPN) Chinese remainder theorem
暂未订购 下载PDF
Workplace spirituality and mindfulness in professional female dancers:The mediating role of mental well-being in organizational Commitment 认领 引用
8
作者 Kang-won Bae Joon-ho Kim Ja-young Sul 《Journal of Psychology in Africa》 2025年第4期451-461,共11页
This study examined the relationships among workplace spirituality,mindfulness,mental well-being,and organizational commitment in professional female dancers.A total of 424 dancers from the United States participated ... This study examined the relationships among workplace spirituality,mindfulness,mental well-being,and organizational commitment in professional female dancers.A total of 424 dancers from the United States participated in the survey.Structural equation modeling indicated that workplace spirituality was positively associated with both mental well-being and organizational commitment,whereas mindfulness was significantly related only to organizational commitment.Mental well-being was a significant predictor of organizational commitment and mediated the relationship between workplace spirituality and organizational commitment,but not between mindfulness and commitment.These results suggest that workplace spirituality functions as a psychological resource that enhances emotional health and strengthens organizational engagement.Thesefindings are consistent with self-determination theory,highlighting the role of value congruence and intrinsic purpose in sustaining motivation in high-performance contexts.Moreover,the studyfindings underscore the importance of fostering spiritually supportive work environments to promote psychological well-being and long-term organizational commitment. 展开更多
关键词 workplace spirituality mindfulness mental well-being organizational commitment professional dancers
暂未订购 下载PDF
Acceptance and commitment therapy applied to early psychosis:Therapeutic foundations and a narrative systematic review 认领 引用
9
作者 Josep Pena-Garijo Tábata Baeza-Mor José Martinez-Raga 《World Journal of Psychiatry》 SCIE 2025年第8期384-403,共20页
BACKGROUND Acceptance and commitment therapy(ACT)is a third-generation therapy that appears to be a promising psychological intervention for psychotic disorders.While several systematic reviews and meta-analyses that ... BACKGROUND Acceptance and commitment therapy(ACT)is a third-generation therapy that appears to be a promising psychological intervention for psychotic disorders.While several systematic reviews and meta-analyses that address the efficacy of ACT for psychosis have been conducted,no systematic review has specifically focused on the application of ACT to the early stages of psychosis.AIM To review the state of the art regarding the feasibility and efficacy of treating early psychosis(EP)with ACT-based interventions.METHODS First,we describe the foundations of the ACT model to provide the background required to contextualize the main objective of this review.Second,we searched the PubMed and PsycINFO databases for studies published up to January 2025 and identified eight studies that met our selection criteria.The systematic review was conducted in accordance with the PRISMA guidelines and the critical appraisal checklist provided by the Joanna Briggs Institute for randomized controlled trials(RCTs).RESULTS All studies were published after 2019.Among the reviewed studies,five were RCTs with a total combined sample of 399 nonoverlapping participants.The methodological quality was moderate for RCTs.The results showed that ACTbased treatments are feasible and improve psychotic symptoms,medication adherence,and global functioning in patients with EP.Furthermore,preliminary evidence exists for the benefits of group-based and online-delivered programs and those that combine face-to-face therapy with novel real-time digital interventions,such as“ecological momentary intervention”,to apply therapeutic con cepts to real life.CONCLUSION ACT-based treatments in the early stages of psychosis are feasible and improve symptoms,treatment adherence,and self-care skills.Although promising,these results are inconclusive.Further research is required. 展开更多
关键词 Acceptance and commitment therapy Acceptance-based therapy Early psychosis First-episode psychosis Schizophrenia Ecological momentary intervention Digital intervention Systematic review
暂未订购 下载PDF
Acceptance and commitment therapy for enhancing mental health in military personnel:A comprehensive review and meta-analysis 认领 引用
10
作者 Jun-Qiao Wang Xin-Zhe Wang Wen-Xiao Wang 《World Journal of Psychiatry》 SCIE 2025年第3期319-336,共18页
BACKGROUND Military personnel frequently face unique psychological challenges due to highstress environments,which increase the risk of mental health issues like anxiety and depression.Acceptance and commitment therap... BACKGROUND Military personnel frequently face unique psychological challenges due to highstress environments,which increase the risk of mental health issues like anxiety and depression.Acceptance and commitment therapy(ACT)has shown potential in addressing these issues by enhancing psychological flexibility and resilience.AIM To systematically evaluate the effectiveness of ACT in improving the mental health of military personnel.Through a scoping review and meta-analysis,we quantitatively assess the impact of ACT on psychological outcomes,guiding future research and clinical practice.METHODS Relevant literature was searched systematically from database inception to June 30,2023,across multiple databases,including PubMed,Web of Science,Cochrane Library,and Embase.The Joanna Briggs Institute's(JBI)scoping review guidelines were used as the methodological framework.Meta-analysis was performed using a random-effects model,and publication bias was assessed through Egger's regression test and Begg's funnel plot.RESULTS Twenty-six studies were included,highlighting the application of ACT in addressing PTSD,chronic pain,anxiety,and depression among military personnel.The meta-analysis of eight studies demonstrated a significant positive effect of ACT on mental health,with a pooled mean difference of-4.99(95%CI:-6.53 to-3.45).Despite high heterogeneity(I2=63%),sensitivity analyses confirmed the robustness of the findings.CONCLUSION This study underscores the potential of ACT as an effective intervention for improving the mental health of military personnel.Future research should focus on large-scale,multi-center RCTs to further validate these findings,particularly within diverse military populations. 展开更多
关键词 Acceptance and commitment therapy Military health Meta-Analysis Psychological therapy Post traumatic stress disorder management
暂未订购 下载PDF
The Impact of Exercise Commitment on Flourishing via Psychological Capital(PsyCap):A Second-Order PLS-SEM Approach 认领 引用
11
作者 Jinwoong Choi Young-lae Choi Kyuhyun Choi 《International Journal of Mental Health Promotion》 2025年第10期1515-1532,共18页
Objectives:For the younger generation(i.e.,Millennials and Generation Z),running is not only about physical health,but also about building psychological resources and multidimensional well-being,reflecting their uniqu... Objectives:For the younger generation(i.e.,Millennials and Generation Z),running is not only about physical health,but also about building psychological resources and multidimensional well-being,reflecting their unique culture and lifestyle.This study aims to investigate the structural relationships among exercise commitment,psychological capital(PsyCap),and flourishing in younger adults in South Korea by integrating Social Cognitive Theory(SCT)and Broaden-and-Build Theory(BBT)using a second-order partial least squares structural equation modeling(PLS-SEM).Methods:A total of 166 participants were recruited through convenience sampling via online survey.They were young South Korean adults(born 1983–2005)who run at least once a week and were recruited through two universities and running communities.The survey included validated scales measuring exercise commitment(cognitive and behavioral),PsyCap(hope,efficacy,resilience,and optimism),and flourishing(emotional,psychological,and social well-being).Data were analyzed using PLS-SEM with 5000 bootstrap resamples in SmartPLS 4.1.1.2.Subsequently,mea-surement and structural models were assessed through confirmatory composite analysis(CCA),and common method variance(CMV)was checked using Harman’s single-factor test.Results:Exercise commitment significantly predicted PsyCap(β=0.171,p<0.05)and PsyCap significantly predicted flourishing(β=0.444,p<0.001).Mediation analysis confirmed that PsyCap fully mediated the relationship between exercise commitment and flourishing(β=0.071,p<0.05).Although the indirect effect may appear numerically small,it translated to a 7.1%increase in flourishing scores—a practically meaningful effect in social science contexts where even modest changes yield real-world impact.The findings empirically support the integration of two frameworks,highlighting both motivational(SCT)and affective(BBT)pathways through which exercise fosters multidimensional well-being.Conclusions:Theoretically,this study advances understanding of how cognitive and behavioral commitment contribute to the development of psychological resources that collectively drive flourishing.Practically,the results suggest that running programs targeting younger adults should focus on fostering PsyCap—via goal setting,social support,and digital engagement—to maximize well-being outcomes.Moreover,the findings have the potential to inform mental health promotion strategies beyond the Korean context.This study has several limitations,including a skewed sample resulting from convenience sampling,the lack of comparative analysis across different age cohorts,and the use of second-order constructs that may obscure dimension-specific effects.Future research should address these limitations by employing stratified sampling,adopting comparative study designs,and conducting model comparisons between first-and second-order constructs to elucidate both overarching and dimension-specific pathways. 展开更多
关键词 Physical activity impacts exercise commitment psychological capital flourishing
暂未订购 下载PDF
Twenty Years of Commitment Forge Success,Setting a Benchmark for Safe Development--Celebrating the 20th Anniversary of LTI-Free Safety Operations by Crew 8622 of the BGP Oman Project Department,International Division 认领 引用
12
作者 Yang Tao Dong Gong 《China Oil & Gas》 CAS 2025年第3期75-78,共4页
Strategic initiative:Entering Oman for a new strategy In 2004,the International Department of CNPC’s BGP took a crucial step in the Middle East market by successfully securing a seismic exploration project for the na... Strategic initiative:Entering Oman for a new strategy In 2004,the International Department of CNPC’s BGP took a crucial step in the Middle East market by successfully securing a seismic exploration project for the national oil company of Oman,Petroleum Development Oman(PDO). 展开更多
关键词 anniversary seismic exploration development commitment safety market entry strategy seismic exploration project
暂未订购 下载PDF
A study on the current situation and factors influencing the professional commitment of private kindergarten teachers 认领 引用 被引量:1
13
作者 Rui Li Wen-He Sun 《教育技术与创新》 2023年第2期57-68,共12页
This study investigated the professional commitment of kindergarten teachers in a private kindergarten located in Jinan,Shandong Province,China.The research employed a questionnaire and utilized correlation analysis t... This study investigated the professional commitment of kindergarten teachers in a private kindergarten located in Jinan,Shandong Province,China.The research employed a questionnaire and utilized correlation analysis to examine the factors influencing the professional commitment of private kindergarten teachers.The findings revealed that the overall level of career commitment among private kindergarten teachers was moderately low.Among the three dimensions of professional commitment,namely,continuance commitment,affective commitment,and normative commitment,the affective commitment dimension exhibited a relatively high level,whereas the continuance commitment and normative commitment dimensions showed relatively low levels.Significant differences in professional commitment levels were observed based on teacher age,education level,age of children,salary,and class size.However,no significant differences were found based on teacher specialty,position,and teaching experience. 展开更多
关键词 private kindergarten teachers professional commitment continuing commitment affective commitment normative commitment
暂未订购 下载PDF
The mediating role of organizational commitment between calling and work engagement of nurses: A cross-sectional study 认领 引用 被引量:13
14
作者 Yudi Cao Jingying Liu +2 位作者 Kejia Liu Mengyu Yang Yanhui Liu 《International Journal of Nursing Sciences》 CSCD 2019年第3期309-314,共6页
Objective: Nurse shortage is a critical problem for global healthcare services.It impacts the quality of clinical care.Work engagement is the core competence of hospitals,which indicates employee's positive attitu... Objective: Nurse shortage is a critical problem for global healthcare services.It impacts the quality of clinical care.Work engagement is the core competence of hospitals,which indicates employee's positive attitude toward organization and work.This study aimed to explore the relationships among calling,organizational commitment,and work engagement.Methods: A cross-sectional study was designed,and 320 nurses from tertiary hospitals in China completed the questionnaires that included demographic information,calling scale,employee engagement scale,and organizational commitment scale.Pearson correlation was performed to test the correlations among calling,organizational commitment,and work engagement.Stepwise regression analyses were performed to explore the mediating role of organizational commitment.The bootstrap method was employed to confirm the mediating effect.Results: Nurses' work engagement score was at the medium degree,whereas calling and organizational commitment were in the medium to high level.The results revealed that calling,organizational commitment,work engagement,and each dimension were positively correlated with one another (r=0.145-0.922,P < 0.01).The organizational commitment plays a partially mediating effect between calling and work engagement (β =0.603 to 0.333,P < 0.01).Conclusions: The mediation effect of organizational commitment was verified,which provided a comprehensive understanding of how calling impacted work engagement.Moreover,administrators should not only promote interventions to increase work engagement but also pay attention to calling and organizational commitment so as to improve their work engagement.Taken together,increased level of work engagement is required in the current nursing field. 展开更多
关键词 Nurses Calling Employee engagement Organizational commitment
暂未订购 下载PDF
Organizational commitment and turnover intention among rural nurses in the Philippines: Implications for nursing management 认领 引用 被引量:3
15
作者 Leodoro J.Labrague Denise M.McEnroe-Petitte +3 位作者 Konstantinos Tsaras Jonas P.Cruz Paolo C.Colet Donna S.Gloe 《International Journal of Nursing Sciences》 2018年第4期403-408,共6页
Objectives:The unrelenting migration trend of Filipino nurses to other countries has threatened the quality of patient care services in the country.This study explored the extent of nurses'organizational commitmen... Objectives:The unrelenting migration trend of Filipino nurses to other countries has threatened the quality of patient care services in the country.This study explored the extent of nurses'organizational commitment and turnover intention in the Philippines.Furthermore,predictors of nurses'organizational commitment and turnover intention were identified.Methods:A cross-sectional research design was adopted for this study.Two hundred nurses from nine rural hospitals in the Central Philippines were asked to participate in the study and 166 nurses responded(an 83%response rate).Two standardized instruments were used:the Organizational Commitment Questionnaire and the Six-item Turnover Intention Inventory Scale.Results:Findings revealed that Philippine nurses were moderately committed(3.13±0.24)to and were undecided(2.42±0.67)whether or not to leave their organization.Nurses'age(P=0.006),gender,(t=-2.25,P=0.026),education(t=2.38,P<0.001),rank(t=4.38,P<0.001),and work experience(t=2.18,P=0.031)correlated significantly with organizational commitment,while nurses'age(P=0.028)and education(t=1.99,P=0.048)correlated significantly with turnover intention.An inverse relationship was identified between the organizational commitment and turnover intention(r=-0.22,P=0.005).Conclusion:The findings of this study highlight the need for formulation and implementation of interventions to promote life-long commitment in nurses and to reduce turnover rates. 展开更多
关键词 Hospitals Rural Nurses Organizational commitment Philippines Turnover intention
暂未订购 下载PDF
An immune-tabu hybrid algorithm for thermal unit commitment of electric power systems 认领 引用 被引量:1
16
作者 Wei LI Hao-yu PENG +2 位作者 Wei-hang ZHU De-ren SHENG Jian-hong CHEN 《Journal of Zhejiang University-SCIENCE A》 SCIE EI CAS 2009年第6期877-889,共13页
This paper presents a new method based on an immune-tabu hybrid algorithm to solve the thermal unit commitment (TUC) problem in power plant optimization. The mathematical model of the TUC problem is established by a... This paper presents a new method based on an immune-tabu hybrid algorithm to solve the thermal unit commitment (TUC) problem in power plant optimization. The mathematical model of the TUC problem is established by analyzing the generating units in modem power plants. A novel immune-tabu hybrid algorithm is proposed to solve this complex problem. In the algorithm, the objective function of the TUC problem is considered as an antigen and the solutions are considered as antibodies, which are determined by the affinity computation. The code length of an antibody is shortened by encoding the continuous operating time, and the optimum searching speed is improved. Each feasible individual in the immune algorithm (IA) is used as the initial solution of the tabu search (TS) algorithm after certain generations of IA iteration. As examples, the proposed method has been applied to several thermal unit systems for a period of 24 h. The computation results demonstrate the good global optimum searching performance of the proposed immune-tabu hybrid algorithm. The presented algorithm can also be used to solve other optimization problems in fields such as the chemical industry and the power industry. 展开更多
关键词 Immune algorithm (IA) Tabu search (TS) Optimization method Unit commitment
暂未订购 下载PDF
The Braid-Based Bit Commitment Protocol 认领 引用 被引量:1
17
作者 王励成 曹珍富 +1 位作者 曹锋 钱海峰 《Journal of Shanghai Jiaotong university(Science)》 EI 2006年第2期200-204,共5页
With recent advances of quantum computanon, new threats key cryptosystems. In order to build more secure bit commitment schemes, this paper gave a survey of the new coming braid-based cryptography and then brought for... With recent advances of quantum computanon, new threats key cryptosystems. In order to build more secure bit commitment schemes, this paper gave a survey of the new coming braid-based cryptography and then brought forward the first braid-based bit commitment protocol. The security proof manifests that the proposed protocol is computationally binding and information-theoretically hiding. Furthermore, the proposed protocol is also invulnerable to currently known quantum attacks. 展开更多
关键词 bit commitment braid-based cryptography quantum attacks
暂未订购 下载PDF
Mediating effect of undergraduate nursing students’ professional commitment on positive psychological capital and learning burnout 认领 引用 被引量:1
18
作者 Huanze LI Hongfang CHEN +3 位作者 Miaoqing ZHUANG Yue LIU Jiayi WANG Luyu ZHANG 《Journal of Integrative Nursing》 2021年第1期25-29,共5页
Objective:The objective of this study is to explore the mediating role of professional commitment of undergraduate nursing students between positive psychological capital(PsyCap)and learning burnout.Materials and Meth... Objective:The objective of this study is to explore the mediating role of professional commitment of undergraduate nursing students between positive psychological capital(PsyCap)and learning burnout.Materials and Methods:A cluster sampling method was used to survey 442 students of a bachelor’s degree in freshman to the junior in a medical college in Shaanxi Province.Results:Professional commitment was positively related to positive PsyCap(=0.487,P<0.01),while positive PsyCap and professional commitment were negatively related to learning burnout(r=−0.456,r=−0.411,P all<0.01).There are certain mediating effects of professional commitment in the relationship between positive PsyCap and learning burnout.The mediating effect value of professional commitment is−0.065,accounting for 16.08%of the total effect.Conclusion:Nursing educators in medical colleges and universities should focus on developing and training the positive PsyCap of undergraduate nursing students,thereby enhancing and stabilizing their professional commitment level and reducing the risk of learning burnout. 展开更多
关键词 Learning burnout mediating effect professional commitment psychological capital undergraduate nursing student
暂未订购 下载PDF
Optimal Intelligence Planning of Wind Power Plants and Power System Storage Devices in Power Station Unit Commitment Based 认领 引用 被引量:1
19
作者 Yuchen Hao Dawei Su Zhen Lei 《Energy Engineering》 EI 2022年第5期2081-2104,共24页
Renewable energy sources(RES)such as wind turbines(WT)and solar cells have attracted the attention of power system operators and users alike,thanks to their lack of environmental pollution,independence of fossil fuels... Renewable energy sources(RES)such as wind turbines(WT)and solar cells have attracted the attention of power system operators and users alike,thanks to their lack of environmental pollution,independence of fossil fuels,and meager marginal costs.With the introduction of RES,challenges have faced the unit commitment(UC)problem as a traditional power system optimization problem aiming to minimize total costs by optimally determining units’inputs and outputs,and specifying the optimal generation of each unit.The output power of RES such as WT and solar cells depends on natural factors such as wind speed and solar irradiation that are riddled with uncertainty.As a result,the UC problem in the presence of RES faces uncertainties.The grid consumed load is not always equal to and is randomly different from the predicted values,which also contributes to uncertainty in solving the aforementioned problem.The current study proposes a novel two-stage optimization model with load and wind farm power generation uncertainties for the security-constrained UC to overcome this problem.The new model is adopted to solve the wind-generated power uncertainty,and energy storage systems(ESSs)are included in the problem for further management.The problem is written as an uncertain optimization model which are the stochastic nature with security-constrains which included undispatchable power resources and storage units.To solve the UC programming model,a hybrid honey bee mating and bacterial foraging algorithm is employed to reduce problem complexity and achieve optimal results. 展开更多
关键词 Unit commitment security-constrained programming wind farms uncertainty honey bee mating algorithm bacterial foraging algorithm
暂未订购 下载PDF
Effects of Internet-Based Acceptance and Commitment Therapy (IACT) on Adolescents: A Systematic Review and Meta-Analysis 认领 引用 被引量:1
20
作者 Jing Wang Shuanghu Fang 《International Journal of Mental Health Promotion》 2023年第4期433-448,共16页
Objectives:This study reviewed published randomized controlled trials(RCTs)and evaluated the efficacy of internet-based acceptance and commitment therapy(IACT)on adolescent mental health.Methods:Searches were conducte... Objectives:This study reviewed published randomized controlled trials(RCTs)and evaluated the efficacy of internet-based acceptance and commitment therapy(IACT)on adolescent mental health.Methods:Searches were conducted in PubMed,ProQuest,APA(PsycNET/PsycINFO),and Web of Science from inception to Jan-uary 2022 to identify RCTs evaluating the effects of IACT on adolescents.The included studies were assessed for quality and risk of bias.This study was performed using the standard mean difference and associated 95%confidence interval of effective measures.Review Manager 5.4 software was adopted to calculate the effect size.Results:Compared to adolescents in control groups,those in the IACT groups showed some improvement in the efficacy of depression symptoms(SMD=−0.24,95%CI=[−0.44,−0.05],p=0.01)and had a small but sig-nificant effect on reducing experiential avoidance(SMD=−0.24,95%CI=[−0.46,−0.01],p=0.04).However,the effect size on anxiety did not reach the threshold(SMD=−0.18,95%CI=[−0.27,−0.09],p<0.0001).In addition,there were no significant differences in stress and well-being compared to those of the control group.Compared with universal adolescents,IACT was found to have a more significant therapeutic effect on targeted adolescents.Conclusions:IACT is effective in adolescent mental health interventions,but its clinical reliability and significant efficacy are limited,and more rigorous RCTs are needed in future studies. 展开更多
关键词 Internet-based acceptance and commitment therapy adolescents mental health meta-analysis
暂未订购 下载PDF
上一页 1 2 31 下一页 到第
在线咨询 使用帮助 返回顶部 意见反馈