Yong Li, Yuxuan Chen^*, Jiahui He, Guowei He, Chenxi Dai, Jingjing Tong, Wenting Lei

Energy Engineering, Vol.123, No.1, 2026, DOI:10.32604/ee.2025.069257 - 27 December 2025

Abstract Ensuring reliable power supply in urban distribution networks is a complex and critical task. To address the increased demand during extreme scenarios, this paper proposes an optimal dispatch strategy that considers the coordination with virtual power plants (VPPs). The proposed strategy improves system flexibility and responsiveness by optimizing the power adjustment of flexible resources. In the proposed strategy, the Gaussian Process Regression (GPR) is firstly employed to determine the adjustable range of aggregated power within the VPP, facilitating an assessment of its potential contribution to power supply support. Then, an optimal dispatch model based on More > Graphic Abstract

Wenjie Qiu¹, Jiyuan Wang², Zheng Zhang^3,*

Journal of Psychology in Africa, Vol.35, No.6, pp. 815-823, 2025, DOI:10.32604/jpa.2025.070151 - 30 December 2025

Abstract This study examined emotional exhaustion and family support in the relationship between leader workaholism and employee work fatigue. The participants were 408 employed adults (74% female, age range 25 to 27 years) across five industries: sales (31.65%), finance (25.32%), education (20.25%), public administration (12.66%), and technology (10.13%), from 79 work teams in China. Survey data were collected at three time points over a three-month period. The results from structural equation modeling indicated that leader workaholism was associated with higher employee work fatigue. Emotional exhaustion mediated the relationship, contributing to higher levels of employee fatigue. Furthermore, More >

Xin Guo^*

Journal of Psychology in Africa, Vol.35, No.6, pp. 825-832, 2025, DOI:10.32604/jpa.2025.069822 - 30 December 2025

Abstract Core Self-Evaluations are linked to career success, yet the person-environment factor mechanisms underlying this relationship remain unclear. This meta-analysis (N = 135,809) synthesized the evidence on whether person task performance and LMX environment mediate the effects of CSE on career success both objective (salary) and subjective (job satisfaction) indicators. This study employed meta-analytic structural equation modeling (MASEM) to test direct and indirect pathways. Results integrating tournament theory and LMX theory show that CSE positively relates to task performance and LMX, both of which in turn relate to salary and job satisfaction. A significant sequential mediation More >

Yungui Guo^*, Xuan Fan

Journal of Psychology in Africa, Vol.35, No.6, pp. 791-796, 2025, DOI:10.32604/jpa.2025.067238 - 30 December 2025

Abstract This study examined the moderating role of employees’ learning orientation on the relationship between leaders’ artificial intelligence symbolization behavior (LAISB), employees’ attitude towards digital transformation (ATDT), and enterprise digital transformation. The sample consisted of 261 employees from five enterprises in China (female = 34.5%; primary industry includes the internet and transportation; mean age = 42.51 years, SD = 8.63 years; bachelor’s degree or above = 72.8%). The results of structural equation modeling and simple slope test indicated that LAISB predicted higher enterprise digital transformation, with ATDT partial mediation. Furthermore, employees’ learning orientation weakened the relationship More >

Muflih Alhazmi¹, Waqar Ul Hassan², Saba Shaheen³, Mohammed M. A. Almazah⁴, Azmat Ullah Khan Niazi^3,*, Nafisa A. Albasheir⁵, Ameni Gargouri⁶, Naveed Iqbal⁷

CMES-Computer Modeling in Engineering & Sciences, Vol.145, No.2, pp. 1903-1940, 2025, DOI:10.32604/cmes.2025.072973 - 26 November 2025

Abstract This paper proposes a model-based control framework for vehicle platooning systems with second-order nonlinear dynamics operating over switching signed networks, time-varying delays, and deception attacks. The study includes two configurations: a leaderless structure using Finite-Time Non-Singular Terminal Bipartite Consensus (FNTBC) and Fixed-Time Bipartite Consensus (FXTBC), and a leader—follower structure ensuring structural balance and robustness against deceptive signals. In the leaderless model, a bipartite controller based on impulsive control theory, gauge transformation, and Markovian switching Lyapunov functions ensures mean-square stability and coordination under deception attacks and communication delays. The FNTBC achieves finite-time convergence depending on initial More >

Qinglin Wang^1,2, Hang Zhang², Junzhe Zhao², Wenfan Chao², Minghui Wang^2,*

Journal of Psychology in Africa, Vol.35, No.5, pp. 557-563, 2025, DOI:10.32604/jpa.2025.068969 - 24 October 2025

Abstract This study investigated the role of work role engagement and interpersonal perspectives mediation in the relationship between school principal moral leadership and teachers’ voice behavior. A sample comprising 315 middle school teachers from a central province in China participated in the research (females = 73.3%). These teachers completed surveys on moral leadership, work engagement, trust in superiors, and voice behavior. The results of dual mediation modeling indicated evidence of an indirect effect of moral leadership on teachers’ voice behavior through work engagement. The results also indicated evidence of mediating effect of trust between moral leadership More >

Xueqin Zhang, Zerui Wang, Fei Xu^*

Journal of Psychology in Africa, Vol.35, No.5, pp. 609-618, 2025, DOI:10.32604/jpa.2025.066587 - 24 October 2025

Abstract This research sought to examine whether employees’ views of distributive justice within the organization moderate the influence of exploitative leadership on the depletion of their self-control resources, and whether self-control depletion serves as a mechanism linking exploitative leadership to employees’ taking charge behavior. Data were obtained from 299 employees in China (51.8% male; average age = 27.67 years, SD = 3.83) using a two-wave survey design with a two-week interval. Hierarchical regression analyses revealed that distributive justice did not significantly buffer the impact of exploitative leadership on self-control depletion. Furthermore, exploitative leadership was found to More >

Asad Khan¹, Fathia Moh. Al Samman^2,*, Waqar Ul Hassan³, Mohammed M. A. Almazah⁴, A. Y. Al-Rezami⁵, Azmat Ullah Khan Niazi^3,*, Adnan Manzor⁶

CMES-Computer Modeling in Engineering & Sciences, Vol.144, No.2, pp. 1971-1999, 2025, DOI:10.32604/cmes.2025.068240 - 31 August 2025

Abstract This research paper tackles the complexities of achieving global fuzzy consensus in leader-follower systems in robotic systems, focusing on robust control systems against an advanced signal attack that integrates sensor and actuator disturbances within the dynamics of follower robots. Each follower robot has unknown dynamics and control inputs, which expose it to the risks of both sensor and actuator attacks. The leader robot, described by a second-order, time-varying nonlinear model, transmits its position, velocity, and acceleration information to follower robots through a wireless connection. To handle the complex setup and communication among robots in the… More > Graphic Abstract

Zhiying Sun¹, Guolong Zhao^2,3, Feng Hu^1,*

Journal of Psychology in Africa, Vol.35, No.4, pp. 513-521, 2025, DOI:10.32604/jpa.2025.070126 - 17 August 2025

Abstract This study examined the relationship between transformational leadership and employee bootleg innovation through the mediating role of creative self-efficacy and the moderating role of leader-member exchange (LMX). Data were collected from 279 employees and 56 matched supervisors within a large Chinese digital transformation group. A moderated mediation model analysis found that transformational leadership predicts higher employee bootleg innovation. Creative self-efficacy mediated the positive relationship between transformational leadership and employee bootleg. Additionally, leader-member exchange significantly moderated the relationship between transformational leadership and creative self-efficacy, for a further enhancement of bootleg innovation. These findings underscore the importance More >

Longmei Wang¹, Jiawen Liu¹, Lei Lu^2,*

Journal of Psychology in Africa, Vol.35, No.3, pp. 309-317, 2025, DOI:10.32604/jpa.2025.068580 - 31 July 2025

Abstract This study examined the relationship between inclusive leadership and subordinates’ upward voice, focusing on the mediating role of psychological safety and the moderating role of collectivism. Data were collected from 284 subordinates and supervisors across 11 organizations in China in three cross-lagged waves. Structural equation modeling results indicated that inclusive leadership was associated with subordinates’ upward voice via psychological safety. Moreover, collectivism strengthens the association between inclusive leadership and upward voice via psychological safety, leading to a higher upward voice. These findings highlight the importance of inclusive leadership in fostering an environment that promotes open More >