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Telephone response system is the frontline of hospital operations. The purpose of this paper is to analyze a representative telephone response system of Veterans Affairs (VA) hospitals, address the existing inefficiency issues such as long call waiting time, and improve system resilience to changes.

Resource sharing schemes are proposed to improve the system performance in answering calls related to appointment booking and medication renewal. Discrete event simulation is adopted to model the current system and the resource sharing schemes.

The resource sharing schemes dramatically improve system performance reflected by the decrease of call waiting time and queue, as well as the extreme high utilization of agents in a key unit. Compared with the less desired alternative of hiring additional employees to mitigate the performance issues, the resource sharing schemes perform at par or even better. Sharing more resource during the peak hours can further balance the agent workload.

The resource sharing schemes could alleviate staffing shortage, long waiting time, and high-abandonment rate in the bottle-beck unit of the system, and lead to better utilization of scarce resources on the hospital floor. The concept reflects localized centralization efforts in traditionally highly decentralized telephone operations in hospital systems.

This research provides a structured approach to analyze the operations of a VA telephone response system. The developed simulation model is validated, and this provides a valuable tool for management to analyze the complicated telephone operations of the telephone systems of other VA and non-VA hospitals. Resource sharing constitutes a cost-effective solution for improving system performance and resilience.

Drawing on the resource gain development (RGD) perspective, this study is aimed to examine how servant leadership as an environmental resource and general self-esteem as a personal resource influence employees' family performance through work-to-family facilitation (WFF) and explore the moderating effects of gender and Chinese traditionality on the relationship between servant leadership and WFF.

Two-wave data were collected from 369 employees in China. The structural equation model and path analysis were used to analyze the data.

The results confirm that WFF mediates the effects of servant leadership and employees' general self-esteem on employees' family performance. Gender and Chinese traditionality moderate the relationship between servant leadership and WFF.

This study contributes to existing research by revealing how specific environmental resources (servant leadership) and personal resources (general self-esteem) impact employee family performance through WFF; it also identifies gender and Chinese traditionality as demand characteristics which moderate the effect of environmental resources on WFF.

This paper aims to examine the consequences for innovative work behavior (IWB) of top-down knowledge hiding – that is, supervisors’ knowledge hiding from supervisees (SKHS). Drawing on social learning theory, the authors test the three-way moderated-mediation model in which the direct effect of SKHS on IWB is first mediated by self-efficacy and then further moderated by supervisor and supervisee nationality (locals versus foreigners).

The authors collected multi-sourced data from 446 matched supervisor-supervisee pairs working in a diverse range of organizations operating in the Kingdom of Saudi Arabia. After initial data screening, confirmatory factor analysis was conducted to test for the factorial validity of the used measures with AMOS. The hypothesized relationships were tested in regression analysis with SPSS.

Results showed that SKHS had both direct and mediation effects, via the self-efficacy mediator, on supervisee IWB. The mediation effect was further moderated by supervisor and supervisee nationality (local versus foreigners), which highlighted that the effect was stronger for supervisor–supervisee pairs that were local-local or foreigner-foreigner than for pairs that were local-foreigner or foreigner-local.

This study contributes to both knowledge hiding and IWB literature and discusses the useful theoretical and practical implications of the findings.

The purpose of this paper is to examine the relationship between ethical leadership and employee cross-team knowledge sharing via the differentiating mediating effects of cognitive and affective trust in colleagues.

Multi-source and multi-wave data were collected from 214 dyads of employees and their supervisors. Linear regression was employed to examine the hypotheses.

Ethical leadership positively predicts employee cross-team knowledge sharing. Affective trust in colleagues mediates the relationship between ethical leadership and employee cross-team knowledge sharing, whereas cognitive trust in colleagues does not. The hypothesis – the mediating effect of affective trust in colleagues between ethical leadership and cross-team knowledge sharing is greater than that of cognitive trust in colleagues – is not supported.

This study extends understanding of the influence of ethical leadership on cross-team knowledge sharing. It further differentiates cognitive and affective trust in colleagues between ethical leadership and cross-team knowledge sharing. These findings are valuable for improving the research of leadership practices and knowledge sharing.

The purpose of this paper is to investigate the influence of an employee’s personal creative identity on their innovation behaviour in knowledge-intensive information technology (IT) service provider firms. It further investigates the mediating role of an employee’s creative process engagement (CPE) and the moderating effects of the organizational creative climate on creative identity-innovative behaviour (IB) relationships.

This study follows a quantitative method. Using a multi-item survey instrument, a total of 316 questionnaires were collected from the employees of IT service provider firms in Chittagong, Bangladesh. The collected data were analysed using structural equation modelling, factor analysis and path analysis to test the hypotheses and to assess the moderating and mediating effects of the variables.

The results revealed the significant influence of an employee’s creative personal identity (CPI) on their IB. The mediation analysis revealed that CPE mediates the association between a CPI and IB. The study also found a significant moderating effect of a creative organizational climate between a CPI and CPE.

Based on the premise of the interactionist approach of creativity and role identity theory, this study contributes to the creativity and innovation literature by providing empirical support for the relationship between a personal creative identity, organizational creative culture, CPE and IB in IT service organizations.

This study adopts a distinct model comprising four different variables to investigate an employee’s IB from a multi-level perspective, i.e., a creative identity and CPE at the individual level and a creative climate and IB at the organizational level. This integrated model using predictors from multiple levels supports the theoretical assumption that IB results from the interaction of individual and organizational level factors.

The purpose of this paper is to prove the self‐repairing Cu film of Cu‐DDP additive in base lubricating oil.

Cu nanoparticles coated with dialkydithiophosphate (Coded as Cu‐DDP) were synthesized in situ by redox method. The size and structure of Cu‐DDP were characterized using transmission electronic microscopy (TEM) and electronic diffraction (ED) analysis. The self‐repairing performance of Cu‐DDP as additive in base lubricating oil was evaluated by MRH‐3 stock‐on‐ring testing machine. Scanning electronic microscopy (SEM), UMT‐2 tribometer, X‐ray photoelectron spectroscopy (XPS), and energy‐dispersive spectrum (EDS) were used to study the self‐repairing Cu film on the stock.

The test results showed that the modified Cu‐DDP additive in base lubricating oil exhibited excellent anti‐wear and friction‐reducing properties, as well as good self‐repairing performance.

The thickness of the self‐repairing Cu film was unknown, and the relationship between thickness of the Cu film and load, time, rotation velocity was still necessary to investigate.

The Cu‐DDP additive was involved P and S elements, therefore, it is still promising to seek environment friendly additive without P and S elements.

For the first time, MRH‐3 stock‐on‐ring testing machine, Scanning electronic microscopy (SEM), UMT‐2 tribometer, X‐ray photoelectron spectroscopy (XPS), and energy‐dispersive spectrum (EDS) were widely used to study the self‐repairing Cu film on the stock.

The purpose of this paper is to investigate the relationship between servant leadership and life satisfaction through the mediating role of workplace positive affect (WPA), and the moderating roles of collectivistic orientation and general self-efficacy.

Using a sample of 304 employees in a two-wave survey, the hypotheses were demonstrated with hierarchical regression analyses.

The results revealed that servant leadership was positively related to employee life satisfaction, and WPA served as a mediator between them. Moreover, collectivistic orientation and general self-efficacy moderated the relationship between servant leadership and WPA, and the indirect effect of servant leadership on life satisfaction via WPA.

The time-lagged research design of this study may limit the ability to draw causal conclusions. Moreover, as this research was conducted in a Chinese context, the question of the generalizability of our findings calls for more attention.

Leaders are encouraged to adopt the servant leadership style to facilitate employee life satisfaction and organizations should select and recruit managers with servant leadership qualities. Furthermore, because employees’ collectivistic orientation and general self-efficacy moderate the effects of servant leadership on followers’ outcomes, managers need to take individual differences into consideration when they implement managerial strategy.

This research contributed to a burgeoning stream of servant leadership literature by investigating the functions of servant leadership in promoting life satisfaction, and exploring the affective mechanism linking servant leadership and life satisfaction as well as the boundary conditions of collectivistic orientation and general self-efficacy.

The purpose of this study is to investigate the effects of nanoadditive lubricants on the vibration and noise characteristics of helical gears compared with conventional lubricants. The experiment aims to analyze whether nanoadditive lubricants can effectively reduce gear vibration and noise under different speeds and loads. It also analyzes the sensitivity of the vibration reduction to load and speed changes. In addition, it compares the axial and radial vibration reduction effects. The goal is to explore the application of nanolubricants for vibration damping and noise reduction in gear transmissions. The results provide a basis for further research on nanolubricant effects under high-speed conditions.

Helical gears of 20CrMnTi were lubricated with conventional oil and nanoadditive oils. An open helical gearbox with spray lubrication was tested under different speeds (200–500 rpm) and loads (20–100 N·m). Gear noise was measured by a sound level meter. Axial and radial vibrations were detected using an M+P VibRunner system and fast Fourier transform analysis. Vibration spectrums under conventional and nanolubrication were compared. Gear tooth surfaces were observed after testing. The experiment aimed to analyze the noise and vibration reduction effects of nanoadditive lubricants on helical gears and the sensitivity to load and speed.

The key findings are that nanoadditive lubricants significantly reduce the axial and radial vibrations of helical gears under low-speed conditions compared with conventional lubricants, with a more pronounced effect on axial vibrations. The vibration reduction is more sensitive to rotational speed than load. At the same load and speed, nanolubrication reduces noise by 2%–5% versus conventional lubrication. Nanoparticles change the friction from sliding to rolling and compensate for meshing errors, leading to smoother vibrations. The nanolubricants alter the gear tooth surfaces and optimize the microtopography. The results provide a basis for exploring nanolubricant effects under high speeds.

The originality and value of this work is the experimental analysis of the effects of nanoadditive lubricants on the vibration and noise characteristics of hard tooth surface helical gears, which has rarely been studied before. The comparative results under different speeds and loads provide new insights into the vibration damping capabilities of nanolubricants in gear transmissions. The findings reveal the higher sensitivity to rotational speed versus load and the differences in axial and radial vibration reduction. The exploration of nanolubricant effects on gear tribological performance and surface interactions provides a valuable reference for further research, especially under higher speed conditions closer to real applications.

The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-07-2023-0220/

The purpose of this paper is to investigate the tribological properties of novel phosphorous-nitrogen (P-N) type additives in water.

The tribological properties of the novel P-N additives in water are compared with a commercial lubricant additive of the P-N type using a four-ball machine. The tribological mechanism was investigated by X-ray absorption near-edge structure (XANES) spectroscopy.

The experimental results indicate that the phosphoramidate derivatives possess good anti-wear and friction-reducing properties. The XANES analysis shows that the prepared compounds can form a protective film containing phosphate and/or polyphosphate that affects the tribological behavior.

The purpose of this paper is to investigate the tribological properties of the novel P-N type additives in water.

This study aims to examine the relationship between ethical leadership and project success directly and indirectly through psychological empowerment along with the moderating role of Islamic work ethic.

Using a time-lagged design, data were gathered from 202 employees working in project-based organizations of Pakistan. Confirmatory factor analysis confirmed the distinctiveness of variables used in the study.

Consistent with the cognitive evaluation theory, the findings supported the hypotheses other than the moderating role of Islamic work ethics between psychological empowerment and project success. The results confirmed that ethical leadership promotes project success directly and indirectly via psychological empowerment. Furthermore, theoretical and practical implications are also discussed highlighting the importance of ethical leadership for researchers and practitioners.

Literature is insufficient on the topic of ethical leadership in the project management domain with the effect of Islamic work ethics and psychological empowerment. Therefore, the current study explored unanswered research questions in the project management domain.