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The main purpose of this paper is to present a comprehensive upscale theory of the thermo-mechanical coupling particle simulation for three-dimensional (3D) large-scale non-isothermal problems, so that a small 3D length-scale particle model can exactly reproduce the same mechanical and thermal results with that of a large 3D length-scale one.

The objective is achieved by following the scaling methodology proposed by Feng and Owen (2014).

After four basic physical quantities and their similarity-ratios are chosen, the derived quantities and its similarity-ratios can be derived from its dimensions. As the proposed comprehensive 3D upscale theory contains five similarity criteria, it reveals the intrinsic relationship between the particle-simulation solution obtained from a small 3D length-scale (e.g. a laboratory length-scale) model and that obtained from a large 3D length-scale (e.g. a geological length-scale) one. The scale invariance of the 3D interaction law in the thermo-mechanical coupled particle model is examined. The proposed 3D upscale theory is tested through two typical examples. Finally, a practical application example of 3D transient heat flow in a solid with constant heat flux is given to illustrate the performance of the proposed 3D upscale theory in the thermo-mechanical coupling particle simulation of 3D large-scale non-isothermal problems. Both the benchmark tests and application example are provided to demonstrate the correctness and usefulness of the proposed 3D upscale theory for simulating 3D non-isothermal problems using the particle simulation method.

The paper provides some important theoretical guidance to modeling 3D large-scale non-isothermal problems at both the engineering length-scale (i.e. the meter-scale) and the geological length-scale (i.e. the kilometer-scale) using the particle simulation method directly.

The purpose of this paper is to present an upscale theory of the thermal-mechanical coupling particle simulation for non-isothermal problems in two-dimensional quasi-static system, under which a small length-scale particle model can exactly reproduce the same mechanical and thermal results with that of a large length-scale one.

The objective is achieved by extending the upscale theory of particle simulation for two-dimensional quasi-static problems from an isothermal system to a non-isothermal one.

Five similarity criteria, namely geometric, material (mechanical and thermal) properties, gravity acceleration, (mechanical and thermal) time steps, thermal initial and boundary conditions (Dirichlet/Neumann boundary conditions), under which a small-length-scale particle model can exactly reproduce both the mechanical and thermal behavior with that of a large length-scale model for non-isothermal problems in a two-dimensional quasi-static system are proposed. Furthermore, to test the proposed upscale theory, two typical examples subjected to different thermal boundary conditions are simulated using two particle models of different length scale.

The paper provides some important theoretical guidances to modeling thermal-mechanical coupled problems at both the engineering length scale (i.e. the meter scale) and the geological length scale (i.e. the kilometer scale) using the particle simulation method directly. The related simulation results from two typical examples of significantly different length scales (i.e. a meter scale and a kilometer scale) have demonstrated the usefulness and correctness of the proposed upscale theory for simulating non-isothermal problems in two-dimensional quasi-static system.

Employee voice is crucial for organizations to identify problems and make timely adjustments. However, promoting voice in organizations is challenging. This study aims to investigate how social media use (SMU) in the workplace affects employee voice by examining its intrinsic mechanisms and boundary conditions. Specifically, this study examines the mediating roles of social identifications and the moderating effects of job-social media fit on the relationship between SMU and social identifications.

This study conducted a survey of 348 employees in China.

First, SMU affects voice through social identifications. Second, distinct identifications have different effects on voice, such that organizational identification positively affects employee voice, while relational identification positively affects promotive voice and negatively affects prohibitive voice. Third, when social media is highly suitable for the job, the positive effect of work-related SMU on organizational identification is strengthened, while the positive effect of social-related SMU on organizational identification is weakened.

The results indicate that different identifications have distinct impacts on voice. Additionally, this study reveals a double-edged sword effect of SMU on voice through different social identifications. Further, job-social media fit moderates the relationship between SMU and social identifications. These findings have important implications for organizations adopting social media.

This study examines the link between ethical leadership and innovative work behavior. Also, drawing on the substitute for leadership theory, this study investigates the role of a follower's proactive personality in the relationship between ethical leadership and innovative work behavior (IWB). Similarly, this study further explores the role of psychological safety in this relationship.

The data for this study were collected from software development companies based in Islamabad, Pakistan. A total of 240 employees and their immediate supervisors were asked to participate in this study. Processes Macro and Amos were used to assess study hypotheses.

Using data from software companies in Pakistan, this study found that ethical leadership can be effective to enhance IWB in followers whose proactive personality is low, while this effect is limited in high proactive individuals. Furthermore, psychological safety mediates the main effect of ethical leadership on IWB as well as the interactive effect between ethical leadership and follower's proactive personality on IWB.

This study is among the first to investigate the moderating role of employees' proactive personality in the relationship between ethical leadership and followers' IWB. Secondly, draws on the substitute for leadership perspective, this study explains that how the role of ethical leadership can be less effective for high proactive individuals or how individual characteristics can substitute leadership behavior. Thirdly, this study deepens our understanding of the mechanisms linking ethical leadership to IWB by exploring the role of psychological safety as a mediator. Finally, our research is based on data collected from Pakistan might also add some new insights to the existing west-dominated literature.

The purpose of this paper is to examine the nature of relationship between ethical leadership and employee voice behavior. Study of employee voice behavior is important, because leaders in organizations make numerous decisions based on employees’ work-related inputs which do influence the decision quality and team performance.

Survey data were collected through structured questionnaire from Indian organizations. Data were analysed through statistical techniques such as confirmatory factor analysis and structural equation modeling.

The findings showed that ethical leadership did impact the employee voice in a positive and significant but moderate manner. The study also found no significant differences in ethical leadership and voice behavior across demographic variables such as gender, age, educational qualification and job level in the Indian context.

The study is conducted using single cross-sectional research design, and for better causal inferences of the relationship between various variables, future research studies may be conducted with longitudinal research design, multiple data sources and variety of industries with large sample size.

With erosion of ethical values and corporate scandals, managers need to develop and display ethical leadership as employees emulate their leaders’ ethical behavior because ethical leadership, or its perception, relates positively and significantly to employee voice behavior.

There is less study to understand ethical leadership and its influence on voice behavior in developing countries, especially in India. Ethical leadership behavior encourages employees to voice their work-related constructive opinions and concerns for improved decision-making and reduced unethical practices. Also, there is scarcity of research that explores the impact of demographic variables and this study is an effort to understand this gap.

In recent years, a great number of top conferences and workshops on artificial intelligence (AI) were held in China, showing Chinese AI plays an important role in the world. Meanwhile, Chinese government announced an ambitious scheme, “New Generation Artificial Intelligence Development Plan,” for the country to become a world leader in AI technologies by 2030. The AI research in China has covered various aspects, ranging from chips to algorithms. This chapter attempts to give an overview of the recent advances of AI research and development in China, as well as some perspectives on the future development of AI in China.

This study aims to explore the relationship between transformational leadership and employee voice behavior and the role of relational identification and work engagement as mediators in the same.

This study uses structural equation modeling to analyze the data from a questionnaire survey of 251 Taiwanese hospitality industry employees.

The findings demonstrate that transformational leadership has significant relationships with relational identification, work engagement and employee voice behavior and that relational identification and work engagement sequentially mediate between transformational leadership and employee voice behavior.

The results of this study provide insights into the intervening mechanisms linking leaders’ behavior with employees’ voices, while also highlighting the potential importance of relational identification in organizations, especially concerning the enhancement of employees’ work engagement and voice.

The findings reveal the mechanisms by which supervisors’ transformational leadership encourages employees to voice their suggestions, providing empirical evidence of the sequential mediation of relational identification and work engagement. The results help clarify the psychological process by which leaders influence their followers.

This chapter presents the outcome of a study that examined the phenomena ‘Is Tourism Regulation Catalyst for Abuja Federal Capital Territory (FCT) Nigeria, Hotels Business Performance Innovation?’ Previous studies on this subject area have been largely done around tourism and its impact on hotel business performance and the relationship between tourism regulation and hotel business performance from mostly western perspectives. Hence, this study aims to investigate the direct effect of tourism regulations on hotel business performance in Nigeria. Quantitative survey questionnaires were used to collect data from 176 participants comprising general managers and departmental heads in 22 key Abuja FCT Nigerian hotels. Balanced Scorecard (BSC) developed by Norton and Kaplan was adopted as the study’s theoretical framework. Data collected were analysed using the simple linear regression technique and Statistical Package for the Social Sciences (SPSS) statistical analysis software tool.

The result of the analysis shows that tourism regulation has a significant and positive correlation with Abuja hotel business performances based on the BSC four dimensions of financial, customer, processes and learning and growth. The unique city characteristics of Abuja FCT were also identified as an issue for consideration in future tourism regulation innovation by the regulatory authorities. This study contributes to business performance measurement literature from the Abuja FCT hotels, Nigerian perspective, and sets an agenda for the Nigerian tourism regulators, the Nigeria Tourism Development Corporation (NTDC) charged with diversifying the Nigerian economy revenue through tourism performance innovation. Also, a policy study into city characteristics classification as a way of innovating tourism regulations and hotels business performance is suggested.

This study investigates how the spiritual leadership style of a manager affects employees' intention to stay with the organization, taking into account the post-pandemic workplace and the expected economic downturn. Furthermore, this study aims to assess how employee voice behavior mediates the linkages between the spiritual leadership style and intention to stay and how this mediation is influenced by perceived interpersonal justice. Grounded on the self-determination theory of intrinsic motivation and social-exchange theory, this study seeks to advance the theoretical understanding of spiritual leadership and its associated outcomes.

The descriptive study included 379 frontline employees in India's tourism and hospitality sector. Responses were collected from selected employees using the snowball sampling method and met strict inclusion criteria. Self-reporting questionnaires were used to collect data from the participants. Confirmatory factor analysis was conducted using IBM AMOS 21.0, and hypothesis testing and drawing inferences were carried out using path analytic procedures with PROCESS Macro 3.0.

Consistent with the hypotheses presented in this paper, this study demonstrated a statistically significant indirect impact of spiritual leadership on employees' intention to stay with the organization, through indirect effects of employee voice behavior. Additionally, the conditional indirect effects of spiritual leadership on employees' intention to stay, mediated by voice behavior, were contingent upon the level of interpersonal justice as a moderator. Specifically, these effects were significant when the levels of interpersonal justice were low but not when they were high.

This study makes significant strides in developing and testing a pioneering model that examines the association between spiritual leadership and employees’ intention to stay with the organization. This research explores explicitly how this relationship is influenced by perceived interpersonal justice and employee voice behavior. The results of this study emphasize the criticality of cultivating a culture that inspires constructive criticism and elucidates its potential advantages, effectively bridging a gap in the existing scholarly literature.

This study aims to investigate the effects of ethical leadership on employee’s bullying and voice behavior, considering poor working conditions, organizational identification and workload as mediating variables.

Questionnaire survey design was used to elicit responses of 564 nurses from hospitals located in various cities of Pakistan.

Analysis through structural equation modeling proved that ethical leadership has a positive and significant impact on both organizational identification and voice behavior, but a negative and significant impact on workload, poor working conditions and bullying at the workplace. Furthermore, organizational identification, poor working conditions and workload proved to be partial mediators.

The study adds value to the limited literature on ethical leadership, bullying and voice behavior in nursing. Additionally, organizational identification, workload and poor working conditions have not previously been examined as mediators.