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The main purpose of this study is to analyze the heat transfer phenomena in a dynamically bulging enclosure filled with Cu-water nanofluid. This study examines the convective heat transfer process induced by a bulging area considered a heat source, with the enclosure's side walls having a low temperature and top and bottom walls being treated as adiabatic. Various factors, such as the Rayleigh number (Ra), nanoparticle volume fraction, Darcy effects, Hartmann number (Ha) and effects of magnetic inclination, are analyzed for their impact on the flow behavior and temperature distribution.

The finite element method (FEM) is employed for simulating variations in flow and temperature after validating the results. Solving the non-linear partial differential equations while incorporating the modified Darcy number (10⁻³ ≤ Da ≤ 10⁻¹), Ra (10³ ≤ Ra ≤ 10⁵) and Ha (0 ≤ Ha ≤ 100) as the dimensionless operational parameters.

This study demonstrates that in enclosures with dynamically positioned bulges filled with Cu-water nanofluid, heat transfer is significantly influenced by the bulge location and nanoparticle volume fraction, which alter flow and heat patterns. The varying impact of magnetic fields on heat transfer depends on the Rayleigh and Has.

The geometry configurations employed in this research have broad applications in various engineering disciplines, including heat exchangers, energy storage, biomedical systems and food processing.

This research provides insights into how different shapes of the heated bulging area impact the hydromagnetic convection of Cu-water nanofluid flow in a dynamically bulging-shaped porous system, encompassing curved surfaces and various multi-physical conditions.

Leadership’s dark side has been on the rise, negatively affecting organizations. The phenomenon, however, is not as simple as it seems. Based on social exchange and conservation of resource theories, current research aims to explore the impact of psychological entitlement on despotic leadership, ultimately leading to instigated workplace incivility. Moreover, emotional exhaustion was tested as a mediator and Islamic work ethics as a moderator.

This study aims to examine the effect of dark side of leadership and for this, the survey approach was used to collect data from 402 bankers from Pakistan’s twin cities (Islamabad and Rawalpindi).

The results showed that psychological entitlement leads to despotism and despotic leaders become a reason for instigated workplace incivility. Results also showed that emotional exhaustion mediated, and Islamic work ethics moderated the relationship.

Bankers have a demanding job which is further exacerbated by despotic leaders feeling psychologically entitled and instigating employees toward uncivil behaviors as they experience emotional exhaustion. Despotic leaders need to be dealt with to reduce instigated incivility and Islamic work ethics can also aid in improving employee behavior.

Literature available on both antecedents and effects of the leadership’s dark side is limited, and this study strives to contribute by extending the literature available on psychological entitlement, despotic leadership and instigated workplace incivility relationships.

The purpose of this study is to critically understand and find out the socio-political role of the Acehnese ulamas (Muslim scholars) in solving and coping with social issues faced by contemporary Acehnese society.

This study was conducted in the province of Nanggroe Aceh Darussalam, especially in the districts of Aceh Utara, Pidie, Aceh Besar, Aceh Selatan and Aceh Timur. The locations were chosen based on the consideration of the objective conditions that many ulamas were dwelling and could easily be found in these areas. Besides, the locations are historically believed as the origins of the Acehnese that are so diverse. In addition, a large number of social problems frequently arose within those regions. The subjects of this research study were a number of community determined by purposive sampling technique. The instruments used for the data collection in this research were observation, in-depth interview and library study; and interpretative understanding was also used to analyze the data.

The existence of the Acehnese ulamas represents the government’s recognition to word the traditional institutional in Aceh. However, some people think that institutions are used by the government to exploit ulama as the mediator between the government and the society. For the Acehnese ulamas, the institution could be used to consolidate their power for the benefit of the people.

The various theories discussed are considered the framework and guidance for this study, especially in terms of data collection and data analysis. The new theories and relevant references will also possibly be added to the following study.

Sustainable machining is a global consensus and the necessity to cope up the serious environmental threats. Minimum quantity lubrication (MQL) and nanofluids-based MQL(NFMQL) are state-of-the-art sustainable lubrication modes. The purpose of this study is to investigate the effect of process parameters, such as feed rate, depth of cut and cutting fluid flow rate, on temperature and surface roughness of the manufactured pieces during face milling of the AISI D2 steel.

A statistical technique called response surface methodology with Box–Behnken Design was used to design experimental runs, and empirical modeling was presented. Analysis of variance was carried out to evaluate the model’s accuracy and the validation of the applied technique.

A comprehensive analysis revealed the superiority of implementing NFMQL in comparison to MQL within the levels of process parameters. The comparison has shown a significant reduction of temperature under NFMQL at the tool-workpiece interface from 16.2 to 34.5 per cent and surface roughness from 11.3 to 12 per cent.

This research is useful for practitioners to predict the responses in workshop and select appropriate cutting parameters. Moreover, this research will be helpful to reduce the resource which will ultimately save energy consumption and cost.

To cope with the industrial challenges and tribological issues associated with the milling of AISI D2 steel, experiments were conducted in a distinct machining mode with innovative cooling/lubrication. Until now, few studies have addressed the key lubrication effects of Al₂O₃-based nanofluid on the machinability of D2 steel under NFMQL lubrication condition.

This study aims to find out how corporate social responsibility (CSR) initiatives are perceived by pharmacists and how it influences employees’ organizational commitment and organizational citizenship behavior (OCB) and role of perceived supervisor support in the study.

Pharmacists of different hierarchical levels from five multinational pharmaceutical industries in Pakistan were selected as study samples. Data were collected from 136 pharmacists working in Punjab Region. PLS-SEM was used to test the hypotheses.

The results from this study found that CSR was a predictor of affective organizational commitment (AOC) and OCB. AOC fully mediates the relationship between CSR and OCB. While perceived supervisory support did not moderate the relationship between AOC and OCB. Pharmaceutical firms can promote commitment toward organization and OCBs by initiating CSR activities.

This research is one of the innovative studies that empirically examine the predicting role of CSR and moderating role of perceived supervisory support on employees’ attitude and behaviors in the pharmaceutical companies’ context. Moreover, this research will also help the management by adopting CSR activities as core element in shaping employees attitudes and behaviors.

It is a significant study shifting the focus of research into organizational behavior context and further influences employee’s attitudes and behavior because of perceived CSR in the pharmacy industry.

This paper is supposed to provide a critical review of current research progress on thermal management in grinding of superalloys, and future directions and challenges. By understanding the current progress and identifying the developing directions, thermal management can be achieved in the grinding of superalloys to significantly improve the grinding quality and efficiency.

The relevant literature is collected from Web of Science, Scopus, CNKI, Google scholar, etc. A total of 185 literature is analyzed, and the findings in the literature are systematically summarized. In this case, the current development and future trends of thermal management in grinding of superalloys can be concluded.

The recent developments in grinding superalloys, demands, challenges and solutions are analyzed. The theoretical basis of thermal management in grinding, the grinding heat partition analysis, is also summarized. The novel methods and technologies for thermal management are developed and reviewed, i.e. new grinding technologies and parameter optimization, super abrasive grinding wheel technologies, improved lubrication, highly efficient coolant delivery and enhanced heat transfer by passive thermal devices. Finally, the future trends and challenges are identified.

Superalloys have excellent physical and mechanical properties, e.g. high thermal stability, and good high-temperature strength. The superalloys have been broadly applied in the aerospace, energy and automobile industries. Grinding is one of the most important precision machining technologies for superalloy parts. Owing to the mechanical and physical properties of superalloys, during grinding processes, forces are large and a massive heat is generated. Consequently, the improvement of grinding quality and efficiency is limited. It is important to conduct thermal management in the grinding of superalloys to decrease grinding forces and heat generation. The grinding heat is also dissipated in time by enhanced heat transfer methods. Therefore, it is necessary and valuable to holistically review the current situation of thermal management in grinding of superalloys and also provide the development trends and challenges.

This study aims to investigate individual-related consequences of workplace bullying among the health-care section. Specifically, this study examined the mediating role of burnout between workplace bullying and nurses’ well-being. Moreover, passive avoidant leadership is examined as a conditional variable between workplace bullying and burnout.

This study collected data from 314 nurses working in various hospitals through a questionnaire-based survey using Google Form in two waves.

Structural equation modeling confirmed the negative effect of workplace bullying on nurses’ well-being, whereas burnout mediates this relationship. In addition, passive avoidant leadership was identified as a conditional variable that strengthens the positive association between workplace bullying and burnout.

Although data for the study were collected in two waves, still cross-sectional design limits causality.

This study suggests management to focus on developing and implementing counter-bullying rules to avoid the adverse consequences of workplace bullying (e.g. capital loss, recruitment costs, burnout, well-being, etc.). In addition, leaders/supervisors must be trained to fulfill their responsibilities to reduce negative consequences.

Studies on workplace bullying in high-power distance cultures are scant. Therefore, drawing upon conservation of resource theory, to the best of the authors’ knowledge, this is the first study that has investigated the moderating role of passive avoidant leadership on the association between workplace bullying and burnout.

This study aims to explore the determinants of environmental knowledge sharing behaviour among accounting educators through the lens of an extended theory of planned behaviour (TPB).

A total of 95 accounting educators responded to a questionnaire survey. The data comprising information on attitude, subjective norm, perceived behavioural control, possession of environmental knowledge and locus of control, as exogenous latent variables and intention to share and environmental knowledge sharing behaviour as endogenous latent variables, were analysed using the SmartPLS modelling technique. Besides the survey, interviews were conducted for triangulation purpose.

Except for subjective norm, all hypotheses are supported. The findings from the interviews reveal that environmental knowledge sharing activities have put educators in a peculiar position in terms of sharing environmental knowledge, as carrying out environmental activities has not been taken seriously and also seen as not the norm among the faculty members.

This study focuses on accounting educators from five Malaysian public universities and deepens the understanding of their behaviour in sharing their environmental knowledge.

This study provides findings that can be useful for higher education institutions to strategize themselves in delivering environmental sustainability awareness in campus, which may enhance their efforts towards achieving sustainable development.

This study provides findings that there is a need to inculcate environmental knowledge sharing among educators. Such knowledge sharing may generate good environmental norms, which may result in better environmental awareness.

This paper contributes to the literature by exploring the main determinants of accounting educators’ environmental knowledge sharing behaviour and extending the TPB by considering two additional variables.

The purpose of the proposed research methodology is to control the trajectory tracking of EDRM and also to cancel out the effect of no-smooth nonlinearities, which affect the system performance badly.

Robust adaptive neural network (RANN)-based backstepping control design methodology is presented in this paper. The proposed design methodology improves the trajectory tracking and running mean error.

The running mean error results show that the convergence of the proposed RANN-based backstepping technique is very fast as compare to the conventional PD control and due to this proposed control technique, the EDRM follows its desired trajectory perfectly.

The EDRM trajectory tracking performance increases which leads to a better working position of EDRM.

The originality of this research article is 93 per cent.