PurposeThe purpose of this paper is to extend the scant literature on the effect of abusive supervision on knowledge sharing by examining the roles of Islamic work ethic and learning goal orientation in moderating the effect.Design/methodology/approachThis paper utilizes a cross-lagged survey research design to collect data from 735 employees working in the services and manufacturing sectors of Pakistan.FindingsThe data analysis revealed that abusive supervision has a damaging effect on knowledge sharing in the workplace. However, employee learning goal orientation and the Islamic work ethic help in mitigating this detrimental effect.Research limitations/implicationsThe main theoretical implication is to advance knowledge on the boundary conditions that help in mitigating the undesirable effect of abusive supervision on sharing of knowledge in organizational settings.Practical implicationsThis paper provides practical insights into mitigating the damaging effects of abusive supervision, a prevalent issue in Asian societies, through the lenses of Islamic business ethics and learning goal orientation.Originality/valueThis is the first study that examines the boundary conditions placed by the Islamic work ethic and learning goal orientation around the relationship between abusive supervision and knowledge sharing in the context of Pakistan.

PurposeThis paper aims to investigate the influence of supervisor's ethical leadership style on subordinates' green or pro-environmental work behavior in the presence of green human resource management (GHRM) as a mediator and environmental knowledge as a moderator.Design/methodology/approachA questionnaire-based was distributed to 427 supervisor–subordinate dyads working in various Pakistani organizations. Structural equation modeling was used to determine the mechanisms and boundary conditions in the relationship between supervisor's ethical leadership style and subordinates' green behavior.FindingsStructural equation modeling supported a partial mediating role of GHRM in the influence of ethical leadership on green work behavior. Further, the findings revealed that employee's environmental knowledge can magnify the indirect impact of ethical leadership, via GHRM, on green behavior.Research limitations/implicationsCross-sectional survey data are typically associated with common method bias. To counter this bias, we collected data from dual sources, namely, supervisors and their subordinates. The research findings have implications in deepening the understanding of the impact of ethical leadership in improving environmental performance of the organization.Originality/valueThis is the first study that utilizes multi-sourced data to examine the mediating role of GHRM and the moderating role of environmental knowledge in the relationship between ethical leadership and green behavior at work.

Turbulence in fluids is a ubiquitous, fascinating, and complex natural phenomenon that is not yet fully understood. Unraveling turbulence in high density, high temperature plasmas is an even bigger challenge because of the importance of electromagnetic forces and the typically violent environments. Fascinating and novel behavior of hot dense matter has so far been only indirectly inferred because of the enormous difficulties of making observations on such matter. Here, we present direct evidence of turbulence in giant magnetic fields created in an overdense, hot plasma by relativistic intensity (10 18 W∕cm 2 ) femtosecond laser pulses. We have obtained magneto-optic polarigrams at femtosecond time intervals, simultaneously with micrometer spatial resolution. The spatial profiles of the magnetic field show randomness and their k spectra exhibit a power law along with certain well defined peaks at scales shorter than skin depth. Detailed two-dimensional particle-in-cell simulations delineate the underlying interaction between forward currents of relativistic energy "hot" electrons created by the laser pulse and "cold" return currents of thermal electrons induced in the target. Our results are not only fundamentally interesting but should also arouse interest on the role of magnetic turbulence induced resistivity in the context of fast ignition of laser fusion, and the possibility of experimentally simulating such structures with respect to the sun and other stellar environments.intense laser matter interaction | high energy density | astrophysical simulations | filamentary structures T he largest terrestrially available magnetic fields are generated when an intense laser pulse (intensity above 10 18 W∕cm 2 ) irradiates a solid target (1-3). The high energy density produced by laser irradiation generates relativistic electron jets, through the process of wave breaking. These relativistic electron jets carry the laser energy deep into the target ionizing and heating the colder portions behind the laser generated plasma and exciting return shielding currents. In the laboratory, such heating is extremely important for fast ignition of highly compressed targets in laser fusion (4, 5), simulation of intra planetary matter existing at ultrahigh pressure (6), ultrafast X-ray pulses (7), as well as proton and ion acceleration up to the MeV-GeV levels (3). It also serves as an excellent tool for modeling astrophysical systems (8-10). The transport of relativistic electrons through hot dense matter is very complex and is barely understood (11,12). Simulations have shown that relativistic electron transport in plasma media is fraught with severe plasma instabilities particularly the Weibel instability (13), which leads to spatial separation of forward and backward currents and eventually to the emergence of turbulent structures (14) and rapid energy dissipation. A major physical parameter that mirrors this complex physics is the giant magnetic field-as high as hundreds of megagauss-generated in this interaction. In earlier st...

Purpose The purpose of this paper is to advance knowledge on the implications of perceived corporate social responsibility (CSR) on employee levels of commitment and citizenship behaviour (OCB) by investigating a trust-based mediational process in the context of academia. Design/methodology/approach The research data are collected from a sample of 736 academics through a questionnaire based survey administered in different Pakistani universities. The nature of trust-based mechanism underlying the relationships between CSR, affective commitment and OCB is determined through structural equation modelling of the research data. Findings The findings suggest that the perceived CSR is an important predictor of academics’ attitudes and behaviour in universities. Whilst the findings implicate the mediating role of trust in the process by which perceived CSR influences academics’ commitment, trust does not appear to mediate the perceived CSR’s relationship with OCB. Research limitations/implications This study utilises single-sourced and cross-sectional data, which may have resulted in common method bias. Practical implications By furnishing evidence of the beneficial effects of perceived CSR on academics’ levels of trust, commitment and citizenship behaviour, this study provides a business case for universities’ involvement in CSR. The findings are particularly useful to academic administrators and managers who are interested in nurturing positive attitudes and behaviours amongst academic staff. Originality/value There is a paucity of research on CSR in the academic work settings of developing countries. This is the first study to examine the trust-based microfoundation of CSR in the context of academia in Pakistan.

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