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Recent advancements in technology have led to the exploration of solar-based thermal radiation and nanotechnology in the field of fluid dynamics. Solar energy is captured through sunlight absorption, acting as the primary source of heat. Various solar technologies, such as solar water heating and photovoltaic cells, rely on solar energy for heat generation. This study focuses on investigating heat transfer mechanisms by utilizing a hybrid nanofluid within a parabolic trough solar collector (PTSC) to advance research in solar ship technology. The model incorporates multiple effects that are detailed in the formulation.

The mathematical model is transformed using suitable similarity transformations into a system of higher-order nonlinear differential equations. The model was solved by implementing a numerical procedure based on the Wavelets and Chebyshev wavelet method for simulating the outcome.

The velocity profile is reduced by Deborah's number and velocity slip parameter. The Ag-EG nanoparticles mixture demonstrates less smooth fluid flow compared to the significantly smoother fluid flow of the Ag-Fe3O4/EG hybrid nanofluids (HNFs). Additionally, the Ag-Ethylene Glycol nanofluids (NFs) exhibit higher radiative performance compared to the Ag-Fe3O4/Ethylene Glycol hybrid nanofluids (HNFs).

Additionally, the Oldroyd-B hybrid nanofluid demonstrates improved thermal conductivity compared to traditional fluids, making it suitable for use in cooling systems and energy applications in the maritime industry.

The originality of the study lies in the exploration of the thermal transport enhancement in sun-powered energy ships through the incorporation of silver-magnetite hybrid nanoparticles within the heat transfer fluid circulating in parabolic trough solar collectors. This particular aspect has not been thoroughly researched previously. The findings have been validated and provide a highly positive comparison with the research papers.

The purpose of this study is to develop a new whistleblowing scale considering the conventional and Islamic perspectives in combating corruption. Whistleblowing has received great attention because it helps the corruption prevention process by revealing bad practices, improving transparency and ensuring accountability. However, not many scholars have focused on the concept of whistleblowing in the Islamic context.

The study uses a theoretical inquiry design, delving into the literature to thoroughly examine whistleblowing likelihood, Kohlberg’s theory and Maqasid Shariah. Through qualitative content analysis, relevant concepts are scrutinized and synthesized. The integration of Kohlberg’s theory and Maqasid Shariah aims to offer a comprehensive framework for comprehending whistleblowing likelihood, integrating perspectives from both Western and Islamic traditions.

This study has conceptualized the integration of the six stages of Kohlberg and Maqasid Shariah to understand whistleblowing likelihood. The study offers a scale to explain whistleblowing likelihood based on the two theories.

The correlation between Kohlberg and Maqasid Shariah reveals a nuanced relationship between individual moral evolution and Islamic ethical imperatives, in the context of whistleblowing likelihood. As individuals progress through Kohlberg’s stages, aligning with Maqasid Shariah’s emphasis on societal well-being, their inclination to blow the whistle evolves from early considerations of fear and conformity to a commitment to universal ethical principles and justice.

The new scale integrating Kohlberg and Maqasid Shariah aids ethical climates in organizations by assessing employees’ moral development and promoting ethical leadership through tailored training. Aligned with Islamic values, the scale becomes a tool for fostering ethical behavior and organizational culture, emphasizing justice and commitment to higher ethical objectives. Managers must delicately balance justice and community harmony when implementing whistleblowing initiatives to ensure a positive impact on both ethical principles and organizational cohesion.

By integrating the six stages of moral development proposed by Kohlberg, the new scale plays a role in promoting transparency and accountability for sustainable development. Furthermore, its alignment with Maqasid Shariah contributes to addressing corruption and advocating for social justice, making the scale a catalyst for societal well-being that respects cultural and religious values. Ultimately, the scale supports a socially responsible approach, reinforcing ethical behavior and contributing to the broader global agenda for sustainable and just societies.

The new scale integrating Kohlberg and Maqasid Shariah offers an innovative and interdisciplinary approach to assessing whistleblowing likelihood. This fusion provides a nuanced understanding of individuals’ ethical reasoning, aligning universal moral principles with Islamic ethics. The scale not only broadens the conceptual framework for evaluating ethical decision-making but also respects cultural diversity, making it inclusive and applicable across diverse global contexts.

This paper aims to investigate the direct relationship between green human resource management (GHRM) practices and environmental performance (EP) in Palestinian universities, as well as the mediating role of management support (MS) and green organisational culture (GOC) in this relationship.

A quantitative approach was used in this study. The data were collected from 351 employees working in Palestinian universities through a questionnaire and analysed using partial least squares structural equation modelling.

The study finds that the implementation of GHRM practices positively enhances EP. The results further demonstrate that GHRM practices influence both MS and GOC. Furthermore, this study reveals that both MS and GOC play a significant role in mediating the relationship between GHRM and EP.

This study adds to the existing literature by providing a conceptual framework and empirical evidence of the correlation between GHRM, GOC, MS and EP, specifically in university settings. Educational institutions can use this study’s findings to foster a green culture and gain endorsement from top-level management. This approach promotes the adoption of eco-friendly practices and the development of environmental strategies that can influence EP.

This study contributes to the field by enhancing the understanding of the ability–motivation–opportunity theory in the context of Palestinian universities. Specifically, this study investigates how GHRM practices and GOC establish core competence for sustainable EP. Furthermore, the findings reveal a positive influence of GHRM practices on both GOC and MS. Finally, this study’s empirical evidence highlights the significance of GHRM practices in fostering GOC, MS and, ultimately, improving EP within universities.