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Research on Islamic entrepreneurship (IE) is growing but with difficulty. After reviewing six IE models, several problematic inconsistencies were identified, which can be categorized into three: sporadic objectives of IE, diverging core components and inconsistent levels of analysis. This study aims to articulate a synthesized IE model.

An Islamic critical realist synthesis is used by combining six IE models and situating them within an Islamic system of governance. Specifically, the Islamic governance conceptual matrix is used to offer an objective template.

A synthesized model of IE within an Islamic system of governance comprises the following: the objectives of IE are not to be confined to only financial sustainability, but to achieve all five Maqās.id of the Sharī’ah (i.e. preservation and promotion of faith, life, intellect, posterity and wealth); models of IE should cover the individual, group, organizational, societal, state and international levels for comprehensiveness; tawhīd is crucial to distinguish between IE and conventional entrepreneurship; halal IE activities can be further categorized into obligatory, recommended, permissible and reprehensible; Islamic values are to be differentiated from cultural values; and both Islamic and cultural values shape IE and vice versa.

Limited number of models of IE were included in this synthesis. Although the resulting synthesized model is extensive, additional models of IE can be built to extend or even challenge it.

A novel model of IE within an Islamic system of governance is presented.

The entropy and thermal behavior analyses of non-Newtonian nanofluid double-diffusive natural convection inside complex domains may captivate a bunch of scholars’ attention because of the potential utilizations that they possess in modern industries, for example, heat exchangers, solar energy collectors and cooling of electronic apparatuses. This study aims to investigate the second law and thermal behavior of non-Newtonian double-diffusive natural convection (DDNC) of Al₂O₃-H₂O nanofluid within a C-shaped cavity emplacing two hot baffles and impacted by a magnetic field.

For the governing equations of the complicated and practical system with all considered parameters to be solved via a formidable numerical approach, the finite element method acts as an approach to achieving the desired solution. This method allows us to gain a detailed solution to the studied geometry.

This investigation has been executed for the considered parameters of range, such as power-law index, baffle length, Lewis number, buoyancy ratio, Hartmann number and Rayleigh number. The main results reveal that isothermal and concentration lines are significantly more distorted, indicating intensified concentration and temperature distributions because of the growth of baffle length (L). Nu_ave decreases by 8.4% and 0.8% while it enhances by 49.86% and 33.87%, respectively, because of growth in the L from 0.1 to 0.2 and 0.2 to 0.3.

Such a comprehensive study on the second law and thermal behavior of DDNC of Al₂O₃-H₂O nanofluid within a C-shaped cavity emplacing two hot baffles and impacted by magnetic field has not yet been carried out.

The use of waste polyethylene terephthalate (PET) plastics derived from shredded bottles in concrete is not formalized yet, especially in reinforced members such as beams and columns. The disposal of plastic wastes in concrete is a viable alternative to manage those wastes while minimizing the environmental impacts associated to recycling, carbon dioxide emissions and energy consumption.

This paper evaluates the suitability of 2D deterministic and stochastic finite element (FE) modeling to predict the shear strength behavior of reinforced concrete (RC) beams without stirrups. Different concrete mixtures prepared with 1.5%–4.5% PET additions, by volume, are investigated.

Test results showed that the deterministic and stochastic FE approaches are accurate to assess the maximum load of RC beams at failure and corresponding midspan deflection. However, the crack patterns observed experimentally during the different stages of loading can only be reproduced using the stochastic FE approach. This later method accounts for the concrete heterogeneity due to PET additions, allowing a statistical simulation of the effect of mechanical properties (i.e. compressive strength, tensile strength and Young’s modulus) on the output FE parameters.

Data presented in this paper can be of interest to civil and structural engineers, aiming to predict the failure mechanisms of RC beams containing plastic wastes, while minimizing the experimental time and resources needed to estimate the variability effect of concrete properties on the performance of such structures.

Building information modeling (BIM) is a growing technology and methodology for project design in the construction industry. However, when the project design team designs with BIM in a free-form manner (without a qualified instructor), it is not clear how behavior or trust might develop among project team members, nor if there are variables that might influence the improvement of such collaboration.

A sample of 92 responses was obtained from managers of project design firms in the architecture, engineering and construction (AEC) sector. The questionnaire data were analyzed using partial least square structural equation modeling (PLS-SEM).

This paper provides an explanation, from a happiness management perspective, to reflect on the importance of establishing policies to enhance effective communication between project team members in BIM design, as it improves trust between team members and their collaborators, developing the overall satisfaction of all the agents involved in the project.

The researchers suggest that there is a gap in the literature on how effective communication influences the implementation of BIM methodology.