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This study aims to investigate entropy generation through natural convection and examine heat transfer properties within a partially heated and cooled enclosure influenced by an angled magnetic field. The enclosure, subjected to consistent heat production or absorption, contains a porous medium saturated with a hybrid nanofluid blend of Cu-Fe₃O₄ and MoS₂-Fe₃O₄.

The temperature and velocity equations are converted to a dimensionless form using suitable non-dimensional quantities, adhering to the imposed constraints. To solve these transformed dimensionless equations, the finite-difference method, based on the MAC (Marker and Cell) technique, is used. Comprehensive numerical simulations address various control parameters, including nanoparticle volume fraction, Rayleigh number, heat source or sink, Darcy number, Hartmann number and slit position. The results are illustrated through streamlines, isotherms, average Nusselt numbers and entropy generation plots, offering a clear visualization of the impact of these parameters across different scenarios.

Results obtained show that the Cu-Fe₃O₄ hybrid nanofluid exhibits higher entropy generation than the MoS₂-Fe₃O₄ hybrid nanofluid when comparing them at a Rayleigh number of 10⁶ and a Darcy number of 10^–1. The MoS₂ hybrid nanofluid demonstrates a low permeability, as evidenced by an average Darcy number of 10^–3, in comparison to the Cu hybrid nanofluid. The isothermal contours for a Rayleigh number of 10⁴are positioned parallel to the vertical walls. Additionally, the quantity of each isotherm contour adjacent to the hot wall is being monitored. The Cu and MoS₂ nanoparticles exhibit the highest average entropy generation at a Rayleigh number of 10⁵ and a Darcy number of 10^–1, respectively. When a uniform heat sink is present, the temperature gradient in the central part of the cavity decreases. In contrast, the absence of a heat source or sink leads to a more intense temperature distribution within the cavity. This differs significantly from the scenario where a uniform heat sink regulates the temperature.

The originality of this study is to examine the generation of entropy in natural convection within a partially heated and cooled enclosure that contains hybrid nanofluids. Partially heated corners are essential for optimizing heat transfer in a wide range of industrial applications. This enhancement is achieved by increasing the surface area, which improves convective heat transfer. These diverse applications encompass fields such as chemical engineering, mechanical engineering, surface research, energy production and heat recovery processes. Researchers have been working on improving the precision of heated and cold corners using various methods, such as numerical, experimental and analytical approaches. These efforts aim to enhance the broad utility of these corners further.

This study adopts a qualitative approach to a critical media analysis of the multifaceted aspects of child marriage in the Yemeni context as an example of the broader Arab context. It seeks to provide a deeper understanding of the current situation, underlying causes and consequences of child marriage, as well as efforts to curb the practice.

This study utilizes a thematic analysis approach, examining various textual and multimodal sources on child marriage. A corpus of Arab media, including news and opinion articles, online discussions and public comments, was compiled and analyzed. Additionally, sentiment analysis techniques were employed to examine a YouTube report about Nujood Ali, a victim of child marriage in Yemen, to gauge the emotional tone and attitudes of viewers towards the media coverage and the practice itself.

This study identifies prevalent themes, narratives and perspectives related to child marriage in Yemen, highlighting the diverse journalism genres addressing the issue. The thematic analysis of the media corpus reveals several themes that align with findings from other studies, particularly those discussing the practice, its causes and its prevalence. The sentiment analysis of a YouTube report on Nujood Ali reveals significant insights into the public’s emotional response and attitude towards child marriage.

This study is limited to the content available in the compiled corpus and the specific methodologies employed, including thematic and sentiment analysis. These limitations might influence the generalizability of the findings.

This study is distinctive in its comprehensive and multidisciplinary approach to examining child marriage in Yemen and the broader Arab context. It employs a selection of digital humanities software to attempt a systematic, critical media analysis on child marriage in Yemen. Thematic analysis has uncovered unique insights, such as the inadvertent consequences of legislation intended to protect children, which have instead exacerbated the problem. In addition, the media has highlighted the negative role played by some religious scholars in Yemeni Parliament. These scholars have used their political power and immunity to obstruct efforts to end the practice, either directly or by mobilizing their supporters. A sentiment analysis of YouTube comments clearly indicates that the practice of child marriage is not widely accepted within the Yemeni community, despite some perceptions to the contrary.

Management soundness is essential for the effectiveness of any industry, most especially in any Islamic financial sector, whereby fairness and justice are the key factors to be observed. This paper aims to examine the management soundness of the takaful industry regarding their asset quality, re-takaful and actuarial and earning and profitability.

This study obtained quarterly data from 2019Q1 to 2021Q4 from the Islamic Financial Services Board across Malaysia, Brunei, Saudi Arabia, Jordan and the United Arab Emirates. The panel data modelling with random-effect and fixed-effect estimators were used for the analysis.

The finding revealed a strong relationship between re-takaful and earnings with management soundness and a weak relationship between asset quality and management soundness. In addition, the result established a significant and strong association between management soundness and earnings and profitability. Therefore, re-takaful and profitability contributed more to the management soundness of the takaful industry than asset quality during the study. An increase in earnings and profitability to enable the takaful industry to pay the claims, especially in calamity, and more focus on the quality of the asset they invested in could enable the smooth running of their day-to-day business affairs.

More attention is required on the quality of assets in their portfolio for the sustainability of the takaful industry to fulfil their underlying objectives. Management soundness in the takaful industry should address the challenges of managerial lathery, which some studies linked with operational inefficiency because of unskilled personnel in the takaful industry. This could benefit takaful clients, irrespective of religion, to attain their associated share of benefits from the Islamic insurance industry.

To the best of the authors’ knowledge, this is the first empirical study that examined the effectiveness of takaful management across Malaysia, Brunei, Saudi Arabia, Jordan, and the United Arab Emirates.

This study aims to examine the effect of corporate risk disclosure on investment efficiency. This study also seeks to contribute to existing literature of corporate risk disclosure by investigating voluntary and mandatory risk disclosure and its effect on the investment efficiency.

This study used two measures of corporate risk disclosure, level and quantity of corporate risk disclosure. A content analysis approach is adopted for non-financial Malaysian firms over the period 2010–2018.

The empirical results show that level of corporate risk disclosure leads toward efficient investment, whereas quantity of corporate risk disclosure causes inefficient investment when firms disclose more voluntary risks. Further, categorizing corporate risk disclosure into mandatory and voluntary risk disclosure, this study finds that voluntary risk disclosure tends to have higher investment inefficiency, while no evidence was found for mandatory risk disclosure.

This paper contributes to narrow stream of research investigating corporate risk disclosure through level and quantity contributing to the understanding of the level and quantity of risk disclosure in determining organizational investment efficiency.

The face value of nonowner-occupied real estate and business fixed assets is excluded from Zakah, according to most Fiqh scholars who argue that it has not been explicitly ordered during the lifetime of Prophet Muhammad (sas). This study aims to test the hypothesis that the role of these properties in the early Islamic economy was insignificant and, therefore, differed from today.

A qualitative historical analysis of primary Islamic sources and narrations from early Muslim historiography has been conducted to understand real estate sales and rent, construction costs and the number and size of houses owned by the Sahabah. In addition, inheritance reports and land gift records have been examined to obtain relevant information about the value of real estate. As for business fixed assets, the type, number and wealth of craftspeople as well as their tools have been analyzed to reveal their significance in comparison with today.

The findings of this study confirm the hypothesis that real estate for investment purposes and business fixed assets were quasi-non-existent during the lifetime of the Prophet (sas) and, therefore, irrelevant from a Zakah perspective.

This study intends to be a catalyst for the reconsideration of Zakah on these items of wealth and contributes to the Fiqhi discourse.

Several studies have been conducted on social inequalities. Despite highlighting inequalities between the rich and poor, researchers often overlook the fact that disabled people in Africa are marginalised more than their counterparts elsewhere. Using critical discourse analysis (CDA) as a theory and data analysis method, this study sought to answer two questions: (1) What is reported about the inclusion of disabled people in using digital media? (2) How is it reported? Twenty-two articles were purposively sampled: 15 from Newsday and 7 from The Herald published between 20 November 2017 and 24 September 2022. Findings indicate that the two papers exposed marginalisation of disabled people in an educative and informative way and had erudite analysis from disabled columnists. This was successful because the papers relied on the disabled community as sources of information and contributors of published material. The papers also engaged stakeholders such as corporates, government and civil society organisations. It is recommended that other newspapers and many forms of mass communication provide a representation of people with different forms of disabilities. Future studies could seek the views of disabled communities about their presentation in the digital media through disabled writers and providers of information.

This study aims to conceptualise a customer-centric model based on an online customer experience (OCE) construct, mediated by e-loyalty (EL) and e-trust (ET), to improve the continuous usage intention (CUI) of Indian digital banks from Generation Y and Z perspectives.

This study used an online survey method to gather data from a sample of 466 digital banking users, from which usable questionnaires were obtained. The obtained data were subjected to thorough analysis using PLS-SEM to further study the research hypotheses.

The main factors that determine digital banks’ OCE are perceived enjoyment, e-service quality, information quality and e-convenience. Additionally, relevant constructs were evaluated using an importance-performance map analysis.

This study used convenience sampling for the urban population using digital banking; therefore, the outcome may be generalised to a limited extent. It would be valuable to imitate studies in other countries to strengthen digital banking further.

There is a lack of research on digital banking and OCE in India; thus, this study helps rectify this issue while providing valuable insights. This study differs from others in that it examines the connections between OCE, EL, ET and the bottom line of financial institutions, using these factors as dependent variables instead of traditional measures.

Recycled aggregate self-compacting concrete (RASCC) has the potential for sustainable resource utilization and has been widely applied. Predicting the compressive strength (CS) of RASCC is challenging due to its complex composite nature and nonlinear behavior.

This study comprehensively evaluated commonly used machine learning (ML) techniques, including artificial neural networks (ANN), random trees (RT), bagging and random forests (RF) for predicting the CS of RASCC. The results indicate that RF and ANN models typically have advantages with higher R2 values, lower root mean square error (RMSE), mean square error (MSE) and mean absolute error (MAE) values.

The combination of ML and Shapley additive explanation (SHAP) interpretable algorithms provides physical rationality, allowing engineers to adjust the proportion based on parameter analysis to predict and design RASCC. The sensitivity analysis of the ML model indicates that ANN’s interpretation ability is weaker than tree-based algorithms (RT, BG and RF). ML regression technology has high accuracy, good interpretability and great potential for predicting the CS of RASCC.

ML regression technology has high accuracy, good interpretability and great potential for predicting the CS of RASCC.

This paper aims to examine the long-run relationship between stock market development and Nigerian economic growth from 1980 to 2020.

Market capitalization, number of listed companies, total value traded ratio and turnover ratio are used. An autoregressive distributed lag model is used for the analysis.

The market capitalization ratio and turnover ratio have positively significant links with economic growth. The number of listed companies has a negative and non-significant impact on economic growth. Total value traded ratio has a negatively significant link with economic growth in the short run. The positive but insignificant relationship between traded value ratio and turnover ratio in the long run growth means that the Nigerian stock market is growth inducing and on the right track as stock market liquidity drives growth.

The government and Security Exchange Commission should increase the market liquidity level by improving the trading infrastructure. The government and regulatory authorities should improve and effectively implement the existing policies that would ensure stock market growth. This facilitates the investors’ speed to purchase and sell shares. The Securities and Exchange Commission should reduce transaction costs to encourage active trading activities. The market should be diversified with investment instruments such as derivatives, futures and swap options which would limit the adverse effect of listed companies in the market. To increase the stock market liquidity, the Security and Exchange Commission should apply moral suasion to bring private companies that have met certain financial thresholds to convert to public companies. Government should improve on the legislation to encourage more private companies to list on the stock exchange.

The study findings add value in that stock market development has a positive impact on economic growth in Nigeria.