Search results

The presence and progression of stenosis disturb the normal circulation of blood through an artery and cause serious consequences. The proposed investigation is aimed to assess non-Newtonian characteristics of blood in an elliptical artery having stenosis. The blood is taken as Sutterby fluid flowing via a multi-stenosed elliptical cross-section artery.

The analytical solution of a mathematical model representing the considered problem is extracted in a non-dimensional form by utilizing the perturbation technique under the mild stenosis assumptions.

The graphical nature of these results is examined and discussed comprehensively for different physical parameters. The height and shape of stenosis are noted to have prominent effects on flow velocity. The wall shear stress and flow velocity attained high values in the stenotic portion of the artery. The non-uniform stenosis is observed to create higher resistance to the flow than the uniform stenosis. Further, a high disorder is noticed in the constricted region of the artery by streamlines analysis.

The manuscript completely comprehends the blood’s non-Newtonian flow in the arteries of elliptical shape having multiple stenoses. The present study is about the properties of non-Newtonian blood flow through an elliptical artery with many stenoses. The Sutterby fluid model is used to describe the blood’s non-Newtonian nature. By utilizing presumptions of mild stenosis, the mathematical model’s non-linearity is decreased, and the perturbation method is applied to generate the resulting equations.

The presence of stenosis can significantly impact the circulation of blood flow. When an artery becomes narrowed, it can create a constriction or obstruction in the flow path of blood, which can lead to several important fluid dynamics phenomena, i.e. increased velocity, shear stress, pressure drop, etc. The presence of stenosis can cause various damages and complications in the affected blood arteries and surrounding tissues, resulting in heart attacks or diseases like atherosclerosis.

The work presented in the manuscript was not published earlier in any form.

This study aims to empirically explore e-banking service quality and its impact on the e-banking loyalty through a mediating impact of e-banking satisfaction. The account holders of three domestic systemically important banks of Pakistan were surveyed during COVID-19 to examine the electronic services provided by these banks.

The data was collected through an adapted questionnaire by using emails and messaging applications. The database of a local marketing company in Pakistan was used, and 976 responses were included in the analysis. The structured equation modeling was used to test the propositions of study.

The findings delineate that reliability and website design proved to increase e-banking loyalty, particularly during COVID-19. The link between e-banking privacy and security and e-banking loyalty was proved as fully mediated by e-banking satisfaction; however, indirect effect of the reliability and website design with e-banking loyalty was partially mediated.

In strategic planning of e-banking mechanisms and the associated consumer behavior, the results of this study can be helpful for policymakers. In case of similar epidemics and natural calamities, consumers may depict similar behavior as shown during the lockdown and social distancing during COVID-19; hence, the study can help regulatory bodies in preparing their safety roadmap.

The mediating effect of e-banking satisfaction between privacy & Security and e-banking loyalty implies that customer give importance to secure e-banking platforms. There can be a variation in their loyalty because of privacy concerns. The application of cognitive–motivational–relational (CMR) theory in a relationship between e-banking service quality and e-banking loyalty with a mediating role of satisfaction is an emotional response to capture the behavioral changes during COVID-19. It enables researchers to understand the CMR theory concerning COVID-19 and e-banking perspective.

The Islamic rural banks have the potential to grow in Indonesia. It is important to learn and study the consumer behaviors toward the Islamic rural banks’ services to plan for future strategies. The purpose of this paper is to test the applicability of the theory of reasoned action in predicting the customers’ decision to use the Islamic rural banks’ services.

The descriptive and structural equation model analyses were used to analyze the data. A random sampling technique is adopted with a sample size of 180 consumers of the Islamic rural banks. There are variables to be tested such as Sharia system compliance, product knowledge on Sharia, promotion, services, attitude, subjective norms, intention and customer decisions to use the Islamic rural banks’ services.

The results found that the Sharia system compliance, promotion, services, attitude, subjective norms and intention variables have a significant effect on the use of services at Islamic rural banks. Only product knowledge on Sharia variable has been found to be insignificant.

The model can be used to prepare better strategies to attract more customers as well as increase public awareness toward Islamic rural banks’ products and services. The results are useful as a benchmark for policymakers to improve the establishment of Islamic rural banks particularly in Indonesia.

The 2008 financial crisis that hit conventional banks provides a market opportunity for special types of banks. Furthermore, given the current financial reform for financial inclusion and economic concern of the Nigerian Government, there is a need for research on the adoption of Islamic banks. Accordingly, the purpose of this study is to determine the predictors of Islamic bank adoption in Nigeria.

Data is collected from 385 Islamic bank customers in northern Nigeria and is analyzed using the partial least square structural equation modeling technique.

The result reveals that trust, social influence, knowledge and government support have a significant positive relationship with the adoption of Islamic banks, while relative advantage and compatibility do not. The model (trust, social influence, knowledge, government support, relative advantage and compatibility) explained 50% of the variance in the adoption of Islamic bank.

These findings are very important to scholars, the policymakers and Islamic bank operators in designing their marketing strategies. It shows that trust, social influence, government support and knowledge are predictors of Islamic bank adoption.

This study extended the diffusion of innovation (DOI) theory by combining relative advantage, compatibility with trust, social influence, knowledge and government support to the model. The developed model is validated for the study of Islamic bank adoption in an emerging market, Nigeria. Arguably, it is the only study that test effect sizes (f²) and predictive relevance (Q²) of extended DOI on Islamic banks.

This study aims to investigate the performance differences of Islamic and conventional banks in Pakistan by using financial ratios.

This study analyzed 5 Islamic and 19 conventional banks for the periods of 2007-2014. Two types of analyses were performed – sample t-test and logistic regression. Analysis was also performed on sub-sample considering crisis effects.

It was found that Islamic banks are relatively better in profitability, efficiency, risk and liquidity management, while conventional banks are superior in asset quality. Higher efficiency of Islamic banks contradicts with previous studies conducted in Pakistan. Probable reasons for this include phenomenal expansion of Islamic banking industry and its broad appeal to customers in Pakistan. Risk management practices of Islamic banks are superior to conventional banks, as Shariah rules restrict pure speculation in monetary terms. Better asset quality of conventional banks is attributed to their recognition and product diversity. During the crisis, Islamic banks were found less profitable than their counterparts.

This study suggests that high operational efficiency of Islamic banks should be converted into technical efficiency by improving human resource, introducing innovative market-oriented products and prudent resource allocations. As operational efficiency does not promise returns in long term, to sustain ongoing phenomenal growth of Islamic banking, management needs to gain customer trust.

This is an original research that compares performance differences across Islamic and conventional banks by using financial ratios.

The purpose of this study is to investigate the relationship between the listed firms' debt level and performance on the Pakistan Stock Exchange (PSX) during a five-year period.

This study uses pooled ordinary least squares regression and fixed- and random-effects models to analyse a cross-sectional sample of 30 Pakistani companies operating in the automobile, cement and sugar sectors during 2013–2017 (N = 150).

The results indicate that both short- and long-term debt have negative and significant impacts on firm performance in profitability. This suggests that agency issues may lead to a high-debt policy, resulting in lower performance. However, both sales growth and firm size have positive effects on the profitability of non-financial sector companies.

This study suggests that when debt financing significantly and negatively influences firm profitability, company owners and managers should focus on finding a satisfactory debt level. However, this study is limited to the automobile, cement and sugar sectors of Pakistan. Future studies could address other sectors, such as textiles, fertilizers and pharmaceuticals.

This study focusses on enhancing the existing empirical knowledge of debt financing's influence on the PSX's major sectors' profitability.

The purpose of this paper is to investigate the determinants of Muslims’ attitude and intention towards Murabaha financing by considering religiosity as a moderator.

The data were collected through a survey of 373 Muslims in Afghanistan and were analysed using the partial least squares technique.

The results showed that social influence and religious obligation have a positive effect on attitude towards Murabaha financing. Furthermore, social influence and attitude have a positive effect on the intention to use Murabaha financing. Religiosity moderates negatively the impact of social influence on attitude towards Murabaha financing.

Managers and marketers of Islamic banks may benefit from the findings of this study, which provide insight into the factors that should be considered to promote Murabaha financing.

The findings contribute to the literature on Islamic financing products by demonstrating the drivers of attitude towards and intention to use Murabaha financing. The study also extends the literature by testing the moderating role of religiosity. Furthermore, the study extends the theory of reasoned action in the context of Islamic financing by introducing religious obligation as a potential driver of attitude and religiosity as a moderator.

This paper aims to examine existing literature on halal food consumption from the perspective of consumer behaviour research. It identifies progress, current state and gaps and provides direction for future research to advance the field.

This paper reviewed papers from 2007 to 2023 using Scopus and WOS databases. The review used the Theories–Context–Characteristics–Methods (TCCM) framework and followed the scientific procedures and rationales for systematic literature reviews (SPAR-4-SLR) protocol.

The review summarises the methods, theory and approaches used in the topic and presents key findings and a proposed framework. It can guide future researchers in developing their models, making it a valuable starting point for future research. Despite the existence of SRL in halal food to the best of the authors’ knowledge, this work is the first review that proposes a model for halal food in consumer behaviour.

This review provides a twofold contribution. First, this review's theoretical contribution is advancing consumer behaviour literature on halal food. Second, this work's practical contribution is to enrich practitioners' understanding of the antecedents of consumer behaviour regarding halal food. This is the first review proposing a consumer behaviour model for Halal food. It makes a theoretical contribution to understanding consumer behaviour on Halal food and provides practical insights for practitioners.

This study aims to examine how sharia supervisory board (SSB) characteristics are determinants of the maqashid sharia performance (MSP) of Islamic banks (IBs) and how MSP has implications for profitability and for profit-sharing investment account holders (PSIAHs).

MSP is ascertained by semi-structured interviews. The SSB characteristics measured are size, cross-membership, education level, expertise, reputation, rotation and remuneration. Annual reports of Indonesian and Malaysian IBs from 2010 to 2018 are analysed using panel data regression.

In Indonesia, SSB education level attenuates MSP, while other characteristics have only minor influence. However, in Malaysia, SSB size, education and reputation reinforce MSP, while others are ineffective. MSP in both countries is pseudo-Islamic; so their customers ignore religiosity. However, MSP in Malaysia can improve profitability because sharia assurance is more transparent; meanwhile, MSP in Indonesia cannot improve profitability because sharia assurance is less transparent.

In order for MSP to improve in Indonesia, the regulators need to increase SSB size, reduce cross-membership and arrange the format for sharia assurance in SSB reports, while IBs need to increase SSB education and expertise.

MSP is constructed in accordance with legal and social requirements to achieve IBs’ Islamic, economic, social and ethical objectives. Resource dependence theory is used to evaluate SSB, while PSIAH and profitability are investigated to demonstrate the impact of MSP. Finally, comparing SSB capabilities in Indonesia and Malaysia could be beneficial to regulatory and IB policies.

The purpose of study is to examine the dual nature of the branches for the problem of Darcy–Forchheimer porous medium flow of rotating nanofluid on a linearly stretching/shrinking surface under the field of magnetic influence. The dual nature of the branches confronts the uniqueness and existence theorem, moreover, mathematically it is a great achievement. For engineering purposes, this study applied a linear stability test on the multiple branches to determine which solution is physically reliable (stable).

Nanofluid model has been developed with the help of Buongiorno model. The partial differential equations in space coordinates for the law of conservation of mass, momentum and energy have been transformed into ordinary differential equations by introducing the similarity variables. Two numerical techniques, namely, the shooting method in Maple software and the three-stage Lobatto IIIA method in Matlab software, have been used to find multiple branches and to accomplish stability analysis, respectively.

The parametric investigation has been executed to find the multiple branches and explore the effects on skin friction, Sherwood number, Nusselt number, concentration and temperature profiles. The findings exhibited the presence of dual branches only in the case of a shrinking sheet.

The originality of work is a determination of multiple branches and the performance of the stability analysis of the branches. It has also been confirmed that such a study has not yet been considered in the previous literature.