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This study aims to analyze the thermo-hydrodynamic characteristics for the mixed convection boundary layer flow of three-particle aqueous nanofluid on a shrinking porous plate with the influences of thermal radiation and magnetic field.

The basic equations have been normalized with the help of similarity transformations. The obtained equations have been solved numerically using the shooting method in conjunction with the sixth-order Runge–Kutta technique. Numerical results for the velocity and temperature are illustrated with varying relevant parameters.

The results reveal that the local drag coefficient increases with higher values of the magnetic field parameter, nanoparticle volume fraction and suction parameter. On the other hand, boosting the radiation parameter and nanoparticle concentration notably enhances heat transfer. Furthermore, it is noted that the suction parameter and magnetic field parameter both lead to an increase in velocity and promote the occurrence of dual solutions within the problem conditions.

The limitations are that the model is appropriate for thermal equilibrium of base fluid and nanoparticles, and constant thermo-physical properties.

To the best of the authors' knowledge, no study has taken an attempt to predict the flow and heat transfer characteristics of unsteady mixed convection ternary hybrid nanofluid flow over a shrinking sheet, particularly under the influence of magnetic field and radiation. The findings obtained here may hold particular significance for those interested in the underlying theoretical and practical implications.

The purpose of this study is to investigate the link between corporate social responsibility (CSR) and the amount of trust customers have in Somali Islamic banks. Furthermore, the role of gender in CSR activities and Islamic bank clientele is evaluated.

Throughout February and March 2022, 410 clients of Islamic banks in Somalia were surveyed using a questionnaire. The partial least squares approach and the structural equation model are applied to examine the data.

Findings indicate that all variables of CSR activities, such as social product, social legal, social needs, social environment and social employees’ responsibility, are influential and significant predictors of trust in Islamic banks in Somalia. Gender inequalities moderate the relationship between social product, social needs, social environment, social employee and trust. Conversely, only social legal responsibility was unaffected by gender differences in Somalia regarding people’s trust in Islamic banks.

A sample from a developing country such as Somalia is useful for shedding light on the outcomes of consumers’ perceptions of and trust in businesses’ CSR in the developing world. Furthermore, this study contributes to knowledge regarding CSR and how it can help the Islamic banking industry. Its findings will be useful to policymakers and regulatory bodies in the banking industry in their efforts to improve CSR.

To the best of the authors’ knowledge, this study is the first empirical investigation of its kind about the understudied relationship among customer trust, CSR efforts and gender in Somalia context. Furthermore, it investigates how gender specifically moderates CSR in the Islamic banking sector in a developing country.

This paper aims to investigate the immediate effect of the outbreak of the COVID-19 pandemic by investigating volatility transmission and dynamic correlation between stock (conventional and Islamic) markets, bitcoin and major commodities such as gold, oil and silver at different investment horizons before and after 161 trading days of the outbreak of the COVID-19 pandemic.

The MGARCH-DCC and maximum overlap discrete wavelet transform -based cross-correlation were used in the estimation of the volatility spillover and continuous wavelet transform in the estimation of the time-varying volatility and correlation between the assets at different investment horizons.

The authors observed a sudden correlation breakdown following the COVID-19 shock. Oil (Bitcoin) was a major volatility transmitter before (during) COVID-19. Digital gold (Bitcoin), gold and silver became highly correlated during COVID-19. The highest co-movement between the assets was observed at medium and long-term investment horizons.

The study findings have a financial implication for day traders, investors and policymakers in the understanding of volatility transmission and intercorrelation in a bid to actively manage stylized and well-diversified asset portfolios.

This study is unique for its employment in estimating the time-varying conditional volatility of the investable assets and cross-correlations between them at different investment horizons, particularly before and after COVID-19 outbreak.

Owing to religious and economic preferences in Muslim-dominated countries, middle-income customers are at the heart of banks’ strategic targeting. This study aims to investigate selected middle-income Islamic bank customers from Sylhet, one of Bangladesh’s top religious and cultural cities, to examine their perceptions of the Islamic banking services.

This study forwards three determinants of overall satisfaction. These are perceived relative advantage (PRA), perceived risk management (PRM) and perceived customer engagement (PCE). The study has used structured questionnaire and collected complete data on 300 middle-income Islamic bank users. The data was analysed using exploratory factor analysis (EFA), confirmatory factor analysis (CFA) and structural equation modelling (SEM).

While all the three selection factors significantly influence overall satisfaction, PCE has greater positive impact on overall customer satisfaction, followed by PRA and PRM. “Convenient location”, “competitive charges” and “return on deposit despite low earnings” are the top three instruments measuring “PCE”. Religion did not qualify as a standalone selection factor. The results are robust across tests conducted by using EFA, CFA and SEM.

Gross purchasing power of middle-income class in Bangladesh grew from 7% to over 30% during the past decade, and the purchasing power of this class stood at US$100bn. Having a greater portion of this population as Muslims, banks can design products and marketing campaigns by using the three selection criteria that offer a combination of faith and non-faith-based variables.

Similar studies on the middle-income customer group have been rare, especially from the Islamic banking perspective. These findings offer a concise list of three factors for the bank managers to build their strategies. With respect to the Vision 2021, these findings carry greater socio-economic significance given the transition of Bangladesh to a middle-income country.

The sustainable development goals (SDGs) devised by the United Nations (UN) call on countries – whether rich or poor – to solve global issues, improve lives and save the planet for future generations. However, the UN predicts that between $5 and $7tn will need to be spent annually between now and 2030 to accomplish these goals, posing a major financial hurdle. Islamic social finance, if used ethically, seeks to realise SDGs through fairness, justice and equity. Thus, this study aims to determine how Islamic social finance instruments such as Zakat, Waqf, Sadaqat and Qard-hasan contribute to realising SDGs.

This study used a preferred reporting items for systematic reviews and meta-analyses-based systematic literature review. Scopus and Google Scholar were chosen for the qualitative and meta-analysis of studies. The topic was reviewed in 178 academic papers from 2000 to 2022. The required articles were analysed after careful review.

Islamic social financing mechanisms have the capacity to solve many social issues and create better welfare conditions by ensuring economic, social and environmental sustainability in line with the SDGs. Indonesia and Malaysia lead Islamic social finance research, the survey found. The review revealed that Islamic social funding can achieve 11 out of 17 SDGs. Islamic commercial finance can be used for the remaining goals. The paper highlights Islamic social funding research limitations and opportunities.

The review study shows that Islamic social finance can fill the SDG funding gap, especially considering the post-pandemic financial crisis that has increased global income inequality and social disparities.

To the best of the authors’ knowledge, this article is the first of its kind to review the potential of Islamic social financing instruments to help achieve the SDGs.

Despite city authorities in Bangladesh being concerned about urban sustainability, they often face difficulties in addressing predominant urban challenges threatening urban sustainability, due to limited relevant literature. To reduce this gap, this study aims to address the predominant urban challenges and assess their severity levels in four city corporations of Bangladesh, e.g. Rajshahi, Sylhet, Barishal, and Gazipur.

Using a mixed-method approach, this study rigorously analyzed field-level data obtained from 1,200 residents across selected cities using diverse statistical techniques. The quantitative analysis included descriptive analysis, exploratory factor analysis, and chi-square tests, whereas qualitative insights were derived through thematic analysis.

The study uncovered nine predominant urban challenges under two crucial factors “Feeble Urban Management” and “Illicit Activities” that collectively explain 62.20% variance. “Feeble Urban Management” explains 44.17% variance, whereas “Illicit Activities” accounts for 18.13%. Within these challenges, uncontrolled urban sprawl, inadequate disaster management, congested roads, and shabby drainage and waste management pose significant threats to urban sustainability. Illicit activities, manifested by encroachment on water sources, grabbing roadside, destruction of natural properties, and activities undermining social security, compound the urban sustainability issue. Severity analysis reveals Sylhet (54.5%), Rajshahi (46.4%), and Barishal (31.2%) as highly impacted, whereas Gazipur exhibits moderate severity (66.7%).

The findings of this study reveal intrinsic insights into urban challenges in Bangladesh that will provide valuable guidance to city authorities, equipping them to implement integrated and effective initiatives and programs that overcome these predominant urban challenges, with a specific focus on Rajshahi, Sylhet, and Barishal city corporations.

Because of chronic financial crises experienced during past several decades repeatedly and a failure to protect investors’ rights as a result, the world is looking for an alternative form of stock market for quite some time so that interests of all relevant stakeholders can be safeguarded. At the same time, from the perspectives of devout Muslims, the current form of stock market restricts a Muslim to make investments in the market because of several unsatisfying provisions from the viewpoint of the Islamic law known as Shariah. This study aims to provide the criteria under which conditions of the Islamic Shariah permit making investments in the stock market. Hand in hand with that primary discussion, it has been eluded briefly why the Islamic Shariah principles offer a better alternative against conventional practices of the stock market.

This is a descriptive study based on the literature review.

This study explores the basic Islamic principles of investment in the stock market by revisiting the norms laid down by Shariah and current global practices of Islamic stock market and indexes.

This study will work as a guideline for investors and market authorities to understand the original Shariah rulings and the benchmark rulings for investment or establishing full-fledged Islamic stock markets, indexes and mutual funds.

In the current information age, when the attention spans of most people have become very short, marketers are facings serious challenges to grab the attention of their target audience effectively and fruitfully. From street corner to bedroom, virtually every perceivable location of human traces are littered with activity of marketers, whether they are small or large in scale or the recipients of their information understand the message properly. Studying consumers’ acceptance of the main ethical issues in communication, mainly in advertising, has recently been receiving much attention from scholars. Therefore, to grab the attention of people in the increasing competitive environment, advertisers have resorted to using what they feel can quickly attract the audience. For example, the attachment of attractive women with their physical natural endowments presented in explicit sexually appealing postures to products/services that have no linkage with women. These practices have raised some moral and ethical questions within the society. Therefore, this study aims to focus on discussing marketing communication through presenting women as a sexual object from the morality, ethics and religious perspectives.

This is a descriptive study based on the systematic literature review. Initially, this paper discusses the ethical issues of using women and sexual appeals in the process of marketing communication, as well as the current level of practices in the industry. Then, it discusses the consequences and dimensions of the issues from different types of ethical grounds. Finally, it provides recommendations with the objective of finding a common ground from business and social perspectives. It also mentions the scopes of further research, which could lead the secular world to modify their moral values and come closer to the norms of other civilized societies.

The position of the paper takes is that considering the negative effects of the prevalent advertising in society, the practice falls short of human moral values; as a result, it is considered unethical.

This review paper examines the ethical implication of using women as marketing tools from the perspectives of morality, business and Islamic principles that will help business groups, as well as the whole religious community, especially Muslims.

The purpose of this study is to analyze the profitability performance of Islamic banks (IBs) of the Gulf Cooperation Council (GCC) region during 2008 global financial crisis.

Bank-specific data are taken from the Bank Scope database and macroeconomic data are collected from International Financial Statistics. Using a panel data series of 30 banks for the period of 2005 to 2011, the study shows the evidence of structural break for the crisis year as well as the factors that impact the profitability of IBs.

The performance of GCC IBs was significantly influenced during the crisis period by capital adequacy, credit risk, financial risk, operational efficiency, liquidity, bank size, gross domestic product, growth rate of money supply, bank sector development and inflation rate. The study also finds that there is a structural change before and after the global financial crisis.

This is an original study that shows that the Sharīʿah-compliant banks have performed better during the crisis and are not affected based on their internal performance records; rather, they have been affected indirectly from the macro shock owing to the overall economic crisis.

Cash waqf is a powerful financial instrument that deals with the issue of liquidity constraints in waqf institutions. While there are several models of cash waqf operating in different countries, there is increasing demand for innovative cash waqf models, especially within the financial technology context. This paper aims to propose a practical alternative model of funding for waqf institutions using the concepts of crowdfunding and cash waqf.

This study evaluated the literature relevant to cash waqf models that have been implemented in different countries and proposed a new viable alternative model.

Results offer an alternative financing model, named crowdfunding cash waqf model, for waqf institutions to overcome monetary constraints and enable development projects to be completed.

The current study has important implications for both officials and relevant stakeholders. It is sought to bring better consistency between cash waqf donors, solving the liquidity problem faced by waqf institutions, enhancing the transparency of waqf institutions and their use of waqf funds, wealth circulation and financing businesses without interest-based loans (riba). By incorporating a crowdfunding and investment mechanism in the model, this method of collecting funds will assist governments in reducing their expenditure on waqf institutions and other social development programmes.

The proposed model differs from current methods of generating cash waqf, including those are also internet-based. The proposed model is devised to help waqf institutions achieve financial sustainability by including an investment mechanism in the model to sustain the development of waqf projects.