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Article
Publication date: 1 December 2021

Ibrahim A. Amar, Salma M. Hassan, Fatima H. Aqeela, Mohamed Y. Najem and Fatima A. Altohami

This paper aims to investigate the potential application of Balanites aegyptiaca bark powder (BABP) for removing a basic textile dye, methylene blue (MB), from aqueous solutions.

91

Abstract

Purpose

This paper aims to investigate the potential application of Balanites aegyptiaca bark powder (BABP) for removing a basic textile dye, methylene blue (MB), from aqueous solutions.

Design/methodology/approach

The biosorbent (BABP) was characterized using Fourier transform infrared spectroscopy (FTIR) and point of zero charge (pHPZC). Batch mode was selected to study the biosorption of MB onto BABP surface at different experimental conditions (shaking speed, contact time, initial solution pH, ionic strength, solution temperature, biosorbent dosage and initial dye concentration). Besides, the reusability of BABP for MB biosorption was also examined.

Findings

The biosorption results revealed that approximately 96% of MB was removed successfully at the optimized operational conditions. Pseudo-second-order and Langmuir models, respectively, better described the adsorption kinetics and isotherms. The monolayer biosorption capacity (qmax) for MB was about 97.09 mg/g. According to thermodynamics findings, the MB biosorption onto BABP is an exothermic and spontaneous process. The results demonstrate that BABP can be considered as potential eco-friendly, readily available and low-cost biosorbent for hazardous textile dyes removal from water bodies and also provides a promising method for minimization of agricultural solid wastes (e.g. plant barks).

Originality/value

The utilization of Balanites aegyptiaca bark powder (BABP), solid waste material, as low-cost and eco-friendly biosorbent for the removal of hazardous basic textile dye (methylene blue) from the aquatic environment.

Details

Research Journal of Textile and Apparel, vol. 26 no. 1
Type: Research Article
ISSN: 1560-6074

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Article
Publication date: 5 December 2016

Salma Louati, Awatef Louhichi and Younes Boujelbene

Based on a matched sample of 34 Islamic banks and 89 conventional ones, the purpose of this paper is to analyze and compare the risk-capital-efficiency interconnection.

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Abstract

Purpose

Based on a matched sample of 34 Islamic banks and 89 conventional ones, the purpose of this paper is to analyze and compare the risk-capital-efficiency interconnection.

Design/methodology/approach

Based on the triple square model (3SLS), two major risk measures have been accounted for, namely, the ratio of non-performing loans to total loans (credit risk) and the z-score indicator (risk insolvency). In addition, certain bank-specific factors as well as macroeconomic ones have also been considered in the model.

Findings

The reached results appear to reveal that the best capitalized Western banks turn out to be more engaged in an excessive risk-taking behavior, resulting in increased toxic-loan ratios and, simultaneously, a rather shaken stability. Concerning Islamic banks, cost efficiency has proven to have a negative and significant effect on NPLs. However, the capital, technical efficiency, competitiveness and macroeconomic factors turn out to have a significant and positive effect on Islamic banks’ insolvency risk, thus helping promote these banks’ stability.

Originality/value

In addition to the enrichment of literature regarding dual-banking systems, the authors hope the present work would provide a modest contribution to the regulators belonging to the MENA region and Asia with useful results. In particular, the authors recommend developing some management and monitoring tools whereby the risk-taking behavior of highly capitalized conventional banks could be moderated. As a matter of fact, special attention should be paid to the agency problems prevalent within Islamic financial institutions, particularly the best capitalized ones.

Details

Managerial Finance, vol. 42 no. 12
Type: Research Article
ISSN: 0307-4358

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Article
Publication date: 30 November 2022

Ussama Yaqub, Tauqeer Saleem and Salma Zaman

The purpose of this paper is to explore the reaction of Pakistani citizens toward online privacy in the context of the Pakistan Government's COVID-19 app privacy breach.

103

Abstract

Purpose

The purpose of this paper is to explore the reaction of Pakistani citizens toward online privacy in the context of the Pakistan Government's COVID-19 app privacy breach.

Design/methodology/approach

The authors implemented supervised and unsupervised machine learning methods, that is, topic modeling and sentiment analysis on Google app store user review data.

Findings

There was no visible concern shown by the citizens toward the COVID-19 app privacy breach, even though it was well highlighted in the news. Other studies have also indicated that concern for online privacy remains low in developing countries, which aligns with the findings of this paper.

Originality/value

Globally COVID-19 apps have been a cause of concern in terms of public privacy. To the best of the authors’ knowledge, this paper is the first in the Pakistani context to show the impact of a well-document privacy breach of a government COVID-19 app.

Details

Global Knowledge, Memory and Communication, vol. 73 no. 6/7
Type: Research Article
ISSN: 2514-9342

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Article
Publication date: 5 April 2021

Arun Kumar Tarofder, Umme Salma Sultana, Raisal Ismail, Suha Fouad Salem and Adiza Alhassan Musah

The purpose of this study is two-fold: classifying non-Muslim halal fashion buyers by applying quantitative techniques and identifying the persuading determinants of the…

1152

Abstract

Purpose

The purpose of this study is two-fold: classifying non-Muslim halal fashion buyers by applying quantitative techniques and identifying the persuading determinants of the non-Muslim women’ halal fashion buying behaviour (HFBB).

Design/methodology/approach

By adapting items from prior studies, a structured questionnaire was developed and distributed face-to-face to various Muslim fashion stores in Malaysia. After a one-month effort, 221 responses were obtained from non-Muslim consumers by using convenience sampling. Next, a clustering analysis was used to classify them from a contrasting perspective. Finally, regression and Andrew F. Hayes’s process procedures were applied to examine the three independent variables’ effect and the moderating variables.

Findings

The results revealed the characteristic behaviour of the non-Muslim women explicitly, which is related to their halal fashion purchasing decision. Based on the ANOVA results, there were different motives for buying halal fashion by non-Muslim women. Additionally, it was found that the most crucial determinants for non-Muslim’s HFBB are “cultural adaptation”, albeit, there is no substantial proof of a significant moderating effect of age and income on the consumers.

Research limitations/implications

These discoveries are advantageous for halal fashion retailers and provide an appealing domain for further investigations in the context of the global halal study.

Practical implications

This study provided an idea for an untapped segment on the halal fashion sellers’ segmentation and positioning strategy. The study’s results suggested specific managerial and practical recommendation that the sellers can use to attract non-Muslim consumers.

Originality/value

This study was amongst the uncommon investigations within the halal fashion context that will enlighten the managers’ selling strategy on the most neglected market segment. The results of this study provided an empirical understanding of how to sell halal fashion to non-Muslim consumers.

Details

Journal of Islamic Marketing, vol. 13 no. 8
Type: Research Article
ISSN: 1759-0833

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Abstract

Details

The Emerald Handbook of Multi-Stakeholder Communication
Type: Book
ISBN: 978-1-80071-898-2

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Article
Publication date: 20 August 2019

Issal Haj Salem, Salma Damak Ayadi and Khaled Hussainey

The purpose of this paper is to investigate the potential influence of corporate governance mechanisms on risk disclosure quality in Tunisia.

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Abstract

Purpose

The purpose of this paper is to investigate the potential influence of corporate governance mechanisms on risk disclosure quality in Tunisia.

Design/methodology/approach

The authors examine 152 annual reports of Tunisian non-financial-listed firms during 2008–2013, and use the manual content analysis method to measure the risk disclosure quality.

Findings

The authors find that the quality of risk disclosure in Tunisian companies is relatively low, and also find that the quality of risk disclosure is positively associated with institutional ownership, board independence, the presence of women on the board, the presence of family members on the board and the independence of audit committee. Managerial ownership has a negative effect on risk disclosure quality. Finally, the authors find that the revolution decreases the influence of concentration ownership, government ownership, family ownership and audit committee size on risk disclosure quality.

Originality/value

Using a comprehensive set of corporate governance mechanisms and a new measure for risk disclosure quality in Tunisia, the authors provide the first empirical evidence on the impact of corporate governance mechanisms on risk disclosure quality in a developing country. The study has theoretical and practical implications for both developed and developing countries.

Details

Journal of Accounting in Emerging Economies, vol. 9 no. 4
Type: Research Article
ISSN: 2042-1168

Keywords

Available. Open Access. Open Access
Article
Publication date: 10 June 2019

Beebee Salma Sairally

766

Abstract

Details

ISRA International Journal of Islamic Finance, vol. 11 no. 1
Type: Research Article
ISSN: 0128-1976

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Article
Publication date: 28 January 2020

Muhammad Tahir and Salma Ibrahim

The purpose of this study is to investigate the relative performance of Shariah-compliant companies (SCCs) compared to conventional companies. This study focuses on two periods…

434

Abstract

Purpose

The purpose of this study is to investigate the relative performance of Shariah-compliant companies (SCCs) compared to conventional companies. This study focuses on two periods, the first being the recession period of 2007-2010 and the second, the non-recession period of 2011-2014.

Design/methodology/approach

A quantitative approach is adopted using an ordinary least square regression model. The chosen variables are those used by previous researchers in conventional studies of corporate performance. Data are selected from individual companies listed on the FTSE All World Index. This study examines two periods of time: the recession of 2007-2010 and the post-recession years of 2011-2014 to analyse performance measured by accounting returns (return on equity, return on asset and earnings per share) and market returns (stock return and price/earnings ratio).

Findings

The study found that SCCs outperformed non-Shariah compliant companies, in terms of both accounting and market returns during both periods. It was also found that size has a negative effect on performance during both periods. The degree of risk, leverage and growth has no significance in either period, but cash flow from operations has a positive effect on performance in both.

Research limitations/implications

The study could beneficially be extended by the inclusion of corporate governance variables to assess how these affect performance in SCCs.

Originality/value

In contrast to previous research carried out on indices, this study uses data from individual companies listed on the FTSE All World Index. It provides insight into the way Shariah ethics can influence performance and suggests that some of the features could be useful if adopted by conventional companies.

Details

Journal of Islamic Accounting and Business Research, vol. 11 no. 3
Type: Research Article
ISSN: 1759-0817

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Article
Publication date: 6 March 2024

Ahmed EL Hana, Ahmed Hader, Jaouad Ait Lahcen, Salma Moushi, Yassine Hariti, Iliass Tarras, Rachid Et Touizi and Yahia Boughaleb

The purpose of the paper is to conduct a numerical and experimental investigation into the properties of nanofluids containing spherical nanoparticles of random sizes flowing…

57

Abstract

Purpose

The purpose of the paper is to conduct a numerical and experimental investigation into the properties of nanofluids containing spherical nanoparticles of random sizes flowing through a porous medium. The study aims to understand how the thermophysical properties of the nanofluid are affected by factors such as nanoparticle volume fraction, permeability of the porous medium, and pore size. The paper provides insights into the behavior of nanofluids in complex environments and explores the impact of varying conditions on key properties such as thermal conductivity, density, viscosity, and specific heat. Ultimately, the research contributes to the broader understanding of nanofluid dynamics and has potential implications for engineering and industrial applications in porous media.

Design/methodology/approach

This paper investigates nanofluids with spherical nanoparticles in a porous medium, exploring thermal conductivity, density, specific heat, and dynamic viscosity. Studying three compositions, the analysis employs the classical Maxwell model and Koo and Kleinstreuer’s approach for thermal conductivity, considering particle shape and temperature effects. Density and specific heat are defined based on mass and volume ratios. Dynamic viscosity models, including Brinkman’s and Gherasim et al.'s, are discussed. Numerical simulations, implemented in Python using the Langevin model, yield results processed in Origin Pro. This research enhances understanding of nanofluid behavior, contributing valuable insights to porous media applications.

Findings

This study involves a numerical examination of nanofluid properties, featuring spherical nanoparticles of varying sizes suspended in a base fluid with known density, flowing through a porous medium. Experimental findings reveal a notable increase in thermal conductivity, density, and viscosity as the volume fraction of particles rises. Conversely, specific heat experiences a decrease with higher particle volume concentration.xD; xA; The influence of permeability and pore size on particle volume fraction variation is a key focus. Interestingly, while the permeability of the medium has a significant effect, it is observed that it increases with permeability. This underscores the role of the medium’s nature in altering the thermophysical properties of nanofluids.

Originality/value

This paper presents a novel numerical study on nanofluids with randomly sized spherical nanoparticles flowing in a porous medium. It explores the impact of porous medium properties on nanofluid thermophysical characteristics, emphasizing the significance of permeability and pore size. The inclusion of random nanoparticle sizes adds practical relevance. Contrasting trends are observed, where thermal conductivity, density, and viscosity increase with particle volume fraction, while specific heat decreases. These findings offer valuable insights for engineering applications, providing a deeper understanding of nanofluid behavior in porous environments and guiding the design of efficient systems in various industrial contexts.

Details

Multidiscipline Modeling in Materials and Structures, vol. 20 no. 3
Type: Research Article
ISSN: 1573-6105

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Article
Publication date: 26 February 2021

Salma S. Abed

This study aims to explore the factors that could affect consumers’ adoption of augmented reality (AR) and investigate the interaction between gender and educational level on…

1076

Abstract

Purpose

This study aims to explore the factors that could affect consumers’ adoption of augmented reality (AR) and investigate the interaction between gender and educational level on intention to adopt AR in developing countries as demonstrated here by Saudi Arabia.

Design/methodology/approach

The examined constructs were developed by integrating factors from the unified theory of acceptance and the use of technology (UTAUT2), including performance expectancy, expectancy effort, social influence, facilitating conditions, hedonic motivation and habit. Price value was eliminated and innovativeness was added to the examined constructs. Data were collected from 673 Saudi consumers through an online survey by implementing a convenience sampling. Furthermore, the effect of gender and education level on behavioral intention to adopt AR by consumers was examined.

Findings

The results of the regression analysis showed that the independent variables statistically significantly predict the consumers’ behavioral intention toward AR adoption with all the examined constructs. The proposed model was able to explain 84% of the variance of behavioral intention. Furthermore, there was a statistically significant interaction between the effects of gender and educational level on intention to adopt AR.

Practical implications

This study will clarify the relatively low diffusion rate of AR adoption in Saudi Arabia, which will help business owners and marketers to develop the right strategies, especially strategies that are associated to marketing and developing mobile applications by incorporating AR technologies, which will attract the attention of many users.

Originality/value

This is one of the few studies that has explored the intention to adopt AR by consumers by examining the UTAUT2 constructs in the Middle Eastern cultural contexts, in contrast to previous studies, specifically Saudi Arabia. This study further investigated the interaction between the effects of gender and educational level on intention to adopt AR.

Details

Review of International Business and Strategy, vol. 31 no. 3
Type: Research Article
ISSN: 2059-6014

Keywords

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