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Article
Publication date: 24 December 2024

Kainat Fatima, Rabia Zaheer, Zaib Sohail and Mehr-un-Nisa Shakeel

This paper highlights public health issues arising in prisons due to overcrowding – focusing on existence of tuberculosis (TB) and its transmission in a TB endemic country. It…

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Abstract

Purpose

This paper highlights public health issues arising in prisons due to overcrowding – focusing on existence of tuberculosis (TB) and its transmission in a TB endemic country. It further addresses feasible TB management, to develop an applicable preventive intervention that will control TB transmission and development within and outside prisons. This study aims to decrease morbidity and mortality caused by TB by identifying latent tuberculosis infection (LTBI) cases.

Design/methodology/approach

A novel cross-sectional study conducted on male prisoners of Central Prison Rawalpindi, dividing them into three strata, i.e. under-trial (UTP), convicted (CTP) and condemned (CP) prisoners. Prevalence of latent TB infection within prisoners was methodologically calculated using multiple statistical analysis at 95% confidence interval. This research sourced an invasive skin test (Mantoux test) for primary data collection from targeted key population.

Findings

This research calculated existing prevalence of LTBI at 47.25%, 47.45% and 53%, respectively in UTP, CTP and CP prisoners, and 32.2% in total prison population. Overcrowding, poor health conditions and excessive smoking presented strong statistical significance to high LTBI prevalence across the prison population.

Research limitations/implications

Limitations included accessibility to prisons due to procedural concealment, and unannounced release of UTPs that was dealt through supplementary testing. The presented research findings highlight the disease spread across key populations, and the importance of identifying, containing and controlling them. It elaborates the crucial use of Mantoux tuberculin skin test (TST) to identify and isolate LTBI and potential TB cases in a closed population. It also facilitates policy implications that promote health and safety for prisoners, law enforcers and associated external population.

Practical implications

TB is one of the top 10 fatal illnesses and second highest infectious disease worldwide. For decades, TB ruled over human health and threatened their survival. Health-care professionals face challenges in locating, isolating, treating and controlling TB across the globe. Pakistan is a TB endemic country that internationally ranks fifth in nations with high TB burden. LTBI prevalence is unknown in Pakistan. Key populations are well-known to comparatively live with higher rates of infectious disease. Therefore, this research targeted a key population and has successfully calculated LTBI prevalence in overcrowded male prison population.

Social implications

Key populations are at high risk of contracting and transmitting communicable diseases. They not only possess higher disease incidences, but are also responsible for disease-spread within and outside their community. Targeting them will help in controlling for LTBI across prison population as well as the external population that is associated with the prisoners. TST allowed maximum screening coverage, encapsulated LTBI, spread awareness and eliminated stigmatisation.

Originality/value

Prevalence of TB and LTBI are unknown in Pakistan. This novel research calculated LTBI prevalence through primary data collection and targeted key populations. Authors collected primary data on case-by-case basis. This study has efficaciously located and isolated LTBI cases among the sample population following internationally standardised TST procedures.

Details

International Journal of Prison Health, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2977-0254

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Article
Publication date: 3 June 2024

Nida Malik, Amir Zaib Abbasi, M. Sadiq Sohail, Ghazanfar Ali Abbasi and Ding Hooi Ting

There has been a dramatic rise in the use of online food delivery apps (FDAs) services since the COVID-19 pandemic. Though online FDAs have contributed significantly to the rise…

377

Abstract

Purpose

There has been a dramatic rise in the use of online food delivery apps (FDAs) services since the COVID-19 pandemic. Though online FDAs have contributed significantly to the rise in demand for products from the gourmet industry, little is known regarding the factors that inspire customers to order from online FDAs, subsequently influencing customers’ satisfaction. Considering the knowledge gap, this study utilizes the stimulus-organism-response (S-O-R) model to conceptualize the factors: stimuli (eWOM, online reviews and online deals as external stimuli, and late-night craving and convenience as internal stimuli) that determine the organism level (i.e. customers’ inspiration) to subsequently generate the response (i.e. customers’ satisfaction).

Design/methodology/approach

We collected the data from 388 users and analyzed it via partial least squares – structural equation modeling (PLS-SEM).

Findings

The results reveal that online reviews, deals, late-night food cravings and convenience positively determine customers’ inspiration and satisfaction. In contrast, eWOM fails to impact customers’ inspiration directly and indirectly, affecting customers’ satisfaction through inspiration. Besides, customers’ inspiration positively mediates the relationship between stimuli (e.g. online reviews, online deals, late-night cravings and convenience) and customers’ satisfaction.

Originality/value

This study is novel in that it explores the impact of internal (late-night craving and convenience) and external (eWOM, online reviews and online deals) stimuli on customer inspiration and subsequently predicts customer satisfaction. We also expand prior studies on food delivery apps by studying customer inspiration as a mediating mechanism between internal and external stimuli and customer satisfaction.

Details

Aslib Journal of Information Management, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2050-3806

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Article
Publication date: 29 October 2024

Lukman Raimi, Ibrahim Adeniyi Abdur-Rauf and Basirat Olaide Raimi

Ethical entrepreneurship and financing models based on Islamic principles are insufficiently researched and discussed in the emerging plural economic landscape. So far, Islamic…

103

Abstract

Purpose

Ethical entrepreneurship and financing models based on Islamic principles are insufficiently researched and discussed in the emerging plural economic landscape. So far, Islamic theorists have made commendable efforts in this direction. To fill the knowledge gaps, this study aims to explore more rigorously the interdependence of halal entrepreneurship and Islamic finance in creating a strong halal ecosystem.

Design/methodology/approach

Using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) methodology, a systematic literature review (SLR) of 33 articles from 2001 to 2024 was conducted to answer three research questions. Publications were obtained using purposive sampling from the Scopus database. They were selected based on the ranking of high-quality journals, global coverage relevance to research and base years of publications.

Findings

Three key findings emerged from the SLR using the PRISMA protocol. First, halal entrepreneurship and Islamic finance complement each other by providing Shari’ah-compliant financial instruments, fostering ethical practices, enhancing market reach and ensuring business operations adhere to Islamic principles, thereby creating a cohesive halal ecosystem. Second, the strategic integration of halal entrepreneurship and Islamic finance – through innovation, sustainability practices, Shari’ah-compliant products, effective marketing and regulatory support – promotes economic growth, social welfare and sustainable development within the halal ecosystem. Third, Maqasid-ul Shari’ah principles guide halal entrepreneurship and Islamic finance by ensuring ethical standards, promoting social justice, emphasizing sustainability and ensuring that business and financial practices benefit society and adhere to Islamic ethical standards. These findings aid in developing a theoretically grounded conceptual framework for future empirical investigation.

Practical implications

Practically, policymakers, Islamic financial institutions and halal entrepreneurs can leverage this integrated approach to drive economic growth, social welfare and sustainable development, aligning operations with Maqasid-ul Shari’ah to ensure ethical standards and societal benefits. In addition, the findings aid in developing a theoretically grounded conceptual framework for future empirical investigation, both theoretically and methodologically.

Originality/value

Given the paucity of studies in this multidisciplinary area, this paper offers new insights into the interdependence of halal entrepreneurship and Islamic finance, grounded in the finance–growth nexus theory and Maqasid-ul Shari’ah principles. Unlike other exploratory studies, this research presents a theoretically grounded conceptual framework, paving the way for future empirical investigations.

Details

Journal of Islamic Marketing, vol. 16 no. 3
Type: Research Article
ISSN: 1759-0833

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Article
Publication date: 31 May 2023

Khalil Hussain, Muhammad Shahzeb Fayyaz, Amjad Shamim, Amir Zaib Abbasi, Sana Jawed Malik and Muhammad Farrukh Abid

This study aims to investigate consumer brand loyalty toward halal cosmetics using the theory of planned behavior through repurchase intention, which is primarily relying on the…

3473

Abstract

Purpose

This study aims to investigate consumer brand loyalty toward halal cosmetics using the theory of planned behavior through repurchase intention, which is primarily relying on the consumer’s attitude toward halal cosmetics. Important predictors such as trust on halal cosmetics, quality of halal cosmetics and religious beliefs of millennial Muslim female consumers shape consumer attitude.

Design/methodology/approach

The present study used the quantitative research design and deductive approach to collect the data from 275 halal cosmetics users in Pakistan by using a judgmental sampling approach.

Findings

Findings of the study provide useful insights for both theory and practice. The results support product quality, religious belief and trust on halal cosmetics as predictors of consumer’s attitude toward halal cosmetics that further develop consumers’ repurchase intention, which in turn enhances their overall brand loyalty. Besides, the findings also show that consumer repurchase intention has a mediating effect between consumer attitude toward halal cosmetics and consumer brand loyalty.

Practical implications

The current study helps in advancing practitioners’ understanding of female consumers’ brand loyalty in the halal cosmetics context. This study is considered to be greatly helpful for managers to gain knowledge about how repurchase intention and brand loyalty of millennial Muslim female consumers can be developed in the halal cosmetics segment, especially in the case of Pakistan.

Originality/value

Brand loyalty has been investigated by previous studies through different predictors and antecedents. This study contributes to the literature of brand loyalty by empirically examining and validating the different antecedents of consumer attitude that are accountable for creating consumer brand loyalty in the domain of halal cosmetics within the Pakistani cultural context. The current study also enhances the previous scholarly understanding on halal cosmetics by investigating the mediating role of consumer repurchase intention of halal cosmetics that further extends the discussion for both theory and practice.

Details

Journal of Islamic Marketing, vol. 15 no. 2
Type: Research Article
ISSN: 1759-0833

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Article
Publication date: 11 July 2020

P. Sudarsana Reddy and P. Sreedevi

Steady-state mixed convection boundary layer flow, heat and mass transfer characteristics of Buongiorno's model nanofluid over an inclined porous vertical plate with thermal…

113

Abstract

Purpose

Steady-state mixed convection boundary layer flow, heat and mass transfer characteristics of Buongiorno's model nanofluid over an inclined porous vertical plate with thermal radiation and chemical reaction are presented in this analysis.

Design/methodology/approach

The governing nonlinear partial differential equations represent the flow model that can be converted into system of nonlinear ordinary differential equations using the similarity variables and are solved numerically using finite element method.

Findings

The rates of nondimensional temperature and concentration are both decelerate with the higher values of thermophoresis parameter (Nt).

Originality/value

The work carried out in this paper is original.

Details

Multidiscipline Modeling in Materials and Structures, vol. 17 no. 2
Type: Research Article
ISSN: 1573-6105

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Article
Publication date: 2 February 2023

Tahir Naseem and Azeem Shahzad

The purpose of this study is to examine the flow and heat transfer performance of titanium oxide/water and copper/water nanofluids with varying nanoparticle morphologies by…

110

Abstract

Purpose

The purpose of this study is to examine the flow and heat transfer performance of titanium oxide/water and copper/water nanofluids with varying nanoparticle morphologies by considering magnetic, Joule heating and viscous dissipation effects. Furthermore, it studies the irreversibility caused by the flow of a hydromagnetic nanofluid past a radiated stretching sheet by considering different shapes of TiO2 and Cu nanoparticles with water as the base fluid.

Design/methodology/approach

In this study, the authors investigated entropy production in an unsteady two-dimensional magneto-hydrodynamic nanofluid regime using water as the base fluid and five unique TiO2 and Cu nanoparticle morphologies. Using appropriate similarity transformations, the controlling nonlinear system of partial differential equations is transformed into a system of ordinary differential equations. The shooting technique with Runge–Kutta method was then used to solve these equations quantitatively. The findings of this study are depicted graphically, and the skin friction corresponding to various nanoparticle geometries and physical parameter variations is tabulated.

Findings

To assess the reliability of the current findings, a tabular representation of the data was compared to that of previously published studies. It is noted that a reduction in thermal energy was detected as a result of the higher levels of Prandtl number (Pr). It is further analysed that the highest heat energy generation of TiO2 nanoparticles was larger than that of Cu nanoparticles. The most important finding was that the sphere-shaped Cu/H2O nanofluid had the lowest velocity and greatest temperature. Also, Cu nanoparticles in the shape of platelets generate the most entropy, while TiO2 nanoparticles in the shape of spheres generate the least.

Originality/value

To the best of the knowledge of the authors, the attempt to investigate the previously unexplored shape effects of TiO2 and Cu nanoparticles on the heat transfer enhancement and inherent irreversibility caused by hydromagnetic nanofluid flow past a radiated stretching sheet with magnetic, Joule heating and viscous dissipation effects. This study fills this gap in the existing literature and encourages scientists, engineers and businesses to do more research in this area. This model can be used to improve heat transfer in systems that use renewable energy, thermal management in industry and the processing of materials.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 33 no. 6
Type: Research Article
ISSN: 0961-5539

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Article
Publication date: 6 December 2022

M.M. Bhatti, Sadiq M. Sait, R. Ellahi, Mikhail A. Sheremet and Hakan Oztop

This study aims to deal with entropy generation and thermal analysis of magnetic hybrid nanofluid containing silver and gold as nanoparticles (Au-Ag/NPs) in the Eyring–Powell…

152

Abstract

Purpose

This study aims to deal with entropy generation and thermal analysis of magnetic hybrid nanofluid containing silver and gold as nanoparticles (Au-Ag/NPs) in the Eyring–Powell fluid.

Design/methodology/approach

The blood is used as a base fluid to study the rheological effects in a wavy asymmetric channel. The effect of viscous dissipation is also taken into account. The mathematical model is developed using the lubrication technique. The perturbation method is used to solve the nondimensional nonlinear differential equations, whereas the pumping properties have been analyzed using numerical integration.

Findings

The impact of entropy generation, Brinkman number, Hartmann number, nanoparticles volume fraction, thermal Grashof number, Brinkman number and Eyring–Powell fluid parameter is examined on the velocity profile, temperature profile and pumping characteristics. It is observed that the introduction of gold and silver nanoparticles boosts the velocity field in a smaller segment of the channel. The temperature profile rises for the increasing values of Hartmann number, Brinkman number and nanoparticle volume fractions while the temperature profile is restrained by the Eyring–Powell fluid parameter. The pumping rate rises in all sections as the thermal Grashof number and Hartmann number increase; however, the Eyring–Powell fluid parameter has the reverse effect. The volume of the trapping boluses is significantly affected by the Eyring–Powell fluid parameter, thermal Grashof number and fluid parameter.

Originality/value

The results are original and contribute to discover the role of hybrid nanoparticles under the influence of entropy generation viscous dissipation and magnetic fields. Pharmaceutical technology may use this research for things like better mucoadhesive drug delivery systems and more productive peristaltic micropumps.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 33 no. 5
Type: Research Article
ISSN: 0961-5539

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Article
Publication date: 13 September 2023

Nurul Amira Zainal, Najiyah Safwa Khashi'ie, Iskandar Waini, Abdul Rahman Mohd Kasim, Roslinda Nazar and Ioan Pop

The evaluation of high thermal efficiency has actively highlighted the unique behaviour of hybrid nanofluid. Thus, the purpose of this paper is to emphasize the hybrid nanofluid’s…

67

Abstract

Purpose

The evaluation of high thermal efficiency has actively highlighted the unique behaviour of hybrid nanofluid. Thus, the purpose of this paper is to emphasize the hybrid nanofluid’s stagnation point in three-dimensional flow with magnetic field.

Design/methodology/approach

The defined ordinary differential equations systems are addressed using the bvp4c solver.

Findings

The results indicate that using dual solutions is possible as long as the physical parameters remain within their specified ranges. Hybrid nanofluid flow has been recognised for its superior heat transfer capabilities in comparison to both viscous flow and nanofluid flow. Furthermore, it has been demonstrated in the current study that augmenting the volume concentration of nanoparticles leads to a corresponding enhancement in the rate of heat transfer. When the velocity gradients ratio is augmented, there is a corresponding reduction in the thermal performance. The separation value grows as the magnetic parameter rises, which signifies the expansion of the boundary layer.

Originality/value

The originality of the paper highlights the general mathematical hybrid model of the three-dimensional problem with the magnetohydrodynamics (MHD) effect in the stagnation point flow. The comprehensive examination of the suggested model has not yet been thoroughly addressed in prior research.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 33 no. 12
Type: Research Article
ISSN: 0961-5539

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Article
Publication date: 14 October 2021

Naveed Imran and Maryiam Javed

Particular attention is given to the viscous damping force parameter, stiffness parameter, rigidity parameter, and Brinkman number and plotted their graph for thermal…

72

Abstract

Purpose

Particular attention is given to the viscous damping force parameter, stiffness parameter, rigidity parameter, and Brinkman number and plotted their graph for thermal distribution, momentum profile and concentration profile.

Design/methodology/approach

In the field of engineering, biologically inspired propulsion systems are getting the utmost importance. Keeping in view their developmental progress, the present study was made. The theoretical analysis explores the effect of heat and mass transfer on non-Newtonian Sisko fluid with slip effects and transverse magnetic field in symmetric compliant channel. Using low Reynolds number, so that the authors neglect inertial forces and for keeping the pressure constant during the flow, channel height is used largely as compared to the ratio of wavelength. The governing equations of fluid flow problem are solved using the perturbation analysis.

Findings

Results are considered for thickening, thinning and viscous nature of fluid models. It is found that the velocity distribution profile is boosted for increasing values of the Sisko fluid parameter and porous effect, while thermal profile is reducing for Brinkman number (viscous dissipation effects) for all cases. Moreover, shear-thicken and shear-thinning behavior of non-Newtonian Sisko fluid is also explained through the graphs.

Originality/value

Hear-thicken and shear-thinning behavior of non-Newtonian Sisko fluid is also explained through the graphs.

Details

Multidiscipline Modeling in Materials and Structures, vol. 17 no. 6
Type: Research Article
ISSN: 1573-6105

Keywords

Available. Open Access. Open Access
Article
Publication date: 23 September 2024

Prabhugouda Mallanagouda Patil, Bharath Goudar and Ebrahim Momoniat

Many industries use non-Newtonian ternary hybrid nanofluids (THNF) because of how well they control rheological and heat transport. This being the case, this paper aims to…

374

Abstract

Purpose

Many industries use non-Newtonian ternary hybrid nanofluids (THNF) because of how well they control rheological and heat transport. This being the case, this paper aims to numerically study the Casson-Williamson THNF flow over a yawed cylinder, considering the effects of several slips and an inclined magnetic field. The THNF comprises Al2O3-TiO2-SiO2 nanoparticles because they improve heat transmission due to large thermal conductivity.

Design/methodology/approach

Applying suitable nonsimilarity variables transforms the coupled highly dimensional nonlinear partial differential equations (PDEs) into a system of nondimensional PDEs. To accomplish the goal of achieving the solution, an implicit finite difference approach is used in conjunction with Quasilinearization. With the assistance of a script written in MATLAB, the numerical results and the graphical representation of those solutions were ascertained.

Findings

As the Casson parameter β increases, there is an improvement in the velocity profiles in both chord and span orientations, while the gradients Re1/2Cf,Re1/2C¯f reduce for the same variations of β. The velocities of Casson THNF are greater than those of Casson-Williamson THNF. Approximately, a 202% and a 32% ascension are remarked in the magnitudes of Re1/2Cf and Re1/2C¯f for Casson-Williamson THNF than the Casson THNF only. When velocity slip attribute S1 jumps to 1 from 0.5, magnitude of both F(ξ,η) and Re1/2Cf fell down and it is reflected to be 396% at ξ=1, Wi=1 and β=1. An augmentation in thermal jump results in advanced fluid temperature and lower Re1/2Nu. In particular, about 159% of down drift is detected when S2 taking 1.

Originality/value

There is no existing research on the effects of Casson-Williamson THNF flow over a yawed cylinder with multiple slips and an angled magnetic field, according to the literature.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 34 no. 12
Type: Research Article
ISSN: 0961-5539

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