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The problems that face health service delivery across different countries are compounded by financial, political, institutional and technical deficiencies. Yet, the role of technological aspects in the procurement of health commodities and health service delivery system requires in-depth exploration. This study bridges this gap by examining the mediating effect of an integrated health commodities procurement system on the relationship between responsiveness and health service delivery.

Data for this study were collected from 274 respondents, comprising procurement staff and pharmacists using a cross-sectional questionnaire survey. A total of 28 government-owned hospitals from 6 regions in the Southern Highland of Tanzania were sampled for observation. Confirmatory factor analysis (CFA) and structural equation modelling (SEM) were used for data analysis.

The results of the study revealed a positive and significant relationship between responsiveness and integrated health commodities procurement system (β = 0.572, p < 0.001). Responsiveness positively and significantly affects health service delivery (β = 0.175, p = 0.004). The results also show that integrated health commodities procurement system is positive and significantly related to health service delivery (β = 0.264, p < 0.001). Lastly, the bootstrapping confidence intervals revealed that an integrated health commodities procurement system significantly mediates the relationship between responsiveness and health service delivery.

To strengthen the health service delivery system, the study recommends enforcing internal control mechanisms and supporting policies that will monitor and evaluate the effectiveness of the integrated health commodities procurement system and service practitioners' responsiveness. Moreover, health service managers should ensure that the planning, procurement and distribution of health commodities are fully and effectively integrated at each node of the health supply chain.

The study contributes to the body of knowledge which examines the efficacy of health service delivery from procurement perspective. To the best of the author's knowledge, this is the first study that offers empirical evidence for the mediating effect of integrated health commodities procurement system on the link between responsiveness and health service delivery.

The main purpose of this study is to test for the interaction effect of digital literacy in the relationship between financial technologies (FinTechs) of biometrics and mobile money and digital financial inclusion among the unbanked poor women, youth and persons with disabilities (PWDs) in rural Uganda.

Covariance-based structural equation modeling was used to construct the interaction effect using data collected from the unbanked poor women, youth and PWDs located in the four regions in Uganda as prescribed by Hair et al. (2022).

The findings from this study are threefold: first; the results revealed a positive interaction effect of digital literacy between FinTechs of biometrics and mobile money and digital financial inclusion. Second; the results also confirmed that biometrics identification positively promotes digital financial inclusion. Lastly; the results showed that mobile money positively promotes digital financial inclusion. A combination of FinTechs of biometrics and mobile money together with digital literacy explain 29% variation in digital financial inclusion among the unbanked poor women, youth and PWDs in rural Uganda.

The data for this study were collected mainly from the unbanked poor women, youth and PWDs. Further studies may look at data from other sections of the vulnerable population in under developed financial markets. Additionally, the data for this study were collected only from Uganda as a developing country. Thus, more data may be obtained from other developing countries to draw conclusive and generalized empirical evidence. Besides, the current study used cross sectional design to collect the data. Therefore, future studies may adopt longitudinal research design to investigate the impact of FinTechs on digital financial inclusion in the presence of digital literacy across different time range.

The governments in developing countries like Uganda should support women, youth, PWDs and other equally vulnerable groups, especially in the rural communities to understand and use FinTechs. This can be achieved through digital literacy that can help them to embrace digital financial services and competently navigate and perform digital transactions over digital platforms like mobile money without making errors. Besides, governments in developing countries like Uganda can use this finding to advocate for the design of appropriate digital infrastructures to reach remote areas and ensure “last mile connectivity for digital financial services' users.” The use of off-line solutions can complement the absence or loss of on-line network connectivity for biometrics and mobile money to close the huge digital divide gap in rural areas. This can scale-up access to and use of financial services by the unbanked rural population.

This paper sheds more light on the importance of digital literacy in the ever complex and dynamic global FinTech ecosystem in the presence of rampant cyber risks. To the best of the authors' knowledge, limited studies currently exist that integrate digital literacy as a moderator in the relationship between FinTechs and digital financial inclusion, especially among vulnerable groups in under-developed digital financial markets in developing countries. This is the novelty of the paper with data obtained from the unbanked poor women, youth and PWDs in rural Uganda.

The operations and viability of microfinance institutions (MFIs), crucial for socioeconomic development and poverty reduction, heavily rely on the multilevel relationships among borrowers, loan officers and MFIs. This study examines the relationship between interpersonal and firm-level relationship quality (RQ) and their simultaneous impact on customer loyalty (CL) in microfinance. Additionally, it investigates the mediating effect of firm-level RQ between CL and interpersonal RQ.

In this study, correlational research methods were employed. Completed questionnaires were received from 498 MFI borrowers in Dar es Salaam and Mwanza cities. Regression techniques and structural equation modeling were utilized to analyze the data. Before hypothesis testing, the validity and reliability of the measurements were confirmed.

Interpersonal-level and firm-level RQs are significantly related. Interpersonal-level RQ and its dimensions are significantly linked to CL, whereas firm-level RQ and its dimensions are insignificantly related to CL, except for commitment. Interpersonal-level relationships have a stronger impact on CL than firm-level relationships. Among all the dimensions of RQ, commitment has the greatest influence on CL at both levels. Firm-level RQ negatively and insignificantly mediates the relation between interpersonal-level RQ and CL.

The study findings only apply to Tanzania's microfinance industry, because the interactions between and the relative effects of firm and interpersonal ties may vary across various contexts and cultures. Future research may consider replicating this study in other contexts and cultures to confirm these findings.

This study advances the understanding of how multilevel relationships affect CL within the microfinance industry. This insight will assist MFIs and policymakers in identifying alternative and more efficient relational strategies to enhance CL, a critical element for the sustainability of MFIs. In turn, the sustainability of MFIs in low-income countries like Tanzania holds paramount importance for stimulating socioeconomic development and, hence, achieving the goal of poverty eradication.

While previous studies on multilevel relationships concentrated on a single relational dimension (trust) and were conducted within the realms of retail, airline and industrial manufacturing, the current study employs the three most popular relational dimensions: trust, commitment and satisfaction, within the microfinance context. Additionally, this study investigates the mediation effect of firm-level RQ between interpersonal-level RQ and CL, a previously unexplored area in research.

The purpose of this study is to investigate the moderation effects of religiosity in the relationship between service quality (SQ), customer satisfaction (CS), relationship quality (RQ) and Islamic banking (IB) loyalty in a non-Islamic country.

This study used a quantitative approach and a cross-sectional research design. The data was collected by a closed-ended questionnaire from a systematic sample of 267 customers of full-fledged Islamic banks in Tanzania. Structural equation modeling and regression analysis techniques were used to analyze the data.

Results indicate that religiosity is a significant (p < 0.05) moderator of the relationship between SQ and loyalty (β = 0.176), and between CS and loyalty (β = 0.263). However, religiosity sharpens the impact of CS on loyalty (β increases from 0.170 to 0.263, p < 0.05) and does not sharpen the impact of SQ on loyalty (β decreases from 0.338 to 0.176, p < 0.05). The results further indicate that religiosity is not a significant moderator (p > 0.05) in the link between RQ and loyalty (β = −0.112).

This study used only full-fledged Islamic banks in Tanzania. Therefore, future research could be undertaken by including conventional banks that have introduced an IB window.

To build and maintain a loyal customer base, Islamic banks should take advantage of religiosity by providing a wide range of Sharia-based products and services that truly distinguish them from conventional banks. Accordingly, policymakers should establish an appropriate legal framework to enable Islamic banks to leverage religiosity to sharpen the impact of CS on loyalty and hence maintain loyalty in non-Islamic countries like Tanzania.

This study proposes and validates the theoretical model of loyalty in IB by showing the role of religiosity as a moderator in a non-Islamic country. This knowledge strengthens the overall understanding of loyalty in IB. To the best of the authors’ knowledge, this study is the first to examine the moderation effects of religiosity in the link between RQ and loyalty, and thus between SQ, CS, RQ and loyalty in a single study.

This paper aims to investigation of processes for Pb²⁺ elimination from water/wastewater as a significant public health issue in many parts of world. The removal of Pb²⁺ ions by various nanocomposites has been explained from water/wastewaters. ZnO-based nanocomposites, as eco-friendly nanoparticles with unique physicochemical properties, have received increased attention to remove Pb²⁺ ions from water/wastewaters.

In this review, different ZnO-based nanocomposites were reviewed for their application in the removal of Pb²⁺ ions from the aqueous solution, typically for wastewater treatment using methodology, such as adsorption. This review focused on the ZnO-based nanocomposites for removing Pb²⁺ ions from water and wastewaters systems.

The ZnO-based nanocomposite was prepared by different methods, such as electrospinning, hydrothermal/alkali hydrothermal, direct precipitation and polymerization. Depending on the preparation method, various types of ZnO-based nanocomposites like ZnO-metal (Cu/ZnO, ZnO/ZnS, ZnO/Fe), ZnO-nonmetal (PVA/ZnO, Talc/ZnO) and ZnO-metal/nonmetal (ZnO/Na-Y zeolite) were obtained with different morphologies. The effects of operational parameters and adsorption mechanisms were discussed in the review.

The findings may be greatly useful in the application of the ZnO-based nanocomposite in the fields of organic and inorganic pollutants adsorption.

The present study is novel, because it investigated the morphological and structural properties of the synthesized ZnO-based nanocomposite using different methods and studied the capability of green-synthesized ZnO-based nanocomposite to remove Pb²⁺ ions as water contaminants.

The current review can be used for the development of environmental pollution control measures.

This paper reviews the rapidly developing field of nanocomposite technology.

Additive manufacturing (AM), a rapidly evolving paradigm, has shown significant advantages over traditional subtractive processing routines by allowing for the custom creation of structural components with enhanced performance. Numerous studies have shown that the technical qualities of AM components are profoundly affected by the discovery of novel metastable substructures in diverse alloys. Therefore, the purpose of this study is to determine the effect of cell structure parameters on its mechanical response.

Initially, a methodology was suggested for testing porous materials, focusing on static tensile testing. For a qualitative evaluation of the cellular structures produced, computed tomography (CT) was used. Then, the CT scanner was used to analyze a sample and determine its actual relative density, as well as perform a detailed geometric analysis.

The experimental research demonstrates that the mechanical properties of a cell’s structure are significantly influenced by its shape during formation. It was also determined that using selective laser melting to produce cell structures with a minimum single-cell size of approximately 2 mm would be the most appropriate method.

Further studies of cellular structures for testing their static tensile strength are planned for the future. The study will be carried out for a larger number of samples, taking into account a wider range of cellular structure parameters. An important step will also be the verification of the results of the static tensile test using numerical analysis for the model obtained by CT scanning.

The fabrication of metallic parts with different cellular structures is very important with a selective laser melted machine. However, the determination of cell size and structure with mechanical properties is quiet novel in this current investigation.

Natural convection in finite enclosures is a common phenomenon in various thermal applications. To provide the thermal design guidelines, this study aims to numerically explore the potential of using internal baffles and nanofluids to either enhance or suppress heat transport in a vertical annulus. Furthermore, the annular-shaped enclosure is filled with aqueous-silver nanofluid and the effects of five distinct nanoparticle shapes are examined. In addition, the influence of baffle design parameters, including baffle position, thickness and length, is thoroughly analyzed.

The finite difference method is used in conjunction with the alternating direction implicit and successive line over relaxation techniques to solve nonlinear and coupled partial differential equations. The single phase model is used for nanofluid which is considered as a homogeneous fluid with improved thermal properties. The independence tests are carried out for assessing the sufficiency of grid size and time step for obtaining results accurately.

The baffle dimension parameters and nanoparticle shape exhibit significant impact on the convective flow and heat transfer characteristics, leading to the following results: sphere- and blade-shaped nanoparticles demonstrate around 30% enhancement in the heat transport capability compared with platelet-shaped nanoparticles, which exhibit the least. When considering the baffle design parameter, either a decrease in the baffle length and thickness or an increase in baffle height leads to an improvement in heat transport rate. Consequently, a threefold increase in baffle height yields a 40% improvement in thermal performance.

Understanding the impact of nanoparticle shapes and baffle design parameters on flow and thermal behavior will enable engineers to provide valuable insight on thermal management and overall system efficiency. Therefore, the current work focuses on exploring buoyant nanofluid flow and thermal mechanism in a baffled annular-shaped enclosure. Specifically, an internal baffle that exhibits conductive heat transfer through it is considered, and the impact of baffle dimensions (thickness, length and position) on the fluid flow behavior and thermal characteristics is investigated. In addition, the current study also addresses the influence of five distinct nanoparticle shapes (e.g. spherical, cylindrical, platelet, blade and brick) on the flow and thermal behavior in the baffled annular geometry. In addition to deepening the understanding of nanofluid behavior in a baffled vertical annulus, the current study contributes to the ongoing advancements in thermal applications by providing certain guidelines to design application-specific enclosures.