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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.

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.

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.

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.

Research support services (RSS) is an emerging and popular area in university libraries, whose increasing importance has been well documented since the early 2010s. This study aims to identify the status of RSS provided in the university libraries of Pakistan and to compare the results with relevant international studies. The research also reports on the perception of librarians regarding the application of RSS in Pakistani university libraries.

A quantitative survey was conducted of the chief librarians/head librarians working in the 175 university libraries of Pakistan. A structured questionnaire was designed and pre-tested with national and international research experts, faculty members and library professionals. SPSS was used to calculate descriptive statistics. Results of the study were compared with previous literature from an international perspective.

Results of the study indicated that most of the university libraries are providing basic RSS and that they have good collections of both general and subject-specific works to meet the needs of researchers. Most respondents not only were interested in providing RSS but also emphasized that libraries should upgrade their collection to meet researchers’ requirements. However, results of the study also indicated that there was noticeably less support for both the more advanced and newer research support services.

Because the delivery of RSS enables libraries to help meet a university’s strategic research goals, the findings will be of interest to university library and information science executives, policymakers and administration. The suggested recommendations highlight those service areas which are most in need of improvement.

This research provides an updated perspective on the delivery of research support services by university libraries in Pakistan.

Improving the quality of life of the masses is the prime objective of all policymakers of both developed and developing countries. However, the determinants of improved quality of life are not well explored in the empirical literature. This study has, therefore, tried to identify the determinants of quality of life by focusing on military expenditures.

Panel data from 1990 to 2017 are collected from internationally reliable sources for the Association of Southeast Asian Nation (ASEAN hereafter) member countries, and suitable econometric techniques are employed to estimate the designed models.

The results show that military expenditures have affected the quality of life of the ASEAN member countries both negatively and significantly. Similarly, the inflation rate has also negatively affected the quality of life. In terms of magnitude, the negative impact of the inflation rate on quality of life has exceeded than the impact of military expenditures. On the other hand, trade openness, per capita income, urbanization and government expenditures have played a positive and significant role in improving the quality of life in the ASEAN region. Moreover, it is found that the positive impact of per capita income on quality of life is highest among other determinants.

This study provided comprehensive evidence about the relationship between military expenditures and quality of life in the ASEAN context. Consequently, the ASEAN member economies will benefit a lot from the results of this study.

The African region has experienced relatively lower economic growth and higher outflow of migration over the years. The purpose of this research paper, therefore, is to focus on the African region to investigate whether or not there is any link between the poor economic growth and rising outflow of migration.

Empirical data spanning from 1990 to 2015 are collected from reliable sources for 41 countries belonging to the African region. Appropriate estimating methodology that controls for unobserved heterogeneity both across time and across countries, and endogeneity is employed.

The results revealed that the migration has adversely influenced the economic growth of the African region as a whole. The splitting of sample into male and female migration also reflected the fact that the unsatisfied economic growth of the African region could be explained by the ever rising migration level. Other determinants such as employment and growth of physical capital have helped the region in the growth journey. Human capital has not played a vital role in economic growth as it is adversely affected by migration. Further, the study found support for the positive impact of moderate inflation on economic growth. The obtained results are robust to alternative methodologies and hence would be beneficial for policymakers.

The present study provides for the first time comprehensive empirical evidence on the relationship between migration and economic growth by focusing on Africa. Therefore, this study would be of prime importance for policymakers.

Existing quantitative research demonstrates negatively impacted mental health outcomes for people detained in immigration removal centres (IRCs) in the UK. However, there is limited qualitative research on the phenomenology of life inside UK IRCs. The purpose of this paper is to explore the psychosocial stressors experienced by people in detention, the psychological impacts of being detained and the ways in which people express resilience and cope in detention.

In-depth interviews were conducted with nine people who had previously been held in UK IRCs. Interview transcripts were analysed using interpretative phenomenological analysis.

Participants experienced incredulity and cognitive dissonance at being detained, and found themselves deprived of communication and healthcare needs. These stressors led participants to feel powerless, doubt themselves and their worldviews, and ruminate about their uncertain futures. However, participants also demonstrated resilience, and used proactive behaviours, spirituality and personal relationships to cope in detention. Antonovsky’s (1979) theory on wellbeing – sense of coherence – was found to have particular explanatory value for these findings.

The sample of participants used in this study was skewed towards male, Iranian asylum seekers, and the findings therefore may have less applicability to the experiences of females, ex-prisoners and people from different geographical and cultural backgrounds.

This study offers a range of new insights into how detention in the UK impacts on people’s lives. The findings may be useful to policy makers who legislate on and regulate the UK immigration detention system, as well as custodial staff and health and social care practitioners working in IRCs.

Reducing construction waste generation and carbon emission in the construction industry is crucial for the “dual carbon” goal. Evaluating the efficiency of reducing construction waste generation and carbon emission in the construction industry at the regional level is an important evaluation basis for the sustainable development of the construction industry. It provides a basis for formulating construction waste and carbon reduction policies tailored to local conditions and comprehensively promote the sustainable development of the construction industry.

A three stage SBM-DEA model based on non-expected outputs is proposed by combining the SBM-DEA model with the SFA method. The proposed model is used to evaluate the efficiency of construction waste and carbon reduction in the construction industry in 30 regions of China from 2010 to 2020. Moreover, the study explores the impact of environmental variables such as urbanization level, proportion of construction industry employees, resident consumption level, and technological progress.

From 2010 to 2020, the efficiency of construction waste and carbon reduction in China’s construction industry has been increasing year by year. Provinces with higher efficiency of construction waste and carbon reduction in the construction industry are mainly concentrated in the eastern coastal areas, showing an overall pattern of “East>West>Northeast>Middle”. There is a clear correlation between the level of urbanization, the proportion of construction industry employees, residents’ consumption level, technological progress, labor input, machinery input, and capital investment. The construction waste and carbon emission efficiency of the construction industry in various provinces is greatly influenced by environmental factors.

The research results provide policy makers and business managers with effective policies for reducing construction waste generation and carbon emission in the construction industry, especially circular economy policies. To provide empirical support for further understanding the connotation of construction waste and carbon reduction in the construction industry, to create innovative models for construction waste and carbon reduction, and to promote the multiple benefits of construction waste and carbon reduction in the construction industry, and to provide empirical support for countries and enterprises with similar development backgrounds in China to formulate relevant policies and decision-making.

The construction industry is a high investment, high energy consumption, and high pollution industry. This study uses the three stage SBM-DEA model to explore the efficiency of construction waste and carbon reduction in the construction industry, providing a new perspective for the evaluation of sustainable development in the construction industry, enriching and improving the theory of sustainable development.

The purpose of this paper is to study the effect of hydrogen (H₂) gas on the graphene growth from fruit cover plastic waste (FCPW) and oil palm fibre (OPF), as a solid feedstock, towards the coefficient of friction (COF) properties.

Graphene film growth on copper (Cu) substrate was synthesised from FCPW and OPF, as a solid feedstock, using the chemical vapour deposition (CVD) method, at atmospheric pressure. The synthesised graphene was characterised using Raman spectroscopy, Scanning Electron Microscopy (SEM) and Electron Dispersed Spectroscopy (EDS). Surface hardness and roughness were measured using a nano-indenter and surface profilometer, respectively. Then, a dry sliding test was executed using a ball-on-disc tribometer at constant speed, sliding distance and load, with coated and uncoated copper sheet as the counter surface.

The presence of H₂ gas reduced the running-in time of the dry sliding test. However, there is no significant effect at the constant COF region, where the graphene growth from FCPW shows the lowest COF among other surfaces.

This paper is limited to graphene growth using the CVD method with selected parameters.

To the authors’ knowledge, this is the first paper on growing graphene from palm oil fiber via the CVD method and its subsequent analysis, based on friction coefficient properties.

The purpose of this study is to assess customers’ perceptions of Islamic banks (IBs) of customers who have used or intend to use Ijarah service to purchase a car. The study further examines the mediating role of clarity and accuracy (CAA) of service offered between customer perceptions and customer satisfaction. This paper focuses on connecting in quantitative terms customers’ perceptions of IB services to customer satisfaction by providing the first evidence of this relationship in the context of car Ijarah financing.

In this paper, a model is proposed to assess customers’ perceptions of the Ijarah service used by IBs to finance car purchases. The model connects customers’ perceptions to customer satisfaction with this Shariah-compliant service. The data are drawn from 300 randomly selected customers living in five major cities in Pakistan, and factor analysis and structural equation modeling are used to understand the patterns of correlation/covariance among a set of variables and to evaluate customers’ perceptions of Ijarah financing for car purchases.

The results of the study show a significant positive relationship between customers’ perceptions and customer satisfaction. In particular, the CAA of the services provided is a significant predictor of customer satisfaction. This paper finds that CAA is a partial mediator between customers’ perceptions and customer satisfaction.

As this study is based on only one country and one simple car Ijarah financing product, the results cannot be generalized to the entire industry. Therefore, deeper research is needed in which data from other countries are used and a range of models and approaches are applied to secure knowledge about the multinational and multifactor variations of Ijarah financing.

In terms of their implications for IBs, the study results provide a basis for the banks to more effectively cater to their customers by improving the services offered in line with customers’ expectations and thereby increasing profitability. This investigation is much needed in academia and industry because the market share for Ijarah financing is growing and competition between IB products and conventional banking products is increasing.

This study presents the first endeavor to use exploratory factor analysis, confirmatory factor analysis and structural equation modeling to assess customer satisfaction in Ijarah financing using Pakistani banking clients’ data. This approach is also applicable to various IB financial products and Shariah contracts.

Corporate social responsibility (CSR) has gained tremendous importance after several corporate scandals, financial crises and the rise of the hyper-competitive world. Firms must address multiple stakeholders’ interests to increase firm value. This study aims to investigate the effect of CSR on firm value. This study also examines the mediating role of enterprise risk management (ERM) and the moderating influence of corporate governance (CG) in this CSR-firm value relationship.

The sample of the study comprises 119 Pakistan Stock Exchange (PSX) listed firms and the study covers the period from 2010 to 2021. The corporate social responsibility performance has been quantified across five dimensions. These aspects are product, environment, employee relations, diversity and community. Four proxies i.e. strategy, operation, reporting and compliance, have been used to measure ERM. The governance quality of the sample companies was evaluated using the governance index, which included 29 governance provisions. The authors used the dynamic panel data technique (system-GMM) is used to achieve the objectives of the study. Furthermore, a firm’s engagement in CSR activities can also be measured through a multinational financial approach to check the robustness of the result.

Based on the regression analysis, the authors discovered that CSR was positively connected with firm value, validating the stakeholder view of CSR. Furthermore, following Baron and Kenny’s (1986) mediation technique, the findings confirm that ERM mediates this association. These results are robust by using the bootstrapping tests by Preacher and Hayes (2004). Furthermore, the result shows that corporate governance (CG) is positively connected with firm performance, and this relationship is strengthened in the presence of an effective governance system in the organization.

This study provides useful insights to regulators, investors and policymakers to consider CSR as a value-enhancing factor and encourage the development of enterprise risk management and compliance with CG mechanisms to improve firm value.

The presented analysis strengthens the existing CSR–firm value relationship by analyzing the mediating and moderating roles of ERM and CG, which have not yet been tested, particularly in the context of Pakistan.

The purpose of this paper is to measure the unidimensional and multidimensional inequality in the case of Pakistan and compare their results at the provincial as well as regional (urban and rural areas) level. The authors collected data from Pakistan Social and Living Standard Measurement and Household Integrated Economic Survey for fiscal years of 1998–1999 and 2013–2014.

The authors used Gini coefficient for unidimensional inequality and multidimensional indexing approach of Araar (2009) for multidimensional inequality.

The findings predicted that unidimensional inequality is relatively high in the urban area due to uneven dissemination of income, but multidimensional inequality is quite high in rural areas because of higher disparities among all dimensions. At the provincial level, Punjab has relatively high-income inequality followed by Sindh, KPK and Baluchistan.

This study is a pioneering effort to compare two time periods to explore unidimensional and multidimensional inequality in all provinces of Pakistan and their representative rural-urban regions by applying Araar and Duclos’s (2009) approach. Further, this study opens some new insights for policy makers.