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INFLUENCE OF MEMORY EFFECTS ON HEAT AND MASS TRANSFER IN FRACTIONAL CASSON–BRINKMAN ELECTRICALLY CONDUCTING FLOW WITH RAMPED BOUNDARIES

Nadeem Ahmad Sheikh Zulkhibri Bin Ismail Ilyas Khan Zulkhibri Bin Ismail

Publication Name: Fractals

Publication Date: 2026-01-01

Volume: Unknown

Issue: Unknown

Page Range: Unknown

Description:

This work presents an analytical study of unsteady, one-dimensional magnetohydrodynamic flow of a Casson–Brinkman fluid over an infinite vertical plate, incorporating heat and mass transfer, internal heat generation, and a first-order chemical reaction. The plate velocity, temperature, and concentration are time-dependent, with ramped boundary conditions, and the governing equations account for a transverse magnetic field. Using Buckingham’s π-theorem, the model is nondimensionalized, introducing key parameters including the Grashof numbers, Hartmann number, Prandtl number, Schmidt number, Casson parameter, and Brinkman parameter. The classical Fourier and Fick laws are extended using the Caputo fractional derivative to capture memory effects, yielding a time-fractional model. The coupled fractional partial differential equations are solved analytically via Laplace transforms, and the effects of the fractional order and the physical parameters on the velocity, temperature, and concentration profiles are graphically analyzed. Results reveal that the fractional parameter significantly varies the heat and mass transfer profiles.

Open Access: Yes

DOI: 10.1142/S0218348X26500738

New development: E-government, open data and citizen participation for G20 sustainable development

Xin Zhao Xiaowei Ma Pardaev Jamshid Guoqing Zhai Mohamed Djafar Henni Pardaev Jamshid

Publication Name: Public Money and Management

Publication Date: 2026-01-01

Volume: Unknown

Issue: Unknown

Page Range: Unknown

Description:

IMPACT: This article examines how the development of e-government (EGDI), open data, and citizen participation (EPI) jointly influence the G20 countries in achieving the Sustainable Development Goals (SDGs). EGDI is shown to have a positive influence on progress towards delivering the SDGs. Data openness and EPI further strengthen this effect. The strongest impact emerges under conditions of simultaneous implementation. The findings offer actionable insights for public sector accountants, auditors, policy-makers, and digital government strategists concerned with digital reform and sustainable development.

Open Access: Yes

DOI: 10.1080/09540962.2026.2639622

Preface II

Vikas Sharma Attila Kurucz Ewelina Idziak Vikas Sharma José Braga de Vasconcelos

Publication Name: World Sustainability Series

Publication Date: 2026-01-01

Volume: Part F1269

Issue: Unknown

Page Range: ix

Description:

No description provided

Open Access: Yes

DOI: DOI not available

Enhancing urban solar photovoltaic system performance evaluation through a disc spherical fuzzy aggregation framework

Nebojsa Bacanin Dragan Pamucar Shahzaib Ashraf Muhammad Shakir Chohan Wania Iqbal Vladimir Simic

Publication Name: Journal of Computational Science

Publication Date: 2026-01-01

Volume: 93

Issue: Unknown

Page Range: Unknown

Description:

The integration of solar photovoltaic (PV) systems in urban environments promises great potential for sustainable energy applications. However, the unique characteristics of cities, the varieties of weather that occur at the place, and technology inefficiency make performance evaluation difficult. This paper sought to address the pressing need for a robust performance evaluation framework for urban solar PV systems by developing a disc spherical fuzzy aggregation framework. It develops basic algebraic aggregation operations in the framework of the disc spherical fuzzy set (D-SFSs), proving their completeness and describing their essential characteristics. These new operators conceived to operate on D-SFSs furnish theoretical robustness and provide the foundation for decisions made. A shining novel disc spherical fuzzy method is developed namely combinative distance-based assessment (CODAS) in D-SFS. A case study regarding the application of this model in the assessment of performance by urban solar PV systems is being conducted, thus proving the application aspect. Results come out positive in interpreting the decision-making dilemma and differences among several experts. This would, therefore, encourage various sectors to expand the use of D-SFSs in decision support systems and similar areas by showing how useful they can be in actual situations.

Open Access: Yes

DOI: 10.1016/j.jocs.2025.102758

E-GOVERNMENT DEVELOPMENT AND BUSINESS TRANSACTIONAL EXPENDITURE: CROSS-COUNTRY EVIDENCE ON INTEREST RATE SPREAD DISTORTIONS, LOGISTICS PERFORMANCE, AND SERVICES TRADE RESTRICTIVENESS

Larysa Hrytsenko Judit Oláh Serhiy Lyeonov Serhiy Lyeonov Andrej Macko

Publication Name: Economics and Sociology

Publication Date: 2026-01-01

Volume: 19

Issue: 1

Page Range: 195-223

Description:

Digital transformation of the public sector is increasingly relevant because it can reshape the costs firms face in finance, logistics, and cross-border service provision. This study investigates how e-government development and its human-capital, online-service, and telecommunication components influence interest rate spread distortions, logistics performance, and services trade restrictiveness across countries, and whether these effects are linear or non-linear. The analysis uses three unbalanced country panels covering 1,299 observations for 130 countries, 906 observations for 163 countries, and 306 observations for 51 countries, estimated with two-way fixed-effects models and Driscoll–Kraay standard errors, with robustness checks and quadratic specifications implemented in R. The results show that a 0.1-point increase in EGDI is associated with an approximately 0.45-point reduction in the absolute interest rate spread, while the robustness coefficient remains negative at-0.677. Human capital and telecommunication infrastructure are especially important in this dimension, with baseline coefficients of-3.921 and-1.910, respectively. In the logistics specification, aggregate EGDI is insignificant, but HCI is positive and significant (β = 0.372), and a 0.1-point increase in HCI raises the Logistics Performance Index by about 0.037 points. In the services-trade specification, EGDI reduces STRI by-0.095. At the same time, HCI shows a U-shaped effect with a turning point at 0.975, indicating that digital human capital lowers restrictiveness up to very high levels before the relationship turns upward.

Open Access: Yes

DOI: 10.14254/2071-789X.2026/19-1/10

Invisible burdens of platform work: a qualitative study of food-delivery riders’ lived experiences in urban India

Muhammad Shakil Ahmad Ashifa Kariveliparambil Alen Kuriakose Rasi R A Snega Ramesh Ashifa Kariveliparambil

Publication Name: International Journal of Qualitative Studies on Health and Well Being

Publication Date: 2026-01-01

Volume: 21

Issue: 1

Page Range: Unknown

Description:

Purpose: This study explored the lived experiences of food delivery riders in India’s platform economy, focusing on psychosocial, physical, and emotional challenges embedded in their daily work. It critically examines how precarity, emotional labor, and symbolic violence shape riders’ well-being. Methods: This study employed a qualitative phenomenological design. In-depth interviews were conducted with 10 food delivery riders from an urban district in South India, who participated anonymously. The data were analyzed using reflexive thematic analysis. Results: Surviving precision, embodied exhaustion, emotional discipline under surveillance, internalized struggles, and fragmented routines emerged as key themes. Participants described working under difficult climatic conditions and persistent physical pain, reflecting the precarious nature of platform-based delivery work. They also struggled to maintain constant politeness with customers while being monitored through algorithmic surveillance. This findings reveal significant psychosocial burdens, including physical strain, emotional fatigue, social withdrawal, experience of disrespect, internalization of blame, and economic insecurity. Conclusions: Platform work reinforces structural precarity, emotional suppression, and symbolic exclusion, profoundly shaping the health and well-being of food delivery workers. These findings highlight the need for policy reforms to protect gig workers’ mental health, dignity, and social inclusion, and advocating for the psychosocially sensitive governance of digital labor platforms.

Open Access: Yes

DOI: 10.1080/17482631.2026.2644577

Impact of heat and mass transfer in casson trihybrid nanofluid flow past an inclined cylinder, along with the effect of Soret and Dufour

Mustafa Inc Ilyas Khan M. Lakshmi N. Golden Stepha M. Lakshmi

Publication Name: Journal of Engineering Research Kuwait

Publication Date: 2026-01-01

Volume: Unknown

Issue: Unknown

Page Range: Unknown

Description:

The investigation of Casson trihybrid nanofluid flow and the heat and mass transfer properties on an inclined cylinder is related to the present study. Such an investigation encompasses the interaction among magnetohydrodynamics (MHD), porous-medium resistance, heat generation, thermal radiation, and cross-diffusion. The objective is to examine the body's parameters in relation to their influence on the transport process, and to compare water, hybrid nanofluid, and trihybrid nanofluid to establish the magnitude of improvement in thermal and mass transfer. Similarity transformations are then used to simplify the governing partial differential equations into a system of ordinary differential equations, and the results are obtained numerically using bvp4c, an inbuilt MATLAB solver. Previously published investigations and analyses support the model, and it is highly consistent with it. The results reveal that velocity decreases with the MHD Casson parameter, and the curvature parameter enhances the velocity distribution. Trihybrid nanofluids, blending multiple nanoparticles, deliver superior thermal conductivity and stronger convective heat transport than conventional formulations. Casson fluid behaviour and cylinder inclination together enhance mixed convection, while Soret and Dufour effects couple heat and mass transfer through cross-diffusion. From the comparative study of the base fluid, nanofluid, hybrid nanofluid, and trihybrid nanofluid, it can be concluded that the trihybrid nanofluid shows the most improvement in transport properties by yielding the highest skin-friction coefficient, Nusselt number, and Sherwood number. Thus, trihybrid nanofluids offer great potential for enhancing heat and mass transfer and can be used in more sophisticated thermal management systems and energy applications, including biomedical fluid transport.

Open Access: Yes

DOI: 10.1016/j.jer.2026.03.005

Analysis of Plane Poiseuille flow of non-isothermal couple stress fluid between two parallel inclined plates using two reliable methods

Ilker Ozsahin Rashid Nawaz Hijaz Ahmad Alamgeer Khan Muhammad Farooq Faisal Zia Waleed Mohammed Abdelfattah

Publication Name: International Journal of Thermofluids

Publication Date: 2026-01-01

Volume: 31

Issue: Unknown

Page Range: Unknown

Description:

This study is motivated by the need to understand complex thermal and hydrodynamic behaviors of couple stress fluids, which commonly occur in lubrication systems, microfluidic devices, and polymeric material processing. Its significance lies in modeling non-isothermal couple stress fluid flow through an inclined Poiseuille channel bounded by two heated parallel plates, a configuration relevant to advanced heat and mass transfer applications. The aim is to determine the velocity profile, temperature distribution, volumetric flow rate, average velocity, and shear stress for the incompressible fluid. To achieve this, the highly nonlinear coupled ordinary differential equations governing the system are solved using the Optimal Homotopy Asymptotic Method and the Homotopy Perturbation Method, which provide accurate approximate solutions without linearization. The major findings show excellent agreement between the two approaches, confirming their validity, while parametric studies reveal how physical factors such as couple stress effects, plate inclination, and thermal gradients influence the flow. The specific applications of this work include lubrication processes, thermal energy devices, and fluid transport systems requiring precise control of flow and heat transfer.

Open Access: Yes

DOI: 10.1016/j.ijft.2025.101520

Evolving Social Capital in Indigenous Communities: Perspectives on Trust, Reciprocity, and Cultural Preservation Among Irula Elders

Nail Öztaş Muhammad Shakil Ahmad Ashifa Kariveliparambil R. A. Rasi Fatma Sila Ayan

Publication Name: Journal of Social Service Research

Publication Date: 2026-01-01

Volume: 52

Issue: 1

Page Range: 147-166

Description:

This study investigates the transformation of social capital within the Irula tribal community in Tamil Nadu, India, focusing on how traditional practices and communal bonds adapt in the face of modernization, urban migration, and generational shifts. Adopting a qualitative phenomenological approach, ten Irula elders were selected using purposive and snowball sampling. Data were collected through semi-structured interviews conducted in the local language and analyzed using Braun and Clarke’s thematic analysis. Themes were derived inductively to ensure cultural and contextual sensitivities. Seven key themes emerged: trust and reciprocity, community engagement, inter-generational knowledge transmission, the impact of technology, resilience of social capital, redefinition of community, and cultural identity. The findings reveal that collective resilience persists during crises while everyday mutual aid and cultural exchange weaken. Social capital is not disappearing but reconfiguring—activated selectively based on needs and generational experience. This study extends classical social and cultural capital theories by situating them in an indigenous context. From this perspective, the significance of these studies for future research, applications, and services should be carefully evaluated. Practical implications emphasize the need for culturally embedded policies, intergenerational programmes, and digital tools to support continuity. This research affirms that tradition and change coexist, reflecting the adaptive nature of indigenous social structures in contemporary society. Future research could explore how digital platforms and participatory methods can be leveraged to enhance cultural transmission and strengthen intergenerational ties.

Open Access: Yes

DOI: 10.1080/01488376.2025.2579519