Partial replacement of Portland cement with Class C fly ash can alter concrete compressive behaviour, but the response may differ by concrete grade and replacement level. This study assessed compressive strength and damage evolution in a defined set of numerical concrete-cube mod...
Open access
Research Article10.9734/ajarr/2026/v20i111503
Semi-arid India holds a large stock of water harvesting structures that no longer work. The usual explanations for their condition, namely rainfall, structure age, and the supposed superiority of modern over traditional designs, account for that condition poorly. This paper asks...
Open access
Research Article10.9734/ajarr/2026/v20i111504
Background: Craniofacial fibrous dysplasia is a benign fibro-osseous disorder characterized by the replacement of normal bone with abnormal fibrous and osseous tissue. In children, involvement of the craniofacial skeleton may produce progressive facial deformity and functional im...
Open access
Research Article10.9734/ajarr/2026/v20i111502
Growing interest in renewable feedstocks has encouraged the chemical modification of vegetable oils for potential use in polymeric materials. Walnut oil contains unsaturated fatty acids that provide reactive carbon–carbon double bonds suitable for epoxidation. This report describ...
Open access
Research Article10.9734/ajarr/2026/v20i111500
Electromagnetic interference shielding in compact wireless systems requires the quantitative separation of material attenuation, fixture response and device-level effects. This methodological study combines a classical transfer-matrix model for idealised stratified media with a r...
Open access
Research Article10.9734/ajarr/2026/v20i111501
Portland cement is widely used, but its cost and environmental impact have prompted interest in alternative materials for producing low-cost masonry units, including laterite bricks. The aim of this study is to investigate engineering properties of laterite bricks incorporating c...
Open access
Research Article10.9734/ajarr/2026/v20i111498
Background: Overweight and obesity may contribute to hypertensive disorders of pregnancy, but age-specific patterns among affected women outside Sierra Leone’s capital remain insufficiently described. This study examined body mass index (BMI) among women with pregnancy-induced hy...
Open access
Research Article10.9734/ajarr/2026/v20i111499
Background: Brief exit-survey appraisals may indicate whether graduates perceived instructors as accommodating or helpful without specifying the assistance described. Objective: This study characterised the forms, encounter characteristics, and explanatory specificity of instruct...
Open access
Research Article10.9734/ajarr/2026/v20i111496
Multimodal artificial intelligence (AI) combines behavioural, linguistic, physiological, questionnaire and contextual signals to identify depression or anxiety. Although reported discrimination is frequently promising, diagnostic accuracy, transportability and clinical benefit re...
Open access
Research Article10.9734/ajarr/2026/v20i111497
Background: Physical and material conditions can support early childhood learning, but the availability of individual resources does not necessarily indicate a complete learning environment. Aim: This study assessed selected learning-environment conditions in Anganwadi Centres in...
Open access
Research Article10.9734/ajarr/2026/v20i111495