Umm al-Qura University

Quad port MIMO antenna design for WLAN and N78 application using regression machine learning validation

This paper presents the design and analysis of a compact four-port MIMO antenna intended for 5G communication systems, specifically targeting the n78 band (3.5 GHz) and the WLAN band (5.25 GHz). The proposed antenna has dimensions of 88.2 mm × 88.2 mm (1.03λ 0 × 1.03λ 0 ). It ach...

Innovative development of an advanced machine learning modeling for predicting compressive strength of graphene-infused concrete: a SHAP and PDP approach

The quasi-brittle response of cementitious materials continues to limit their structural efficiency, necessitating advanced reinforcement strategies. While conventional fibers improve mechanical performance, the emergence of graphene-based nanomaterials offers new opportunities t...

Tailored novel nanocomposites for advanced elimination of methylene blue dye from water

Novel SrCO 3 /CuO/MgO/C (Abbreviated as CSM600) and SrCO 3 /CuO/MgO/Sr 2 CuO 2 CO 3 /Cu 2 SrO 3 /SrCuO 2 /C (Abbreviated as CSM800) multiphase nanocomposites were successfully synthesized through a Pechini sol–gel route followed by calcination at 600 and 800 °C. Structural analys...

Phytochemical profile and in vitro antimicrobial, antiviral, and anticancer activities of Echium angustifolium ethanolic extract

Echium angustifolium is traditionally valued for its therapeutic properties; yet comprehensive studies on its biological activities are limited. Aerial flowering parts were sequentially extracted with solvents of varying polarity. Extracts were analyzed for yield, phytochemical c...

Protective Effects of Prenatal Bacopa monnieri Extract Against Valproic Acid-Induced Autism-like Behavioral and Neurohistological Alterations in Mice

Autism spectrum disorder (ASD) is a neurodevelopmental condition characterized by impaired social communication and repetitive behaviors. Oxidative stress is increasingly recognized as a key contributor to the neuro-degeneration and behavioral abnormalities associated with ASD. B...

A numerical study of non-Newtonian blood-based hybrid nanofluid flow over a stretching cylinder with Cattaneo–Christov heat flux and homogeneous heterogeneous reactions

Non-Newtonian hybrid nanofluids have attracted considerable attention in biomedical and industrial thermal systems because of their superior heat transfer performance and complex transport characteristics. In particular, blood-based hybrid nanofluids containing copper (Cu) and al...

Evaluating the Role of MIA3 Variant rs17465637 in Coronary Artery Disease: A Comprehensive Case–Control Analysis

Objectives: Coronary artery disease (CAD) remains a leading cause of morbidity and mortality worldwide, yet population-specific evidence regarding the contribution of MIA3 genetic variation in Middle Eastern populations remains limited. This study investigated the association of...

Lipid accumulation product (LAP): a key indicator for metabolic dysregulation and inflammatory status in obesity

The Lipid Accumulation Product (LAP) is recognized as an indicator of lipid-induced cellular stress. While its predictive value for conditions like diabetes, liver disease, and metabolic syndrome is established, its specific correlations with individual metabolic and hematologica...

Spatially-integrated Ancestry Polygenic Risk Mapping for Diabetes: A Geographic-adjusted Genetic Scoring Framework

Abstract Background: Conventional polygenic risk scores (PRSs) often fail to capture geographic and ancestry-specific variation, limiting their predictive accuracy in admixed and globally diverse populations. This study aims to develop a spatially-aware PRS (SA-PRS) framework tha...

Synthesis, modelling, biological activity of new thiophene hybridized with pyrazole, and/or pyridine analogues as potential DNA gyrase and topoisomerase IV inhibitors

Promoted by the well-established, valuable biological activity of thiophene-based hybrids, the study displayed the synthesis of two series of thiophene-pyrazole hybrids, 7a-c and thiophene-pyridine hybrids 9a-c, via reacting arylhydrazone with halogenated reagents and nucleophili...

Resolution of severe autoimmune hemolytic anemia and thrombocytopenia associated with Plasmodium vivax malaria without corticosteroid therapy: A case report

Rationale: Autoimmune hemolytic anemia is a rare but potentially life-threatening complication of Plasmodium vivax malaria. Most reported cases required corticosteroid therapy in addition to antimalarial treatment. Patient concerns: We report the case of a 28-year-old Ethiopian m...