King Abdulaziz University

Pore structure and microstructural insights on higher heating value prediction for Indonesian low-rank coals: A multi-technique case study with cross-validated statistical assessment

Indonesian low-rank coals (LRCs) are a strategic energy resource, but their high moisture, oxygen-rich organic matrix, and heterogeneous pore-mineral architecture complicate higher heating value (HHV) prediction by classical correlations. This study addresses not which equation p...

Beaconing detection via timing-based flow metadata analysis: implications for SCADA/ICS

Supervisory Control and Data Acquisition (SCADA) and Industrial Control Systems (ICS) are critical to the continuity of modern industrial infrastructure. Cyberattacks targeting these systems can lead to serious consequences, including production losses, physical damage, and threa...

Bending analysis of circular plates under a refined Lord–Shulman fractional theory with variable thermal conductivity

This article examines the bending response of a circular plate under thermoelastic conditions using a refined Lord–Shulman fractional theory incorporating variable thermal conductivity. The analysis considers three theoretical frameworks: the simple classical thermoelasticity the...

Dose-Dependent and Route-Modulated Gastric Mucosal Injury Induced by Acrylamide: Histological, Ultrastructural, and Morphometric Evidence

Abstract Objective: Acrylamide is a heat-generated food contaminant, but its effects on distinct gastric epithelial cell populations remain incompletely characterized. The aim of this study was to determine whether acrylamide administered for 10 consecutive days at 25 or 50 mg/kg...

Association Between Cigarette Smoking and Carotid Plaque Stiffness Assessed Using Ultrasound Shear-Wave Elastography

Background: Cigarette smoking alters carotid plaque composition. Two-dimensional ultrasound shear-wave elastography (2D-SWE) is a promising non-invasive imaging technique for quantifying plaque stiffness. This prospective study aimed to determine whether carotid plaque stiffness...

Incidental cone-beam computed tomography diagnosis of pre-eruptive intracoronal resorption in an impacted maxillary third molar: a case report

Pre-eruptive intracoronal resorption (PEIR) is an odontoclast-mediated process that develops in the coronal dentine of an unerupted tooth, beneath radiographically intact enamel. Because it causes no symptoms, it is usually detected incidentally on radiographic examination. Altho...

CFD-Driven Passive Cooling and Renewable Retrofits for Nearly Net-Zero University Buildings in a Hot–Humid Climate

Achieving net-zero energy and zero-emission buildings is a critical pathway toward decarbonizing the built environment, particularly in cooling-dominated regions where operational energy demand remains exceptionally high. Existing university buildings in hot–humid climates face s...

Orthodontic knowledge and referral patterns among non-orthodontic dental providers in Saudi Arabia: a cross-sectional study

Non-orthodontic dental providers are often the first to identify malocclusion and initiate referrals to orthodontists. Therefore, their orthodontic knowledge may be an important determinant of timely orthodontic care. This study aimed to assess orthodontic knowledge and referral...

Meta-attention fusion and adaptive optimization for explainable diagnosis of acute lymphoblastic leukemia in blood smears

The handling of acute lymphoblastic leukemia (ALL) which is the most common malignancy in children, depends on a prompt and precise diagnosis. Conventional techniques, such as bone marrow aspiration followed by flow cytometry, provide reliable results but have serious limitations...

Comparative efficacy and safety of intra-articular versus intravenous tranexamic acid in primary total knee arthroplasty: a systematic review and meta-analysis

Total knee arthroplasty (TKA) is frequently associated with considerable perioperative and postoperative blood loss, making tranexamic acid (TXA) a key component of modern blood-sparing protocols. Although both intravenous (IV) and intra-articular (IA) routes are widely used, the...

Latest advancements in nanofiber fabrication and drug delivery, pondering tissue‐engineered scaffolds: current status and future challenges

Abstract Transformative platforms in the pharmaceutical sciences include nanofiber‐based drug delivery systems, engineered to overcome the limitations of conventional methods. Their remarkable properties, such as high surface area, tunable porosity and biomimetic architecture, ma...

Toward Green 6G Networks: NOMA-Based Reconfigurable Intelligent Surfaces with Hybrid Acoustic–Magnetic Energy Harvesting

This work introduces a novel self-sustainable wireless communication architecture that combines RIS and NOMA with a hybrid acoustic–magnetic energy harvesting framework. The source node operates under strict energy constraints and is powered by harvesting ambient acoustic vibrati...

Seafood Safety Assessment of Heavy Metals in Commercial Marine Species Purchased in Jeddah, Saudi Arabia: Implications for Non-Carcinogenic Risks

This study assessed the concentrations of Cd, Pb, Cu, Zn, Ni, Cr, Mn, and Fe in edible tissues of seven commercially important seafood species purchased from the central fish market in Jeddah, Saudi Arabia. Metal concentrations differed significantly among species (p < 0.05). Mea...

Bayesian reliability analysis of Weibull data from multiple facilities under a new block unified hybrid censoring scheme

Abstract In terms of block sample methodology, this paper introduces a new block censoring scheme called block unified hybrid censoring. This block plan can be considered as a generalized censoring scheme for some existing block censoring schemes, such as block Type-II censoring...

Influenza vaccine uptake, willingness, and reasons for non-vaccination among South African Hajj pilgrims in 2025

Influenza is a leading cause of morbidity at the annual Hajj pilgrimage, yet vaccination uptake among pilgrims varies across settings. This study assessed influenza vaccination uptake, willingness to accept vaccination before Hajj, and factors associated with vaccine hesitancy am...

The potential use of traditional singing and dancing for respiratory health promotion in Saudi Arabia: an observational study

Singing is the production of musical tones with the voice. Like breathing, it requires breath control and uses many of the same anatomical structures. This universal human behaviour has been practiced for thousands of years in various cultural contexts, including religious ceremo...

Comparative effectiveness of biologic therapies for preventing asthma exacerbations in severe asthma: a systematic review and network meta-analysis

The comparative effectiveness of biologic therapies for preventing exacerbations in severe asthma remains uncertain because no eligible direct head-to-head randomized comparisons were identified. We compared six biologic therapies using a network meta-analysis (NMA). This systema...

Prevalence of Delayed Healthcare Presentation and Associated Factors in Patients with Predominantly Mild Traumatic Brain Injury: A Systematic Review and Meta-Analysis

Background/Objectives: Traumatic brain injury (TBI) is a global burden and a leading cause of death and disability worldwide. Delayed healthcare presentation is significantly associated with poor outcomes. This systematic review and meta-analysis aim to estimate the prevalence of...

The crystal structure of N -(2-amino-phenyl)-2,5-dimethoxy-benzenesulfonamide

Abstract C 14 H 16 N 2 O 4 S, monoclinic, P 2 1 / n (no. 14), a = 13.5515(17) Å, b = 7.6268(11) Å, c = 14.980(2) Å, β = 100.200(12)°, V = 1523.8(4) Å 3 , Z = 4, R gt ( F ) = 0.0702, wR ref ( F 2 ) = 0.1953, T = 296(3) K.

Comparative larvicidal efficacy and phytochemical profiling of selected Solanaceous hexane extracts against Culex pipiens and Aedes aegypti

Abstract Mosquito-borne diseases pose a major global health burden, and the effectiveness of conventional insecticides is increasingly limited by resistance and environmental concerns. This study provides a comparative assessment of the larvicidal activity and phytochemical compo...