King Saud University

A Residual Exogenous–Autoregressive Gated Forecasting Framework for Nonlinear Dynamic Time Series: Application to Hydrogen Sulfide Prediction

Multi-horizon forecasting of nonlinear dynamic time series with exogenous inputs is challenging when the target variable exhibits strong temporal persistence and the exogenous variables provide horizon-dependent corrective information. Direct forecasting models must learn both th...

Oxidative Stress-Associated Apoptotic Responses Induced by Lantana camara L. Flower–Derived Zinc Oxide Nanoparticles in Human Non-Small Cell Lung Cancer (NCI-H460) Cells

Lung cancer remains a leading cause of cancer-related mortality worldwide, underscoring the need for safer and more effective therapeutic strategies. In this study, zinc oxide nanoparticles (ZnO NPs) were synthesized via a green, biogenic approach using Lantana camara L. flower a...

Multivariate Regionalization of Rainfall Stations in Saudi Arabia Using Rainfall Concentration, Short-Duration Intensity, and Physiographic Descriptors

Reliable rainfall regionalization underpins hydrological design and the transfer of rainfall information to ungauged or short-record sites, yet it is especially difficult in arid regions with strong spatial and temporal variability and short, uneven records. This study develops a...

Experiences of Saudi Adults Living with Heart Failure: A Reflexive Thematic Analysis of Health-Related Quality of Life

Background: Heart failure is a chronic and progressive condition that substantially affects patients’ physical, emotional, social, and spiritual well-being. Although the clinical burden of heart failure is well documented, limited qualitative evidence exists regarding how Saudi a...

Fluorite‐Type Silsesquioxane‐Protected Cerium Cluster as Molecular Analog of Highly Reduced Nanoceria Fragment for Efficient Photocatalysis

ABSTRACT The surface oxygen vacancy defects generated from the abstraction of lattice oxygen atoms of bulk ceria accompanied by the reduction of Ce IV to Ce III , are considered to play a pivotal role in photocatalysis. As ideal molecular models of nanoceria, atom‐precise cerium‐...

A novel synergistic phycobiliprotein combination against HIV-1 shows potent antiviral activity

Human immunodeficiency virus type 1 (HIV-1) remains a major global public health challenge due to lifelong persistence, latency, and the emergence of drug resistance. Natural bioactive compounds are increasingly being explored as alternative or adjunct antiviral strategies. In th...

Hippopotamus optimization based control approach for performance enhancement of photovoltaic systems

Photovoltaic (PV) systems are widely integrated into the conventional power grid. It becomes a fundamental way for the energy landscape. One of the major challenges in deploying these technological resources is the grid’s instability. Therefore, enhancing the control strategy is...

Experimental investigation on the shear strength, consolidation and permeability characteristics of cross-linked biopolymer-stabilized soils

This study investigates the influence of guar gum (G), xanthan gum (X), and their cross-linked blend on the shear strength and consolidation characteristics of soils with contrasting plasticity and mineralogical characteristics. Direct shear, one-dimensional consolidation, consta...

Comparative analysis of cerium incorporation techniques on Ni/Al2O3 catalysts for methane dry reforming: Surface promotion vs. structural support modification

Two series of 5 wt.% Ni/Al 2 O 3 catalysts incorporating cerium (Ce) at loadings ranging from 1.0 to 3.0 wt.% were prepared by impregnation and subjected to systematic evaluation for the dry reforming of methane (DRM) at 700 °C. The two series were distinguished by the mode of Ce...

Nursing students’ attitudes toward caring for dying patients: a quantitative study

End-of-life care is a fundamental component of nursing practice; however, many nursing students report insufficient preparation, emotional discomfort, and a lack of confidence when caring for dying patients. Cultural and religious factors may further influence students’ attitudes...

A Low-Profile Circularly Polarized Metasurface MIMO Antenna with Enhanced Axial-Ratio Bandwidth for IoT Applications

This study develops and experimentally evaluates a low-profile four-port circularly polarized metasurface MIMO antenna for fixed or sectorized wireless links in the 6 GHz band. The design begins with an aperture-coupled single element incorporating a 4×4 slotted metasurface and i...

Influence of total occlusal convergence and auxiliary retentive features on regional marginal discrepancy in milled and 3D-printed short provisional crowns—an in-vitro study

This in-vitro study evaluated the influence of total occlusal convergence (TOC) (10°/20°) and auxiliary retentive features (ARF) (groove, proximal box) on regional marginal discrepancy in milled (CopraTemp PMMA) and 3D-printed (Asiga Dentatooth) short (3 mm) provisional crowns (P...

Children With Synpolydactyly Type I Homozygous HOXD13 Mutations: Embryology and Surgical Correction of the “Cupping” of the Hands and Feet

PURPOSE: Some patients with familial Synpolydactyly Type I have severe flexion deformities of the hands and feet at the metacarpophalangeal and the metatarsophalangeal joints, and the resulting deformity has been named "cupping" of the hands and feet. Severe "cupping" requiring s...

Experiences of female faculty teaching male students in maternity nursing: a qualitative study

Male students’ integration into maternity nursing education in Saudi Arabia is a relatively recent and culturally sensitive development that presents distinct pedagogical challenges. Despite broader research, how female faculty members navigate gender-sensitive content for male l...

In Silico Screening of Cannabis sativa Phytochemicals as Potential Ornithine Decarboxylase Inhibitors for Anti-Leishmanial Drug-Prioritized Compound Development

Leishmaniasis remains a major neglected tropical disease with limited therapeutic options, increasing drug resistance, and significant treatment-associated toxicity. Ornithine decarboxylase (ODC), which plays an essential role in polyamine synthesis and survival of parasites, is...

Performance Optimization of Novel Laser Hybrid Ultrasonic Vibration Assisted Micro Milling for Inconel 718

Miniaturization drives advanced manufacturing essential for next-generation systems using superalloys in aerospace, biomedical and microelectronics. Hybrid machining combines distinct processes to harness their individual strengths and overcome limitations. This experimental rese...

Femoral malrotation and patellofemoral osteoarthritis: cadaveric study

BACKGROUND: Femoral rotational alignment has been proposed as one factor that may influence patellar tracking and the distribution of patellofemoral joint loading. The present study explored whether characteristic patterns of patellar facet degeneration coexist with abnormally hi...

Digital epidemiology investments, Saudi Arabia.

Problem: Traditional epidemiological surveillance methods are often limited by delays in reporting and fragmented data systems. Saudi Arabia faces additional public health challenges from mass gatherings during Hajj and Umrah, an increasing burden of noncommunicable diseases and...