King Saud University

Idebenone improves sperm redox balance and embryo fertilization in a mouse model of diet-induced obesity: In vitro fertilization.

Obesity is a significant factor contributing to male subfertility, primarily through mechanisms such as oxidative stress and compromised sperm function. Nevertheless, the efficacy of targeted antioxidant interventions in restoring sperm competence in non-diabetic obesity remains...

Influence of Pre-Solution ECAP and Ag Content on the Microstructure and Mechanical Properties of As-Cast Al–Cu–Mg–xAg Alloys

Casting-related microstructural variations can affect the mechanical performance of Al–Cu–Mg–Ag alloys. This study examines a novel processing route in which a single equal channel angular pressing (ECAP) pass was introduced before solution treatment (Route 2) and compares it wit...

Medication Adherence Views of Mental Health Nurses to Inspire Transformative Care

Aim Adherence to the treatment plan for medications is crucial in treating mental illness but remains low due to complex factors such as illness characteristics, side effects of psychotropic drugs, and systemic health-care challenges. Understanding these barriers is vital for eff...

Permutation Contractions in Complete b-Metric Spaces: Fixed Point Results and Applications

Permutation contractions have recently been investigated as a flexible generalization of classical contractive conditions through suitable combinations of orbit distances. In this paper, we study permutation contractions on a complete b-metric space and establish a generalized Ba...

The Effectiveness of Using Braille Self-Learning System on First-Grade Students’ Literacy Achievement

Introduction This study aims to examine the effects of using the Arabic braille self-learning system on first-grade students’ proficiency and pace of reading and writing the Arabic alphabet in braille. Methods This quasi-experimental study involved 14 first-grade students with vi...

Allelopathic Potential of Invasive Nicotiana glauca Aqueous Extracts on Germination and Seedling Growth of Invasive Prosopis juliflora

Laboratory and greenhouse experiments were conducted to investigate the allelopathic potential of aqueous leaf and bark extracts of invasive Nicotiana glauca on seed germination and seedling growth of invasive Prosopis juliflora. Extracts at 0, 10, 40, 70, and 100 g L−1 were eval...

Gloss and Surface Roughness of Stained and Polished 3D-Printed Resins Used for the Fabrication of Hybrid Denture Prosthesis: An In Vitro Study

Despite the increasing use of additively manufactured restorative materials, comparative information regarding their surface gloss and roughness after different surface treatments and simulated oral challenges remains limited. This study evaluated the gloss and surface roughness...

It is not just about football: An exploration of football, social change and national identity in Saudi Arabia

In recent years, football in Saudi Arabia has evolved from a popular sport into a potential vehicle for social change, driven by substantial growth in the sport. This has included significant investments in local clubs, hosting high-profile international tournaments, and attracti...

Vitamin D in coronary heart disease: a Mendelian randomization meta-analysis of data stratified by 25(OH)D levels

Maria Fusaro, Pasquale Perrone Filardi, Gianfranco Sinagra, Maria Luisa Brandi, Maurizio Gallieni, Jean-Yves Reginster, Eugene McCloskey, Etienne Cavalier,

Distinct Liver Enzyme Profiles in Non-Diabetic Obesity: Associations with Obesity Severity and Metabolic Dysfunction

Background: Obesity is a heterogeneous condition encompassing metabolically healthy and metabolically unhealthy phenotypes. Routine liver enzymes may reflect metabolic heterogeneity among individuals with obesity, yet their metabolic relevance in non-diabetic obesity remains inco...

Robust model-free DC-bus voltage regulation for stand-alone solar-powered electric vehicle charging stations with experimental laboratory verification

This paper proposed an ultra-local model free control (ULM) strategy for robust DC bus voltage regulation in a stand-alone solar powered electric vehicle charging station. In this study, the system under consideration consists of a photovoltaic (PV) generator interfaced via a max...

The impact of hospital ethical climate on turnover intention among nurses working in intensive care, oncology, and emergency department units: a cross sectional study

Hospital ethical climate is a key determinant of the quality of nursing care and plays a critical role in shaping nurses’ professional experiences. A positive ethical environment has been associated with improved job satisfaction and reduced nurse turnover intention. This study a...

Thermodynamic–molecular interdependencies and causal determinants governing pharmaceutical solubility in SC-CO2 systems

Abstract Accurate prediction of pharmaceutical solubility in supercritical CO₂ (SC-CO₂) systems is critical for green drug formulation and process intensification, yet existing machine learning studies largely prioritize predictive accuracy while overlooking mechanistic interpret...

Well-posedness and stochastic averaging for neutral Hadamard–Itô–Doob fractional differential equations under non-Lipschitz conditions

This paper investigates neutral fractional stochastic Itô-Doob differential equations (NFSIDDEs) under a non-Lipschitz framework, with particular attention to existence, uniqueness, and averaging results. The neutral part is built from several Hadamard fractional integrals of dis...

Associations of health locus of control with diabetes self-care: the role of illness perceptions among adults with diabetes in Saudi Arabia

Diabetes self-care is essential for achieving optimal glycemic control and preventing long-term complications. Health locus of control has been identified as an important determinant of health-related behaviors; however, the relationships between different control beliefs, illnes...

Isolation and Characterization of Lytic Bacteriophages Targeting Clinical Staphylococcus Other Than S. aureus

Abstract Staphylococcus spp., other than S. aureus (SOSA, formerly CoNS), are opportunistic pathogens often linked to biofilm infections on indwelling devices. Their rising antibiotic resistance highlights the need for novel therapies. Bacteriophages are promising due to their sp...

Multi-Response Optimization of FDM Process Parameters for Enhanced Mechanical Performance and Reduced Weight of PLA and PLA-CF 3D-Printed Parts

This work investigates the influence of fused deposition modeling (FDM) parameters on the tensile properties and material consumption of FDM-printed samples. The study focused on extrusion-related parameters that directly govern material deposition during FDM printing, including...

Optimized microwave pretreatment and ultrasound-assisted deep eutectic solvent extraction for efficient valorization of Citrus paradisi peel bioactives

Abstract This study presents a sustainable approach for recovering bioactive compounds from grapefruit ( Citrus paradisi ) peel using a glycerol–glucose-based deep eutectic solvent as a green extraction medium. Spectroscopic characterization confirmed the formation of stable hydr...

Unseen barriers to home healthcare: a qualitative study of providers’ perspectives from Saudi Arabia

This study investigated the challenges of providing care in Home Health Care (HHC) settings in Saudi Arabia. We employed a qualitative design and used thematic analysis to identify patterns and themes in the data supplemented with selected techniques commonly associated with grou...

Modulating the periodontal wound microenvironment through oxygen therapy: a narrative review on the biological basis, clinical applications and future perspectives

Topical oxygen-releasing formulations have emerged as a potential adjunctive approach to enhance wound healing outcomes in conditions such as gingivitis, periodontitis and peri-implant diseases. Periodontal wound healing is a complex biological process influenced by microbial loa...