Ain Shams University

Teachers’ perceptions of female principals’ leadership styles in basic education schools: an Omani perspective

Despite extensive research on educational leadership, studies examining female leadership in basic education schools within Oman remain limited particularly regarding its impact on teachers and school climate. Addressing this gap is crucial to inform leadership development and po...

Electrophysiological responses in relation to speech perception in children with cochlear implants

Abstract Background Speech perception is a critical outcome of pediatric cochlear implantation, reflecting the effectiveness of auditory signal transmission and cortical processing for functional communication. Objective electrophysiological measures may provide valuable insight...

Anteromedial Femoral Tunnel Placement Reduces Graft Failure Risk Without Affecting Rotational Stability in Anatomic Single‐Bundle Anterior Cruciate Ligament Reconstruction: A Systematic Review

Purpose To compare clinical outcomes and graft failure between anatomical femoral tunnel (FT) placement at the central and anteromedial bundle (AMB) positions. Methods A systematic review was performed according to the Preferred Reporting Items for Systematic Reviews and Meta‐Ana...

A Spectral Tau Algorithm Using Shifted Convolved Fibonacci Polynomials for Singular Functional Models

In this paper, for some second-order singular functional differential equations (SOSFDEs), a tau-type spectral technique is built using non-origin-symmetric polynomials called shifted convolved Fibonacci polynomials as the approximation basis. Derivative formulae, integral identi...

Synthesis and in silico studies of hexahydroacridine derivatives as potential antitumor agents

Abstract Despite advances in targeted cancer therapies, drug resistance and off-target toxicity remain major challenges, underscoring the need for new multi-targeted agents with improved selectivity. The present study evaluated the anticancer potential of newly synthesized hexahy...

Sustainable utilization of Egyptian waste cooking oil biodiesel in diesel engines: performance and emission characteristics

Abstract This study experimentally evaluated waste cooking oil (WCO) biodiesel–diesel blends in an unmodified single-cylinder direct injection diesel engine operated at 1500 rpm under no load and 1–5 kW load conditions. Diesel and B10–B50 were compared in terms of brake-specific...

Chemical reaction for thermodynamic irreversibility in MHD tetrahybrid nanofluid flow with thermal radiation, heat source and multi-dissipation

Abstract This study explores entropy generation in the magnetohydrodynamic flow of a tetra hybrid nanofluid. ( $${\text{Al}}_{2} {\text{O}}_{3} - {\text{Cu}} - {\text{SiO}}_{2} - {\text{TiO}}_{2} /{\text{H}}_{2} {\text{O}}$$ ) over a permeable surface embedded in a Darcy–Forchhei...

Sustainability-Driven Seismic Resilience Assessment and Multiobjective Optimization of DSM-Retrofitted RC Bridges on Liquefiable Ground

Abstract Sustainability and seismic resilience are increasingly essential for infrastructure systems, prompted by the demand to endure more frequent extreme events while minimizing environmental impacts. This paper presents a sustainability-driven, multiobjective framework for as...

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...

Mechanical behavior of endodontically treated molars restored using two restorative approaches and two CAD/CAM materials: an in-vitro study

Abstract Background Restoration of endodontically treated teeth (ETT) with significant coronal loss poses a challenge in clinical dentistry. Advances in CAD/CAM technology and biomimetic materials have introduced minimally invasive approaches, such as endocrowns and overlays, whi...

Dual GLP-1/glucagon receptor agonists in metabolic dysfunction–associated steatotic liver disease: a meta-analysis of randomized controlled trials

Metabolic dysfunction–associated steatotic liver disease (MASLD) affects approximately one-third of the global population. We aimed to evaluate the efficacy and safety of dual glucagon-like peptide-1 and glucagon receptor agonists (GLP-1/Gcg RAs) in patients with MASLD. PubMed, W...

Molecular modeling characterization of cellulose and chitosan metal oxide hybrid interfaces

Abstract The interfacial electronic structure of biopolymer–metal oxide hybrids determine their stability, yet this structure is still not well understood. Here, we report a density functional theory study of 10 model systems consisting of cellulose and chitosan functionalized wi...

“Radiation-Synthesized Gallotannin Hydrogel Attenuates Trisenox-Induced Nephrotoxicity in Rats: miR-223/TXNIP Axis Modulation of Oxidative Stress and Inflammation”

Arsenic trioxide (ATO) is a potent therapeutic agent against acute promyelocytic leukemia; nevertheless, its clinical utility is severely restricted by dose-limiting nephrotoxicity. This study investigated the protective potential of a radiation-synthesized gallotannin hydrogel (...

The immunotherapy arsenal against upper gastrointestinal tumours: A comprehensive review of immune checkpoint inhibitors across neoadjuvant, adjuvant, and metastatic settings

Immune checkpoint inhibitors (ICIs) targeting the programmed death-1 (PD-1) / programmed death ligand-1 (PD-L1) axis have fundamentally transformed the management of upper gastrointestinal (GI) malignancies. Across oesophageal cancer, gastric/gastroesophageal junction (GEJ) adeno...

Limiting dengue transmission using a differential game approach

In this paper, a fundamental structural asymmetry in dengue fever epidemic control approaches is identified and formalized. We show that treatment and quarantine interventions must influence the sick compartment, whereas the majority of epidemic game models treat interventions as...

Diagnostic and Molecular Yield of a Multidisciplinary Team-Guided Combined Endobronchial and Endoscopic Ultrasound-Guided Sampling Strategy for Mediastinal and Hilar Lymphadenopathy

BACKGROUND: Real-world data examining structured modality selection for mediastinal/hilar adenopathy in mixed malignant and benign cohorts is limited. We evaluated the performance of a multidisciplinary team (MDT)-guided strategy incorporating EBUS/EUS-B and EUS for both benign a...

Pilot study on RECAF (Receptor for Alpha-Fetoprotein) expression in pediatric acute leukemia: insights from flow cytometry analysis

Abstract Background Acute leukemia is the most common cancer in children, highlighting the importance of early diagnosis. RECAF is an AFP receptor that is abnormally re-expressed in various malignant tumors, serving as a promising biomarker for tumors. Aim This study aimed to ass...

Use of indocyanine green fluorescence versus patent blue V dye for sentinel lymph node biopsy in early breast cancer, a randomized controlled trial

Abstract Background Sentinel lymph node biopsy (SLNB) is standard for axillary staging in early breast cancer. While the combination of radioisotope and blue dye (e.g., patent blue V, PBV) remains the standard, it has limitations including logistics, variable identification rate...

Enhancing Early-Age Strength of Low-Clinker Limestone Calcined Clay Cement Using Sodium Carbonate and Chemical Accelerators

While limestone calcined clay cement (LC3) can reduce CO2 emissions by up to 50%, low early-age strength in low-clinker formulations limits its structural adoption. This study investigates practical strategies to accelerate early strength development in low-clinker LC3 mortars (c...

Therapeutic Ultrasound Versus Levofloxacin in Lipopolysaccharide-Induced Orchitis: Comparative Effects on Testicular Inflammation and Tissue Recovery in Rats.

Background & Objective: Orchitis is a testicular inflammatory disorder that may impair spermatogenesis and compromise male fertility. Although fluoroquinolones are widely used in infectious orchitis and possess ancillary anti-inflammatory properties, concerns remain regarding the...