Ibb University

Applications of double bond indices: Quantitative characterization of properties of benzenoid hydrocarbons

Topological indices (TIs) are widely used descriptors in QSAR/QSPR modeling, but conventional degree-based TIs neglect bond multiplicity, potentially limiting structural resolution. Thirteen extended double-bond-corrected TIs were derived via a Kekuúlé-structure-based edge classi...

Adjunctive antimicrobial photodynamic therapy in the nonsurgical treatment of periodontitis: an umbrella review

Antimicrobial photodynamic therapy (aPDT) has been proposed as a locally acting adjunct to subgingival instrumentation for periodontitis. This umbrella review aimed to synthesize and critically appraise systematic reviews of adjunctive aPDT during active nonsurgical periodontal t...

Integrative transcriptomics and systems genetics position AKAP4 as an evolutionarily constrained network hub gene in human sperm cryopreservation

Sperm cryopreservation is a key component of assisted reproductive technologies; however, freeze–thaw stress often compromises sperm motility and fertilization capacity. Identifying molecular determinants of cryoinjury is essential to improving fertility preservation strategies....

Ovalbumin peptides exert bidirectional immunomodulatory activity in vivo via regulating cytokines and antioxidant capacity

The ideal immunomodulatory peptides should possess both immune-enhancing and anti-inflammatory properties. This study investigated the bidirectional immunomodulatory activity of ovalbumin peptides (OVAP) using immunocompromised and inflammatory mice models integrated with network...

Eco-friendly dentistry in clinical practice: awareness, implementation and factors associated with sustainable dental care

Environmental sustainability is increasingly recognised as part of oral healthcare and dental education, but evidence from low-resource and conflict-affected settings remains limited. This study assessed the awareness and implementation of eco-friendly dentistry amongst dental pr...

Comparative antioxidant recovery evaluation of ultrasound and supercritical CO₂ Yemeni red onion peel extractions with LC-ESI-MS/MS profiling of ultrasound-assisted extracts

Yemeni red onion ( Allium cepa L.) peels of the local Yemeni cultivar ‘Ba Fatim’ represent an underutilized agro-waste rich in bioactive compounds with significant antioxidant potential. This study aimed to comparatively evaluate ultrasonic-assisted extraction (UAE) and supercrit...

Therapeutic Equivalence, Immunogenicity, and Safety of Euvichol Oral Cholera Vaccine Formulations Compared with WHO-prequalified Shanchol vaccine in Healthy Children and Adults: A Systematic Review and Meta-Analysis of Randomised Controlled Trials

Preprint Description Background: Global demand for oral cholera vaccines (OCVs) has increased substantially, while the discontinuation of Shanchol has increased reliance on Euvichol-based formulations. This systematic review and meta-analysis evaluated the immunogenicity and safe...

Therapeutic Equivalence, Immunogenicity, and Safety of Euvichol Oral Cholera Vaccine Formulations Compared with WHO-prequalified Shanchol vaccine in Healthy Children and Adults: A Systematic Review and Meta-Analysis of Randomised Controlled Trials

Preprint Description Background: Global demand for oral cholera vaccines (OCVs) has increased substantially, while the discontinuation of Shanchol has increased reliance on Euvichol-based formulations. This systematic review and meta-analysis evaluated the immunogenicity and safe...

A fixed-time fault-tolerant tracking control for fractional-order UAV networks using adaptive fuzzy neural and event-triggered mechanisms

Abstract This paper investigates coordinated tracking control for fractional-order fixed-wing unmanned aerial vehicle (UAV) networks subject to actuator faults, input saturation, unknown nonlinear dynamics, external disturbances, and communication constraints. A dynamic memory ev...

Anthropometric, lifestyle, dietary and diabetic status of Yemeni women with polyendocrine metabolic ovarian syndrome in Taiz City: a cross-sectional study

Objective: Exploration of risk factors for polyendocrine metabolic ovarian syndrome (PMOS) across various populations has identified obesity, poor dietary habits, and absence of physical activity as key contributing factors. This study aimed to assess the anthropometric measureme...

Exploring the influence of firm digital transformation on sustainable competitive advantage through organizational agility with moderation of knowledge sharing

The paper examines the construct of digital transformation (DT) and its role in the sustainable competitive advantage (SCA) in project-based firms in Pakistan, namely in the construction, information technology, manufacturing, and service industries. The paper investigates the ef...