MSA Repository "MSAR"

MSAR University's Digital Repository is a documentation and digitization of all university outcomes that are of effective value in the scientific and academic community and reflects the university's image, work, and effective contribution to society Through MSAR Digital Repository, the university managed to collect, store, archive and publish digital content - including documents, audio files, images and data sets - all in a safe place. MSAR is one of the strongest University Digital Repositories in Egypt and documented in the DSPACE community with its latest versions.

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Acupuncture combined with moxibustion therapy for acne vulgaris among adolescents: A randomized controlled trial
(Churchill Livingstone, 2026-07-18) Siham M. Fahmy; Reham M. Abdelrahim; Ahmed M. Tawfick; Marian M. Shafeek
Objective: To assess the efficacy of acupuncture combined with moxibustion compared to standard medical treatments for alleviating symptoms of moderate to severe acne vulgaris in adolescents. Methods: One hundred adolescents with moderate to severe acne vulgaris randomly assigned to the control group received conventional medications, and the experimental group received acupuncture with moxibustion therapies three times weekly. Both groups received interventions for four weeks. The main outcome was assessed by grading and counting inflammatory lesions, and the secondary outcomes were assessed by the Skindex-16 scale in both groups before and after the intervention period. Results: Both groups demonstrated significant improvement following treatment (p < 0.001). The experimental group showed significantly greater improvement in outcomes in the Skindex-16 emotional and total scores (p < 0.001), as well as functional scores (p = 0.001), while no significant differences were observed between the groups in symptom scores (p = 0.079) or lesion counts (p = 0.239). The percentage of improvement showed greater reductions across all measured outcomes in the experimental group, with statistically significant differences observed in most domains. Conclusion: Acupuncture and moxibustion effectively improve both skin lesions and psychosocial well-being in adolescents with acne vulgaris.
Performance Of Flowable Giomer Versus Nanofilled Flowable Composite With Or Without Giomer Coat In Conservative Occlusal Cavities: 18 Months Randomized Clinical Trial
(Cairo University, Faculty of Dentistry, 2026-07-01) Amina Ahmed Gaafar; Eman Aly Abouauf; Hebaallah Mohamed Taher
Aim: This study was conducted to evaluate clinical performance of flowable giomer and flowable resin composite coated with S-PRG in comparison to flowable resin composite as a preventative resin restoration in patients requiring minimally invasive simple class I cavities in permanent molars over 18 months test period. Subjects and methods: Patients with occlusal cavities in permanent molars with ICDAS score 2, were randomly assigned into three groups (n=14 each group, total =42). Group A1 received Flowable giomer, group A2 received Flowable Resin Composite with S-PRG coat applied biannually and group A3 (control) received flowable resin composite. All materials were utilized using the manufacturers’ instructions. Evaluation of restoration was carried out using FDI criteria and probes. Incidence of new carious lesions was evaluated using DIAGNOdent pen. All outcomes were measured at baseline (1 week after placement), after 6, 12, and 18 months. Results: DIAGNOdent scores showed significant intragroup improvements over time, while intergroup differences emerged at later follow-ups. Based on FDI criteria, no significant differences were found between materials. All restorations demonstrated 100% success and survival at 18 months. Conclusion: All tested materials showed similar clinical performance and absence of incidence of new carious lesions after 18 months follow-up.
Multi-objective Optimization Approach of Enhancing Visual Comfort in Educational Buildings: A Case study-MSA University Classrooms, Egypt
(Assiut University, Faculty of Engineering, 2026-09-01) Manar Fouad Elsaeed Eltanbouly; Moemen Afify; Henar Aboelmagd
The design of shade devices and the window-to-wall ratio are crucial factors in enhancing visual comfort, productivity, and overall well-being in buildings. By managing the design and configuration of shade systems, it is possible to achieve ideal levels of Useful Daylight Illuminance (UDI) while reducing thermal discomfort from overheating and visual discomfort from glare. This research presents a multi-objective optimization (MOO) strategy for existing educational buildings that utilizes different geometric shapes to enhance the efficiency of daylight and visual performance. Using a parametric approach and evolutionary multi-objective computation via Wallacei-x plug-in for Grasshopper, various shading device opening ratios, shading geometry, and window material in existing educational buildings in West Cairo, Egypt, are implemented by implementing responsive façade systems. The study evaluates the impact of various fixed shading designs, including horizontal and vertical angled blinds, on daylight performance metrics such as Daylight Factor (DF), Useful Daylight Illuminance (UDI), and glare risk (DGP). While no shading allows for maximum sun penetration, it also causes severe over-illumination and glare. In contrast, inclined horizontal shade at 15° provides maximum visual comfort and equal illumination distribution, albeit with diminished daylight availability. Vertical blinds at 0° and 15° provide a balance of daylight reduction and glare control, giving realistic options. Building on these findings, the study investigates the performance of a responsive shading system with five different polygonal geometries in a controlled classroom setting. The simulation study shows that responsive shading provides a flexible, efficient daylighting strategy, surpassing static designs. Geometric diversity and adaptation are essential for enhancing indoor environmental quality in hot, arid regions. Solutions for existing buildings are explored, providing recommendations for shading devices geometry in university buildings in a hot and dry climate.
Assessment of cell viability of heat cured and 3D printed denture base resins on humans’ oral epithelial cells, and rats’ hepatic and myocardial cells
(BioMed Central Ltd, 2026-07-15) Ahmed N. Elsherbini; Nancy N. Elsherbini; Tasneem M Soliman; Mona El-Deeb
Objectives: Denture base materials contain unreacted monomers, which may act as bioactive compounds and affect cells and tissues in vital organs such as the liver and heart. The aim of this study was to assess the cytotoxic and cell viability effect of 3 Dimensional printed (3D) and heat cured acrylic (HCR) denture base resins on oral epithelial cells in humans and hepatic and myocardium cells in rats. Materials and methods: The Sulfo-rhodamine B (SRB) assay was used to evaluate cell viability. In 96-well plates, aliquots of 100 µL cell suspension (5 × 103cells) were incubated for 24 h. Another aliquot of 100 µL media containing denture base materials, acrylic resin (heat cured acrylic resin; Acrostone) and 3D printed resin (Denture bases; iFun) in different concentrations, 0.00(control), 0.01, 0.1, 1, 10, and 100 µg/ml were used to treat the cells of human oral epithelial cells, rats’ hepatic and myocardium cells. Results: There was a concentration dependent decrease in the cell viability of human oral epithelial cells, and rats’ hepatic and myocardium cells in both heat cured acrylic resin and 3D printed resin.100ug/ml concentration caused the highest decrease in cell viability percentage. However, there was a statistical significant difference between all concentrations in the 3 cell lines. Also, morphological picture showed the heat cured resin had a more deteriorating changes in the 3 cell lines more than 3D printed resin. Conclusion: 3D printed and heat cured acrylic denture base resins seemed to affect cell viability of human’s oral epithelial cells and rats’ hepatic and myocardium cells to some degree but without reaching cytotoxicity thresholds. Clinical relevance: Denture wearers wear their dentures for long period of time, and as dentures are made up of chemicals which may have a deteriorating effect on the patients’ general health. This research investigates which denture base material to be considered as the most biocompatible and safe for patients’ usage. Also, helps practitioners in choosing the more biocompatible material for their patients.
AI-Driven Teacher Preparation: A Constructivist and Cognitive Learning Perspective
(AM Publications, 2026-07-11) Adel Mohammad Al-Zahrani; Ghada Abdelhady
This paper explores the preparation of teachers through the lens of modern educational and learning theories, with particular attention to how artificial intelligence (AI) can augment educational planning and professional teacher development. Three major theoretical frameworks are examined: (1) Constructivist Theory, rooted in Piaget's cognitive development model, emphasizing the learner's active role in knowledge construction; (2) Meaningful Learning Theory (Ausubel), which underscores the critical link between new knowledge and pre-existing cognitive structures; and (3) Information Organization and Processing Theory, which explains how memory encoding and retrieval affect learning outcomes. The paper further integrates the McCarthy 4MAT model of learning styles to illustrate how AI-driven, learner centred strategies can be operationalized in contemporary teacher preparation programmers. Findings suggest that effective teacher preparation must transcend content delivery and focus on equipping teachers with adaptive, student-centred methodologies grounded in cognitive science.