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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Exploring the Impact of ESG Disclosure on Corporate Stock Market Performance in Egypt
(October University for Modern Sciences and Arts MSA, 2024) Ali Khaled; Ismail Abd Al Aziz
The purpose of this research is to study the impact of environmental, social, and governance (ESG) disclosure on corporate stock market performance. The sample for this research consists of 32 Egyptian companies listed in the EGX100 index from 2018 to 2022. The main finding, based on regression analysis (Fixed Effects Model), is that there is a significant positive impact of ESG disclosure on corporate stock market performance in Egypt. This result would help the Egyptian market authorities realize the importance of integrating ESG information into the financial reports of the listed companies. It could also help in developing effective disclosure procedures to provide shareholders with useful information. This study contributes to the growing body of literature on ESG because it provides a comprehensive overview of ESG practices and their impact on stock market performance, focusing on the Egyptian market as one of the most important emerging markets in the MENA region. It provides valuable insights for investors and policymakers about ESG practices.
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The Impact of Social Interactions During Onboarding Programs on Students' Fee-paying Behavior
(British Academy of Management, 2024-09-01) Eldegwy, Ahmed; Omneya A. Marzouk
Drawing on the need-to-belong theory together with prominent concepts from service marketing, this article investigates the impact of human interactions during onboarding programs on student satisfaction as well as the latter’s influence on students’ prosocial behavior and brand preference. It then examined the impact of prosocial behavior and brand preference on student fee-paying behavior. Such research is warranted as there is a critical need to offer academics and practitioners insights into effective student recruitment practices in the highly competitive higher education environment. 367 responses were captured from participants in an onboarding program. Structural equation modeling (SEM) was used to analyze the data. Financial records were used to confirm students’ admission. The results confirmed the effectiveness of social interactions, especially with fellow students, on student satisfaction and found that student satisfaction drives students’ prosocial behavior and brand preference. The latter constructs were found to be predictors of fee payment
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INFLUENCE OF CERAMIC MATERIALS AND PREPARATION DESIGNS ON THE MARGINAL ADAPTATION OF INLAYS AND ONLAYS AFTER THERMOCYCLING
(Quintessence Publishing Company, 2024-09-27) Mahmoud Attia; Aya A Salama
INFLUENCE O F CERAMIC MATERIALS AND PREPARATION DESIGNS ON THE MARGINAL ADAPTATION OF INLAYS AND ONLAYS AFTER THERMOCYCLIN By (Attia, Mahmoud) ; (Salama, Aya A.) (provided by Clarivate) Source INTERNATIONAL JOURNAL OF PROSTHODONTICS Volume37Issue5Pagee200-e210 DOI10.11607/ijp.8504 Published SEP-OCT 2024 Indexed 2024-11-03 Document Type Article Abstract Purpose:To evaluate inlay and onlay marginal adapta2on of two different ceramic materials using two intracoronal prepara2on designs. Materials and Methods: An examina2on of the marginal adap2on of two materials-lithium disilicate (LD; IPS e.max CAD) and polymer infiltrated ceramic network material (PICN; Vita Enamic)-and two prepara2on designs, where D1 represents MOD inlay prepara2on with no cusp reduc2on and for D2, in addi2on to the basic MOD prepara2on, the buccal cusps (func2onal cusps) were reduced by 1.5 mm. Four sub-groups (LD-D1, LD-D2, PICN-D1, PICN-D2) were conducted. In total, 40 (n = 40) mandibular molars were used. A stereomicroscope was used to assess the marginal gap before, aWer cementa2on and aWer thermocycling. Values were calculated for the mean, median, SD, minimum, maximum, and 95% CI. Pairwise comparisons using Tukey post-hoc test were performed following an ANOVA significance of P <= .05. Results: The results revealed that lithium disilicate showed sta2s2cally significantly higher mean gap distance than PICN material (61 mu m to 99 mu m). Pairwise comparisons showed that D2 design has sta2s2cally significant higher mean gap values than D1. Conclusions: Both LD and PICN material provided marginal adapta2on within clinical accepted range. PICN material restora2ons provided better it than lithium disilicate restora2ons. Cusp coverage has a greater marginal gap compared toconven2onal prepara2on.
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The impact of cybersecurity disclosure on banks’ performance: the moderating role of corporate governance in the MENA region
(Springer open, 2024-11-14) Dalia Hussein Elsayed; Tariq H. Ismail; Eman Adel Ahmed
This study aims to: (1) examine the impact of cybersecurity disclosure on banks’ performance and (2) explore whether the existence of a chief risk ofcer (CRO), an information technology (IT) committee, and a board of directors (BOD)’ size moderates the association between cybersecurity disclosure and bank performance. The study used manual textual analysis to measure cybersecurity disclosure in a sample of listed banks in the MENA region countries based on data from 2019 to 2021. The data were collected from annual reports and fnancial statements of banks available at Orbis Bank Focus database. The study employed a random efect regression model to test the hypotheses and discuss the results. The fndings show that banks in the MENA region are increasingly interested in disclosing cybersecurity information, where cybersecurity disclosure over the sample years is increasing from 17% in 2019 to 19.6% in 2021. In addition, the results show that cybersecurity disclosure has a positive and signifcant infuence on bank performance. Furthermore, the fndings indicate that the presence of a CRO moderates the relationship between cybersecurity disclosure and bank performance. These fndings show that depending largely on a bank’s CRO to handle complex and dynamic risks can have serious consequences for decision making processes connected to managing cybersecurity risk and disclosure. This paper creates a new research paradigm by focusing on the disclosure of cybersecurity information in the MENA banking sector, where exploring the moderating role of the CRO, IT committee, and board size in enhancing the cybersecurity disclosure-bank performance relationship is lacking. The fndings provide practical implications for various stakeholders, where it reveals the current practices of cybersecurity disclosure of banks in the MENA region with the objective of minimizing information asymmetry, maintaining public trust, and identifying potential risks of fnancial distress. In addition, the results direct the attention of banks and regulators toward the role of CRO in risk governance, particularly in managing cyber risks within the banking industry.
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Influence of Vitamin D Status and the VDR Gene Polymorphism on COVID-19 Susceptibility and Outcome
(Journal of Pure and Applied Microbiology, 2024-11-26) Amal Ahmed Mohamed; Nivin Naeem Baiomy; Abeer M. Rawy; Mona M.F. Ghanem; Soha M. Abd El Salam; Karima Nasraldin; Mohamed Ramadan Ezz Al Arab; Hussein H. Samir; Omar Mohamoud Azzam; Nashwa M. Muharram; Naglaa Elsalway; Ahmed Y. Elamir; Sarya Swed; Wael Hafez; Luis A. Salas-Matta; Alfonso J. Rodriguez-Morales; D. Katterine Bonilla-Aldana; Hashem Abu Serhan; Sanjit Sah; Rachana Mehta
Insufficient vitamin D levels in the bloodstream, together with the presence of specific genetic variations known as single nucleotide polymorphisms (SNPs) within the VDR gene, have consistently been linked to a higher likelihood of contracting and experiencing more severe forms of various diseases such as the ongoing COVID-19 pandemic. We aimed to explore the potential relationship between vitamin D levels, Bsml and FoKI polymorphisms, and COVID-19 infection outcomes. A case-control study was conducted with COVID-19 patients and a control group of non-COVID-19 patients (n = 107 each). The associations between vitamin D status, polymorphisms, and COVID susceptibility were investigated. Participants diagnosed with COVID-19 exhibited an average age of 48.84 ± 12.18, while non-COVID-19 patients had an average age of 46.82 ± 9.903. Disease severity, assessed by the CT severity score, showed a negative correlation with the Vitamin D levels. Among participants with COVID-19, the mean level of vitamin D was 35.25 ± 9.40 ng/mL while non-COVID-19 patients showed 38.85 ± 9.40 ng/mL with a significant difference (p = 0.004**) although among COVID-19 cases, 87 (81.3%) individuals had sufficient vitamin D levels and non-severity of disease was more common i.e. 54 (50.5%) among the COVID patients who had sufficient level of Vitamin D. The study found no significant association between Vitamin D levels and rs1544410 Bsml polymorphism (p = 0.429). However, it is important to highlight a weak significant association observed between with Fok1 polymorphism (p = 0.049). These findings underscore the weak influence of genetic factors, particularly VDR Fok1 gene variants, in shaping an individual’s susceptibility to COVID-19. A significant difference in vitamin D status was observed between the COVID-19 and non-COVID-19 groups and lower level was observed in the COVID-19 infected patients. Furthermore, a weak significant association was observed between Fok1 rs2228570 genotype and COVID-19 susceptibility. Larger sample sizes are required to comprehensively understand the association between different genotypes and COVID-19 outcomes.