Saudi Cultural Missions Theses & Dissertations
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Item Restricted تقییــــم أثــر ممارســـــات الصحــــة الرقمیـــة علــى تحســـین جــــودة أداء خدمــــات الرعایــــة الصحیـــــة فى ضــــــوء نظــــم دعــــم القرارات الإدار�ـــــة دراســــــة تطب�قیــــــة على المراكــــز الصحیـــــة فى مدینـــــــة نجــــــران �المملكـــــــة العر�یـــــــة السعودیــــــة(Saudi Digital Library, 2025) الصقور, عزان; عبدالرحمن, عادلتقییــــم أثــر ممارســـــات الصحــــة الرقمیـــة علــى تحســـین جــــودة أداء خدمــــات الرعایــــة الصحیـــــة فى ضــــــوء نظــــم دعــــم القرارات الإدار�ـــــة دراســــــة تطب�قیــــــة على المراكــــز الصحیـــــة فى مدینـــــــة نجــــــران �المملكـــــــة العر�یـــــــة السعودیــــــة4 0Item Restricted دور األخرائي االجتساعي في برامج الرعاية االجتساعية وفاعميتها في تدعيم حقهق السدشين لمهقاية من األوبئة في مشطقة القريم دراسة ميدانية(Saudi Digital Library, 2025) الحربي, محمد; أبو العلا, دينا; خليل, نجلاء; حجازي, هانيدور األخرائي االجتساعي في برامج الرعاية االجتساعية وفاعميتها في تدعيم حقهق السدشين لمهقاية من األوبئة في مشطقة القريم دراسة ميدانية0 0Item Restricted درو تقنيات ذكاء الأعمال في تحسين جودة الخدمات الصحية في المستشفيات الحكومية في المملكة العربية السعودية(Saudi Digital Library, 2026) Alruwaili, Abdulaziz; Adu AlSondos, IbrahimThe study aimed to identify the role of business intelligence technologies in improving the quality of health services in government hospitals in the Kingdom of Saudi Arabia. The study used the descriptive causal approach. The study population consisted of employees in government hospitals in the Al-Jawf sector, which number five hospitals and have approximately (4800) employees from various medical, administrative and technical departments. A convenience sample consisting of (191) individuals was selected, and the study instrument was a questionnaire, the validity and reliability of which were verified , Statistical analysis was conducted using the Statistical Package for the Social Sciences (SPSS). The study concluded that there is a high level of application of business intelligence (BI) technologies in government hospitals. All dimensions (database management systems, data analysis, interactive reporting and dashboards, and data integration) were found to be at a high level. The quality of healthcare services in government hospitals in the Al-Jawf region was also found to be high. The results showed a statistically significant effect (p < 0.05) of BI technologies, across all dimensions (database management systems, data analysis, interactive reporting and dashboards, and data integration), on improving the quality of healthcare services in government hospitals in the Al-Jawf region. The study recommended the following: developing and updating medical database management systems in government hospitals; promoting the use of health data analysis tools and technologies within government hospitals; incorporating BI technologies into the strategic plans of the Ministry of Health and government hospitals; and allocating clear budgets for developing the supporting technological infrastructure. Keywords: Business intelligence, database management systems, data analysis, interactive reporting and dashboards, data integration, quality of healthcare services, Al Jawf region.4 0Item Restricted Investigating High-frequency Electrical Transport Properties in Yttrium Iron Garnet (YIG)/Platinum (Pt) Using Picosecond Acoustic Pulses(Saudi Digital Library, 2025) Badahdah, Maha; Kent, AnthonyThis thesis investigates high-frequency electrical transport properties in yttrium iron garnet (YIG)/platinum (Pt) heterostructures using picosecond acoustic pulses. Femtosecond laser excitation of aluminium (Al) transducers generates coherent strain pulses that propagate through gadolinium gallium garnet (GGG) substrates. These acoustic phonons couple magnetoelastically with the ferrimagnetic YIG layer, modulating local magnetic anisotropy and exciting spin waves. The resulting spin currents transfer to the adjacent Pt layer, where strong spin-orbit coupling converts them to measurable charge currents via the inverse spin Hall effect (ISHE), enabling electrical detection of acoustic-magnetic interactions. Samples comprised YIG films of 200 nm and 830 nm thickness deposited on both thick (500 𝜇𝑚) and thin (120-200 𝜇𝑚) GGG substrates, with 5 nm Pt detector strips and 25-60 nm Al transducers. Three temporally distinct signals emerge, which are optical excitation at t ≈ 3 ns from direct thermal spin Seebeck effect, primary acoustic response at t = 35.8-86.5 ns from magnetoelastic coupling, and acoustic echo signals confirming coherent phonon propagation. The antisymmetric voltage response upon magnetic field reversal (±1.66 mT to ±4.15 mT) demonstrates ISHE detection, representing the first electrical measurement of strain-induced spin currents in magnetic insulator/heavy metal bilayers. Key findings include temperature-dependent signal variations from 1.8 mV at 10 K to 1.25 mV at 250 K, field-tunable ferromagnetic resonance frequencies spanning 0.1-9.7 GHz, and acoustic standing wave resonances at 4 GHz and 8 GHz. Remarkably, 200 nm films at 50 K exhibit signal amplification over 4 𝜇𝑚 timescales, suggesting possible sound amplification by stimulated emission of radiation (SASER) action through magnetoelastic feedback mechanisms. These results establish picosecond acoustics as a powerful platform for investigating magnetoelastic coupling with sub-nanosecond temporal resolution, opening pathways for acoustic control of spin transport in next-generation spintronic devices3 0Item Restricted تأثير بيئة العمل الداخلية على اداء موظفى المراكز الصحية(Saudi Digital Library, 2026) هويمل, بدر; ابو القمصان, احمد; صالح الدين, مروة; السوداني, محمدتأثير بيئة العمل الداخلية على اداء موظفى المراكز الصحية0 0Item Restricted Auditing of Pre and Post-Operative Nursing Interventions for Patients Undergoing Abdominal Surgeries(Saudi Digital Library, 2026) Alsharari, Abdulmajeed Salem; ElDien, Hamida AlamThis study aimed to audit pre- and post-operative nursing interventions provided to patients undergoing abdominal surgery at Al-Qurayyat General Hospital, Saudi Arabia. A descriptive cross-sectional design was used with a sample of 30 nurses. Data were collected using a structured questionnaire and analyzed using SPSS. Results showed high overall compliance (≈90%), with strong adherence to safety measures, but lower compliance in early ambulation, pain assessment, and discharge education. No significant relationship was found between demographic variables and compliance. The study recommends regular audits and targeted training to improve holistic patient care and adherence to ERAS protocols.5 0Item Restricted Rooftop Solar in Saudi Arabia’s Energy Transition: Barriers and Opportunities Through the Lens of Energy Justice(Saudi Digital Library, 2025) Alrakhies, Saud; Contreras, GerardoThis dissertation investigates the effectiveness of Saudi Arabia’s energy policies in promoting residential adoption of rooftop solar photovoltaic (PV) systems, with a particular focus on equity and fairness through the framework of energy justice. While the Kingdom possesses exceptional solar potential and has articulated ambitious diversification goals under Vision 2030, household level adoption of rooftop PV remains negligible. The study applies document analysis to seven key policy and regulatory texts produced by state institutions, including the Saudi Electricity Regulatory Authority (SERA), the Saudi Electricity Company (SEC), and the Saudi Energy Efficiency Center (SEEC). The findings demonstrate that barriers to adoption extend beyond technical feasibility or economic cost to include distributional, procedural, and recognition deficits. Distributional arrangements preserve low electricity tariffs and impose unattractive net billing rates, limiting incentives for households while favouring wealthier property owners. Procedural justice is undermined by complex application processes and centralised governance, which privilege institutional actors and restrict meaningful household participation. Recognition justice is constrained by the homogenisation of consumers as property owning and technically capable, with limited acknowledgement of tenants, vulnerable groups, or the need for targeted awareness programmes. Across all three dimensions, centralisation emerges as a defining feature of Saudi rooftop PV governance. Policies are designed to deliver national diversification and utility scale renewable capacity, but households remain marginalised in practice. The research contributes by situating Saudi energy governance within energy justice debates, showing that inclusive and sustainable transitions require institutional frameworks that recognise households as active participants rather than passive consumers.4 0Item Restricted EDTA Irrigation Protocols Influence the Liberation of Dentine Matrix Components: a Proteomics Insight(Saudi Digital Library, 2026) AlOthman, Shihanah Ali; Nicholas, Longridge; Kazuhiro, Yamamoto; Kevin, Hamill; Emad, Moawad; Fadi, JaradBackground: Vital pulp treatment and regenerative procedures aim to preserve dental pulp vitality and support tissue healing using biomaterials and endogenous stem/progenitor cells. However, clinical success is limited by an incomplete understanding of pulp-dentine biology, particularly the effects of irrigation solutions on dentine matrix proteins and dental pulp stem cells. Aim: This thesis aimed to determine optimal ethylenediamine tetra acetic acid (EDTA) irrigation conditions for releasing bioactive dentine proteins, using proteomic and protein detection techniques to assess their potential effects on dental pulp healing and regeneration. Methods: Fresh bovine incisors were sectioned at the cemento-enamel junction, the pulp tissue was removed, and the inverted crowns were mounted in tissue culture plates. The pulp chambers served as reservoirs for a series of irrigation-based experiments designed to investigate the extraction and identification of dentine extracellular matrix (ECM) components under varying conditions. Different irrigation protocols were applied using EDTA. The first experiment assessed the effect of irrigation duration, with EDTA applied for 20 minutes, 2 hours, and 24 hours to compare the quantity and profile of released dentine matrix proteins. The second experiment compared protein extraction using EDTA and sodium dodecyl sulphate gel (SDS), a laboratory detergent known for its strong protein-solubilising properties. The third experiment evaluated the release of water-soluble proteins through sequential water washing of dentine surfaces followed by EDTA irrigation on the same samples, allowing assessment of cumulative protein extraction efficiency. The extraction lysates from these three experiments were analysed using sodium dodecyl-sulphate polyacrylamide gel electrophoresis (SDS-PAGE), and in the first experiment, semi- quantification was performed using ImageJ. The final experiments aimed to identify and characterise the extracted proteins. Liquid chromatography-tandem mass spectrometry (LC-MS/MS) was employed to analyse proteins. Samples were treated with EDTA and water under different temperature conditions (4 °C, 37 °C, and 60 °C). Each condition was prepared in triplicate (n = 18), and the total irrigation time was 30 minutes for all samples. Analysis using MaxQuant identified 2,557 proteins, which were refined using Perseus filters to exclude entries identified only by site, reverse hits, or contaminants. Only proteins detected in at least two replicates were retained, yielding a total of 1,878 proteins for inclusion in this study. Western blot analysis was subsequently conducted to validate the LC–MS/MS findings and to confirm the presence of transforming growth factor beta 1 (TGF-β1) in water- and EDTA-treated dentine samples at 4 °C. Results: Increasing the duration of EDTA irrigation resulted in greater protein extraction from the dentine matrix. An irrigation period of 20 minutes was sufficient to extract detectable dentine matrix proteins; however, a 2 hours application released more proteins, and the 24 hours irrigation period produced the highest yield among all time intervals assessed. A potent agent such as SDS extracted higher amounts of protein within a shorter application time compared with EDTA irrigation. Water-soluble proteins were readily released when dentine tissue was exposed to a liquid, likely comprising a mixture of dentine matrix and pulp proteins, as the dentine-pulp complex functions as a unified biological system. Temperature also influenced protein release, with EDTA at 4 °C yielding the greatest quantity and diversity of proteins. Forty-one proteins were commonly upregulated in EDTA-treated samples compared with water at all temperatures, including TGF-β1, IGFBP5, DSPP, BGN, COL11A2, and CTHRC1. Seventeen proteins were consistently downregulated in EDTA-treated samples relative to water across all temperature conditions. Notably, at least thirteen growth factors were exclusively identified in EDTA extracts but were absent in water-treated groups. Finally, western blot analysis confirmed the presence of TGF-β1 at multiple molecular weights across all EDTA conditions and in water extracts at 4 °C. Conclusion of the thesis: EDTA irrigation effectively releases bioactive dentine matrix components, with protein yield increasing proportionally to exposure duration. While a 20 minute application extracted detectable protein levels, prolonged irrigation (up to 24 hours) notably enhanced protein recovery. Temperature also influenced extraction efficiency, with EDTA at 4 °C producing the greatest protein quantity and diversity. Proteomic analysis identified forty-one proteins consistently upregulated in EDTA-treated samples compared with water, including several growth factors such as TGF-β1, IGFBP5, DSPP, and BGN. Western blot validation confirmed the presence of TGF-β1 across all EDTA conditions. Another notable finding was that EDTA released at least thirteen growth factors that were not detected in the water-treated samples, highlighting its superior ability to extract matrix-bound bioactive molecules. These findings indicate that EDTA efficiently liberates bioactive dentine components associated with tissue repair and regeneration. Maintaining EDTA at 4 °C and applying it as a final rinse in vital pulp and regenerative endodontic procedures may provide a biologically favourable environment that supports healing and enhances treatment outcomes.7 0Item Restricted أثر القيادة الأخلاقية في تعزيز السلوك الإبداعي للعاملين دراسة تطبيقية للعاملين بمستشفى حراء العام(Saudi Digital Library, 2025) Alghamdi, Abdullah Abdulrahman; Hamed, Saeed Shaabanهدفت هذه الدراسة إلى تحليل أثر القيادة الأخلاقية في تعزيز السلوك الإبداعي لدى العاملين، وذلك من خلال تطبيقها على العاملين بمستشفى حراء العام، في إطار دعم التوجهات الحديثة في إدارة الموارد البشرية وتحقيق مستهدفات رؤية المملكة العربية السعودية 2030. اعتمدت الدراسة على المنهج الوصفي التحليلي، وتم جمع البيانات من عينة مكونة من 346 مفردة من العاملين والمديرين. أظهرت النتائج وجود مستويات مرتفعة لكل من القيادة الأخلاقية والسلوك الإبداعي، كما أكدت وجود علاقة ارتباط قوية وإيجابية ذات دلالة إحصائية بين المتغيرين. كما أوضحت النتائج أن أبعاد القيادة الأخلاقية مجتمعة تفسر نسبة كبيرة من التباين في السلوك الإبداعي بلغت 88.8%، مما يعكس الدور المحوري لهذا النمط القيادي في دعم الإبداع داخل بيئة العمل. وتبين أن أكثر الأبعاد تأثيرًا تمثلت في السلوكيات الوظيفية والمهارات القيادية. وفي ضوء هذه النتائج، توصي الدراسة بضرورة تعزيز ممارسات القيادة الأخلاقية، لا سيما في مجالات العدالة التنظيمية، والشفافية، والتدريب المستمر، بما يسهم في تحفيز العاملين على الابتكار وتوليد الأفكار الإبداعية. كما تؤكد الدراسة على أهمية تهيئة بيئة عمل محفزة تدعم الإبداع، بما يعزز كفاءة الأداء المؤسسي ويحقق الاستدامة في القطاع الصحي.1 0Item Restricted Exploitative Leadership, Deviant Behavior and its Relation with Nurses' Passion for Work at King Abdullah Medical City in Saudi Arabia(Saudi Digital Library, 2025) Alduaiji, Naif; Sleem, Wafaa; Elsabahy, HananExploitative Leadership, Deviant Behavior and its Relation with Nurses' Passion for Work at King Abdullah Medical City in Saudi Arabia1 0