Saudi Cultural Missions Theses & Dissertations
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Item Restricted دور الانماط القيادية الحديثة في الحد من التسرب الوظيفي للعمالة المتعددة الجنسية بالقطاع الصحي(جامعة القاهرة, 2023) الرشودي, فيصل; عبدالعزيز, عبدالتوابدور الأنماط القيادية الحديثة في الحد من التسرب الوظيفي للعمالة المتعددة الجنسية بالقطاع الصحي21 0Item Restricted Enhancing Saudi Undergraduate Students’ Employability by Integrating Translation Competences and CAT Tools into Translation Training Programmes(Queen’s University Belfast, 2024) Alfaisal, Hailah Abdulaziz; Blumczynski, PiotrThis thesis addresses the issue of the gap between translation training programmes at Saudi universities and the needs of the national translation market for highly skilled translators, and the implications of this gap, especially on the employability of translation programs’ students. The thesis aims to provide a fresh perspective on that issue and propose feasible and viable solutions for the problems created by the gap. The perspective of this thesis affirms the necessity of responding adequately to the market needs and demands but at the same time insisting on a comprehensive curriculum that includes all the recognized aspects of translation and one that is continuously updated to accommodate new insights and findings in translation research. The proposed solution emphasizes the inclusion in the curriculum of all the translation competencies, as well as the theoretical and historical aspects of translation, and integrating translation competences with Computer Assisted Translation (CAT). This integration should be stated as the core and the basis of translation study and all the translation activities in the program. The researcher used a mixed-method analysis which combined quantitative and qualitative methodologies in collecting and analysing the relevant data. The researcher used a (quantitative) questionnaire and a (qualitative) interview, and the joint input from the two methods allowed coverage of the stakeholders in the field being examined: students, instructors, heads of departments and deans of colleges in three Saudi universities—King Saud University, Imam Mohamed Ibn Saud Islamic University, and Princess Noura University. The questionnaire was administered to 217 students of translation in the three universities. The interviews were conducted with deans, heads of departments and instructors, each of whom had at least three years’ experience of teaching translation and some of whom also had administrative experience related to translation programmes. The findings of the research effort indicate that there is minimal, if any, real effort in the contexts where the research was conducted to bridge the gap between university study of translation and the translation market. The two essential aspects of translation, translation competence and translation technology, whose possession and mastery make up the qualifications currently required in the translation market, are not studied and practiced exhaustively in the translation programs: only linguistic competence is dealt with, and that is largely to improve the students’ English, with one or two translation technology courses being offered in English programmes. Insufficient and inadequate instruction and training in translation competencies and in translation technology, especially CAT, and the total absence of integration of competence and CAT in Saudi translation programs, have been identified as the main causes of the gap between university translation programmes and the translation market’s needs, and a major contributory factor to the unemployability of translation graduates. To bring this problematic situation to an end, translation programmes should make the integration of translation competence and CAT tools mandatory in all aspects of the translation programme and must stress to learners and trainers that the current and future status of the study and practice of translation will be based on this integration. Without this integration, translation curricula will be outdated and irrelevant to the needs of society and the translation market. Institutions must make sure that they have highly qualified instructors in translation and translation technology, as well as appropriate and adequate equipment for instruction and training in translation technology. It is essential that this equipment can be used effectively in the integration of translation competence and translation technology.8 0Item Restricted "The Impact of Intellectual Capital on The Creative Performance of Employees: The Mediating Role of Organizational Ambidexterity” "An Applied Study on Employees in The Ministry of Islamic Affairs in The King of Saudi Arabia "(Mansoura University, 2024) ALQahtani, Jabril Abdullah; Ashry, Tamer IbrahimThis current study aimed to determine the nature of the relationship between intellectual capital (human capital, structural capital, and relational capital), organizational Ambidexterity (exploitation and exploration), and employees' creative performance (idea generation, idea promotion, idea implementation). Additionally, it aimed to assess the impact of intellectual capital and organizational Ambidexterity on employees' creative performance. Data was collected through a questionnaire administered to (323) employees of the Ministry of Islamic Affairs in the Kingdom of Saudi Arabia. The questionnaire was designed using Google Drive, and data analysis was conducted using the statistical software Smart PLS4. The main findings of the study are as follows: The current study found The results of the current study indicate a statistically significant correlation between the study variables: intellectual capital (human capital, structural capital, relational capital), organizational Ambidexterity (exploitation, exploration), and creative performance employees (idea generation, idea promotion, idea implementation). The results of the study revealed a significant positive impact of intellectual capital, with its two dimensions (structural capital and relational capital), on organizational ambidexterity, with its two dimensions (exploration and exploitation). Additionally, a significant impact of human capital was found on the exploration dimension, while no significant impact of human capital was found on the exploitation dimension4 0Item Restricted Advancement of the Quantitative Blood Oxygenation Level-Dependent (qBOLD) MRI technique to improve clinical feasibility.(university of Nottingham, 2024) Alzaidi, Ahlam; Blockley, NicholasAbstract Quantitative Blood Oxygenation Level Dependent (qBOLD) MRI offers a noninvasive method for measuring brain oxygenation, with potential applications in various neurological conditions. However, its clinical implementation has been hindered by methodological inconsistencies and challenges in standardisation. This thesis aims to address these obstacles and advance the clinical applicability of qBOLD techniques through three studies. First, a comprehensive scoping review of the qBOLD literature was conducted. The review revealed four main qBOLD acquisition methods: multiparametric (mpqBOLD), asymmetric spin echo (ASE), gradient echo (GRE), and gradient echo sampling of spin echo (GESSE). Notably, mp-qBOLD emerged as the most used technique, likely due to its easier implementation in clinical settings. However, significant variability in the reversible transverse relaxation rate (R2') measurements across different acquisition techniques was observed, highlighting the need for standardisation. To address this variability and enable quality assurance, the second study focused on developing and validating a new qBOLD phantom using glass microspheres. A linear relationship between R2' contrast and glass bubble volume fraction was established, and the phantom demonstrated good reproducibility in construction and MRI measurements. Crucially, R2' measurements were consistent across different qBOLD acquisitions and MRI vendors and the phantom accurately replicated known in vivo R2' values for human brain tissue. However, challenges arose in matching the irreversible transverse relaxation rate (R2) values to the human brain range. The third study explored a combined hyperoxia-BOLD and mp-qBOLD (hmpqBOLD) approach to improve oxygen extraction fraction (OEF) estimation in a clinically translatable manner. This combined method overestimated OEF compared to an established technique, with values exceeding normal physiological ranges. In conclusion, this thesis has made important contributions towards addressing key challenges to the clinical implementation of qBOLD imaging, laying a solid foundation for future advancements in quantitative oxygenation imaging and its translation to clinical practice.7 0Item Restricted TRACKING THE SUCCESS OF CONVENTIONAL DECARBONISATION STRATEGIES with a Focus on CCS and CCUS(Saudi Digital Library, 2024) Alhazmi, Abeer; Robert Steinberger- WilckensThis research examines the effectiveness of traditional decarbonisation strategies, specifically focusing on Carbon Capture and Storage (CCS) and Carbon Capture, Utilisation, and Storage (CCUS) technologies. A comprehensive review evaluates the technological advancements, economic feasibility, and regulatory frameworks that have influenced the adoption of CCS and CCUS in the United Kingdom, the United States, the European Union, and Iceland. It also presents critical case studies of operational CCS/CCUS projects in these regions, offering a global perspective on the development of these technologies. The analysis encompasses optimistic and conservative projections for CCS deployment while evaluating the economic and storage capacity challenges inherent in the UK's decarbonisation plans. Moreover, it examines the cost analysis of various carbon capture methods, including Bioenergy with Carbon Capture and Storage BECCS and Direct Air Capture (DAC), to gauge the financial feasibility of these strategies and estimate the total decarbonisation cost for the UK’s energy system, projected at £3 trillion by 2050. The study concludes by estimating the UK's CO₂ storage capacity, suggesting its long-term feasibility based on current technological advancements and storage potential. This research underscores the importance of CCS and CCUS technologies in global decarbonisation efforts while addressing the uncertainties related to their long-term application and cost efficiency.21 0Item Restricted Analysing the Impact of Government Policy on Derivatives (Treasury Bills and Bonds) in the Banking Sector (Saudi Arabia)(Saudi Digital Library, 2024-09-10) Algandeel, Khalid Mohammed; Cheng, YanThis dissertation examines the effect of governmental policies on derivatives, particularly treasury bills and bonds, in the banking industry of the Kingdom of Saudi Arabia (KSA). This study is motivated by the lack of knowledge on how the governance structures affect these products' trading, use, and efficiency in the context of Saudi Arabia’s Vision 2030, with its focus on developing the financial sector. Following a qualitative secondary research methodology, this dissertation uses a systematic literature review to review the current literature and reports. The study shows that the policies are formulated by Saudi Arabia’s Central Bank (SAMA) and the Capital Market Authority (CMA) and are Sharia-compliant for ethical risk management. The following regulations have affected how Saudi banks operate and their financial outcomes by incurring compliance costs and flexibility in using derivatives. The challenges that are revealed during the study include the restrictions on certain sorts of activities and the rise of operating costs because of compliance. On the other hand, it also shows that more specific areas for banks’ development are related to the improvement of risk management and the usage of more sophisticated financial instruments, while realizing the existing legislation. The findings also show that while high standards of regulation and ethicality are attained by the regulations, such a system requires tactical adaptations to maintain the synergy between compliance and profit. Implications for the utilization of derivatives and improvement of the regulatory setting are also offered to encourage the sustainable development of Saudi Arabia’s banking industry.8 0Item Embargo Investigating the ability of statin-mediated ERK5 activation to protect cardiac microvascular endothelial cells and cardiomyocytes against the adverse effects of doxorubicin.(Saudi Digital Library, 0025-04-10) Almaghrabi, Shrouq; Cross, MichaelDoxorubicin is a widely used chemotherapeutic agent known for its efficacy against various cancers; however, its clinical utility is limited by cardiotoxic side effects that involve both endothelial dysfunction and direct cardiomyocyte damage. This doctoral research investigates the protective role of statins—specifically simvastatin and atorvastatin—in mitigating doxorubicin-induced toxicity through activation of the ERK5 signaling pathway. Using human and mouse cardiac microvascular endothelial cells (HCMECs and MCMECs), as well as human cardiomyocyte-like AC16 cells, the study demonstrates that statins restore ERK5 phosphorylation and upregulate vasoprotective transcription factors KLF2 and KLF4. These molecular changes were associated with decreased inflammatory marker expression, preserved tight junction integrity, and improved cellular viability. The findings highlight a novel therapeutic potential for statins in preserving cardiovascular health during chemotherapy and underscore the significance of ERK5 as a molecular target for cardioprotection.28 0Item Restricted Real-Time Anomaly Detection in TLS Encrypted Network Traffic Using Machine Learning and Zeek Integration(Saudi Digital Library, 2024-11-26) Alsuwaiyel, Ghalia; Trang, DoanThe rapid growth of encrypted network traffic has posed significant challenges for network security practitioners in detecting and mitigating malicious activities. Due to encryption, traditional anomaly detection methods that rely on inspecting packet contents are rendered ineffective. This addresses the critical need to detect anomalies within encrypted traffic without compromising privacy through decryption. This study proposes a machine learning-based approach for anomaly detection in encrypted network traffic. The research methodology encompasses dataset creation, feature extraction, model implementation, and evaluation. The CTU-13 dataset is enhanced through an automated labelling process. A comprehensive set of features, including connection-level, IP header, and TCP header features, is extracted to capture relevant information from TLS-encrypted network traffic for distinguishing between normal and malicious traffic. Multiple machine learning models, namely Random Forest, Weighted Scoring Model, and Isolation Forest are implemented and evaluated. The Random Forest model emerges as the best-performing model, achieving high accuracy in detecting anomalies within encrypted network traffic. The proposed system demonstrates its ability to analyse and process encrypted traffic in real-time by leveraging the capabilities of Zeek, a powerful network security monitoring tool. Integrating Zeek's real-time processing functionality with the Random Forest model, as the best performing model, enables prompt detection and response to malicious activities.10 0Item Restricted Theoretical Model for Nonlinear Photonic Topological Insulators(Saudi Digital Library, 2024) Alharbi, Ghada H.; Oh, Sang SoonOver the past few years, nonlinear topological photonics have garnered significant attention due to their intriguing properties and potential applications. Research in nonlinear topological photonics has revealed a variety of interesting phenomena, including nonlinearity-induced topological phase transitions, the formation of edge solitons, and the influence of the Kerr effect on the emergence of edge modes. This thesis focuses on investigating the spontaneous symmetry breaking of counter-propagating light, specifically between clockwise (CW) and counterclockwise (CCW) modes, within the framework of a one-dimensional Su-Schrieffer-Heeger (SSH) model consisting of optical ring resonators with Kerr nonlinearity. The approach in this thesis is based on the Lugiato-Lefever equation, which we extended to describe the field amplitudes in each ring resonator for both CW and CCW modes, considering small and large cross-phase modulation (XPM) strength. With a small XPM strength, one can demonstrate the optical bistability of the edge mode. However, with large XPM strength, when the coupling between CW and CCW modes becomes stronger, we observed complex dynamics in light propagation as well as optical bistability. Strong nonlinearity via XPM with the associated high pump intensity leads to excitation of the bulk modes for large detuning values, showing periodic and chaotic oscillations. As there are many parameters that can affect the spontaneous symmetry breaking of counter-propagating light through nonlinear SSH lattice, we will present phase diagrams depending on variant parameters: input intensity, XPM strength, coupling with sources, and intercell coupling coefficient. Then, we will compare the dynamic of the nonlinear SSH lattice with identical coupling coefficients. Further, to investigate the system in depth, we will apply a data-driven method called dynamical mode decomposition, which extracts spatial modes. The study of nonlinear topological photonics and spontaneous symmetry breaking in optical SSH lattices paves the way for applications such as robust optical isolators and circulators, all-optical memory and switching devices.8 0Item Restricted Exploring Factors Contributing Towards the Employee’s Turnover in Coffee Shop Sector in Newcastle, UK(Saudi Digital Library, 2024-08) Alghamdi, Nawwaf; 1104561541This study investigated perceptions of coffee shop employees' turnover intention in the city of Newcastle, UK. The study also highlighted key factors such as job satisfaction, career development and workload toward employee's turnover are discussed. A mixed-methods approach was employed, involving both quantitative and qualitative (naturalistic) data and data analysis. Participants included male and female coffee shop employees (N = 35) were recruited. Analysis of data from numerous sources (questionnaires, and semi-structured interviews) indicated differences among the employees in relation to perceptions of the three key factors that associated with the employees’ turnover intention ( job satisfaction, career development and extensive workload) but in general it was clear that the coffee shop sector in its current form is not meeting the employees’ needs and expectations. The findings of the study revealed the means of identifying those needs and the failure of the coffee shop sector to meet employees’ needs. Furthermore, the results showed that some evidence of employees' payment scale in various job levels being the potential factors of the causes to employee's turnover intention and its antecedents. The study provided recommendation and practical implications whereby practical solutions could be implemented and practical practices, to retain effective workers to reducing employees’ turnover process. To sum up, recommendation in which employers can provide a positive working environment that possess job satisfaction, a continuous career development, and devoting the normal amount of workload was also recommended. Thus, employees’ turnover intention reduced, and staff productivity will raise.9 0