Browsing by Author "Alshehri, Wejdan"

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Decision support system in radiation therapy treatment planning
(University of Southern California, 2024-08) Alshehri, Wejdan; Liu, Brent; Varghase, Bino; Zhou, Qifa
The radiation therapy treatment planning involves complex decision-making processes that rely heavily on the expertise of clinicians. This research introduces an innovative decision support system (DSS) designed to enhance personalized treatment recommendations in radiation therapy by leveraging advanced informatics methodologies. This research introduces an innovative decision support system for personalized radiation therapy treatment recommendations using advanced informatics methodologies. To compare patient profiles based on anatomical characteristics, it employs the integration of Gower's similarity measure and Earth Mover's Distance (EMD) analysis, enabling a nuanced assessment of dissimilarities. The DSS computes EMD values for spatial target signatures (STS) and overlap volume histograms (OVH) across multiple regions of interest (ROIs). The effectiveness of the EMD metric is in quantifying dissimilarities between radiation therapy plans is validated through a testing methodology. This involves randomly shifting the contours of organs at risk (OARs) and target volumes while maintaining their original shape and size, allowing us to evaluate the EMD metric's sensitivity to anatomical location variability, and its accuracy in identifying similar treatment plans. The implementation of this DSS involves the acquisition of diverse patient datasets from multiple institutions, ensuring the generalizability of the research outcomes. The data is efficiently organized and managed using MongoDB, a NoSQL database solution that allows for the storage of complex and varied data types.The successful integration of these advanced informatics methodologies paves the way for more personalized, precise, and effective radiation therapy treatment planning.
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WOMEN AND LEADERSHIP IN THE SPORT FEDERATION IN SAUDI ARABIA
(Saudi Digital Library, 2023-11-08) Alshehri, Wejdan; Musson, Hayley
Although Saudi Arabia has recently experienced significant changes that have positively influenced the role of Saudi women in its society, little is known about the empowerment of Saudi females to leadership positions within the sports federations of Saudi Arabia. This research, therefore, sought to identify the main limiting factors that Saudi female leaders face as well as possible measures to address gender inequality in Saudi sports federations from Saudi female leaders’ own perspectives. Online individual semi-interviews were conducted with five Saudi female leaders working in Saudi sports federations. Thematic analysis of the qualitative data revealed five major limiting factors faced by Saudi female leaders in Saudi sports federations: (1) family; (2) culture and traditions; (3) men; (4) other women and (5) lack of experience. These findings support and extend the existing literature by identifying new barriers related to sports domains such as appearing in the media or wearing the abaya on the field. Thematic analysis also revealed two sources of support by which these challenges might be overcome: (1) personal measures and (2) organisational measures. Participants spoke about how strengthening female leaders’ self-confidence and introducing a nominating committee can help to address inequality in the leadership positions of Saudi sports federations. It is recommended that future research seeks to replicate the current study on a larger sample to seek further verification of the findings. This exploratory research has demonstrated that the empowerment of Saudi females to leadership positions within Saudi sports federations is a rich topic that warrants further investigation.
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