Saudi Cultural Missions Theses & Dissertations
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Item Restricted SMARTPHONE GNSS LOCALIZATION BY DDP AND PPP TECHNIQUES(University of Nottingham, 2020) Alluhaybi, Abdulaziz; Bingley, Richard; Moore, TerryThis dissertation illustrates the performance of a dual-frequency GNSS chip smartphone in GNSS localization in motion. The GNSS localization was performed using the DDP and PPP methods. The smartphone was in motion on a railway and observed the satellites' data for approximately 90 minutes. The smartphone dual-frequency data was processed as single frequency and code measurements due to the limitations of the GNSS processing software and the smartphone antenna. The accuracy of the smartphone DDP and PPP results were at meter level and very similar to each other, such that the difference did not exceed 1 m in all comparison aspects. In contrast, the difference was vast between the smartphone PPP and a geodetic receiver PPP that was running synchronized with the smartphone on the railway; the geodetic receiver PPP provided an accuracy of centimetre which could be possible from the smartphone in the future, but clearly is not yet possible.22 0Item Restricted The relationship between Musculoskeletal Disorders and Pain, and Smartphone use amongst adolescents: systematic review(Saudi Digital Library, 2023-11-19) Alanazi, Basmah; Evans, TraceyIntroduction: Over the last few years, smartphone usage, particularly amongst adolescents, has risen exponentially. This has led to concern regarding the link between smartphone utilisation and musculoskeletal issues. The latter could have a detrimental impact on the growth, normal development and well-being of adolescents. Currently, there are few reviews which have investigated the influence of using smartphones on the musculoskeletal system, and specifically, in the adolescent population. Aim: The aim of this research was to perform a systematic review with respect to contemporary publications on musculoskeletal pain and disorder related to the usage of smartphones in adolescents. Methods: A literature search was carried out in a number of electronic databases in order to recognise publications that could be identified using keywords relating to the use of smartphone, musculoskeletal symptoms, such as pain or discomfort, and exposures. The identified publications underwent screening, pertinent information was retrieved and an evaluation of the quality of the study methods used was performed. Narrative synthesis was presented of the study findings owing to the lack of uniformity between studies. Results: Eight quantitative studies were included and were rated as moderate (n=7) and high (n=1) quality. The findings of the review indicated that long durations of smartphone utilisation are linked with musculoskeletal system pain and disorder; this was a consensus opinion amongst all the included studies. The greater the number of hours a smartphone was used for; the more anatomical sites were determined to be impacted by musculoskeletal pain. Reviewed studies indicated that the neck was the most frequent source of discomfort, but that the shoulder, back, arm, elbow and wrist were also affected. Discussion: It was determined from this systematic review that there was only limited evidence and low number of studies linking the use of smartphones, together with a number of parameters relating to their utilisation, such as degree of use, length of time used and tasks performed, with symptoms and discomfort in the musculoskeletal system. To some extent, these findings were attributed to the predominantly moderate quality of evidence presented in the single case-control study, and in the seven cross-sectional studies encompassed within the review. The review did not include any longitudinal epidemiological publications. Nevertheless, the results obtained from this systematic review offer an improved comprehension of the relationships between musculoskeletal pain and disorder and the use of smartphones, an activity which has become a component of the daily life of most adolescents. The data presented could be incorporated into recommendations and interventions in order encourage the judicious usage of smartphones within this population, and could be of value to scientists, policy-makers, teachers, parents and the adolescents per se.19 0Item Restricted Examining Academics and Students Attitudes to Mobile-learning in a Transformative University in the Kingdom of Saudi Arabia: a study of Imam Abdulrahman Bin Faisal University(Saudi Digital Library, 0023-10-27) Alshehri, Eman; Preston, Greg; Buchanan, RachelAlthough there is a growing interest in mobile-learning and its potential benefits in higher education, limited research has investigated cross-contextual mobile-learning issues such as university technology policies, usage levels, and practices in relation to students' gender, contextual, educational, and gender-based mobile-learning attitudes. This study was undertaken as a case study at Imam Abdulrahman Bin Faisal University (IAU), to investigate the attitudes of both academic staff and students towards the adoption of mobile-learning with Smartphones. The first purpose of this study was to explore the current Smartphone policies, level of usage, preferred learning activities by students and academics at IAU. The second purpose of the study was to investigate the student’s and academics’ attitudes and perceptions toward using their Smartphones as learning and teaching tools, with particular regard to the challenges and/or enablers that they may encounter. This study used an adapted version of the Technology Acceptance Model (TAM) and a sequential mixed methods design to collect the data using online surveys with students (N=325), and semi-structured interviews with academics (N=21). Regression analysis was used to analyse the online surveys (quantitative data), and a thematic analysis was used to analyse the semi-structured interviews (qualitative data). The study findings revealed that both students and academics generally have a positive attitude toward the use of Smartphones in the learning environment at IAU. Around 98% of students at IAU use Smartphones every day for learning, while the use by the academics was substantially less. From the nine measured variables, only four predictors had a significant influence on students’ attitudes to mobile-learning: self-efficacy, enjoyment, perceived ease of use, and mobile-learning preferences. For academics, the most frequently reported challenge they faced when adopting mobile-learning was the lack of policies and regulations governing their use. This study contributes to the body of knowledge on mobile-learning in higher education and offers useful insights into how Smartphones are currently used by students and academics at IAU and the best practices for implementing Smartphones as learning and teaching tools.74 0