Saudi Cultural Missions Theses & Dissertations
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Item Restricted The Impact of Leadership Styles on Project Team Performance in Educational Settings: A Comprehensive Analysis(Saudi Digital Library, 0006-11-24) Bajabir, Anas; Barber, MartinThis study investigates the impact of leadership styles on project team performance within Nigerian university settings. The study uses a number of different studies to look at how democratic, authoritarian, and laissez-faire leadership styles affect staff morale, teamwork, and how information is shared in schools. With a systematic literature review method, this study looks in depth at how different leadership styles affect how well teams do their work. The reviews divide studies into groups based on how well they respond to two basic research questions. This helps us see how different types of leadership affect project teams in Nigerian universities in a more organised way. The results clearly show that democratic leadership is preferred in Nigerian colleges. This is because it encourages active participation, job happiness, and teamwork, all of which improve the organization's performance. Autocratic and laissez-faire styles, on the other hand, had various results. Letting things happen on their own sometimes made employees lose faith in management, while letting things happen naturally worked well in some places, like university libraries. The study finds that leaders who are open and adaptable, with a background in strategic planning and a focus on meeting the needs of the company, are the best way to get teams to work better in schools. These findings are very important for university managers, policymakers, and educational leaders in Nigeria. They show how important it is to have leadership training and development programs that promote flexible, welcoming management styles. The study also discusses about some problems, like limited access to data and differences in how institutions do things, that make it hard to use the results in other situations. The paper suggests that more research be 6 done on how customised leadership development can improve the performance and behaviour of teams in a range of academic settings.6 0Item Restricted FACTORS PREDICTING TEACHER BURNOUT: THE MODERATION ROLE OF PERCEIVED SOCIAL SUPPORT(Journal of Special Needs Education (NASE Malaysia), 0019-12-20) ALSAGOOR KHALID; Prof. Dr.Loh Sau CheongThe terminal objectives of this study are to examine: the direct effects of stressors on teacher burnout and the moderation effects of social support on the relation between stressors and teacher burnout. A total sample of 202 special education teachers in the Kingdom of Saudi Arabia completed a 68-item digital countrywide survey questionnaire delivered through email to all special education teachers. For current study, hypotheses were tested based on structural equation modelling (SEM). Results revealed that: (1) role overload had shown significant direct effects on the three dimensions of teacher burnout; (2) role ambiguity had shown significant direct effects on the three dimensions of teacher burnout; (3) role conflict had shown significant direct effects on depersonalization and decreased personal accomplishment; (4) no moderation effect for social support on the relationship between stressors and the three dimensions of teacher burnout.13 0Item Restricted THE ANTIM ICROBIAL ACTIVITY OF COMMIPHORA MOLM OL (MYRRHA) EXTRACT(Long Island University, 0019-07-15) Alenezi, Tahrir; Bhattacharjee, MrinalThe Commiphoramolmol (myrrha) has been used as a traditional medicine for centuries in different cultures. An ethanol extract o f myrrha was evaporated under vacuum to obtain an oil. A 20% solution o f this oil in ethanol was used to determine antimicrobial activity against the Gram-positive bacteria S. aureus, the Gram-negative bacteria, E. coli, MVlONal, and fungi, (yeast), Saccharomyces cerevisiae. The MIC forÆ’. coli and S. aureus were determined on phosphate buffer since the oil did not show antibiotic activity on growing cells. The MIC o f myrrha oil in phosphate buffer for E. coli was 0.56% (5.6 mg/ml) and for S. aureus was 0.1% (1 mg/ml). However, the oil could be used to kill cells in a nutrient-rich medium provided growth o f the bacteria is first stopped using a bacteriostatic antibiotic such as Chloramphenicol. The results show that chloramphenicol enhanced the antimicrobial activity o f myrrha oil. Zone o f inhibition test shows myrrha extract has antibacterial property against S. aureus. Furthermore, the antifungal activity of myrrha extract was prodigious since most o f the cells were killed in 10 minutes at a dose o f 0.05% (0.5 mg/ml) o f myrrha extract. Repeated attempts to obtain an E. coli or S. aureus strain that is resistant to myrrha oil were unsuccessful. A possible explanation o f this can be that myrrha oil is a membrane acting antibiotic. In conclusion, the results o f this study suggest that myrrha extract could be a prom ising antibacterial and antifungal drug.39 0Item Restricted Partial Schauder estimates for second-order elliptic systems(Wollongong University, 0018-07-17) Alharthi, Saleh; Du, KaiSecond order elliptic equations and systems are among the most important types of partial differential equation(PDEs). The classical Schauder’s theory for this type of equations has played an essential role in the study of linear and non-linear elliptic equations, which reveals that if all the coefficients and data are Holder continuous in all variables, then the solutions and all their derivatives up to second order will also be Holder continuous in all the variables. The main objective of this research is to obtain a class of pointwise estimates, called partial Schauder estimates, for second-order elliptic systems. The desired result will show that if the inhomogeneous term f ^a is Holder continuous in the x_n direction, then the u_x , ...,u_x_n derivatives are also Holder continuous.143 0