Re-examining the Unified Theory of Acceptance and Use of Technology (UTAUT): Towards a Revised Theoretical Model

YesBased on a critical review of the Unified Theory of Acceptance and Use of Technology (UTAUT), this study first formalized an alternative theoretical model for explaining the acceptance and use of information system (IS) and information technology (IT) innovations. The revised theoretical model was then empirically examined using a combination of meta-analysis and structural equation modelling (MASEM) techniques. The meta-analysis was based on 1600 observations on 21 relationships coded from 162 prior studies on IS/IT acceptance and use. The SEM analysis showed that attitude: was central to behavioural intentions and usage behaviours, partially mediated the effects of exogenous constructs on behavioural intentions, and had a direct influence on usage behaviours. A number of implications for theory and practice are derived based on the findings

An examination of factors that influence the number of information security policy violations in Qatari organizations

Purpose: This paper aims to investigate factors that impact the number of information security policy violations in Qatari organizations and to examine the moderating effect of Hofstede's cultural dimensions on the relationships between the independent factors and the number of information security policy violations. Design/methodology/approach: Grounded in related theories from the fields of criminology, behavioral psychology and theory of planned behavior, two components that affect the number of information security policy violations were identified.Aquantitative approach was used by developing a questionnaire survey to collect the data. The research model was tested using 234 employees from different Qatari organizations. Findings: The results of the study indicate that trust, the impact of implementing information security policy on work environment and the clarity of the scope of the information security policy were significant factors in predicting the number of information security policy violations. The findings also reveal that cultural dimensions such as uncertainty avoidance and collectivism moderate the relationships between trust, clarity of policy scope and impact of information security policy on work environment and the number information security policy violations. Research limitations/implications: The generalizability of the results is limited because the sample of the study was drawn from only one developing country. Therefore, a plausible future research could be testing the proposed model in many developing and developed countries. Practical implications: The paper includes practical implications for developing and implementing security measures and policies in diversified work environments. Originality/value: This study fulfils a gap in investigating the factors that influence the number of information security policy violations and the moderating effect of cultural dimensions in developing countries such as Qatar.Scopu

The Impacts of System and Human Factors on Online Learning Systems Use and Learner Satisfaction

Success in an online learning environment is tied to both human and system factors. This study illuminates the unique contributions of human factors (comfort with online learning, self-management of learning, and perceived Web self-efficacy) to online learning system success, which is measured in terms of usage and satisfaction. The research model was tested employing SEM on a sample of 674 college students enrolled in at least one online course. The factors of comfort with online learning and perceived Web self-efficacy were significant predictors of satisfaction. Comfort with online learning was significant in predicting usage. The impact of demographic variables was examined.Wiley Online librar

Synthesis, Characterization and Catalytic/Antimicrobial Activities of Some Transition Metal Complexes Derived from 2-Floro-N-((2-Hydroxyphenyl)Methylene)Benzohydrazide

Background: In the last few decades, the field of coordination chemistry has grown very fast, especially in the fields of pharmaceutical, biological and catalytic studies. In ancient times, metals were thought to be beneficial to health issues but nowadays the link between organic–metal substances and different industrial and medicinal properties is well established. Methods: A Schiff base ligand (2-fluoro-N’-[(E)-2-hydroxyphenyl) methylene] benzohydrazide) was reacted with a series of transition metals to produce complexes with a general formula [ML2(NO3)]NO3.nH2O, where [M = Zn, Cu, Co, Ni, Mn], and [n = 0, 1], corresponding to complexes 1–5. The nature of the bond was determined in the solid state and solution using spectral studies (1H-NMR, 13C-NMR, UV-Vis and FT-IR), TGA, EPR, elemental analysis and molar conductivity measurement. Results: All M(II) complexes are 1:1 electrolytes, as illustrated by their molar conductivities. The results demonstrate that all synthesized complexes present a coordination number of six by the bonding of the bidentate ligand via its azomethine nitrogen atoms and carbonyl oxygen atoms, as well as with one nitrate group as a bidentate ligand via two oxygen atoms. The DPPH radical scavenging technique was used to investigate the antioxidant activities of the ligand [L] and the metal complexes. It is clear that the activity increased in M (II) complexes compared to the Schiff base ligand. Complex 5 showed the highest activity, with an excellent activity of 90.4%, while complex 4 showed the lowest. The antibacterial activities of the Schiff base and its complexes have been examined against various pathogenic bacteria to measure their inhibition potential. Complex 2 showed remarkable activity against Gram (+) bacteria and fungi with an MIC value of 8 μg/mL, which is greater than that of the positive controls, oxytetracycline and fluconazole. The catalytic activities of all complexes were examined in the oxidation of aniline, and the results illustrated that all complexes had a 100% selectivity in producing only azobenzene, and complex 4 had the highest activity (91%). Conclusion: The obtained results from this study show that the antioxidant and antibacterial properties of both the Schiff base ligand and its derived complexes are promising, with some demonstrating remarkable activities. Moreover, the catalytic activities and selectivities of the prepared complexes in aniline oxidation are interesting