Browsing by Issue Date, starting with "2022-05-30"
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- Smartphone use side-by-side with burnout: mediation of work-family interaction and lonelinessPublication . Gonçalves, Sónia P.; Vieira dos Santos, J.The main objective of this investigation is to study the relationship between compulsive smartphone use and burnout, and the potential mediating effect of negative work–family interaction and loneliness in this relationship. An online questionnaire was applied to a sample of 228 Portuguese workers, from various sectors, aged between 19 and 60 years (mean = 32.32); (standard deviation = 9.25), mostly female (64.5%; n = 154). The data were analyzed through descriptive and inferential statistics. The main results show that the compulsive use of the smartphone is positively and expressively related (β = 0.258; p < 0.001) to burnout, with compulsive users reporting more symptoms of burnout. In addition, this study shows the mediating power of negative work–family interaction and loneliness, in the relationship between compulsive smartphone use and burnout, with this effect being positive and significant (B = 0.072; 95% CI [0.026; 0.145]; B = 0.068; 95% CI [0.008; 0.141]). These results highlight the need for individuals and organizations to use smartphones with caution, as well as reinforce that companies must develop a way to prevent and treat possible risk factors associated with this phenomenon.
- Event processing in web of thingsPublication . Mazayev, Andriy; Correia, N.The incoming digital revolution has the potential to drastically improve our productivity, reduce operational costs and improve the quality of the products. However, the realization of these promises requires the convergence of technologies — from edge computing to cloud, artificial intelligence, and the Internet of Things — blurring the lines between the physical and digital worlds. Although these technologies evolved independently over time, they are increasingly becoming intertwined. Their convergence will create an unprecedented level of automation, achieved via massive machine-to-machine interactions whose cornerstone are event processing tasks. This thesis explores the intersection of these technologies by making an in-depth analysis of their role in the life-cycle of event processing tasks, including their creation, placement and execution. First, it surveys currently existing Web standards, Internet drafts, and design patterns that are used in the creation of cloud-based event processing. Then, it investigates the reasons for event processing to start shifting towards the edge, alongside with the standards that are necessary for a smooth transition to occur. Finally, this work proposes the use of deep reinforcement learning methods for the placement and distribution of event processing tasks at the edge. Obtained results show that the proposed neural-based event placement method is capable of obtaining (near) optimal solutions in several scenarios and provide hints about future research directions.
- Destination image, tourist satisfaction and destination loyalty: a case of cross river state, NigeriaPublication . Uwajubogu, Chinedum Ogechi; Agapito, Dora; Guerreiro, ManuelaIn a contemporary context, tourists are confronted with a complex choice of tourist destinations for holidays due to the available multiple options. The number of destinations keeps growing yearly and the level of competition for attracting tourists strengthens. Located in the Southern part of Nigeria, Cross River State has been a major tourism centre and the destination is considered a nation’s paradise, presenting diverse tourism activities to tourists. Cross River received several outstanding tourism achievements over the years and embraces a relevant potential for tourism development. However, few studies approach destination image, tourist satisfaction and destination loyalty altogether in the southern part of Nigeria, Cross River. Some studies focused mainly on tourists’ satisfaction with festival tourism of Cross River, while others mainly centred on the Obudu Mountain Resort and assessed the level of tourist’s patronage to the resort. Thus, the present study aims to examine the destination image, tourist satisfaction and destination loyalty in the context of Cross River State. A questionnaire instrument with closed and open-ended questions was employed as the means for the data collection. This quantitative-based study used 209 valid questionnaires collected onsite. In general, the findings revealed positive perceptions about the destination image of Cross River. There is a positive correlation between destination global image, tourists’ global satisfaction, and tourists’ loyalty towards the destination. The findings of the study contribute to strategic marketing decisions for destination managers and marketers in Cross River.