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Author(s):  
Sawsen Lakhal ◽  
Géraldine Heilporn ◽  
Hager Khechine

The aim of this study was to verify if external factors influence persistence in online courses in higher education. These external factors, borrowed from Kember’s (1995) model, included some students’ characteristics; cost benefits; social integration of adult students (enrolment encouragement, study encouragement, and family support); and external attribution (insufficient time, events hindering study, and distractions). Data were collected among a sample of 835 students from two Canadian French-Speaking Universities (n1 = 468 from University One and n2 = 367 from University Two) using an online questionnaire. The questionnaire included items borrowed from The Distance Education Student Progress (DESP) inventory (Kember et al., 1992). The multiple linear hierarchical regression analysis revealed that students’ characteristics and some of the external factors had an effect on students’ persistence in online courses and that the most important factor in predicting students’ persistence is cost benefits. These analyses were also conducted by university, gender, and age groups. Except for cost benefits, the results indicated different patterns of strength and significant relationships between groups.


Author(s):  
Susan Williams ◽  
Monika Nitschke ◽  
Berhanu Yazew Wondmagegn ◽  
Michael Tong ◽  
Jianjun Xiang ◽  
...  

2021 ◽  
Author(s):  
Moncef Krarti ◽  
Mohammad Aldubyan

This paper describes an optimization-based approach to evaluate measures providing peak electricity demand reduction cost benefits for Saudi residential buildings. These measures can be categorized as energy efficiency (EE) and renewable energy (RE) measures. Specifically, this paper models the existing Saudi building stock using 56 housing prototypes based on types, vintages and locations.


2021 ◽  
Author(s):  
Nelson Silva Pinto

Game-theory based models are used to understand rules that animals use to settle contests over indivisible resources. However, the empirical literature of contests indicates controversial support to models, with some species supporting different models and other species showing no support to any model. Since strategies used to resolve contests may have different associated costs, it is possible that different conditions have determined the evolution of distinct assessment strategies used by animals. We used an agent-based model to explore the importance of the following conditions: resource availability, probability of reproduction with resource, and damage costs on evolution of assessment strategies. We used self- and mutual-assessment models as a heurist framework to build agents with different assessment strategies. In our model, agents competed for resources in scenarios with different combinations of resource availability, probability of reproduction with resource, and damage costs. We found that agents following the self-assessment with damage strategy were prevalent in scenarios with no probability of reproduction without the resource, independently of other variables. We also found that agents following the non-aggressive strategy occurred in all scenarios. However, agents using the non-aggressive strategy were prevalent only in scenarios with probability of reproduction with the resource. Finally, we observed that agents using mutual-assessment occurred only in a scenario with high risk of damage, low availability of resources, and with probability of reproduction without the resource. These results indicate that agents following the self-assessment with damage and non-aggressive strategies may be able to stay at most scenarios.


2021 ◽  
Author(s):  
◽  
Soklay Ky

<p>Employees‟ behavior of using personal cloud storage at the workplace might put corporates at risk. This trend has been happening globally and known as consumerization of personal cloud storage. This research reports on the state of this trend in New Zealand corporates. A mixed methods approach was employed with data collection through online anonymous surveys and an online focus group. It was found that personal cloud storage prevails widely throughout the corporates involved in the study. In light of earlier studies in IT consumerization and recent market researches on personal cloud storage, this study identifies many drivers, benefits and challenges of IT consumerization which remain significant in personal cloud storage consumerization, and additionally divulges new factors not previously surfaced in prior literature and publications. The results reveals that its challenges far outweigh its benefits and that the driving forces born within organizations are as considerably significant as those in the external environment. Resulting corporate risks such as security, support, regulatory obligations, data governance and policies are top-critical amongst other challenges with which corporates have to confront. Regardless of those challenges, corporates might gain several benefits, namely employee engagement, productivity, business agility and cost benefits to some extent.</p>


2021 ◽  
Author(s):  
◽  
Soklay Ky

<p>Employees‟ behavior of using personal cloud storage at the workplace might put corporates at risk. This trend has been happening globally and known as consumerization of personal cloud storage. This research reports on the state of this trend in New Zealand corporates. A mixed methods approach was employed with data collection through online anonymous surveys and an online focus group. It was found that personal cloud storage prevails widely throughout the corporates involved in the study. In light of earlier studies in IT consumerization and recent market researches on personal cloud storage, this study identifies many drivers, benefits and challenges of IT consumerization which remain significant in personal cloud storage consumerization, and additionally divulges new factors not previously surfaced in prior literature and publications. The results reveals that its challenges far outweigh its benefits and that the driving forces born within organizations are as considerably significant as those in the external environment. Resulting corporate risks such as security, support, regulatory obligations, data governance and policies are top-critical amongst other challenges with which corporates have to confront. Regardless of those challenges, corporates might gain several benefits, namely employee engagement, productivity, business agility and cost benefits to some extent.</p>


2021 ◽  
Author(s):  
◽  
Nick Smith

<p>Homes with single glazing represent a large majority of the New Zealand housing stock. With the recent changes to the NZ Building Code Clause H1 Energy Efficiency, new homes require higher glazing thermal performance. This will lead to an increased need for cost effective methods to improve window thermal performance in existing single glazed homes without completely replacing the windows, which includes 'secondary' glazing. There are several secondary glazing options available including 'stick-on' plastic glazing as well as aluminium framed glass solutions that are installed inside the existing joinery. Secondary glazing is marketed as a cost effective alternative to insulated glazing units, providing both improved acoustic and thermal insulation to existing windows. There is little information regarding the in-use performance and cost benefits of secondary glazing in New Zealand. This thesis explores the efficacy of the secondary glazing products when installed in existing single pane frames. A guarded hotbox was used to make thermal resistance measurements on a typical single glazed aluminium window with timber reveal liner. Four common secondary glazing systems were retrofitted into the window - (1) thin plastic film; (2) magnetically-attached acrylic sheet; (3) aluminium framed secondary glazing; and (4) aluminium framed low emissivity (low-E) secondary glazing. Models of 'typical' New Zealand homes created in the ALF building thermal simulation programme were used to explore the heating energy savings and cost benefits provided by the different secondary glazing systems in a range of locations. Of the tested products, the low-E secondary glazing produces the largest cost-benefits. At current energy and material costs, secondary glazing was found to not be a financially viable solution in warmer climates such as Auckland. In cooler climates such as Christchurch and Dunedin, secondary glazing was found to be a cost effective retrofit alternative for existing single glazed homes</p>


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