Ratios of h-cores,h-tails and uncited sources in sets of scientific papers and technical patents

Five ratios R_H, R_T, S_H, S_T and S_Z derived from the three-part division of a set of sources in h-core, h-tail and uncited sources are defined. Dynamic changes in the three independent ratios R_H, S_H and S_Z are studied for six selected topics. Data about these topics are obtained from the Web of Science for scientific papers and Derwent Innovations Index for technical patents. It is observed that all R_H- and S_H-values decrease when the time span widens, while S_Z stays the same or increases; and that all R_H- and S_H-values for papers are larger than the corresponding values for patents. The shifted Lotka distribution is used in a theoretical interpretation of these empirical phenomena.     

Negotiating the context of online in-service training: ‘expert’ and ‘non-expert’ footings

This paper focuses on how people working in the Swedish food production industry engage in in-service training by means of computer-mediated communication. The empirical material consists of archived chat log files from a course concerning quality assurance and food safety hazards control in the preparation and handling of foodstuff. Drawing on Goffman and the concepts framing and footing, the analytical focus in this study is on how participants frame the web-based training activity, and what participation frameworks they enact in the activity. The analysis shows that the participants enact and shift footings when they write, and these shifts in footings result in a hybridity of framings. However, as the analysis also shows a thematic continuity and a progression in the online discussions are rendered possible as the participants draw on a participation framework of one more knowledgeable recipient (teacher and/or representative of the authority) and some less knowledgeable recipients (students and/or representatives of branch organisations). In this manner, shifts in footing are found to be a productive means of serving both specific communicative and pedagogical purposes in the online in-service training environment.     

Identifying different registers of digital literacy in virtual learning environments

In this paper social semiotics, and systemic functional linguistics in particular, are used in order to identify registers of digital literacy in the use of virtual learning environments. The framework of social semiotics provides means to systemize and discuss digital literacy as a linguistic and semiotic issue. The following research question was investigated in the paper: What different registers of digital literacy could be identified when students and teachers communicate and interact in a VLE?The research question was answered by, initially, an application of social semiotics to virtual learning environments, and its relation to the knowledge domains of everyday, specialized and reflexive digital literacy. This application was then further developed, using an analysis of a course specific use of a virtual learning environment in a case study. The study identified discrepancies between the digital literacies of teachers, designers and students. These discrepancies mean that a shared semiotic register was sometimes difficult to maintain. The conclusion is that the designers and teachers as co-designers of virtual learning environments need a better understanding of everyday digital literacy in order to design more sufficient learning environments. The paper shows that digital literacy must be considered as a situated practice, and that it concerns functional and communicative competencies rather than acquiring a set of technical skills.     

You can lead a horse to water but you cannot make him learn: Smartphone use in higher education

Smartphone technology is penetrating world markets and becoming ubiquitous in most college settings. This study takes a naturalistic approach to explore the use of these devices to support student learning. Students that had never used a smartphone were recruited to participate and reported on their expectations of the value of smartphones to achieve their educational goals. Instrumented iPhones that logged device usage were then distributed to these students to use freely over the course of 1 year. After the study, students again reported on the actual value of their smartphones to support their educational goals. We found that students' reports changed substantially before and after the study; specifically, the utility of the smartphone to help with education was perceived as favorable prior to use, and then, by the end of the study, they viewed their phones as detrimental to their educational goals. Although students used their mobile device for informal learning and access to school resources according to the logged data, they perceived their iPhones as a distraction and a competitor to requisite learning for classroom performance.     

Examining the antecedents of e-loyalty intention in an online reservation environment

Online reservation has increased significantly in recent years. Understanding how customers behave towards this technology is considered to be important to interested parties, such as travel agencies and tourism marketing managers, in order to enable them to improve their marketing strategies, which would, in turn, allow them to retain their customers. This paper presents findings about the antecedents of e-loyalty intention towards online reservation among 288 respondents in the United Arab Emirates. The research examines the role of e-service quality, hedonic and utilitarian values, satisfaction, and subjective norms in motivating loyalty intention towards online reservation. The results show that e-service quality has a significant influence on hedonic and utilitarian values, which, in turn, affect customer satisfaction. Moreover, satisfaction and subjective norms positively affect e-loyalty intention towards online reservation.     

A qualitative analysis of context-aware ubiquitous learning environments using Bluetooth beacons

The use of Bluetooth Low Energy (BLE) beacons is becoming widespread for context-aware learning environments. This technology can be used in indoor and outdoor settings such as museums, shops, home and schools in order to identify the location of learners and their contexts. Specifically, in the constructivist view of learning, learners can use such sensing technology for constructing knowledge and experiencing learning at any time, anywhere. However, exploration of such technology has been limited in the constructivist context-aware ubiquitous learning (U-learning) literature. For this purpose, the authors evaluated two android-based U-learning applications: one was an outdoor learning environment in a garden, the other was about locating books in a library. The applications were implemented and tested with school and university students. The qualitative results are presented in this article, and show how such sensing technology is promising for both pedagogical environments.     

Tide–surge interaction model including air bubble effects for the coast of Bangladesh

An estimate of water levels due to the interaction of tide and surge associated with a storm including air bubble effects is made along the coastal region of Bangladesh. For this purpose, a vertically integrated shallow water model in Cartesian coordinate system is developed introducing air bubbles and is solved using nested finite difference schemes. A fine grid model covering the region between 21°15′N to 23°N and 89°E to 92° E has been nested into a coarse grid model covering the region between 15°N to 23°N and 85°E to 95°E in the Bay of Bengal to incorporate all the major islands and coastal bending accurately. By applying tidal forcing through the southern open boundary of the coarse grid model appropriate tidal conditions are generated in the problem domain. Numerical experiments are performed with the help of the model to simulate water levels due to tide and surge interaction including air bubble effects associated with the tropical storm of April 1991. The model results are found to be reasonable and the model can be found to simulate higher water levels in the presence of air bubbles.