A simple, fast, and versatile approach to the fabrication of outstanding surface enhanced Raman spectroscopy (SERS) substrates by exploiting the optical properties of the Ag nanoparticles and functional as well as organizational characteristics of the polymer brushes is reported. First, poly(2‐(dimethylamino)ethyl methacrylate) brushes are synthesized directly on glassy carbon by self‐initiated photografting and photopolymerization and thoroughly characterized in terms of their thickness, wettability, morphology, and chemical structure by means of ellipsometry, contact angle, AFM, and XPS, respectively. Second, Ag nanoparticles are homogeneously immobilized into the brush layer, resulting in a sensor platform for the detection of organic molecules by SERS. The surface enhancement factor (SEF) as determined by the detection of Rhodamine 6G is calculated as 6 × 106.

Our ongoing research is focusing on identifying and taxonomising the elements and the factors that affect learner engagement with virtual worlds when hybrid virtual learning models are used. Our main hypothesis links learner engagement with interactions, both in the virtual world and in the physical classroom. In order to examine this subject, there is an elaboration on and consideration of aspects such as the learners' prior experiences in the use of virtual worlds, their preconceptions about using them as a learning tool and the impact that the instructional designers' choices have on enhancing the opportunities for interactions. In this paper, we examine the impact that the orientation process has on university students who study computer science and have almost no experience in the use of virtual worlds. Our findings suggest that the orientation process contributed positively to students' smooth induction and that resulted in having meaningful and engaging interactions. Furthermore, students' simultaneous coexistence in both environments eliminated the drawbacks of each educational approach and broadened the network of interactions.

This research links learner engagement with interactions when Hybrid Virtual Learning models are used. Various aspects have been considered, such as learners’ prior experiences related to virtual worlds, their preconceptions regarding their use as a learning tool, and the impact that instructional designers’ choices have on enhancing the opportunities for interactions. In this article, the impact that educational and leisure games have on university students’ engagement is examined. The findings suggest that the use of game-like content can contribute positively to students’ engagement, without, however, having a spectacular impact on the learning process.

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PurposeThe purpose of this paper is to investigate the impact of culture on information security in a developing country's view.Design/methodology/approachTwo questionnaires adopted from the GLOBE project and OCAI were used to collect quantitative data on national and organisational culture. Also, a face to face semi‐structured interview was used to get insight into deep‐rooted issues concerning information security in the study environment. In addition, a previous study was used to find correlation of the data in this study.FindingsThe findings show that national culture has more influence than organisation culture on information security. We find that the dimensions that influence information security are Power Distance, Uncertainty Avoidance, In‐Group Collectivism, and Future Orientation.Research limitations/implicationsThis research was conducted in a public sector environment with employees thereby limiting external validity. Also, the population of the survey was small to make a generalisation of the findings. Also, the length of the questionnaire and complexity of questions put off many potential respondents.Practical implicationsCulture has impact on information security implementation and therefore the results imply that some consideration should be given when implementing information security models.Originality/valueThis study is important because it empirically correlates information security with cultural dimensions in a developing country's environment.