The paper examines the persuasive effect of explanations on the intention of users to use recommended items. For the needs of the present study, a movie Recommender System was built so as to elicit participants' preferences about movies and then a movie is recommended in order to investigate the effect of the application of Cialdini's Influence Principle(s), implemented as recommendation explanations, on the users' intention to watch the movie. The experimental results of the study suggest that if a Recommender System provides persuasive explanations for a product/service that is close to a user's preferences and tastes then it affects his/her behaviour.

Innovative services consist the main point of interest so for academics as for the business world. The basic objective of this paper is to demonstrate the way that innovative services may change the "consumer experience" in the airport environment. In the following lines we describe the procedure of designing innovative services, so for consumers' and visitors' needs as for the needs of the firms which are operated in the airport environment. In order to achieve this goal, we used so the qualitative approach (such as focus groups), as the quantitative approach (collection of 1106 questionnaires).

Tooth loss leads to bone resorption and, in some cases, to insufficient alveolar bone, for implant placement. To provide adequate bone volume and ensure an aesthetic result, Guided Bone Regeneration (GBR) often is prerequisite in order to increase alveolar ridge vertically and horizontally. The purpose of this poster is to analyze a case with extended bone loss in the posterior mandible and to present the clinical procedure and outcome of a vertical ridge augmentation followed by the implant placement. An extended vertical bone augmentation was performed, using autogenous graft combined with allograft and xenograft, stabilized by a fibrin sealant made from pooled human plasma. To protect the graft, a non-resorbable high-density PTFE membrane with titanium frame was used, fixed in place with titanium pins. Seven months later, a second surgery took place for the membrane removal and the guided implant placement. Furthermore, due to limited attached keratinized tissues, a free gingival graft from the palatal was placed to the area. After the period of osseointegration, and the effective increase of the attached gingiva, a digitally made monolithic zirconia implant-supported bridge was designed and successfully restored the edentulous area. The rehabilitation of edentulism using implants requires a sufficient bone volume for the purpose of long-term prognosis. GBR is one of the most reliable and predictable methods to reconstruct alveolar ridge even in cases with extended bone loss. However, extended vertical bone augmentation constitutes a serious clinical challenge and has to be carefully executed following the contemporary protocols.