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The effectiveness of virtual environments (VEs) has often been linked to the sense of presence reported by users of those VEs. (Presence is defined as the subjective experience of being in one place or environment, even ...

An analysis of the characteristics of the use of virtual characters in hypermedia study materials is carried out. The results of using characters in study materials for the introductory course to Computer Science majors ...

The problem of information retrieval has attracted increasing attention in recent years. The amount of information sources via networks has grown and is still rapidly growing. Although existing search engines provide rap...

The frequent news reports of suicides among minors as a result of the bullying they have been subjected to are devastating. These fatal outcomes are a reality that shows there is still much to be done regarding the preve...

The work carried out in the thesis describes efficient virtual environments management. One of the main contributions is a middleware scheduling optimization based on Grid environments. Being the overall goal to get an o...

The paper presents a work executed in the virtual prototyping area. It is described as a procedure for the implementation of a CNC (Computerized Numeric Command) lathe prototype using software for virtual environment dev...

Remote interaction with immersive 3D environments with acceptable level of quality of experience has become a challenging and interesting research topic. Due to the high data volume required to provide a rich experience ...

This paper presents an analysis of the aspects to take into account when reformulating the teaching and learning processes of a first course of Algorithmics employing elements of Distance Education in a Web-based virtual...

I. Introduction 1. Self-Determination Theory: An Introduction and Overview II. Philosophical and Historical Considerations 2. Organismic Principles: Historical Perspectives on Development and Integration in Living Entiti...

Self-determination theory (SDT) is an empirically based theory of human motivation, development, and wellness. The theory focuses on types, rather than just amount, of motivation, paying particular attention to autonomou...

Virtual learning environments are widely used in distance education as the learning space of choice, mainly for interaction and collaboration. However, they generally don't provide means to integrate easily other learnin...

In the last decade, virtual reality (VR) systems have been used to enhance the visualization of design projects. The VR techniques allow to the designer interacting and modelling in a more intuitive and e cient way. Curr...

"The emergence of immersive virtual reality systems, which offer virtual environments of high interactivity for the user, become attractive to be incorporated into the classroom because they generate motivation in the ...

Hospitals nuclear pharmacies are sectors related to research, education and assistance of pharmacists and physicians, specially the ones who work with nuclear pharmacy. The education in nuclear pharmacy is one of the mos...

In the Distributed Software Development (DSD) is fundamental the use of methodologies, techniques and tools to support the communication and help teams physically distributed in the activities accomplishment. The adequat...

Adaptive systems behavior based on user models appear promising, mostly for complex environments such as mixed reality environments (MRE). An MRE comprises a virtual representation of the reality as well as physical obj...

In this paper a methodology for accesing scientific data repositories on data grids is proposed. This methodology is based on ontology specification and knowledge representation. The concept of Knowledge Perspective is i...

This paper surveys the field of augmented reality (AR), in which 3D virtual objects are integrated into a 3D real environment in real time. It describes the medical, manufacturing, visualization, path planning, entertain...

The use of new technologies does not mean that the applied education model is modern. New technologies can be used in a way that follows the traditional education model, with all its deficiencies. The collaborative educa...

The term Animated Systems has been introduced in the bibliography in reference to interactive dynarnic worlds simulations, composed of interacting independent objects [Tra96]. Simulation is a powerful tool because it al...

In a scene where stakeholders are geographically distributed, communication presents new challenges for research areas. Considering the characteristics of interpersonal communication and the virtual area where it is carr...

An important challenge when studying the semantics2 of programming languages is understanding the way syntactical constructions in high-level programming languages produce algorithms that are bound to the underlying virt...

Modern requirement engineering approaches divide the elicitation process in two different stages: one focused on analyzing the context where the system-to-be will be used and another centered on designing software soluti...

The growing processing power of standard workstations, along with the relatively easy way in which they can be available for parallel processing, have both contributed to their increasing use in computation intensive app...