Search results for "Virtual"
showing 10 items of 1485 documents
A Multiagent Framework to Animate Socially Intelligent Agents
2007
This paper presents a multiagent framework designed to animate groups of synthetic humans that properly balance task oriented and social behaviors. The work presented in this paper focuses on the BDI agents and the social model integrated to provide socially acceptable decisions. The social model provides rationality, to control the global coordination of the group, and sociability, to simulate relations (e.g. friends) and reciprocity between members. The multiagent based framework has been tested successfully in dynamic environments while simulating a virtual university bar, where several types of agents (groups of waiters and customers) can interact and finally display complex social beha…
Future Research Directions on Web-Based Educational Systems
2018
Over the last decade, following the rapid progress of Information and Communication Technology (ICT) and directly linked to the requirements of the Information Society, Web-based education has turned into an essential branch of educational technology. Although the traditional educational systems continue to improve, the gradual transition to Semantic Web, that is currently taking place, facilitates the emergence of new opportunities for improving the quality of educational processes. The distributed instruction, the explosive expansion of social networks and the significant increase in the number of mobile users represent phenomena that have led to new trends in the evolution of educational…
Human Capital and E-Learning
2009
Companies are increasingly conscious of the fact that the achieving of their objectives, together with the improvement of their competitive advantages, depends on the appropriate management of the human factor. The dynamism and strong competition that characterize the business world make it increasingly necessary to introduce a system of human resources to allow the exploiting of the knowledge and skills of both people and teams, thus encouraging their learning capacity. In this context, e-learning is becoming established as a flexible and quick way of improving the acquiring of knowledge and skills within a company. The rapid growth and expansion of e-learning, together with the failure of…
Meanings of communication technology in virtual team meetings : framing technology-related interaction
2018
Communication technology is an essential part of virtual teams in working life. This article presents a qualitative study on the meanings of communication technology in virtual team meetings. The study was conducted by examining frames of technology-related virtual team interaction. Observational data was gathered from six expert team meetings. Technology-related communication episodes (N = 88) were identified from team interaction and then analyzed by means of frame analysis. Four frame categories were found: the practical frame, work frame, user frame, and relational frame. Team members talked about technological properties and functions as well as giving and receiving technological guida…
Linux un Docker konteineri kā sistēmas virtualizācijas rīki
2015
Šobrīd arvien vairāk attīstās mākoņskaitļošana, un līdz ar to aug arī nepieciešamība pēc labām un efektīvām sistēmas virtualizācijas iespējām. Līdz šim pārsvarā tiek izmantota pilna sistēmas virtualizācija ar virtuālajām mašīnām, bet to realizācija prasa daudz laika un datora resursu. Šī darba mērķis ir izpētīt konteinerus kā sistēmas virtualizācijas iespēju un apsvērt tos kā alternatīvu virtuālajām mašīnām, kā arī izpētīt un mēģināt ieviest kādu no konteineru realizācijas iespējām. Vēl vajadzētu mēģināt integrēt konteinerus mākonī. Darba gaitā ir iepazīti Linux un mazāk Docker konteineri un to realizācijas iespējas, kā arī īstenota konteineru izveide un pārvaldīšana. Papildus tam ir izpētī…
Laparoscopic assistance by operating room nurses: Results of a virtual-reality study
2016
Abstract Background Laparoscopic assistance is often entrusted to a less experienced resident, medical student, or operating room nurse. Data regarding laparoscopic training for operating room nurses are not available. Objectives The aim of the study was to analyse the initial performance level and learning curves of operating room nurses in basic laparoscopic surgery compared with medical students and surgical residents to determine their ability to assist with this type of procedure. Design The study was designed to compare the initial virtual reality performance level and learning curves of user groups to analyse competence in laparoscopic assistance. Participants The study subjects were…
Management of Bleeding Complications in Virtual Reality Laparoscopy
2019
The aim of this study was to compare the impact of induced bleeding complication training with regular training on a virtual reality laparoscopic (VRL) simulator. Although bleeding complications occur rarely during laparoscopic surgery, they usually arise without warning and may have severe consequences for the patient because complication management training is not currently widespread. Third-year medical students (n = 41) were randomly selected for 2 curricular courses on how to perform a bimanual task on a VRL simulator. Both the regular training group (RTG) and the induced bleeding complication training (ICT) group performed 2 regular training sessions and 9 training sessions. For the I…
AR METHODS FOR THE VISUALIZATION OF THE LOST MARBLE “TRIBUNA” IN THE MAIN APSE OF THE CATHEDRAL OF PALERMO
2022
Abstract. In recent years research works have shown that augmented reality tools can offer effective support for the dissemination of architectural heritage, when integrated into the information data extracted with surveying and representation tools and further data from other sources, e.g., history.The development and permanent updating of software platforms dedicated to augmented reality, i.e., Apple's ARKit and Google's ARCore, as well as the introduction of new features, offer today affordable support for the development of AR solutions.Some operational difficulties are due to the rapid and constant evolution of the technologies; the available solutions can be compared to prototypes and…
A nested virtualization tool for information technology practical education
2016
Background A common problem of some information technology courses is the difficulty of providing practical exercises. Although different approaches have been followed to solve this problem, it is still an open issue, specially in security and computer network courses. Results This paper proposes NETinVM, a tool based on nested virtualization that includes a fully functional lab, comprising several computers and networks, in a single virtual machine. It also analyzes and evaluates how it has been used in different teaching environments. Conclusions The results show that this tool makes it possible to perform demos, labs and practical exercises, greatly appreciated by the students, that woul…
Molecular dynamics, dynamic site mapping, and highthroughput virtual screening on leptin and the Ob receptor as anti-obesity target.
2014
Body weight control is a mechanism finely regulated by several hormonal, metabolic, and nervous pathways. The leptin receptor (Ob-R) is crucial for energy homeostasis and regulation of food uptake. Leptin is a 16 kDa hormone that is mainly secreted by fat cells into the bloodstream, and under normal circumstances, circulating levels are proportionate to the fat body mass. Sensing of elevated leptin levels by the hypothalamic neurocircutry activates a negative feedback loop resulting in reduced food intake and increased energy expenditure. Decreased concentrations lead to opposite effects. Therefore rational design of leptin agonists constitute an appealing challenge in the battle against ob…