Search results for "Virtual"
showing 10 items of 1485 documents
Virtual Work in the Supply Chain in E-Economy
2019
The problem that is taken under consideration in the following article concerns the implementation, use and effectiveness of virtual work in the supply chain in e-economy. Any solution concerning employee mobility or the use of mobile technology are due to growing market competition and constant search for new solutions that may enable the companies in the supply chain to be more efficient than their competition. In the supply chain the e-business creates for the companies new challenges they have to face. One of the possibilities to improve your business in the supply chain is to use virtual work. The new challenge facing the e-economy needs to be met. The aim of the article is to refer th…
Od folkloru do e-folkloru, czyli przemodelowanie przez Internet przedmiotu współczesnych badań folklorystycznych
2022
The emergence of the Internet, a new electronic means of communication, initiated the process of a qualitative change in contemporary culture. This has led, among other things, to a necessary redefinition ofthe subject of folklore research and, consequently, to highlighting its anthropological dimension. That, in turn, requires first and foremost a change in the concept of orality which in itself may no longer be reduced to direct (oral) provision of content, as the virtual language, enriched with a Computer interface, creates new possibilities for using words, along with their combination with image and music (visual folklore). On the one hand, on the Internet we may observe new aspects of…
Transition from glass to digital slide microscopy in the teaching of oral pathology in a Brazilian dental school
2014
Objectives: Several medical and dental schools have described their experience in the transition from conventional to digital microscopy in the teaching of general pathology and histology disciplines; however, this transitional process has scarcely been reported in the teaching of oral pathology. Therefore, the objective of the current study is to report the transition from conventional glass slide to virtual microscopy in oral pathology teaching, a unique experience in Latin America. Study Design: An Aperio ScanScope® scanner was used to digitalize histological slides used in practical lectures of oral pathology. The challenges and benefits observed by the group of Professors from the Pira…
Positive mood induction procedures for virtual environments designed for elderly people
2012
Positive emotions have a significant influence on mental and physical health. Their role in the elderly’s wellbeing has been established in numerous studies. It is therefore worthwhile to explore ways in which elderly people can increase the number of positive experiences in their daily lives. This paper describes two Virtual Environments (VEs) that were used as mood induction procedures (MIPs) for this population. In addition, the VEs’ efficacy at increasing joy and relaxation in elderly users is analyzed. The VEs contain exercises for generating positive-autobiographic memories, mindfulness and slow breathing rhythms. The total sample comprised 18 participants over 55 years old who used t…
Design of virtual environments for the treatment of agoraphobia: Inclusion of culturally relevant elements for the population of the Dominican Republ…
2020
Abstract Virtual Reality is a powerful tool for the treatment of agoraphobia. However, how effective is the use of these scenarios when they do not resemble the sociocultural context? Literature suggests that the inclusion of culturally relevant elements increases the ecological validity and transferability of learning since it reduces the gap between the virtual and real context. Unfortunately, in Latin America, the development of virtual environments is incipient, and the use of generic virtual environments is commonplace. The objective of this study was to develop virtual environments that include elements that are culturally relevant to the population of the Dominican Republic. Three hu…
MOOCEP: Un método para construir cursos masivos para Adultos Mayores: Usando una creación MOOCEP
2018
Hoy en día, la población de adultos mayores se ha incrementado significativamente en relación al total de la población mundial, así también este segmento en los últimos años ha mostrado una mayor adherencia e interés a los avances tecnológicos, entre ellos el Internet y sus servicios con la finalidad de desarrollar diferentes actividades tales como entretenimiento, información de actualidad, aprendizaje de diferentes tópicos, entre otros. Sin embargo, las aplicaciones y sitios web no tienen en cuenta los requisitos específicos de las personas de la tercera edad. De ahí, es necesario contar con metodologías, procesos y herramientas, las mismas que tengan en cuenta formas apropiadas de intera…
Virtual Reality in Education : Focus on the Role of Emotions and Physiological Reactivity
2019
Cognitive and emotional dimensions are often linked to each other in learning experiences. Moreover, emotions and engagement can lead to better outcomes at the cognitive level. Previous research has indicated that virtual reality (VR) provides a feeling of presence and immersion, which can trigger emotionally engaging learning situations. In this study, we explore the opportunities and challenges related to the use of VR in an educational context. The focus of this article is threefold: First, we explore interdisciplinary research literature related to the use of VR for educational purposes. Second, we introduce our VR pilot study in teacher education, applying three different kinds of VR a…
Valutazione di efficienze fotoelettriche per uno scintillatore LaBr3(Ce) tramite un approccio Virtual Point Detector
2019
L’impiego di uno scintillatore a Bromuro di Lantanio, LaBr3(Ce), come strumento di misura della attività (o concentrazione) in un dato campione, richiede la valutazione delle efficienze fotoelettriche o la conoscenza di una corrispondente curva di calibrazione. Oltre ai consueti metodi basati sull’impiego di sorgenti calibrate aventi la stessa forma e composizione del campione in esame, o metodi Monte Carlo, uno strumento rapido di valutazione delle efficienze può essere rappresentato dall'applicazione della semplificazione “Virtual Point Detector” (VPD), ovvero con il rilevatore assunto equivalente a un punto virtuale all’interno del cristallo dove si può considerare avvengano tutte le int…
Training machine learning models with synthetic data improves the prediction of ventricular origin in outflow tract ventricular arrhythmias
2022
In order to determine the site of origin (SOO) in outflow tract ventricular arrhythmias (OTVAs) before an ablation procedure, several algorithms based on manual identification of electrocardiogram (ECG) features, have been developed. However, the reported accuracy decreases when tested with different datasets. Machine learning algorithms can automatize the process and improve generalization, but their performance is hampered by the lack of large enough OTVA databases. We propose the use of detailed electrophysiological simulations of OTVAs to train a machine learning classification model to predict the ventricular origin of the SOO of ectopic beats. We generated a synthetic database of 12-l…
Evidence Against a Correlation Between Ease of Use and Actual Use of a Device in a Walk-in Virtual Environment
2013
Technology acceptance and its use are assumed to be based on the perceived usefulness and ease of use of the technology. We studied one aspect of that by focusing on a possible correlation between the actual use of a device and its perceived ease of use. For studying technology that is new to users, we investigated the use of a locomotion control device in a walk-in virtual environment. We organized a user test in which participants browsed virtual shopping items by walking or by controlling locomotion with a device. Data were gathered in two ways: First, we observed their actual device use, and second, we asked users to evaluate the ease of use of the device. The analysis illustrates that …