Search results for "virtu"
showing 10 items of 1987 documents
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 …
Enseñar, evaluar, aprender e investigar en el aula universitaria de la mano de la materia Lengua para Maestros
2014
Son muchas las cuestiones que podemos abordar al integrar la acción de las tecnologías en contextos de enseñanza presencial y el desarrollo del área lingüística: desde el comportamiento lingüístico ajustado a las interacciones oral y escrita, la creación de un clima propicio para despertar e incentivar el diálogo y la creatividad, la interpretación y valoración de textos, la capacitación para la investigación lingüística en la lengua como sistema y en sus relaciones interlingüísticas, etc. Sin embargo, el propósito de esta aportación es contribuir al desarrollo e investigación de la evaluación tomando como piedra angular la Evaluación Orientada al Aprendizaje (EOA) y el uso de plataformas v…
Cuestionario de análisis de necesidades: Entornos Virtuales de Educación
2022
Cuestionario de análisis de necesidades y preferencias de aprendizaje para el estudiantado de la asignatura 33715 Entornos Virtuales de Educación de 4º de Pedagogía de la Universitat de València. El cuestionario se ha creado con la actividad Feedback del Aula Virtual (Moodle 3.11). Se incluye una versión en PDF y el archivo en formato XML. El archivo XML se puede importar a una actividad Feedback del Aula Virtual y posteriormente se puede editar o utilizar. Este trabajo forma parte del Proyecto de Innovación Docente Multimedia learning objects in moodle: Sustainable Development Goals (Ref: UV-SFPIE_PID-1640789) financiado por el Vicerectorado de Ocupación y Programas Formativos de la Univer…
Qüestionari d'anàlisi de necessitats: Entorns Virtuals d'Educació
2022
Qüestionari d'anàlisi de necessitats i preferències d'aprenentatge per a l'estudiantat de l'assignatura 33715 Entorns Virtuals d'Educació de 4t de Pedagogia de la Universitat de València. El qüestionari s'ha creat amb l'activitat Feedback de l'Aula Virtual (Moodle 3.11). S'inclou una versió en PDF i l'arxiu en format XML. L'arxiu XML es pot importar a una activitat Feedback de l'Aula Virtual i posteriorment es pot editar o utilitzar. Aquest treball forma part del Projecte d'Innovació Docent Multimèdia learning objects in moodle: Sustainable Development Goals (Ref: UV-SFPIE_PID-1640789) finançat pel Vicerectorat d'Ocupació i Programes Formatius de la Universitat de València en el curs acadèm…
A Practical Perspective : The Effect of Ligand Conformers on the Negative Image-Based Screening
2019
Negative image-based (NIB) screening is a rigid molecular docking methodology that can also be employed in docking rescoring. During the NIB screening, a negative image is generated based on the target protein’s ligand-binding cavity by inverting its shape and electrostatics. The resulting NIB model is a drug-like entity or pseudo-ligand that is compared directly against ligand 3D conformers, as is done with a template compound in the ligand-based screening. This cavity-based rigid docking has been demonstrated to work with genuine drug targets in both benchmark testing and drug candidate/lead discovery. Firstly, the study explores in-depth the applicability of different ligand 3D conformer…
Fondements et approches de modélisation 3D des environnements urbains pour la géosimulation
2015
National audience; Dans le prolongement de la théorie de la géographie virtuelle proposée par Mi¬chael Batty (1997, 2008), les Environne¬ments Géographiques Virtuels (EGVs) sont proposés comme une nouvelle génération d’outils d’analyses géographiques, d’amé¬nagements et de prospective de façon plus approfondie (Lin et al., 2012). Le déve¬loppement des EGVs répond aux trois exigences scientifiques fondamentales des sciences de l’information géographique : vi-sualisation multidimensionnelle, simulation dynamique de phénomènes géographiques et la participation collaborative pluridisci¬plinaire (Goodchild, 2009). A ce titre, les Environnements Virtuels Urbains pour la Géosimulation (EVUG) sont …