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Institution

Open University of Catalonia

EducationBarcelona, Spain
About: Open University of Catalonia is a education organization based out in Barcelona, Spain. It is known for research contribution in the topics: Collaborative learning & Educational technology. The organization has 1943 authors who have published 4646 publications receiving 64200 citations. The organization is also known as: Universitat Oberta de Catalunya & UOC.


Papers
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Journal ArticleDOI
TL;DR: In this paper, the authors analyse perceptions on the level of proficiency that online teachers have regarding these peripheral roles (social, evaluator, manager, technologist, advisor/counsellor, personal, and researcher), and their professional development needs required to improve their online teaching competencies.
Abstract: Teaching in virtual environments demands mastery of several teaching competencies. Although the most accepted ones are pedagogical, in order to successfully teach online it becomes necessary to acquire and develop some other competencies, sometimes referred to as peripheral roles (Denis et al., 2004). The aim of this study is to analyse perceptions on the level of proficiency that online teachers have regarding these peripheral roles (social, evaluator, manager, technologist, advisor/counsellor, personal, and researcher), and their professional development needs required to improve their online teaching competencies. A questionnaire was specifically created and validated by experts, and data was gathered from 166 university teachers. The findings show that teachers highlight the importance of the peripheral roles for quality teaching, and thus, professional development programmes should be based on a balance between central and peripheral roles to better train online teachers and increase the quality of their teaching.

40 citations

Journal ArticleDOI
TL;DR: The authors' proposal detects RFID signals from different objects and classifies them as interacted or static objects through an automatic training system, achieving a detection accuracy over 86 percent.
Abstract: Elderly people with physical or cognitive disabilities such as visual impairment lack independence in their everyday activities, such as shopping in retail stores. Ambient assisted living (AAL) technologies can help. The authors of this article propose the use of RFID technologies to enable an AAL system in a retail store. This article presents an RFID-enabled intelligent system that can detect user-object interactions via a supervised machine learning algorithm. The authors' proposal detects RFID signals from different objects and classifies them as interacted or static objects through an automatic training system, achieving a detection accuracy over 86 percent.

40 citations

Journal ArticleDOI
01 Feb 2001
TL;DR: In this paper, a partir de la experiencia en la UOC, analiza los cambios vinculados a la docencia virtual that se estan sucediendo and que afectan a los propios docentes, a los estudiantes and a cultura organizativa de las instituciones.
Abstract: La educacion en la virtualidad no se situa necesariamente en ninguna orientacion educativa concreta. La diferencia mas importante entre la educacion en la presencialidad y en la virtualidad reside en el cambio de medio y en el potencial educativo que se deriva de la optimizacion del uso de cada medio. El articulo establece que los elementos diferenciales de los procesos educativos en ambientes virtuales deben ser de dos tipos: metodologicos y organizativos. A partir de la experiencia en la UOC, analiza los cambios vinculados a la docencia virtual que se estan sucediendo y que afectan a los propios docentes, a los estudiantes y a la cultura organizativa de las instituciones. Plantea si estamos ante la emergencia de un nuevo paradigma, basado en el aprendizaje en red y en el uso de Internet en la educacion y concluye contrastando la formacion virtual con el reto de la globalidad que se plantea la sociedad actual.

40 citations

Proceedings ArticleDOI
09 Jun 2019
TL;DR: An 802.15.4 compatible transceiver that operates without any off-chip frequency reference, with integrated Cortex-M0, that can also transmit BLE beacons with only three external connections.
Abstract: We present an 802.15.4 compatible transceiver that operates without any off-chip frequency reference. With integrated Cortex-M0, the chip can also transmit BLE beacons with only three external connections (power, ground, and antenna). The RF transmitter operates with >10% system efficiency at -10 dBm output power from a regulated supply. The entire chip, including the microprocessor, can operate below 1 mW peak power when transmitting. The analog receiver power consumption is 1.03 mW from a 1.5V battery.

40 citations

Journal ArticleDOI
TL;DR: In this article, a multilayer network that naturally accounts for mutualism and competition is built up, and a dynamical population model and numerical simulations are used to show that there is an intricate relation between competition and mutualism.
Abstract: In the past years, there have been many advances –but also many debates– around mutualistic communities, whose structural features appear to facilitate mutually beneficial interactions and increase biodiversity, under some given population dynamics. However, most approaches neglect the structure of inter-species competition by adopting a mean-field perspective that does not deal with competitive interactions properly. Here, we build up a multilayer network that naturally accounts for mutualism and competition and show, through a dynamical population model and numerical simulations, that there is an intricate relation between competition and mutualism. Specifically, the multilayer structure is coupled to a dynamical model in which the intra-guild competitive terms are weighted by the abundance of shared mutualistic relations. We find that mutualism does not have the same consequences on the evolution of specialist and generalist species, and that there is a non-trivial profile of biodiversity in the parameter space of competition and mutualism. Our findings emphasize how the simultaneous consideration of positive and negative interactions derived from the real networks is key to understand the delicate trade-off between topology and biodiversity in ecosystems and call for the need to incorporate more realistic interaction patterns when modeling the structural and dynamical stability of mutualistic systems.

39 citations


Authors

Showing all 2008 results

NameH-indexPapersCitations
Andrea Saltelli6518431540
Jose A. Rodriguez6359717218
Cristina Botella5540413075
Fatos Xhafa5269210379
Jaime Kulisevsky4821015066
William H. Dutton432777048
Angel A. Juan412845040
Aditya Khosla396150417
Jordi Cabot381065022
Jordi Cortadella382265736
Antoni Valero-Cabré37996091
Berta Pascual-Sedano34874377
Josep Lladós332714243
Carlo Gelmetti331593912
Juan V. Luciano331062931
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
202328
202286
2021503
2020505
2019401
2018343