Search results for " communications"
showing 10 items of 2253 documents
On the evaluation of an optical OFDM radio over FSO system with IM-DD for high-speed indoor communications
2017
En aquest article es proposa un nou sistema híbrid de ràdio sobre fibra (RoF) i òptica d’espai lliure (FSO) basat en la transmissió de senyals òptics OFDM (OOFDM) per proporcionar enllaços de comunicació sense fils òptics d’alta capacitat. Es proposa un esquema de transmissió de baix cost basat en IM-DD per simplificar i reutilitzar la infraestructura existent per desplegar un enllaç FSO d’alt ample de banda. Aquest article mostra els resultats experimentals basats en la implementació de l'esquema proposat sota una transmissió digital OOFDM de 16 QAM a través de 10 km de fibra monomode (SMF) i enllaç FSO de 300 mm. Els resultats mostren la viabilitat de desplegar un sistema de comunicació d…
Proclivity of sexual harassment and blame attribution in journalism: experiential narratives of ghanaian female journalists
2021
Though the proclivity of sexual-related harassments in African journalism is high, the rates of reporting of these incidences and empirical studies are low. Using a gendered approach, the study presents and exploratory inquiry into the lived experiences and impressions of Ghanaian female journalists about incidences of sexual harassments. The study examines how female journalists experience both newsroom harassments and on-assignment sexual harassments including the role they play in quid pro quo exchanges, which are relevant aspects of sexual harassments in the profession. The study also looks at blame attribution strategies female journalists adopt in assigning blame for sexual harassment…
Valoración y confianza de los espectadores de los programas de salud de TVE
2019
Televisión Española (TVE) has made possible the dissemination of medical topics in the 2016 season through four specialized health programs: Saber vivir, Centro médico, Esto es vida and El ojo clínico. In order to better understand their reception by spectators, this study analyzes, on the one hand, the data from the audiometry and, on the other hand, the results of a survey launched through social networks. The questionnaire, responded by 158 followers of the programs, measured the value of the programs and the spectators’ confidence in their informative and audiovisual treatment. This research corresponds to the second phase of a broader project in which the contents of television program…
The effect of writing modality on recollection in children and adolescents
2019
We set out to assess the extent to which writing modality affects recollection in children and adolescents. We examined 10- to 11-year-old children’s (N = 63) and 16-year-old adolescents’ (N = 43) handwriting, keyboarding with a laptop computer and keyboarding with a touchscreen tablet computer or mobile phone in a within-subjects experimental design. Participants were instructed to write down stories dictated to them in the three writing modalities. Recollection of the stories was assessed using free recall of details in the stories. The results indicate that the writing modality affects recollection, handwriting leading to better recollection. However, currently, digital writing tools are…
Adaptive range-based localization algorithm based on trilateration and reference node selection for outdoor wireless sensor networks
2022
Locating the nodes of outdoor wireless sensor networks (WSNs) using (tri)lateration with a low-cost ranging technique, such as the received signal strength indicator (RSSI), often results in inaccurate location estimates. This can mostly be explained by the combined effect of distance estimate errors and localization geometry, both of which are subject to the reference nodes used. To develop techniques for reducing localization error, the distance estimate errors and localization geometry must be analyzed and taken into account. To address these challenges, this paper aims to seek ways to improve the quality of range-based trilateration localization for WSN nodes in varying outdoor conditio…
Assessment itineraries and its relation with academic achievement
2017
[EN] In recent years the university educational reality shows signs of change. Among other innovations, it has meant the introduction of new ways of assessment, arousing the scientific interest it deserves. Concretely, the formative and shared assessment is developed in assessment routes that try to adapt to the needs of the students. However, the continuous, mixed and final assessment methods are related to different academic performance, which is worth considering. This article tries to deepen in the relation that these itineraries have with the obtained marks and analyses descriptively teacher assessment trends and students’ system assessment preferences of choice. The results show, on t…
Refugee testimonies enacted : voice and solidarity in media art installations
2018
This article examines how two media art installations in which celebrity actors enact refugee storytelling create awareness of the complexities of representation and solidarity with refugees. The celebrity actor produces familiarity, or “audibility,” for contents of the stories. Yet at the same time, the familiarity of the actor alerts the visitor to the politics of listening. The artworks therefore produce the potential for ethical listening, which requires interrogation into the privileges of the listener. The artworks produce a kind of sociality different from that of typical celebrity advocacy. Instead of being at the center of attention, the actors’ presence draws critical attention to…
Artificial intelligence centric scientific research on COVID-19 : an analysis based on scientometrics data
2023
AbstractWith the spread of the deadly coronavirus disease throughout the geographies of the globe, expertise from every field has been sought to fight the impact of the virus. The use of Artificial Intelligence (AI), especially, has been the center of attention due to its capability to produce trustworthy results in a reasonable time. As a result, AI centric based research on coronavirus (or COVID-19) has been receiving growing attention from different domains ranging from medicine, virology, and psychiatry etc. We present this comprehensive study that closely monitors the impact of the pandemic on global research activities related exclusively to AI. In this article, we produce highly info…
El efecto moderador de la edad en la relación entre el valor percibido, las TIC del minorista y la lealtad del cliente
2010
AbstractInformation and communication technology (ICT) may represent a source of benefits for retailers. However, there is a debate in the literature on how ICT influences customer-supplier relationships. In addition, the evidence on the effect of age on consumer attitudes towards retail technological solutions is not conclusive. This paper proposes and tests a model to analyze the influence of retail ICT on consumer loyalty towards the retailer, as well as to assess the moderating role of consumer age on this relationship. As a result, customer assessment of retail ICT, together with perceived value, exerts a positive influence on consumer commitment and satisfaction, being the latter an a…
The Moderating Effect of Store Format on the Relationships Between ICT, Innovation and Sustainability in Retailing
2021
Innovation and sustainability are postulated as key variables for the future of large commercial distribution. In addition, the development of Information and Communication Technologies (ICT) solutions, and especially those related to Artificial Intelligence (i.e., Just Walk Out, Intelligent Retail Lab) and digitization, are particularly relevant factors in the current pandemic scenario in which retail companies operate. These tools are essential to face the derived changes in commercial relations, especially between companies and consumers. For all these reasons, this work aims to examine the effect of ICT, as a driving factor for innovation and its direct and indirect impact on sustainabi…