Search results for "Media and communication"
showing 10 items of 746 documents
Energy Harvesting-Aware Backoff Algorithms for Distributed Device-to-Device Communication
2016
Due to limited energy capacity in mobile devices, energy harvesting is regarded as a promising technology for lifetime extension in device-to-device (D2D) communication. However, medium access control (MAC) protocols designed for D2D communication intrinsically do not consider the existence of harvested energy. In this paper we study four backoff (BO) algorithms, among which one algorithm is proposed to enhance the BO selection based on energy harvesting rate and residual energy of devices. Simulations are performed in order to assess how the proposed algorithm can extend the lifetime of a D2D communication network as well as to provide fair channel access opportunities among devices.
Magister : revista de formación del profesorado e investigación educativa
2016
La competencia colaborativa es una herramienta muy útil para el alumnado universitario. La diversidad de ámbitos profesionales que existen hoy en día demanda unos trabajadores competentes que se adapten a una realidad laboral compleja y cambiante. En este sentido, las relaciones interpersonales cobran gran importancia al requerir la colaboración entre profesionales para conseguir un objetivo final. El presente artículo describe una propuesta de trabajo colaborativo que se llevó a cabo con el alumnado universitario del cuarto curso de Magisterio de la Universitat de València que cursaban el itinerario de especialización en Educación Musical. Collaborative competition is a very useful tool fo…
A unified radio control architecture for prototyping adaptive wireless protocols
2016
Experimental optimization of wireless protocols and validation of novel solutions is often problematic, due to limited configuration space present in commercial wireless interfaces as well as complexity of monolithic driver implementation on SDR-based experimentation platforms. To overcome these limitations a novel software architecture is proposed, called WiSHFUL, devised to allow: i) maximal exploitation of radio functionalities available in current radio chips, and ii) clean separation between the logic for optimizing the radio protocols (i.e. radio control) and the definition of these protocols.
The image of the candidates in the 2019 General Elections in Spain
2019
[Resumen] Las Elecciones Generales de 1977 en España obligaron a los partidos a explicar cuestiones elementales como “qué significaba votar”. En general, la imagen proyectada de los candidatos era una cuestión “menor”, dada la falta de cultura democrática del momento. Tras 42 años desde la transición, el contexto político y comunicativo ha dado un vuelco que exige de una aproximación más compleja. Los partidos políticos son conscientes de la importancia que tiene construir la imagen pública de sus candidatos. En este trabajo analizamos la imagen del principal cartel de campaña de los candidatos a presidente en las Elecciones Generales de abril de 2019 de Vox, PP, C’s, PSOE, UP y del candida…
EUROPEAN INSTITUTIONS ON SOCIAL MEDIA ‒ SHAPING THE NOTION OF EUROPEAN CITIZENSHIP
2017
Abstract This study supports topical discussion about the possibilities to use social media as a tool for citizen involvement in democratic processes. Contemporary academic views and statistics on the use of social media for communication between institutions and citizens are gathered in the study. The research focus is on social media publications, analysing the content of four European Parliament’s social media accounts in Latvian during the period from 1 July 2015 to 31 December 2015. The aim of the research is to identify the potential of the information published on European Parliament’s social media accounts in shaping the European citizenship notion among youth in Latvia. The conclus…
Debating Europe: Effects of the “Eurovision Debate” on EU Attitudes of Young German Voters and the Moderating Role Played by Political Involvement
2016
In the run-up to the elections to the European Parliament in 2014, EU citizens had the unprecedented opportunity to watch televised debates between the candidates running for president of the European Commission. The most important debate was the so-called "Eurovision debate", which was broadcasted in almost all EU member states. In this study we explore the responses of a sample of 110 young German voters, who watched this debate, to the candidates' messages and whether exposure to the debate caused a shift in the respondents' attitudes towards the EU. Combining data from a quasi-experiment, real-time response data, and data from a content analysis of the debate, we find that respondents' …
The relationship between online vigilance and affective well-being in everyday life: Combining smartphone logging with experience sampling
2021
Contains fulltext : 220301.pdf (Publisher’s version ) (Open Access) Through communication technology, users find themselves constantly connected to others to such an extent that they routinely develop a mindset of connectedness. This mindset has been defined as online vigilance. Although there is a large body of research on media use and well-being, the question of how online vigilance impacts well-being remains unanswered. In this preregistered study, we combine experience sampling and smartphone logging to address the relation of online vigilance and affective well-being in everyday life. Seventy-five Android users answered eight daily surveys over five days (N = 1615) whilst having their…
The risk of sexual-erotic online behavior in adolescents – Which personality factors predict sexting and grooming victimization?
2021
Abstract Information and communication technologies provide new opportunities for adolescents to establish and maintain intimate relationships, as well as exploring their sexuality. However, the young population is particularly vulnerable to becoming victims of violence or online abuse. The aim of this study was to understand to which extent the personality factors (extraversion, narcissism, lack of empathy and disinhibition) are related to sexting and online grooming victimization. The participants were 1763 adolescents between 12 and 16 years (M = 14.56, SD = 1.16, 50.99% girls). A cross-sectional design with self-report data was used, analyzed by structural equation modeling (SEM). The r…
Empirically-derived subgroups of Facebook users and their association with personality characteristics: a Latent Class Analysis
2018
Abstract In recent years, considerable research effort has been directed at the identification of relationships between psychological variables and Facebook usage indicators. However, the identification of homogeneous subgroups of individuals based on similar Facebook usage characteristics still presents a challenge. This study aims: (1) to empirically determine homogeneous groups of Facebook users based on variables regarding their personal experience on Facebook, by using a Latent Class Analysis; and (2) to examine the association between an individual's personality and interpersonal characteristics and the empirically-derived profiles of Facebook usage. Eight hundred and eleven Facebook …
Media polarisation over independence for Catalonia. A comparative study of coverage in RT
2019
espanolEl proces catalan ha experimentado una intensa polarizacion mediatica, tanto en medios tradicionales como en redes sociales, donde la corporacion rusa RT ha sido acusada de apoyar al independentismo. Desde una perspectiva cuantitativa, realizamos un analisis comparado de la cobertura en Facebook del proces catalan en las corporaciones RT, BBC y DW. A pesar de la proximidad de RT con el independentismo, los resultados no revelan diferencias significativas entre los medios. Asimismo, las reacciones de los usuarios a las publicaciones en Facebook sugieren su simpatia por el independentismo. EnglishThe process of the independence of Catalonia has experienced significant media polarisatio…