Las empresas en la prensa mediante los "pseudoeventos"

Esta tesis pone en evidencia la presencia de la actividad de relaciones públicas a las noticias de la prensa que se lee en Cataluña a través de la identificación de los eventos creados por las empresas para ganar cobertura en los medios de comunicación. Estos eventos, que forman parte de las prácticas de publicity, se describen por varios autores como pseudoesdeveniments y en la investigación se identifican como generadores del 21.8% de las noticias donde una empresa es el sujeto principal.This thesis shows the presence of public relations activity in the press news in Catalonia through the identification of events created by companies to gain media coverage. These events, which are part of the publicity practices, are described by several authors as pseudoevents, and research identified them as generators of 21.8% of the news in which a company is the main subject. This thesis has won the Prat Gaballí award from the Col·legi de Publicitaris i Relacions Públiques de Catalunya. More info: http://www.colpublirp.com

Estudi sobre usos, actituds i identitats lingüístiques de l’estudiantat de les universitats catalanes

L'article aborda els usos i les actituds lingüístiques a la universitat i, també, aspectes identitatis relacionats. Es presenten, en primer lloc, els Coneixements lingüístics de l’alumnat universitari; a continuació, les expectatives lingüístiques dels estudiants en què es constata el desconeixement de l'acció de política lingüística que es porta a terme en aquest àmbit. L'estudi també desgrana els usos i les actituds dins i fora de l'aula, amb preguntes com la llengua en què prefereixen que s'expressi el professor, la conveniència d'explicitar en quina llengua s'impartiran les classes, els coneixements de llengües com l'anglès o el paper del multilingüisme. Un breu apartat de conclusions és la coda del treball

Biotechnology and Economic Development: The Economic Benefits of Maize Streak Virus Tolerant Maize in Kenya

For countries that could not benefit from the Green Revolution due to heterogeneous and unfavorable biophysical environments, agricultural biotechnology potentially provides a means of improving the quality and quantity of agricultural production. This paper analyses some of the major issues relating to the utilization of biotechnology in Kenya. A partial equilibrium trade model is applied to Kenya's corn market to study the potential of genetically modified maize that is tolerant to the Maize Streak Virus. The model accounts for home production and consumption; the positive results of the welfare estimation are disaggregated between consumers, large and small Kenyan corn farms.Community/Rural/Urban Development, Research and Development/Tech Change/Emerging Technologies,

Vers l'utilisation de Bluetooth pour la commande à distance de robots mobiles

International audienceThis paper proposes a solution to control some remote mobile manipulators using Bluetooth technology. Some Bluetooth specifications and performances are presented as well as experimental results. A remote mobile manipulator control case is theoretically studied including the stability analysis with time delay. Some simulations results prove the robustness of this control law versus time delay

A Data Fusion Technique to Detect Wireless Network Virtual Jamming Attacks

The file attached to this record is the author's final peer reviewed version. The Publisher's final version can be found by following the DOI link.Wireless communications are potentially exposed to jamming due to the openness of the medium and, in particular, to virtual jamming, which allows more energy-efficient attacks. In this paper we tackle the problem of virtual jamming attacks on IEEE 802.11 networks and present a data fusion solution for the detection of a type of virtual jamming attack (namely, NAV attacks), based on the real-time monitoring of a set of metrics. The detection performance is evaluated in a number of real scenarios

Broadband distortion modeling in Lyman-α\alpha forest BAO fitting

In recent years, the Lyman-$\alpha$ absorption observed in the spectra of high-redshift quasars has been used as a tracer of large-scale structure by means of the three-dimensional Lyman-$\alpha$ forest auto-correlation function at redshift $z\simeq 2.3$, but the need to fit the quasar continuum in every absorption spectrum introduces a broadband distortion that is difficult to correct and causes a systematic error for measuring any broadband properties. We describe a $k$-space model for this broadband distortion based on a multiplicative correction to the power spectrum of the transmitted flux fraction that suppresses power on scales corresponding to the typical length of a Lyman-$\alpha$ forest spectrum. Implementing the distortion model in fits for the baryon acoustic oscillation (BAO) peak position in the Lyman-$\alpha$ forest auto-correlation, we find that the fitting method recovers the input values of the linear bias parameter $b_{F}$ and the redshift-space distortion parameter $\beta_{F}$ for mock data sets with a systematic error of less than 0.5\%. Applied to the auto-correlation measured for BOSS Data Release 11, our method improves on the previous treatment of broadband distortions in BAO fitting by providing a better fit to the data using fewer parameters and reducing the statistical errors on $\beta_{F}$ and the combination $b_{F}(1+\beta_{F})$ by more than a factor of seven. The measured values at redshift $z=2.3$ are $\beta_{F}=1.39^{+0.11\ +0.24\ +0.38}_{-0.10\ -0.19\ -0.28}$and$b_{F}(1+\beta_{F})=-0.374^{+0.007\ +0.013\ +0.020}_{-0.007\ -0.014\ -0.022}$(1$\sigma$, 2$\sigma$and 3$\sigma$ statistical errors). Our fitting software and the input files needed to reproduce our main results are publicly available.Comment: 28 pages, 15 figures, matches the published versio