Articles, congressos, llibres: Recent submissions
Now showing items 1481-1500 of 1956
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Effectiveness of a primary care-based intervention to reduce sitting time in overweight and obese patients (SEDESTACTIV): a randomized controlled trial; rationale and study design
(2014)Background: There is growing evidence suggesting that prolonged sitting has negative effects on people's weight, chronic diseases and mortality. Interventions to reduce sedentary time can be an effective ... -
Campus Móvil: Designing a Mobile Web 2.0 Startup for Higher Education Uses
(2010)In the intersection between the mobile Internet, social software and educational environments, Campus Móvil is a prototype of an online application for mobile devices created for a Spanish university ... -
Stochastic heuristic dynamic assignment based on AIMSUN microscopic traffic simulator
(2006)The deployment of intelligent transportation systems must be assisted by suitable tools to conduct the feasibility studies required to test the designs and evaluate the expected impacts. Microscopic ... -
Online brands: Branding, possible worlds, and interactive grammars
(2008)This paper proposes to reflect from a semiotic perspective on the transformation that brands have undergone since the rise of the Internet. After a brief theoretical introduction to digital communication ... -
Mapping conversations about new media: the theoretical field of digital communication
(2009)This article reflects on the current state of digital communication studies in the context of mass communication research. The objectives of the article are: 1) to characterize the enunciators and ... -
Interval censoring: identifiability and the constant-sum property
(2007)The constant-sum property given in Oller et al. (2004) for censoring models justifies the use of a simplified likelihood to obtain the nonparametric maximum likelihood estimator of the lifetime ... -
El Diseño de Diálogos de la Comunicación En Línea. Hacia una nueva gestión del Conocimiento Científico en la era del Software Social
(2007)Este artículo es un recorrido a través del proceso de diseño de Diálogos de la Comunicación versión en línea, un procedimiento que ha incluido diferentes fases: desde la fijación de objetivos hasta ... -
Transmedia Storytelling: Implicit Consumers, Narrative Worlds, and Branding in Contemporary Media Production
(2009)Many concepts have been developed to describe the convergence of media, languages, and formats in contemporary media systems. This article is a theoretical reflection on “transmedia storytelling” from ... -
Nonlinear prediction based on score function
(2002)The linear prediction coding of speech is based in the assumption that the generation model is autoregresive. In this paper we propose a structure to cope with the nonlinear effects presents in the ... -
Interval censoring: model characterizations for the validity of the simplified likelihood
(2004)En analyse de durées de vie, le problème de la censure par intervalle a généralement été traité par des méthodes vraisemblantistes. Comme la vraisemblance est complexe, on suppose souvent que les ... -
Distribución espacial de la población inmigrante en los municipios catalanes: igualdad, exposición, concentración y centralidad
(2006)Dado el importante crecimiento de la población inmigrante en España, es interesante estudiar su distribución sobre el territorio urbano. Desde la estadística se dispone de diferentes indicadores con ... -
Tutorial on methods for interval-censored data and their implementation in R
(2009)Interval censoring is encountered in many practical situations when the event of interest cannot be observed and it is only known to have occurred within a time window. The theory for the analysis of ... -
A copula-based method for synthetic microarray data generation
(2012)In this work, we propose a copula-based method to generate synthetic gene expression data that account for marginal and joint probability distributions features captured from real data. Our method ... -
ICA Cleaning procedure for EEG signals analysis: application to Alzheimer's disease detection
(2010)To develop systems in order to detect Alzheimer’s disease we want to use EEG signals. Available database is raw, so the first step must be to clean signals properly. We propose a new way of ICA cleaning ... -
Improving the Quality of EEG Data in Patients With Alzheimers Disease Using ICA
(2008)Does Independent Component Analysis (ICA) denature EEG signals? We applied ICA to two groups of subjects (mild Alzheimer patients and control subjects). The aim of this study was to examine whether ... -
Reducción del vector de características de reconocimiento facial
(2008)In this present work, we are proposing a characteristics reduction system for a facial biometric identification system, using transformed domains such as discrete cosine transformed (DCT) and discrete ... -
Improved Sparse Bump Modeling for Electrophysiological Data
(2008)Bump modeling is a method used to extract oscillatory bursts in electrophysiological signals, who are most likely to be representative of local synchronies. In this paper we present an improved sparse ... -
Beyond the Votes: A European Perspective on the Use of Public Relations to Legitimize Authority in Obama’s Campaign
(2011)In political campaigns in Western society, there are many examples of public relations being behind opinion leaders in getting grassroots committed to a candidate; Obama’s campaign was one example. ... -
Observatorio Barça 2010. La Campaña a la Presodencia del FC Barcelona en prensa deportiva y las redes sociales
(2011)El artículo tiene como objetivo analizar la cobertura que los principales periódicos deportivos catalanes (Sport, Mundo Deportivo, El 9 Esportiu y Gol) hicieron de la campaña a la presidencia del ...