Search results for "exploratory"

Intra-urban spatial distributions of population and employment : the case of the agglomeration of Dijon, 1999

2003

The aim of this paper is to analyze the intra-urban spatial distributions of population and employment in the agglomeration of Dijon (regional capital of Burgundy, France). We study whether this agglomeration has followed the general tendency of job decentralization observed in most urban areas or whether it is still characterized by a monocentric pattern. In that purpose, we use a sample of 136 observations at the communal and at the IRIS (infra-urban statistical area) levels with 1999 census data and the employment database SIRENE (INSEE). First; we study the spatial pattern of total employment and employment density using exploratory spatial data analysis. Apart from the CBD, few IRIS ar…

An exploratory study of COVID-19 misinformation on Twitter.

2020

During the COVID-19 pandemic, social media has become a home ground for misinformation. To tackle this infodemic, scientific oversight, as well as a better understanding by practitioners in crisis management, is needed. We have conducted an exploratory study into the propagation, authors and content of misinformation on Twitter around the topic of COVID-19 in order to gain early insights. We have collected all tweets mentioned in the verdicts of fact-checked claims related to COVID-19 by over 92 professional fact-checking organisations between January and mid-July 2020 and share this corpus with the community. This resulted in 1 500 tweets relating to 1 274 false and 276 partially false cla…

Bayesian Checking of the Second Levels of Hierarchical Models

2007

Hierarchical models are increasingly used in many applications. Along with this increased use comes a desire to investigate whether the model is compatible with the observed data. Bayesian methods are well suited to eliminate the many (nuisance) parameters in these complicated models; in this paper we investigate Bayesian methods for model checking. Since we contemplate model checking as a preliminary, exploratory analysis, we concentrate on objective Bayesian methods in which careful specification of an informative prior distribution is avoided. Numerous examples are given and different proposals are investigated and critically compared.

Emotional politics on Facebook. An exploratory study of Podemos’ discourse during the European election campaign 2014

2015

The results of the European elections 2014 in Spain were characterized by the outstanding rise of a new party, Podemos, which obtained five seats in the European Parliament, despite being founded few months before the elections. The present study analyzes both the content and the presence of emotions in Podemos’ discourse on Facebook during the European electoral campaign. In particular, the affective content of both the party’s discourse and the comments of its followers will be analyzed through a pragmatic linguistic approach applied to a corpus of 163 posts and 215 followers’ comments. Results show an insistence on positive emotions in the party’s discourse and a prevalence of negative e…

Evidencias de validez interna de un instrumento para evaluar la colegialidad docente

2019

Este estudio es parte de una investigación más amplia que busca diseñar un modelo de evaluación de los sistemas educativos basado en la mejora de la cohesión social. Se trata de un estudio de validación métrica de un instrumento de evaluación de la colegialidad docente. El instrumento se aplicó a partir de las conclusiones del estudio de validación por comités de expertos. La muestra estuvo formada por 147 profesores voluntarios de primaria y secundaria de España. La metodología utilizada se basó en la recogida de evidencias métricas de validez interna del instrumento; se estudió la dimensionalidad mediante el análisis factorial exploratorio y la capacidad de discriminación mediante el anál…

Crisis perception in financial media discourse:a concrete application using the Minskian/mainstream opposition

2014

Purpose– The purpose of this article is to highlight the need for renewed collaborative efforts between linguists and economists to develop a multidisciplinary approach to discourse studies to single out, in the case at hand, how financial media discourse might reflect either a prevailing mainstream or a Minskian conceptual apparatus in financial crisis related papers.Design/methodology/approach– The paper conducts exploratory research by focusing on semantic analysis, so as to indicate how the latter might possibly indicate a shift in the prevailing framework in contemporary financial media discourse. After a clear exposition of a theoretical dichotomy between the Minskian and mainstream a…

Is R&D Enough to Take Advantage From External Knowledge?: Focusing on Coordination Mechanisms

2014

The purpose of this paper is to analyze the role of research and development (R&D) and coordination mechanisms (such as decentralization in decision-making and formalization of organizational processes) in the transformation of external knowledge into innovation results. We use survey data for performing standard ordinary least squares regressions in a representative sample of firms from the Spanish Ceramic Tile Industry. The results suggest that R&D is an important moderator influencing the relationship between acquiring external knowledge and innovation outcomes. Second, formalization tends to have a detrimental effect in the transformation of external knowledge into innovation outputs. T…

VALIDACIÓN EN CONTEXTO ESPAÑOL DE LA SUBPRUEBA DE INICIO DE LA ESCRITURA DE LA SHELL

2016

Abstract:VALIDATION IN THE SPANISH CONTEXT OF SHELL’S SUBTEST OF EMERGENT WRITING SKILLSBecause of a lack of research examining early learning skills involved in writing and, above all, the lack of tests evaluating it, the main objective of this work is the validation in the spanish context of SHELL’s subscales related to emergent writing skills. Participants were 119 students from the provinces of Castellón and Valencia, who have been evaluated when 4 years old. The administered instrument was a spanish version of the subtests related to early writing of SHELL scale in which the child has to choose between some letters, the one he needs to write some words (his/her name, “sea”, “sun”, “whi…

Effects of GABA-transporter (GAT) inhibitors on rat behaviour in open-field and elevated plus-maze.

1999

The behavioural consequences of inhibition of gamma-aminobutyric acid (GABA) uptake were studied. Two GABA uptake inhibitors, tiagabine and SKF 89976-A, were administered to rats, and behaviour was analysed 30 min later in a standard open field, an enriched open field, and an elevated plus-maze. Eight groups of animals received either saline (0.9%), tiagabine, or SKF 89976-A. At a dose of 18.5 mg/kg, tiagabine, an established antiseizure drug, impaired motor coordination, enhanced exploratory activity and reduced anxiety related behaviour. SKF 89976-A exhibited minimal effects over the dose range tested. These results indicate that inhibition of GABA uptake might be a pharmacological strate…

1999

Since the 1980s there have been a number of studies that investigate the use of computers in homes. Many of these focused on the adults or adolescents in the family. Few studies have focused on children, particularly those between the ages of five and twelve. If children of these ages were included in a study they were usually situated within a study of the family and its dynamics, and often their experiences were viewed through the eyes of the adults in the family. The study described in this paper is unique in that the children‘s perceptions, beliefs and practices were the major focus and the children themselves were the informants. The study investigated children‘s computer experiences w…