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Information sources as explanatory variables for the Belgian health-related risk perception of the Fukushima nuclear accident University of Antwerp KU Leuven
The media play an important role in risk communication, providing information about accidents, both nearby and far away. Each media source has its own presentation style, which could influence how the audience perceives the presented risk. This study investigates the explanatory power of 12 information sources (traditional media, new media, social media, and interpersonal communication) for the perceived risk posed by radiation released from the ...
Bewegen in tijden van lockdown: Impact van de covid-19-pandemie op fysieke activiteit en sportgedrag bij volwassenen Vrije Universiteit Brussel
Overal ter wereld implemente(e)r(d)en landen lockdowns om de COVID-19 pandemie te bestrijden. Terwijl deze lockdowns de vrije bewegingsruimte van mensen sterk inperken wijzen experten er tegelijkertijd op dat mensen op een veilige manier fysiek actief moeten blijven om andere gezondheidsproblemen te voorkomen. Op basis van een online bevraging analyseerde dit onderzoek het beweeg- en sportgedrag van volwassen Belgen tijdens de eerste COVID-19 ...
Updating and Calibration of Multinomial Risk Prediction Models KU Leuven
Risk prediction models for diagnostic or prognostic outcomes are useful tools for clinical decision support. Most commonly, a dichotomous outcome (e.g. a benign or malignant tumor) is considered. Especially in diagnostic problems, however, a differential diagnosis often includes more levels than categorization of subjects as diseased versus non-diseased (e.g. a benign, borderline or invasive tumor). Methods for updating existing risk prediction ...
Including spatial interdependence in customer acquisition models: a cross-category comparison Ghent University
Optimizing the popularity of Twitter messages through user categories Ghent University
In this paper, we investigate how the category of a Twitter user can be used to better predict and optimize the popularity of tweets. The contributions of this paper are threefold. First, we compare the influence of content features on the popularity of tweets for different user categories. Second, we present a regression model to predict the popularity of tweets given the content features as input. To construct this model, we interpolate a ...
The determinants and income elasticities of direct and indirect sports expenditure categories KU Leuven
© 2017 European Association for Sport Management. Research question: The current study investigates the income elasticities and socio-economic determinants of direct and indirect sports expenditure categories by means of a log normal hurdle regression. Research methods: The data stem from a representative sample of 3005 Flemish families with school-aged children, gathered through a sports-specific survey. A log normal hurdle regression was used ...
Analysing continuous proportions in ecology and evolution University of Antwerp
Proportional data, in which response variables are expressed as percentages or fractions of a whole, are analysed in many subfields of ecology and evolution. The scale‐independence of proportions makes them appropriate to analyse many biological phenomena, but statistical analyses are not straightforward, since proportions can only take values from zero to one and their variance is usually not constant across the range of the predictor. ...
Mind the Generation Gap: Differences between Young and Old in Everyday Lexical Categories KU Leuven
Individual differences in word use, originating from differences in interaction between individuals and their environment, can act as a driver for language evolution. We presented four sets of 40 pictures of common household containers, such as bottles, to samples of monolingual Dutch- (Nâ400) and French-speaking (Nâ300) Belgian adults. Participants made a binary acceptability judgment of one category label in their native language for each ...
Higher proportion of agricultural land use around the residence is associated with higher urinary concentrations of AMPA, a glyphosate metabolite University of Antwerp KU Leuven Hasselt University
Introduction: Pesticides, including herbicides, are widely used for agricultural and sanitary reasons and concerns have been raised about their various health effects. Little research has been done into the extent to which agricultural land use in the residential surroundings contributes to (internal) exposure of pesticides. Objectives: We investigated the associations between the proportion of agricultural land use around the residence and the ...