Nico A. Kaptein

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With this paper we take a first step to understand the appropriation of social media by the police. For this purpose we analyzed the Twitter communication by the London Metropolitan Police (MET) and the Greater Manchester Police (GMP) during the riots in August 2011. The systematic comparison of tweets demonstrates that the two forces developed very(More)
OBJECTIVES The study was carried out to evaluate and develop simple tools to assess the driving fitness of brain-damaged patients. DESIGN Four neuropsychological tests (predictors) were validated against an open-road driving test (criterion standard), which is used by the Department of Adaptations of the Dutch Driving Licensing Agency for assessing(More)
Ant larvae may increase their fitness by trying to increase their food intake, since adult morphology and quality depend on nutritional conditions during juvenile development. As larvae are legless and dependent upon workers, some sort of begging signal can be expected. We studied larval begging behaviour in the ant Gnamptogenys striatula. Workers(More)
In this report we present the results from interviews and document analyses of current and planned information and communication technology (ICT) projects with police forces from 10 European countries and from interviews with technology vendors in the field of ICT for policing. Based on a cross-country, crossorganisational analysis, we present the following(More)
Five in-vehicle systems providing real-time traffic information were compared to an accepted standard (listening to radio congestion information while driving). The safety of the devices was evaluated during the execution of a number of driving manoeuvres in actual traffic, as well as in a car-following and braking task on a closed track. Driving(More)
Color-color interference refers to the finding that the naming of a target color is hampered by the simultaneous presentation of an incongruent distractor color somewhere else in the visual field. This interference effect has been attributed to an imperfect input selection (selection-for-processing). We test an alternative account in which it is assumed(More)
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