Martijn de Waal is a senior researcher at the lectorate of Play and Civic Media and a member of the Citizen Data Lab at the Amsterdam University of Applied Sciences. Het is the author of The City as Interface. How Digital Media Are Changing the City (2014), and the project leader of The Hackable City …

This paper describes experiments with a game device that was used for early detection of delays in motor skill development in primary school children. Children play a game by bi-manual manipulation of the device which continuously collects ac- celerometer data and game state data. Features of the data …

Smart city-policy makers and technology vendors are increasingly stating they want to bring about citizen-centered smart cities. Yet, it often remains unclear what exactly that means, and how citizens are envisaged as actors in smart cities. This article wants to contribute to this discussion by exploring …

BACKGROUND: Intentional weight loss in obese older adults is a risk factor for accelerated muscle mass loss. We investigated whether a high protein diet and/or resistance exercise preserves fat free mass (FFM) during weight loss in overweight and obese older adults. METHODS: We included 100 overweight …

Cities are becoming increasingly complex, both in terms of their social and cultural context, and in the technological solutions that are necessary to make them function. In parallel, we are observing a growing attention toward the public dimension of design, addressing societal challenges and opportunities …