[KidsETransplant: a serious game for liver transplanted children]. / KidsETransplant : un serious game pour les enfants malades ou greffés du foie.

Serious games are increasingly used in pediatric care, especially to educate young patients with chronic diseases, to improve their understanding of the disease and develop independence in disease management, as it can ultimately improve clinical results. This is also true for liver transplanted children and adolescents, who are not only challenged by their therapeutic burden, but who need to face transition to adult care, often without remembering their transplantation, which was performed, most of the time, very early in their life. KidsETransplant aims to improve long term outcomes of liver transplanted patients, using the principle of a serious game in 3D.

Modelling heavy metal fluxes from traffic into the environment.

A new method is presented which allows emissions of traffic into the environment to be described as a function of road distance. The method distinguishes different types of emissions (runoff, spray and drift), which are determined by measurements and mass balances of a specified road section. The measurement of two-dimensional pollutant concentrations in the road shoulder is an important part of the method. In a case study performed at Burgdorf, Switzerland, the method was applied to the determination of the spatial distribution of heavy metal emissions. The results show that between 36 and 65% of the heavy metals Cd, Cr, Cu, Pb and Zn are present in runoff and spray and between 35 and 64% are dispersed diffusely in the environment (defined as drift). The runoff infiltrates into the vegetated road shoulder up to a distance of approx. 1 m from the road. The distribution of spray shows a maximum at 1 m and decreases steadily up to a distance of 5 m. This information can serve as a basis for the quantitative evaluation of road-runoff treatment scenarios. Although the results of the Burgdorf study are case-specific, several general guidelines for the reduction of traffic-related emissions can be derived from it.

Modeling of copper sorption onto GFH and design of full-scale GFH adsorbers.

During rain events, copper wash-off occurring from copper roofs results in environmental hazards. In this study, columns filled with granulated ferric hydroxide (GFH) were used to treat copper-containing roof runoff. It was shown that copper could be removed to a high extent. A model was developed to describe this removal process. The model was based on the Two Region Model (TRM), extended with an additional diffusion zone. The extended model was able to describe the copper removal in long-term experiments (up to 125 days) with variable flow rates reflecting realistic runoff events. The four parameters of the model were estimated based on data gained with specific column experiments according to maximum sensitivity for each parameter. After model validation, the parameter set was used for the design of full-scale adsorbers. These full-scale adsorbers show high removal rates during extended periods of time.