The invention relates to a hydrophobic polymer dispersion and a solvent-free process for the preparation thereof. A region where the pixel electrode and the metal electrode coextend also serves as an auxiliary capacitor. The sensors are advantageously disposed in a distributed manner, in a number of locations of the mobile client device. A modification to data of the persisted entity is detected within the one or more data sources, and the modified data is synchronized with the persisted entity in the repository of the second data management architecture.