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Cloud-based platforms for handling Internet-ofThings data can reduce the energy consumption of various ICT modules (e.g., data centers, networking equipment, batteryequipped devices) by applying appropriate system configurations. However, this is currently prevented by the higher prioritization of other goals, the complexity or unawareness of the synergies between system configurations and energy consumption, and the technical difficulties for automating re-configuration. This paper contributes a framework, a study of synergies between system parameters and energy-related goals, as well as an autoconfiguration algorithm. It is the first solution that is based on the mentioned synergies and employs the concept of stylesheets for device-specific interpretation of system-wide configuration suggestions. The evaluation has shown that auto-configuration can be executed very fast and achieves much higher levels of fulfillment of operator targets than static configurations.

Halogenated naphthoquinones act as inhibitors of photosynthetic electron flow. I50 concentra­ tion for inhibition of methylviologen reduction were found to range between 2 × 10-5 m to 2 × 10-6 M. Comparing their effects on several partial reactions of electron flow, the inhibition site of the naphthoquinones was found to be at the reducing site of PS II. Studies of fluorescence transients in presence of halogenated naphthoquinones give further evidence for a site action similar to that of diuron and different to that of DBMIB. All naphthoquinones act as quenchers of chlorophyll fluorescence with pure chlorophyll a, and with much higher efficiency in green algae and chloroplasts. It is concluded, that the halogenated naphthoquinones act similar to PS II-inhibitors like diuron, but do not share a common binding site at the PS II-complex. Implications of a possible involvement of phylloquinone K 1 in photosynthetic electron transport are discussed. The synthesis of 2-chloro-as well as 2-bromo-3-isopropyl-1,4-naphthoquinone is described.

This paper explores a media-ecological perspective on film-education practice. Drawing from their own experiences of teaching film (at the Austrian Film Museum and the KurzFilmSchule, Hamburg) the authors challenge monolithic theories of film education, suggesting instead that film education practices are shaped by context, and are relational to the spaces and institutions in which they take place. While the paper takes as its core point of departure Alain Bergala's The Cinema Hypothesis , its intention is to shift the way we look at and reflect on film education from one text towards a multiplicity of practices. Finally, the essay considers the extent to which each of these regional theorizations are bound to their specific conditions of practice and the extent to which they still carry within them a shared understanding of the aims of film education.