Überlegungen zur Verortung der Nanotechnologie in einem wissenschafts‐ und technikgeschichtlichen Kontinuum

Reflections about an embedding of nanotechnology in a continuum of the history of science and technology. Nanotechnology is not a completely new technology, we can rather understand it as a continuation and extension of chemical technology. Along this line, it is not only problematic to characterize nanotechnology as a new ‘key technology’ but also the definition of nanotechnology as looking at a particular causality between properties and dimensions of materials seems hardly new. For embedding nanotechnology in such a greater historical context, the development of colloid chemistry at the beginning of the 20^th century by Richard Zsigmondy and Wolfgang Ostwald is shown as an important reference point. Modern theories of supramolecular chemistry as those constituted by Jean‐Marie Lehn and others refer to this line of research in colloid chemistry and lead currently to scientific foundations of some nanotechnological fields. The historical embedding of nanotechnology can hence be used as a contribution for a more realistic evaluation of the technological possibilities as well as for a critical estimation of technological visions.     

The Nice Musical Chairs Model: Exploring the Role of Competition and Cooperation Between Farming and Herding in the Formation of Land Use Patterns in Arid Afro-Eurasia

Following a strictly theory-building approach, we developed an agent-based simulation model, the Nice Musical Chairs model, to represent the competition between groups of stakeholders of farming and herding activities in the arid Afro-Eurasia. The model deepens the questions raised by the results of our former model, the Musical Chairs model, and further introduces three socio-economic mechanisms, which modulate the behavior and performance of stakeholders and their groups. First, we define land use pairing as the awarding, regarding productivity, of any direct cooperation between farming and herding within a group. Second, group management is modeled as the prerogative of a group leadership to manage stakeholders to pursue a particular proportion between farming and herding. Third, we introduce restricted access to pasture as the engagement in territorial control of rangelands in opposition to an open access regime. An exhaustive exploration of scenarios and parameters placed the control over rangelands as the most significant factor in the formation of land use patterns, followed by land use management. While the effect of land use pairing is mild in comparison, it is still a significant factor in group selection and thus in the persistence of particular land use patterns in the long run.     

The Application of the European Spatial Development Perspective: Evidence from the North-West Metropolitan Area

As a strategic document, the European Spatial Development Perspective (ESDP) wants to be 'applied' rather than 'implemented'. Rather than giving shape to spatial development, application is the shaping of the minds of the actors in spatial development. The latter are not passive recipients of messages. They actively explore options, reinterpreting messages on the way. Conformance of outcomes to intentions cannot be assumed. Application is not a separate phase either. Application includes making new working arrangements and elaborating planning documents to make them fit emergent situations. Judging from the ESDP and from how its ideas are being pursued, its makers are well aware of this. Research into the application of the ESDP in the north-west metropolitan area (NWMA) Interreg IIc programme confirms this. So the ESDP may be anything but a paper tiger.