Learn More
The term knowledge management (KM) has lost most of its magic during the past few years: While knowledge has been identified as an important resource and key factor for productivity gains and innovation in organizations, there seems to be no generally applicable (and easy) way to utilize this resource. In this paper we present results of a field study that(More)
The development of micro- and nanostructured surfaces which improve the cell-substrate interaction is of great interest in today's implant applications. In this regard, Al/Al2O3 bi-phasic nanowires were synthesized by chemical vapor deposition of the molecular precursor (tBuOAlH2)2. Heat treatment of such bi-phasic nanowires with short laser pulses leads to(More)
In-stent restenosis is a common complication after stent surgery which leads to a dangerous wall narrowing of a blood vessel. Laser assisted patterning is one of the effective methods to modify the stent surface to control cell-surface interactions which play a major role in the restenosis. In this current study, 316 LS stainless steel substrates are(More)
Recent knowledge management initiatives focus on expertise sharing within formal organizational units and informal communities of practice. Expert recommender systems seem to be a promising tool in support of these initiatives. This paper presents experiences in designing an expert recommender system for a knowledge-intensive organization, namely the(More)
The range size of a species can be determined by its current traits and by phylogenetic and biogeographic factors. However, only rarely have these factors been studied in combination. We use data on the geographic range sizes of all 26 Sylvia warblers to explicitly test whether range size was determined by current species-specific traits (e.g., body size,(More)
The integration of immigrants is a big challenge for western societies. In this paper we describe how to bridge between ethnically defined communities by means of computer-supported project work. Our approach is grounded in socio-cultural theories of learning, especially Community of Practice (CoP). To evaluate our approach, we have built up a computer club(More)
Permanent orthopedic implants are becoming increasingly important due to the demographic development. Their optimal osseointegration is key in obtaining good secondary stability. For anchorage dependent cells, topographic features of a surface play an essential role for cell adhesion, proliferation, differentiation and biomineralization. We studied the(More)
Cell responses to surface and contact cell guidance are of great interest in bio-applications especially on nano- and micro scale features. Recently we showed selective cell responses on Al/Al2O3, bi-phasic nanowires (NWs). In this context, Al/Al2O3 NWs were synthesized by the chemical vapor deposition of (tBuOAIH2)2. Afterwards, linear periodic nano- and(More)
Modern western societies are facing the challenges of immigration and integration. The main criterion for social participation and democratic collaboration is the successful integration of immigrants. A lack of social as well as cultural integration, especially among young immigrants, seems to be the consequence of a low level of education and unequal(More)
A Computer Club House (CCH) can be understood as a community of prosumers in which members are producing and consuming personally meaningful artifacts of each other. In a long term case study, we have analyzed learning practices in a German CCH setting. Observing children and their parents working with construction kits, we found that they had problems in(More)