446 resultados para Werk
Resumo:
Uwe Lausens Werk zählt zu den wichtigen Positionen der figurativen Malerei der 1960er-Jahre in Deutschland. Innerhalb von nur neun Jahren schuf der mit 29 Jahren verstorbene Autodidakt ein von rasanten Entwicklungssprüngen gekennzeichnetes künstlerisches Werk, das von einer sehr eigenständigen Verarbeitung der ab 1964 in Deutschland präsenten Pop-Art gekennzeichnet ist. Der folgende Text erschien anlässlich der von der Autorin in Zusammenarbeit mit Pia Dornacher kuratierten Retrospektive »Uwe Lausen. Ende schön alles schön« in der Schirn Kunsthalle Frankfurt (3. März bis 13. Juni 2010) und ist im gleichnamigen Ausstellungskatalog, erschienen bei Hachmann Edition (Bremen), abgedruckt. Zur zweiten Station im Museum Villa Stuck, München (24. Juni bis 3. Oktober 2010) erscheint das von der Autorin bearbeitete Werkverzeichnis der Gemälde, auf das die hier im Text angeführten Werkverzeichnis-Nummern (WVZ) verweisen. Ab 22. Oktober 2010 ist die Ausstellung in der Sammlung Falckenberg, Hamburg zu sehen (bis 23. Januar 2011).
Resumo:
Zum 100. Geburtstag präsentiert diese grosse Jubiläumspublikation die Entwicklung des SWB. Ein bedeutendes Stück Schweizer Kulturgeschichte!
Resumo:
Susceptibility of different restorative materials to toothbrush abrasion and coffee staining Objective: The aim of this study was to evaluate the susceptibility of different restorative materials to surface alterations after an aging simulation. Methods: Specimens (n=15 per material) of five different restorative materials (CER: ceramic/Vita Mark II; EMP: composite/Empress Direct; LAV: CAD/CAM composite/Lava Ultimate; COM: prefabricated composite/Componeer; VEN: prefabricated composite/Venear) were produced. Whereas CER was glazed, EMP and LAV were polished with silicon polishers, and COM and VEN were left untreated. Mean roughness (Ra and Rz) and colorimetric parameters (L*a*b*), expressed as colour change (E), were measured. The specimens underwent an artificial aging procedure. After baseline measurements (M1), the specimens were successively immersed for 24 hours in coffee (M2), abraded in a toothbrushing simulator (M3), immersed in coffee (M4), abraded (M5) and repeatedly abraded (M6). After each aging procedure (M2-M6), surface roughness and colorimetric parameters were recorded. Differences between the materials regarding Ra/Rz and E were analysed with a nonparametric ANOVA analysis. The level of significance was set at α=0.05. Results: The lowest roughness values were obtained for CER. A significant increase in Ra was detected for EMP, COM and VEN compared to CER. The Ra/Rz values were found to be highly significantly different for the materials and measuring times (M) (p<0.0001). Regarding E most alterations were found for EMP and COM, whereas CER and LAV remained mostly stable. The E values were significantly different for the materials and M (p<0.0001). Conclusion: The ceramic and the CAD/CAM composite were the most stable materials with regard to roughness and colour change and the only materials that resulted in Ra values below 0.2 μm (the clinically relevant threshold). Venears and Componeers were more inert than the direct composite material and thus might be an alternative for extensive restorations in the aesthetic zone.