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Citizenship and the media: cultivating agency via civic culture

This text makes the point that we cannot understand civic agency - people's taking on the role of acting as citizens - in a vacuum. The notion of encompassing civic cultures is introduced to analylically anchor civic agency in the horizons of everyday life, practices, and identity

Coldings tool life model applied on tool wear when machining the Maxthal material

Coldings tool life equation for metal cutting tools has been modified to suit the difficult to machine material Maxthal. The dominant tool wear mechanisms during machining of Maxthal are abrasive and adhesive wear and a strongly temperature dependent chemical deterioration. The combination of these three mechanisms leads to a considerable variation in tool life, even when the cutting speed has bee