This article reports that atomic layer deposition {0002}-textured ZnO films, with nanocolumnar grains and defective sub-stoichiometric structure, exhibit nanocrystalline plasticity and exceptionally low sliding friction and wear.

This article investigates the organizational impact of computer technology on four secondary science teachers’ teaching actions using the construct of community of practice. Analysis of data reveals three social participation structures that collectively orchestrated students’ science content learning: (1) students’ membership, (2) access to the structured tasks, and (3) confirmation of students’ learning of science concepts.