Given a cover of a quasi-uniform space we introduce a concept of lower semicontinuity for multifunctions : → 2 , called -lsc. In this way, we get a common description of Vietoris-lsc, Hausdorff-lsc, and bounded-Hausdorff-lsc as well. Further, we examine set-theoretical and vector operations on...

This paper addresses the question of a preference for primary versus secondary forest among swidden agriculturalists, using data gathered among the tribal Kantu’ of West Kalimantan, Indonesia. The Kantu' have traditionally made a distinction between the two types of forest, based on the...