OBJECTIVES There is little information about continued use of point-of-use technologies after disaster relief efforts. After the 2004 tsunami, the Red Cross distributed ceramic water filters in Sri Lanka. This study determined factors associated with filter disuse and evaluate the quality of household drinking water. METHODS A cross-sectional survey of water sources and treatment, filter use ...

• Assortative interests and capacity constraints shape stable friendship networks. For intermediate assortativity extremely partially homophilic patterns co- exist. Due to relations also feature heterophily. There is a conflict between welfare maximizing We study networks under the assumption that people are constrained build qualities of their relations. investigate connection (exogenous) asso...

The current study investigates performance in two-stage production systems through the measurement of capacity utilization (CU). In short-run, the degree of capacity utilization depends on the ability of decision making units to utilize fixed production factors. To develop this indicator in two-stage production processes, a modified SBM network DEA model is proposed. A numerical example is also...