The Urine Diverting Dehydration Toilet (UDDT) is one of a wide range of technologies Ecological Sanitation (Ecosan) offers. A commonly used type is the so called solar UDDT, constructed with inclined vault doors or panels which are usually made from black iron sheets to increase the temperature inside the vaults and therefore would facilitate dehydration and hygienisation. The study aims to giv...

In this paper we provide a novel linear algorithm t o est imate the direction of translation and the normal t o the scene plane, given a stereo pair with known correspondences between the corners in the images. Planar parallax which arises naturally in planar scenes( and can also be defined with respect t o virtual planes), is exploited t o achieve this. Based o n the parallax vectors and the h...

the notion of sustainable development has rapidly gained considerable attention since the lastdecades of the twentieth century. it has become a locus for global paradigm shift on environment and development issues particularly after rio conference in 1992. the comparative analysis of agenda 21 and major un documents, mdg, and rio+20 as well as some major sources are made to provide a context fo...

A one-size-fits-all curriculum cannot address the issues faced by rural multigrade teachers and learners. In South Africa, despite government efforts to relieve adversity, poverty in rural areas is still rife and poor education still fails to lift people out of it (Joubert 2010). Equality is essential in ensuring that all South African children have access to quality education where they can le...

The digital divide describes the gap among individuals, households, businesses and geographic areas on socio-economic level, as well as unequal opportunities to access information and communication technologies (ICTs). Castells holds the view that informationalism of shifting global networks creates a volatile and ruthless world. Those who do not contribute to the new world economies are discar...

The situative perspective shifts the focus of analysis from individual behavior and cognition to larger systems that include behaving cognitive agents interacting with each other and with other subsystems in the environment. The first section presents a version of the situative perspective that draws on studies of social interaction, philosophical situation theory, and ecological psychology. Fr...

ecological footprint analysis in agriculture is a new and evolving subject. the main purpose of the study was to assess environmental sustainability of conventional and conservation tillage systems using ecological footprint analysis in hamedan province. global hectares (gha) were used to measure the ecological footprint unit. data was collected through questionnaires and use of cross-sectional...

the notion of sustainable development has rapidly gained considerable attention since the lastdecades of the twentieth century. it has become a locus for global paradigm shift on environment and development issues particularly after rio conference in 1992. the comparative analysis of agenda 21 and major un documents, mdg, and rio+20 as well as some major sources are made to provide a context fo...