This paper reports a study regarding households’ willingness to pay for private sector solid waste management services. The data originated from a contingent valuation survey conducted in 224 households in Ilorin in southwest Nigeria and was analysed using tobit and censored least absolute deviations models. The use of a robust and consistent estimator to model zero willingness to pay responses...

RAPIDE is a concurrent object-oriented language specifically designed for prototyping large concurrent systems. One of the principle design goals has been to adopt a computation model in which the synchronitation, concurrency, dataflow, and timing aspects of a prototype are explicitly represented and easily accessible both to the prototype itself and to the protofyper. This paper describes the ...

Organizations orchestrate work along a continuum of structured and unstructured activities. Particularly in emergency situations and crisis management scenarios, the organization’s procedures and information systems may not cope with the information and collaboration requirements imposed by the dynamic of unplanned situations, emerging such unstructured work practices. In this paper we present ...

The contribution of this work relates to the field of Arabic text-based document analysis for the detection of plagiarism. This analysis will be carried out according to the triadic computation model of document similarity. The authors propose a hybrid segmentation prototype for Arabic text-based documents that links different processing steps in order to generate the similarity rate between th...

A rapidly changing competitive landscape and dynamic customer expectations require manufacturing firms to seek flexibility in product development. Product concept flexibility (i.e., developing design options) and product prototype flexibility (i.e., creating working models) emerge as effective ways to quickly develop new products that meet competitive challenges and satisfy customer demands. Pr...