AIMS To establish and quantify the main reasons for treatment abandonment in children with cancer in Sub-Saharan Africa through a systematic review of the literature. BACKGROUND Great advances have been made in the treatment of childhood cancer, however this requires that families are able to complete treatment. Failure to do this is referred to as treatment abandonment, which is recognized a...

Land-use history is an important determinant of vegetation patterns in many ecosystems world-wide (Foster 1992, Orwig and Abrams 1994, Verheyen et al. 1999, Dahlstrom et al. 2006). Forest composition has been reported to differ between sites following agricultural abandonment compared with nearby unplowed soils (Glitzenstein et al. 1990, Motzkin et al. 1996). Differences have also been reported...

The Nigerian Government is developing infrastructure guided by the United Nations (UN) call for sustainable development. However, uncompleted government (roads, bridges, buildings, dams and others) projects litter entire landscape of country. This research investigates causes abandonment in Nigeria through literature review distribution questionnaire. It also posits possible solutions to menace...

The cure rate of childhood cancer may be as high as 80% in high-income countries, but frequently is less than 35% in low-income countries (Smith et al., 2010). Poor treatment adherence by health-care providers, parents and patients importantly contributes to this difference in survival. Abandonment of treatment, a severe form of non-adherence, is one of the most common reasons for treatment fai...

We consider a multi-class queueing system with multiple homogeneous servers and customer abandonment. For each customer class i, the holding cost per unit time, the service rate and the abandonment rate are denoted by ci, μi and θi, respectively. We prove that under a many-server fluid scaling and overload conditions, a routing policy that assigns priority to classes according to their index ci...

The objective of this study was to compare organic carbon (C) accumulation in plantations (PL) and natural succession (NS) established on fallow lands along a 50-year chronosequence in the eastern mixed forest subzone of Quebec (Canada). Aboveand below-ground woody biomass were estimated from vegetation measurement surveys, and litter and soil (0–50 cm depth) C from samplings. At the year of ab...

Examination of coprolites excavated from archaeological sites in the Americas demonstrates excellent preservation of helminth eggs and, in some cases, larvae. To gain an understanding of helminth parasitism in prehistory on the Colorado Plateau of Arizona, New Mexico, and Utah, 319 coprolites from 5 archaeological sites were analyzed. Helminth eggs and larvae were recovered after the coprolites...

We propose a new methodology for real-time mobile mixed reality systems that feature realistic simulations of animated virtual human actors (clothes, body, skin, face) who augment real environments and re-enact staged storytelling dramas. Although initially targeted at Cultural Heritage Sites, the paradigm is by no means limited to such subjects. The abandonment of traditional concepts of stati...