The impact of some environmental factors on malaria parasite prevalence was investigated in rural Bolifamba, Cameroon. The study population comprised 1454 subjects aged 0 - 65 years. Malaria parasite prevalence was higher in the rainy (50.1 %) than in the dry season (44.2 %) with a significant difference (P = 0.001) in mean parasite density between seasons. Individuals < 15 years old had signif...

Tall alpine herb field is largely absent from the Tasmanian alpine zone. This absence has been attributed to marsupial grazing. Small islands in the upper Ouse River valley are partly dominated by Craspedia paludicola, a showy tall alpine herb. The herbs dominate on the upstream ends of the islands. The surrounding vegetation on the banks is mainly grassland. The tall herbs are a very minor ele...

from a village, which strove to combine rustic simplicity with the quality of a fashionable watering-place, into the extensive and populous West-end of the neighbouring city. The Clifton of to-day occupies nearly a square mile of surface, bounded on the east and north-east by Bristol and its northern suburbs; on the south by the floating harbour of Bristol; on the south-west by the Avon in its ...

A new method of land cover mapping from satellite images using granulometric analysis is presented here. Discontinuous landscapes such as steppian bushes of semi arid regions and recently growing urban settlements are especially concerned by this study. Spatial organisations of the land cover are quantified by means of the size distribution analysis of the land cover units extracted from high r...

Real-time occlusion handling is a major problem in outdoor mixed reality system because it requires great computational cost mainly due to the complexity of the scene. Using only segmentation, it is dicult to accurately render a virtual object occluded by complex objects such as trees, bushes etc. In this paper, we propose a novel occlusion handling method for real-time, outdoor, and omnidirec...

Leaf area index (LAI), one of the most crucial vegetation biophysical variables, is required to evaluate structural characteristic plant communities. This study, therefore, aimed LAI ecoregions in Iran obtained using Sentinel-2B, Landsat 8 (OLI), MODIS, and AVHRR data June July 2020. A field survey was performed different throughout Ardabil Province during 2020 under satellite image dates. Laip...

The coffee agroforestry system provides an ideal platform for the study of spatial ecology. The uniform pattern of the coffee plants and shade trees allows for the study of pattern generation through intrinsic biological forces rather than extrinsic habitat patchiness. Detailed studies, focusing on a key mutualism between an ant (Azteca instabilis) and a scale insect (Coccus viridis), conducted...