A first survey of entomopathogenic nematodes (EPN) was conducted in three agro-ecological zones of Southern Cameroon in 2007 and 2008. Entomopathogenic nematodes were recovered from 26 of 251 soil samples (10.4%). Three species, Heterorhabditis baujardi, Steinernema sp. A and Steinernema sp. B were found. The two steinernematids were considered unidentified species. Among the positive samples, ...

The large-scale cultivation of S. fusiforme was hypothesized to effectively improve water quality and environmental characteristics. Specifically, such could promote habitat restoration effects by increasing DO pH levels in addition decreasing nitrogen phosphorus within area waters. Phytoplankton diversity also reflect the health This study explored Sargassum on biodiversity ecosystem a phytopl...

Despite their recognized essential role in soil, earthworms tropical environments are still understudied. The aim of this study was to re-evaluate the diversity at regional scale, as well investigate environmental and spatial drivers earthworm communities. We sampled communities across a range habitats six localities French Guiana using three different sampling methods. generated 1675 DNA barco...

algebraic frames are generalizations of fourier transforms on locally compact abelian groups in the sense that the family of vectors forming the frame are replaced by a family of unbounded linear functionals. the paper studies the indexing measure space of the algebraic frames; as the investigation narrows down to the class of lower semiframes, more relations are revealed between the discret...

Non-point source pollution (NSP) and runoff intensities distribution are primarily affected by landscape structure composition. Multiple causalities hinder our ability to determine significant variables that influence NSP. Therefore, we developed an approach integrates the Soil Water Assessment Tool (SWAT), random forest regression model, redundancy analysis, correlation coefficient assess role...

The geochemical characteristics of sediments are important for reconstructing paleoclimatic and paleoenvironmental conditions in the Asian summer monsoon marginal area. However, robust reconstructions require an understanding key factors mechanisms governing spatial variations composition ratio chemical elements modern In this study, 128 surface sediment samples were collected from Bashang area...

The bioavailable contents of heavy metals in karstic soils are a subject increasing concern since the uptake by plants can pose severe threat to food safety and public health. However, their effective factors poorly understood karst regions. Calcareous soil red developed from carbonate clastic rocks, respectively, were chosen typical region (Guilin) southwestern China, total (CT) available (CA)...

The Joint Steering Committee for Development of RDA has been working on a new standard for resource description and access designed for the digital world: RDA. This standard is scheduled to be released at the end of November 2009. RDA will provide a flexible framework for describing all resources analog and digital, i. e. data that is readily adaptable to new and emerging database structures an...

Purpose: Relative dispersion analysis (RDA), a new high pass resolution perimetry (HRP) index, appears to capture a novel aspect of visual field abnormality. The aim of this study was to evaluate the correlation of RDA and other HRP indices with the Humphrey perimeter parameters. Methods: Fifty-six eyes were randomly recruited from among patients at the authors’ clinic. Twenty-nine eyes were cl...

Representational difference analysis (RDA), a technique for the isolation of differences between highly similar complex genomes, was employed for isolation of species-specific markers. These markers can be easily adapted for a high throughput PCR-based assay in which multiple specimens can be simultaneously identified based on the presence/absence of amplification products. One of the important...