A study was conducted in 2010 to investigate the effects of crude oil contaminated soil on biomass accumulation inJatropha curcas seedlings in Asaba, Delta State, Nigeria. Oil levels used were 0.0, 2.0, 4.0, 6.0, 8.0 and 10.0% w/w. The trial was arranged in a randomized complete block design with four replications and monitored for 12 weeks after transplanting. Results showed that contamination...

The occurrence of antibiotics and antibiotic resistance genes in the environment has become a subject of growing concern. The extensive use of vancomycin and other pharmaceuticals may alter the biodiversity of soil microbial communities and select antibiotic-resistant bacteria. Therefore, the purpose of the study was to evaluate the impact of vancomycin and/or vancomycin-resistant Citrobacter f...

Soil characteristics around Kendari City are included in the clay soil category. So far, has not been used optimally. Clay is only as a pile material buildings. The land city of can be made brick interlock material. This research important to carried out utilize surrounding building wall obtain an economical and effective study aimed test Land Use model's compressive strength water absorption p...

Abstract This study sought to use the stress–strain relationship of interlocking stabilized soil block (ISSB) masonry model its behaviour and develop empirical formulae aid in predicting compressive strength. A finite element (FE) analysis adopting Rankine failure criterion was performed using Abaqus software simulate deformability wall which validated through experimental tests. The strength, ...

Nitrate input to a river is largely controlled by land use in its catchment. We compared the information carried by the isotopic signatures of nitrate in 12 Baltic rivers, in relation to the vegetation cover, land use, and fertilization of agricultural land of their catchments. We found isotope values in nitrate ranging from −2 to 14‰ for δ15N and 8 to 25‰ for δ18O. The annual variability of ri...

Soil thrust is a traction force of an off-road tracked vehicle. Existing soil assessment methods assume that continuous shear failure plane exists along the soil-track interface. However, recent experimental works revealed beneath track divided into blocks; each block sheared independently. This study proposed new total method based on block-shaped mechanism, and predicted by existing was compa...