Heavy metals are brought either by natural processes or human-induced activities as a result of industrial development. Heavy metals continue to pose threats nowadays and threaten human health due to its potential contamination of the food chain. The ability of plants to sequester and exclude pollutants present in the environment is significant in the remediation process. Bioremediation process is a low-cost technology utilizing biological species in remediating the heavily contaminated environment. This study aimed to quantify and determine the ability of different tree species and to accumulate and exclude different heavy metals present in Tampakan copper-gold mining site. This study used a quantitative and exploratory type of methods which aims to determine the heavy metal accumulation of different tree and shrub species of tree species. This includes the collection of soil and plant samples of roots, leaves, and stems across low, middle, and high elevations. Thirty (30) individual plant species were collected across low, middle and high elevations, twenty (22) are considered potential accumulator and for phytoextraction for Pb, two (2) species for phytostabilization for Hg, and eight (8) for Pb using based on their computed EF, BCF, and TF. The metal concentration of different plant component differs significantly for As, Cd, and Pb but not for Hg and Cu. In the mid-elevation, As, Hg, and Cd, differ significantly in terms of metal concentration but not metals Cu and Pb. For high elevation, As, Hg, Cd, differs significantly but not for Cu and Pb using ANOVA at 0.05 confidence interval.
Attenuation correction designed for PET/MR hybrid imaging frameworks along with portion making arrangements used for MR-based radiation treatment wait testing because of lacking high-energy photon weakening data. We present a new method so as to uses the learned nonlinear neighborhoods descriptors also highlight coordinating toward foresee pseudo CT pictures starting T1w along with T2w MRI information. The nonlinear neighborhood descriptors are acquired through anticipating the direct descriptors interested in the nonlinear high-dimensional space utilizing an unequivocal constituent guide also low-position guess through regulated complex regularization. The nearby neighbors of every near descriptor inside the data MR pictures are looked during an obliged spatial extent of the MR pictures among the training dataset. By that point the pseudo CT patches are evaluated through k-closest neighbor relapse. The planned procedure designed for pseudo CT forecast is quantitatively broke downward on top of a dataset comprising of coordinated mind MRI along with CT pictures on or after 13 subjects.
To Compare different soil pore characteristics under different vegetation types for improving soil and water conservation a study was carried out at loess plateau located in Changwu Loess tableland slope. Quantitative analysis of soil porosity, pore number, pore rounding rate and pore fractal dimension was carried out by Computerized Tomography scanning and Image Processing Techniques. The results showed that the soil pore condition under the four types of vegetation utilization was significantly different (P < 0.05), the porosity and pore number showed as Hippophaerhamnoides > Grassland > Platycladusorientalis > Cropland, the pore rounding rate was Cropland > Platycladusorientalis > Hippophaerhamnoides > Grassland and pore fractal dimension was Grassland > Hippophaerhamnoides > Platycladusorientalis > Cropland. With the increase of soil depth, pore parameters showed decreasing trend in general. There was significant (P < 0.001) or (P < 0.05) correlation among soil organic matter, clay content and pore parameters. Their changes had an important influence on soil pore characteristics and the capacity of soil and water conservation.
Charadrius hiaticula on the degree and nature of anthropogenic impact in the conditions of the Arctic tundra of the Yamal Peninsula in the territory of the gas field near the settlement Sabetta was studied. An analysis of the distribution of nests and broods shows a clear tendency of birds to breed in the anthropogenic landscape compared to natural biotopes. Reproductive success was significantly higher in two types of artificial biotopes (on the slopes of sandy embankments of roads and artificial plateaus occupied by residential and industrial facilities and the shores of artificial lake-water intakes) than in two types of natural biotopes (coastal and river beaches). Data obtained shows that the Ringed Plover prefers man-made habitats to their natural counterparts in conditions of low predation and minimal disturbance resulting from human activities. This trend is observed not only in the distribution of nests, but also in the distribution of broods that respond more quickly to various impacts due to their mobility. Nesting success of the Ringed Plover in two of the three types of transformed habitats was higher than in natural ones. Birds also preferred to nest in small fragments of sandy areas adjacent to tundra or lakes. The distance to the infrastructure did not have a significant impact on the density of breeding birds