this study investigated the feasibility of using different extracting solutions at various concentrations to remove copper from low permeability silty loam soils, which have a high buffering soil, ph of 7.6, where it spiked with copper at concentration of about 1500 mg/kg to represent soil conditions. the most efficient extracting solutions could be used as purging/extracting solutions in other...

The seasonal study of wing dimorphism in the European mole cricket, Gryllotalpa gryllotalpa (Linnaeus, 1758) (Orthoptera: Gryllotalpidae), was carried out in northwest Iran. Based on present research, the long-winged (LW) morph appeared in early-mid spring when vegetation density is low and the crickets need to fly to search for food. Study of foretibiae showed that the dactyls are elongated an...

abstract uranium as a natural radioactive heavy metal widely disperses throughout the earth's crust. in many cases, the natural abundance has been re-distributed due to anthropogenic activities, resulting in radionuclide contamination in groundwater and surface soil. uranium through the plant uptake can enter the chain. the degree of speciation of radio nuclides in soils in areas with differing...

In the present study basidiomycetous yeast species were characterised from soil samples in different regions of Iran. Soil samples were collected from 5–15 cm depth, subsequently yeasts were isolated and purified. Yeast isolates were identified using D1/D2 domains of 26S rRNA and physiologic tests. The results of this study revealed a rich diversity amongst basidiomycetous yeast species in the ...

heavy metals, e.g. cd and pb emit and release into the environment during cement production and are deposited into soils. this research was carried out to determine the concentration and spatial distribution of trace elements in top soils around the kurdistan cement factory, west of iran in order to evaluate the effect of cement factory on the environment. twenty-four soil samples were collecte...

BACKGROUND Cadmium and lead compounds are classified as human carcinogens by several regulatory agencies. Twenty five percent of all cancer-related deaths are attributed to gastrointestinal cancers (GI Ca). We investigated the levels of 2 different heavy metals (Cd and Pb) in the soils of the Lenjanat region, Isfahan province, Central Iran where intensive agriculture is surrounded by different ...

In this paper we propose a conditional logic IBC to represent iterated belief revision. We define an iterated belief revision system by strengthening the postulates proposed by Darwiche and Pearl [3]. First, following the line of Darwiche and Pearl, we modify AGM postulates to make belief revision a function of epistemic states rather than of belief sets. Then we propose a set of postulates for...