expansive soils may cause disaster if not adequately taken care of. lime continues to be commonly used for modification of these types of soils although it may have limited success in some applications. thus, the present study was performed to address the viability of using silica fume (sf) as industrial waste to modify the behavior of expansive soils. this achieves the double objectives of ove...

numerous ecological risk assessment methodologies have been developed over the last twenty years around the world for evaluating effects of pollutant on receptors such as different wildlife species. but so far such methods have only rarely been used to determine potential ecological risks in iran. therefore in this study we used one of these methodologies (eco-ssls) to determine ecological risk...

conclusions it can be concluded that residential-road land uses show the considerable pollution index and ecological risk. materials and methods soil samples were collected from a depth of 0-20 cm at 16 stations with different users. the samples were passed through a 2-mm sieve after air drying. to determine the concentration of heavy metals, the samples were extracted by acid chloride and nitr...

Here we report the complete genomic sequence of the bacterium Arthrobacter sp. strain LS16, consisting of a single circular chromosome of 3.85 Mb with no identified plasmid. Data contained within will facilitate future genetic modification and engineering of the Arthrobacter sp. LS16 metabolic network to enhance traits relevant to bioremediation and bioproducts.

background: turkey, especially the northern part of it, was one of the countries which were contaminated by the chernobyl accident.  rize is a city located in the northeastern district of turkey which was heavily influenced by the chernobyl nuclear accident. materials and methods: in this study, the activity concentrations of natural (226ra, 232th, 40k) and artificial (137cs) were measurements ...

On a land suitability assessment map that is derived from an overlay of n parent maps, each bearing k land capability categories, how many permutations of land suitability scores can there be when the scores are calculated by the commonly used rating and weighting method? In this paper, we estimate that this number is between k n(n−1) 2 and kn+1!/(kn!kn−1! · · · k!)k−1.