BACKGROUND The organochlorine pesticides (OCPs) are among the most commonly used in water streams around the world. Most of these contaminants are highly hydrophobic and persist in sediments of rivers and lakes. Studies have suggested that OCPs may affect the normal function of the human and wildlife endocrine systems. OBJECTIVES The aim of this study is to determine the concentrations of sel...

Due to existence of uncertainties in input geometrical properties of fractures, there is not any unique solution for assessing the stability of slopes in jointed rock masses. Therefore, the necessity of applying probabilistic analysis in these cases is inevitable. In this study a probabilistic analysis procedure together with relevant algorithms are developed using Discrete Fracture Network-Dis...

The DNA-[N 6-adenine]-methyltransferase (Dam MTase) of phage T4 catalyzes methyl group transfer from S-adenosyl-l-methionine (AdoMet) to the N6-position of adenine in the palindromic sequence, GATC. We have used a gel shift assay to monitor complex formation between T4 Dam and various synthetic duplex oligonucleotides, either native or modified/defective. The results are summarized as follows. ...

Penelitian ini dilatarbelakangi oleh minimnya penggunaan model pembelajaran yang menyenangkan dalam mengasah keterampilan berpikir kritis dan memecahkan masalah peserta didik sebagai upaya untuk meningkatkan hasil belajar IPA di kelas 5. Solusi dari permasalahan tersebut yakni Problem Based Learning berbantuan permainan “Mari Mencari Harta Karun”. bertujuan mengetahui pengaruh terhadap V SD Neg...

Upper Gotvand dam is constructed on the Karun River located in the south west of Iran. In this paper, 2D and 3D models of the dam together with the foundation and abutments were constructed and several seepage analyses were carried out. Then the gypsum veins scattered throughout the foundation ground and also the seepage pattern were included in the models, hence the dissolution law of gypsum, ...

Different types of Optimizing the Parameters Hydrological Routing Methods using Particle Swarm Optimization (PSO) Algorithm for Flood in Karun River