sodic soil is one of the most common problems of limiting agricultural production that related on irrigation. saturated hydraulic conductivity is one of hydrodynamic characteristics in evaluating transmission flow through underground levels. to investigate the role of increment of exchangeable sodium in hydraulic conductivity changes (as characterized by the mobility of water in soil) an experi...

background: the aim of this study was to evaluate the possible protective effect of sodium selenite on serum, liver, and kidney antioxidant enzymes activities in alloxan-induced type 1 diabetic rats. methods: forty sprague-dawley male rats were randomly divided into four groups; group one as control, group two as sham-treated with sodium selenite by 1 mg/kg intraperitoneal (i.p.) injections dai...

the effects of cementation and the physical properties of grains on the shear behavior of grouted sands are investigated in this paper. the consolidated-undrained triaxial shear behavior of three grouted carbonate sands with different physical properties, including particle size distribution, particle shape and void ratio, was studied. two sands were obtained from the north shores of the persia...

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introduction: the purpose of the present study was to evaluate the different concentrations of sodium hypochlorite activated with laser in removing of the smear layer in the apical, middle, and coronal segments of root canal walls by scanning electron microscopy analysis. methods: sixty single-rooted human mandibular teeth were decoronated to a standardized length. the samples were prepared by ...

background and aims. current chemical methods may not efficiently disinfect dental stone casts. the aim of this study was to investigate if microwave irradiation is effective for disinfection of stone casts. materials and methods. in this laboratory study, three groups (n = 162) of prepared spherical stone beads as carriers with a diameter of 10 mm were inoculated by separately soaking in three...

this study investigates the effectiveness of the antinociceptive effects of diclofenac, an nsaid, on the nociceptive behavior of morphine-treated rats on formalin test.rats were treated with morphine-containing drinking water for twenty one days, which induced morphine dependence. the antinociceptive effects of 8, 16, and 32 mg/kg doses of diclofenac were then evaluated and compared with distil...

introduction: the aim of this study was to compare the efficacy of two irrigants on decreasing the pain and swelling at different times after treatment of necrotic pulp. materials and methods: fifty patients with single canal tooth and necrotic pulp were selected and divided into two groups, twenty-five in each. rotary files were used for preparing the canals and 0.2% chlorhexidine gluconate an...

objective(s) arsenic compounds are potent human carcinogen and produce a variety of stress responses in mammalian cells. recently sodium arsenite has been recommended to be used as anti malignancy drug by american food and drug administration (fda). in this study, we aimed to determine the apoptosis inducing effect of sodium arsenite on rat bone marrow mesenchymal stem cells exposed in vitro. m...