backgrounds and aims: the purpose of this study was to examine the effects of potassium, sodium and zinc metal ions on ammonium sulfate fraction of acid phosphatase activity of orange fruit. materials and methods: acid phosphatase was extracted and purified from orange fruit and then various samples as well as a control sample were prepared in vitro. in addition to substrates, ions of potassium...

Seed mediated aqueous chemical growth (ACG) route was used for the growth of ZnO nanostructures on Si substrate in four different growth mediums. The growth medium has shown to affect the morphology and the size of the different nanostructures. We observed that the medium containing zinc nitrate anions yields the nanorods, in a medium containing zinc acetate anions nano-candles are obtained. Wh...

Background: Approximately 60% of term neonates and 80% of preterm ones suffer from hyperbilirubinemia in theirfirst week of life. This study sought to characterize the therapeutic effect of oral zinc sulfate on neonatalhyperbilirubinemia.Methods: In this randomized, double-blind, placebo-controlled clinical trial, 70 term neonates with total serumbilirubin (TSB) level ≥ 20 mg/dl were enrolled. ...

in order to study the effects of foliar application of zn and k on yield and some physiological traits of spring safflower (carthamus tinctorius l.), cv. esfahan 14, under drought stress, a pot experiment was conducted in research greenhouse of yasouj university. experiment was a factorial based on completely randomized design with three replications. factors consisted of drought stress (s1- wi...

The formation of the first membrane, swelling crystal by incoming water from semipermeable membrane and irregular shaped branches were observed optical microscopy, when zinc sulfate heptahydrate crystals immersed in saturated borax solution. powders obtained mixing dilute aqueous solutions had B, O, Na, S Zn elements. Presence Na 1/2B4O7.xH2O was indicated EDX analysis. molar ratio B 2O3/ZnO ar...