base and precious metals associated with porphyry, epithermal and acid sulphate or high-snlphidation hydrothermal systems (Panteleyev, 1992; Panteleyev and Koyanagi, 1993, 1994). The majority of these systems are associated with the Early to Middle Jurassic Island Plutonic Suite and Early Jurassic B O M ~ Group rocks. The regional mapping component of this study focused primarily on potential t...

The pH-dependence of sulphate-activated phosphorylase b has been studied in the direction of glycogen synthesis. The bell-shaped curve of the pH-dependence of the catalytic constant for the AMP-activated enzyme showed pK values of 6.1 and 7.3, but the curve for the enzyme activated by 0.9 M ammonium sulphate showed a drop of activity on the acid side at much higher pH values. Its bell was centr...

A soluble thiosulphate-oxidizing multi-enzyme system, precipitated from a crude cell extract of Thiobacillus A2 with ammonium sulphate, has been resolved into four essential components by DEAE-Sepharose chromatography, gel filtration of Sephadex G-1 00 and G-200, hydrophobic interaction chromatography on phenyl-Sepharose and preparative isoelectric focusing. Oxidation of thiosulphate to sulphat...

Four simple and sensitive methods for the assay of prazosin hydrochloride (PRH) are developed. These methods are based on the formation of coloured species by treating it either with excess N-bromosuccinimide (NBS) and determining the unconsumed NBS with p-N-methyl aminophenol sulphate (metol)-sulphanilamide (SA) reagent (method A, lambda(max) 520 nm): with 3-methyl-2-benzothiazolinone hydrazon...

The synthesis in vitro of the sulphuric acid esters of ordinary phenols by rat-liver preparations has been demonstrated by De Meio & Tkacz (1952), De Meio, Wizerkaniuk & Fabiani (1953), De Meio, Wizerkaniuk & Schreibman (1954) and Bernstein & McGilvery (1952a, b). De Meio & Lewycka (1955) were able to observe the formation in vitro of dehydroepiandrosterone sulphate by the same type of preparat...

Naegleria fowleri was causative agent of primary amoebic meningoencephalitis (PAM). Accroding to the failure of treatment, several researches reported the activity of chemotherapeutic drugs against N. fowleri but we did not know the drug resistance of the amoebae. The purpose of this study was to examine the effects of drugs (amphotericin B, artesunate, azithromycin, voriconazole, chlorpromazin...

Human N-acetylglucosamine-6-sulphate sulphatase was purified at least 50,000-fold to homogeneity in 78% yield from liver with a simple three-step four-column procedure, which consists of a concanavalin A-Sepharose/Blue A-agarose coupled step, chromatofocusing and Cu2+-chelating Sepharose chromatography. In all, four forms were isolated and partially characterized. Forms A and B, both with a pI ...

Micronutriens deficiency is prevalent in case of drought stress conditions, so complementary boron and zinc nutrition are important for crops to overcome drought stress. This study evaluated the effect of zinc and boron foliar application on physiological traits of sesame under different irrigation levels. The experiment was conducted as a split plot in a randomized complete block design with t...

conclusions this study showed that magnesium sulphate added to sufentanil through pcia is an effective method to alleviate pain in patients undergoing lower limb orthopedic surgery. moreover, we found fewer side effects on magnesium-sufentanil regimen in terms of in nausea, vomiting, and sedation; and patients’ satisfaction in this regimen was more rather than that in the regiment of sufentanil...