Abstract: Nano-structural synthesized materials can be fabricated utilizing intensive milling after combustion synthesis. The Al2O3-TiB2 ceramic composite has been synthesized by aluminothermic reactions between Al, Ti (TiO2), and B (B2O3 or H3BO3). Boric acid (H3BO3) is less expensive than boron oxide, and after being dehydrated at 200°C, boron oxide will be obtained. In this study, Al, TiO2, ...

In Germany the addition of the trace element boron as boric acid or borax to food supplements was not permitted up to now. However, this situation could soon change since the laws in the EU Member States are to be approximated and its addition is permitted in other European countries. If this happens, boron could also go on the market in Germany as an ingredient in food supplements. Against thi...

Studies were conducted on the enhancement of pathogenicity of Bacillus thuringiensis by 1% boric acid against various species of termites. The increase in virulence of Serratia marcescens by 1% Potassium chloride or 1% Sodium citrate against the workers of M. championi has also been established. The increase in virulence is confirmed by the enhancement ratios, which are ranging from about 1.5 t...

In this paper, we have used a saturated five-membered N-Heterocyclic carbene (5SIDipp = 1,3-bis-(2,6-diisopropylphenyl)imidazolin-2-ylidine) for the synthesis of SNHC-haloboranes adducts and their further nucleophilic substitutions to put unusual functional groups at central boron atom. The reaction 5-SIDipp with RBCl2 yields Lewis-base adducts, 5-SIDipp·RBCl2 [R H (1), Ph (2)]. hydrolysis 1 gi...

In an attempt to decrease ascorbate interference on the ion-chromatographic determination of urinary oxalate, we compared the effectiveness of four different methods for ascorbate elimination by analyzing a representative urine pool supplemented with successive ascorbate additions. Two of the methods--treatment with ferric ions or boric acid--have been described elsewhere; treatments with nitri...

In this study, the effect of storage at different times and temperatures on in vitro olive pollen germination was investigated. Pollens Gemlik Domat cultivars GE119 GK138 genotypes were stored +4 °C, -20 -80 °C for 7, 35, 200, 365 days, respectively. status determined by petri agar method, choosing most suitable nutrient medium each olive. The media Gemlik, Domat, GE119, pollens 50 ml water + 1...

Dimerization of rhamnogalacturonan-II (RG-II) via boron cross-links contributes to the assembly and biophysical properties of the cell wall. Pure RG-II is efficiently dimerized by boric acid (B(OH)3 ) in vitro only if nonbiological agents for example Pb(2+) are added. By contrast, newly synthesized RG-II domains dimerize very rapidly in vivo. We investigated biological agents that might enable ...

Sir: As reported in the previous paper,') thielavins A (1) and B (2) produced by Thielavia terricola SANK 10475 are potent inhibitors of prostaglandin (PG) synthetase. Thielavins A and B were shown to have 0-substituted salicylic acid as evidenced by UV absorption at 310"315nm in basic MeOH and 275 278 nm in acidic MeOH and by IR absorption at 1760, 1610 and 795 cm-1. Thielavins A and B possess...