the aim of this randomized controlled clinical trial was to investigate the effect of a new iranian toothpaste and a commercially available toothpaste containing desensitizing agent (5% potassium nitrate) on dentine hypersensitivity in a 24-week study.fifty healthy volunteers, who had at least two sensitive root surfaces, completed the study period. the participants were randomly given one of t...

In their recent article, Kristian Ängeby et al. (4) reported a novel test for drug susceptibility testing of Mycobacterium tuberculosis. However, it should be clarified that this method was previously published in 1989 (3) by Emil Kalfin, (National Institute for Lung Diseases, Sofia, Bulgaria) and Andreas Engibarov (National Center of Infectious and Parasitic Diseases, Sofia, Bulgaria). It is n...

Optimum concentrations of nitrogen and potassium on in vitro microtuberization of Agria, a popular variety of Potato, Solanum tuberosum L., were evaluated. The concentrations of 0, 0.5, 1, 1.5, and 2 folds of standard concentrations of NH4NO3 (1650 mgl) and KNO3 (1900 mgl) were used in Murashige and Skoog (MS) medium, and their effects were studied on cell number, cell sizes, and number of amid...

Cattle are a natural reservoir of the food-borne pathogen Escherichia coli O157:H7. Therefore, strategies that reduce E. coli O157:H7 prior to slaughter will reduce human exposures to this virulent pathogen. When bacteria that can anaerobically respire on nitrate (e.g., E. coli) are exposed to chlorate, they die because the intracellular enzyme nitrate reductase converts nitrate to nitrite, but...

PURPOSE We evaluated the efficacy of a mouthwash containing potassium nitrate (KNO3) as its main component, along with sodium fluoride (NaF) and cetylpyridinium chloride (CPC). The primary endpoint was the relief of dentin hypersensitivity (DH) against the cold stimuli. The effects on other DH tests and periodontal inflammation were also evaluated. METHODS We used a single-center, double-blin...

In this study different nanofluids with phase change behavior were developed by mixing a molten salt base fluid (KNO3 selected as phase change material) with nanoparticles using the direct synthesis method. The thermal properties of the nanofluids obtained were investigated. Following the improvement in the specific heat achieved, these nanofluids can be used in concentrating solar plants with ...

Sugar palm (Arenga pinnata) is one of the non-timber forest product that has many benefits and still had high economic demands, therefore it necessary to be cultivated due farmers utilizing sugar stands grow naturally. The cultivation so difficult done because there was no efficient effective technology can break dormancy problem yet. objective this research determine effect sanding seeds subme...

Anabaena sp. CA fails to synthesize heterocysts and nitrogenase when grown with KNO3 as the nitrogen source. By contrast, both heterocysts and proheterocysts are synthesized in NH4Cl-containing media to a level nearly commensurate with cells grown in the absence of combined nitrogen. The growth rate of the organism in NH4Cl-containing media was similar to that obtained with KNO3 as the nitrogen...

Medicinal and pesticidal plant propagation is hampered by poor seed germination due to dormancy. This study aimed enhance seedling growth using various pre-sowing treatments. A triplicated two-factor experiment in a Randomized Complete Block design was used. Soaking water at 25°C for 24 h (T1), soaking 60°C hot 10 min (T2), ppm Potassium nitrate (KNO3) treatment (T3), 20 (T4), Treating ...