rheological characteristics of al2o3, cuo and tio2 nano particles were investigated in oil asthe base fluid at 1 and 2 wt.%. constitutive relations for non-newtonian fluid were discussedbased on the power-law model. measured viscosities of each nanofluid were used to evaluatethe power-law and consistency index. results indicated that the nanofluid viscosity decreasedby increasing the concentrat...

Introduction Foodstuffs are known to contain natural and artificial radionuclides. Determination of radionuclide concentration is of great significance for the protection of human health. The main objective of the present study was the quantification of radionuclides in tea samples, cultivated in Guilan Province in North of Iran. Materials and Methods The activity concentrations of 226Ra, 232Th...

OBJECTIVES The aim of this study was to determine the values of salivary urea in subjects with different caries activity. MATERIAL AND METHOD The planned trials were conducted in 80 children of both sexes, aged 16 years, with different caries activity. Based on the condition of teeth, the DMFT-index, respondents were divided into two groups: the first group consisted of 40 examinees with a lo...

in order to evaluate the relationships between some traits of iranian rice seedlings under saline conditions,,75 iranian cultivars as traditional, improved and introduced cultivars were used, as a randomized complete block design experiment with 3 replications at rice research institute of iran in three levels of salinity (normal ,1.2 , 4 and 8 ds.m-1) in 2006. root and shoot length, root and s...

BACKGROUND We studied the usefulness of a new assay method that detects only the intact human osteocalcin molecule in haemodialysed patients. METHODS Iliac bone biopsy specimens obtained from 62 haemodialysed patients were analysed. RESULTS Bone formation rates (BFR/BS) correlated positively with serum intact osteocalcin concentrations (n=62), osteocalcin concentrations assayed by a convent...

Aim: To assess insulin secretion/insulin resistance index in predicting the risk for future T2DM Experimental Design and Methods: 1551 non-diabetic subjects from the San Antonio Heart Study received an OGTT with measurement of plasma glucose and insulin concentrations at 0, 30, 60, and 120 minutes at baseline and after 7-8 years of follow-up. Insulin secretion/insulin resistance index was calcu...

carbon dioxide (co2) concentration of the global atmosphere has increased during the last decades. increasing global atmospheric co2 concentrations are expected to influence crop production. in order to evolution of co2 concentration effects on morphophysiologycal traits in tagets, ageratum and gauilardia, a factorial experiment based on completely randomized design with 3 replications and 12 t...