Aim: Urinary reflux is a probable reason of nephrolithiasis among children. This study aimed to assess the relationship between urinary reflux and other reason of stone formation in children.Methods: This cross-sectional study was carried out with 199 children diagnosed with nephrolithiasis using ultrasonography. They were hospitalized in a referral children hospital in an urban area of in Iran...

BACKGROUND Experimental animal studies have demonstrated that myocardium at risk, residual collateral flow, and duration of coronary artery occlusion are important determinants of final infarct size. The present study examined these variables in patients with acute myocardial infarction in relation to final infarct size. METHODS AND RESULTS Myocardium at risk was assessed with hexakis(2-metho...

In a series of 104 patients with renal cell carcinoma, a variety of clinical and histological factors were analyzed to establish their value as prognostic factors. In a univariate analysis (log-rank test), the presence or absence of symptoms, tumor size, pT, N, M, pV categories, TNM stage, Robson stage, nuclear grade and cell type were significantly associated with cause-specific survival, whil...

Beneficiation of a low-grade iron ore was investigated by combination of the low-intensity magnetic separation and reverse flotation methods. The main constituents of the representative sample were 36.86% Fe, 8.1% FeO, 14.2% CaO, 13.6% SiO2, and 0.12% S based on the X-ray fluorescence, titration, and Leco analysis methods. The mineralogical studies by the X-ray diffraction, scanning electron mi...

Background: One of the main problems in ART is low pregnancy rates. The factors involved in successful pregnancy include; 1. mother related factors such as the status of endometrial receptivity and hormonal status of the mother. 2. embryo related factors such as; number of transferred embryo, embryo scores including: number and size of the blastomeres, and their fragmentation. The aim of the pr...

the molecular basis of metastatic potential of human breast carcinoma cells can be useful information to determine the practical implications in the diagnosis, determining prognosis and treatment of breast cancer. the aim of this study was to identify predictors of aggressive biological behavior and metastatic potential in breast carcinoma among a number of intrinsic biomarkers of tumor cells. ...

background: breast cancer is the most common cancer after lung cancer and the second cause of death. in this study we compared weibull and lognormal cure models with cox regression on the survival of breast cancer. study design: a cohort study. methods: the current study retrospective cohort study was conducted on 140 patients referred to ali ibn abitaleb hospital, rafsanjan southeastern iran f...

this study deals with bioleaching of the low grade uranium ore of saghand mine in iran using a mixed culture of mesophilic bacteria (acidithiobacillus ferrooxidans, acidithiobacillus thiooxidans and leptospirillum ferrooxidans). experiments were carried out in shaking flask examining the effect of temperature, initial ferrous ion concentration, pulp density and particle size. variations of ph, ...