Rock abrasivity, as one of the most important parameters affecting the rock drillability, significantly influences the drilling rate in mines. Therefore, rock abrasivity should be carefully evaluated prior to selecting and employing drilling machines. Since the tests for a rock abrasivity assessment require sophisticated laboratory equipment, empirical models can be used to predict rock a...

OBJECTIVE To evaluate the correlation between Doppler echocardiography (DE) and right heart catheterization (RHC) derived pulmonary artery pressures and to assess the impact of right atrial (RA) pressures on this correlation. STUDY DESIGN Cross-sectional analytical study. PLACE AND DURATION OF STUDY Cardiology Department, Tahir Heart Institute, Chenab Nagar, from June 2013 to December 2014....

This chapter first reviews the major consequences of ordinal measurement in Confirmatory Factor Analysis (CFA) models and introduces the reader to the Polychoric correlation coefficient, a measure of association designed to avoid these consequences. Next, it presents the results of a Monte Carlo experiment in which the performance of the estimates of a CFA model based on Pearson and Polychoric ...

this paper investigates the role of factors affecting the quality of the service provided by state banks in karaj in their key customers’ satisfaction. the conceptual framework of this research shows the effect of factors such as empathy, assurance, responsiveness, reliability and physical realities on customer satisfaction. using a descriptive method, this idea has investigated through using a...

AIMS To investigate the correlation between body weight and defibrillation threshold (DFT) for transvenous lead systems using a porcine model. METHODS AND RESULTS Twenty-eight pigs were anaesthetised and DFTs assessed in single and dual coil configurations using a four-reversal binary search method. DFT was correlated with body weight in the RV --> Can and RV --> SVC + Can configurations. A P...

On the basis of 2200 small (10-100) samples obtained from four random number populations, it is shown that the rank correlation coefficient, p, is 88 adequate a measure of concordance 88 the Pearson product-moment correlation, T. The samples were obtained by using pseudo-random linear and normal number generators for bivariate populations with expected correlation cC'efficientB, r~, of 0.0 and ...

this study examined the relationship between psychological ownership dimensions and deviant behavior of physical education teachers in bojnourd city. this study was applied in terms of aim and descriptive - correlation in terms of data collection. the statistical population consisted of male and female physical education teachers in bojnourd city (n=160) and 113 teachers were randomly selected....

background and objectives: life satisfaction is one of the most important indicators for evaluation of mental health status in general population including university students. in this field, the appropriate tool is necessary. so, this study was carried out in order to assess the reliability and validity of the swls in the students of kashan nursing & midwifery faculty (knmf), kashan, iran, in ...

BACKGROUND To understand cartilage oligomeric matrix protein (COMP) mechanism network from human normal adjacent tissues to lung adenocarcinoma. METHODS COMP complete different activated (all no positive correlation, Pearson CC < 0.25) and uncomplete (partly no positive correlation except COMP, Pearson CC < 0.25) network were identified in higher lung adenocarcinoma compared with lower human ...