abstract surface soil shear strength is an effective parameter in soil erosion and runoff modeling, and known as soil erodibility index. this study was conducted to investigate and predict soil shear strength in central zagros region using multiple linear regressions (mlr). the study site was selected in rangeland and degraded-rangeland landuse with an area of 23562 ha. based on the maps of geo...

background: routine repeat testing of critical laboratory values is very common these days to increase their accuracy and to avoid reporting false or infeasible results. we figure that repeat testing of critical laboratory values has any benefits or not.   methods : we examined 2233 repeated critical laboratory values in 13 different hematology and chemistry tests including: hemoglobin, white b...

this study aimed to evaluate the reliability factors, and identify causes of error in direct anthropometry method. after training three beginner anthropometrists and following the instructions of anthropometric standards, 48 body dimensions of 42 male students were measured three times. in other words, the physical dimensions of each subject were measured for 9 times. all participants were wear...

purpose this preliminary study aimed to determine the intrarater reliability of the quantitative tests for the study of non-specific low back pain. methods test-retest reliability of the measurements of ratio data was determined by an intraclass correlation coefficient (icc), standard error of measurements (sems), coefficient of variation (cv), and one-way repeated measures anova using the valu...

Drought is a climate phenomenon which might occur in any climate condition and all regions on the earth. Effective drought management depends on the application of appropriate drought indices. Drought indices are variables which are used to detect and characterize drought conditions. In this study, it was tried to predict drought occurrence, based on the standard precipitation index (SPI), usin...