نتایج جستجو برای: we used r pierson tests
تعداد نتایج: 6055014 فیلتر نتایج به سال:
abstract in aggregate, active forms of reactive silica with mineral names are sometimes associated with sand and gravel in concrete mixture. alkali hydroxides originated from alkalis in the cement or other resources form an alkaline silica gel with this reactive silica which becomes swallowed and expanded during time causing damage to concrete. there have been growing researches on alkaline r...
Method of moments (MOM)-based Monte Carlo calculations are widely used in determining the average radar cross section of randomly rough surfaces. It is desirable in these numerical calculations to truncate the scattering surface into as short a length as possible to minimize the solution time. However, truncating the surface tends to change the solution for the surface fields near the truncatio...
BACKGROUND/AIM Hand movement observation activates mirror neurons, located in brain areas that are vulnerable to Alzheimer's disease. We examined the effects of hand movement observation on cognition in older persons with dementia. METHODS Nursing home residents with dementia (n = 44) watched either videos showing hand movements or videos showing a documentary for 30 min, 5 days a week, for 6...
all analytical methods are generally based on the measurement of a parameter or parameters which are somehow related to the concentration of the species.an ideal analytical method is one in which the concentration of a species can be measured to a high degree precision and accuracy and with a high sensitivity. unfortunately finding such a method is very difficult or sometimes even impossible.in...
abstract the present study is attempted to present the minimum required meteorological parameters for reference evapotranspiration estimation at hamedan region of iran from 1997 to 1998. employing pierson test, six meteorological parameters which are used by penman-montieth fao-56 method including maximum and minimum air temperature, maximum and minimum relative humidity, wind speed and daily s...
materials and methods sixty mothers of children with adhd who referred to psychiatric outpatient clinic of ahvaz golestan hospital were selected by convenience sampling method. the parenting attitude, general health, and demographic data questionnaires were used. results forty two (70%) mothers were healthy and 18 (30%) were unhealthy. the pierson coefficient and the fisher’s exact test showed ...
the purpose of this research was to explaining the relationship of oi and oa with organizational entrepreneurship in ministry of sports and youth of iran. the research methodology was descriptive-correlation and the population includes all of the experts at six deputies in ministry of sport and youth in 2013 comprising of 340 people. 180 of the population were selected through stratified random...
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