نتایج جستجو برای: variability
تعداد نتایج: 172358 فیلتر نتایج به سال:
abstract soil invertebrate and their spatial pattern are affected strongly by environmental factors. spatial variability of soil properties is one of the most important reasons of the macrofauna variability. this study was conducted to investigate the spatial variability of soil properties and soil macrofauna biomass in the riparian forest landscape of karkhe river. soil macro fauna were sample...
immunosuppressants require therapeutic drug monitoring because of their narrow therapeutic index and significant inter-individual variability in blood concentrations. this variability can be because of factors like drug-nutrient interactions, drug-disease interactions, renal-insufficiency, inflammation and infection, gender, age, polymorphism and liver mass. drug monitoring is widely practiced ...
The experiment was conducted using Randomized Complete Block Design with Row Column arrangement and three replications. Grain yield, phenological and other traits were recorded. The Residual Maximum Likelihood (REML) combined analysis of variance across locations showed very highly significant (P
iron is an essential nutrients in rice. accurate assessment of this element in paddy soils is very important. improving fertility management, accurate interpolation, being aware of spatial variability and patterns of distribution of micronutrients are the most important factors in soil management and accurate consumption of fertilizers. this study was done for investigating of available iron, d...
background: standardization of the semen analysis may improve reproducibility. we assessed variability between laboratories in semen analyses and evaluated whether a transformation using z scores and regression statistics was able to reduce this variability. materials and methods: we performed a retrospective cohort study. we calculated between-laboratory coefficients of variation (cvb) for spe...
the purpose of present paper was to examine the relationship between central bank independence and inflation rate in iran over 1960-2008. first, central bank independence has been accomplished through three indices including legal and real cbi indices and turnover rate of central bank governor index. then, augmented dickey-fuller test for model stationary of variables has been done by applying ...
Ranunculus L. with about 600 species is the largest genus in the Ranunculaceae. Problems in the taxonomy of the genus are due to high variability and polymorphism among different individuals and populations of certain species. Morphological characters of nectar scale have been considered as valuable taxonomical characters in some perennial species in some groups (Praemorsa, Grumosa, Rhizomatosa...
In order to determine genetic variability among 33 isolates of Fusarium semitectum, morpho- logical and molecular studies were carried out. Isolates from different paddy fields in the north of Iran were separated from each other in four morphotype groups. The isolates showed a high level of variation in aerial mycelium, color of colony, number of septa and growth rate on potato dextrose agar (P...
Understanding distribution of soil properties at the field scale is important for improving agricultural management practices and for assessing the effects of agriculture on environmental quality. Spatial variability within soil occurs naturally due to pedogenic factors as well as land use and management strategies. The variability of soil properties within fields is often described by classica...
Background: The purpose of this study was to compare electronic fetal heart rate monitoring (EFM) characteristics between Appropriate for Gestational Age (AGA ) and Small for Gestational Age (SGA) fetuses and to determine whether SGA fetuses have specific abnormalities. Materials and Methods: Among children born from Apr 2002 to Mar 2003 in Arash hospital, we identified 300 singleton infants b...
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