نتایج جستجو برای: morphometric variables
تعداد نتایج: 331628 فیلتر نتایج به سال:
U.S. cotton production is suffering from the yield loss caused by the reniform nematode (RN), Rotylenchulus reniformis. Management of this devastating pest is of utmost importance because, no upland cotton cultivar exhibits adequate resistance to RN. Nine populations of RN from distinct regions in Alabama and one population from Mississippi were studied and thirteen morphometric features were m...
The subject of allometry is variation in morphometric variables or other features of organisms associated with variation in size. Such variation can be produced by several biological phenomena, and three different levels of allometry are therefore distinguished: static allometry reflects individual variation within a population and age class, ontogenetic allometry is due to growth processes, an...
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16 Introduction 17 The relationship between participant motion, demographic variables and MRI-derived 18 morphometric estimates was investigated in autism spectrum disorder (ASD), attention 19 deficit hyperactivity disorder (ADHD) and schizophrenia. Participant motion was 20 estimated using resting state fMRI and used as a proxy measure for motion during T1w 21 MRI acquired in the same session....
Reservoirs are manmade habitats, intermediate between rivers and lakes, presenting distinct hydrological and morphometric characteristics, with differential mean water residence time. They also present proper vertical and horizontal organisations, and their evolution depends on several variables acting on different special and temporal scales. The water quality evolution of the Itaipu Reservoir...
In the autumn 2012, a study in order to evalute the accuracy of describe four species from Alburnoides was done using morphological characters. The samples from three speices including Alburnoidesnamaki, Alburnoidesidignensis and Alburnoidesnicolasi caught by electrofishing from type locality that reported by Bogutskaya and Coad, 2009 and also, the samples of Alburnoideseichwaldiiwas caught fro...
This study explored the relative roles of climate and phylogenetic background in driving morphometric trait variation in 10 spruce taxa in China. The study further addressed the hypothesis that these variations are consistent with species turnover on climatic gradients. Nine morphometric traits of leaves, seed cones, and seeds for the 10 studied spruce taxa were measured at 504 sites. These dat...
Purpose: Computerized histomorphometric analyses have been widely used as a diagnostic tool for the differential diagnosis of various tumors including breast carcinoma, well grading malignant and evaluation prognosis therapeutic response. The aim present study is to determine association between nuclear morphometric variables clinicopathologic prognostic parameters ER, PR, Cerb-B2 expressions i...
In press − − do not cite 2 The field of geometric morphometrics is relatively new (see Bookstein, 1991, Rohlf and Marcus, 1993) and has shown very rapid progress over the last few years. As might be expected during a period of rapid development, there can be technical problems in some of the pioneering studies as biologists attempt to apply the new tools. It is only now becoming clear how the n...
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