نتایج جستجو برای: morphometric

تعداد نتایج: 18764  

Journal: :Neuron 2018
Jakob Seidlitz František Váša Maxwell Shinn Rafael Romero-Garcia Kirstie J Whitaker Petra E Vértes Konrad Wagstyl Paul Kirkpatrick Reardon Liv Clasen Siyuan Liu Adam Messinger David A Leopold Peter Fonagy Raymond J Dolan Peter B Jones Ian M Goodyer Armin Raznahan Edward T Bullmore

Macroscopic cortical networks are important for cognitive function, but it remains challenging to construct anatomically plausible individual structural connectomes from human neuroimaging. We introduce a new technique for cortical network mapping based on inter-regional similarity of multiple morphometric parameters measured using multimodal MRI. In three cohorts (two human, one macaque), we f...

2010
Richard E. Strauss R. E. Strauss

A common problem in morphometric studies is to determine whether, and in what ways, two or more previously established groups of organisms differ. Discrimination of predefined groups is a very different problem than trying to characterize the patterns of morphological variation among individuals, and so the kinds of morphometric tools used for these two kinds of questions differ. In this paper ...

Journal: :Computers & Geosciences 2015
Carlos Henrique Grohmann

When performing a regional-scale geomorphometric analysis, one might face a decision on whether to derive morphometric data from a low-resolution DEM or to calculate basic derivatives from a higher resolution dataset and average these data afterwards. This paper investigates differences between morphometric parameters (slope and aspect) derived from a resampled DEM and resampled morphometric da...

Journal: :علمی شیلات ایران 0
شفق کمال s kamal مجید بختیاری m bakhtiyari محمود کرمی m karami اصغر عبدلی a abdoli سهیل ایگدری s eagderi

killifish (aphanius sophiae) of the cheshme-ali of damghan and shour river of eshteherd were studied and compared from morphological point of view. for morphometric studies, 34 truss morphometric measurements and  10 traditional  measurements  were made for each individual. nine meristic traits were counted. multi-variate analysis of variance (manova) revealed a significant different between va...

2016
Fernando Vásquez Carles Soler Patricia Camps Anthony Valverde Almudena García-Molina

This work evaluates sperm head morphometric characteristics in adolescents from 12 to 18 years of age, and the effect of varicocele. Volunteers between 150 and 224 months of age (mean 191, n = 87), who had reached oigarche by 12 years old, were recruited in the area of Barranquilla, Colombia. Morphometric analysis of sperm heads was performed with principal component (PC) and discriminant analy...

Journal: :زیست شناسی دریا 0
حکیمه فکراندیش hakimeh fekrandish ابوالقاسم کمالی abolghasem kamali سید جواد حسینی seyyeddjavad hosseini مهدی سلطانی mahdi soltani

this study was designed to evaluate population variation and differentiation of bartail flathead, platycephalusindicus (linnaeus, 1785)in the iranian waters of the persian gulf using the morphometric and meristic characters. a total of 180 fish were collected by gill net from six stations (khormosa, bahrekan, shif, motaf, charak and bandar abbas) of iranian coasts of persian gulf including 30 f...

. In this study, morphological variation of three species of Squalius in Iranian basins was studied. For this purpose, 709 specimens were captured from the Caspian Sea, the Urmia Lake, the Namak Lake and the Tigris basin. After anesthetizing in clove oil solution and fixing in 10% neutralized formalin, specimens were transferred to the Isfahan University of Technology Ichthyology Museum (IUT-IM...

Journal: :اکو هیدرولوژی 0
امید رحمتی دانشجوی دکتری علوم و مهندسی آبخیزداری، دانشگاه لرستان، خرم آباد ناصر طهماسبی پور استادیار دانشکدۀ کشاورزی، گروه مرتع و آبخیزداری، دانشگاه لرستان، خرم آباد حمیدرضا پورقاسمی استادیار دانشکدۀ کشاورزی، گروه مهندسی منابع طبیعی و محیط زیست، دانشگاه شیراز، شیراز

planning of watersheds is indispensable in terms of sustainable development and landscape management. therefore, watershed prioritization and morphometric characterization are important to identify hydrological behavior of the basin for conducting management strategies. in this study, geospatial-statistical approach was used for identifying critical and priority sub-watersheds in the golestan w...

Journal: :Brain : a journal of neurology 2011
Jan Wagner Bernd Weber Horst Urbach Christian E Elger Hans-Jürgen Huppertz

Focal cortical dysplasias type II (FCD II) are highly epileptogenic lesions frequently causing pharmacoresistant epilepsy. Detection of these lesions on MRI is still challenging as FCDs may be very subtle in appearance and might escape conventional visual analysis. Morphometric MRI analysis is a voxel-based post-processing method based on algorithms of the statistical parametric mapping softwar...

Journal: :GeoInformatica 2010
Amir Houshang Ehsani Friedrich Quiel Arash Malekian

In this study, we present a semi-automatic procedure using Neural Networks— Self Organizing Map—and Shuttle Radar Topography Mission DEMs to characterize morphometric features of the landscape in the Man and Biosphere Reserve “Eastern Carpathians”. We investigate specially the effect of two resolutions, SIR-C with 3 arc seconds and X-SAR with 1 arc second for morphometric feature identification...

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