نتایج جستجو برای: geometric morphometric

تعداد نتایج: 106641  

2014
Liying Zheng Christopher D. Harner Xudong Zhang

This study characterized the soft tissue insertion morphometrics on the tibial plateau and their inter-relationships as well as variabilities. The outlines of the cruciate ligament and meniscal root insertions along with the medial and lateral cartilage on 20 cadaveric tibias (10 left and 10 right knees) were digitized and co-registered with corresponding CT-based 3D bone models. Generalized Pr...

Journal: :Molecular phylogenetics and evolution 2007
Islam Gündüz Maarit Jaarola Coskun Tez Can Yeniyurt P David Polly Jeremy B Searle

This study reports on the molecular phylogenetics of ground squirrels, genus Spermophilus, in Turkey using cytochrome b (1140bp), part of the D-loop and flanking tRNAs (572bp), X chromosome (867-1051bp) and Y chromosome (983-989bp) DNA sequences. Individuals also were characterized by karyotype and with geometric morphometric analyses of mandibles and skulls. Two hundred fourteen individuals fr...

Journal: :Genome 2016
Silvia Britto Barreto Lorena Andrade Nunes André Teixeira da Silva Ricardo Jucá-Chagas Débora Diniz Iracilda Sampaio Horacio Schneider Paulo Roberto Antunes de Mello Affonso

The combination of DNA barcodes and geometric morphometrics is useful to discriminate taxonomically controversial species, providing more precise estimates of biodiversity. Therefore, our goal was to assess the genetic and morphometric diversity in Nematocharax, a controversial monotypic and sexually dimorphic genus of Neotropical fish, based on sequencing of cytochrome c oxidase subunit I (COI...

2013
S. K. Alam E. J. Feleppa Mark Rondeau A. Kalisz B. S. Garra

We have developed a family of quantitative descriptors in order to provide noninvasive, reliable means of distinguishing benign from malignant breast lesions. These include acoustic descriptors (“echogenicity,” “heterogeneity,” “shadowing”) and morphometric descriptors (“area,” “aspect ratio,” “border irregularity,” “margin definition”). These quantitative descriptors are designed to be indepen...

2012
S. K. Alam E. J. Feleppa Mark Rondeau A. Kalisz B. S. Garra

We have developed a family of quantitative descriptors in order to provide noninvasive, reliable means of distinguishing benign from malignant breast lesions. These include acoustic descriptors (“echogenicity,” “heterogeneity,” “shadowing”) and morphometric descriptors (“area,” “aspect ratio,” “border irregularity,” “margin definition”). These quantitative descriptors are designed to be indepen...

طباطبایی, سیده نرجس, عبدلی, اصغر, منصوری خواجه لنگی, عقیل, هاشم زاده سقرلو, ایرج,

Garra rufa is one of the 73 Garra species of the family Cyprinidae. Scales are used more commonly than any other structure in population dynamic studies, because of their transparency, ease of sampling, and the minimal in-juries caused to the fish during their removal. To discriminate fish from different rivers including Bashar, Behbahan, Gerdab, Kheirabad, Kooshk-e-Bahram, Mazoo, Palangan, Sen...

2012
James W. Head Gregory A. Neumann David E. Smith Maria T. Zuber David M. H. Baker

Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. [1] The morphologic transition from complex impact craters, to peak-ring basins, and to multi-ring basins has been ...

2011
Stephan Koblmüller R. Craig Albertson Martin J. Genner Kristina M. Sefc Tetsumi Takahashi

With an estimated 3000 species, distributed from Central and South America, across Africa to Madagascar, the Middle East, and southern India, cichlid fishes (Cichlidae) represent the most species-rich family of vertebrates. In total they account for about 10% of extant teleost diversity. Throughout their distributional range, cichlids have repeatedly demonstrated their capacity for undergoing a...

Journal: :Zootaxa 2014
Rodrigo Espíndola Godoy Eunice Aparecida Bianchi Galati Pedro Cordeiro-Estrela Nataly Araújo De Souza Thiago Vasconcelos Dos Santos Lindemberg Caranha De Sousa Elizabeth Ferreira Rangel

Phlebotominae, a group of insects with great medical importance especially in Brazil, are responsible for transmitting causal agents of cutaneous and visceral leishmaniasis. In Brazil, the most important species of Leishmania Ross, 1903 are L. (Viannia) braziliensis Vianna, 1911, whose main vectors are Nyssomyia intermedia Lutz & Neiva, 1912, Ny. neivai Pin-to, 1926, Ny. whitmani Antunes & Cout...

Journal: :Systematic biology 1998
F J Rohlf

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...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید