Results 251 to 260 of about 20,976 (294)

Geometric Morphometrics Applied to Cartography

Revue Internationale de Géomatique, 2023
The morphological differences between two geographical maps can be highlighted by a polycentric distance cartogram resulting from a bidimensional regression. Beyond the communicational interest of the transformations thus produced, the method makes it possible to reveal the differences in structure and therefore constitutes a real research tool ...
openaire   +1 more source

Geometric morphometrics simplified

Trends in Ecology & Evolution, 2005
Although the theory and methods of the relatively new field of geometric morphometrics are becoming well developed (for an overview, see [1]), it has not yet been applied as widely as it could be, owing to the lack of easily accessible introductory guides. This primer, by Miriam Zelditch and colleagues, should make the field more accessible because the
openaire   +1 more source

Morphometric geometrics of Aegla quilombola

2022
Morphometrics geometrics of Aegla quilombola sampled on southeastern Brazil. Images of carapace and chelae.
openaire   +1 more source

A Geometric Morphometric Study on the Rat Mandible

Anatomia, Histologia, Embryologia
ABSTRACTThe aim of the study was to investigate the shape of the mandible in Wistar albino rats using the geometric morphometric method. However, ‘Is the shape of the mandible different in rats depending on gender?’ the question formed the hypothesis of the study.
İftar Gürbüz, Yasin Demiraslan
openaire   +3 more sources

Morphometric and Geometric Anatomy of the Caucasian Orbital Floor

Orbit, 2011
To describe the morphometric and geometric relationships of the orbital floor in a Caucasian population.Exenterations of 47 orbits from 24 formalin fixed cadavers were performed. Morphometric measurements were taken between anatomical landmarks located along the orbital floor and the orbital apex.
Saif F, Abed, Pari N, Shams, Sunny, Shen, Philip J, Adds, Jimmy M, Uddin   +4 more
openaire   +2 more sources

Geometric morphometrics of clypeasteroids

2014
The complex skeleton of echinoids shows a close relationship between structure and function that makes this clade a textbook example for the analysis of functional morphology. Clypeasteroids (“sand dollars”) are a group of irregular echinoids with flat body shape, which live as detritus feeders on marine softground.
openaire   +1 more source

The shape of human evolution: A geometric morphometrics perspective

Evolutionary Anthropology: Issues, News, and Reviews, 2012
AbstractStudy of morphological form is fundamental to the discipline of paleoanthropology. The size and shape of our ancestors' anatomical features have long been the focus of research on hominin systematics, phylogeny, functional morphology, ontogeny, variation, and evolutionary change.
Karen L, Baab, Kieran P, McNulty, F James, Rohlf   +2 more
openaire   +2 more sources

Geometric morphometric analysis of mandibular ramus flexure

American Journal of Physical Anthropology, 2005
AbstractMany characteristics of the human skeleton can only be assessed morphologically, which may be problematic due to factors such as interobserver error and difficulties with standardization. Flexure of the mandibular ramus is one of these traits, and various researchers found widely differing results using this morphological feature.
A C, Oettlé, E, Pretorius, M, Steyn
openaire   +2 more sources

Geometric Morphometrics and the Study of Development

2008
Even though developmental biology seeks to provide developmental explanations for morphological variation, the quantification of morphological variation has been regarded as peripheral to the mechanistic study of development. In this chapter, we argue that this is now changing because the rapidly advancing knowledge of development in post-genomic ...
Benedikt Hallgrímsson, Julia C. Boughner, Andrei Turinsky, Trish E. Parsons, Cairine Logan, Christoph W. Sensen   +5 more
openaire   +1 more source

A geometric morphometric assessment of the optic cup in glaucoma

Experimental Eye Research, 2010
The morphologic appearance of the optic disc is of interest in glaucoma. In contrast to descriptive classification systems that are currently used, a quantitative approach to the analysis of optic disc morphology is required. Our goal was to determine the optimal method for quantifying optic cup shape by comparing traditional (ovality, form-factor and ...
P. G. Sanfilippo, CARDINI, Andrea Luigi, I. A. Sigal, J. B. Ruddle, B. E. Chua, A. W. Hewitt, D. A. Mackey   +6 more
openaire   +2 more sources