Results 11 to 20 of about 1,915,047 (283)
Measuring 3D shape in orthodontics through geometric morphometrics [PDF]
Progress in Orthodontics, 2017 Background Geometric morphometrics (GMM) has been traditionally applied to the field of biology to study developmental differentiations between species. Orthodontics deals with the shape and size of the face and its components.
Luis Huanca Ghislanzoni +3 more
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Sexual dimorphism in the shell of a nassariid gastropod. A 3D geometric morphometrics approach [PDF]
Journal of the Marine Biological Association of the United Kingdom, 2016 Among gastropods, dimorphism is reported in shell size, radular characteristic, and to a lesser extent in shell shape. The relationship of dimorphic characters of the shell with spawning is scarcely studied in literature. Buccinanops globulosus is an interesting model to study sexual dimorphism in shell shape, because the adults attach their egg ...
Marquez, Federico, Averbuj, Andres
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Quantifying Ship Shape in Archaeology: Evaluating 3D Geometric Morphometrics
International Journal of Nautical Archaeology, 2020 The analysis of the archaeological remains of ships and boats, in particular hull shapes, have been central to wider analysis of performance, function, and significance within past societies. This article reviews established methods of quantifying shape in ship and boat archaeology—linear measurement ratios and form coefficients—and evaluates the ...
Thomas Dhoop +3 more
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Determining the Anatomical Position of the Thoracic Vertebrae with 3D Geometric Morphometrics
Forensic SciencesBackground/Objectives: A common challenge in both forensic and bioarchaeological research is commingling, the intermixing of skeletal material originating from multiple individuals or contexts.
Myrsini Voulgari +2 more
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3D Geometric morphometrics to investigate Cercopithecini evolution [PDF]
, 2014 3D Geometric Morphometrics has been used on a preliminary dataset of 163 crania and 148 mandibles of primates. We sampled 27 species from Cercopithecidae and Hominidae, collected in 7 different museums. Our sampling campaign was carried on with the use of a 3D-digitizer Microscribe G2X and the data were processed through the software Morphologika.
LO BIANCO, Stefania, SINEO, Luca
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Contribution of 2D and 3D geometric morphometrics to the study of cephalopod fossil beaks
, 2022 Though quite rare, fossil coleoid beaks have been documented in the fossil record dating back to the Carboniferous, a few million years after the estimated divergence between coleoids and nautiloids. Most are fragmentary and preserved as two-dimensional carbon imprints, but there are a small number of remarkably well-preserved 3D fossils whose ...
Rouget, Isabelle +4 more
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3D geometric morphometric analysis of variation in the human lumbar spine [PDF]
American Journal of Physical Anthropology, 2019 AbstractObjectivesThe shape of the human lumbar spine is considered to be a consequence of erect posture. In addition, several other factors such as sexual dimorphism and variation in genetic backgrounds also influence lumbar vertebral morphology. Here we use 3D geometric morphometrics (GM) to analyze the 3D morphology of the lumbar spine in different ...
Stephanie Lois Zlolniski +9 more
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A 3D geometric morphometric dataset quantifying skeletal variation in birds [PDF]
MorphoMuseuM, 2021 Macroevolution is integral to understanding the patterns of the diversification of life. As the life sciences increasingly use big data approaches, large multivariate datasets are required to test fundamental macroevolutionary hypotheses. In vertebrate evolution, large datasets have been created to quantify morphological variation, largely focusing on ...
Alexander Bjarnason, Roger Benson
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Functional morphology and integration of corvid skulls - a 3D geometric morphometric approach [PDF]
Frontiers in Zoology, 2009 Sympatric corvid species have evolved differences in nesting, habitat choice, diet and foraging. Differences in the frequency with which corvid species use their repertoire of feeding techniques is expected to covary with bill-shape and with the frontal binocular field.
Kulemeyer, C. +4 more
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Genetic analysis of geometric morphometric 3D visuals of French jumping horses
Genetics Selection Evolution, 2023 Abstract Background For centuries, morphology has been the most commonly selected trait in horses. A 3D video recording enabled us to obtain the coordinates of 43 anatomical landmarks of 2089 jumping horses. Generalized Procrustes analysis provided centered and scaled coordinates that were independent of volume, i.e ...
Ricard, Anne +6 more
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