Results 91 to 100 of about 563,795 (223)

Age, growth and sexual dimorphism of the monkeyface prickleback (Cebidichthys violaceus)

open access: yesJournal of Fish Biology, EarlyView.
Abstract Accurate estimates of age, growth and maturation are fundamental to fisheries assessment, conservation and the development of emerging aquaculture species. However, life‐history parameters can vary within species and may be influenced by factors such as sexual dimorphism, which is often poorly quantified in non‐commercial or understudied ...
Kevin D. Hinterman   +3 more
wiley   +1 more source

The cochlear morphometry compendium: High‐resolution synchrotron measurements and normative reference values

open access: yesJournal of Anatomy, EarlyView.
In this study, 100 cadaveric temporal bones underwent synchrotron radiation phase‐contrast imaging. Images were segmented to produce 3D surface mesh models for morphological analysis. Measurements obtained for all cochleae included: standard gross dimensions, various cochlear lengths including basilar membrane length, detailed intracochlear scalar ...
Sumit K. Agrawal   +4 more
wiley   +1 more source

Investigating Variation among Arikara Crania Using Geometric Morphometry [PDF]

open access: yes, 2000
Geometric morphometry has seen minimal application in studies of biological variability among subpopulations of humans. However, as landmark coordinates are highly effective for capturing information regarding size and shape variation, the tools of ...
McKeown, Ashley H.
core  

Densitometric parameters, trabecular bone morphometry and geometric parameters of the mandible of female, control and kynurenic acid-treated, Wistar rats.

open access: yes, 2019
Densitometric parameters, trabecular bone morphometry and geometric parameters of the mandible of female, control and kynurenic acid-treated, Wistar rats.
Piotr Dobrowolski (2333500)   +10 more
core   +1 more source

Shape and Size Variations of Distal Phalanges in Cattle

open access: yesAnimals
Studies on the structure of the distal phalanx help explain the development of laminitis. Additionally, examining the structure of the distal phalanx from a taxonomic perspective also contributes to veterinary anatomy.
Nicoleta Manuta   +3 more
doaj   +1 more source

Heterodonty in the teeth of the turiasaurian sauropod from Angeac‐Charente (Early Cretaceous, southwestern France): Comparison of anatomical and geometric morphometric approaches

open access: yesJournal of Anatomy, EarlyView.
Turiasaurian teeth from Angeac‐Charente exhibit five dental morphotypes and reveal clear heterodonty and anteroposterior size gradient. Qualitative comparative anatomy quickly and efficiently identifies morphotypes, while 3D geometric morphometrics combined with machine learning refine ambiguous cases, demonstrating that qualitative and quantitative ...
Clémence Le Gouellec   +7 more
wiley   +1 more source

Densitometric parameters, trabecular bone morphometry and geometric parameters of the mandible of male, control and kynurenic acid-treated, Wistar rats.

open access: yes, 2019
Densitometric parameters, trabecular bone morphometry and geometric parameters of the mandible of male, control and kynurenic acid-treated, Wistar rats.
Piotr Dobrowolski (2333500)   +10 more
core   +1 more source

Genetic, phenotypic, and ecological differentiation indicate a new cryptic and threatened species in the orchid genus Epidendrum from Alcatrazes Island, southeastern Brazil

open access: yesJournal of Systematics and Evolution, EarlyView.
Epidendrum insularis occurs on the remote Alcatrazes Island in the southeastern Brazilian coast. The description of this new cryptic species was only possible by the joint use of molecular markers, reproductive experiments, flower morphometry, functional traits, and community analysis.
Beatriz L. Arida   +12 more
wiley   +1 more source

Geometrical Models for 2D Morphometry in Bioimages

open access: yes
From understanding how cell shape can be a biomarker in cancer diagnosis and prognosis to how change in cell shape dictates embryogenesis, morphology quantification is crucial in different areas of biology. Morphology-related measurements are extracted from segmented objects in bioimages, and their quality is therefore directly depend on the number of ...
openaire   +2 more sources

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