Results 81 to 90 of about 77,522 (311)

Comparative analysis of cephalofacial dimorphism among indigenous ethnic groups in Benue State, Nigeria

open access: yesJournal of Forensic Science and Medicine, 2020
The face is an important physiognomic feature in humans, and facial anthropometric variables are valuable biometric physiognomies that vary with age, sex, and ethnicity.
Joseph Igbo Enya, Onenson Nkanu Onen
doaj   +1 more source

Broadening the semiaquatic scene: Quantification of long bone microanatomy across pinnipeds

open access: yesThe Anatomical Record, EarlyView.
Abstract Investigations of bone microanatomy are commonly used to explore lifestyle strategies in vertebrates. While distinct microanatomical limb bone features have been established for exclusively aquatic and terrestrial lifestyles, identifying clear patterns for the semiaquatic lifestyle remains more challenging.
Apolline Alfsen   +10 more
wiley   +1 more source

A new form of NaMnAsO4

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2019
A new form of NaMnAsO4, sodium manganese(II) orthoarsenate, has been obtained under hydrothermal conditions, and is referred to as the β-polymorph. In contrast to the previously reported orthorhombic α-polymorph that crystallizes in the olivine-type of ...
Matthias Weil, Théo Veyer
doaj   +1 more source

POLLEN DIMORPHISM IN THE RUBIACEAE [PDF]

open access: yesEvolution, 1956
The striking dimorphism of pollen and stigmata fonnd in the majority of the species of the tribe Staticeae in the Plumbaginaceae was discovered by McCleod (1887). This dimorphism and derived monomorphic conditions have been extensively investigated with results that have been found extremely helpful in the elucidation of genetical, genecological ...
openaire   +1 more source

Nutritional aspects of sexual dimorphism in the American mink mustela vison (schreber) [PDF]

open access: yes, 1987
Nutritional aspects of size-related sex differences in the diets of free-living mink were investigated in laboratory-based feeding trials with adult farm-bred mink maintained on 'natural' diets.
Gregory, Jonathan
core  

Statistical shape modeling of the human inner ear through micro‐computed tomography imaging

open access: yesThe Anatomical Record, EarlyView.
In this study, 54 cadaveric temporal bone specimens underwent high‐resolution micro‐CT imaging. Images were semi‐automatically segmented and converted to 3D surface mesh models for morphological measurement and analysis. Statistical shape models were created for the inner ear, cochlea, and vestibular system, as well as for sex‐ and side‐based subgroups.
Carmine Spedaliere   +8 more
wiley   +1 more source

Ontogeny of murine bony semicircular canal form

open access: yesThe Anatomical Record, EarlyView.
Abstract The labyrinthine geometry and functional anatomy of the semicircular canals have intrigued scientists for decades, and there has been considerable interest in understanding how these complex structures grow and develop with evidence emerging from human studies that size maturation occurs exceptionally early by comparison with other systems ...
Marcela Cárdenas‐Serna   +1 more
wiley   +1 more source

A detailed redescription of a skeletally immature ‘Redondasaurus’ suggests ontogenetic transformations in the taxon mirror phytosaurian morphological evolution

open access: yesThe Anatomical Record, EarlyView.
Abstract The study of morphological evolution is fundamentally tied to ontogeny, yet studies of these heterochronic processes in the fossil record are rare. Fossils belonging to an ontogenetic series are difficult to assign to an ontogenetic stage due to inconsistent proxies for skeletal ages, challenging to taxonomically assign due to morphological ...
Erika R. Goldsmith, Michelle R. Stocker
wiley   +1 more source

The influence of sexual dimorphism on the manifestation of coordination abilities of volleyball players aged 15-17

open access: yesPedagogy of Physical Culture and Sports
Background and Study Aim. Sexual dimorphism plays a crucial role in the design of training programs for athletes. Therefore, understanding the influence of sexual dimorphism on various abilities is essential for optimizing training regimens.
Roman Boichuk   +8 more
doaj   +1 more source

3D anatomical atlas of the heads of male and female adult Chamaeleo calyptratus

open access: yesThe Anatomical Record, EarlyView.
The veiled chameleon is a model organism in reptile development research. Utilizing contrast‐enhanced microCT and deep learning segmentation models, we have generated the first digital atlases of the skull, nervous system, cranial muscles and hyolingual muscles.
Alice Leavey   +3 more
wiley   +1 more source

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