Results 11 to 20 of about 563,795 (223)

Assessing the severity of diatom deformities using geometric morphometry [PDF]

open access: yesBotany Letters, 2018
Deformities in diatoms are increasingly used as an indicator of toxic stress in freshwaters. However, the percentage of deformities alone often fails at highlighting the magnitude of toxic exposure. An approach combining the assessment of deformities coupled with information on their severity could improve the sensitivity of this biomarker.
Angélique Cerisier   +3 more
openaire   +5 more sources

Morphological differentiation between seven Brazilian populations of Haemagogus capricornii and Hg. janthinomys (Diptera: Culicidae) using geometric morphometry of the wings [PDF]

open access: yesRevista da Sociedade Brasileira de Medicina Tropical, 2019
INTRODUCTION: Haemagogus capricornii and Hg. janthinomys females are considered morphologically indistinguishable. We analyzed morphometric variability between Brazilian populations of these species using wing geometric morphometry.
Shayenne Olsson Freitas Silva   +3 more
doaj   +2 more sources

Rabbit Skull Shape: Three‐Dimensional Geometric Morphometric Analysis [PDF]

open access: yesVeterinary Medicine and Science
The objective of the present study was to analyse the three‐dimensional shape of the cranium models of New Zealand rabbits and to determine the effects of sex on shape. To this end, a total of 12 rabbit craniums were used (six female and six male). After
İsmail Demircioğlu   +2 more
doaj   +2 more sources

Geometric continuous patch complexes [PDF]

open access: yes, 1987
A theory of geometric continuity of arbitrary order is presented. Conditions of geometric continuity at a vertex where a number of patches meet are investigated.
Hahn, JM
core   +6 more sources

Shape Analysis as an Additional Tool in Roe Deer (Capreolus capreolus) Management: A New Approach Based on the Relationship between Mandible Shape and Trophic Resources

open access: yesAnimals, 2021
The analysis of body shape variability has always been a central element in biology. More recently, geometric morphometry has developed as a new field in shape analysis, with the aim to study body morphological variations and the identification of their ...
Cesare Pacioni   +5 more
doaj   +1 more source

Sexual dimorphism in Kinosternon scorpioides (Linnaeus, 1766) from the Brazilian Amazon

open access: yesBrazilian Journal of Biology, 2022
The sexual dimorphism of the Kinosternon scorpioides was evaluated using two different techniques (linear and geometric morphometry) from images and linear measurements of the carapace and plastron of adults (male and female).
E. P. Chaves   +7 more
doaj   +1 more source

Contributions to the Knowledge of Sexual Dimorphism in Liolaemus darwinii (Squamata, Liolaemidae) in the Monte Desert of Argentina

open access: yesZoodiversity, 2021
The lizard Liolaemus darwinii (Liolaemidae) is a typical species with wide distribution in Monte environments of Argentina. The objective of this study is contribute to knowledge of sexual dimorphism in L. darwinii.
G. Castillo   +2 more
doaj   +1 more source

Three-dimensional morphology of first molars in relation to ethnicity and the occurrence of cleft lip and palate. [PDF]

open access: yesPLoS ONE, 2017
This study aims to describe morphological peculiarities of maxillary and mandibular first molars in Europeans, Asians and Europeans with cleft lip and palate.Reflex microscopy was used to obtain three-dimensional morphometric landmarks from 40 models (11
Sandra Echtermeyer   +4 more
doaj   +1 more source

Correlation of Nuclear Morphometry with Clinicopathologic Parameters in Malignant Breast Aspirates

open access: yesSouth Asian Journal of Cancer, 2021
Objectives The primary objective of this study was to correlate nuclear morphometric parameters with clinicopathologic features such as cytologic grade, tumor size, lymph node status, mitotic index, and histopathologic grade.
Shivani Kalhan   +5 more
doaj   +1 more source

Diversity and Geographical Distribution of Sand Flies Phlebotomus papatasi (Diptera: Phlebotominae) by using Geometric Morphometric Technique from two Iraqi Provinces

open access: yesمجلة بغداد للعلوم, 2020
The variation in wing morphological features was investigated using geometric morphometric technique of the Sand Fly from two Iraqi provinces Babylon and Diyala . We distributed eleven landmarks on the wings of Sand Fly species.
Sahar Abd Abd   +3 more
doaj   +1 more source

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