Results 71 to 80 of about 16,825 (219)

Using geometric morphometrics and standard morphometry to discriminate three honeybee subspecies [PDF]

open access: yesApidologie, 2008
Honeybee (Apis mellifera) subspecies usually are distinguished by standard morphometry methods, based mainly on multivariate analysis of distances and angles. Recently another method of statistical analysis of shape, geometric morphometrics, has been developed. The new method is based on characteristic points described by Cartesian coordinates. The two
openaire   +1 more source

In Vivo Effect of a Synthetic Amniotic Fluid on Fetal Lung and Gastrointestinal Tract: A Pre‐Clinical Rodent Model

open access: yesPrenatal Diagnosis, EarlyView.
ABSTRACT Objective Amnioinfusions in anhydramnios aim to promote fetal lung development, but currently used fluids (Normal Saline [NS], Lactated Ringer's [LR]) fail to mimic the intrauterine environment and increase reactive oxygen species (ROS). We developed a synthetic amniotic fluid (Amnio‐well, AW) designed to reduce intrauterine ROS.
Braxton Forde   +3 more
wiley   +1 more source

The variety of shapes perianth leafl et of Colchicum laetum L., C. ancyrense B. L. Burtt and C. bulbocodium var. versicolor (Ker Gawl.) K. Perss [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Серия Химия. Биология. Экология
The objects of the study were C. laetum L., C. ancyrense B. L. Burtt and C. bulbocodium var. versicolor (Ker Gawl.) K. Pers. The variability of the shape of the bends of the sepals was studied by geometric morphometry.
Epifanov, Vladimir S.   +4 more
doaj   +1 more source

Morphological and Genetic Variability in Radix auricularia (Mollusca: Gastropoda: Lymnaeidae) of Lake Baikal, Siberia: The Story of an Unfinished Invasion into the Ancient Deepest Lake

open access: yesDiversity, 2022
This article aims to reconstruct the invasion of the ear-shaped pond snail, Radix auricularia (Linnaeus, 1758), to Lake Baikal, East Siberia. This species is widely distributed in the Palaearctic and Northern America, and since the early 20th century has
Katrin Schniebs   +5 more
doaj   +1 more source

Popliteus impingement after TKA may occur with well-sized prostheses [PDF]

open access: yes, 2016
To determine the mechanisms and extents of popliteus impingements before and after TKA and to investigate the influence of implant sizing. The hypotheses were that (1) popliteus impingements after TKA may occur at both the tibia and the femur, and (2 ...
Bonnin, Michel   +6 more
core   +1 more source

A Novel Method for Increasing the Numerousness of Biometrical Parameters Useful for Wildlife Management: Roe Deer Mandible as Bone Model

open access: yesAnimals, 2020
Study of dimensions (biometry) and shapes (geometric morphometry) of bone structures in ungulates is of extreme importance in wildlife population management.
Elena De Felice   +5 more
doaj   +1 more source

Effects of sex chromosome dosage on corpus callosum morphology in supernumerary sex chromosome aneuploidies. [PDF]

open access: yes, 2014
BackgroundSupernumerary sex chromosome aneuploidies (sSCA) are characterized by the presence of one or more additional sex chromosomes in an individual's karyotype; they affect around 1 in 400 individuals.
Blumenthal, Jonathan D   +6 more
core   +3 more sources

Spatial Structuring ofTriatoma infestans(Hemiptera, Reduviidae) Populations from Northwestern Argentina Using Wing Geometric Morphometry [PDF]

open access: yesJournal of Medical Entomology, 2004
Wing geometric morphometry was used to study the spatial structuring of populations of Triatoma infestans from different villages, ecotopes, and sites within a village in northwestern Argentina. A total of 308 male and 197 female wings of T. infestans collected from peridomestic and domestic ecotopes in March 2000 was analyzed.
Schachter-Broide, J.   +3 more
openaire   +3 more sources

Traditional and Geometric Morphometrics and Invariant Shape Descriptors of Catfish Otoliths in the Yucatán Peninsula: Tools for Species Identification and Individual Size Estimation at Maya Archaeological Sites

open access: yesArchaeometry, EarlyView.
ABSTRACT This study investigates the use of otolith shape analysis for species identification and size estimation in Ariopsis felis and Bagre marinus, based on 181 modern otoliths obtained from a scientific collection and recent sampling in the coastal regions of Campeche and Yucatán, as well as 39 archaeological otoliths corresponding to the Early ...
Ariana Solis‐Gómez   +7 more
wiley   +1 more source

Studying the Relationship Between Morphological Characteristics and Ecological Niche Overlap of the Namak Chub (Squalius namak) In the Jajroud River [PDF]

open access: yesمحیط زیست و توسعه فرابخشی
Introduction: The degree of overlap in ecological niches can indicate the extent of resource sharing and potential interspecific competition. The intensity or effects of resource sharing and competition may also be partially related to species abundance,
Hamed Shabanloo   +2 more
doaj   +1 more source

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