Results 81 to 90 of about 25,502,428 (271)

Previously undocumented regional variability in crab‐eating macaque skull sexual dimorphism and its implications for biological and morphometric studies

open access: yesThe Anatomical Record, EarlyView.
Abstract In a large sample of adult crab‐eating macaques, we quantified sexual dimorphism in size, shape, and covariance across the whole skull and among anatomical regions of the cranium and mandible. All regions showed significant mean sex differences, but the magnitude of size and shape dimorphism varied substantially.
Andrea Cardini, Paul O'Higgins
wiley   +1 more source

Functional 2D Procrustes Shape Analysis [PDF]

open access: yes, 2005
Using a landmark based approach to Procrustes alignment neglects the functional nature of outlines and surfaces. In order to re-introduce this functional nature into the analysis we will consider alignment of shapes with functional representations. First functional Procrustes analysis of curve shapes is treated.
openaire   +1 more source

Oblique Procrustes Rotations in Factor Analysis [PDF]

open access: yesSIAM Journal on Scientific and Statistical Computing, 1984
An iterative procedure is presented for the so-called Procrustes problem in the case when only some of the weights are one and the rest are zero. Instead of the Newton method, the paper uses the Lagrange multipliers.
openaire   +2 more sources

Covariance Weighted Procrustes Analysis [PDF]

open access: yes, 2016
We revisit the popular Procrustes matching procedure of landmark shape analysis and consider the situation where the landmark coordinates have a completely general covariance matrix, extending previous approaches based on factored covariance structures.
Brignell, CJ, Browne, WJ, Dryden, IL
openaire   +1 more source

Tracing the evolutionary history of the morpho‐anatomy of baculum in primates

open access: yesThe Anatomical Record, EarlyView.
Abstract Animal morphology reflects both evolutionary history and present‐day adaptation. Male mammal copulatory structures such as the baculum (penile bone) are ideal for studying these processes because of their complexity and high interspecific variability. In primates, however, research has focused mostly on baculum length.
Federica Spani   +3 more
wiley   +1 more source

Quantifying Atomic Structural Disorder Using Procrustes Shape Analysis [PDF]

open access: green, 2023
Jinchen Han   +2 more
openalex   +1 more source

Arbuscular mycorrhizal fungal community abundance, functions, and symbiotic interactions revealed by root metatranscriptomes

open access: yesiMetaOmics, EarlyView.
Paradigm shift: PCR‐free methods reveal 6–15‐fold higher arbuscular mycorrhizal (AM) fungal abundance than metabarcoding, exposing systematic underestimation across decades of research. Predictive power: AM fungal abundance serves as a community‐level trait that predicts crop yield under drought conditions.
Peilin Chen, John W. Taylor, Cheng Gao
wiley   +1 more source

Errors-in-Variables Anisotropic Extended Orthogonal Procrustes Analysis

open access: yesIEEE Geoscience and Remote Sensing Letters, 2017
This letter presents a novel total least squares (TLS) solution of the anisotropic row-scaling Procrustes problem. The ordinary LS Procrustes approach finds the transformation parameters between origin and destination sets of observations minimizing ...
E. Maset, F. Crosilla, Andrea Fusiello
semanticscholar   +1 more source

Metagenomic mining of environmental resistomes: Comparative performance of deep learning and alignment‐based annotation methods

open access: yesiMetaOmics, EarlyView.
Antimicrobial resistance (AMR) in marine environments poses intricate challenges due to the ecological complexity of microbial communities and environmental gradients. This study compares various antimicrobial resistance gene (ARG) annotation tools and databases, focusing on deep learning approaches versus traditional alignment‐based methods, to ...
Joeselle M. Serrana   +2 more
wiley   +1 more source

Continuous Generalized Procrustes analysis

open access: yesPattern Recognition, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Laura Igual   +4 more
openaire   +1 more source

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