Results 11 to 20 of about 1,289 (111)
Skeletal age during hurricane impacts fluctuating asymmetry in Cayo Santiago rhesus macaques
Ecology and Evolution, Volume 13, Issue 8, August 2023., 2023 Fluctuating asymmetry (FA), or random deviations from symmetry, can be used as a proxy for developmental instability, and anthropogenic and natural disruptions have been associated with increased levels of FA. In this study, we investigate the effect of demographic variables (age, sex, and decade of birth) and hurricane experience on FA in a model ...
Ashly N. Romero +3 more
wiley +1 more source
Constructing a multiple‐part morphospace using a multiblock method
Methods in Ecology and Evolution, Volume 14, Issue 1, Page 65-76, January 2023., 2023 Abstract Popular current methods for quantifying variation in biological shape are well‐suited to analyses of isolated parts (e.g. the same bone from the skeletons of many individuals). An analytical challenge exists for quantifying variation between the shapes of multiple‐part objects where each part has a different position, rotation or scale (e.g ...
Daniel B. Thomas +5 more
wiley +1 more source
Evolution, Volume 76, Issue 11, Page 2566-2586, November 2022., 2022 Abstract Turtles have a highly modified body plan, including a rigid shell that constrains postcranial anatomy. Skull morphology and neck mobility may therefore be key to ecological specialization in turtles. However, the ecological signal of turtle skull morphologies has not been rigorously evaluated, leaving uncertainties about the roles of ...
Guilherme Hermanson +5 more
wiley +1 more source
Web databases of feather photographs are useful tools for avian morphometry studies
Ecology and Evolution, Volume 11, Issue 12, Page 7677-7684, June 2021., 2021 Wing area and aspect ratio are key variables for studies of avian comparative ecology, despite the complexity of measuring them both in living and in museum specimens. The systematic databases of feather photographs available on the Internet may offer an alternative way of obtaining such morphometric data.
Juan E. Malo, Cristina Mata
wiley +1 more source
Revista de Odontopediatria Latinoamericana, 2021 Objetivo: Establecer un análisis morfométrico del frenillo labial superior durante el crecimiento y desarrollo del niño en edades de 0 a 12 años en el Municipio Naguanagua periodo Marzo-Septiembre 2016.
Osmary Darisay Cerrato López +2 more
doaj +1 more source
Acta Scientiarum: Animal Sciences, 2008 O trabalho objetivou avaliar o efeito do probiótico associado com diferentes níveis de proteína bruta (PB) sobre o comprimento e a morfometria da mucosa do intestino delgado de codornas de corte.
Luciana Kazue Otutumi +5 more
doaj +1 more source
Neuroimagem do TDAH: achados de ressonância magnética estrutural e funcional
Debates em Psiquiatria, 2014 Essa revisão descreve primeiramente o funcionamento das metodologias de ressonância magnética: morfometria baseada em voxels, morfometria baseada em superfície, imagem por tensor de difusão, ressonância magnética funcional com aplicação de tarefas ...
Felipe Almeida Picon
doaj +1 more source
Acta Scientiarum: Animal Sciences, 2009 O objetivo deste trabalho foi avaliar a relação entre a morfometria da cabeça do espermatozoide e a compactação da cromatina com as taxas de clivagem e formação de blastocisto em programas de produção de embriões in vitro (PIV).
Ricardo Tomaz da Silva +2 more
doaj +1 more source
Geofísica Internacional, 2004 La explosión demográfica, el desarrollo económico y el crecimiento de los grandes centros urbanos han tenido como consecuencia un incremento considerable de la producción de basura en el mundo.
J. T. Silva García +3 more
doaj +1 more source