Results 71 to 80 of about 563,795 (223)

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

محیط 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, Hadi Poorbagher, Soheil Eagderi   +2 more
doaj   +1 more source

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

Animals, 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, Cesare Pacioni, Federico Maria Tardella, Cecilia Dall’Aglio, Antonio Palladino, Paola Scocco   +5 more
doaj   +1 more source

Tissue Clearing for Lymph Nodes: 3D Mapping of Nerves and the Immune Microenvironment

iNew Medicine, EarlyView.
ABSTRACT Lymph nodes (LNs) are central hubs of adaptive immunity and key relay sites for metastatic tumour cells. However, conventional two‐dimensional histology samples only a small fraction of each node, potentially missing micrometastases and multifocal involvement while obscuring long‐range spatial relationships among tumour deposits, immune ...
Guang‐Hong Su, Fei Wang, Ting‐Hong Wei, Rui Lu, Wen‐Jun Huang, Xiang Zhang, Ling Yin, Jun Li   +7 more
wiley   +1 more source

Evidence of incipient speciation in Astyanax scabripinnis species complex (Teleostei: Characidae)

Neotropical Ichthyology
Two populations of the Astyanax scabripinniscomplex, isolated by a waterfall with over 100 meters depth and inhabiting different altitudes of the same river (1850 m a.s.l. and 662 m a.s.l.) were compared in reproductive data, geometric morphometry, tooth
Jonathan P. Castro, Maurício O. Moura, Orlando Moreira-Filho, Oscar A. Shibatta, Mateus H. Santos, Viviane Nogaroto, Marcelo R. Vicari, Mara C. de Almeida, Roberto F. Artoni   +8 more
doaj   +1 more source

Predictability of Craniofacial Skeletal Age with Geometric Morphometrics

The Journal of Contemporary Dental Practice, 2018
This study aims to estimate skeletal age of craniofacial shape obtained from cone beam computed tomography (CBCT)-defined facial and basicranial landmarks using geometric morphometrics method in a random sample of growing patients, and explore the correlation between craniofacial shape and skeletal age as determined from hand and wrist radiograph ...
Antoine, Saadé, Pascal, Baron, Ziad Ef, Noujeim, Elie, Arouk, Dany, Azar   +4 more
openaire   +2 more sources

Dynamics of Size and Shape Variation During Embryonic Development in the Balkan Crested Newt

Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
Morphological variance in Triturus ivanbureschi embryos fluctuates during the tailbud phase, coinciding with developmental arrest caused by the balanced lethal system. Prehatching embryos show uniform variance. Our study reveals dynamics of morphological variability during early development and provides a baseline for further studies.
Marko Bugarčić, Ana Ivanović, Milena Cvijanović, Maja Ajduković, Marija Drobnjaković, Ben Wielstra, Tijana Vučić   +6 more
wiley   +1 more source

Geometric morphometry and floating asymmetry - Database

Work database: "Sublethal effect of Beauveria bassiana, Metarhizium anisopliae and deltamethrin on wing morphometry and fluctuating asymmetry of Aedes aegypti".
Alves Santos, Fernanda Stefhany
core   +1 more source

Shape theory and mathematical design of a general geometric kernel through regular stratified objects [PDF]

, 2000
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.This dissertation focuses on the mathematical design of a unified shape kernel for geometric computing, with possible applications to computer aided design (
Gomes, Abel Joao Padrao
core   +6 more sources

Differentially expressed morphological characters depend on sex and ontogenetic stage in the crab Goniopsis cruentata (Crustacea: Grapsidae)

Scientia Marina
The hypothesis of this study was that significant variations in the growth rates of Goniopsis cruentata are related to intersexual and age-related characteristics, particularly in areas identified as secondary sexual (pleon, carapace and chelipeds ...
Lucas Nunes da Silva, Mauro de Melo Junior, Renata Akemi Shinozaki-Mendes   +2 more
doaj   +1 more source

Periglacial Puzzles: Unravelling Environmental Controls on Alpine Solifluction Lobe Dimensions and Shape

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT Freeze–thaw processes cause periglacial creep (otherwise known as solifluction) which forms solifluction lobes. These are lobate features characterized by a steep riser (front) and a smooth tread (body). Despite the widespread occurrence of these lobes, the controls on their morphometry remain poorly understood. Research into solifluction lobe
Jil S. van Etten, Jana Eichel, Daniel Draebing   +2 more
wiley   +1 more source