Results 61 to 70 of about 5,772 (210)

Astragalus ecomorphology in Quaternary elephantids

open access: yesJournal of Quaternary Science, EarlyView.
ABSTRACT The astragalus plays a fundamental role in the graviportal locomotion of proboscideans, reflecting the biomechanical constraints imposed by large body masses. This study analyses the morphological variability of the astragalus in Quaternary elephantids using linear biometry and 3D geometric morphometrics, incorporating an unpublished ...
Darío Fidalgo   +6 more
wiley   +1 more source

Densitometric parameters, trabecular bone morphometry and geometric parameters of the mandible of female, control and kynurenic acid-treated, Wistar rats.

open access: yes, 2019
Densitometric parameters, trabecular bone morphometry and geometric parameters of the mandible of female, control and kynurenic acid-treated, Wistar rats.
Piotr Dobrowolski (2333500)   +10 more
core   +1 more source

How an Ecological Race Is Forming: Morphological and Genetic Disparity among Thermal and Non-Thermal Populations of Aquatic Lymnaeid Snails (Gastropoda: Lymnaeidae)

open access: yesDiversity, 2023
Hot (geothermal) pools and streams, a specific type of aquatic biotopes having almost worldwide distribution, maintain rich faunas of animals belonging to various taxa.
Maxim V. Vinarski   +7 more
doaj   +1 more source

Sex identification of Carcinus maenas by analysis of carapace geometrical morphometry

open access: yesJournal of Sea Research, 2010
The European green crab Carcinus maenas is a widely spread invasive species. Studying the most recently introduced population of the species in the Atlantic coast off Patagonia, it became apparent to us that carapaces (the dorsal cover of the visceral-cavity detaching from the rest of the exoskeleton after ecdysis) accumulated on the intertidal may be ...
Federico M. Ledesma   +2 more
openaire   +1 more source

The Glacial Legacy of the Geneva Basin: Morphology and implications of an intricate tunnel valley system revealed from 3D seismic data

open access: yesJournal of Quaternary Science, EarlyView.
ABSTRACT Like other perialpine basins and glaciated margins, the Geneva Basin in SW Switzerland is characterised by buried tunnel valleys, which are elongated incisions widely attributed to subglacial meltwater erosion beneath continental ice sheets. However, an inclusive understanding of the geological control on the evolution of the glacial landscape
Ovie Emmanuel Eruteya   +2 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

Combining the Underwater Vision Profiler 6 with sediment traps to measure in situ velocity of marine particles

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Particles sinking from the surface to the deep ocean play a key role in the biological carbon pump, whose efficiency depends partly on sinking velocities. Over the last decade, in situ imaging has enabled critical advances in our understanding of particle dynamics in the ocean.
Manon Laget   +5 more
wiley   +1 more source

Early and Progressive Spinal Cord Atrophy in Spinocerebellar Ataxia Type 1

open access: yesMovement Disorders, EarlyView.
Abstract Background Spinocerebellar ataxia type 1 (SCA1) is a rare, autosomal dominant neurodegenerative disorder characterized by progressive cerebellar and brainstem degeneration. Previous studies have shown that spinal cord atrophy is also a key aspect of SCA1 neuropathology.
Colette J.M. Reniers   +11 more
wiley   +1 more source

The analysis of Norduz Sheep Mandible with DFA and PCA [PDF]

open access: yesArchives of Razi Institute
Norduz sheep are known as a variety of Akkaraman sheep bred in the Norduz region, which is located within the borders of the Gürpınar district of Van province.
Semine DALGA, SEDEF KOÇAK
doaj   +1 more source

Prospective Head Motion Correction in T1‐ and T2‐Weighted Long Echo Train Sequences Using Servo Navigation

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To integrate MR‐based servo navigation in MPRAGE and 3D‐TSE sequences and demonstrate its potential for prospective head motion correction in structural imaging. Methods Repeated modules of servo navigators were inserted before each preparation pulse of MPRAGE and 3D‐TSE sequences (before‐prep) for rapid convergence of motion parameter
Matthias Serger   +7 more
wiley   +1 more source

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