Intergrader agreement of foveal cone topography measured using adaptive optics scanning light ophthalmoscopy.

The foveal cone mosaic can be directly visualized using adaptive optics scanning light ophthalmoscopy (AOSLO). Previous studies in individuals with normal vision report wide variability in the topography of the foveal cone mosaic, especially the value of peak cone density (PCD). While these studies often involve a human grader, there have been no studies examining intergrader reproducibility of foveal cone mosaic metrics.

A therian mammal with sprawling kinematics? Gait and 3D forelimb X-ray motion analysis in tamanduas.

Therian mammals are known to move their forelimbs in a parasagittal plane, retracting the mobilised scapula during stance phase. Non-cursorial therian mammals often abduct the elbow out of the shoulder-hip parasagittal plane. This is especially prominent in Tamandua (Xenarthra), which suggests they employ aspects of sprawling (e.

Pure-Tone Hearing Thresholds and Brainstem Auditory Evoked Potentials in Sporadic Ataxia.

 Spinocerebellar ataxia (SCA) is part of a genetic and clinical heterogeneous group of neurodegenerative diseases characterized by progressive cerebellar ataxia.  To describe the results of audiological and electrophysiological hearing evaluations in patients with sporadic ataxia (SA).  A retrospective cross-sectional study was carried out with 11 patients submitted to the following procedures: anamnesis, otorhinolaryngological evaluation, tonal and vocal audiometry, acoustic immittance and brainstem auditory evoked potential (BAEP) tests.

The evolution of femoral cross-sectional properties in sciuromorph rodents: Influence of body mass and locomotor ecology.

In several groups of mammals, adaptation to differing functional demands is reflected in long bone cross-sectional properties (CSP), which relate to the resistance to compression and to bending loads in the craniocaudal and mediolateral directions. Members of the Sciuromorpha ("squirrel-like" rodents) display a diversity of locomotor ecologies and span three orders of magnitude in terms of body size. The availability of robust phylogenies is rendering them a suitable group to further substantiate the relationship of long bone CSP with locomotor ecology and body mass while taking the phylogenetic non-independence among species into account.