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Related Articles from SNS
Temporal persistence of admixed phenotypes in a damselfly hybrid zone
In odonates, hybridization has been documented in several species pairs, yet the long-term persistence of hybrid phenotypes remains poorly understood, particularly in Neotropical systems. Here, we investigate a putative hybrid zone between Ischnura capreolus and Ischnura cyane, which overlap along an altitudinal gradient in the Colombian Andes. We combined temporal sampling across sympatric and allopatric localities with multilocus genetic analyses and geometric morphometrics of wings and...
TopoPult-SSL: Gland-Mask-Free Cross-Device Meibomian Gland Segmentation via Self-Distilled Weak Clinical Priors
arXiv:2606.05347v1 Announce Type: new Abstract: Every new clinical imaging device creates a domain shift where dense gland masks are expensive yet cheap clinical signals -- eyelid outlines, Pult grades, morphometric ratios -- are routinely recorded. We present TopoPult-SSL, a two-stage framework for cross-device meibomian gland segmentation. Stage 1 adapts a source-trained model without target gland masks in the training loss, using four weak-prior anchors driven by target eyelid masks and...
Geometry-Driven Flow Analysis of Brain Sulcal Pattern
Announce Type: new Abstract: Cortical folding reflects coordinated neurodevelopmental processes and is increasingly recognized as a sensitive marker of neurological disease. However, most existing analyses rely on indirect scalar summaries that do not explicitly model folding geometry itself. In juvenile myoclonic epilepsy (JME), a common genetic epilepsy, cortical abnormalities are often subtle, spatially distributed, and difficult to detect using conventional morphometric measures.
The XenCart Protocol: A Method for Alcian Blue Labeling and Quantitative Analysis of Craniofacial Cartilage in Xenopus
Craniofacial birth defects, such as cleft lip and palate, are among the most common congenital anomalies and often arise from disruptions in early facial patterning. Many of these defects are linked to environmental teratogens, yet such exposures cannot be directly tested in humans, making animal models essential for evaluating developmental risks. Xenopus laevis offers a powerful solution: its tadpoles develop externally, share deeply conserved craniofacial patterning mechanisms with...