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Vascular and Osteological Morphology of Expanded Digit Tips Suggests Specialization in the Wandering Salamander (Aneides vagrans).
J Morphol
January 2025
Department of Biology, Gonzaga University, Spokane, Washington, USA.
For over a century researchers have marveled at the square-shaped toe tips of several species of climbing salamanders (genus Aneides), speculating about the function of large blood sinuses therein. Wandering salamanders (Aneides vagrans) have been reported to exhibit exquisite locomotor control while climbing, jumping, and gliding high (88 m) within the redwood canopy; however, a detailed investigation of their digital vascular system has yet to be conducted. Here, we describe the vascular and osteological structure of, and blood circulation through, the distal regions of the toes of A.
View Article and Find Full Text PDFDeep-learning-based extraction of circle of Willis topology with anatomical priors.
Sci Rep
December 2024
Department of Applied Mathematics, Technical Medical Centre, University of Twente, Enschede, The Netherlands.
The circle of Willis (CoW) is a circular arrangement of arteries in the human brain, exhibiting significant anatomical variability. The CoW is extensively studied in relation to neurovascular pathologies, with certain anatomical variants previously linked to ischemic stroke and intracranial aneurysms. In an individual CoW, arteries might be absent (aplasia) or underdeveloped (hypoplasia, diameter < 1 mm).
View Article and Find Full Text PDFNeuroarchitecture of the Central Complex in the Madeira Cockroach Rhyparobia maderae: Tangential Neurons.
J Comp Neurol
December 2024
Department of Biology, Animal Physiology, Philipps-University of Marburg, Marburg, Germany.
Navigating in diverse environments to find food, shelter, or mating partners is an important ability for nearly all animals. Insects have evolved diverse navigational strategies to survive in challenging and unknown environments. In the insect brain, the central complex (CX) plays an important role in spatial orientation and directed locomotion.
View Article and Find Full Text PDFMaterial, Aerodynamic, and Operational Aspects of Single-Skin Paraglider.
Materials (Basel)
November 2024
Department of Mechanical Engineering, Informatics and Chemistry of Polymer Materials, Lodz University of Technology, Żeromskiego 116, 90-924 Lodz, Poland.
The operating comfort of a paraglider is created by the aerodynamic parameters as well as the mass and packing volume of the wing. A classic paraglider has upper and lower covers. To reduce the material and manufacturing costs as well as protect the environment, it is possible to introduce a single-skin wing.
View Article and Find Full Text PDFStair-Climbing Versus Machine-Based Resistance Exercise to Improve Muscle Power Among Older Adults: A Noninferiority Trial.
J Strength Cond Res
November 2024
Department of Movement Sciences, Physical Activity, KU Leuven, Sports and Health Research Group, Leuven, Belgium; and.
Van Roie, E, van Uffelen, J, and Delecluse, C. Stair-climbing versus machine-based resistance exercise to improve muscle power among older adults: a non-inferiority trial. J Strength Cond Res XX(X): 000-000, 2024-Machine-based resistance training (RT) can reduce the age-related loss in muscle power (Pmax).
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