Results 101 to 110 of about 126,384 (221)
Who was the real sabertooth predator: Thylacosmilus or Thylacoleo?
Abstract Sabertoothed mammalian predators, all now extinct, were almost exclusively feloid carnivorans (Eutheria, Placentalia): here a couple of extinct metatherian predators are considered in comparison with the placental sabertooths. Thylacosmilus (the “marsupial sabertooth”) and Thylacoleo (the “marsupial lion”) were both relatively large (puma ...
Christine M. Janis
wiley +1 more source
Predicting Muscle Thickness Deformation from Muscle Activation Patterns: A Dual-Attention Framework [PDF]
Understanding the relationship between muscle activation and thickness deformation is critical for diagnosing muscle-related diseases and monitoring muscle health. Although ultrasound technique can measure muscle thickness change during muscle movement, its application in portable devices is limited by wiring and data collection challenges.
arxiv
Abstract The canine of saber‐toothed predators represents one of the most specialized dental structures known. Hypotheses about the function of hypertrophied canines range from display and conspecific interaction, soft food processing, to active prey acquisition.
Z. Jack Tseng
wiley +1 more source
Parvalbumin affects skeletal muscle trophism through modulation of mitochondrial calcium uptake
Summary: Parvalbumin (PV) is a cytosolic Ca2+-binding protein highly expressed in fast skeletal muscle, contributing to an increased relaxation rate. Moreover, PV is an “atrogene” downregulated in most muscle atrophy conditions.
Gaia Butera+8 more
doaj
Pituitary growth hormone (GH) and insulin-like growth factor-1 (IGF-1) play a critical role in the regulation of postnatal organ growth and overall body size.
Mitsunori Miyazaki
doaj +1 more source
Patterned Structure Muscle : Arbitrary Shaped Wire-driven Artificial Muscle Utilizing Anisotropic Flexible Structure for Musculoskeletal Robots [PDF]
Muscles of the human body are composed of tiny actuators made up of myosin and actin filaments. They can exert force in various shapes such as curved or flat, under contact forces and deformations from the environment. On the other hand, muscles in musculoskeletal robots so far have faced challenges in generating force in such shapes and environments ...
arxiv
Segmentation of Skeletal Muscle in Thigh Dixon MRI Based on Texture Analysis [PDF]
Segmentation of skeletal muscles in Magnetic Resonance Images (MRI) is essential for the study of muscle physiology and diagnosis of muscular pathologies. However, manual segmentation of large MRI volumes is a time-consuming task. The state-of-the-art on algorithms for muscle segmentation in MRI is still not very extensive and is somewhat database ...
arxiv
Abstract The evolution of organisms can be studied through the lens of developmental systems, as the timing of development of morphological features is an important aspect to consider when studying a phenotype. Such data can be challenging to obtain in fossil amniotes owing to the scarcity of their fossil record. However, the numerous remains of Rancho
Narimane Chatar+5 more
wiley +1 more source
This manuscript summarizes a case of biallelic dystrophin (DMD) variants in a mildly affected female patient and additionally highlights the phenotypic spectrum of one of the patient's two DMD variants, a deletion of exons 49–51. This deletion previously had few reports in the published literature, despite its frequency within our institution's ...
Elizabeth A. Ulm+3 more
wiley +1 more source
Benign masseter muscle hypertrophy
Summary: Idiopathic hypertrophy of the masseter muscle is a rare disorder of unknown cause. Some authors associate it with the habit of chewing gum, temporo-mandibular joint disorder, congenital and functional hypertrophies, and emotional disorders ...
Daniel Zeni Rispoli+5 more
doaj