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Last Updated: 10 November 2022

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Biostratinomic alterations of an Edmontosaurus “mummy” reveal a pathway for soft tissue preservation without invoking “exceptional conditions”

Under that framework, desiccation and rapid burial in Dinosaurian mummies in particular, it appears, necessitate two mutually exclusive taphonomic techniques to protect under those circumstances: desiccation and rapid burial. Here we show you a recently prepared Edmontosaurus mummy that reveals an alternative fossilization route for hard tissues. Although the skin on this specimen is preserved in three dimensions and contains biomarkers, it is also marked by the first documented instances of carnivore activity on dinosaurian soft tissue during the perimortem period. Our assumptions guide specimen collection and analysis, and the presence of soft tissues and biomolecules in fossils that were not immediately buried, such as this mummy, indicate that such findings are more common than previously expected.

Source link: https://doi.org/10.1371/journal.pone.0275240


Indo-European cereal terminology suggests a Northwest Pontic homeland for the core Indo-European languages

Questions regarding the origins of the Indo-European language dispersal and timing are both crucial to discussions on the formation of the European and Asian linguistic landscapes, which are closely linked to debates over the origins and distribution of the continents. Questions regarding the Proto-Indo-European speakers' subsistence in the Yamnaya and Pre-Yamnaya locations that eventually gave rise to the Indo-European language family are largely dependent on linguistic reconstruction of the Proto-Indo-European speakers' subsistence. The early, eastern Yamnaya of the Don-Volga Steppe, owing to the lack of evidence for agricultural activities, does not provide a reliable archaeological proxy for the core Indo-European language group, and that this stage of the language family more likely reflects a mixed subsistence, as suggested for western Yamnaya groups along or west of the Dnieper River.

Source link: https://doi.org/10.1371/journal.pone.0275744


Automatic multi-anatomical skull structure segmentation of cone-beam computed tomography scans using 3D UNETR

The segmentation of medical and dental images is a significant step in automated clinical decision support systems. This work focuses on the integration of the Medical Open Network for Artificial Intelligence framework's state-of-the-art UNEt TRansformers. Models were developed and validated by our developers using 618 anonymous Cone-Beam Computed Tomography volumetric photographs of the head obtained with various parameters from various laboratories for a generalized clinical use.

Source link: https://doi.org/10.1371/journal.pone.0275033


Exogenous glucose oxidation during endurance exercise under low energy availability

During endurance exercise, the present research was conducted to determine the effect of endurance exercise under low energy availability on exogenous glucose oxidation during endurance exercise. Exogenous glucose oxidation was measured using 13C-labeled glucose during the endurance exercise on day 2 and respiratory gas samples were collected. In addition, blood glucose and lactate levels were measured right after exercise on day 2. During the 60 minutes of exercise, there were no significant differences between trials in 13C excretion and a region under the curve. However, during endurance training, the respiratory exchange ratio and carbohydrate oxidation displayed significantly lower values in the LEA trial than in the NEA trial. After a day of endurance training under poor EA, blood serum insulin and total ketone body concentrations were significantly reduced. In summary, low EA during endurance exercise reduced systemic carbohydrate oxidation; however, exogenous glucose oxidation remained unchanged during exercise under low EA.

Source link: https://doi.org/10.1371/journal.pone.0276002

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions