High-resolution magnetic resonance neurography (MRN) is being increasingly employed for the evaluation of peripheral nerves. We describe a case of spiral groove syndrome (Saturday night palsy) and illustrate the role of advanced 3 Tesla MRN imaging techniques, including three-dimensional diffusion-weighted fat-suppressed reversed fast imaging with steady-state precession and diffusion tensor imaging.
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http://dx.doi.org/10.1055/s-0032-1306377 | DOI Listing |
bioRxiv
November 2024
California Institute for Quantitative Biosciences, University of California at Berkeley, Berkeley, CA 94720, USA.
The 26S proteasome targets many cellular proteins for degradation during general homeostasis, protein quality control, and the regulation of vital processes. A broad range of proteasome-interacting cofactors thereby modulates these functions and aids in substrate degradation. Here, we solved several high-resolution structures of the redox active cofactor TXNL1 bound to the human 26S proteasome at saturating and sub-stoichiometric concentrations by time resolved cryo-EM.
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November 2024
United Nations Development Program (UNDP), Kampala, Uganda.
This paper focuses on addressing the limitations of existing mechanical weeding methods for corn plants by introducing a spiral tendon-type precision weeding device specifically designed for corn fields. The study encompasses mechanical design and theoretical analysis to determine the overall structure, component parts, application scenarios, operation modes, and working principles of the device. The force applied to the spiral tendon weeding cutter head, a crucial working component of the device, is analyzed, along with its motion characteristics.
View Article and Find Full Text PDFMaterials (Basel)
November 2024
Department of Metal Forming, Mechanical Engineering Faculty, Lublin University of Technology, 20-618 Lublin, Poland.
This paper presents the experimental and numerical results of a study on producing axisymmetric parts made of the C60-grade steel by skew rolling. The experimental part of this study involved conducting the skew rolling process with varying parameters, including the forming angle , tool angle , chuck velocity , and reduction ratio . Their effect on the quality of produced parts was examined and described by the roughness parameter Ra.
View Article and Find Full Text PDFClin Radiol
November 2024
Department of Musculoskeletal Radiology, Royal Orthopedic Hospital, Birmingham, UK. Electronic address:
Adv Sci (Weinh)
November 2024
Department of Chemical Engineering, University of Bath, Bath, BA2 7AY, UK.
This work presents the successful manufacture and characterization of bespoke carbon adsorbent microstructures such as tessellated (TES) or serpentine spiral grooved (SSG) by using 3D direct light printing. This is the first time stereolithographic printing has been used to exert precise control over specific micromixer designs to quantify the impact of channel structure on the removal of n-butane. Activated microstructures achieved nitrogen Brunauer Emmett Teller (BET) surface areas up to 1600 m g while maintaining uniform channel geometries.
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