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Evaluation of frictional wear in a follow-up screw-rod kinematic node in GGS transpedicular stabilization.
Acta Bioeng Biomech
September 2024
Department of Mechanics, Materials and Biomedical Engineering, Faculty of Mechanical Engineering, Wrocław University of Science and Technology, Wrocław, Poland.
: The aim of this study was to evaluate the abrasive wear of the sliding screw-rod joint used in growth guidance system (GGS) stabilizers, allowing for the translation of the screw along the rod during the spinal growth process in a standard and modified system. : The study used single kinematic screw-rod pairs made of titanium alloy Ti6Al4V. Mechanical tests (cyclic loads) simulated the stabilizer's operation under conditions similar to actual use.
View Article and Find Full Text PDFExploring van der Waals Cuprate Superconductors Using a Hybrid Microwave Circuit.
Nano Lett
January 2025
Max Planck Institute for Chemical Physics of Solids, 01187 Dresden, Germany.
The advent of two-dimensional van der Waals materials is a frontier of condensed matter physics and quantum devices. However, characterizing such materials remains challenging due to the limitations of bulk material techniques, necessitating the development of specialized methods. Here, we investigate the superconducting properties of BiSrCaCuO flakes by integrating them with a hybrid superconducting microwave resonator.
View Article and Find Full Text PDFCryopreservation is a widely used technique to preserve biological samples for extended periods of time at low temperatures. Even though it is known to have significant effects on cell viability, its effect on their metabolism remains unexplored. Studying how cryopreservation influences the metabolism of cells is important to guarantee the reliability of samples transported between sites for analysis.
View Article and Find Full Text PDFComparative Study of Anti-COVID Mouthwash and Remineralization Agents on Dentinal Tubular Occlusion: An Study.
J Int Soc Prev Community Dent
December 2024
Assistant professor, Oral and Dental Disease Research Center, Department of Operative Dentistry, Faculty of Dentistry, Zahedan University of Medical Sciences, Zahedan, Iran.
Aim: Tooth sensitivity caused by exposed dentin tubules is a common clinical problem requiring correct treatment methods. Owing to the spread of the COVID-19 virus, it has become common to use different mouthwashes, including 1.5% hydrogen peroxide (HP), before dental procedures.
View Article and Find Full Text PDFCo-existing neuropathological comorbidities have been repeatedly reported to be extremely common in subjects dying with dementia due to Alzheimer disease. As these are likely to be additive to cognitive impairment, and may not be affected by molecularly-specific AD therapeutics, they may cause significant inter-individual response heterogeneity amongst subjects in AD clinical trials. Furthermore, while originally noted for the oldest old, recent reports have now documented high neuropathological comorbidity prevalences in younger old AD subjects, who are more likely to be included in clinical trials.
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