Experience in 155 replantations of large segments of the extremities is discussed. The results of treatment are analysed from the standpoint of anoxia of the separated segments of the extremities. A case of replantation of the lower extremity (shin) with 42-hour anoxia is described. It is concluded that increased risk of replantation of large segments of extremities is determined in the first place by traumatic and hemorrhagic shock and not by the so-called transplantation toxicosis.
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Commun Eng
January 2025
School of Computer Science and Engineering, Sun Yat-sen University, Guangzhou, China.
Large-scale optimal design problems involving nonlinear differential equations are widely applied in modeling such as craft manufacturing, chemical engineering and energy engineering. Herein we propose a fast and flexible holomorphic embedding-based method to solve nonlinear differential equations quickly, and further apply it to handle the industrial application of reverse osmosis desalination. Without solving nonlinear differential equations at each discrete point by a traditional small-step iteration approach, the proposed method determines the solution through an approximation function or approximant within segmented computational domain independently.
View Article and Find Full Text PDFChemSusChem
January 2025
Forestry and Forest Products Research Institute: Shinrin Sogo Kenkyujo, Center for Advanced Materials, 1 Matsunosato, 305-8687, JAPAN.
Although microporous carbons can perform well for CO2 separations under high pressure conditions, their energy-demanding regeneration may render them a less attractive material option. Here, we developed a large-pore mesoporous carbon with pore sizes centered around 20-30 nm using a templated technical lignin. During the soft-templating process, unique cylindrical supramolecular assemblies form from the copolymer template.
View Article and Find Full Text PDFThe sarcin-ricin loop (SRL) is one of the most conserved segments of ribosomal RNA (rRNA). Translational GTPases (trGTPases), such as EF-G and EF-Tu and IF2, form contacts with the SRL that are critical for GTP hydrolysis and factor function. Previous studies showed that expression of 23S rRNA lacking the SRL confers a dominant lethal phenotype in E.
View Article and Find Full Text PDFInt J Surg Case Rep
January 2025
School of postgraduate, Amoud University, Somalia; Faculty of Science, Charles University, Czechia. Electronic address:
Introduction: Giant inguinoscrotal hernias (GIH), defined as hernias extending below the inner thigh midpoint in a standing position, are rare and often seen in resource-limited settings due to delayed medical care. These hernias pose surgical challenges, particularly in low- and middle-income countries (LMICs), where standardized management protocols are lacking, and risks such as cardiorespiratory compromise are significant.
Case Presentation: A 55-year-old male presented with a large, irreducible right inguinoscrotal hernia of 1.
RSC Adv
January 2025
Department of Chemistry, Carnegie Mellon University 4400 Fifth Avenue Pittsburgh PA 15213 USA
Polyurethanes (PU) make up a large portion of commodity plastics appearing in applications including insulation, footwear, and memory foam mattresses. Unfortunately, as thermoset polymers, polyurethanes lack a clear path for recycling and repurposing, creating a sustainability issue. Herein, using dynamic depolymerization, we demonstrate a simple one-pot synthesis for preparation of an upcycled polyurethane grafted graphene material (PU-GO).
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