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Cross-talk-free, high extinction ratio, and ultra-compact all‑optical 4 × 2 encoder using graphene-based plasmonic waveguides.
Sci Rep
January 2025
Department of Communications and Electronics, School of Electrical and Computer Engineering, Shiraz University, Shiraz, Iran.
This paper presents an all-optical 4 × 2 encoder based on graphene-plasmonic waveguides for operation in the wavelength range of 8-12 μm. The basic plasmonic waveguide consists of a silicon (Si) strip and a graphene sheet supported by two dielectric ridges. Surface plasmon polaritons (SPPs) are stimulated in the spatial gap between the graphene sheet and the Si strip.
View Article and Find Full Text PDFA "1.5-Stage" Spacer Construct Using Revision Components for the Management of Periprosthetic Joint Infection of the Knee.
J Arthroplasty
January 2025
Department of Orthopaedic Surgery, Keck School of Medicine of the University of Southern California, Los Angeles, California.
Introduction: The two-stage surgical protocols used for the treatment of periprosthetic joint infection (PJI) following total knee arthroplasty (TKA) are associated with marked patient morbidity. As such, alternatives such as durable "1.5-stage" spacer constructs have gained popularity.
View Article and Find Full Text PDFTailoring anaesthetic strategies for diabetes research: Acepromazine vs. medetomidine in Aachen minipigs.
PLoS One
January 2025
Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany.
Pre-established anaesthetic protocols in animal models might unexpectedly interfere with the main outcome of scientific projects and therefore they need to account for the specific research goals. We aimed to optimize the anaesthetic protocol and animal handling strategies in a diabetes-related-study exemplifying how the anaesthetic approach must be adjusted for individual research targets. Aachen minipigs were used as a model to test long-lasting skin glucose sensors for diabetic human patients.
View Article and Find Full Text PDFSafe access to laparoscopic cholecystectomy in patients with previous periumbilical incsions: new approach to avoid entry related bowel injury.
Langenbecks Arch Surg
January 2025
Alexandria Main University Hospital, Alexandria, Egypt.
Background: Patients with prior abdominal surgeries are at higher risk of intra-peritoneal adhesions near the trocar entry site, increasing the likelihood of organ injury during laparoscopic cholecystectomy (LC). This study evaluates a novel technique where the epigastric trocar is inserted first, after creating pneumoperitoneum, to allow safe dissection of adhesions under direct vision before placing the umbilical trocar.
Methods: This prospective study included 244 patients with symptomatic uncomplicated gallstone disease and a history of previous abdominal surgeries extending to the umbilicus.
Electric-field induced sleep promotion and lifespan extension in Gaucher's disease model flies.
Biochem Biophys Rep
March 2025
Institute for Chronobiology, Foundation for Advancement of International Science (FAIS), 3-24-16 Kasuga, Tsukuba, Ibaraki, 305-0812, Japan.
Gaucher's disease (GD) is a genetic disease characterized by a mutation in the metabolic enzyme glucocerebrosidase (GBA1), leading to the accumulation of glucosylceramide in tissues. We previously discovered that a -inserted mutation in the gene of fruit flies, , mimics human neuronopathic GD (nGD) characteristics, providing a promising model for studying the molecular mechanisms of the disease. We also reported that extremely low-frequency electric fields (ELF-EFs) promote sleep and extend the lifespan of wild-type flies.
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