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Extraordinary SERS on nanostructured self-assembled silver films due to preliminary random nano-profiling of substrate and ultrasonic exposure of analyte during the deposition.
Spectrochim Acta A Mol Biomol Spectrosc
December 2024
Institute for Theoretical and Applied Electromagnetics RAS, Moscow 125412, Russia; Moscow Institute of Physics and Technology, Dolgoprudny, Moscow Region 141700, Russia.
In this study, we have investigated the surface-enhanced Raman scattering (SERS) spectra of myoglobin on silver substrates with different morphology. The aim was to determine the optimal parameters of analyte and substrate preparation for obtaining of high-amplitude SERS spectra of proteins. It is shown that not only the morphology of the silver film, but also the method of analyte molecules deposition on the SERS substrate plays an important role.
View Article and Find Full Text PDFAtypical Presentation of Spindle Cell Lipoma in a Young Male with a History of Malignant Melanoma.
Dermatopathology (Basel)
November 2024
Department of Dermatology, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA.
Spindle cell lipoma (SCL) is a benign adipocytic tumor usually found in the subcutis of the posterior neck, upper back, and shoulder, predominantly in middle-aged males. This case report describes an atypical presentation of SCL in a 26-year-old male with a history of malignant melanoma. The patient presented with an erythematous plaque with central hyperpigmentation on the right upper arm, an uncommon location and presentation for SCL.
View Article and Find Full Text PDFA Case Report of Rapunzel Syndrome in 14-Year-Old Girl.
Cureus
November 2024
Department of General and Operative Surgery, Medical University "Prof. Dr. Paraskev Stoyanov", Varna, BGR.
Trichobezoar or hairball in the proximal part of the gastrointestinal tract is a rare condition that occurs mainly in young and adolescent females. Since human hair is resistant to digestive enzymes and resistant to peristalsis, it easily accumulates between the folds of the mucosa. Over time, food and mucus accumulate within the hair, forming a compact mass that fills almost the entire lumen.
View Article and Find Full Text PDFAn Atypical Presentation of Osseous Choristoma in a 63-Year-Old Male: A Lesion Beyond the Common Demographic and Anatomical Norms.
Cureus
November 2024
Otolaryngology-Head and Neck Surgery, Freeman Health System, Joplin, USA.
Osseous choristomas, characterized by ectopic bone, are rare and typically found in the head and neck, particularly on the tongue. This report describes a unique case of an osseous choristoma in a 63-year-old male with an unusual posterior tongue location. An incidental base of tongue (BOT) mass was discovered during a bronchoscopy for lung biopsy.
View Article and Find Full Text PDFIdentifying and counteracting fraudulent responses in online recruitment for health research: a scoping review.
BMJ Evid Based Med
December 2024
Westmead Applied Research Centre, School of Medicine, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia.
Objectives: This study aimed to describe how health researchers identify and counteract fraudulent responses when recruiting participants online.
Design: Scoping review.
Eligibility Criteria: Peer-reviewed studies published in English; studies that report on the online recruitment of participants for health research; and studies that specifically describe methodologies or strategies to detect and address fraudulent responses during the online recruitment of research participants.
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