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Hair Shaft Fracture in a Young Athlete: A Rare Case Report of Acquired Trichorrhexis Nodosa.
Cureus
August 2024
Department of Dermatology, Saveetha Medical College and Hospital, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, IND.
Article Synopsis
- - Trichorrhexis nodosa (TN) is a hair shaft disorder causing hair fragility and weak points, often resulting from daily hair care or environmental exposure, and is more commonly acquired than congenital.
- - A case study of a 19-year-old male volleyball player revealed acquired distal TN, linked to chlorine exposure and excessive training, with symptoms including abnormal hair fragility and visible white knots along the hair shafts.
- - Diagnosis was confirmed through dermoscopy and microscopy, leading to recommendations for gentle hair care; follow-up showed no recurrence after six months, emphasizing the importance of managing underlying causes.
Carbon Allotropes-Based Paints and Their Composite Coatings for Electromagnetic Shielding Applications.
Nanomaterials (Basel)
May 2022
Center of Materials Technology and Photonics, Hellenic Mediterranean University, 71410 Heraklion, Crete, Greece.
The present manuscript reports on optimized formulations of alcohol-based conductive paints for electromagnetic interference shielding (EMI), which can ensure compatibility and reduce the visibility of electronic equipment, as a continuation of our previous work in this field, which examined water-based formulations for other applications. Graphite, carbon black, graphene, FeO, Fe ore, and PEDOT:PSS in various ratios and combinations were employed in an alcohol base for developing homogeneous paint-like fluid mixtures that could be easily applied to surfaces with a paintbrush, leading to homogeneous, uniform, opaque layers, drying fast in the air at room temperature; these layers had a reasonably good electrical conductivity and, subsequently, an efficient EMI-shielding performance. Uniform, homogeneous and conductive layers with a thickness of over 1 mm without exfoliations and cracking were prepared with the developed paints, offering an attenuation of up to 50 dB of incoming GHz electromagnetic radiation.
View Article and Find Full Text PDFA Simple Method for a Protective Coating on Stainless Steel against Molten Aluminum Alloy Comprising Polymer-Derived Ceramics, Oxides and Refractory Ceramics.
Materials (Basel)
March 2021
CEA, LITEN, Université Grenoble Alpes, 17 Rue des Martyrs, F-38054 Grenoble, France.
A new coating based on polymer-derived ceramics (PDC), oxides and refractory ceramic with a thickness of around 50 µm has been developed to improve the resistance corrosion of stainless steel substrate against molten aluminum alloy in a thermal energy storage (TES) system designed to run at high temperature (up to 600 °C). These coatings implemented by straightforward methods, like tape casting or paintbrush, were coated on planar and cylindrical stainless-steel substrates, pyrolyzed at 700 °C before being plunged for 600 and 1200 h in molten AlSi at 700 °C. The stainless-steel substrate appears healthy without intermetallic compounds, characteristic of molten aluminum alloy corrosion.
View Article and Find Full Text PDFThe rubber hand illusion depends on the tactile congruency of the observed and felt touch.
J Exp Psychol Hum Percept Perform
October 2015
School of Psychology, University of Sussex.
The rubber hand illusion (RHI) occurs when the participants' own unseen hand is stroked in synchrony with an observed rubber hand. It manifests itself in terms of a tendency to misreport the position of one's own hand as nearer to the rubber hand (proprioceptive drift) and in terms of feelings of ownership of the rubber hand. Many studies have examined whether the illusion depends on characteristics of the hand (e.
View Article and Find Full Text PDF"Paintbrush" appearance of Penicillium species in Thin-Prep cervico-vaginal (Pap) test.
Diagn Cytopathol
October 2008
Department of Pathology, Division of Cytopathology, University of Virginia Health System, Charlottesville, Virginia 22908, USA.
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