Liquid-crystal light valves can control the orientation of a nematic layer under the independent or combined action of applied voltage and impinging light intensity; hence, they offer a unique environment for the propagation of spatial optical solitons or nematicons. We demonstrate nematicon excitation, propagation, and steering in photoconductive light valves.
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http://dx.doi.org/10.1364/ol.34.000737 | DOI Listing |
BMJ Case Rep
January 2025
Cardiology, East Cheshire NHS Trust, Macclesfield, UK.
Non-bacterial thrombotic endocarditis (NBTE) is characterised by sterile vegetations on heart valves and often emerges in hypercoagulable states like malignancy. It is frequently underdiagnosed and only comes to light during postmortem examination. Early diagnosis and treatment with anticoagulation can help lower mortality.
View Article and Find Full Text PDFJ Opt Soc Am A Opt Image Sci Vis
August 2024
We simplify, to first order in , the generalized, special relativistic treatment of a Doppler shift from an arbitrarily translating mirror originally derived by Ashworth and Davies [Proc. IEEE64, 280 (1976)IEEPAD0018-921910.1109/PROC.
View Article and Find Full Text PDFInt Angiol
December 2024
Vascular Surgery Research Laboratories, Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA -
The glycocalyx is an essential structural and functional component of endothelial cells. Extensive hemodynamic changes cause endothelial glycocalyx disruption and vascular dysfunction, leading to multiple arterial and venous disorders. Chronic venous disease (CVD) is a common disorder of the lower extremities with major health and socio-economic implications, but complex pathophysiology.
View Article and Find Full Text PDFFront Pediatr
January 2025
Heart Center, Women and Children's Hospital, Qingdao University, Qingdao, China.
Background: This study aimed to assess right ventricular (RV) endocardial fibroelastosis (EFE) in fetuses with critical pulmonary stenosis (CPS) and pulmonary atresia with intact ventricular septum (PA-IVS) and to investigate the implications of RV EFE for circulatory outcomes.
Methods: Fetal echocardiographic data from July 2018 to January 2021 were collected. Three reviewers independently graded EFE based on the presence and extent of endocardial echogenicity.
Pathogens
January 2025
Biomedical Sciences Laboratory (CBMU), School of Medicine, Universidad de Los Andes, Bogotá D.C 111711, Colombia.
, the etiological agent of Chagas disease, is a parasite known for its diverse genotypic variants, or Discrete Typing Units (DTUs), which have been associated with varying degrees of tissue involvement. However, aspects such as parasite attachment remain unclear. It has been suggested that the TcI genotype is associated with cardiac infection, the most common involved site in chronic human infection, while TcII is associated with digestive tract involvement.
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