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We present a method for determining the refractive-index profile of polymer optical fiber preforms through a direct-deflection measurement. The method is simple to use, compact, and has good resolution. The profile is obtained from the deflection data by numerically integrating the differential-ray equation for a radial refractive-index gradient. Corrections for topographical deviations are also discussed. Results for both graded-index and step-index fibers are presented.
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http://dx.doi.org/10.1364/ao.41.003404 | DOI Listing |
J Adv Nurs
September 2025
Department of Sociology and Behavioral Sciences, De La Salle University, Manila, Philippines.
Aim: To explore the potential axiological shift in nursing, drawing upon a critical reading of the new definition of 'nursing' published by the International Council of Nurses (ICN) in June 2025, and to articulate its implications for research and doctoral education.
Design: Critical discussion paper.
Methods: Guided by critical inquiry and emancipatory nursing knowledge development approaches, this paper deploys retroductive analysis to interrogate the axiological commitments that inform and are generated by the 2025 ICN definition and how it relates to nursing research.
J Adv Nurs
September 2025
Department of Internal Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands.
Aims: To assess self-reported practices and knowledge of nurses and prescribers (i.e., physicians and nurse practitioners) on intravenous fluid therapy, and to evaluate how this is documented through a clinical documentation review.
View Article and Find Full Text PDFJ Adv Nurs
September 2025
Faculty of Psychology and Educational Sciences, KU Leuven, Leuven, Belgium.
Aim: To explore the identity and body experiences of emerging adults with congenital heart disease.
Design: Qualitative descriptive study.
Methods: Narratives from 152 emerging adults about living with congenital heart disease and its impact on their identity and body experiences were analysed using template analysis.
J Am Assoc Lab Anim Sci
March 2025
Animal Resources Center, Department of Surgery, University of Chicago, Chicago, Illinois; and.
The Guide for the Care and Use of Laboratory Animals provides recommendations on sanitation frequencies for rodent caging equipment; however, it allows for performance standards to be used when extending this frequency for individually ventilated cage (IVC) caging. Our institution wanted to reexamine our current standards of care for mouse IVC caging, which includes a 14-d cage bottom and bedding change as well as the use of corncob bedding. This was driven by desire to reduce the stress to mice associated with cage change, and by recent literature showing a potential improved absorbency and multiple health and welfare benefits of paper pulp cellulose bedding products.
View Article and Find Full Text PDFArterioscler Thromb Vasc Biol
September 2025
Vascular Biology Program, Boston Children's Hospital and Harvard Medical School, MA (K. Cui, B.Z., B.W., S.E.-B., A.V., H.C.).
Background: Atherosclerosis is a chronic inflammatory disease characterized by the accumulation of lipid-laden foam cells and plaques within the arterial wall. Dysfunctional vascular smooth muscle cells (VSMCs), fibroblasts, endothelial cells, and macrophages contribute to disease progression. Here, we report that macrophage-specific expression of epsins, highly conserved endocytic adaptor proteins involved in clathrin-mediated endocytosis, accelerates atherosclerosis in Western diet-fed mice.
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