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    Gut microbiota regulates optic nerve fiber myelination by Giulia Ronchi, Davide Pellegrino, Marwa El Soury, Olga Amato, Francesco Gaia, Sajjad Farzin, Raffaele Nuzzi, Marijana Basic, Silvia Bolsega, Stefano Geuna, Matilde Cescon, Kirsten Haastert-Talini, Kirsten Haastert-Talini, Giovanna Gambarotta

    Published 2025-02-01
    “…However, no data are available on the possible effect of the gut microbiota on the optic nerve fiber maturation and myelin development.MethodsWe investigated the impact of gut microbiota on the optic nerves collected from neonatal and young adult germ-free (GF), gnotobiotic (stably colonized with 12 bacteria strains, OMM12) and control (colonized with a complex gut microbiota, CGM) mice, by performing stereological and morphoquantitative analyses with transmission electron microscopy and gene expression analysis by quantitative real-time PCR.ResultsYoung adult GF and OMM12 optic nerve axons are smaller and hypermyelinated compared to CGM ones, while no such differences were detected in neonatal optic nerves. …”
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    A Study on Improved Langley Plot Calibration Methods Using Noise Reduction for Field Solar Spectral Irradiance (SSI) Observation Instruments by Guanrui Li, Aiming Zhou, Yu Huang, Xiaohu Yang, Zhanfeng Li

    Published 2025-02-01
    “…This study introduces a pixel-based real-time noise deduction method and evaluates its performance using laser sources, Fraunhofer dark lines, and an improved Langley plot calibration. …”
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  9. 609

    A Water Extraction Method for Multiple Terrains Area Based on Multisource Fused Images: A Case Study of the Yangtze River Basin by Huang Ruolong, Shen Qian, Fu Bolin, Yue Yao, Yuting Zhang, Qianyu Du

    Published 2025-01-01
    “…In multiple terrains area, our method's Kappa coefficient is 0.39 higher than synthetic aperture radar and optical imagery water index and 0.06 higher than Res-U-Net. …”
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  10. 610

    Diagnostic Accuracy of the Optical Coherence Tomography in Assessing Glaucoma Among Filipinos. Part 2: Optic Nerve Head and Retinal Nerve Fiber Layer Parameters by Noel de Jesus Atienza, MD, MSc, Joseph Anthony Tumbocon, MD

    Published 2012-06-01
    “…All ONH and RNFL OCT parameters showed statistically significant differences in mean values between the 2 groups. The ROC curve identified the vertical integrated rim area (AUC: 0.822), the cup-disc area ratio (AUC: 0.816), and the horizontal integrated rim width (AUC: 0.794) as the best optic disc parameters; and the RNFL average thickness (AUC: 0.827), the superior quadrant (AUC: 0.807), and the inferior quadrant (AUC: 0.804) as the best RNFL parameters. …”
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    The impacts of different eyes, individual differences, and different time points in healthy rats on the variability of visual electrophysiological examination indicators by Hong Chen, Yu Cheng, Ke Diao, YiFan Wang, Jing An, Haijiang Zhang, RongRong Li, Dan Zhang, SuMian Cheng, Minglian Zhang, LiFei Wang

    Published 2025-07-01
    “…PurposeThis article discussed the repeatability and coefficient of variation (CV) of flash visual evoked potential (FVEP) and full-field electroretinogram (ffERG) indicators of different eyes, individuals, and time points of normal male Sprague-Dawley rats, providing a reference for selecting a reasonable control scheme for retinal and optic nerve disease rat models.MethodsTwenty normal 6-8 week Sprague-Dawley rats were selected, from which 10 randomly chosen rats underwent ffERG examination and the other 10 underwent FVEP examination. …”
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  14. 614

    Functionalisation of AgInS2/ZnS TQDs with 4-aminophenyl boronic acid for the development of a spectrofluorometric method for digoxin determination in pharmaceutical samples by Jose A. Rodriguez, Alfredo Guevara-Lara, Carlos Ángel-Jijón, Raybel Muñoz

    Published 2025-09-01
    “…Use of AgInS2/ZnS functionalized with 4-APBA are a suitable strategy for digoxin analysis in pharmaceutical based on the stability of the nanoparticle, the optimal analytical parameters, and the rapidness of the method. These novel nanomaterials have significant potential for the development of optical and visual sensors and finding merit additional research for its application in more complex matrices such as biological.…”
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  15. 615

    Primary beam calibration for commensal telescopes utilizing offset optics by Emil Polisensky, Tracy E. Clarke, Simona Giacintucci, Wendy Peters

    Published 2024-12-01
    “…The VLA Low-band Ionosphere and Transient Experiment (VLITE) faces challenges in calibration due to the offset Cassegrain optics used in its commensal observing system. This study aims to develop a novel calibration method to improve accuracy with no impact on the Very Large Array (VLA) primary science observations.MethodsWe used the apparent brightness of standard candles identified in VLITE’s commensal data to develop 1D and 2D primary beam response models. …”
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  16. 616

    A Study of Resolution Improvement in Noncoherent Optical Coherence Imaging by Guoliang Yang, Junhong Su, Yuan Li, Jialin Cai, Yiren Li

    Published 2022-01-01
    “…The empirical analysis of the FINCH imaging system is carried out. The observed optical path is designed, and the method of making a bit-phase mask loaded on a spatial light modulator is presented. …”
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    Effect of Annealing Treatment on the Optical Properties of Silicon Nitride Waveguides by A. A. Ershov, K. N. Chekmezov, A. P. Burovikhin, A. A. Nikitin, S. N. Abolmasov, A. A. Stashkevich, E. I. Terukov, A. V. Eskov, A. A. Semenov, A. B. Ustinov

    Published 2024-05-01
    “…To investigate the effect of annealing treatment on the optical properties of PICs based on the silicon nitride films with different thicknesses obtained by plasma-enhanced chemical vapor deposition.Materials and methods. …”
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    Creative Techniques on Optical Fiber to Produce Luminescence Electronic Textiles by E. Feli, A. Meftahi

    Published 2023-11-01
    “…Accordingly, optical fibers of three different thicknesses (0.25, 0.5, and 0.75 mm) were subjected to secondary operations using techniques such as knotting, pulling, grinding the surface with sandpaper, melting, and creating scratches with a cutter, and were exposed to LED to evaluate their luminescence. …”
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    Structure and Phase Composition and the Optical Properties of ZnO Coatings by О.P. Kul’ment’eva, А.A.-K.М. Muhammed, A.I. Kul’ment’ev

    Published 2010-01-01
    “…This paper presents the results of experimental investigation of the structure, phase composition and optical properties of ZnO coatings produced at different temperatures by the chemical deposition method from the vapor phase.…”
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