Results 131 to 140 of about 893,609 (302)
, 2015 The human crystalline lens is a complex and intricate structure that continuously grows throughout our lifetime. The crystalline lens has a non-uniform distribution of protein concentrations which produces an optical gradient within the lens in both the ...
Heilman, Bianca
core +2 more sources
Lens-induced glaucoma in the elderly
, 2009 Dimitris Papaconstantinou, Ilias Georgalas, Nikos Kourtis, Augustine Krassas, Andreas Diagourtas, Chrysanthi Koutsandrea, Gerasimos GeorgopoulosDepartment of Ophthalmology, University of Athens, Athens, GreeceAbstract: Lens-induced glaucoma comprises a ...
Ilias Georgalas +3 more
core
Biomechanical Characterization of Crystalline Lens by Optical Coherence Elastography
, 2022 This dissertation reports on the application of optical coherence tomography (OCT) based elastography technique to assess the biomechanical properties of crystalline lens tissue noninvasively quantitatively.
Zhang, Hongqiu
core
Low Threshold Vertical Cavity Surface Emitting Lasers Based on CsPbI3 Thin Films
Advanced Science, EarlyView.The first vertical‐cavity surface‐emitting laser (VCSEL) based on CsPbI3 thin films is fabricated by planar hot pressing. By optimizing the cavity design through optical gain assessment and rigorous coupled‐wave analysis, the VCSEL achieved an exceptionally low lasing threshold of 2.8 µJ cm−2.
Naho Kurahashi +11 more
wiley +1 more source
Revista Electrónica Dr. Zoilo E. Marinello Vidaurreta, 2017 Background: cataract is the most frequent cause of preventable blindness in the municipality of Puerto Padre and in the country. Its treatment is surgical.Objective: to characterize the clinical and epidemiological variables in patients operated on for ...
Juan Carlos Góngora Torres +4 more
doaj
Semi‐Artificial Photosynthesis Enables Light‐Driven Biomanufacturing in Non‐Photosynthetic Bacteria
Advanced Science, EarlyView.A non‐invasive strategy exploits endogenous H2S metabolism in B. subtilis to drive in situ CdS biomineralization, enabling tight bio‐abiotic contact without genetic modification. Light harvested by the biomineralized nanoparticles powers NADPH regeneration, elevating 2’‐fucosyllactose and surfactin titres two‐ to three‐fold.
Jie Zheng +8 more
wiley +1 more source
Studies of the crystalline lens using magnetic resonance imaging [PDF]
, 2004 The eye lens grows continuously throughout life and changes its shape as the eye changes focus from a distant to a near object (the process of accommodation).
Jones, Catherine Elizabeth
core
Bilateral posterior crystalline lens dislocations in an otherwise healthy child
, 2017 Introduction: Ectopia lentis is defined as a crystalline lens displacement, either partially or completely, due to zonular abnormalities. It can be a result of trauma, hereditary ocular disease, or part of systemic diseases, like Marfan syndrome and ...
Alharbi, BA +9 more
core +1 more source
Decoupling Stable Cyclic Deformation From Defect Accumulation in Metals
Advanced Science, EarlyView.Introducing amorphous nanoparticles into a metal matrix enables a cyclic deformation regime where strain hardening and defect accumulation are decoupled. These nanoparticles act as dislocation sinks and undergo reversible shear transformations, sustaining microstructural stability over millions of cycles.
Chenjun Ye +9 more
wiley +1 more source
Advanced Science, EarlyView.This study elucidates hydrogen transport and reaction mechanisms in ePMR using 1‐hexyne hydrogenation as a model reaction. Hydrogen transport operates via dual pathways involving hydrogen atom permeation and H2‐mediated re‐dissociation on secondary metal layers.
Samuel J. Shin +6 more
wiley +1 more source