A NEW FRAME FOR HOLDING SPHERICAL AND CYLINDRICAL LENSES DURING THE DETERMINATION AND CORRECTION OF ERRORS OF REFRACTION. [PDF]
, 1881 JamesE. Adams
openalex +1 more source
Refractive errors in 3-6 year-old Chinese children: a very low prevalence of myopia?
, 2015 PURPOSE To examine the prevalence of refractive errors in children aged 3-6 years in China. METHODS Children were recruited for a trial of a home-based amblyopia screening kit in Guangzhou preschools, during which cycloplegic refractions were measured in
Lan, Weizhong +6 more
core +1 more source
Advanced Healthcare Materials, EarlyView.Progestin drugs are loaded into a mesoporous silicon dioxide host by melt‐infiltration. Drugs that decompose at or close to their melting point can be loaded by the addition of cholesterol, which acts as a melting point suppressor. High mass loading of the drug is achieved, and dissolution of the composite is controlled by the nanoscale properties of ...
Geoffrey Hollett +13 more
wiley +1 more source
Smart Polymeric 3D Microscaffolds Hosting Spheroids for Neuronal Research via Quantum Metrology
Advanced Healthcare Materials, Volume 14, Issue 7, March 14, 2025.Development of a platform consisting of 3D microscaffolds supporting 3D embryoid bodies for neuronal research. The polymeric scaffolds enable directed growth of neurites. This study shows nanodiamond‐based quantum sensors graft onto the polymer material, enabling quantum metrology experiments within the 3D neuronal model and thereby providing a ...
Beatriz N. L. Costa +5 more
wiley +1 more source
Creating materials with a desired refraction coefficient: numerical experiments [PDF]
arXiv, 2010 A recipe for creating materials with a desired refraction coefficient is implemented numerically. The following assumptions are used: \bee \zeta_m=h(x_m)/a^\kappa,\quad d=O(a^{(2-\kappa)/3}),\quad M=O(1/a^{2-\kappa}),\quad \kappa\in(0,1), \eee where $\zeta_m$ and $x_m$ are the boundary impedance and center of the $m$-th ball, respectively, $h(x)\in C(D)
arxiv
ON AN IMPROVED OPTOMETER FOR ESTIMATING THE DEGREE OF ASTIGMATISM AND OTHER ERRORS OF REFRACTION. [PDF]
, 1886 John Tweedy
openalex +1 more source
Test and evaluation of the 2.4-micron photorefractor ocular screening system [PDF]
An improved 2.4-m photorefractor ocular screening system was tested and evaluated. The photorefractor system works on the principal of obtaining a colored photograph of both human eyes; and, by analysis of the retinal reflex images, certain ocular ...
Richardson, J. R.
core +1 more source
Advanced Healthcare Materials, EarlyView.The study introduces innovative 3D microtissues that replicate the glomerular filtration barrier of the kidney, offering a novel platform for understanding podocytopathies. These microtissues simulate the glomerulus's structure and dynamics, allowing for the modeling of podocyte injuries and drug testing.
Sara Buttό +5 more
wiley +1 more source
Influence on extracted complex refractive index from phase inaccuracy of reflection-type THz-time-domain spectroscopy [PDF]
arXivReflection-type terahertz (THz) time-domain spectroscopy (THz-TDS) enables the measurement of optical properties of opaque samples in the THz frequency range, e.g., carrier density and mobility. In this study, we examine the influence of phase inaccuracy on the extracted complex refractive index from reflection-type THz-TDS.
arxiv
On an Error in Brunnow's Formulae for Differential Refraction in Distance and Position-Angle [PDF]
, 1889 Warren H. Finlay
openalex +1 more source