Catherine Emma Jones

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PURPOSES To determine axial, vertical, and horizontal eye dimensions in myopic and emmetropic eyes by using magnetic resonance imaging (MRI) and to relate these to different ocular expansion models of myopia development. METHODS The internal length (cornea to retina), height and width (both retina to retina) were measured in emmetropic and myopic eyes (up(More)
PURPOSE To determine and compare the shapes of the retinas of emmetropic and myopic eyes. METHODS Nonrotationally symmetrical ellipsoids were mathematically fitted to the retinal surfaces of 21 emmetropic and 66 myopic eyes (up to -12 D) of participants aged 18 to 36 years (mean, 25.5) using transverse axial and sagittal images derived from magnetic(More)
We report a new measurement of the parity-violating asymmetry in elastic electron scattering from the proton at backward scattering angles. This asymmetry is sensitive to the strange magnetic form factor of the proton as well as electroweak axial radiative corrections. The new measurement of A ෇ 24.92 6 0.61 6 0.73 ppm provides a significant constraint on(More)
The inclusive A(e,eЈ) cross section for xӍ1 was measured on 2 H, C, Fe, and Au for momentum transfers Q 2 from 1 to 6.8 ͑GeV/c) 2. The scaling behavior of the data was examined in the region of transition from y scaling to x scaling. Throughout this transitional region, the data exhibit ␰ scaling, reminiscent of the Bloom-Gilman duality seen in free nucleon(More)
Susceptibility artifacts due to metallic prostheses are a major problem in clinical magnetic resonance imaging. We theoretically and experimentally analyze slice distortion arising from susceptibility differences in a phantom consisting of a stainless steel ball bearing embedded in agarose gel. To relate the observed image artifacts to slice distortion, we(More)
A separation of the longitudinal and transverse 12 C(e,eЈp) cross sections in the quasifree region has been performed in parallel kinematics at Q 2 of 0.64 and 1.8 GeV 2 for initial proton momentum Ͻ80 MeV. The separated transverse and longitudinal spectral functions at Q 2 ϭ0.64 GeV 2 show significant differences for missing energy between 25 and 60 MeV(More)
We present the results of a measurement of the spin-dependent asymmetry in 3 g (i , e ') inelastic scattering at kinematics on the low-energy transfer side of the quasielastic peak, including the region near the breakup threshold. Comparison with existing calculation., based upon the plane wave impulse approximation shows significant deviation between the(More)