DSpace Community:http://hdl.handle.net/2440/112016-07-27T21:08:15Z2016-07-27T21:08:15ZRelating intercellular variability in nanoparticle uptake with biological consequence: a quantitative x-ray fluorescence study for radiosensitization of cellsTurnbull, T.Douglass, M.Paterson, D.Bezak, E.Thierry, B.Kempson, I.http://hdl.handle.net/2440/1002492016-07-27T01:07:38Z2015-01-01T00:00:00ZTitle: Relating intercellular variability in nanoparticle uptake with biological consequence: a quantitative x-ray fluorescence study for radiosensitization of cells
Author: Turnbull, T.; Douglass, M.; Paterson, D.; Bezak, E.; Thierry, B.; Kempson, I.
Abstract: Internalized gold nanoparticles were quantified in large numbers of individual prostate cancer cells using large area synchrotron X-ray fluorescence microscopy. Cells were also irradiated with a 6 MV linear accelerator to assess the biological consequence of radiosensitization with gold nanoparticles. A large degree of heterogeneity in nanoparticle uptake between cells resulted in influenced biological effect.2015-01-01T00:00:00ZInfrared fibersTao, G.Ebendorff-Heidepriem, H.Stolyarov, A.M.Danto, S.Badding, J.V.Fink, Y.Ballato, J.Abouraddy, A.F.http://hdl.handle.net/2440/1002482016-07-27T01:06:09Z2015-01-01T00:00:00ZTitle: Infrared fibers
Author: Tao, G.; Ebendorff-Heidepriem, H.; Stolyarov, A.M.; Danto, S.; Badding, J.V.; Fink, Y.; Ballato, J.; Abouraddy, A.F.
Abstract: Abstract not available2015-01-01T00:00:00ZFinite-volume and partial quenching effects in the magnetic polarizability of the neutronHall, J.M.M.Leinweber, D.B.Young, R.D.http://hdl.handle.net/2440/1002402016-07-27T00:52:58Z2014-01-01T00:00:00ZTitle: Finite-volume and partial quenching effects in the magnetic polarizability of the neutron
Author: Hall, J.M.M.; Leinweber, D.B.; Young, R.D.
Abstract: There has been much progress in the experimental measurement of the electric and magnetic polarizabilities of the nucleon. Similarly, lattice QCD simulations have recently produced dynamical QCD results for the magnetic polarizability of the neutron approaching the chiral regime. In order to compare the lattice simulations with experiment, calculation of partial quenching and finite-volume effects is required prior to an extrapolation in quark mass to the physical point. These dependencies are described using chiral effective field theory. Corrections to the partial quenching effects associated with the sea- quark-loop electric charges are estimated by modeling corrections to the pion cloud. These are compared to the uncorrected lattice results. In addition, the behavior of the finite-volume corrections as a function of pion mass is explored. Box sizes of approximately 7 fm are required to achieve a result within 5% of the infinite-volume result at the physical pion mass. A variety of extrapolations are shown at different box sizes, providing a benchmark to guide future lattice QCD calculations of the magnetic polarizabilities. A relatively precise value for the physical magnetic polarizability of the neutron is presented, βn= 1.93 (11)stat (11)sys × 10⁻⁴ fm³ , which is in agreement with current experimental results2014-01-01T00:00:00ZElectromagnetic contribution to charge symmetry violation in parton distributionsWang, X.G.Thomas, A.W.Young, R.D.http://hdl.handle.net/2440/1000802016-07-08T00:58:39Z2016-01-01T00:00:00ZTitle: Electromagnetic contribution to charge symmetry violation in parton distributions
Author: Wang, X.G.; Thomas, A.W.; Young, R.D.
Abstract: We report a calculation of the combined effect of photon radiation and quark mass differences on charge symmetry violation (CSV) in the parton distribution functions of the nucleon. Following a recent suggestion of Martin and Ryskin, the initial photon distribution is calculated in terms of coherent radiation from the proton as a whole, while the effect of the quark mass difference is based on a recent lattice QCD simulation. The distributions are then evolved to a scale at which they can be compared with experiment by including both QCD and QED radiation. Overall, at a scale of 5 GeV², the total CSV effect on the phenomenologically important difference between the d and u-quark distributions is some 20% larger than the value based on quark mass differences alone. In total these sources of CSV account for approximately 40% of the NuTeV anomaly.2016-01-01T00:00:00Z