Browsing Ohio State University Research and Scholarship by Title
Now showing results 624-643 of 832
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R-current DIS on a shock wave: Beyond the eikonal approximation
Kovchegov, Yuri V. ( 2010-09-08 )We find the deep inelastic scattering (DIS) structure functions at strong coupling by calculating R-current correlators on a finite-size shock wave using AdS/CFT correspondence. We improve on the existing results in the ... -
Radiative Energy Loss in a Finite Dynamical QCD Medium
Djordjevic, Magdalena; Heinz, Ulrich ( 2008-07-10 )The radiative energy loss of a quark jet traversing a finite size QCD medium with dynamical constituents is calculated to first order in opacity. Although finite size corrections reduce the energy loss relative to an ... -
Radiative heavy quark energy loss in a dynamical QCD medium
Djordjevic, Magdalena; Heinz, Ulrich ( 2008-02-20 )The computation of radiative energy loss in a dynamically screened QCD medium is a key ingredient in obtaining reliable predictions for jet quenching in ultrarelativistic heavy-ion collisions. We calculate, to first order ... -
The Radius-Luminosity Relationship For Active Galactic Nuclei: The Effect of Host-Galaxy Starlight On Luminosity Measurements. II. The Full Sample of Reverberation-Mapped AGNs
Bentz, Misty C.; Peterson, Bradley M.; Netzer, Hagai; Pogge, Richard W.; Vestergaard, Marianne ( 2009-05-20 )We present high-resolution Hubble Space Telescope images of all 35 active galactic nuclei (AGNs) with optical reverberation-mapping results, which we have modeled to create a nucleus-free image of each AGN host galaxy. ... -
Rainfall sequence effects on phosphorus loss in surface runoff from pastures that received poultry litter application
Demissie, T.; Storm, D. E.; Friend, M. S.; Basta, N. T.; Payton, M. E.; Smolen, M. D.; Zhang, H. ( 2010-07 )Land application of poultry litter to pasture elevates the concentration of phosphorus in surface runoff and it is becoming an increasing problem in sensitive water bodies. The objectives of this study were to assess the ... -
Rapid phase-modulated water-excitation steady-state free precession for fat-suppressed cine cardiovascular MR
Lin, Hung Y.; Raman, Subha; Chung, Yiu C.; Simonetti, Orlando ( 2008-05-13 )BACKGROUND:The purpose of this article is to describe a steady-state free precession (SSFP) sequence for fat-suppressed cine cardiovascular magnetic resonance (CMR). A rapid phase-modulated binomial water-excitation (WE) ... -
The Rate of the Reaction between C_2 H and C_2 H_2 at Interstellar Temperatures
Herbst, Eric; Woon, David E. ( 1997-11-01 )The reaction between the radical C_2 H and the stable hydrocarbon C_2 H_2 is one of the simplest neutral-neutral hydrocarbon reactions in chemical models of dense interstellar clouds and carbon-rich circumstellar shells. ... -
Reaction Time Distribution Analysis of Neuropsychological Performance in an ADHD Sample
Hervey, Aaron S.; Epstein, Jeffery N.; Curry, John F.; Tonev, Simon; Arnold, L. Eugene; Conners, C. Keith; Hinshaw, Stephen P.; Swanson, James M.; Hechtman, Lily ( 2006 )Differences in reaction time (RT) variability have been documented between children with and without Attention Deficit Hyperactivity Disorder (ADHD). Most previous research has utilized estimates of normal distributions ... -
Real-time cine and myocardial perfusion with treadmill exercise stress cardiovascular magnetic resonance in patients referred for stress SPECT
Raman, Subha V.; Dickerson, Jennifer A.; Jekic, Mihaela; Foster, Eric L.; Pennell, Michael L.; McCarthy, Beth; Simonetti, Orlando P. ( 2010-07-12 )Background: To date, stress cardiovascular magnetic resonance (CMR) has relied on pharmacologic agents, and therefore lacked the physiologic information available only with exercise stress. Methods: 43 patients age 25 ... -
Recent shoaling of the nutricline and thermocline in the western tropical Pacific
Williams, B.; Grottoli, A. G. ( 2010 )Long records of subsurface ocean observations are key to constrain our understanding of the climate response of the tropical Pacific to increasing greenhouse gases. Due to the lack of continuous ocean observations, ... -
Recently duplicated maize R2R3 Myb genes provide evidence for distinct mechanisms of evolutionary divergence after duplication
Dias, Anusha; Braun, Edward L.; McMullen, Michael D.; Grotewold, Erich ( 2003-01 )R2R3 Myb genes are widely distributed in the higher plants and comprise one of the largest known families of regulatory proteins. Here, we provide an evolutionary framework that helps explain the origin of the plant-specific ... -
Reciprocal regulation of nuclear factor kappa B and its inhibitor ZAS3 after peripheral nerve injury
Wu, Lai-Chu; Goettl, Virginia M.; Madiai, Francesca; Hackshaw, Kevin V.; Hussain, Syed-Rehan A. ( 2006-01-12 )Background: NF-κB binds to the κB motif to regulate transcription of genes involved in growth, immunity and inflammation, and plays a pivotal role in the production of pro-inflammatory cytokines after nerve injuries. ... -
Recombination rate coefficients for KLL dielectronic satellite lines of Fe XXV and Ni XXVII
Nahar, Sultana Nurun; Oelgoetz, J.; Pradhan, A. K. ( 2009 )The unified method for total electron-ion recombination is extended to study the dielectronic satellite (DES) lines. These lines, formed from radiative decay of autoionizing states, are highly sensitive temperature diagnostics ... -
A Recommendation for Naming Transcription Factor Proteins in the Grasses
Gray, John; Bevan, Michael; Brutnell, Thomas; Buell, C. Robin; Cone, Karen; Hake, Sarah; Jackson, David; Kellogg, Elizabeth; Lawrence, Carolyn; McCouch, Susan; Mockler, Todd; Moose, Stephen; Paterson, Andrew; Peterson, Thomas; Rokshar, Daniel; Souza, Glaucia Mendes; Springer, Nathan; Stein, Nils; Timmermans, Marja; Wang, Guo-Liang; Grotewold, Erich ( 2009-01 ) -
Reconciling grand unification with strings by anisotropic compactifications
Dundee, Ben; Raby, Stuart; Wingerter, Akin ( 2008-09-11 )We analyze gauge coupling unification in the context of heterotic strings on anisotropic orbifolds. This construction is very much analogous to effective five-dimensional orbifold grand unified theory field theories. Our ... -
Reconstruction Control of Magnetic Properties during Epitaxial Growth of Ferromagnetic Mn_3-δGa on Wurtzite GaN(0001)
Lu, Erdong; Ingram, David C.; Smith, Arthur R.; Knepper, J. W.; Yang, F. Y. ( 2006-10-02 )Binary ferromagnetic Mn_3-δGa (1.2<3-δ≤1.5) crystalline thin films have been epitaxially grown on wurtzite GaN(0001) surfaces using rf N-plasma molecular beam epitaxy. The film structure is face-centered tetragonal with ... -
Regulation of Freezing Tolerance and Flowering in Temperate Cereals: The VRN-1 Connection
Dhillon, Taniya; Pearce, Stephen P.; Stockinger, Eric J.; Distelfeld, Assaf; Li, Chengxia; Knox, Andrea K.; Vashegyi, Ildiko; Vagujfalvi, Attila; Galiba, Gabor; Dubcovsky, Jorge ( 2010-08 )In winter wheat (Triticum spp.) and barley (Hordeum vulgare) varieties, long exposures to nonfreezing cold temperatures accelerate flowering time (vernalization) and improve freezing tolerance (cold acclimation). However, ... -
Relative stability of extended interstitial defects in silicon: First-principles calculations
Park, Hyoungki; Wilkins, John W. ( 2009-06-17 )Interstitials stored in {311} or {111} habit planes form rows of interstitial chains elongated in ⟨011⟩ direction. Exploiting the large aspect ratio to treat chains as infinite, first-principles calculations of large ... -
Relativistic and correlation effects in electron impact excitation of forbidden transitions of O II
Montenegro, Maximiliano; Eissner, Werner; Nahar, Sultana Nurun; Pradhan, Anil K. ( 2006 )We investigate relativistic and correlation effects in electron impact excitation of singly ionized oxygen using the Breit-Pauli R-matrix method. The intermediate coupling close-coupling calculations are carried out using ... -
Relativistic approach for e^± scattering from argon
Nahar, Sultana Nurun; Wadehra, J. M. ( 1991-02 )Differential and integrated elastic, integrated total cross sections as well as various polarization parameters-the spin polarization P and the parameters T and U describing the change in the polarization vector during ...