Browsing Ohio State University Research and Scholarship by Title
Now showing results 633-652 of 833
-
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 ... -
Relativistic close-coupling calculations for photoionization and recombination of Ne-like Fe XVII
Nahar, Sultana Nurun; Zhang, Hong Lin; Pradhan, Anil K. ( 2001 )Relativistic and channel coupling effects in photoionization and unified electronic recombination of Fe XVII are demonstrated with an extensive 60-level close-coupling calculation using the Breit-Pauli R-matrix method. A ... -
Relativistic Fine Structure and Resonance Effects in Electron-Ion Recombination and Excitation of (e + C IV)
Nahar, Sultana Nurun; Pradhan, Anil K.; Chen, Guo Xin; Zhang, Hong Lin ( 2001-10-29 )Relativistic close coupling calculations are reported for unified electronic recombination of (e + C IV) including nonresonant and resonant recombination processes, radiative, and dielectronic recombination (RR and DR). ... -
Relativistic fine structure oscillator strengths for Li-like ions: C IV - Si XII, S XIV, Ar XVI, Ca XVIII, Ti XX, Cr XXII, and Ni XXVI
Nahar, Sultana Nurun ( 2002-07 )Ab initio calculations including relativistic effects in the Breit-Pauli R-matrix (BPRM) method are reported for fine structure energy levels and oscillator strengths upto n = 10 and 0 ≤ l ≤ 9 for 15 Li-like ions: C IV, N ... -
Relativistic laser channeling in plasmas for fast ignition
Lei, A. L.; Pukhov, A.; Kodama, R.; Yabuuchi, T.; Adumi, K.; Endo, K.; Freeman, R. R.; Habara, H.; Kitagawa, Y.; Kondo, K.; Kumar, G. R.; Matsuoka, T.; Mima, K.; Nagatomo, H.; Norimatsu, T.; Shorokhov, O.; Snavely, R.; Yang, X. Q.; Zheng, J.; Tanaka, K. A. ( 2007-12-18 )We report an experimental observation suggesting plasma channel formation by focusing a relativistic laser pulse into a long-scale-length preformed plasma. The channel direction coincides with the laser axis. Laser light ... -
Relativistic photoionization cross sections for C II
Nahar, Sultana Nurun ( 2002 )The first measurement of highly resolved photoionization cross sections of the ground state of C II was reported recently by Kjeldsen et al. [Astrophys. J. 524, L143 (1999)]. The observed resonance features showed good ... -
Removal of feedback inhibition of Delta(1)-pyrroline-5-carboxylate synthetase results in increased proline accumulation and protection of plants from osmotic stress
Hong, Zonglie; Lakkineni, Karuna; Zhang, Zhongming; Verma, Desh Pal S. ( 2000-04 )The Delta(1)-pyrroline-5-carboxylate synthetase (P5CS; EC not assigned) is the rate-limiting enzyme in proline (Pro) biosynthesis in plants and is subject to feedback inhibition by Pro. It has been suggested that the ... -
Resolution and accuracy of resonances in R-matrix cross sections
Delahaye, Franck; Nahar, Sultana Nurun; Pradhan, Anil K.; Zhang, Hong Lin ( 2004 )We investigate the effect of resonances in photoionization and recombination cross sections computed using the R-matrix method. Photoionization and recombination rates derived from high-resolution cross sections for oxygen ... -
Resolution of the MACHO-LMC-5 Puzzle: The Jerk-Parallax Microlens Degeneracy
Gould, Andrew ( 2004-05-01 )By extending the constant-acceleration analysis of Smith, Mao, & Paczyński to include jerk, I show that microlens parallax measurements are subject to a four-fold discrete degeneracy. The new degeneracy is characterized ...