Browsing Ohio State University Research and Scholarship by Title
Now showing results 328-347 of 833
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Hadron Mass Spectrum from Lattice QCD
Majumder, Abhijit; Müller, Berndt ( 2010-12-13 )Finite temperature lattice simulations of quantum chromodynamics (QCD) are sensitive to the hadronic mass spectrum for temperatures below the “critical” temperature T_c≈160 MeV. We show that a recent precision determination ... -
Hadronic observables from Au+Au collisions at √s_NN=200 GeV and Pb+Pb collisions at √s_NN=5.5 TeV from a simple kinematic model
Humanic, T. J. ( 2009-04-09 )A simple kinematic model based on superposition of p+p collisions, relativistic geometry, and final-state hadronic rescattering is used to calculate various hadronic observables in √s_NN=200 GeV Au+Au collisions and √s_NN=5.5 ... -
Halo Star Lithium Depletion
Pinsonneault, M. H.; Walker, T. P.; Steigman, G.; Narayanan, Vijay K. ( 1999-12-10 )The depletion of lithium during the pre-main-sequence and main-sequence phases of stellar evolution plays a crucial role in the comparison of the predictions of big bang nucleosynthesis with the abundances observed in halo ... -
Heavy-quark potential at finite temperature using the holographic correspondence
Albacete, Javier L.; Kovchegov, Yuri V.; Taliotis, Anastasios ( 2008-12-11 )We revisit the calculation of a heavy-quark potential in N = 4 supersymmetric Yang-Mills theory at finite temperature using the AdS/CFT correspondence. As is widely known, the potential calculated in the pioneering works ... -
Heritable clustering and pathway discovery in breast cancer integrating epigenetic and phenotypic data
Wang, Zailong; Yan, Pearlly; Potter, Dustin; Charis, Eng; Huang, Tim H-M.; Lin, Shili ( 2007-02-01 )Background: In order to recapitulate tumor progression pathways using epigenetic data, we developed novel clustering and pathway reconstruction algorithms, collectively referred to as heritable clustering. This approach ... -
Heterotic road to the MSSM with R parity
Lebedev, Oleg; Nilles, Hans Peter; Raby, Stuart; Ratz, Michael; Vaudrevange, Patrick K. S.; Wingerter, Akın; Ramos-Sanchez, Saul ( 2008-02-29 )In a previous paper, referred to as a “Mini-Landscape” search, we explored a “fertile patch” of the heterotic landscape based on a Z_6-II orbifold with SO(10) and E_6 local grand unified theory structures. In the present ... -
Hexadecapole Approximation in Planetary Microlensing
Gould, Andrew ( 2008-07-10 )The frequency of microlensing planet detections, particularly in difficult-to-model high-magnification events, is increasing. Their analysis can require tens of thousands of processor hours or more, primarily because of ... -
High-Energy Cutoff in the Spectrum of Strong-Field Nonsequential Double Ionization
Parker, J. S.; Doherty, B. J. S.; Taylor, K. T.; Schultz, K. D.; Blaga, C. I.; DiMauro, L. F. ( 2006-04-06 )Electron energy distributions of singly and doubly ionized helium in an intense 390 nm laser field have been measured at two intensities (0.8 PW/cm^2 and 1.1 PW/cm^2, where PW≡1015 W/cm^2). Numerical solutions of the ... -
High-field magnetocrystalline anisotropic resistance effect in (Ga,Mn)As
Wu, D.; Wei, Peng; Johnston-Halperin, E.; Awschalom, D. D.; Shi, Jing ( 2008-03-17 )As the magnetization rotates in the (001) plane of epitaxial (Ga,Mn)As films, we observe both two- and fourfold oscillations of comparable magnitude in the longitudinal resistivity. This behavior is different from the usual ... -
High-Redshift Galaxies in Cold Dark Matter Models
Weinberg, David H.; Hernquist, Lars; Katz, Neal ( 2002-05-20 )We use hydrodynamic cosmological simulations to predict the star formation properties of high-redshift galaxies (z = 2-6) in five variants of the inflationary cold dark matter scenario, paying particular attention to z = ... -
A High-Resolution Spectrum of the Highly Magnified Bulge G Dwarf MOA-2006-BLG-099S
Johnson, Jennifer A.; Gaudi, B. Scott; Sumi, Takahiro; Bond, Ian A.; Gould, Andrew ( 2008-09-20 )We analyze a high-resolution spectrum of a microlensed G dwarf in the Galactic bulge, acquired when the star was magnified by a factor of 110. We measure a spectroscopic temperature, derived from the wings of the Balmer ... -
High-temperature behaviour of the helium-like Kα G ratio: the effect of improved recombination rate coefficients for calcium, iron and nickel
Nahar, Sultana Nurun; Oelgoetz, J.; Fontes, C. J.; Zhang, H. L.; Montenegro, M.; Pradhan, A. K. ( 2007 )It is shown that above the temperature of maximum abundance, recombination rates into the excited states of He-like ions that are calculated using earlier, more approximate methods differ markedly from rates obtained from ... -
Hubble Space Telescope Imaging of Bright Lyman Break Galaxy Candidates from the Sloan Digital Sky Survey: Not LBGS After All
Bentz, Misty C.; Pogge, Richard W.; Osmer, Patrick S. ( 2008-07-13 )We present deep Hubble Space Telescope ACS and NICMOS images of six bright Lyman break galaxy candidates that were previously discovered in the Sloan Digital Sky Survey. We find that five of the objects are consistent with ... -
Hubble Space Telescope Imaging of the Circumnuclear Environments of the CfA Seyfert Galaxies: Nuclear Spirals and Fueling
Pogge, Richard W.; Martini, Paul ( 2002-04-20 )We present archival Hubble Space Telescope (HST) images of the nuclear regions of 43 of the 46 Seyfert galaxies found in the volume-limited, spectroscopically complete CfA Redshift Survey sample. Using an improved method ... -
Hubble Space Telescope Observations of the CfA Seyfert 2 Galaxies: The Fueling of Active Galactic Nuclei
Martini, Paul; Pogge, Richard W. ( 1999-12 )We present an investigation of possible fueling mechanisms operating in the inner kiloparsec of Seyfert galaxies. We analyze visible and near-infrared Hubble Space Telescope images of 24 Seyfert 2 galaxies from the CfA ... -
Human arachnoid granulations Part I: a technique for quantifying area and distribution on the superior surface of the cerebral cortex
Grzybowski, Deborah M.; Herderick, Edward E.; Kapoor, Kapil G.; Holman, David W.; Katz, Steven E. ( 2007-07-16 )Background: The arachnoid granulations (AGs) are herniations of the arachnoid membrane into the dural venous sinuses on the surface of the brain. Previous morphological studies of AGs have been limited in scope and only ... -
Human T lymphotropic virus type-1 p30II alters cellular gene expression to selectively enhance signaling pathways that activate T lymphocytes
Michael, Bindhu; Nair, Amrithraj; Hiraragi, Hajime; Shen, Lei; Feuer, Gerold; Boris-Lawrie, Kathleen; Lairmore, Michael D. ( 2004-11-23 )Background: Human T-lymphotropic virus type-1 (HTLV-1) is a deltaretrovirus that causes adult T-cell leukemia/lymphoma and is implicated in a variety of lymphocyte-mediated disorders. HTLV-1 contains both regulatory and ... -
Human T-cell leukemia virus type 2 post-transcriptional control protein p28 is required for viral infectivity and persistence in vivo
Yamamoto, Brenda; Li, Min; Kesic, Matthew; Younis, Ihab; Lairmore, Michael D.; Green, Patrick L. ( 2008-05-12 )Background: Human T-cell leukemia virus (HTLV) type 1 and type 2 are related but distinct pathogenic complex retroviruses. HTLV-1 is associated with adult T-cell leukemia and a variety of immune-mediated disorders including ... -
Human T-lymphotropic virus type-1 p30 alters cell cycle G2 regulation of T lymphocytes to enhance cell survival
Datta, Antara; Silverman, Lee; Phipps, Andrew J.; Hiraragi, Hajime; Ratner, Lee; Lairmore, Michael D. ( 2007-07-16 )Background: Human T-lymphotropic virus type-1 (HTLV-1) causes adult T-cell leukemia/ lymphoma and is linked to a number of lymphocyte-mediated disorders. HTLV-1 contains both regulatory and accessory genes in four pX ... -
Hydrogen bond topology and the ice VII/VIII and Ih/XI proton ordering phase transitions
Knight, Chris; Singer, Sherwin J.; Kuo, Jer-Lai; Hirsch, Tomas K.; Ojamäe, Lars; Klein, Michael L. ( 2006-05-16 )Ice Ih, ordinary ice at atmospheric pressure, is a proton-disordered crystal that when cooled under special conditions is believed to transform to ferroelectric proton-ordered ice XI, but this transformation is still subject ...