Browsing Ohio State University Research and Scholarship by Title
Now showing results 804-823 of 833
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Use of an integrated clinical trial database to evaluate the effect of timing of drotrecogin alfa (activated) treatment in severe sepsis
Vincent, Jean-Louis; O'Brien, James Jr.; Wheeler, Arthur; Wittebole, Xavier; Garg, Rekha; Trzaskoma, Benjamin L.; Sundin, David P. ( 2006-05-09 )Introduction: Several studies have indicated that early identification and treatment of patients with severe sepsis using standard supportive care improves outcomes. Earlier treatment with drotrecogin alfa (activated) ... -
Usefulness of Ultrahigh Resolution Microstructural Studies for Understanding Localized Corrosion Behavior of Al Alloys
Kappes, M.; Kovarik, L.; Mills, M. J.; Frankel, G. S.; Miller, M. K. ( 2008-06-18 )The corrosion behavior of different tempers of two aluminum alloys, AA7050 and an experimental Al–Mg–Cu–Si alloy, was studied in NaCl solution by anodic polarization and scanning electron microscopy and was correlated with ... -
Using the information embedded in the testing sample to break the limits caused by the small sample size in microarray-based classification
Zhu, Manli; Martinez, Aleix M. ( 2008-06-14 )Background: Microarray-based tumor classification is characterized by a very large number of features (genes) and small number of samples. In such cases, statistical techniques cannot determine which genes are correlated ... -
Using Ultra Long Period Cepheids to Extend the Cosmic Distance Ladder to 100 Mpc and Beyond
Bird, Jonathan; Stanek, K. Z.; Prieto, José L. ( 2009-04-20 )We examine the properties of 18 long period (80-210 days) and very luminous (median absolute magnitude of M_I = –7.86 and M_V = –6.97) Cepheids to see if they can serve as a useful distance indicator. We find that these ... -
Vacancy defect and defect cluster energetics in ion-implanted ZnO
Dong, Yufeng; Tuomisto, F.; Svensson, B. G.; Kuznetsov, A. Yu.; Brillson, Leonard J. ( 2010-02-01 )We have used depth-resolved cathodoluminescence, positron annihilation, and surface photovoltage spectroscopies to determine the energy levels of Zn vacancies and vacancy clusters in bulk ZnO crystals. Doppler broadening-measured ... -
Variability of Fe II Emission Features in the Seyfert 1 Galaxy NGC 5548
Vestergaard, Marianne; Peterson, Bradley M. ( 2005-06-01 )We study the low-contrast Fe II emission blends in the ultraviolet (1250-2200 Å) and optical (4000-6000 Å) spectra of the Seyfert 1 galaxy NGC 5548 and show that these features vary in flux and that these variations are ... -
Variability of Luminous Stars in the Large Magellanic Cloud Using 10 Years of ASAS Data
Szczygieł, D. M.; Stanek, K. Z.; Bonanos, A. Z.; Pojmański, G.; Pilecki, B.; Prieto, J. L. ( 2010-07 )Motivated by the detection of a recent outburst of the massive luminous blue variable LMC-R71, which reached an absolute magnitude M_V = –9.3 mag, we undertook a systematic study of the optical variability of 1268 massive ... -
Variations in air quality of new Ohio dairy facilities with natural ventilation systems
Zhao, L. Y.; Brugger, M. F.; Manuzon, R. B.; Arnold, G.; Imerman, E. ( 2007-05 )As dairy operations evolve towards larger, concentrated facilities, air quality on and around the dairy farms becomes a concern. Data on air quality in and around large dairy facilities are insufficient and therefore very ... -
Very-high-energy gamma-ray signal from nuclear photodisintegration as a probe of extragalactic sources of ultrahigh-energy nuclei
Murase, Kohta; Beacom, John F. ( 2010-08-19 )It is crucial to identify the ultrahigh-energy cosmic-ray sources and probe their unknown properties. Recent results from the Pierre Auger Observatory favor a heavy nuclear composition for the ultrahigh-energy cosmic rays. ... -
Vestibular Stimulation for ADHD: Randomized Controlled Trial of Comprehensive Motion Apparatus
Arnold, L. Eugene; Crowl, Lindsay; Bozzolo, Hernan; Peruggia, Mario; Ramadan, Yaser; Bornstein, Robert; Hollway, Jill A.; Thompson, Susan; Malone, Krista; Hall, Kristy L.; Shelton, Sara B.; Bozzolo, Dawn R.; Cook, Amy; Clark, David L. ( 2008 )Objective: This research evaluates effects of vestibular stimulation by Comprehensive Motion Apparatus (CMA) in ADHD. Method: Children ages 6 to 12 (48 boys, 5 girls) with ADHD were randomized to thrice-weekly ... -
Viscosity from elliptic flow: Clearing the path towards precision
Heinz, Ulrich; Moreland, John Scott; Song, Huichao ( 2009-12-08 )Using viscous relativistic hydrodynamics we show that systematic studies of the impact parameter dependence of the eccentricity-scaled elliptic flow ν_2/ɛ can distinguish between different models for the calculation of the ... -
Viscosity of strongly interacting quantum fluids: Spectral functions and sum rules
Taylor, Edward; Randeria, Mohit ( 2010-05-11 )The viscosity of strongly interacting systems is a topic of great interest in diverse fields. We focus here on the bulk and shear viscosities of nonrelativistic quantum fluids, with particular emphasis on strongly interacting ... -
Vortex fractionalization in a Josephson ladder
Tornes, I.; Stroud, D. ( 2005-12-30 )We show numerically that, in a Josephson ladder with periodic boundary conditions and subject to a suitable transverse magnetic field, a vortex excitation can spontaneously breakup into two or more fractional excitations. ... -
Vortices in Superfluid Fermi Gases through the BEC to BCS Crossover
Sensarma, Rajdeep; Randeria, Mohit; Ho, Tin-Lun ( 2006-03-09 )We have analyzed a single vortex at T=0 in a 3D superfluid atomic Fermi gas across a Feshbach resonance. On the BCS side, the order parameter varies on two scales: k_F^-1 and the coherence length ξ, while only variation ... -
Was Gramsci a Marxist?
Wainwright, Joel ( 2010-09-15 )This paper argues that Antonio Gramsci's theory of hegemony is rooted in Marx's theory of value. Although value theory, and Marx's economic writings more generally, are by no means central themes of the Prison Notebooks, ... -
The Weak Absorbing Outflow in AGN Mrk 279: Evidence of Supersolar Metal Abundances
Fields, Dale L.; Mathur, Smita; Krongold, Yair; Williams, Rik; Nicastro, Fabrizio ( 2007-09-10 )We present analysis and photoionization modeling of the Chandra high-resolution spectrum of Mrk 279. There is clear evidence of an absorbing outflow that is best fit by a two-component model: one with a low-ionization ... -
Weight and Leptin Changes Among Risperidone-Treated Youths With Autism: 6-Month Prospective Data
Martin, Andrés; Scahill, Lawrence; Anderson, George M.; Aman, Michael; Arnold, L. Eugene; McCracken, James; McDougle, Christopher J.; Tierney, Elaine; Chuang, Shirley; Vitiello, Benedetto ( 2004 )Objective: The authors examined the developmental impact and temporal characteristics of risperidone-associated weight change. Method: Weight change was measured for 63 children and adolescents with autism treated with ... -
Wide-Field Chandra X-Ray Observations of Active Galactic Nuclei in Abell 85 and Abell 754
Sivakoff, Gregory R.; Martini, Paul; Zabludoff, Ann I.; Kelson, Daniel D.; Mulchaey, John S. ( 2008-08-01 )To better understand the mechanism or mechanisms that lead to AGN activity today, we measure the X-ray AGN fraction in a new sample of nearby clusters and examine how it varies with galaxy properties, projected clustercentric ... -
The word landscape of the non-coding segments of the Arabidopsis thaliana genome
Lichtenberg, Jens; Yilmaz, Alper; Welch, Joshua D.; Kurz, Kyle; Liang, Xiaoyu; Drews, Frank; Ecker, Klaus; Lee, Stephen S.; Geisler, Matt; Grotewold, Erich; Welch, Lonnie R. ( 2009-10-08 )Background: Genome sequences can be conceptualized as arrangements of motifs or words. The frequencies and positional distributions of these words within particular non-coding genomic segments provide important insights ... -
WPP-Domain Proteins Mimic the Activity of the HSC70-1 Chaperone in Preventing Mistargeting of RanGAP1-Anchoring Protein WIT1
Brkljacic, Jelena; Zhao, Qiao; Meier, Iris ( 2009-09 )Arabidopsis (Arabidopsis thaliana) tryptophan-proline-proline (WPP)-domain proteins, WPP1 and WPP2, are plant-unique, nuclear envelope-associated proteins of unknown function. They have sequence similarity to the nuclear ...