Browsing Ohio State University Research and Scholarship by Title

Cadmium measurements in coral skeleton using isotope dilution-inductively coupled plasma-mass spectrometry

Matthews, K. A.; McDonough, W.; Grottoli, A. G. ( 2006-11-25 )

Here a method for the precise analysis of Cd/Ca in coral skeleton using inductively coupled plasma- mass spectrometry (ICP-MS) is presented. Isotope dilution and gravimetric standards with internal standardization were ...

Caffeine Versus Methylphenidate and d-Amphetamine in Minimal Brain Dysfunction: A Double-Blind Comparison

Huestis, Robert D.; Arnold, L. Eugene; Smeltzer, Donald J. ( 1975 )

The authors compared the efficacy of caffeine, methylphenidate, and d-amphetamine in children with minimal brain dysfunction using a double-blind crossover design. The slight improvement with caffeine was not significantly ...

Calculating expected DNA remnants from ancient founding events in human population genetics

Stacey, Andrew; Sheffield, Nathan C.; Crandall, Keith A. ( 2008-10-17 )

Background: Recent advancements in sequencing and computational technologies have led to rapid generation and analysis of high quality genetic data. Such genetic data have achieved wide acceptance in studies of historic ...

Calculations on the Formation Rates and Mechanisms for C_n H Anions in Interstellar and Circumstellar Media

Herbst, Eric; Osamura, Yoshihiro ( 2008-06 )

The rate coefficients for the radiative attachment reactions between the radicals C_n H (n = 2-8) and electrons have been calculated with the aid of quantum chemistry using a phase-space theory in which strong coupling ...

Can Correlations Drive a Band Insulator Metallic?

Garg, Arti; Krishnamurthy, H. R.; Randeria, Mohit ( 2006-07-26 )

We analyze the effects of the on-site Coulomb repulsion U on a band insulator using dynamical mean field theory (DMFT). We find the surprising result that the gap is suppressed to zero at a critical U_c1 and remains zero ...

Can hadronic rescattering explain the "jet quenching" at relativistic energies?

Hardtke, David; Humanic, Thomas J. ( 2005-03-15 )

Recent relativistic heavy-ion collider (RHIC) data have shown novel nuclear modifications of moderate- to high-p_T particle production in central Au+Au collisions, including a suppression of hadron production and a ...

Can Heavy WIMPs Be Captured by the Earth?

Gould, Andrew; Alam, S. M. Khairul ( 2001-03-01 )

If weakly interacting massive particles (WIMPs) in bound solar orbits are systematically driven into the Sun by solar system resonances (as Farinella and coworkers have shown is the case for many Earth-crossing asteroids), ...

Can One Determine the Underlying Fermi Surface in the Superconducting State of Strongly Correlated Systems?

Sensarma, Rajdeep; Randeria, Mohit; Trivedi, Nandini ( 2007-01-08 )

The question of determining the underlying Fermi surface (FS) that is gapped by superconductivity (SC) is of central importance in strongly correlated systems, particularly in view of angle-resolved photoemission experiments. ...

Can string theory predict the Weinberg angle?

Raby, Stuart; Wingerter, Akın ( 2007-10-26 )

We investigate whether the hypercharge assignments in the standard model can be interpreted as a hint at grand unification in the context of heterotic string theory. Our analysis is a follow-up to the recent mini-landscape ...

The capacity for multistability in small gene regulatory networks

Siegal-Gaskins, Dan; Grotewold, Erich; Smith, Gregory D. ( 2009-09-21 )

Background: Recent years have seen a dramatic increase in the use of mathematical modeling to gain insight into gene regulatory network behavior across many different organisms. In particular, there has been considerable ...

Cardiac function and myocardial perfusion immediately following maximal treadmill exercise inside the MRI room

Jekic, Mihaela; Foster, Eric; Ballinger, Michelle; Raman, Subha; Simonetti, Orlando ( 2008-01-15 )

Treadmill exercise stress testing is an essential tool in the prevention, detection, and treatment of a broad spectrum of cardiovascular disease. After maximal exercise, cardiac images at peak stress are typically acquired ...

Cartography, territory, property: postcolonial reflections on indigenous counter-mapping in Nicaragua and Belize

Wainwright, Joel; Bryan, Joe ( 2009-04 )

The attention given to indigenous peoples' use of maps to make claims to land and rights of self-government raises the question: what exactly it is that these maps do? This paper outlines an analytic for examining indigenous ...

Causal viscous hydrodynamics in 2 + 1 dimensions for relativistic heavy-ion collisions

Song, Huichao; Heinz, Ulrich ( 2008-06-05 )

We explore the effects of shear viscosity on the hydrodynamic evolution and final hadron spectra of Cu + Cu collisions at ultrarelativistic collision energies, using the newly developed (2 + 1)-dimensional viscous hydrodynamic ...

Census of Self-Obscured Massive Stars in Nearby Galaxies with Spitzer: Implications for Understanding the Progenitors of SN 2008S-like Transients

Khan, Rubab; Stanek, K. Z.; Prieto, J. L.; Kochanek, C. S.; Thompson, Todd A.; Beacom, J. F. ( 2010-06-01 )

A new link in the causal mapping between massive stars and potentially fatal explosive transients opened with the 2008 discovery of the dust-obscured progenitors of the luminous outbursts in NGC 6946 and NGC 300. Here, we ...

Central Masses and Broad-Line Region Sizes of Active Galactic Nuclei. II. A Homogeneous Analysis of a Large Reverberation-Mapping Database

Peterson, Bradley M.; Ferrarese, L.; Gilbert, K. M.; Kaspi, S.; Malkan, M. A.; Maoz, D.; Merritt, D.; Netzer, H.; Onken, C. A.; Pogge, R. W.; Vestergaard, M.; Wandel, A. ( 2004-10-01 )

We present improved black hole masses for 35 active galactic nuclei (AGNs) based on a complete and consistent reanalysis of broad emission-line reverberation-mapping data. From objects with multiple line measurements, we ...