Index Catalog // ScholarsArchive@OSU

Patterns of CaCO₃deposition in the eastern tropical Pacific Ocean for the last 150 kyr: Evidence for a southeast Pacific depositional spike during marine isotope stage (MIS) 2

Creator:: Lyle, Mitchell, Mix, Alan C., and Pisias, Nicklas G.
Abstract:: We constructed biogenic mass accumulation rate (MAR) time series for eastern Pacific core transects across the equator at ~105˚and ~85˚W and along the equator from 80˚to 140˚W. We used empirical orthogonal function (EOF) analysis to extract spatially coherent patterns of CaCO₃deposition for the last 150 kyr. EOF mode 1 (51%...
Resource Type:: Article
Full Text:: isotope stage (MIS) 2 Mitchell Lyle Center for Geophysical Investigation of the Shallow Subsurface, Boise

Can fuel-reduction treatments really increase forest carbon storage in the western US by reducing future fire emissions?

Creator:: Campbell, John L., Harmon, Mark E., and Mitchell, Stephen R.
Abstract:: It has been suggested that thinning trees and other fuel-reduction practices aimed at reducing the probability of high-severity forest fire are consistent with efforts to keep carbon (C) sequestered in terrestrial pools, and that such practices should therefore be rewarded rather than penalized in C-accounting schemes. By evaluating how fuel...
Resource Type:: Article
Full Text:: emissions? John L Campbell, Mark E Harmon, and Stephen R Mitchell Front Ecol Environ 2011; doi:10.1890

Extremely efficient photocurrent generation in carbon nanotube photodiodes enabled by a strong axial electric field

Creator:: McCulley, Daniel R., Senger, Mitchell J., Bertoni, Andrea, and Perebeinos., Vasili
Abstract:: Carbon nanotube (CNT) photodiodes have potential to convert light into electrical current with high efficiency. However, previous experiments have revealed photocurrent quantum yield (PCQY) well below 100%. In this work, we show that axial electric field increases the PCQY of CNT photodiodes. In optimal conditions our data suggest PCQY >...
Resource Type:: Article
Full Text:: carbon nanotube photodiodes enabled by a strong axial electric field Daniel R. McCulley1, Mitchell

Myths, Artifacts, and Fatal Flaws: Identifying Limitations and Opportunities in Vitamin C Research

Creator:: Michels, Alexander J. and Frei, Balz
Abstract:: Research progress to understand the role of vitamin C (ascorbic acid) in human health has been slow in coming. This is predominantly the result of several flawed approaches to study design, often lacking a full appreciation of the redox chemistry and biology of ascorbic acid. In this review, we summarize...
Resource Type:: Article
Full Text:: Limitations and Opportunities in Vitamin C Research Nutrients 2013, 5, 5161-5192; doi:10.3390/nu5125161

Universal interaction-driven gap in metallic carbon nanotubes

Creator:: Senger, Mitchell J., McCulley, Daniel R., Lotfizadeh, Neda, Deshpande, Vikram V., and Minot, Ethan D.
Abstract:: Suspended metallic carbon nanotubes (m-CNTs) exhibit a remarkably large transport gap that can exceed 100 meV. Both experiment and theory suggest that strong electron-electron interactions play a crucial role in generating this electronic structure. To further understand this strongly-interacting system, we have performed electronic measurements of suspended m-CNTs with known...
Resource Type:: Preprint and Article
Full Text:: nanotubes Mitchell J. Senger1, Daniel R. McCulley1, Neda Lotfizadeh2, Vikram V. Deshpande2, Ethan D

Multidecadal variability of atmospheric methane, 1000–1800 C.E.

Creator:: Mitchell, Logan E., Brook, Edward J., Sowers, Todd, McConnell, J. R., and Taylor, Kendrick
Abstract:: We present a new high-precision, high-resolution record of atmospheric methane from the West Antarctic Ice Sheet (WAIS) Divide ice core covering 1000–1800 C.E., a time period known as the late preindustrial Holocene (LPIH). The results are consistent with previous measurements from the Law Dome ice core, the only other high-resolution...
Resource Type:: Article
Full Text:: , 1000–1800 C.E. Logan E. Mitchell,1 Edward J. Brook,1 Todd Sowers,2 J. R. McConnell,3 and Kendrick

Dielectric Engineering Boosts the Efficiency of Carbon Nanotube Photodiodes

Creator:: Senger, Mitchell J., Kefayati, Ali, Bertoni, Andrea, Perebeinos, Vasili, and Minot, Ethan D.
Abstract:: Carbon nanotube (CNT) photodiodes are a promising system for high-efficiency photocurrent generation due to the strong Coulomb interactions that can drive carrier multiplication. If the Coulomb interactions are too strong, however, exciton formation can hamper photocurrent generation. Here, we explore, experimentally and theoretically, the effect of the environmental dielectric constant...
Resource Type:: Article
Full Text:: Photodiodes Mitchell J. Senger,† Ali Kefayati,§ Andrea Bertoni,‡ Vasili Perebeinos,§ Ethan D. Minot

Atmospheric CO₂ over the last 1000 years: A high-resolution record from the West Antarctic Ice Sheet (WAIS) Divide ice core

Creator:: Ahn, Jinho, Brook, Edward J., Mitchell, Logan, Rosen, Julia, McConnell, Joseph R., Taylor, Kendrick, Etheridge, David, and Rubino, Mauro
Abstract:: We report a decadally resolved record of atmospheric CO₂ concentration for the last 1000 years, obtained from the West Antarctic Ice Sheet (WAIS) Divide shallow ice core. The most prominent feature of the pre-industrial period is a rapid ∼7 ppm decrease of CO₂ in a span of ∼20–50 years at...
Resource Type:: Article
Full Text:: Edward J. Brook,2 Logan Mitchell,2 Julia Rosen,2 Joseph R. McConnell,3 Kendrick Taylor,3 David Etheridge

Associations between Mycobacterium avium subsp. paratuberculosis antibodies in bulk tank milk, season of sampling and protocols for managing infected cows

Creator:: Cazer, Casey L., Mitchell, Rebecca M., Cicconi-Hogan, Kellie M., Gamroth, Michael, Richert, Roxann M., Ruegg, Pamela L., and Schukken, Ynte H.
Abstract:: BACKGROUND: The objective of this study was to identify associations between the concentration of Mycobacterium avium subsp. paratuberculosis (MAP) antibodies in bulk milk and potential risk factors in herd management and herd characteristics, explaining high MAP antibody titers in milk. An extensive questionnaire was administered to 292 organic and conventional...
Resource Type:: Article
Full Text:: /statug/63033/HTML/default/viewer.htm#statug_glm_ sect026.htm] 16. Nielsen SS, Gröhn YT, Enevoldsen C

Draft Genome Sequence of Streptomyces sp. Strain ventii, Isolated from a Microbial Mat near Hydrothermal Vents within the Axial Seamount in the Pacific Ocean, and Resequencing of the Type Strains Streptomyces lonarensis NCL 716 and Streptomyces bohaiensis 11A07

Creator:: Loughran, Rachel M., Mitchell, Edward A., Vining, Oliver B., Gallegos, David A., Deadmond, Monica C., Wasson, Benjamin J., Pfannmuller, Kaysa M., Paddock, Brie E., Koyack, Marc J., Oline, David K., Ushijima, Blake, Saw, Jimmy H., McPhail, Kerry L., and Videau, Patrick
Abstract:: The draft genome of Streptomyces sp. strain ventii, an environmental isolate recovered from deep-sea hydrothermal vents in the Pacific Ocean, is presented along with the resequenced draft genomes of the type strains Streptomyces bohaiensis 11A07 and Streptomyces lonarensis NCL 716.
Resource Type:: Article
Full Text:: 11A07 Rachel M. Loughran,a Edward A. Mitchell,b Oliver B. Vining,b David A. Gallegos,b Monica C

ScholarsArchive@OSU

Patterns of CaCO₃deposition in the eastern tropical Pacific Ocean for the last 150 kyr: Evidence for a southeast Pacific depositional spike during marine isotope stage (MIS) 2

Can fuel-reduction treatments really increase forest carbon storage in the western US by reducing future fire emissions?

Extremely efficient photocurrent generation in carbon nanotube photodiodes enabled by a strong axial electric field

Myths, Artifacts, and Fatal Flaws: Identifying Limitations and Opportunities in Vitamin C Research

Universal interaction-driven gap in metallic carbon nanotubes

Multidecadal variability of atmospheric methane, 1000–1800 C.E.

Dielectric Engineering Boosts the Efficiency of Carbon Nanotube Photodiodes

Atmospheric CO₂ over the last 1000 years: A high-resolution record from the West Antarctic Ice Sheet (WAIS) Divide ice core

Associations between Mycobacterium avium subsp. paratuberculosis antibodies in bulk tank milk, season of sampling and protocols for managing infected cows

Draft Genome Sequence of Streptomyces sp. Strain ventii, Isolated from a Microbial Mat near Hydrothermal Vents within the Axial Seamount in the Pacific Ocean, and Resequencing of the Type Strains Streptomyces lonarensis NCL 716 and Streptomyces bohaiensis 11A07

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