Index Catalog // ScholarsArchive@OSU

Seasonality of U[superscript K’]₃₇ temperature estimates as inferred from sediment trap data

Creator:: Rosell-Melé, Antoni and Prahl, Fredrick G.
Abstract:: The seasonality of sea surface temperatures (SST) estimated from the alkenone-U[superscript K’]₃₇ index has been a debated issue since the development of the sediment trap time series data from 34 sampling locations, we show that the maximum alkenone flux in sediment traps varies markedly across the oceans, only on latitude...
Resource Type:: Article
Full Text:: trap data 2 3 Antoni Rosell-Melé a,b* and Fredrick G. Prahl c 4 a ICREA, Pg. Lluís

Eolian transport of glycerol dialkyl glycerol tetraethers (GDGTs) off northwest Africa

Creator:: Fietz, Susanne, Prahl, Fredrick G., Moraleda, Núria, and Rosell-Melé, Antoni
Abstract:: Branched glycerol dialkyl glycerol tetraethers (brGDGTs) of purportedly terrestrial origin are frequently detected in marine sediments, even in remote ocean sites where no direct impact from land erosion via rivers takes place. At these places, the most likely explanation for the presence of brGDGTs is in situ production or eolian...
Resource Type:: Article
Full Text:: , V.M., Palm, S.P., Reagen, J.A., Fang, H., Grant, W.B., Hoff, R.M., Moulin, C., Pierce, H.F., Torres

Bacterial dominance in subseafloor sediments characterized by methane hydrates

Creator:: Briggs, Brandon R., Inagaki, Fumio, Morono, Yuki, Futagami, Taiki, Huguet, Carme, Rosell-Mele, Antoni, Lorenson, Thomas D., and Colwell, Frederick S.
Abstract:: The degradation of organic carbon in subseafloor sediments on continental margins contributes to the largest reservoir of methane on Earth. Sediments in the Andaman Sea are composed of ~ 1% marine-derived organic carbon and biogenic methane is present. Our objective was to determine microbial abundance and diversity in sediments that...
Resource Type:: Article
Full Text:: proteinase K diges- tion (10 mg for 2 h at 50 °C with gentle rocking) after bead beating, referred to

C–H···O Non-Classical Hydrogen Bonding in the Stereomechanics of Organic Transformations: Theory and Recognition

Creator:: Johnston, Ryne C. and Cheong, Paul Ha-Yeon
Abstract:: This manuscript describes the role of non-classical hydrogen bonds (NCHBs), specifically C–H···O interactions, in modern synthetic organic transformations. Our goal is to point out the seminal examples where C–H···O interactions have been invoked as a key stereocontrolling element and to provide predictive value in recognizing future and/or potential C–H···O interactions...
Resource Type:: Article
Full Text:: RSC Article Template (Version 3.2) C–H···O Non

Phenology and Productivity of C₃ and C₄ Grasslands in Hawaii

Creator:: Pau, Stephanie and Still, Christopher J.
Abstract:: Grasslands account for a large proportion of global terrestrial productivity and play a critical role in carbon and water cycling. Within grasslands, photosynthetic pathway is an important functional trait yielding different rates of productivity along environmental gradients. Recently, C₃-C₄ sorting along spatial environmental gradients has been reassessed by controlling for...
Resource Type:: Article
Full Text:: Phenology and Productivity of C₃ and C₄ Grasslands in Hawaii

Inhibitory Effects of C₂ to C₁₀ 1-Alkynes on Ammonia Oxidation in Two Nitrososphaera Species

Creator:: Taylor, A. E., Taylor, K., Tennigkeit, B., Palatinszky, M., Stieglmeier, M., Myrold, D. D., Schleper, C., Wagner, M., and Bottomley, P. J.
Abstract:: A previous study showed that ammonia oxidation by the Thaumarchaeota Nitrosopumilus maritimus (group 1.1a) was resistant to concentrations of the C₈ 1-alkyne, octyne, which completely inhibits activity by ammonia-oxidizing bacteria. In this study, the inhibitory effects of octyne and other C₂ to C₁₀ 1-alkynes were evaluated on the nitrite production...
Resource Type:: Article
Full Text:: at 42°C and sampling at 15-min intervals for 2 h. Abiotic controls containing only growth medium plus

¹⁴C and ¹³C characteristics of higher plant biomarkers in Washington margin surface sediments

Creator:: Feng, Xiaojuan, Benitez-Nelson, Bryan C., Montlucon, Daniel B., Prahl, Fredrick G., McNichol, Ann P., Xu, Li, Repeta, Daniel J., and Eglinton, Timothy I.
Abstract:: Plant wax lipids and lignin phenols are the two most common classes of molecular markers that are used to trace vascular plant-derived OM in the marine environment. However, their ¹³C and ¹⁴C compositions have not been directly compared, which can be used to constrain the flux and attenuation of terrestrial...
Resource Type:: Article
Full Text:: , SiO2 and CuO powders (for lignin extraction) were pre-combusted at 450 �C for 5 h before use. Teflon

Thauera butanivorans sp. nov., a C₂–C₉ alkane-oxidizing bacterium previously referred to as ‘Pseudomonas butanovora’

Creator:: Dubbels, Bradley L., Sayavedra-Soto, Luis A., Bottomley, Peter J., and Arp, Daniel J.
Abstract:: The placement of ‘Pseudomonas butanovora’ in the genus Thauera was proposed previously, based on 16S rRNA gene sequence analysis, upon further studies of taxonomical characteristics. In this study, physiological characteristics and DNA–DNA reassociation data are presented and the transfer of ‘P. butanovora’ to the genus Thauera is proposed. The original...
Resource Type:: Article
Full Text:: , L. H., Moore, W. E. C., Murray, R. G. E. & other authors (1987). International Committee on

Climate Sensitivity Estimated From Temperature Reconstructions of the Last Glacial Maximum

Creator:: Schmittner, Andreas, Urban, Nathan M., Shakun, Jeremy D., Mahowald, Natalie M., Clark, Peter U., Bartlein, Patrick J., Mix, Alan C., and Rosell-Mele, Antoni
Abstract:: Assessing impacts of future anthropogenic carbon emissions is currently impeded by uncertainties in our knowledge of equilibrium climate sensitivity to atmospheric carbon dioxide doubling. Previous studies suggest 3 K as best estimate, 2–4.5 K as the 66% probability range, and non-zero probabilities for much higher values, the latter implying a...
Resource Type:: Article

High-resolution infrared studies of perdeutero-spiropentane, C₅D₈

Creator:: Erickson, B. A., Ju, X., Nibler, J. W., Beaudry, C. M., and Blake, T. A.
Abstract:: Perdeutero-spiropentane (C₅D₈) has been synthesized, and infrared and Raman spectra are reported for the first time. Wavenumber assignments are made for most of the fundamental vibrational states. Gas phase infrared spectra were recorded at a resolution (0.002 cm⁻¹) sufficient to resolve individual rovibrational lines and show evidence of strong Coriolis...
Resource Type:: Article
Full Text:: to stir at room temperature for 12 h, then was heated to 50 �C and stirred for another 6 h. The

ScholarsArchive@OSU

Seasonality of U[superscript K’]₃₇ temperature estimates as inferred from sediment trap data

Eolian transport of glycerol dialkyl glycerol tetraethers (GDGTs) off northwest Africa

Bacterial dominance in subseafloor sediments characterized by methane hydrates

C–H···O Non-Classical Hydrogen Bonding in the Stereomechanics of Organic Transformations: Theory and Recognition

Phenology and Productivity of C₃ and C₄ Grasslands in Hawaii

Inhibitory Effects of C₂ to C₁₀ 1-Alkynes on Ammonia Oxidation in Two Nitrososphaera Species

¹⁴C and ¹³C characteristics of higher plant biomarkers in Washington margin surface sediments

Thauera butanivorans sp. nov., a C₂–C₉ alkane-oxidizing bacterium previously referred to as ‘Pseudomonas butanovora’

Climate Sensitivity Estimated From Temperature Reconstructions of the Last Glacial Maximum

High-resolution infrared studies of perdeutero-spiropentane, C₅D₈

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