Index Catalog // ScholarsArchive@OSU

Switching Hemispheres: A New Migration Strategy for the Disjunct Argentinean Breeding Population of Barn Swallow (Hirundo rustica)

Creator:: Garcia-Perez, Belen, Hobson, Keith A., Powell, Rebecca L., Still, Christopher J., and Huber, Gernot H.
Abstract:: Background: Barn Swallows (Hirundo rustica) breed almost exclusively in the Northern Hemisphere. However, since the early 1980's, a small disjunct breeding population has become established in eastern Argentina, presumably by birds previously derived from those breeding in North America. Currently, it is unknown where these individuals go following breeding and...
Resource Type:: Article
Full Text:: America. Citation: Garcia-Perez B, Hobson KA, Powell RL, Still CJ, Huber GH (2013) Switching Hemispheres

Catalyst selective and regiodivergent O- to C- or N-carboxyl transfer of pyrazolyl carbonates: synthetic and computational studies

Creator:: Gould, Eoin, Walden, Daniel M., Kasten, Kevin, Johnston, Ryne C., Wu, Jiufeng, Slawin, Alexandra M., Mustard, Thomas J. L., Johnston, Brittany, Davies, Tony, Cheong, Paul Ha-Yeon, and Smith, Andrew D.
Abstract:: The regiodivergent O- to C- or N-carboxyl transfer of pyrazolyl carbonates is described, with DMAP giving preferential N-carboxylation and triazolinylidenes promoting selective C-carboxylation (both with up to >99 : 1 regioselectivity). An enantioselective O- to C-carboxyl variant using NHC catalysis is demonstrated (up to 92% ee), while mechanistic and DFT studies outline...
Resource Type:: Article
Full Text:: toluene (entries 2–4) while still giving 3 with excellent regioselectivity (>99 : 1 C : N). Remarkably

Isotopic constraints on the pre-industrial oceanic nitrogen budget

Creator:: Somes, C. J., Oschlies, A., and Schmittner, A.
Abstract:: The size of the bioavailable (i.e., “fixed”) nitrogen inventory in the ocean influences global marine productivity and the biological carbon pump. Despite its importance, the pre-industrial rates for the major source and sink terms of the oceanic fixed nitrogen budget, N₂ fixation and denitrification, respectively, are not well known. These...
Resource Type:: Article
Full Text:: nitrogen budget C. J. Somes1, A. Oschlies1, and A. Schmittner2 1GEOMAR Helmholtz-Zentrum f̈ur

Does temperature affect the accuracy of vented pressure transducer in fine-scale water level measurement?

Creator:: Liu, Z and Higgins, C. W.
Abstract:: Submersible pressure transducers have been utilized for collecting water level data since the early 1960s. Together with a digital data logger, it is a convenient way to record water level fluctuations for long-term monitoring. Despite the wide use of pressure transducers for water level monitoring, little has been reported regarding...
Resource Type:: Article
Full Text:: pressure transducer in fine-scale water level measurement? Liu, Z., & Higgins, C. W. (2015). Does

Does temperature affect the accuracy of vented pressure transducer in fine-scale water level measurement?

Creator:: Liu, Z. and Higgins, C. W.
Abstract:: Submersible pressure transducers have been utilized for collecting water level data since early 1960s. Together with a digital datalogger, it is a convenient way to record water level fluctuations for long-term monitoring. Despite the widely use of pressure transducers for water level monitoring, little has been reported for their accuracy...
Resource Type:: Article
Full Text:: pressure transducer in fine-scale water level measurement? Liu, Z., & Higgins, C. W. (2014). Does

Effect of age-based and environment-based cues on reproductive investment in Gambusia affinis

Creator:: Billman, Eric J. and Belk, Mark C.
Abstract:: We examined the multivariate life-history trajectories of age 0 and age 1 female Gambusia affinis to determine relative effects of age-based and environment-based cues on reproductive investment. Age 0 females decreased reproductive investment prior to the onset of fall and winter months, while age 1 females increased reproductive investment as...
Resource Type:: Article
Full Text:: investment in Gambusia affinis Billman, E. J., & Belk, M. C. (2014). Effect of age‐based and environment

The stability and calibration of water vapor isotope ratio measurements during long-term deployments

Creator:: Bailey, A., Noone, D., Berkelhammer, M., Steen-Larsen, H. C., and Sato, P.
Abstract:: With the recent advent of commercial laser absorption spectrometers, field studies measuring stable isotope ratios of hydrogen and oxygen in water vapor have proliferated. These pioneering analyses have provided invaluable feedback about best strategies for optimizing instrumental accuracy, yet questions still remain about instrument performance and calibration approaches for multi-year...
Resource Type:: Article
Full Text:: , H. C., & Sato, P. (2015). The stability and calibration of water vapor isotope ratio measurements

The stability and calibration of water vapor isotope ratio measurements during long-term deployments

Creator:: Bailey, A., Noone, D., Berkelhammer, M., Steen-Larsen, H. C., and Sato, P.
Abstract:: With the recent advent of commercial laser absorption spectrometers, field studies measuring stable isotope ratios of hydrogen and oxygen in water vapor have proliferated. These pioneering analyses have provided invaluable feedback about best strategies for optimizing instrumental accuracy, yet questions still remain about instrument performance and calibration approaches for multi-year...
Resource Type:: Article
Full Text:: , H. C., & Sato, P. (2015). The stability and calibration of water vapor isotope ratio measurements

Malonate Inhibits Virulence Gene Expression in Vibrio cholerae

Creator:: Minato, Yusuke, Fassio, Sara R., and Häse, Claudia C.
Abstract:: We previously found that inhibition of the TCA cycle, either through mutations or chemical inhibition, increased toxT transcription in Vibrio cholerae. In this study, we found that the addition of malonate, an inhibitor of succinate dehydrogenase (SDH), decreased toxT transcription in V. cholerae, an observation inconsistent with the previous pattern...
Resource Type:: Article
Full Text:: Vibrio cholerae Yusuke Minato1, Sara R. Fassio2, Claudia C. Häse1,2* 1 Department of Biomedical

A Numerical Examination of ¹⁴CO₂ Chamber Methodologies for Sampling at the Soil Surface

Creator:: Egan, Jocelyn, Nickerson, Nick, Phillips, Claire, and Risk, Dave
Abstract:: Radiocarbon is an exceptionally useful tool for studying soil-respired CO₂, providing information about soil carbon turnover rates, depths of production, and the biological sources of production through partitioning. Unfortunately, little work has been done to thoroughly investigate the possibility of inherent biases present in current measurement techniques, like those present...
Resource Type:: Article
Full Text:: multiple of one another, but that the δ13C correction still works in diffusive scenarios because the

ScholarsArchive@OSU

Switching Hemispheres: A New Migration Strategy for the Disjunct Argentinean Breeding Population of Barn Swallow (Hirundo rustica)

Catalyst selective and regiodivergent O- to C- or N-carboxyl transfer of pyrazolyl carbonates: synthetic and computational studies

Isotopic constraints on the pre-industrial oceanic nitrogen budget

Does temperature affect the accuracy of vented pressure transducer in fine-scale water level measurement?

Does temperature affect the accuracy of vented pressure transducer in fine-scale water level measurement?

Effect of age-based and environment-based cues on reproductive investment in Gambusia affinis

The stability and calibration of water vapor isotope ratio measurements during long-term deployments

The stability and calibration of water vapor isotope ratio measurements during long-term deployments

Malonate Inhibits Virulence Gene Expression in Vibrio cholerae

A Numerical Examination of ¹⁴CO₂ Chamber Methodologies for Sampling at the Soil Surface

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Conference Name

Creator

Date

Decade

Degree Field

Degree Level

Degree Name

Language

License

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search