Index Catalog // ScholarsArchive@OSU

Near collapse of the meridional SST gradient in the eastern equatorial Pacific during Heinrich Stadial 1

Creator:: Kienast, Stephanie S., Friedrich, Tobias, Dubois, Nathalie, Hill, Paul S., Timmermann, Axel, Mix, Alan C., and Kienast, Markus
Abstract:: Sea surface temperatures (SST) and inorganic continental input over the last 25,000 years (25 ka) are reconstructed in the far eastern equatorial Pacific (EEP) based on three cores stretching from the equatorial front (~0.01°N, ME0005-24JC) into the cold tongue region (~3.6°S; TR163-31P and V19-30). We revisit previously published alkenone-derived SST...
Resource Type:: Article
Full Text:: equatorial Pacific during Heinrich Stadial 1 Stephanie S. Kienast,1 Tobias Friedrich,2 Nathalie Dubois,3

Thorium-230 normalized particle flux and sediment focusing in the Panama Basin region during the last 30,000 years

Creator:: Kienast, S. S., Kienast, M., Mix, Alan C., Calvert, S. E., and Francois, R.
Abstract:: Application of the ²³⁰Th normalization method to estimate sediment burial fluxes in six cores from the eastern equatorial Pacific (EEP) reveals that bulk sediment and organic carbon fluxes display a coherent regional pattern during the Holocene that is consistent with modern oceanographic conditions, in contrast with estimates of bulk mass...
Resource Type:: Article
Full Text:: focusing in the Panama Basin region during the last 30,000 years S. S. Kienast,1 M. Kienast,1 A. C. Mix,2

A review of nitrogen isotopic alteration in marine sediments

Creator:: Robinson, Rebecca S., Kienast, Markus, Albuquerque, Ana Luiza, Altabet, Mark, Contreras, Sergio, De Pol Holz, Ricardo, Dubois, Nathalie, Francois, Roger, Galbraith, Eric, Hsu, Ting-Chang, Ivanochko, Tara, Jaccard, Samuel, Kao, Shuh-Ji, Kiefer, Thorsten, Kienast, Stephanie, Lehmann, Moritz, Martinez, Philippe, McCarthy, Matthew, Mobius, Jurgen, Pedersen, Tom, Quan, Tracy M., Ryabenko, Evgeniya, Schmittner, Andreas, Schneider, Ralph, Schneider-Mor, Aya, Shigemitsu, Masahito, Sinclair, Dan, Somes, Christopher, Studer, Anja, Thunell, Robert, and Yang, Jin-Yu
Abstract:: Nitrogen isotopes are an important tool for evaluating past biogeochemical cycling from the paleoceanographic record. However, bulk sedimentary nitrogen isotope ratios, which can be determined routinely and at minimal cost, may be altered during burial and early sedimentary diagenesis, particularly outside of continental margin settings. The causes and detailed mechanisms...
Resource Type:: Article
Full Text:: marine sediments Rebecca S. Robinson,1 Markus Kienast,2 Ana Luiza Albuquerque,3 Mark Altabet,4 Sergio

Modeling and Finite Element Analysis of a Standard Concrete Canoe

Creator:: Stache, Stephanie S.
Abstract:: This thesis project provides a guiding framework for the structural analysis portion of the National Concrete Canoe Competition (NCCC). Step-by-step instructions on how to 3-dimensionally model a “standard” sized concrete canoe in AutoCAD Civil 3D, import the model into SAP2000, and proceed to analyze the canoe with the SAP2000 finite...
Resource Type:: Honors College Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Stephanie S

All hosts are not created equal : variation in amphibian responses to an emerging fungal pathogen and why it matters

Creator:: Gervasi, Stephanie S.
Abstract:: Emerging infectious diseases are increasing globally and are a threat to human, wildlife, and ecosystem health. The emerging fungal pathogen, Batrachochytrium dendrobatidis (Bd), or amphibian chytrid fungus, is associated with worldwide amphibian population declines and extinctions. Bd has been found on every continent where amphibians exist and has been documented...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Stephanie S. Gervasi for the degree of Doctor of Philosophy in

Comment on "Do geochemical estimates of sediment focusing pass the sediment test in the equatorial Pacific?" by M. Lyle et al.

Creator:: Francois, Roger, Frank, Martin, Rutgers van der Loeff, Michiel, Bacon, Michael P., Geibert, Walter, Kienast, Stephanie, Anderson, Robert F., Bradtmiller, Louisa, Chase, Zanna, Henderson, Gideon, Marcantonio, Franco, and Allen, Susan E.
Abstract:: Accurately estimating the vertical flux of material reaching the seafloor from the overlying surface waters is essential for the paleoceanographic reconstruction of a wide variety of oceanic processes. Two approaches are currently being used. One consists of estimating mass accumulation rates (MAR) between dated horizons as the product of linear...
Resource Type:: Article
Full Text:: Frank,2 Michiel Rutgers van der Loeff,3 Michael P. Bacon,4 Walter Geibert,3 Stephanie Kienast,5 Robert

Riparian litter inputs to streams in the central Oregon Coast Range

Creator:: Hart, Stephanie K., Hibbs, David E., and Perakis, Steven S.
Abstract:: Riparian-zone vegetation can influence terrestrial and aquatic food webs through variation in the amount, timing, and nutritional content of leaf and other litter inputs. We investigated how riparianforest community composition, understory density, and lateral slope shaped vertical and lateral litter inputs to 16 streams in the Oregon Coast Range. Riparian...
Resource Type:: Article
Full Text:: Range Stephanie K. Hart1 AND David E. Hibbs2 Department of Forest Ecosystems and Society, Oregon State

Prevalence of Exertional Rhabdomyolysis in Endurance Horses in the Pacific Northwestern United States

Creator:: Wilberger, Melissa S., Mckenzie, Erica C., Payton, Mark E., Rigas, Johanna. D., and Valberg, Stephanie J.
Abstract:: SUMMARY - REASONS FOR PERFORMING STUDY: Exertional rhabdomyolysis (ER) is a reported syndrome in competing endurance horses; however the prevalence and cause of ER in this population has not been defined. OBJECTIVES: To determine the prevalence of ER in a sample of endurance racing horses, and to investigate factors, including...
Resource Type:: Article
Full Text:: Rhabdomyolysis in Endurance Horses in the Pacific Northwestern United States Wilberger, M. S., McKenzie, E. C

Offspring of first-generation hatchery steelhead trout (Oncorhynchus mykiss) grow faster in the hatchery than offspring of wild fish, but survive worse in the wild: Possible mechanisms for inadvertent domestication and fitness loss in hatchery salmon

Creator:: Blouin, Michael S., Wrey, Madeleine C., Bollmann, Stephanie R., Skaar, James C., Twibell, Ronald G., and Fuentes, Claudio
Abstract:: Salmonid fish raised in hatcheries often have lower fitness (number of returning adult offspring) than wild fish when both spawn in the wild. Body size at release from hatcheries is positively correlated with survival at sea. So one explanation for reduced fitness is that hatcheries inadvertently select for trait values...
Resource Type:: Article
Full Text:: domestication and fitness loss in hatchery salmon Michael S. BlouinID 1*, Madeleine C. Wrey1¤, Stephanie R

Viral Outbreak in Corals Associated with an In Situ Bleaching Event: Atypical Herpes-Like Viruses and a New Megavirus Infecting Symbiodinium

Creator:: Correa, Adrienne M. S., Ainsworth, Tracy D., Rosales, Stephanie M., Thurber, Andrew R., Butler, Christopher R., and Thurber, Rebecca L. Vega
Abstract:: Previous studies of coral viruses have employed either microscopy or metagenomics, but few have attempted to comprehensively link the presence of a virus-like particle (VLP) to a genomic sequence. We conducted transmission electron microscopy imaging and virome analysis in tandem to characterize the most conspicuous viral types found within the...
Resource Type:: Article
Full Text:: M. S. Correa1,2, Tracy D. Ainsworth3, Stephanie M. Rosales1, Andrew R. Thurber4, Christopher R

ScholarsArchive@OSU

Near collapse of the meridional SST gradient in the eastern equatorial Pacific during Heinrich Stadial 1

Thorium-230 normalized particle flux and sediment focusing in the Panama Basin region during the last 30,000 years

A review of nitrogen isotopic alteration in marine sediments

Modeling and Finite Element Analysis of a Standard Concrete Canoe

All hosts are not created equal : variation in amphibian responses to an emerging fungal pathogen and why it matters

Comment on "Do geochemical estimates of sediment focusing pass the sediment test in the equatorial Pacific?" by M. Lyle et al.

Riparian litter inputs to streams in the central Oregon Coast Range

Prevalence of Exertional Rhabdomyolysis in Endurance Horses in the Pacific Northwestern United States

Offspring of first-generation hatchery steelhead trout (Oncorhynchus mykiss) grow faster in the hatchery than offspring of wild fish, but survive worse in the wild: Possible mechanisms for inadvertent domestication and fitness loss in hatchery salmon

Viral Outbreak in Corals Associated with an In Situ Bleaching Event: Atypical Herpes-Like Viruses and a New Megavirus Infecting Symbiodinium

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