Index Catalog // ScholarsArchive@OSU

Classification strategies for unbalanced binary maps : finding Ponderosa pine in the Willamette Valley

Creator:: Riddell, Audrey P.
Abstract:: Forest species classifications are becoming increasingly automated as advances are made in machine learning. The algorithms used to identify tree species range from simple decision trees to intricate neural networks, and often excel in accurately delineating tree species. However, complex algorithms can have high input costs, including the cost of...
Resource Type:: Masters Thesis
Full Text:: Audrey P. Riddell for the degree of Master of Science in Sustainable Forest Management presented on May

Relationship of Soil Type and Burn Severity to Post-Fire Vegetation Response

Creator:: Maclennan, Audrey
Abstract:: Public lands in the Pacific Northwest are managed for multiple uses including timber production, recreation and aesthetic value, maintaining wildlife habitat, conserving native species, and carbon storage. Wildfires impact large areas encompassing broad environmental conditions. Interactions among underlying environmental gradients and alteration of overstory competition by fire of varying severities...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Audrey Maclennan for the

The 2010 Deepwater Horizon Gulf Region Oil Spill: Educational Modules and Methods for Long-Term Remediation

Creator:: Oldenkamp, Audrey G.
Abstract:: On April 20th, 2010 the Deepwater Horizon drilling rig in the Gulf of Mexico malfunctioned leading to a 4.9 million barrel oil spill. The released oil affected marine life, coastal ecosystems, and the economic framework of the Gulf of Mexico. The Gulf spill spurred research on absorbent materials and engineering...
Resource Type:: Honors College Thesis
Full Text:: ii AN ABSTRACT OF THE THESIS Audrey G

Models and Modeling in Capstone Physical and Virtual Laboratory Projects

Creator:: Nefcy, Erick J.
Abstract:: The research presented in this dissertation focuses on the model generation and modeling processes of student teams that participate in capstone, undergraduate engineering physical and virtual laboratory projects. The Heat Exchange Laboratory Project, the Ion Exchange Laboratory Project, and the Virtual Chemical Vapor Deposition (CVD) Laboratory Project provide the context...
Resource Type:: Dissertation
Full Text:: counsel representative. I appreciate Dr. Audrey Champagne, who has supported much of this research with

Speedups of ergodic group extensions

Creator:: Babichev, Audrey, Burton, Robert M., and Fieldsteel, Adam
Abstract:: Abstract: We prove that for all ergodic extensions S-1 of a transformation by a locally compact second countable group G, and for all G-extensions S₂ of an aperiodic transformation, there is a relative speedup of S₁ that is relatively isomorphic to S₂. We apply this result to give necessary and...
Resource Type:: Article
Full Text:: an automorphism of X of the form x 7→ T p(x)(x), where p is a positive integer-valued function on X

Taxonomic re-examination of the toxic armored dinoflagellate Pyrodinium bahamense Plate 1906: Can morphology or LSU sequencing separate P. bahamense var. compressum from var. bahamense?

Creator:: Mertens, Kenneth Neil, Wolny, Jennifer, Carbonell-Moore, Consuelo, Bogus, Kara, Ellegaard, Marianne, Limoges, Audrey, de Vernal, Anne, Gurdebeke, Pieter, Omura, Takuo, Al-Muftah, Abdulrahman, and Matsuoka, Kazumi
Abstract:: Pyrodinium bahamense Plate 1906 is a tropical to subtropical dinoflagellate that can cause paralytic shellfish poisoning (PSP). Based on differences in the morphology of the motile stage, as well as geographic distribution, this species was separated into two varieties, the toxic var. compressum and the non-toxic var. bahamense by Steidinger...
Resource Type:: Article

Aggregation of Sea Urchin Phagocytes Is Augmented In Vitro by Lipopolysaccharide

Creator:: Majeske, Audrey J., Bayne, Christopher J., and Smith, L. Courtney
Abstract:: Development of protocols and media for culturing immune cells from marine invertebrates has not kept pace with advancements in mammalian immune cell culture, the latter having been driven by the need to understand the causes of and develop therapies for human and animal diseases. However, expansion of the aquaculture industry...
Resource Type:: Article
Full Text:: Augmented In Vitro by Lipopolysaccharide Audrey J. Majeske1, Christopher J. Bayne2, L. Courtney Smith1* 1

Variants of Asthma and Chronic Obstructive Pulmonary Disease Genes and Lung Function Decline in Aging

Creator:: Poon, Audrey H., Houseman, E. Andres, Ryan, Louise, Sparrow, David, Vokonas, Pantel S., and Litonjua, Augusto A.
Abstract:: BACKGROUND: A substantial proportion of the general population has low lung function, and lung function is known to decrease as we age. Low lung function is a feature of several pulmonary disorders, such as uncontrolled asthma and chronic obstructive pulmonary disease (COPD). The objective of this study is to investigate...
Resource Type:: Article
Full Text:: , P. S., & Litonjua, A. A. (2014). Variants of Asthma and Chronic Obstructive Pulmonary Disease

Interface Analysis of Titanium Dioxide and Graphene

Creator:: Frazier, Devon Paige
Abstract:: Titanium dioxide, in the anatase form, is a photocatalyst and has applications in water pollution reduction. Efficiency can be improved with a graphene substrate, which delays electron-hole recombination and may reduce the band gap. In this work, we determine if graphene can also act as a morphactant, changing the shape...
Resource Type:: Honors College Thesis
Full Text:: : _____________________________________________________________ P. Alex Greaney Titanium dioxide, in the anatase form, is a photocatalyst and has applications

Biophysical analyses of peroxiredoxins and a partner reductase

Creator:: Hall, Andrea Renée
Abstract:: Peroxiredoxins (Prxs) are dominant peroxide-reducing enzymes with two important roles: they protect all organisms from oxidative damage induced by peroxides, and in eukaryotes, they participate in hydrogen peroxide signaling pathways. This dissertation presents studies aimed at the biophysical characterization of select Prxs and a Prx reductase to elucidate their structure-function...
Resource Type:: Dissertation
Full Text:: . Abstract approved: P. Andrew Karplus

ScholarsArchive@OSU

Classification strategies for unbalanced binary maps : finding Ponderosa pine in the Willamette Valley

Relationship of Soil Type and Burn Severity to Post-Fire Vegetation Response

The 2010 Deepwater Horizon Gulf Region Oil Spill: Educational Modules and Methods for Long-Term Remediation

Models and Modeling in Capstone Physical and Virtual Laboratory Projects

Speedups of ergodic group extensions

Taxonomic re-examination of the toxic armored dinoflagellate Pyrodinium bahamense Plate 1906: Can morphology or LSU sequencing separate P. bahamense var. compressum from var. bahamense?

Aggregation of Sea Urchin Phagocytes Is Augmented In Vitro by Lipopolysaccharide

Variants of Asthma and Chronic Obstructive Pulmonary Disease Genes and Lung Function Decline in Aging

Interface Analysis of Titanium Dioxide and Graphene

Biophysical analyses of peroxiredoxins and a partner reductase

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