Index Catalog // ScholarsArchive@OSU

Part I: Synthetic Studies toward C10-functionalized Lycopodium Alkaloids. Part II: Exploration of the Pummerer Cyclization and Its Application to the Total Syntheses of the Abietane Diterpenoids

Creator:: Li, Xin
Abstract:: This dissertation is separated into two parts according to the two major distinct research projects. In Part I, the full account of synthetic studies toward C10-functionalized lycopodium alkaloids is described. In Part II, the detailed discussion on the exploration of the Pummerer cyclization methodology and its application to the total...
Resource Type:: Dissertation

Measuring Electron Activity to Constrain the Role of Soil Structure in the Formation of Biogeochemical Heterogeneity

Creator:: Wanzek, Thomas
Abstract:: Soils have a critical role in global carbon (C) cycling, containing one of the largest fast-cycling carbon stocks on earth. Robust representation of soil organic matter dynamics in Earth System Models is critical for future climate prediction. Current C cycling models assume that all C cycling in non-hydric (i.e. ‘upland’)...
Resource Type:: Masters Thesis
Full Text:: ., 1990) pedogenic thresholds of Fe, P and S (Chacon et al., 2006; Dorau and Mansfeldt, 2016; Gomez et

Coastal Dune Ecology, Geomorphology, and Ecosystem Services : How Invasive Beachgrasses, their Interactions, and Sediment Dynamics Shape U.S. Pacific Northwest Dunes

Creator:: Biel, Reuben G.
Abstract:: Biological invasions and climate change represent two preeminent threats to ecological communities and biodiversity, altering the distribution and abundance of species, disrupting existing species interactions and forming unprecedented ones, and creating novel ecological communities. Many of the most successful invasive species are also ecosystem engineers, species that physically modify the...
Resource Type:: Dissertation
Full Text:: missing my PhD defense (caring for his newborn instead). I also thank Walter Still, Elizabeth Spang, and

Comparison of Relationship between Accelerometer Outputs and Energy Expenditures in People with and without Down syndrome during Walking Activity

Creator:: Leung, Chun (Willie)
Abstract:: In recent years, there has been an increased interest in accurately measuring physical activity levels with accelerometers. Two distinct approaches have been used to estimate physical activity levels with accelerometers are vertical axis activity counts and vector magnitude (VM). Although previous studies evaluated these two distinct approaches for individuals without...
Resource Type:: Masters Thesis
Full Text:: with and without disabilities (Dixon-Ibarra, Lee, & Dugala, 2013; Izquierdo-Gomez et al., 2014

Solution-based Chalcogenide Thin Film Deposition

Creator:: Pan, Changqing
Abstract:: As a group of promising semiconductor materials, metal chalcogenides in thin film form have been widely used in electronics and optoelectronics applications, such as solar cell devices and photon sensors. Unfortunately, the film size and product throughput are limited by the current vacuum-based thin film deposition techniques. Solution-based thin film...
Resource Type:: Dissertation

Phylogenetic Studies in Tenebrionidae (Coleoptera) and Related Families

Creator:: Kanda, Kojun
Abstract:: In this dissertation, I present the results from three studies: (1) a phylogeny of Tenebrionoidea (Coleoptera) inferred from a seven-gene dataset derived from PCR and Sanger sequencing; (2) a phylogeny of Tenebrionidae, the largest family in Tenebrionoidea, inferred from a four-gene dataset also derived from PCR and Sanger sequencing; (3)...
Resource Type:: Dissertation
Full Text:: , Antonio Gomez, Paul Marek, Wendy Moore, Jeff Oliver, James Pflug

Impacts of Ocean Acidification on Coralline Algae : From Species to Community Consequences

Creator:: Shen, Chenchen
Abstract:: Oceanic uptake of rising anthropogenic CO₂ emissions has caused the emergence of ocean acidification as a major threat to marine ecosystems worldwide. Along eastern boundary current systems, seawater is naturally acidified due to coastal upwelling of low pH seawater from depth. Compounded by ocean acidification, upwelling regions are expected to...
Resource Type:: Dissertation
Full Text:: , Lacey Schrock Purkey, Wayne Walter, Eli Waddell, and Amanda Cunha de Souza Coracao, Early attempts

Patterns and Processes of Fish Dispersal and Settlement along the Oregon Coast

Creator:: Ottmann Riera, Daniel
Abstract:: Most benthic marine organisms have a bipartite life with an early pelagic stage that enables dispersal of offspring, connecting spatially separated populations, and a late stage where individuals reside in a benthic habitat. Settlement of pelagic offspring to bottom associated substrates is the process that connects the two life history...
Resource Type:: Masters Thesis

Role of Melanocytic Vitamin D Receptor (VDR) in UVB-induced Melanocyte Homeostasisand Keratinocytic Retinoid–X-Receptor α (RXRα) in UVB Induced Melanomagenesis

Creator:: Chagani, Sharmeen
Abstract:: Cutaneous melanoma remains the deadliest form of skin cancer arising from malignant transformation of pigment-producing melanocytes, with a diagnosis of metastasis indicating a median survival rate of less than a year. Solar ultraviolet (UV) radiation, especially childhood sun exposure, is an important etiological risk factor of melanoma. This DNA damage...
Resource Type:: Dissertation

Response of Soil Temperature, Moisture, and Respiration Two Years Following Intensive Organic Matter and Compaction Manipulations in Oregon Cascade Forests

Creator:: Gallo, Adrian Carlos
Abstract:: Forest soils contain a substantial portion of global terrestrial carbon stores. Forest management can influence the soil carbon pool and how soil organic matter functions. The long-term productivity of forests is an ongoing goal where land managers utilize biomass and timber. A site-specific understanding of intensively managed forests can ensure...
Resource Type:: Masters Thesis
Full Text:: and flow breccias between 32-17 million years old (Walter and Duncan, 1989). The soils of the area

ScholarsArchive@OSU

Part I: Synthetic Studies toward C10-functionalized Lycopodium Alkaloids. Part II: Exploration of the Pummerer Cyclization and Its Application to the Total Syntheses of the Abietane Diterpenoids

Measuring Electron Activity to Constrain the Role of Soil Structure in the Formation of Biogeochemical Heterogeneity

Coastal Dune Ecology, Geomorphology, and Ecosystem Services : How Invasive Beachgrasses, their Interactions, and Sediment Dynamics Shape U.S. Pacific Northwest Dunes

Comparison of Relationship between Accelerometer Outputs and Energy Expenditures in People with and without Down syndrome during Walking Activity

Solution-based Chalcogenide Thin Film Deposition

Phylogenetic Studies in Tenebrionidae (Coleoptera) and Related Families

Impacts of Ocean Acidification on Coralline Algae : From Species to Community Consequences

Patterns and Processes of Fish Dispersal and Settlement along the Oregon Coast

Role of Melanocytic Vitamin D Receptor (VDR) in UVB-induced Melanocyte Homeostasisand Keratinocytic Retinoid–X-Receptor α (RXRα) in UVB Induced Melanomagenesis

Response of Soil Temperature, Moisture, and Respiration Two Years Following Intensive Organic Matter and Compaction Manipulations in Oregon Cascade Forests

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