Index Catalog // ScholarsArchive@OSU

The Impact of Freeze-Thaw Cycles to the Physical and Biogeochemical Properties of Alaskan Permafrost Soils

Creator:: Rooney, Erin C.
Abstract:: Arctic warming is exposing thawing permafrost to repeated freeze-thaw, a disruptive process that can alter soil biogeochemistry and physical structure. To investigate the impact of permafrost exposure to freeze-thaw, soil response was tested across three scales: 2.5 cm³ aggregates, a forested hillslope, and two sites at contrasting latitudes. XCT imaging...
Resource Type:: Dissertation
Full Text:: . Rooney for the degree of Doctor of Philosophy in Soil Science presented on April 15, 2022. Title

Characteristics of soil organic matter in two forest soils

Creator:: Crow, Susan E.
Abstract:: Soil organic matter (SOM) is the terrestrial biosphere's largest pool of organic carbon (C) and is an integral part of C cycling globally. Soil organic matter composition typically can be traced directly back to the type of detrital inputs; however, the stabilization of SOM results as a combination of chemical...
Resource Type:: Dissertation
Full Text:: located on the western side of the Cascade Range in Oregon, USA (44°15'N, 122°10'W, 726 m elevation

The great fires : Indian burning and catastrophic forest fire patterns of the Oregon Coast Range, 1491-1951

Creator:: Zybach, Bob
Abstract:: The purpose of this study is to examine the relationship between land management practices of Indian communities prior to contact with Europeans and the nature or character of subsequent catastrophic forest fires in the Oregon Coast Range. The research focus is spatial and temporal patterns of Indian burning across the...
Resource Type:: Dissertation
Full Text:: , 1770-1893. 135 3.02 Oregon Coast Range Indian burning practices, pre-1849. 151 3.03 Native plant

The Viability of Container-Based Sanitation as a Tool for Sanitation Coverage in Urban Haiti

Creator:: VanRiper, Froggi Ramona
Abstract:: Haiti is far from achieving the UN goal of sanitation access for all; 20% Haitians have no sanitation access, and less than 0.1% of urban excreta is safely managed. Container-Based Sanitation (CBS) may be a key tool for achieving equitable sanitation coverage in Haiti’s cities. CBS is a sanitation strategy...
Resource Type:: Dissertation
Full Text:: ............................ 15 1.10.3 Hierarchy of needs, and Citywide inclusive sanitation

A procedure for estimating the carbon budget of terrestrial ecosystems in the former Soviet Union by geographic information system analysis and classification of AVHRR derived Global Vegetation Index

Creator:: Gaston, Greg G.
Abstract:: The purpose of this research was to develop methods for using geographic information system (GIS) analysis and unsupervised classification of Global Vegetation Index (GVI) images to improve carbon budget estimates of the former Soviet Union (FSU). A GIS was used to locate the geographic distribution and estimate the area of...
Resource Type:: Dissertation
Full Text:: Thematic Maps 123 13. Comparison of Phytomass Densities 124 14. Comparison of NPP Densities 125 15

Tracking of Melt Pool Motion Using Numerical Analysis of Laser Powder Bed Fusion

Creator:: Cox, Bryce
Abstract:: Laser Powder Bed Fusion (LPBF) is a process commonly used to create additively manufactured metal parts. The flexibility and complexity allowed by the LPBF process provides opportunity for significant advancement in multiple industries as parts can be customized in shape and function for specific needs. These benefits can be compounded...
Resource Type:: Dissertation
Full Text:: comparison of experimental and modeled results……………..… 61 15. Melt pool depth comparison of experimental

Assessing Exposures and Simplifying Complex Mixtures of SVOCs for Hazard Characterization using Alternative Model Systems

Creator:: Rivera, Brianna N.
Abstract:: Throughout their lifetime individuals are exposed to complex mixtures of chemicals. The study of chemical mixtures is an internationally recognized research priority, but seemingly complex challenge. To reduce the intricacy of studying mixtures, researchers have identified different prioritization methods based on exposure or the toxicity of chemicals. However, understanding the...
Resource Type:: Dissertation
Full Text:: .............................................................................................................................. 15 Results

A Diachronic Linguistic Analysis of the Diagnostic and Statistical Manual of Mental Disorders (DSM)

Creator:: Rensi, Matthew T.
Abstract:: The Diagnostic and Statistical Manual of Mental Disorders (DSM) has reached a level of authority and ubiquity within the mental health field. It is the guidance force in insurance reimbursement or coverage for mental health treatment, determinations of disability related to mental health and in determinations of competence to stand...
Resource Type:: Dissertation
Full Text:: Academic Purposes, 23, 16-30. https://doi.org/10.1016/j.jeap.2016.05.006 15 MacInerney, E. K

Using DNA metabarcoding to describe biodiversity and disease dynamics

Creator:: Massey, Aimee L.
Abstract:: Land-use change, particularly in the form of the conversion of primary forest to forest-matrix systems, alters species communities and species interactions. Describing these often complex and nuanced species responses is one of the great challenges in ecology. Another complementary challenge is finding and using the most efficient means for collecting...
Resource Type:: Dissertation
Full Text:: and isolation, the North Pacific coast region supports many endemic plant and animal lineages

ScholarsArchive@OSU

The Impact of Freeze-Thaw Cycles to the Physical and Biogeochemical Properties of Alaskan Permafrost Soils

Characteristics of soil organic matter in two forest soils

The great fires : Indian burning and catastrophic forest fire patterns of the Oregon Coast Range, 1491-1951

The Viability of Container-Based Sanitation as a Tool for Sanitation Coverage in Urban Haiti

A procedure for estimating the carbon budget of terrestrial ecosystems in the former Soviet Union by geographic information system analysis and classification of AVHRR derived Global Vegetation Index

Tracking of Melt Pool Motion Using Numerical Analysis of Laser Powder Bed Fusion

Assessing Exposures and Simplifying Complex Mixtures of SVOCs for Hazard Characterization using Alternative Model Systems

A Diachronic Linguistic Analysis of the Diagnostic and Statistical Manual of Mental Disorders (DSM)

Using DNA metabarcoding to describe biodiversity and disease dynamics

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