Index Catalog // ScholarsArchive@OSU

Physiological and environmental factors affecting diatom species competition in a Gulf Stream warm-core ring

Creator:: Brzezinski, Mark A.
Resource Type:: Dissertation

Silicon biogeochemistry in the open-ocean surface waters : insights from the Sargasso Sea and equatorial Pacific

Creator:: Krause, Jeffrey W.
Abstract:: Diatoms are a ubiquitous group of plankton responsible for 20-40% of oceanic primary production, and a higher fraction of organic matter export to the ocean interior. Diatoms actively transport dissolved inorganic silicon into their cells, and through the process of silicification (i.e. biogenic silica production) they build tough and intricate...
Resource Type:: Dissertation

Harnessing Heterogeneity in Human Gut Microbiome Data

Creator:: Tataru, Christine
Abstract:: The focus of this thesis is to design, characterize, and apply novel computational methods and molecular systems to interrogate heterogeneous human gut microbiome-related phenomena. In Chapter 2, I design, implement, and characterize a method for embedding co-occurrence patterns derived from massive 16s amplicon datasets. I use this method to 1....
Resource Type:: Dissertation
Full Text:: : Harnessing Heterogeneity in Human Gut Microbiome Data Abstract approved: Maude M. David The focus of this

Three Essays on the Economics of Habitat and Landscape Restoration

Creator:: Nguyen, Tu
Abstract:: Natural landscapes around the world have experienced serious loss and degradation, which negatively impacts ecosystem service provision by these landscapes. As a result, there have been serious investments to restore natural capital. However, restoration faces complex trade-offs, such as that between restoration quality, or how closely the restored landscapes resembles...
Resource Type:: Dissertation
Full Text:: : ______________________________________________________ David M. Kling Natural landscapes around the world have experienced serious loss and

A Deterministic Photon and Electron Dosimetry Model for the Lens of the Eye

Creator:: Boozer, David L.
Abstract:: The lens dose equivalent (LDE) is a regulatory limit set to protect radiation workers. Current methods for estimating the LDE are specific to beam sources in a vacuum and require interpolating data from tables. A new set of deterministic equations for photon and electron point sources has been developed. These...
Resource Type:: Dissertation
Full Text:: approved: _____________________________________________________ David M. Hamby The lens dose

Wasserstein β-Diversity Metrics over Graphs: Derivation, Efficient Computation and Applications

Creator:: McClelland, Jason
Abstract:: Microbial ecology has been transformed by metagenomics, the study of the genetic in-formation in entire communities of organisms. In the following we develop metagenomic tools arising from the classic Wasserstein metric as applied to questions regarding the diversity between microbial communities. We provide a novel proof of the characteriza-tion of...
Resource Type:: Dissertation
Full Text:: phylogenetic tree depicting approximately 3000 species from the spec- trum of Earth's biology. Source: David M

Experimental shielding evaluation of the radiation protection provided by residential structures

Creator:: Dickson, Elijah D.
Abstract:: The human health and environmental effects following a postulated accidental release of radioactive material to the environment has been a public and regulatory concern since the early development of nuclear technology and researched extensively to better understand the potential risks for accident mitigation and emergency planning purposes. The objective of...
Resource Type:: Dissertation
Full Text:: : ________________________________________________ David M. Hamby The human health and environmental effects following a postulated accidental

Beta-particle backscatter factors and energy-absorption scaling factors for use with dose-point kernels

Creator:: Mangini, Colby D.
Abstract:: 'Hot particle' skin dosimetry calculations are commonly performed using homogeneous dose-point kernels (DPK) in conjunction with scaling and backscatter models to account for non-homogeneous geometries. A new scaling model for determining the actual DPK for beta-particles transmitted by a high-Z source material has been developed. The model is based on...
Resource Type:: Dissertation
Full Text:: for Use with Dose-Point Kernels Abstract approved: David M. Hamby

A beta dosimeter and spectrometer utilizing plastic scintillators and a large-area avalanche photodiode

Creator:: Kriss, Aaron A.
Abstract:: The purpose of this research was to develop and test a radiation detector to perform beta dosimetry and spectroscopy. The detector utilizes plastic scintillator volumes to produce scintillation light in proportion to the amount of energy deposited in them, and a large-area avalanche photodiode to convert the light to electrical...
Resource Type:: Dissertation
Full Text:: David M. Hamby The purpose of this research was to develop and test a radiation detector to perform

Geochemistry of mid-ocean ridge basalt within and surrounding the Australian-Antarctic discordance

Creator:: Pyle, Douglas G.
Resource Type:: Dissertation
Full Text:: Ridge Basalt Within and Surrounding the Australian-Antarctic Discordance - Abstract Approved: David M

ScholarsArchive@OSU

Physiological and environmental factors affecting diatom species competition in a Gulf Stream warm-core ring

Silicon biogeochemistry in the open-ocean surface waters : insights from the Sargasso Sea and equatorial Pacific

Harnessing Heterogeneity in Human Gut Microbiome Data

Three Essays on the Economics of Habitat and Landscape Restoration

A Deterministic Photon and Electron Dosimetry Model for the Lens of the Eye

Wasserstein β-Diversity Metrics over Graphs: Derivation, Efficient Computation and Applications

Experimental shielding evaluation of the radiation protection provided by residential structures

Beta-particle backscatter factors and energy-absorption scaling factors for use with dose-point kernels

A beta dosimeter and spectrometer utilizing plastic scintillators and a large-area avalanche photodiode

Geochemistry of mid-ocean ridge basalt within and surrounding the Australian-Antarctic discordance

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