Index Catalog // ScholarsArchive@OSU

Investigation of f-Element Extraction and Ligand Association in the ALSEP Extraction System for Used Nuclear Fuel Reprocessing

Creator:: Holfeltz, Vanessa E.
Abstract:: Effective separation of lanthanides (Ln) from the minor actinides (MA) is a crucial technical challenge to closing the nuclear fuel cycle. This separation is a necessary prerequisite to transmute long-lived isotopes of Am and Cm, which will allow a reduction of the repository volume, thermal load, and radiological toxicity of...
Resource Type:: Dissertation
Full Text:: ’-tetra-2-ethylhexyl digly- colamide (T2EHDGA) with HEH[EHP] in an aliphatic diluent. The ALSEP feed is a

Organic Phase Inter-Ligand and Metal-Ligand Speciation in TALSPEAK and ALSEP Solvent Extraction Systems

Creator:: Gullekson, Brian J.
Abstract:: Partitioning of trivalent actinides (in particular, americium and curium) from the fission produced light lanthanides is a major concern of used nuclear fuel reprocessing for the purposes of waste disposal. Several solvent extraction processes have been developed to address these chemically difficult separations. The historically employed TALSPEAK Process utilizes di-2-ethylhexyl...
Resource Type:: Dissertation
Full Text:: 2- ethylhexyl phosphonic acid mono-2-ethylhexyl ester (HEH[EHP]), its phosphonic acid analog as

Examination of Multiple Air Pollutant Exposure, the Food Environment, and Low Birth Weight in Los Angeles, County

Creator:: Coker, Eric S.
Abstract:: Exposure to urban outdoor air pollution is ubiquitous and low birth weight represents an important health disparity in the United States. While previous research suggests that exposure to outdoor air pollutants are associated with term low birth weight, few studies have evaluated the effects of multipollutant outdoor air exposures or...
Resource Type:: Dissertation

Childhood cancer and spatial analyses of benzene exposure in Texas

Creator:: Roberts, Mark T.
Abstract:: Childhood cancers are rare diseases that affect 188 children in Texas for every million born. Leukemia is the most common childhood cancer and accounts for roughly one third of childhood cancer cases. However, it is estimated that only 10% of childhood cancer cases can be explained by known risk factors....
Resource Type:: Dissertation

Classifying polycyclic aromatic hydrocarbon bioactivities using phenotypic screening and transcriptomics in the developmental zebrafish model

Creator:: Geier, Mitra Celestine
Abstract:: Polycyclic aromatic hydrocarbons (PAHs) are widespread environmental contaminants that occur in complex mixtures. These environmental mixtures can consist of both parent PAHs and their derivatives. Several parent PAHs are known or suspected mutagens and/or carcinogens, and a handful of PAH derivatives are known to be more potent mutagens and/or carcinogens...
Resource Type:: Dissertation

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

Solvent Extraction Behavior of Mixed N, O-Donor Ligands for Separation of Trivalent f-Elements

Creator:: Karslyan, Yana
Abstract:: Nowadays selective separation processes are sought after more than ever before. They are indispensable to meet the growing demand for individual rare earth elements, minor actinides partitioned from fission-produced lanthanides, as well as, overall, more concentrated and high-purity products. This research focuses on such separation techniques as solvent extraction which...
Resource Type:: Dissertation
Full Text:: ............................................................................................................ 4 Figure 1.3 Extractant Molecules Used for Development of ALSEP Process: (A) HEH[EHP], (B

Investigating the Impact of Temperature and Air Quality on Human Health in At-Risk Populations

Creator:: Evoy, Richard E.
Abstract:: Climate change is causing people around the world to experience extreme temperature and air pollution events such as wildfires more frequently, and for longer periods of time. Extreme heat events have been widely associated with an increased risk of emergency room visits, occupational heat-related injuries and illnesses, and mortality overall...
Resource Type:: Dissertation

A Multi-Tiered Approach Using Daphnia magna to Assess Chlorpyrifos Risk to Aquatic Receptors

Creator:: Maggio, Stephanie A.
Abstract:: Chlorpyrifos (CPF) is a widely used broad-spectrum organophosphate insecticide. Following exposures, CPF and its more toxic oxon metabolite (CPFO) elicit neurotoxic effects by inhibiting the activity of the acetylcholinesterase enzyme (AChE), resulting in altered fitness and death at high doses. Following exposure, organisms bioactivate CPF to CPFO through the Cytochrome...
Resource Type:: Dissertation

Mortality Associated with Short- and Long-Term Temperature Changes: A Global Evaluation within the Prospective Urban Rural Epidemiology Study

Creator:: Bigouette, John P.
Abstract:: The influence of increasing temperatures on human health has been widely established across multiple health disciplines. Short-term temperature changes are associated with an increased risk of hospitalization and death overall and in a variety of health conditions, such as cardiovascular disease. Even as humans can self-regulate heat stresses, the elderly,...
Resource Type:: Dissertation

ScholarsArchive@OSU

Investigation of f-Element Extraction and Ligand Association in the ALSEP Extraction System for Used Nuclear Fuel Reprocessing

Organic Phase Inter-Ligand and Metal-Ligand Speciation in TALSPEAK and ALSEP Solvent Extraction Systems

Examination of Multiple Air Pollutant Exposure, the Food Environment, and Low Birth Weight in Los Angeles, County

Childhood cancer and spatial analyses of benzene exposure in Texas

Classifying polycyclic aromatic hydrocarbon bioactivities using phenotypic screening and transcriptomics in the developmental zebrafish model

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

Solvent Extraction Behavior of Mixed N, O-Donor Ligands for Separation of Trivalent f-Elements

Investigating the Impact of Temperature and Air Quality on Human Health in At-Risk Populations

A Multi-Tiered Approach Using Daphnia magna to Assess Chlorpyrifos Risk to Aquatic Receptors

Mortality Associated with Short- and Long-Term Temperature Changes: A Global Evaluation within the Prospective Urban Rural Epidemiology Study

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Conference Name

Creator

Contributor

Date

Decade

Degree Field

Degree Level

Degree Name

File Format

Language

License

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search