Index Catalog // ScholarsArchive@OSU

The distribution and properties of the tannin in Douglas fir bark (Pseudotsuga taxifolia, Britt.)

Creator:: Hubbard, James Kenneth
Resource Type:: Masters Thesis
Full Text:: Fir bark (Psuedotsuga taxifolia, Britt.) THE D ISTRIBUTION AND PROPERTIES OF THE TANNIN IN DOU(VLS

Per- and Polyfluoroalkyl Substances (PFASs) and Aqueous Film-Forming Foam Impacted Sites : New PFAS Discovery and Sorption of Anionic, Zwitterionic, and Cationic PFASs

Creator:: Barzen-Hanson, Krista A.
Abstract:: Public attention and concern about per- and polyfluoroalkyl substances (PFASs) are increasing due to detection of PFASs in drinking water supplies, the environment, including remote locations, and wildlife and to the lowering of the federal health advisory levels of perfluorooctane sulfonate (PFOS) and perfluorooctanoate (PFOA) in drinking water. Aqueous film-forming...
Resource Type:: Dissertation
Full Text:: Krista A. Barzen-Hanson for the degree of Doctor of Philosophy in Chemistry presented on January 10

The development and characterization of miniature spectrometers for measuring the redox status of environmental samples

Creator:: Cantrell, Kevin
Abstract:: A spectrometer, here denoted a Simple, Low-power, Inexpensive. Microcontroller-based or SLIM spectrometer. was developed that exploits the small size and low cost of solid-state electronic devices. This approach results in customizable spectrometers that are considerably less expensive and smaller than traditional instrumentation. The performance of the SLIM spectrometer was evaluated...
Resource Type:: Dissertation
Full Text:: described in Appendices D and E. Daisy Hubbard and Becky Hoerauf helped with many of the experiments

Chemical composition studies of Oregon and Washington coastal basalts

Creator:: Hill, Dale Wayne
Abstract:: Basalts of both Eocene and Miocene age from several groups along the Oregon and Washington coasts have been analyzed for some major, minor, and trace elements using instrumental neutron activation analysis (INAA). The rare earth element (REE) patterns observed in these samples are used for comparisons within the groups studied...
Resource Type:: Masters Thesis
Full Text:: plus financial assistance in the form of a research assistantship. Dr. Parke D. Snavely of the U. S

Purification of 2,5-dihydroxyacetanilide epoxidase and mechanism of hydroquinone epoxidases

Creator:: Kirchmeier, Marc J.
Abstract:: 2,5-dihydroxyacetanilide epoxidase from Streptomyces LL-C10037 (DHAE I) catalyzes the epoxidation of hydroquinone 4, to form epoxyquinone 7. DHAE I has been purified to homogeneity, with an overall purification factor greater than 23,000. N-terminal and internal amino acid sequences have been obtained from the purified enzyme so that the epoxidase gene...
Resource Type:: Dissertation
Full Text:: proofreading of this thesis. To the other members of my doctoral committee: Professor D. A. Keszler

LL-C10037α and MM 14201 : structure, biosynthesis and enzymology of two epoxysemiquinone antibiotics

Creator:: Shen, Ben
Resource Type:: Dissertation
Full Text:: direction, continuous enthusiasm and unending support and encouragement. To professor D. D. Weller for his

Variations in trace element abundances in small fragments from a single terrestrial basaltic flow : applications to 59 Apollo-17 mare basaltic fragments

Creator:: Rivera, Maria Rita Dacanay
Abstract:: Eleven hand specimen whole rock (WR) samples (25-200 g each) and 33 fragments (0.5-0.8 g each) from a single basaltic flow at Picture Gorge, Oregon were analyzed via instrumental neutron activation analysis (INAA) for 12 elements (Na, Fe, Cr, Sc, Co, La, Sm, Eu, Yb, Lu, Hf and Ta). Standard...
Resource Type:: Masters Thesis
Full Text:: of my committee, Dr. Harry Freund, Dr. Roman A. Schmitt, and Dr. Walter D. Loveland, for the

A spectrophone study of vibrational relaxation in methane

Creator:: Breshears, Wilbert Dale
Abstract:: The spectrophone method for the study of vibrational relaxation has been claimed to possess a distinct advantage over the more commonly used ultrasonic techniques in that it permits the relaxation of the various infrared-active vibrational modes in a polyatomic molecule to be studied separately. A discussion of the rate equations...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF Wilbert Dale Breshears for the Ph. D. in Chemistry (Name) (Degree

Use of Targeted and Non-Targeted Analysis to Study Complex PAH Environmental Mixtures

Creator:: Chibwe, Leah
Abstract:: Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous contaminants formed from the incomplete combustion of organic material. These contaminants are of concern because of their widespread presence in the environment and toxic properties. In addition, PAHs encompass a class of diverse compounds with varying physicochemical properties and exist in the environment as...
Resource Type:: Dissertation
Full Text:: toxicity assays demonstrated increased toxicity postbioremediation in four soil extract fractions (C, D

Structure-property Relationships of Transition Metal Oxides Containing Precious Metals

Creator:: Hapuraja Pathirannehelage, Vidhara H. P.
Abstract:: This dissertation presents a study of structure-property relationships within 3d/4d metal oxides containing precious metals through detailed structure refinements using high-resolution neutron and X-ray diffraction data along with exploration of the resultant properties. Oxides of 4d or 5d transition metals tend to show new topological phases due to significant spin-orbit...
Resource Type:: Dissertation
Full Text:: color. The green color observed in Mn containing sillenites is due to the d-d transition of Mn ions

ScholarsArchive@OSU

The distribution and properties of the tannin in Douglas fir bark (Pseudotsuga taxifolia, Britt.)

Per- and Polyfluoroalkyl Substances (PFASs) and Aqueous Film-Forming Foam Impacted Sites : New PFAS Discovery and Sorption of Anionic, Zwitterionic, and Cationic PFASs

The development and characterization of miniature spectrometers for measuring the redox status of environmental samples

Chemical composition studies of Oregon and Washington coastal basalts

Purification of 2,5-dihydroxyacetanilide epoxidase and mechanism of hydroquinone epoxidases

LL-C10037α and MM 14201 : structure, biosynthesis and enzymology of two epoxysemiquinone antibiotics

Variations in trace element abundances in small fragments from a single terrestrial basaltic flow : applications to 59 Apollo-17 mare basaltic fragments

A spectrophone study of vibrational relaxation in methane

Use of Targeted and Non-Targeted Analysis to Study Complex PAH Environmental Mixtures

Structure-property Relationships of Transition Metal Oxides Containing Precious Metals

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