Index Catalog // ScholarsArchive@OSU

Toward understanding the nature of the soil microsite in relation to nitrogen and carbon cycling

Creator:: Cliff, John B.
Abstract:: My research has focused on understanding N and C cycling in soils at small scales. Isotope dilution methods commonly used to estimate gross rates of soil chemical transformations assume homogeneous distribution of label. I explored the effects of diffusion limitations on isotope dilution experiments in soil aggregates using spherical diffusion-reaction...
Resource Type:: Dissertation
Full Text:: domain solutions were numerically inverted into the time domain using the algorithm of de Hoog et al

Tracer experiments in a non-uniform porous medium : implications of diffusive mass transfer on the late-time breakthrough behavior

Creator:: Freiherr von Schwerin, Claudius
Abstract:: Mass transfer processes were evaluated in an artificial, non-uniform porous medium with a power law distribution of diffusion rate coefficients obtained from physical characterization of solute and porous medium. Breakthrough curves of several pulse experiments conducted at different velocities were compared (1) to analytical expressions for concentrations at mass transfer...
Resource Type:: Masters Thesis
Full Text:: then numerically inverted using the de Hoog algorithm [de Hoag, 1982]. Simulations and estimations

Systematics of the genus Torrubiella

Creator:: Johnson, Desiree M.
Abstract:: Torrubiella is a genus of entomopathogenic fungi in the Clavicipitaceae (Ascomycota). Species of the genus produce superficial perithecia on a loose mat of hyphae that forms directly on the host. The genus is estimated to contain about 70 species. Torrubiella is hypothesized to be a close relative of Cordyceps because...
Resource Type:: Masters Thesis
Full Text:: . Granulomanus de Hoog and Samson in de Hoog (Persoonia 10:70, 1978) Cultural characters unknown. Sporulation

Hydro-biogeochemical coupling at the hillslope and catchment scale

Creator:: van Verseveld, Willem J.
Abstract:: The specific objectives of this dissertation are to determine subsurface flow behaviors across different antecedent wetness conditions from a top-down perspective and to mechanistically assess the hydrological controls on DOC and N transport at the hillslope and catchment scale. The study area is a small catchment where hillslopes issue directly...
Resource Type:: Dissertation
Full Text:: Water Resources Association, 34, 765-785. Boyer, E. W., G. M. Hornberger, K. E. Bencala, and D. M

Systematics and phylogeny of Cordyceps and the Clavicipitaceae with emphasis on the evolution of host affiliation

Creator:: Sung, Gi-Ho
Abstract:: Cordyceps is a genus of perithecial ascomycetes. It includes over 400 species that are pathogens of arthropods and parasites of the truffle genus Elaphomyces. Based on the morphology of cylindrical asci, thickened ascus apices and filiform ascospores, it is classified in the Clavicipitaceae (Hypocreales), which also includes endophytes and epiphytes...
Resource Type:: Dissertation
Full Text:: -517. Castlebury, L. A., A. Y. Rossman, G.-H. Sung, A. S. Hyten, and J. W. Spatafora. 2004. Multigene

A proteomic approach to 1,2-dichloroethane bioactivation and reaction with redox-active protein disulfide isomerase

Creator:: Kaetzel, Rhonda Sue
Abstract:: Protein disulfide isomerase (PDI), a member of the thioredoxin superfamily, contains two domains with significant sequence homology to the active sites in thioredoxin. PDI facilitates the folding of nascent proteins in the endoplasmic reticulum (ER), binds hormones and Ca²⁺, catalyzes the glutathione dependent reduction of dehydroascorbate, serves as a major...
Resource Type:: Dissertation
Full Text:: -ch loroethyl)g lutathione (CEG), decreased activity and protein thiols of PDI. CEG produced two

The effects of protein associations on pyrimidine deoxyribonucleotide biosynthesis

Creator:: McGaughey, Kathleen M.
Abstract:: The faithful replication of DNA depends on the appropriate balance of DNA precursors. From studies conducted in bacteriophage T4, models for deoxyribonucleotide biosynthesis producing pools appropriate for DNA replication have made it possible to understand more complex systems. A portion of that body of evidence supports the concept that deoxyribonucleotide...
Resource Type:: Dissertation
Full Text:: [G. Mosig]) GENOMIC MAP OF BACTERIOPHAGE T4 DNA pap.r,,. a1ct117 . DNA DNADNA A/ DNA hflcfl

Characterization of the molecular foundations and biochemistry of alkane and ether oxidation in a filamentous fungus, a Graphium species.

Creator:: Skinner, Kristin M.
Abstract:: Graphium sp., a eukaryotic alkanotroph, is able to oxidize small-molecular weight gaseous n-alkanes, diethyl ether and the branched ether, methyl tert butyl ether (MTBE). However, information regarding the biochemistry of fungal-mediated alkane and ether metabolism is limited, and questions regarding the identity of alkane oxidation catalysts and the genetic underpinnings...
Resource Type:: Dissertation
Full Text:: collectively affect diiron or copper-containing enzymes (Ortiz de Montellano and Reich, 1986; Hyman and Arp

A model-based methodology for the evaluation of computerized group decision making

Creator:: McNown Perry, Cindy A.
Abstract:: Increased global competition is forcing organizations to increase their use of group decision making today. Computerized group decision support aids (CGDSAs) are being developed to improve the efficiency of these groups and to improve decision quality. Even though the use of CGDSAs has increased, very little research has been done...
Resource Type:: Dissertation
Full Text:: Industrial Engineering lead of Department of De ial and I understand that my dissertation will become

ScholarsArchive@OSU

Toward understanding the nature of the soil microsite in relation to nitrogen and carbon cycling

Tracer experiments in a non-uniform porous medium : implications of diffusive mass transfer on the late-time breakthrough behavior

Systematics of the genus Torrubiella

Hydro-biogeochemical coupling at the hillslope and catchment scale

Systematics and phylogeny of Cordyceps and the Clavicipitaceae with emphasis on the evolution of host affiliation

A proteomic approach to 1,2-dichloroethane bioactivation and reaction with redox-active protein disulfide isomerase

The effects of protein associations on pyrimidine deoxyribonucleotide biosynthesis

Characterization of the molecular foundations and biochemistry of alkane and ether oxidation in a filamentous fungus, a Graphium species.

A model-based methodology for the evaluation of computerized group decision making

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