Index Catalog // ScholarsArchive@OSU

Nanostructured Diatom Biosilica Stationary Phase for Thin-layer Chromatography Separation of Polar, Ionic Analytes

Creator:: Kraai, Joseph A.
Abstract:: Despite an expansive selection of available thin-layer chromatography (TLC) stationary phases, almost none are well-suited for separation of polar, ionic analytes. This work demonstrated that a highly porous stationary phase layer comprised solely of nanostructured biosilica frustules, isolated from living Pinnularia sp. diatom microalgae, improved TLC separation of the polar,...
Resource Type:: Masters Thesis

Effects of High-docosahexaenoic Acid Microalgae and Choline in the Hen Diet on Egg Production and Lipid Metabolism

Creator:: Yonke, Joseph A.
Abstract:: The objectives of the current study were to 1) investigate the effect a high-docosahexaenoic acid (C22:6 n-3, DHA) microalgae product (MAL), and choline dosage in diets containing MAL, on egg production performance, physical egg quality, and nutritional parameters, and 2) determine whether choline dosage influences hepatic lipid metabolism of...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Joseph A. Yonke

Spatiotemporal Phytohormone Distributions in Developing Pinot Noir Berries and the Effects of Two Viticulture Practices Thereon

Creator:: Schmidt, Joseph A.
Abstract:: In recent years, many studies have focused on the molecular and biochemical mechanisms regulating the development of wine grapes. The course of grape berry development is directed by genetic design and is mediated by phytohormones, which regulate grape berry growth and development by orchestrating a complex network of interacting genes,...
Resource Type:: Masters Thesis
Full Text:: Thereon. by Joseph Aaron Schmidt A THESIS Submitted to Oregon State University in

Embryonic and Larval Zebrafish Bioassays for Biomedical Research : The Larval Photomotor Response Screening Assay and Phenotype

Creator:: Fisher, Joseph A.
Abstract:: Laboratories around the world are using the zebrafish model for biomedical research and conducting investigations using morphological, physiological, behavioral, and genomic endpoints. All assays provide information, but physiological and behavioral endpoints or phenotypes are a fast way to understand how an animal is responding to its environment. We investigate the...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Joseph A. Fisher for the

Identifying breeder-friendly INDELs that co-seggregate with SNPs associated with QTL for resistance to Fusarium solani root rot in snap bean (Phaselous vulgaris)

Creator:: Schmidt, Joseph A.
Abstract:: Fusarium solani is a chronic disease that causes root rot which affects bean production worldwide. Recently, a QTL map was generated which identified several SNPs which were found to be associated with resistance to the pathogen. To be useful in a breeding program, INDELs must be identified which co-seggregate with...
Resource Type:: Research Paper and Presentation

Methods to improve the reliability and resiliency of near/sub-threshold digital circuits

Creator:: Crop, Joseph A.
Abstract:: Energy consumption is one of the primary bottlenecks to both large and small scale modern compute platforms. Reducing the operating voltage of digital circuits to voltages where the supply voltage is near or below the threshold of the transistors has recently gained attention as a method to reduce the energy...
Resource Type:: Dissertation
Full Text:: Near/Sub-Threshold Digital Circuits AN ABSTRACT OF THE DISSERTATION OF Joseph A. Crop for the

Immunology beliefs as a factor in vaccine opposition among complementary and alternative medical providers

Creator:: Bean, Sandra J. and Catania, Joseph A.
Abstract:: Objectives: Parental pediatric vaccine decisions are influenced by parents' health provider networks. Complementary and alternative medical providers may be key influences in the networks of those parents who do not vaccinate their children. Methods: From March to July 2013, we conducted semi-structured interviews of Oregon complementary and alternative medical providers...
Resource Type:: Article
Full Text:: opposition among complementary and alternative medical providers Sandra J Bean and Joseph A Catania

Flowering Patterns of Understory Herbs 30 Years after Disturbance of Subalpine Old-Growth Forests by Tephra from Mount St. Helens

Creator:: Zobel, Donald B. and Antos, Joseph A.
Abstract:: Premise of research. We sought to determine the role of flowering in recovery of understory herbs from a major disturbance and to determine the effects of plant and environmental factors on flowering patterns. Methodology. We counted flowering and nonflowering shoots in permanent plots eight to 10 times over a 30-year period for...
Resource Type:: Article
Full Text:: BY TEPHRA FROM MOUNT ST. HELENS Donald B. Zobel1,* and Joseph A. Antos† *Botany and Plant Pathology

A Social-Ecological Perspective on Vulnerable Youth: Toward an Understanding of Sexual Development Among Urban African American Adolescents

Creator:: Catania, Joseph A. and Dolcini, M. Margaret
Abstract:: The authors employ a social-ecological framework to aid our understanding of the complex array of factors in the immediate and broader environment that influence adolescent sexual development. Further, sexual development is viewed as normative and critical to positive growth. The authors provide an overview of the Two-Cities Study, a multi-stage...
Resource Type:: Article
Full Text:: : Toward an Understanding of Sexual Development Among Urban African American Adolescents Joseph A

Effect of metformin exposure on growth and photosynthetic performance in the unicellular freshwater chlorophyte, Chlorella vulgaris

Creator:: Cummings, Brittany M., Needoba, Joseph A., and Peterson, Tawyna D.
Abstract:: Many pharmaceuticals have negative effects on biota when released into the environment. For example, recent work has shown that the commonly prescribed antidiabetic drug, metformin (N,N-dimethylbiguanide), has endocrine disrupting effects on fish. However, effects of metformin on aquatic primary producers are poorly known. We exposed cultured isolates of a freshwater...
Resource Type:: Article
Full Text:: , Chlorella vulgaris Brittany M. CummingsID, Joseph A. NeedobaID, Tawnya D. PetersonID* Oregon Health

ScholarsArchive@OSU

Nanostructured Diatom Biosilica Stationary Phase for Thin-layer Chromatography Separation of Polar, Ionic Analytes

Effects of High-docosahexaenoic Acid Microalgae and Choline in the Hen Diet on Egg Production and Lipid Metabolism

Spatiotemporal Phytohormone Distributions in Developing Pinot Noir Berries and the Effects of Two Viticulture Practices Thereon

Embryonic and Larval Zebrafish Bioassays for Biomedical Research : The Larval Photomotor Response Screening Assay and Phenotype

Identifying breeder-friendly INDELs that co-seggregate with SNPs associated with QTL for resistance to Fusarium solani root rot in snap bean (Phaselous vulgaris)

Methods to improve the reliability and resiliency of near/sub-threshold digital circuits

Immunology beliefs as a factor in vaccine opposition among complementary and alternative medical providers

Flowering Patterns of Understory Herbs 30 Years after Disturbance of Subalpine Old-Growth Forests by Tephra from Mount St. Helens

A Social-Ecological Perspective on Vulnerable Youth: Toward an Understanding of Sexual Development Among Urban African American Adolescents

Effect of metformin exposure on growth and photosynthetic performance in the unicellular freshwater chlorophyte, Chlorella vulgaris

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