Index Catalog // ScholarsArchive@OSU

Light quality manipulation for the solvent extraction of phycocyanin from Oregon freshwater cyanobacteria

Creator:: Gregor, Katelin
Abstract:: Phycocyanin, a photosynthetic pigment-protein complex produced by cyanobacteria, has critical value in the medical field at high purity. Costs associated with the extraction of this pigment are high, emphasizing the importance of optimal growth conditions. The aim of this study was to investigate potential commercial producers of phycocyanin by evaluating...
Resource Type:: Honors College Thesis

Understanding polycyclic aromatic hydrocarbon (PAH) toxicity and inflammation in human bronchial epithelial cells

Creator:: Valdez, Teresa
Abstract:: There is increased emphasis on understanding cumulative risk from the combined effects of chemical and non-chemical stressors as it relates to public health. Recent animal studies have identified pulmonary inflammation as a possible modifier and risk factor for chemical toxicity in the lung after exposure to inhaled pollutants; however, little...
Resource Type:: Honors College Thesis

A Comparative Analysis of Mercury and Lead in Sindoor from the U.S. and Bangladesh

Creator:: Breen, Anna K.
Abstract:: Heavy metals have historically been popular for use in cosmetics manufacturing due to the colorful pigmentation of heavy metal compounds. In the case of sindoor, a cosmetic used by married Hindu women for religious purposes, mercury sulfide, lead tetroxide, and lead chromate are compounds suspected to still be involved in...
Resource Type:: Honors College Thesis

An Evaluation of Staffing Needs at the Health Clinic in Maunatlala, Botswana

Creator:: Bedge, Sonya S.
Abstract:: As part of the Botswana Global Learning Internship Program, a qualitative study was conducted regarding the current staffing conditions at the local village health clinic in Maunatlala, Botswana. This was a month-long project conducted over the summer of 2018. Students from Oregon State University lived in the village of Maunatlala...
Resource Type:: Honors College Thesis

Insights into the Host Range, Population Decline, and Pathogenicity to Potato of Globodera ellingtonae

Creator:: Baker, Hannah V.
Abstract:: This thesis project has the following specific objectives: (i) Determine pathogenicity of Globodera ellingtonae to potato utilizing two trials conducted over a 16 week period, (ii) Elucidate the host range of G. ellingtonae using a variety of different Solanum weed species and crop species, and (iii) Characterize population decline of...
Resource Type:: Honors College Thesis

De novo Discovery of Novel Long Noncoding RNAs in the North American Beaver

Creator:: Kashyap, Amita
Abstract:: Long noncoding RNAs (lncRNAs) are RNA molecules that are at least 200 nucleotides long and do not encode proteins. lncRNAs have roles in gene regulation, chromatin epigenetics, and molecular scaffolding. In light of mounting evidence implicating species-specific noncoding RNAs and gene regulatory mechanisms in species adaptations, it is reasonable to...
Resource Type:: Honors College Thesis

Discovery and Characterization of New Cyanobacterial Natural Products from Moorea sp

Creator:: Cowley, Elise Shylo
Abstract:: Natural products (secondary metabolites) are small organic molecules derived from plants, microbes, and marine organisms that have served as a diverse source of useful compounds pharmaceuticals. New biologically active natural products are critical as anti-infective and cancer drug leads. Cyanobacteria, or blue-green algae, produce diverse cytotoxic metabolites that represent potential...
Resource Type:: Honors College Thesis

Probing Circadian Clock-Steroid Receptor Interactions in GnRH Neurons

Creator:: Grimwood, Victoria J.
Abstract:: Endogenous circadian clock regulation is essential to normal rhythmicity, particularly the timing of hormone release in the brain. In the context of mammalian reproduction, a surge of a specific hormone, gonadotrophin-releasing hormone (GnRH), initiates a surge of luteinizing hormone (LH) from the pituitary gland, which is required for ovulation in...
Resource Type:: Honors College Thesis

DNA Mismatch Repair-Dependent Suppression of Genotoxicity of Benzo[a]pyrene Diol Epoxide

Creator:: Kernan, Casey P.
Abstract:: DNA mismatch repair (MMR) plays an important role in preserving genomic stability and reducing cancer risk. Environmental exposures to polycyclic aromatic hydrocarbons (PAHs) are believed to contribute significantly to carcinogenesis. PAHs are found in food, air, water and soil and upon bioactivation can form diol epoxides which are electrophilic in...
Resource Type:: Presentation and Undergraduate Thesis

Response of reef fish assemblages to overgrowth of the hydrocoral Millepora complanata by the crustose alga Ramicrusta sp.

Creator:: Adams, AnnaRose
Abstract:: Natural disturbances and human activities can alter the benthic composition of coral reefs and other marine ecosystems. Reef fishes that associate with particular structures on the sea floor, such as coral heads, may be vulnerable to perturbations of those habitats. The spread of a newly discovered crustose alga (Ramicrusta sp.)...
Resource Type:: Honors College Thesis

Survey of rhizosphere associated entomopathogenic fungi on small fruits and Christmas trees in the Willamette Valley, OR

Creator:: Fisher, Joanna J.
Abstract:: The entomopathogenic fungi Metarhizium anisopliae and Beauveria bassiana are commercially available as microbial control agents for the black vine weevil, Otiorhynchus sulcatus (F.) (Coleoptera: Curculionidae), the key root-feeding insect pest in Pacific Northwest small fruits and ornamentals. Understanding habitat selection is critical to improve the efficacy, persistence and cost of...
Resource Type:: Honors College Thesis

ScholarsArchive@OSU

Light quality manipulation for the solvent extraction of phycocyanin from Oregon freshwater cyanobacteria

Understanding polycyclic aromatic hydrocarbon (PAH) toxicity and inflammation in human bronchial epithelial cells

A Comparative Analysis of Mercury and Lead in Sindoor from the U.S. and Bangladesh

An Evaluation of Staffing Needs at the Health Clinic in Maunatlala, Botswana

Insights into the Host Range, Population Decline, and Pathogenicity to Potato of Globodera ellingtonae

De novo Discovery of Novel Long Noncoding RNAs in the North American Beaver

Discovery and Characterization of New Cyanobacterial Natural Products from Moorea sp

Probing Circadian Clock-Steroid Receptor Interactions in GnRH Neurons

DNA Mismatch Repair-Dependent Suppression of Genotoxicity of Benzo[a]pyrene Diol Epoxide

Response of reef fish assemblages to overgrowth of the hydrocoral Millepora complanata by the crustose alga Ramicrusta sp.

Survey of rhizosphere associated entomopathogenic fungi on small fruits and Christmas trees in the Willamette Valley, OR

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