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Filtering by: Creator Ostermann, Stacey D. Remove constraint Creator: Ostermann, Stacey D. Decade 2020-2029 Remove constraint Decade: 2020-2029

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  • Chronic Toxicological Effects in Daphnia magna from Exposure to PMMA Nanoplastics

    Creator:
    Brown, Hans
    Abstract:
    Plastic pollution is an ever-increasing environmental threat. As large-scale plastics break down to form nanoscale plastics, it is essential to investigate their effects on freshwater ecosystems. With many plastic nanoparticle (NP) studies favoring the effects of common polystyrene (PS) plastics, a gap is formed for other common plastic types like...
    Resource Type:
    Honors College Thesis
    Full Text:
    approved: _____________________________________________________ Stacey Harper Plastic pollution is an

  • Environmental Transformations in Hydrophobicity of TiO2 P-25 Nanoparticles in Alsea River Waters

    Creator:
    Boenisch, Kylie
    Abstract:
    Hydrophobic titanium dioxide (TiO2) nanoparticles (NPs) are prevalent in industry and manufacturing. They are known for their white pigmentation, are found in sunscreens, paints, cosmetics, and are frequently used in wastewater treatment. Understanding the physicochemical properties of TiO2 P-25 NPs, such as hydrophobicity, are essential when determining their fate, transport,...
    Resource Type:
    Honors College Thesis
    Full Text:
    :_____________________________________________________ Stacey Harper Hydrophobic titanium dioxide (TiO2) nanoparticles (NPs) are prevalent in

  • Developmental effects of micro- and nanoscale tire particles and recycled rubber on zebrafish

    Creator:
    Mottern, Taylor H.
    Abstract:
    Plastics have become an essential part of everyone lives, found in almost every product made today. Tires only make up a fraction of these products but as their use increasing so does the microplastics that flake off. Many studies have evaluated the toxic effects of tire particles on aquatic environments...
    Resource Type:
    Honors College Thesis
    Full Text:
    rubber on zebrafish. Abstract approved: Stacey Harper Plastics have become an essential

  • Black Sermonology and Gospel Music: A Corpus Based Study

    Creator:
    Horne, Stacey H.
    Abstract:
    Spirituality is an important component in the lives of many Black Americans. Black American life has spirituality woven into multiple aspects. From what clothes to wear, what words to use when creating a dialogue with others, which television shows to watch, which jobs to pursue, how to treat those who...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF Stacey H

  • Assessing the toxicity of nanoplastics using the primary human bronchial epithelial model

    Creator:
    Germano, Francesca
    Abstract:
    Emerging data showing the presence of atmospheric microplastics (MPs) has recently raised awareness surrounding the potential of human nanoplastics (NPs) exposure. Due to factors such as weathering, UV exposure, and other biodegradation processes, plastic pollution in the environment breaks down over time into micro (<5 micrometers) and nanoscale (<1000nm) particles....
    Resource Type:
    Masters Thesis
    Full Text:
    and Stacey Harper Emerging data showing the presence of atmospheric microplastics (MPs) has

  • Addressing the Risks of Nanoscale Polymers: Exposure, Behavior, and Toxicity

    Creator:
    Stine, Jared
    Abstract:
    Nanoscale polymers (including nanoplastics) are widely present through commerce and make their way into the environment. As the improper disposal of plastic waste leads to continued accumulation and degradation of plastic pollution, the presence of plastic particles less than 1 micron (μm) in size (nanoplastics) will increase. Heightened concern over...
    Resource Type:
    Dissertation
    Full Text:
    approved: ______________________________________________________ Stacey L. Harper Nanoscale

  • Marine Heatwaves Influence Depth Preferences of Chinook Salmon (Oncorhynchus tshawytscha)

    Creator:
    Teahan, Andrew
    Abstract:
    Marine heatwaves have become more common over the past several years. The 2014-2015 ‘warm blob’ had profound effects on marine ecosystems in the Northeast Pacific. Given the particular habitat needs of Chinook Salmon (Oncorhynchus tshawytscha) we wanted to examine the impacts of the heatwave on Chinook depth distribution. We examined...
    Resource Type:
    Masters Thesis
    Full Text:
    members Stacey Miller and M. Renee Bellinger, program director Flaxen Conway, lab members David Jacobson

  • Ingestion of Microplastics in the Juvenile Black Rockfish (Sebastes melanops) from Oregon Coastal Sampling Sites

    Creator:
    Arnold, Madison A.
    Abstract:
    Microplastics (<5mm) are a ubiquitous environmental pollutant that have the potential to cause significant harm in many fish species. Therefore, understanding the quantities at which they are being consumed by living organisms is crucial for characterizing risk. There are currently gaps in the microplastic literature regarding microplastic data from finfish...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    ://doi.org/10.1016/j.scitotenv.2018.06.313. Athey, Samantha N., Samantha D. Albotra, Cessely A. Gordon

  • Characterizing Microplastic Ingestion in Black Rockfish (Sebastes melanops) along the Oregon Coast

    Creator:
    Lasdin, Katherine S.
    Abstract:
    Microplastics (<5mm diameter) are present in a considerable number of marine and aquatic species. Understanding which species, the global spatial distribution, and what quantities of microplastics are present is extremely important for understanding the potential impacts they could have on recreationally important organisms and for the assessment of risk. We...
    Resource Type:
    Masters Thesis
    Full Text:
    to thank my co- advisor, Scott Heppell, and my committee members, Dr. Stacey Harper, Dr. Vrushali

  • The Promise and Unfinished Business of Title IX

    Creator:
    Mannen, Noelle
    Abstract:
    The law commonly referred to as Title IX, which was passed in 1972, called for an end to sex-based discrimination in educational and federally-funded settings. Before long, it became particularly associated with the quest for equality for women’s sports. As Title IX was a major catalyst in advancing and even...
    Resource Type:
    Masters Thesis
    Full Text:
    McKiel, Mark Edwards, and Stacey Smith – have dedicated their time and attention, and have shown