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Filtering by: Creator Smith, Thomas N. Remove constraint Creator: Smith, Thomas N. Decade 2020-2029 Remove constraint Decade: 2020-2029 Degree Name Doctor of Philosophy (Ph.D.) Remove constraint Degree Name: Doctor of Philosophy (Ph.D.)

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  • The influence of hop drying parameters on aroma hop quality in American deep bed drying

    Creator:
    Rubottom, Lindsey N.
    Abstract:
    American hop growers have historically dried hops in the range of 140-155°F/ 60-68°C using deep bed kilns (24 – 32 inches/ 60 – 81 cm), but over the last 10 years they have shifted to lower temperatures (125 -135 °F/ 52 – 57°C) for drying new American aroma cultivars. Reduced...
    Resource Type:
    Dissertation
    Full Text:
    N. Rubottom (graduate student) and Dr. Thomas H. Shellhammer (major advisor). Lindsey designed

  • Counseling Sex Trafficking Survivors: Considerations for the Mental Health Profession

    Creator:
    Mays, Cheri N.
    Abstract:
    As more awareness of the global issue of sex trafficking comes to light, counselors must prepare to provide therapeutic services to this specific client population (Litam & Lam, 2021). Individuals who have survived sex trafficking are entering mental health counseling practices and community agencies regularly (Ide & Mather, 2019); yet,...
    Resource Type:
    Dissertation
    Full Text:
    investigated predictors for early career mental health professionals’ (N = 113) preparedness to provide

  • Creating Community: A Case Study of Students’ Experiences in Inquiry-Based Learning

    Creator:
    Schaub, Branwen
    Abstract:
    We now have broad consensus in the mathematics education research community that active, inquiry-based classrooms provide a wealth of learning benefits for students (Freeman et al., 2014; Laursen et al., 2014; Theobald et al., 2020). Classrooms that utilize inquiry throughout the entire structure of the course, as opposed to the...
    Resource Type:
    Dissertation
    Full Text:
    approved: ______________________________________________________ Elise N. Lockwood We now have

  • Insights into an Invasive Jumping Earthworm: Assessing the Invasion Risk and Influence on Soil Organic Matter by Amynthas agrestis in Western Oregon

    Creator:
    Tucker Serniak, Linda F.
    Abstract:
    Increased globalization has greatly increased the ability for species to travel outside of their native range and reach all parts of the world. While most species do not have an impact in new habitats, a small percentage are able to establish a new population and spread, causing ecological damage and...
    Resource Type:
    Dissertation
    Full Text:
    , Smith SM, Basiliko N (2013) Indirect and direct effects of exotic earthworms on soil nutrient and

  • The Social Interactions of Pseudomonas aeruginosa

    Creator:
    Smith, Parker
    Abstract:
    Pseudomonas aeruginosa is a ubiquitous environmental microbe, opportunistic pathogen, and a highly social organism. P. aeruginosa utilizes a wide array of cooperative behaviors to adapt to the environmental conditions around it. These behaviors include quorum sensing (QS), a form a cell-to-cell signaling that coordinates the expression of secreted products in...
    Resource Type:
    Dissertation
    Full Text:
    Smith for the degree of Doctor of Philosophy in Microbiology presented on March 2, 2023 Title: The

  • Visualization of N-ary Relationships

    Creator:
    Qu, Botong
    Abstract:
    N-ary relationships, which relate N entities where N is not necessarily two, are omnipresent in real life. In this thesis, we develop a visualization technique for N-ary relationships. First, we propose a visual metaphor that utilizes vertices and polygons to represent entities and N-ary relationships. Based on this visual metaphor,...
    Resource Type:
    Dissertation
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    degree of Doctor of Philosophy in Computer Science presented on May 28, 2021. Title: Visualization of N

  • Topometric Analysis for High-throughput Phenotyping of Seed Shattering in Perennial Ryegrass (Lolium perenne L.)

    Creator:
    Tubbs, Travis B.
    Abstract:
    Seed shattering is a constraint to improvement of seed yield in Lolium perenne L. and as a result, seed retention is an essential trait for this valuable crop. Field studies were conducted near Corvallis, OR in two years (2017-2018 and 2018-2019) to identify genetic variation for seed retention and to...
    Resource Type:
    Dissertation
    Full Text:
    perenne L.) Abstract approved: ______________________________________________________ Thomas G

  • Using the Microbial Tree of Life to Describe Mammalian Health and Disease

    Creator:
    Arnold, Holly Kristin
    Abstract:
    The past decade of research has potentiated a revolution in our understanding of mammalian health and evolution by revealing that the gut microbiome plays a central role in mammalian physiology. Our ability to unlock this potential hinges upon the identification of specific groups of gut microbes that elicit effects on...
    Resource Type:
    Dissertation
    Full Text:
    Thomas J. Sharpton The past decade of research has potentiated a revolution in our understanding

  • Ecophylogenetic Characterization of the Gut Microbiome of At-risk Companion and Food Animals

    Creator:
    Kirchoff, Nicole S.
    Abstract:
    Agricultural and companion animals are integral to our way of life as they provide us with nourishment, financial resources, transportation, and companionship. However, pets, managed animals in the agricultural industry, as well as wild populations of food animals are all subject to health and mortality risks. The gut microbiome is...
    Resource Type:
    Dissertation
    Full Text:
    approved: ______________________________________________________ Thomas J. Sharpton

  • Towards Pactive (Passive + Active) Sensing for Security Applications

    Creator:
    Menon, Arya
    Abstract:
    Increasing threats of terrorism and contraband smuggling have led to a growing interest in millimeter wave/ THz security sensors. Recently, systems combining active and passive sensing into one unit have been proposed where the active mode provides information on range and reflectivity, and the passive mode complements the active by...
    Resource Type:
    Dissertation
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    Abstract approved: ______________________________________________________ Thomas M. Weller