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Filtering by: Creator van Leeween, P. J. Remove constraint Creator: van Leeween, P. J. Degree Name Doctor of Philosophy (Ph.D.) Remove constraint Degree Name: Doctor of Philosophy (Ph.D.) File Format pdf Remove constraint File Format: pdf

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  • A Corpus Linguistic Study of Grief

    Creator:
    Ramakrishna, Nandini J.
    Abstract:
    The counseling profession has historically adopted a one-size-fits-all approach toward addressing bereavement. However, there is an emerging paradigm-shift in grief therapy that has been enabled by recent research that differentiates, for example, between types of grief and styles of grieving. This research project contributes to this nuanced approach to grief...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF Nandini J

  • Learning-based Techniques for Fast and Robust Motion Planning

    Creator:
    Chow, Scott
    Abstract:
    Motion planning is a cornerstone of autonomous robots, enabling robots to safely and efficiently perform tasks such as package delivery, infrastructure inspection, and manipulation. However, as the field of robotics matures, robotic systems are being developed that (1) are challenging to analytically model, (2) require computationally expensive model-based controllers, and...
    Resource Type:
    Dissertation
    Full Text:
    committee: Drs. Ka- gan Tumer, Cindy Grimm, Naomi T. Fitter, and Camille J. Palmer, thank you for your

  • Ecology and Distribution of Blue Whales in New Zealand Across Spatial and Temporal Scales

    Creator:
    Barlow, Dawn R.
    Abstract:
    The distribution of mobile marine predators often reflects underlying dynamic ecological processes. The geographical focus of this PhD is the South Taranaki Bight (STB) of New Zealand, where wind-driven coastal upwelling generates productivity and prey to support a blue whale foraging ground. The STB is also New Zealand’s most industrial...
    Resource Type:
    Dissertation
    Full Text:
    operating curve (AUC)………………………………………….72 Table 2.4. Results from a Moran’s I test (p-value) to examine

  • The Viability of Container-Based Sanitation as a Tool for Sanitation Coverage in Urban Haiti

    Creator:
    VanRiper, Froggi Ramona
    Abstract:
    Haiti is far from achieving the UN goal of sanitation access for all; 20% Haitians have no sanitation access, and less than 0.1% of urban excreta is safely managed. Container-Based Sanitation (CBS) may be a key tool for achieving equitable sanitation coverage in Haiti’s cities. CBS is a sanitation strategy...
    Resource Type:
    Dissertation

  • Effect of Oregon’s Coordinated Care Organizations on Healthcare Utilization and Maternal and Neonatal Outcomes Among Low-income Women with Chronic Mental-Physical Comorbidities

    Creator:
    Masoumirad, Mandana
    Abstract:
    Background: The number of people diagnosed with chronic physical conditions is increasing in the United States. Chronic mental illnesses are also common in the country. Low-income women and those on Medicaid bear a disproportionate burden of chronic conditions and these conditions significantly contribute to obstetric morbidity. Prioritizing preventive measures and...
    Resource Type:
    Dissertation
    Full Text:
    increase of 0.055 percentage points (𝑝 <0.001) in their probability of timely initiation of prenatal

  • Multiscale Methods and Energy Stable Discretizations for Maxwell’s Equations in Linearand Nonlinear Materials

    Creator:
    Sakkaplangkul, Puttha
    Abstract:
    In this dissertation, we introduce a family of fully discrete finite difference time-domain (FDTD) methods for Maxwell’s equations in linear and nonlinear materials. Onecategory of methods is constructed using multiscale techniques involving operator splittings. We present the sequential splitting scheme, the Strang Marchuk splitting scheme,the weighted sequential splitting scheme including...
    Resource Type:
    Dissertation
    Full Text:
    µ0 ∂H ∂t = ∂E ∂x , (2.15a) ∂D ∂t = ∂H ∂x , (2.15b) ∂P ∂t = J, (2.15c) ∂J ∂t = −1 τ J − ω20P

  • The Impact of Freeze-Thaw Cycles to the Physical and Biogeochemical Properties of Alaskan Permafrost Soils

    Creator:
    Rooney, Erin C.
    Abstract:
    Arctic warming is exposing thawing permafrost to repeated freeze-thaw, a disruptive process that can alter soil biogeochemistry and physical structure. To investigate the impact of permafrost exposure to freeze-thaw, soil response was tested across three scales: 2.5 cm³ aggregates, a forested hillslope, and two sites at contrasting latitudes. XCT imaging...
    Resource Type:
    Dissertation
    Full Text:
    viewing. Change in the connected water volumetric fraction was significant (LME, F = 9.1977, P = 0.0142

  • Using DNA metabarcoding to describe biodiversity and disease dynamics

    Creator:
    Massey, Aimee L.
    Abstract:
    Land-use change, particularly in the form of the conversion of primary forest to forest-matrix systems, alters species communities and species interactions. Describing these often complex and nuanced species responses is one of the great challenges in ecology. Another complementary challenge is finding and using the most efficient means for collecting...
    Resource Type:
    Dissertation
    Full Text:
    . Winchester, J. Gordon-Walker, and P. C. Paquet. 2004. Predators in natural fragments: foraging ecology of

  • Assessing Exposures and Simplifying Complex Mixtures of SVOCs for Hazard Characterization using Alternative Model Systems

    Creator:
    Rivera, Brianna N.
    Abstract:
    Throughout their lifetime individuals are exposed to complex mixtures of chemicals. The study of chemical mixtures is an internationally recognized research priority, but seemingly complex challenge. To reduce the intricacy of studying mixtures, researchers have identified different prioritization methods based on exposure or the toxicity of chemicals. However, understanding the...
    Resource Type:
    Dissertation
    Full Text:
    . Wilson; Formal analysis, B.N. Rivera, L.B. Wilson, D.N. Kim and P. Pande.; Funding acquisition, K.A

  • The Nature of the Discourse on Race and Ethnicity in Play Therapy Literature

    Creator:
    Page, Unique L.
    Abstract:
    Ethical and training standards across counseling-related professions contain competencies related to race and ethnicity as necessary research and practice components. One such counseling-related sub-specialty is Play Therapy, which acknowledges that professionals utilizing play therapy techniques must consider racial and cultural context, trauma, and intersectionality when working with children. However, there...
    Resource Type:
    Dissertation
    Full Text:
    al., 2017). Van Ausdale and Feagin (2001) found that children between the ages of three and five in