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Filtering by: Creator Madden, Christopher Remove constraint Creator: Madden, Christopher Degree Name Master of Science (M.S.) Remove constraint Degree Name: Master of Science (M.S.) License All rights reserved Remove constraint License: All rights reserved

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  • Modeling disease gradients and understanding the spread of wheat stripe rust using simulated epidemics

    Creator:
    Sackett, Kathryn E.
    Abstract:
    Primary disease gradients of wheat stripe rust, caused by the aerially dispersed fungal pathogen Puccinia striformis, were measured in Madras and Hermiston, OR in the springs of 2002 and 2003. Disease foci were created by inoculating a 1.52m x 1.52m area in each of three replicate field plots (6.1m wide...
    Resource Type:
    Masters Thesis
    Full Text:
    approved: Christopher C. Mundt Primary disease gradients of wheat stripe rust, caused by the aerially

  • Science Takes Flight: Detection of Black Leg on Turnip Gray Mold on Hemp

    Creator:
    Bates, Taylor A.
    Abstract:
    Disease detection through traditional techniques such as scouting fields on foot, molecular assays, or morphological identification of plant pathogens is time consuming and costly. Disease diagnosis in the field can be extremely subjective, and largely depends on the experience and knowledge of pathogen identification and disease quantification. This thesis provides...
    Resource Type:
    Masters Thesis
    Full Text:
    , camera, and software. I would like to thank Dr. Christopher Still for being my graduate representative

  • Diversity and Impact of Soft Rot Pathogens of Potato in the Columbia Basin

    Creator:
    Brazil, Jessie A.
    Abstract:
    Bacterial soft rot of potato (Solanum tuberosum), caused by Pectobacterium and Dickeya species, is among the most common and destructive potato diseases in the United States. These pathogens cause a variety of vascular wilts, and in potato cause a disease complex that includes tuber soft rot, blackleg, aerial stem rot,...
    Resource Type:
    Masters Thesis
    Full Text:
    thank Dr. Ken Johnson, Dr. Christopher Mundt, and Dr. Seri Robinson for taking the time to serve on

  • Identification and distribution of the mating-type locus and development of cleistothecia of Podosphaera macularis

    Creator:
    Wolfenbarger, Sierra N.
    Abstract:
    Podosphaera macularis, causal agent of hop powdery mildew, is known to produce cleistothecia (syn. chasmothecia) in eastern North America and Europe, but ascocarps are not reported from the Pacific Northwestern region of North America. Reasons for the apparent absence of cleistothecia in the Pacific Northwest are unknown. We established that...
    Resource Type:
    Masters Thesis
    Full Text:
    between powdery mildew severity and yield (Lipps & Madden, 1989). It can be more difficult to estimate

  • Protein secondary structure prediction using conditional random fields and profiles

    Creator:
    Shen, Rongkun
    Abstract:
    Protein secondary structure prediction plays a pivotal role in predicting protein folding in three-dimensions. Its task is to assign each residue one of the three secondary structure classes helix, strand, or random coil. This is an instance of the problem of sequential supervised learning in machine learning. This thesis describes...
    Resource Type:
    Masters Thesis
    Full Text:
    Christopher K. Mathews for his continuous support and considerateness. I thank my wife Li Li, my lovely

  • Learning to Estimate Multi-Relation Aggregation Functions

    Creator:
    Jadhav, Rashmi Suresh
    Abstract:
    Multi-relation aggregation queries process the join operator before computing the aggregation function. This join is arguably the most costly operation since traditional join algorithms spend majority of their time trying to join the parts of the relations that do not generate any output tuples. This causes slow response times with...
    Resource Type:
    Masters Thesis

  • Improving the Effectiveness of Answering Keyword Queries Using Effective Subsets

    Creator:
    Khodadadi, Abtin
    Abstract:
    Most database users do not know formal query languages, such as SQL, and prefer to express their information needs using usable query languages, such as keyword queries. Keyword queries, however, are inherently ambiguous and challenging for the database systems to understand and answer effectively. We propose a novel approach to...
    Resource Type:
    Capstone Project
    Full Text:
    Bibliography [1] Sameer Agarwal, Barzan Mozafari, Aurojit Panda, Henry Milner, Samuel Madden, and Ion Stoica

  • Habitat mapping and identifying suitable habitat of Redfish Rocks Pilot Marine Reserve, Port Orford, Oregon

    Creator:
    Amolo, Rizaller C.
    Abstract:
    Establishment of marine protected areas (MPAs) has been documented to effectively manage marine resource's diversity and enhance fisheries productivity. However, there must be a critical consideration of how these sites are selected and the actual description of the site itself. Its effectiveness is greatly dependent on understanding these habitats and...
    Resource Type:
    Masters Thesis
    Full Text:
    inputs to the thesis were valuable. Great thanks to you. To Christopher Romsos, for all the GIS and

  • Collaborative Online Learning For Join Processing

    Creator:
    Xie, Mian
    Abstract:
    Relational binary operators, such as join, are arguably the most costly and frequently used operations in relational data systems. In many join algorithms, the majority of the process time is spent on scanning and attempting to join the parts of the relations that do not satisfy the join condition and...
    Resource Type:
    Capstone Project

  • Combined Effects of Intensive Forest Management and Microclimate on Reproduction in a Cavity-Nesting Songbird

    Creator:
    Jones, Kristin N.
    Abstract:
    Future scenarios of global climate change rely on large-scale climate envelope models that do not account for local climatic conditions to which organisms most closely respond. Shifts in species distributions and phenology driven by climate change are well-documented, yet we lack a strong understanding of how climate change will influence...
    Resource Type:
    Masters Thesis
    Full Text:
    University. Finally, thanks especially to my parents, Korina Layne-Jones and Christopher Jones, for