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Filtering by: Creator Miranda-Garcia, Omar Remove constraint Creator: Miranda-Garcia, Omar Degree Name Doctor of Philosophy (Ph.D.) Remove constraint Degree Name: Doctor of Philosophy (Ph.D.)

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  • New bioactive natural products from marine algae and cyanobacteria

    Creator:
    Sabry, Omar Mohamed
    Abstract:
    This thesis is an account of investigation on the natural products deriving from various marine algae and has resulted in the discovery of eleven novel bioactive metabolites. Isolation and characterization of these new molecules were carried out using different chromatographic techniques and by analyses of different spectroscopic data, respectively. Using...
    Resource Type:
    Dissertation
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    AN ABSTRACT OF THE THESIS OMAR MOHAMED SABRY FOR THE DEGREE OF

  • The impact of grazing on forage quantity, quality and foliar cover of the herbaceous vegetation in the Mamora Cork Oak Forest, Morocco

    Creator:
    Mejjati-Alami, Mohammed
    Abstract:
    This research was conducted in the Mamora cork oak forest of Morocco to: (1) Describe the impacts of sheep grazing (none, 35% use, 70% use) in March, April, May and June of 1987 and 1988 on seasonal forage production; (2) evaluate the effects of these factors on annual changes in...
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    Dissertation
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    facilities. My sincere appreciation is expressed to Dr. Omar Berkat, member of my committee and Head of the

  • Access and Utilization of Mental Healthcare Services Among Children and Adolescents in India – A mixed-methods study

    Creator:
    Vasanth Rao, Deeksha
    Abstract:
    Background: According to the National Mental Health Survey (NMHS), the treatment gap of any mental disorder in India among the general population was reported to be as high as 83% (R. S. Murthy, 2017). There is insufficient evidence currently describing the treatment gap among the child and adolescent population. Given...
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    Dissertation
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    Sunil Khanna, Jonathan Garcia Background: According to the National Mental Health Survey (NMHS

  • Water management effects on birdsfoot trefoil seed production

    Creator:
    García-Díaz, Carlos Alberto
    Abstract:
    There is no information available on water management of birdsfoot trefoil grown for seed. Information is also not available describing how to minimize seed losses due to shattering in order to obtain consistently high birdsfoot trefoil seed yields. The objectives of this research are to: (i) quantify crop water use,...
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    Dissertation
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    AN ABSTRACT OF THE THESIS OF Carlos Alberto Garcia -Diaz for the degree of Doctor of Philosophy in

  • Harnessing Heterogeneity in Human Gut Microbiome Data

    Creator:
    Tataru, Christine
    Abstract:
    The focus of this thesis is to design, characterize, and apply novel computational methods and molecular systems to interrogate heterogeneous human gut microbiome-related phenomena. In Chapter 2, I design, implement, and characterize a method for embedding co-occurrence patterns derived from massive 16s amplicon datasets. I use this method to 1....
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    Dissertation
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    interpretation, critical revision of the article Maya Livni, Elizaveta Zhivaya, Grace Deitzler, Manuel Garcia

  • Youth Wellbeing During the First School Year of the Covid-19 Pandemic: An Intersectional Analysis

    Creator:
    Fenske, Linda J.
    Abstract:
    During the first full school year of the Covid-19 pandemic, two central contexts for adolescent development—home and school—changed utterly. In Oregon, most middle- and high schoolers attended school entirely remotely from the beginning of the pandemic, in March, 2020, through the end of April, 2021, removing both the supports available...
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    Dissertation
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    ., 2018; García-Coll et al., 1996; Ponzetti, 2016; Tynes et al., 2012). In addition, the climate at

  • Investigating the Mechanisms for the Effects of Nitrate Treatment on Exercise Performance and Energy Metabolism

    Creator:
    Keller, Rosa M.
    Abstract:
    Dietary nitrate (NO3-), consumed primarily from leafy green and root vegetables, lowers blood pressure, improves vascular function and aerobic exercise performance. This performance-enhancing effect of nitrate supplementation is largely attributed to the increased bioavailability of the signaling molecule, nitric oxide (NO). Nitric oxide is a ubiquitous free radical signaling molecule...
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    Dissertation
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    Alcazar Magana, Dr. Ralph Reed, Dr. Val Miranda, Dr. Jae Woo Choi, Lauren Murphy, and Jessica Li

  • Environmental and Community Exposures and Children’s Infectious Diseases in Bangladesh

    Creator:
    Ahmed, Sharia M.
    Abstract:
    Under-5 mortality has decreased globally, but millions of children still die every year. In Bangladesh, respiratory infection and diarrheal disease remain leading causes of morbidity and mortality for children under-5, despite incredible progress in the past three decades. Immune system development begins in utero and continues into adulthood. Toxic environmental...
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    Dissertation
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    interpretation of findings, and reviewed manuscripts one and three. Sakila Afroz Joya, Dr. M. Omar

  • Modulation of metabolic syndrome by soy isoflavones : in-vitro and in-vivo models

    Creator:
    Luo, Ting
    Abstract:
    Metabolic syndrome is a problem affecting people around the world. In a number of studies, soy intake has been documented to possess antidiabetic and anticardiovascular effect. My project is focused on the impact of the intake of compounds found within soy, the isoflavones, their impact on metabolic syndrome symptoms, and...
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    would like to thank my lab mates Sarah Snyder, Bingxin Zhao, Omar Miranda, Allysa Adamson, Geoffrey

  • Environmental Metal Exposures and Effects on Maternal and Child Health in Bangladesh

    Creator:
    Andrews, Faye V.
    Abstract:
    Bangladesh is a developing country with burdens of environmental pollution and disparities in maternal and child health. Arsenic, manganese, and lead are pervasive environmental contaminants throughout Bangladesh with major exposures through drinking water and ambient pollution. Chronic exposures to arsenic, manganese, and lead in sensitive populations such as pregnant women,...
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    Dissertation
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    , Dr. Omar Sharif Ibn Hasan, and Dr. Mahmudur Rahman – Critical in sample collection and organization