Index Catalog // ScholarsArchive@OSU

Cyclic nucleotides, cyclic nucleotide phosphodiesterase, protein kinase, and phosphoprotein phosphatase in the central nervous system of Manduca sexta

Creator:: Albin, Edward Elmo
Abstract:: Adenosine 3', 5' -cyclic monophosphate (cyclic AMP, cAMP) and guanosine 3', 5' -cyclic monophosphate (cyclic GMP, cGMP) were quantitated in the central nervous system (CNS) of the insect Manduca sexta by competitive protein binding techniques. The M. sexta CNS was found to contain a strikingly high level of cGMP, about...
Resource Type:: Dissertation
Full Text:: cyclic nucleotide- stimulable protein kinases (ATP: protein phosphotransferase, EC 2. 7. 1. 37), a

A role for ceramide accumulation in age-related cardiac mitochondrial dysfunction

Creator:: Monette, Jeffrey S.
Abstract:: Ceramides are a group of lipids in the sphingolipid family that are potent cell signaling molecules. Elevations in ceramide levels above the norm generally lead to apoptosis. Evidence from in vitro studies suggests that accumulation of ceramides within mitochondria leads to dysfunction of the mitochondria. This includes inhibition of the...
Resource Type:: Dissertation

Orbiting the Genus of False Units: Dynamics of Phage Genomes and Nematode Microbiomes Associated with Pseudomonas spp.

Creator:: Ha, Anh D.
Abstract:: Pseudomonas is a diverse, ubiquitous, and widely studied genus of bacteria. As Pseudomonas species occupy a wide range of niches in the ecosystem, they have made remarkable biological impacts. Better understanding of Pseudomonas biology, genetic diversity, and functional interactions with other organisms and the environment will provide valuable insights into...
Resource Type:: Dissertation

Addressing wastewater epidemiology limitations with the use of dynamic population surrogates, complementary urinalyses and in-situ experiments

Creator:: Brewer, Alex J.
Abstract:: Wastewater epidemiology is an emerging discipline that requires collaborative research involving analytical chemists, drug epidemiologists, and wastewater engineers. Wastewater epidemiology involves the sampling and quantitative analysis of raw wastewaters from communities for illicit drugs and their metabolites. Mass loads (mass per day) and per capita (mg per day per person)...
Resource Type:: Dissertation

Ethylene biosynthesis : new intermediates in the regeneration of methionine in fruits

Creator:: Kushad, Mosbah Mohamed
Resource Type:: Dissertation

Characteristics of NADPH-cytochrome P-450 reductase in the house fly (Musca domestica, L.) and the blow fly (Phormia regina, Meigen)

Creator:: Vincent, Daniel R.
Abstract:: NADPH-cytochrome P-450 reductase, an important enzyme in the cytochrome P-450-dependent microsomal monooxygenase system, was purified from insecticide-resistant (R) and -susceptible (S) house flies (Musca domestica, L.) and from the black blow fly (Phormia regina, Weigen). Proteolytic degradation to a P-450 - inactive form of the reductase was reduced during the...
Resource Type:: Dissertation
Full Text:: companion enzyme in this system is NADPH- cytochrome P-450(c) reductase(EC.1.6.2.4), whose function, as its

Genetics and gene flow of organophosphate resistance in three predatory mites, Amblyseius andersoni Chant, Typhlodromus pyri Scheuten and Metaseiulus occidentalis Nesbitt (Acarina: Phytoseiidae), in Oregon

Creator:: Dunley, John E.
Abstract:: Genetics, gene flow, and distribution of pesticide resistance traits were examined for organophosphate (OP) resistance in three beneficial phytoseiid mites. Levels and genetics of OP resistance in Amblyseius andersoni were examined first. Laboratory strains from Italy and Oregon, USA, were compared in susceptibility to insecticides used in western Oregon fruit...
Resource Type:: Dissertation
Full Text:: [EC], Lilly Co., Portland, Ore.), diazinon (4 EC, Ciba-Geigy, Greensboro, NC), endosulfan

Studies on the biology of two ambystomid and five plethodontid salamanders of western Oregon

Creator:: Freiburg, Richard Eighme
Resource Type:: Dissertation
Full Text:: the years 1349, lESO and 1952. The tLree adult Dtoarnotodon were collected in or i.'ediately

Alteration in levels and synthesis of proteins in trout hepatocytes due to dietary cyclopropenoid fatty acid[s]

Creator:: Perdew, Gary H.
Abstract:: Cyclopropenoid fatty acids (CPFA) are unique compounds that contain a highly strained and reactive cyclopropene ring structure. These compounds have been shown to cause a number of toxic effects in a variety of animals. Rainbow trout (Salmo gairdneri) have proven to be particularly sensitive to CPFA. Studies have revealed that...
Resource Type:: Dissertation
Full Text:: ). The electrotransfer was performed in a E-C electroblot unit (EC Apparatus Corp., St. Petersburg, FL

An investigation of the utility of Landsat 2 MSS data to the fire-danger rating area, and forest fuel analysis within Crater Lake National Park, Oregon

Creator:: Rabii, Hassan Alizadeh
Resource Type:: Dissertation

Perturbed directional correlation in Ta-181

Creator:: Cannon, Theodore Wiles
Resource Type:: Dissertation
Full Text:: excited nucleus by two-garnma cascade 5 ? Yectors defining the positions of the nuclear charges ec and

New Insights into Mantle Dynamics from Helium Isotopes and Argon Geochronology

Creator:: Konrad, Kevin
Abstract:: Earth’s mantle extends to nearly 3000 km depth, comprises >80 % of Earth’s total volume, and has the largest influence on the primordial and radiogenic heat budget. Despite its importance, the structure and composition of the mantle is still debated. There are three primary models for Earth’s mantle structure that...
Resource Type:: Dissertation

The effect of hexachlorophene and related compounds on torula yeast glucose-6-phosphate dehydrogenase and some other dehydrogenase enzymes

Creator:: Wang, Jun-Lan
Abstract:: Low concentrations of hexachlorophene (HCP) inhibit a number of pyridine nucleotide-linked dehydrogenase enzymes. The I₅₀ HCP concentrations were 105 μM for pig heart isocitrate dehydrogenase (ICD), 65 μM for horse liver alcohol dehydrogenase, 39 μM for torula yeast glucose-6-phosphate dehydrogenase (G6PD), 6.0 μM for beef heart malate dehydrogenase, and 1.6...
Resource Type:: Dissertation
Full Text:: Dehydrogenase Glucose-6-phosphate dehydrogenase (G6PD; D-glucose-6-phosphate: NADP + -oxidoreductase, EC

Chemical cues and the molecular basis of olfactory chemoreception in caudate amphibians

Creator:: Kiemnec, Karen M.
Abstract:: Chemoreception is one of the dominant sensory modalities for many species of salamanders (reviewed in Chapter 2). At least seven of the ten currently recognized salamander families are known to respond to some sort of chemical cue. These responses are as varied as delaying hatching, seeking refuge, or initiating aggressive...
Resource Type:: Dissertation

The physiological effect of posture on cycling

Creator:: al-Haboubi, Muhammad
Abstract:: The objective of this research was to investigate the physiological effects of body posture on cycling. The familiar positions of bicycle riding have been the touring posture (hands stretched on top handlebar) and the racing posture (hands bent at the elbow, with the back horizontal). However, a relatively new stance...
Resource Type:: Dissertation

Classical biological control of the filbert aphid, Myzocallis coryli (Goetze) (Homoptera:Aphididae) in western Oregon

Creator:: Messing, Russell H.
Abstract:: A classical biological control project was undertaken against the filbert aphid, Myzocallis coryli (Goetze), in western Oregon. Hazelnut orchards in Spain, France, and Italy were searched for natural enemies of the aphid, and a parasitic wasp, Trioxys pallidus Haliday, was imported, quarantined, mass-reared, and released in Oregon orchards. The wasp...
Resource Type:: Dissertation
Full Text:: import parasites of M. coryli. The Commission grant of $1349. was supplemented with $600. from sources

Measurement of spin observables for proton-deuteron elastic scattering

Creator:: Zhao, Jie
Resource Type:: Dissertation
Full Text:: 40. Typical Oc distributions: Top ec (THSC) in itc,°; Botton ec cos (4) vs. ec sin (0,) (THCS x

New Graphite Intercalation Chemistry with Alkaline Earth Metals

Creator:: Xu, Wei
Abstract:: Novel graphite intercalation compounds (GICs) and associated chemistry have been explored, specifically: (1) containing alkyl- substituted imidazolium cations; (2) a series containing alkaline earth metal (Mg, Ca, Sr, Ba) cations with ethylenediamine (en) co-intercalates; (3) showing reversible intragallery M-M bonding and (4) via electrochemical intercalation of Mg cations with potential...
Resource Type:: Dissertation

Substitution Effects on the Structure and Electronic Behavior of Ternary Precious Metal Oxides

Creator:: Flynn, Joshua
Abstract:: Due to the high cost of precursor materials, complex oxides of 4d and 5d transition metals are under-studied compared to their 3d counterparts. Recent studies have shown that oxides containing heavier transition metals can exhibit exotic electronic states due to presence of strong spin-orbit coupling. The goal of this dissertation...
Resource Type:: Dissertation

Ascorbylation- the biological relevance of covalently bound ascorbic acid

Creator:: Kesinger, Nicholas G.
Abstract:: Ascorbic acid, or vitamin C, is well known as a co-factor for proline-hydroxylase and as an anti-oxidant. However, it is also capable of forming covalent bonds, particularly in the role of a nucleophile, henceforth termed 'ascorbylation'. The ascorbylation of electrophiles can occur under physiological conditions. Furthermore, there are a number...
Resource Type:: Dissertation

The effect of mixing moisture, oxidative aging and tire pressures on the performance of asphalt mixes

Creator:: Kim, Ok-kee
Abstract:: The research undertaken consisted of the study of three topics affecting the performance of asphalt concrete mixtures, that is, mixing moisture, oxidative aging and higher tire pressures and axle loads. This thesis presents the findings of the research comprising these three topics. In the first study, the effects of mixing...
Resource Type:: Dissertation
Full Text:: - nent strain ec were calculated ficnu the equations suggested by Kennedy (7) using the specimen

Biophysical basis of macromolecular assembly in the dynein cargo attachment complex

Creator:: Hall, Justin Daniel
Abstract:: Cytoplasmic dynein is an ATP-dependent, microtubule-based molecular motor involved in the positioning and trafficking of cellular cargo. The cargo binding sub-domain of dynein contains the natively disordered intermediate chain (IC) and the homodimeric light chains (Tctex1, LC8 and LC7). The structure and stoichiometry of this complex, how the light chains...
Resource Type:: Dissertation

Cryopreservation of in vitro-grown apical meristems

Creator:: Chang, Yongjian
Abstract:: Alternating temperature (22°C / -1°C) pretreatments were effective for increasing cold hardiness and recovery of cryopreserved meristems. Combining low temperature pretreatment with abscisic acid (ABA) or sucrose treatments reduced the time required for optimal cold hardiness of meristems. Desiccation tolerance was directly correlated with increased cold hardiness and recovery of...
Resource Type:: Dissertation

Biologically active cyclic depsipeptides from marine cyanobacteria

Creator:: Medina, Rebecca A.
Abstract:: This thesis describes the chemical investigation of marine cyanobacteria collected in Madagascar and Panama with an emphasis on the isolation and structure elucidation of medicinally relevant secondary metabolites. A collection of the marine cyanobacterium Lyngbya majuscula from the Radames Islands, Madagascar yielded two new cyclic depsipeptides, radamamides A and B,...
Resource Type:: Dissertation
Full Text:: addition, ET-743 was granted orphan drug status from the European Commission (EC) and the U.S. Food and

Behavior of Drosophila suzukii in Relation to Abiotic, Biotic, and Nutrient Factors

Creator:: Park, Kyoo Rok
Abstract:: Drosophila suzukii (Diptera: Drosophilidae), is a serious pest in soft and stone fruit industries worldwide. The unique serrated ovipositor of female Drosophila suzukii allowed the species to reproduce in intact, ripening fruit before the harvest. Current control methods rely heavily on insecticide application, only becoming less profitable due to the...
Resource Type:: Dissertation

Utilization of the Zebrafish Model for Investigating Nitrated Polycyclic Aromatic Hydrocarbon Developmental Toxicity

Creator:: Chlebowski, Anna C.
Abstract:: Polycyclic aromatic hydrocarbons (PAHs) are among the most widely known and studied environmental contaminants, originating from a range of natural and anthropogenic sources. PAHs are known to occur in the environment as complex mixtures, containing both unsubstituted PAHs, as well as a range of PAH derivatives. Among the less-studied of...
Resource Type:: Dissertation

The Evaluation of the Additive Information Contained in New Ecohydrological Measurements

Creator:: Li, Bonan
Abstract:: The development of ecohydrological frameworks and theories under the ongoing global climate crisis depends on the development of new and advanced ecohydrological measurements. Currently, numerous of datasets have been collected at plot and ecosystem levels to understand the complex interactions of along the soil, plant, and atmosphere continuum. The development...
Resource Type:: Dissertation
Full Text:: (Gentine et al., 2019). The advent of the eddy covariance (EC) technique has been providing valuable

Investigating Timescales of Resurgence at Large Calderas: Post-74 ka Activity at Toba Caldera, Sumatra, Indonesia

Creator:: Mucek, Adonara E.
Abstract:: The Toba Caldera Complex is the youngest resurgent caldera in the last 100 kyrs, formed from four overlapping eruptions starting 1.2 Myrs ago. The last caldera-forming eruption, the Youngest Toba Tuff eruption, occurred ~74 kyrs ago, emitting 2800 km3 of ash and pumice into the atmosphere and forming the caldera...
Resource Type:: Dissertation

Chemopreventative and chemotherapeutic properties of whole cruciferous vegetables and phytochemical components in acute T-cell lymphoblastic leukemia/lymphoma

Creator:: Shorey, Lyndsey E.
Abstract:: Acute lymphoblastic leukemia (ALL) encompasses a spectrum of lymphoid progenitors that have undergone malignant transformation and clonal proliferation at various stages of differentiation. Some cases of ALL have been documented to have prenatal origins and in particular neonatal exposure to various environmental pollutants is associated with increased disease risk, including...
Resource Type:: Dissertation

An experimental investigation of radiative and total heat transfer around a horizontal tube immersed in a high temperature gas-solid fluidized bed

Creator:: Alavizadeh, Seyed Nasser
Abstract:: This study is primarily concerned with the measurement of the local radiative component of total heat transfer around a horizontal tube immersed in a large particle fluidized bed at elevated temperatures.Total heat transfer was also measured in order to assess the relative radiation contribution.The radiation measurement probe employs a silicon...
Resource Type:: Dissertation

Spectroscopic studies of matrix isolated molecules : I. The fluorosulfate radical : II. Cis-3, 4-dichlorocyclobutene : III. Cyclobutadiene

Creator:: Suzuki, Edward Masaru
Resource Type:: Dissertation

Analysis of electrophilic compounds using an electron monochromator : mass spectrometer system

Creator:: Mazurkiewicz, Paul H.
Resource Type:: Dissertation

Natural products studies of the marine cyanobacteria Lyngbya semiplena and Lyngbya majuscula

Creator:: Han, Bingnan
Abstract:: This thesis details my investigations of marine cyanobacterial natural products that resulted in the discovery of eighteen new secondary metabolites. Isolation and characterization of these unique molecules were carried out using different chromatographic techniques and by careful analyses of 1D and 2D NMR data, respectively. Preliminary bioassays of the crude...
Resource Type:: Dissertation
Full Text:: is a blocker of voltage-sensitive Na channel in mouse neuro-2a cells (EC = 1 nM). In an inflammatory

Changes in developing strawberry fruit : I. Cell division and enlargement ; and II. Biosynthesis of anthocyanins and other phenolics and activity of associated enzymes

Creator:: Cheng, Guiwen
Abstract:: Size and color are important visual quantity attributes of the fruit of strawberry (Fmgaria x ananassa Duch.). Strawberry cultivars produce fruit of a characteristic size and color, the later being the result of accumulation of particular anthocyanins. This research sought to determine the basis for genotypic differences in fruit size...
Resource Type:: Dissertation

Classifying Chemical Bioactivity by Coupling High-throughput Phenotypic Anchoring and Transcriptome Profiling in Zebrafish

Creator:: Haggard, Derik
Abstract:: There are more than 87,000 chemicals in current use with little to no toxicity information available. Assessing such a large number of chemicals using traditional methods would take an unreasonable amount of time and money, and require the use a large number of animals. The incorporation of high-throughput in vivo...
Resource Type:: Dissertation

Cooperation and conflict in Pseudomonas aeruginosa quorum sensing

Creator:: Wilder, Cara N.
Abstract:: Pseudomonas aeruginosa is an environmental bacterium as well as an opportunistic pathogen that primarily infects immunocompromised individuals, including those suffering from cystic fibrosis. The density-dependent regulation of gene expression via cell-to-cell communication, also termed quorum sensing (QS), is an important virulence determinant in this organism. Generally, P. aeruginosa uses three...
Resource Type:: Dissertation

Age-related decrease in resilience against acute redox cycling agents: Critical role of declining GSH-dependent detoxification capacity

Creator:: Thomas, Nicholas O.
Abstract:: Over the past century, life expectancy in the United States has dramatically increased leading to an increasingly aging population with people reaching, and spending more years in ‘old age’. While this unprecedented shift in population demographics represents great strides for humanity, it is not without cost. One consequence of longer...
Resource Type:: Dissertation

Recombination and generation lifetime characterization of p/p⁺ epitaxial silicon wafers

Creator:: Aminzadeh, Mehran G.
Abstract:: The refresh times of all dynamic charge storage devices, best characterized by the generation lifetime at roan temperature and the recombination lifetime at higher device operating temperatures (T>70°C), strongly influence the efficient and successful operation of dynamic charge storage devices such as DRAM's and CCD's. Both recombination and generation lifetime...
Resource Type:: Dissertation

Chlordecone pretreatment promoted subcellular distribution of scavenger receptor class B type II to murine hepatic microsomes ; mass spectrometry detected hepatic soluble cholesterol binding proteins and comparison of protein iTRAQ ratios using ESI QTOF and MALDI TOF/TOF

Creator:: Scheri, Richard C.
Abstract:: Chlordecone belongs to the class of persistent organochlorine pesticides that are remarkably resistant to environmental degradation. Even though their use was banned in the United States in 1978, these compounds can still be detected in both humans and wildlife throughout the world. Previous work has shown that the pretreatment of...
Resource Type:: Dissertation

Price elasticities in commodity trade models and external trade statistics

Creator:: Emami, Ali
Abstract:: The purpose of this study is to investigate the role of the source of the external trade statistics in measuring the price responsiveness of foreign demands and relative price competitiveness of the major exporting countries in trade of agricultural commodities in international markets. In particular, the papers included in this...
Resource Type:: Dissertation

An Experimental and Numerical Investigation of Tall Mechanically Stabilized Earth Walls

Creator:: Strahler, Andrew W.
Abstract:: The implementation and construction of Mechanically Stabilized Earth (MSE) walls has undergone substantial expansions in recent years, owing to its relatively low cost, ease of construction, and high efficiency compared to conventional retaining methods. As a result, MSE walls are being constructed to greater heights with complex features (e.g. multiple...
Resource Type:: Dissertation
Full Text:: during shear for (a) AICD and (b) PSK0CD tests on Kanaskat gravel; ec, ef,. and ecs correspond to the

Studies of the crinkle disease of strawberry with special reference to the inheritance of resistance

Creator:: Weaver, LeRoy Eugene
Resource Type:: Dissertation

Ecotypic adaptation of Setaria lutescens (Weigel) F. T. Hubbard to alfalfa culture in California

Creator:: Schoner, Carl Arnold
Abstract:: Setaria lutescens (yellow foxtail) plants, grown from five seed sources were compared in California. Seed sources were: Connecticut, Iowa, Massachusetts, Pennsylvania and California. Morphological and physiological differences between biotypes include: plant size, growth habit, time required to mature and reproductive capa city. Most significant is the prostrate habit of the...
Resource Type:: Dissertation

Neurotransmitters, cyclic nucleotides, and adenyl cyclase in the central nervous system of Manduca sexta

Creator:: Taylor, Duncan Paul
Resource Type:: Dissertation

Properties of the oceans reflected in the sea-bed distribution of Quaternary planktonic Foraminifera : including a study of the limits of empirical paleo-oceanographic models and the recognition and interpretation of faunal assemblages lacking modern counterparts

Creator:: Loubere, Paul
Resource Type:: Dissertation
Full Text:: 2O (c) 35 38 ec A B 20 1(b) tO UI I'.) 7p .. (d) 35 38 j_j- () C1Ututs f 0. eeca1tfr (rtn

Microcomputer controlled chemical and radiochemical separations and analysis

Creator:: Bennett, Casey Wayne
Abstract:: An automated radiochemical flow analysis (ARFA) system was developed which integrates chemical and radiochemical techniques into one system through the use of a microcomputer. The operator, through the microcomputer, controls valves and pumps to transfer sample and reagent solutions to counting loops, ion exchange columns and holdup reservoirs. A Ge(Li)...
Resource Type:: Dissertation

The Effects of the Flow Regime on Stream Channel Form and Processes

Creator:: Hempel, Laura A.
Abstract:: Numerous studies have explored how alluvial channel size and morphology are adjusted to different sediment and flow conditions, yet we still know very little about how and to what degree the flow regime controls channel form and processes. We use the term ‘channel form’ to refer to the size and...
Resource Type:: Dissertation

Coulomb Explosion in Moderately Intense Nanosecond Laser Fields

Creator:: Yao, Yuzhong
Abstract:: In this dissertation, I present experimental observations of multiply charged atomic ions (MCAI) generated from interactions of atomic/molecular clusters with moderately intense nanosecond laser pulses. This process is also known as Coulomb explosion (CE) and it has been extensively studied in intense laser fields using ultrashort pulses. Several prevailing theories...
Resource Type:: Dissertation

Perceived Discrimination and Hypertension: Contextual and Mediating Factors

Creator:: Sims, Kendra D.
Abstract:: Marginalized groups in the United States are often diagnosed with hypertension at younger ages, contributing to their excess burden of cardiovascular disease. These disparities in blood pressure control do not appear to be fully accounted for by individual risk factors, such as health behaviors or genetic differences. Experiences of discrimination...
Resource Type:: Dissertation

Certain biotic factors influencing the invasion and survival of the Douglas-fir beetle Dendroctonus pseudotsugae Hopkins (Coleoptera : scolytidae) in fallen trees

Creator:: Hendrickson, William Henry
Abstract:: Factors considered were phloem moisture, sour-phloem (which may be furthered by the presence of ample phloem moisture), oleoresin of the host, and the presence of unmated female beetles in suitable host material. Levels of phloem moisture present in variously prepared logs in the field ranged from about 100 to upwards...
Resource Type:: Dissertation

Guide groups : an evaluation of educational innovation in a secondary school

Creator:: Erickson, John William
Abstract:: Purpose of the Study: This study was undertaken as a result of interest in the introduction of guide groups into the operation of secondary schools. Particularly when viewed from the historical perspective of the times in which it was initiated, the guide group concept offers an opportunity to examine the...
Resource Type:: Dissertation

The role of the plasminogen activator system in the etiology of ovarian follicular cysts in dairy cattle

Creator:: McNeel, Anthony Kent
Abstract:: Cystic ovarian disease (COD) is an anovulatory condition in cattle that afflicts between 6-18% of all dairy cows in the US. Ovulation is dependent on the plasminogen activator (PA) family of proteases and protease inhibitor for proteolysis, culminating in follicular rupture. Failure of the follicle to ovulate suggests an aberration...
Resource Type:: Dissertation

Architectures and algorithms for dynamic overlay networks

Creator:: Abdelwahab, Sherif
Abstract:: Most of today’s Internet of Things (IoT) applications assume that data will be moved offdevices into centralized cloud platforms. While existing IoT systems leverage cloud-based analytics for meaningful data reasoning, the assumption that data should always be moved off the devices is problematic. The amount of data to be moved...
Resource Type:: Dissertation

Regulation of Redox Homeostasis in Skin Cells for the Prevention of UV-Induced Stress and Treatment of Melanoma

Creator:: Carpenter, Evan L.
Abstract:: Melanocytes are dendritic, pigment-producing cells located in the skin and are responsible for its protection against the deleterious effects of solar ultraviolet radiation (UVR), which include DNA damage and elevated reactive oxygen species (ROS). They do so by synthesizing photoprotective melanin pigments and distributing them to adjacent skin cells (e.g.,...
Resource Type:: Dissertation

Investigating Multimodal Therapies with Nanotechnology to Engineer Advanced Chemoradiation Platforms

Creator:: DuRoss, Allison N.
Abstract:: The potential for nanomedicine to reduce toxicity and improve therapeutic response to radiation is vast. Clinically, this potential has thus far only begun to be realized with the recent success of the radioenhancing nanoparticle, NBTXR3 by Nanobiotix. Radioenhancing nanoparticles, however, represent only a small class of nanomaterials that may be...
Resource Type:: Dissertation

Plasma membrane composition and luteinizing hormone receptors of ovine corpora lutea during early pregnancy

Creator:: Zelinski, Mary Beth
Abstract:: The lipid composition of plasma membranes of corpora lutea was examined to determine whether changes in this organelle occur during regression and early pregnancy in the ewe. Forty ewes were assigned to be necropsied on days 13 or 15 of the estrous cycle (D13-NP and D15-NP) or pregnancy (D13-P and...
Resource Type:: Dissertation

Identification of Cervical Cancer Key Regulators using Network Biology Approach

Creator:: Vyshenska, Dariia
Abstract:: Cervical cancer is the fourth most common cancer in women worldwide with human papillomavirus (HPV) being the main cause of the disease. Currently available treatment methods are limited and emphasize the need for discovery of new therapies that improve patient outcome. Chromosomal amplifications have been identified as a source of...
Resource Type:: Dissertation

Marking, movement, and management of Drosophila suzukii in Oregon berry crops

Creator:: Klick, Jimmy
Abstract:: Drosophila suzukii Matsumura (Diptera: Drosophilidae) are small invasive flies that in the past five years (2009-2014) invaded berry and stone fruit production regions in Europe and the Americas. Evolutionary adaptations, biological traits, and anthropogenic factors have contributed to its current status as a global pest. Females oviposit eggs into ripe...
Resource Type:: Dissertation

A chemical and petrological study of igneous lithic clasts from the kapoeta howardite

Creator:: Smith, Monty Ray
Abstract:: Instrumental and radiochemical neutron activation analyses supported by electron microprobe mineral analyses (Paul Warren, University of New Mexico) and petrographic observations are presented for approximately forty individual clasts separated from the Kapoeta howardite. These clasts are classified into eucritic, cumulate-like, mafic (plagioclase ± olivine-bearing pyroxenites), pyroxenite, polymict and/or metal-rich and...
Resource Type:: Dissertation
Full Text:: (n ,y)TmEu(EC) 152sm(n ,y)153Sm and 151Eu(n,y)152mEu(C)152Gd(no) 153Gd yiel ed specific activities

Mechanisms of estradiol-17β-induced down-regulation of ovine uterine oxytocin receptors during the estrous cycle

Creator:: Hazzard, Timothy McLagan
Resource Type:: Dissertation

Species identification of Klamath Basin suckers (Pisces : Catostomidae) and an assessment of hybridization using anonymous nuclear loci

Creator:: Wagman, David Wolfe
Abstract:: Low copy number anonymous nuclear loci were used to search for species markers in four species of Klamath Basin suckers. We sequenced 28 randomly chosen loci representing 10,421 bp; 21 loci were similar to sequences in GenBank. Eight fixed sequence differences were found among Klamath species. Locus 120 contained rare...
Resource Type:: Dissertation

Effects of flooding on peach, apple, quince and several pear species

Creator:: Andersen, Peter C.
Abstract:: A series of experiments was designed to investigate differential flood-tolerance and the phenomenon of flood-induced stomatal closure of several fruit tree species. The first two experiments were conducted with potted plants submerged outdoors 5-10 cm above the soil line. Plant morphology, growth, leaf conductance (cL), and soil oxygen diffusion rate...
Resource Type:: Dissertation

The aging endoplasmic reticulum

Creator:: Dixon, Brian M.
Abstract:: Hallmarks of aging include the accumulation of aberrant proteins and a lower resistance to stresses. Because the endoplasmic reticulum (ER) functions to fold proteins and possesses unique stress sensing pathways, the central hypothesis of this dissertation is that the ER is a target of cellular aging and significantly underlies these...
Resource Type:: Dissertation

Effects of environmental stress on intertidal mussel reproduction

Creator:: Petes, Laura E.
Abstract:: Environmental stress can negatively affect the ability of organisms to reproduce. Energetic trade-offs exist in all organisms, and under stress, energy may be allocated away from reproduction and towards physiological defense and repair mechanisms. The rocky intertidal environment is ideal for investigating the influence of environmental stress, as organisms are...
Resource Type:: Dissertation

Development of the simplified method to evaluate dynamic mechanical analysis data on asphalt-aggregate mixtures

Creator:: Ab-Wahab, Yunus Bin
Abstract:: Testing of asphalt binders and asphalt-aggregate mixtures using dynamic mechanical analysis is becoming popular with improvements in high-speed computers, precision equipment, and computer software. Researchers are trying to describe the behavior of asphalt binders and asphalt-aggregate mixtures in terms of their time- and temperature-dependent linear viscoelastic behavior. The objectives of...
Resource Type:: Dissertation

Prediction of meat quality characteristics using a two-factor quadratic central composite rotatable design with response surface analysis

Creator:: Zondagh, Irene Beryl
Abstract:: The objectives were to investigate the ability of a two-factor central composite rotatable design (CCRD), using cooking temperature (CT) and endpoint temperature (ET) as independent variables, to predict selected chemical, physical and sensory meat quality characteristics considered important by the industry, researcher and consumer alike. Response surface analysis (RSA) was...
Resource Type:: Dissertation

The atmospheric chemistry of particulate-bound polycyclic aromatic hydrocarbons : concentration, prediction, laboratory studies, and mutagenicity

Creator:: Jariyasopit, Narumol
Abstract:: The trans-Pacific atmospheric transport of particulate matter (PM)-bound polycyclic aromatic hydrocarbons (PAHs) to remote sites in western North America has been well documented and has triggered research questions regarding to atmospheric transformation of PM-bound PAHs and the potential impacts on human health from their inhalation exposure. In this dissertation, field...
Resource Type:: Dissertation
Full Text:: . J. Environ. Qual. 2010, 39 (4), 1349-1358. 24. Atkinson, R.; Arey, J., Mechanisms of the gas-phase

Thermal Processing of Injection-Molded Silicon Carbide

Creator:: Chinn, Richard E.
Abstract:: Silicon carbide is an important and versatile nonoxide ceramic. Powder injection molding (PIM) is a method of high-speed fabrication of complex near-net shapes of SiC and other powders. Green micro-machining (GMM) is used to extend the shaping capability of green ceramics and powder metallurgy to smaller feature sizes. Debinding--removal of...
Resource Type:: Dissertation

Ripening pear flavor volatiles : identification, biosynthesis and sensory perception

Creator:: Suwanagul, Anawat
Abstract:: Volatile compounds of eight pear varieties were isolated and identified by GC/MS. A total of 112 components were identified from headspace of intact fruits, including 47 compounds reported for the first time in pear. The volatile profiles of these pear varieties were characterized by esters, alcohols, hydrocarbons, aldehydes and ketones....
Resource Type:: Dissertation

Vertical Structure of the Lower Troposphere in a Changing Arctic

Creator:: Watkins, Daniel M.
Abstract:: The Arctic climate system is changing dramatically as a response to rising atmospheric greenhouse gas concentrations. Key indicators of Arctic change include thinning and retreating of Arctic pack ice, thawing permafrost, greening tundra, and rising surface temperatures. The structure of the atmospheric boundary layer influences and is influenced by processes...
Resource Type:: Dissertation

Development of Amorphous Metal Thin Films for Thermal Inkjet Printing and Microelectronics

Creator:: McGlone, John M.
Abstract:: Due to a lack of grain boundaries, an amorphous metal thin film (AMTF) possesses advantageous mechanical properties and enhanced chemical stability that is potentially useful for thermal inkjet (TIJ) printing applications. The use of an AMTF as a TIJ resistor or cavitation plate could lead to a thinner TIJ cavitation...
Resource Type:: Dissertation

Magmatism and mineralization of the Ash Peak area, Arizona : petrochemical interpretations

Creator:: Walker, Robert J.
Abstract:: Andesitic and rhyolitic magmatism was active during the mid- Tertiary (Early Miocene) of the Ash Peak area, southeastern Arizona. Andesitic magmas of similar composition both preceded and followed the low- and high-silica rhyolitic magmas. The changes from andesitic to rhyolitic and back to andesitic volcanism is postulated to be the...
Resource Type:: Dissertation

Developmental neurobehavioral toxicity of bisphenol A in zebrafish (Danio rerio)

Creator:: Saili, Katerine Schletz
Abstract:: Billions of pounds of bisphenol A (BPA) are produced annually around the globe for the manufacture of numerous consumer products, including polycarbonate food and water containers, the protective resin linings of food cans, thermal printing paper, and dental fillings. BPA exposure during nervous system development has been associated with learning...
Resource Type:: Dissertation
Full Text:: migration limit of 0.6 mg/kg food (Commission Directive 2002/72/EC dated 6 August 2002). Although the

Investigation of Drilled Shafts under Axial, Lateral, and Torsional Loading

Creator:: Li, Qiang
Abstract:: Drilled shaft foundations provide significant geotechnical resistance for support of structures, such as highway bridges, traffic sign, and signal pole structures, and are used widely to meet their structural foundation requirements. The amount of steel reinforcement in drilled shaft foundations has increased over the past several decades to account for...
Resource Type:: Dissertation
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Influence of Regional Oceanography on the Distributions, Trophic Interactions, Growth, and Survival of the Early Life History Stages of Fishes

Creator:: Swieca, Kelsey
Abstract:: Most marine fishes experience high rates of mortality during their early life history stages with far reaching consequences for adult population dynamics. Within a few weeks of hatching, relatively small changes in larval growth and mortality rates can lead to orders of magnitude variability in year-class strength. Growth and survival...
Resource Type:: Dissertation

From ALS to Antibodies: New Techniques in Mass Spectrometry-Based Proteoform Characterization

Creator:: Meeuwsen, Joseph C.
Abstract:: Altogether, this dissertation highlights the value of mass spectrometry-based analysis of intact proteins for solving problems related to understanding disease mechanisms and developing new therapeutics. Mutations to the antioxidant enzyme Cu, Zn Superoxide Dismutase (SOD1) perturb protein structure in vivo to cause 2-5% of amyotrophic lateral sclerosis (ALS) cases. Metal-deficient...
Resource Type:: Dissertation

Modeling Task Prioritization Behaviors in a Time-Pressured Multitasking Environment

Creator:: Toma, Takeaki
Abstract:: Funk’s (1991) cockpit task management (CTM) theory is structurally consistent with cognitive multitasking models: it addresses managing multiple and concurrent tasks in three stages: situation awareness, response selection, and response execution. Based on CTM theory, Colvin, Funk and Braune (2005) hypothesized that the following six factors may affect task prioritization:...
Resource Type:: Dissertation

Excited state molecular structural evolution and chemical reactivity studied by femtosecond stimulated Raman spectroscopy

Creator:: Han, Fangyuan
Abstract:: In this dissertation, my research work on excited state dynamics of small organic molecules in solutions is presented. Using femtosecond stimulated Raman spectroscopy (FSRS) as the main experimental tool, the excited state hydrogen-bonding dynamics (ESHBD) of Coumarin 102, a common laser dye molecule, in ethanol solution is examined with <150...
Resource Type:: Dissertation

Interrelations of magnesium, lime, and potassium in broccoli grown on two western Oregon soils

Creator:: Yahner, Joseph Edward
Resource Type:: Dissertation
Full Text:: effect. Carolus (12) and Hester, et al. (25, p. 1349) working with Virginia coastal plain soils

Radical anions, radicals and anions : the formation and stereochemistry of alkyl lithium reagents from lithium 4, 4'-Di-tert-butylbiphenyl and alkyl halides

Creator:: Hutchinson, Larry Lee
Resource Type:: Dissertation

An economic analysis of some factors associated with the international trade flows of frozen groundfish blocks

Creator:: Paez, Maria Lucia D'Apice
Resource Type:: Dissertation

Livelihoods and land use change in highland Ethiopia

Creator:: Guillozet, Kathleen
Abstract:: This dissertation investigates livelihood and land use change dynamics in a community at the farm-forest periphery in highland Ethiopia. I use interviews and livelihood assessment data to compare the strategies used by members of different wealth groups to negotiate and maintain access to forest resources, and integrate socioeconomic, bio-physical and...
Resource Type:: Dissertation

Late Pleistocene and Holocene glacier and climate change

Creator:: Marcott, Shaun Andrew
Abstract:: This dissertation presents results from three studies that address major scientific questions in glacial geology and paleoclimatology for the late Pleistocene and Holocene using relatively new geochemical and statistical techniques. Each of the studies attempts to answer a longstanding question in the respective field using geochemical or statistical methods that...
Resource Type:: Dissertation

Modeling Forest Response to Changing Climate Conditions in Western North America

Creator:: Hawkins, Linnia R.
Abstract:: Forests play an integral role in the global carbon cycle, regulating the atmospheric CO₂ concentration by sequestering nearly one third of anthropogenic carbon emissions and storing carbon for centuries. Forest ecosystems are integrated into the culture, ecology, and economy of western North America, supporting wildlife habitat, local economies, recreation, and...
Resource Type:: Dissertation

Systematic, genomic, and transcriptomic analysis of mycoparasitic Tolypocladium species and their Elaphomyces hosts

Creator:: Quandt, C. Alisha
Abstract:: Fungi in the genus Tolypocladium are diverse in their host associations, but the predominant ecologies include parasites of the ectomycorrhizal genus Elaphomyces and pathogens of insects. The aim of this dissertation research is to examine the evolution of these fungi and their host associations. To accomplish this several lines of...
Resource Type:: Dissertation

The role of selected population and site characteristics in the demand for forest recreation

Creator:: Guedry, Leo Joseph
Resource Type:: Dissertation

Secretion of luteinizing hormone in response to exogenous melatonin in postpartum beef cows and ovariectomized beef heifers

Creator:: Sucheta, Susan Leers
Resource Type:: Dissertation

Petrologic Investigations into the Magmatic Processes That lead to Au, Ag, and Base Metal Fertility: Insights from Pebble, Alaska and the Emigrant Pass Volcanic Field, Nevada

Creator:: Olson, Nansen H.
Abstract:: Magmatic-hydrothermal ore deposits are giant geochemical anomalies in the earth’s crust most often generated by normal magmatic terrestrial processes. They are often associated with oxidized and hydrous intermediate to highly evolved magmas that have concentrated metals and have the necessary components to efficiently extract and transport them as ascending magmatic-hydrothermal...
Resource Type:: Dissertation

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