Index Catalog // ScholarsArchive@OSU

Effects of the insecticide dieldrin on benthic algae in laboratory streams

Creator:: Rose, Frederick Louis
Abstract:: The accumulation of dieldrin and its effects on species composition of benthic algal communities were studied in laboratory streams. Effects of dieldrin on photosynthetic and respiratory rates of the blue-green alga Phormidium retzii were determined using a Gilson Differential Respirometer. Dieldrin concentrations ranging from 0.05 to 7.0 ppb were maintained...
Resource Type:: Dissertation
Full Text:: ON BENTHIC ALGAE IN LABORATORY STREAMS Abstract approved: C. David McIntire The accumulation

Structure and productivity of marine benthic diatom communities in a laboratory model ecosystem

Creator:: Wulff, Barry Lee
Abstract:: Effects of light intensity, exposure to desiccation, reduced salinity, and thermal elevation on the functional and structural characteristics of marine benthic diatom communities were investigated in a laboratory model ecosystem and a respirometer chamber. Measurements of biomass (dry weight and ash-free dry weight) and chlorophyll a were made for each...
Resource Type:: Dissertation
Full Text:: for privacy Abstract approved: Dr. C. David McIntire Effects of light intensity, exposure to

The distribution of epiphytic diatoms in Yaquina Estuary, Oregon

Creator:: Main, Stephen Paul
Abstract:: Epiphytic diatom assemblages in the intertidal zone of Yaquina Bay and estuary were obtained from the following host macrophytes: Zostera marina, Fucus evanescens, and species of Enteromorpha, Polysiphonia, and Ulva. Samples were collected in September 1970 and in January and May 1971 from seven stations approximately evenly spaced between the...
Resource Type:: Dissertation
Full Text:: sincere appreciation to Dr. C. David McIntire, my major professor, for the opportunity to make this study

Successional changes associated with benthic assemblages in experimental streams

Creator:: Busch, David E.
Abstract:: Experimental streams constructed by the Weyerhaeuser Company, Tacoma, Washington, at Kalama Springs, Washington, were used to observe successional changes in the benthos. Community changes were observed relative to experimental manipulations of light intensity and nitrate concentration in two experiments. The development of benthic assemblages was followed for 150 days after...
Resource Type:: Masters Thesis
Full Text:: . David McIntire Experimental streams constructed by the Weyerhaeuser Company, Tacoma, Washington, at

Grazer-periphyton interactions in laboratory streams

Creator:: Sumner, William T.
Resource Type:: Masters Thesis
Full Text:: Abstract approved: Redacted for Privacy C. David McIntire The effects of grazing, light intensity, and

Effects of current velocity, irradiance, and herbivory on algal assemblages in laboratory streams

Creator:: Steinman, Alan D.
Abstract:: Effects of current velocity, irradiance, and grazing on the biomass, taxonomic structure, physiognomy, and chemical composition of lotic algal assemblages were investigated. Four experiments, lasting 32 to 75 days, were conducted in laboratory streams to determine how these factors affect algal assemblages singly, and in concert with each other. Regardless...
Resource Type:: Dissertation
Full Text:: consciousness. CONTRIBUTION OF AUTHORS C. David McIntire, R. R. Lowry, Stan Gregory, Gary Lamberti, and

Effects of substrate relief, light intensity and herbivory on the distribution and abundance of periphyton in laboratory streams

Creator:: DeNicola, Dean M.
Resource Type:: Dissertation
Full Text:: succession in this study. 154 CONTRIBUTION OF AUTHORS C. David McIntire assisted with the experimental

Effects of grazing and nitrogen enrichment on the taxonomic structure of periphyton assemblages in lotic ecosystems

Creator:: Lundberg, Chris H.
Resource Type:: Masters Thesis
Full Text:: in Lotic Ecosystems. Abstract approved: C. David McIntire The taxonomic composition of benthic

The distribution of planktonic diatoms in Yaquina Estuary, Oregon

Creator:: Karentz, Deneb
Resource Type:: Masters Thesis
Full Text:: IN YAQUINA ESTUARY, OREGON Abstract approved: C. David McIntire Plankton samples were obtained

The distribution of intertidal diatoms associated with the sediments of Yaquina Estuary, Oregon

Creator:: Amspoker, Michael C.
Abstract:: Sediment samples were collected from eight sampling sites along the Yaquina Estuary, Oregon from Yaquina Bay to Elk City near the head of the estuary. Samples were collected in November 1973, February 1974, May 1974 and August 1974 from two or three intertidal levels depending on the magnitude of the...
Resource Type:: Dissertation
Full Text:: : C. David Mclntire Sediment samples were collected from eight sampling sites along the Yaquina

Laboratory studies of successional patterns in assemblages of attached estuarine diatoms

Creator:: Berglund, Lisette Aline
Abstract:: Successional patterns of attached estuarine diatoms were investigated using laboratory model ecosystems. Artificial substrates of acrylic plastic were exposed to 0, 4, and 10 hours of desiccation per day. Diatom assemblages that developed under temperatures normal for Yaquina Bay, Oregon (control ecosystem) were compared to assemblages that developed at temperatures...
Resource Type:: Masters Thesis
Full Text:: STUDIES OF SUCCESSIONAL PATTERNS IN Abstract approved: OF ATTACHED ESTUARINE DIATOMS Dr. C. David

Production dynamics of a Zostera marina L. bed in Netarts Bay, Oregon

Creator:: Kentula, Mary E.
Resource Type:: Dissertation
Full Text:: Dynamics of a Zostera marina L. Bed in Netarts Bay, Oregon Abstract Approved: C. David Mclntire This

Production dynamics of sediment-associated algae in two Oregon estuaries

Creator:: Davis, Michael W.
Abstract:: Sediment-associated gross primary production, oxygen uptake, microalgal biomass expressed as chlorophyll a concentration, macroalgal biomass and total organic matter concentration expressed as ash-free dry weight were measured monthly at medium sand, fine sand and coarse silt sites between 0.5 m and 2.0 m above MLLW during an entire year at...
Resource Type:: Dissertation

Distributional patterns and taxonomic structure of diatom assemblages in Netarts Bay, Oregon

Creator:: Whiting, Mark Carlos
Abstract:: Epiphytic, planktonic and benthic diatom assemblages were investigated in Netarts Bay, Oregon. Samples were collected for a one-year period from February 1980 to March 1981. A planktonic flora was observed only during periods of offshore enrichment when marine neritic species were abundant and were transported into the bay by tidal...
Resource Type:: Dissertation
Full Text:: : LC , z r-L? C. David McIntire Epiphytic, planktonic and benthic diatom assemblages were

Understanding invasive conifer seed structure and viability to inform treatment efforts

Creator:: Vautrin, Andy
Abstract:: This paper examines the invasion of exotic wilding conifers on the native tussock grasslands of Aotearoa New Zealand. The investigation includes two studies and aims to better understand the structure of Pinus contorta seeds across tree crown positions and the viability rates of P. contorta seeds produced during a trees...
Resource Type:: Capstone Project
Full Text:: gratitude to my advisor, Dr. David Shaw, for his willingness to take on a graduate student despite

A Case Study of the Elk Creek Landscape Restoration Project

Creator:: Negherbon, Lindsey B.
Abstract:: Land management agencies are faced with decreasing budgets and staff, even as acres in need of restoration treatment are increasing. Rural communities in the West are still suffering from sharp declines in timber harvests since the 1990s and are now contending with wildfires that are increasing in size and severity....
Resource Type:: Capstone Project
Full Text:: Study of The Elk Creek Landscape Restoration Project. Abstract approved: _____David C

Immunomodulatory Actions of Bovine Whey Protein Isolates, Glycomacropeptide, and Their Digests: Insights from Macrophage and Human Studies

Creator:: Olsen, Wyatt
Abstract:: Whey protein isolate (WPI) and glycomacropeptide (GMP) have shown potential immunomodulatory properties. In this study, we investigated their effects on pro-inflammatory cytokine secretion using both in vitro and in vivo models. In LPS-stimulated THP-1-derived macrophages, digested WPI and GMP reduced cytokine expression, while whole GMP increased secretion. The in human...
Resource Type:: Masters Thesis
Full Text:: and in vivo digests Wyatt Olsen1, Ningjian Liang2, David C. Dallas* 1,2 1Department of Food

Associations between state alcohol tax policies and college sexual assault offenses

Creator:: Killion, Rebecca
Abstract:: Previous literature consistently demonstrates a link between binge drinking and sexual assault among college students. State alcohol control policies, particularly tax policies, are established as important predictors of college binge drinking but have not been examined in relation to sexual assault. This study used merged data on student demographics and...
Resource Type:: Honors College Thesis
Full Text:: approved:_____________________________________________________ David Kerr Previous literature

Distinguishing Risk and Protective Factors for Suicidal Ideation and Attempt Among Gender Diverse and Cisgender Youth: Findings from a State Survey

Creator:: Zell, Holly
Abstract:: Suicide is a leading cause of death amongst adolescents, and transgender and gender diverse youth are at especially high risk for suicidal ideation and attempt compared with cisgender peers. Using established ideation-to-action models of suicide and the Minority Stress Model, this project used the 2019 results of the Oregon Healthy...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ David C. R. Kerr Suicide is a leading cause of death amongst adolescents, and

Examining the relationship between cannabis legalization, substance use, and consequences : a latent class analysis of alcohol and cannabis co-use in college students

Creator:: Reed, Samantha
Abstract:: Introduction: Potential public health impacts of recreational cannabis legalization (RCL) are a growing concern, particularly for young adults. Some evidence suggests that following RCL, cannabis use increased, whereas alcohol use decreased among young adults. Co-use patterns have not been found to change following RCL in this age group. However, RCLs...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ David C.R. Kerr Introduction: Potential public health impacts of recreational cannabis

Distinguishing risk and protective factors for suicidal ideation and attempt among gender diverse and cisgender youth : findings from a state survey

Creator:: Zell, Holly
Resource Type:: Poster
Full Text:: , MA, LPC & David C. R. Kerr, PhD School of Psychological Science BACKGROUND • As of 2018, suicide

Genetic Characterization and Bioclimatic Modeling of the Three Varieties of Leptographium wageneri (Cause of Black Stain Root Disease) in the Western USA

Creator:: Choi, Daram
Abstract:: Black stain root disease (BSRD) is a vascular wilt disease of conifers caused by three varieties of the native, insect-vectored fungal pathogen, Leptographium wageneri (L. wageneri var. wageneri, L. wageneri var. ponderosum, and L. wageneri var. pseudotsugae). Although morphological, physiological, and ecological characteristics differ among the three varieties of L....
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ David C. Shaw Black stain root disease (BSRD) is a vascular wilt disease of conifers

Parasitoid wasps of Douglas-fir Needle Midge (Contarinia pseudotsugae Condrashoff,1961) larvae in two Christmas tree farms, Willamette Valley, Oregon

Creator:: Voyvot, Saliha
Abstract:: Douglas-fir needle midge (Contarinia pseudotsugae, Diptera: Cecidomyiidae) is a native invasive species in Pacific Northwest Christmas tree farms, seed orchards, and nurseries where Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco) is present. Douglas-fir needle midge (DFNM) causes discoloration and galls on the needles, thereby it affects the market value of the Christmas...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ David C. Shaw Douglas-fir needle midge (Contarinia pseudotsugae, Diptera

Identifying Differences in the Release of Bioactive Milk Peptides Across the Intestinal Tract Between Term and Preterm Infants

Creator:: Beverly, Robert L.
Abstract:: Premature birth interrupts the typical development of the human fetus, leaving the infant born with underdeveloped gastrointestinal and immune systems. Preterm infants have reduced stomach acidity, reduced digestive protease activity, more permeable intestinal membranes, impaired innate and adaptive immune response, and poor microbiome development. Due to these factors, preterm infants...
Resource Type:: Dissertation
Full Text:: : ________________________________________________________________________ David C. Dallas Premature birth interrupts the typical

Implications of Person Perception Across Development: The Reciprocal Influences of Problem Behavior and Facial Trustworthiness

Creator:: Alley, Zoe M.
Abstract:: People of all ages and ethnicities implicitly use others’ facial characteristics to evaluate their personalities. The field of person perception has identified several mechanisms through which one’s facial appearance may be associated with one’s behavior. For example, a person with an untrustworthy-looking face may elicit negative reactions from social partners,...
Resource Type:: Dissertation
Full Text:: Trustworthiness. Abstract approved: ______________________________________________________ David C. R

Transformation of Western Hemlock Tree Crowns by Dwarf Mistletoe

Creator:: Calkins, Stephen J.
Abstract:: Hemlock dwarf mistletoe (Arceuthobium tsugense subsp. tsugense) is an arboreal, hemiparasitic plant that principally parasitizes western hemlock (Tsuga heterophylla). Hemlock dwarf mistletoe exerts a profound influence on infected trees that can drastically change the structure of the tree crown due to reduced growth, top dieback, branch deformation and death, resulting...
Resource Type:: Masters Thesis
Full Text:: : _____________________________________________________________________ David C. Shaw Hemlock dwarf mistletoe (Arceuthobium tsugense subsp. tsugense) is an

Analysis of Alternative Donor Breast Milk Pasteurization Techniques and Their Impact on Bile Salt-Stimulated Lipase Activity

Creator:: Victor, Ashley F.
Abstract:: While breast milk is considered the best nourishment for newborns, they have a lowered ability to digest the fat rich liquid due to decreased lipase secretion for the first few months after birth. To offset this, breast milk itself contains Bile Salt-Stimulated Lipase (BSSL) which significantly heightens fat digestion ability....
Resource Type:: Honors College Thesis
Full Text:: . APPROVED: _____________________________________________________________________ David C Dallas

Evidence for Strengthening Hadley Cells and a Westward Expansion of the Walker Circulation from Assimilation of Paleoclimate Proxy Data

Creator:: Horlick, Kaleb A.
Abstract:: A synthesis of over 2000 paleoclimate proxy records is performed via a data assimilation framework that expands upon previous efforts by implementing a suite of physically-based proxy system models, and which provides the first example of an observationally independent, multi-seasonal (DJFM, JJAS) paleoclimate reanalysis. This methodology is contrasted against previous...
Resource Type:: Masters Thesis
Full Text:: David C. Noone A synthesis of over 2000 paleoclimate proxy records is performed via a data

Canopy Ecology of Swiss Needle Cast in Young and Mature/Old-growth Douglas-fir (Pseudotsuga menziesii)

Creator:: Lan, Yung-Hsiang
Abstract:: Swiss needle cast (SNC) is a foliage disease of Douglas-fir caused by Nothophaeocryptopus gaeumannii, an Ascomycete fungus (Mycosphaerellaceae) that causes growth reductions in Douglas-fir plantations across the Pacific Northwest. Epidemiology of the fungus is generally well known in plantation trees, but the relationship between disease expression and foliage nutrition and...
Resource Type:: Dissertation
Full Text:: menziesii) Abstract approved: ______________________________________________________ David C

Sustainable energy for Galena, Alaska: Timber Harvest Management Plan

Creator:: Kalke, Timothy R.
Abstract:: Increased energy costs have prompted the rural village of Galena, Alaska to explore viable alternatives for heat and power generation. Continued dependency on petroleum products will cause the community’s economic driving force, the Galena Interior Learning Academy (GILA), to face uncertain operability. A wood-fired boiler is scheduled to be installed,...
Resource Type:: Capstone Project
Full Text:: gratitude to David Smith, my academic advisor. His guidance, knowledge and motivation helped me immensely

The Effects of Seed Source and Planting Environment on Douglas-fir (Pseudotsuga menziesii) Foliage Diseases

Creator:: Wilhelmi, Nicholas
Abstract:: Douglas-fir (Pseudotsuga menziesii) is a commercially and ecologically important tree species native to western North America. The foliar pathogens Phaeocryptopus gaeumannii, the causal agent of Swiss Needle Cast, and Rhabdocline species, the causal agents of Rhabdocline needle cast, are two important pathogens specific to Douglas-fir. These pathogens are highly influenced...
Resource Type:: Masters Thesis
Full Text:: . Abstract approved: ______________________________________________________ David C. Shaw

Overstory Structure and Community Characteristics of Oregon Ash (Fraxinus latifolia) Forests of the Willamette Valley, Oregon

Creator:: Prive, Sean
Abstract:: As species of ash trees become increasingly threatened worldwide by exotic pests and pathogens, it is important to develop descriptions of their ecologies that help guide the conservation and restoration of forests in which they are a major component. Oregon ash (Fraxinus latifolia) is a dominant tree species in wetland...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ David C. Shaw As species of ash trees become increasingly threatened worldwide by

Associations Between Relocation and Seasonal Depression

Creator:: Morozov, Andrey A. and Kerr, David C. R.
Abstract:: Seasonal Affective Disorder (SAD) is a mood disorder that is characterized by depressive symptoms that onset and remit at the same times each year. Whereas few people (about 1%) experience problems severe enough to be labeled SAD, many people (estimates range from 30%-90%) may experience mild to moderate changes in...
Resource Type:: Poster
Full Text:: Andrey A. Morozov; David C. R. Kerr, Ph.D. Introduction Seasonal Affective Disorder (SAD) is a

Estimation of the percentage of fat and lean in the edible portion of steer carcasses

Creator:: Kennick, Walter Herbert
Resource Type:: Dissertation
Full Text:: thanks to Dr. David c. Englmd for con t1nuous assistance and guidance through out the course of this

Effect of rations of various energy to body weight ratios on growth rate and feed efficiency of weaner steers fed to slaughter

Creator:: Schlender, John Ralph
Resource Type:: Masters Thesis
Full Text:: author wishes to extend his most sincere apprecia- tion to Dr. David C. England, Associate Frofessor of

Weights and nursing positions of pigs and milk production of individual under sections of sows

Creator:: Rose, Harvey Frederic
Resource Type:: Masters Thesis
Full Text:: Redacted for Privacy Redacted for Privacy ACKNOWLEDGMENTS The author wishes to thank Dr. David England

Genetic and environmental influences upon litter size and variation of birth weights in Berkshire swine

Creator:: Chapman, Verne Merrill
Abstract:: Litter site and birth weight data compiled from the farrowing records of 275 litters out of 109 purebred Berkshire sows of the Oregon State University swine herd during the years 1953 to 1960 inclusive were used in this study. Genetic and environmental factors influencing four components of reproductive performance, namely,...
Resource Type:: Masters Thesis
Full Text:: ACKNOWLEDGEMENTS The writer wishes to express his sincere thanks and gratitude to Dr. David C. England

Changing with the seasons : does vitamin D affect mood?

Creator:: Downing, Dave G. and Kerr, David C. R.
Abstract:: Seasonality is defined as a change in mood and behavior with the seasons. Research shows there is a possible connection between vitamin D levels and mood (Murphy & Wagner, 2008; Lansdowne & Provost, 1998). Given that vitamin D is produced when skin is exposed to sunlight and varies with sun...
Resource Type:: Poster

The relationship of initial weight to growth rate in preweaning pigs

Creator:: Keeler, Joseph Lambert
Abstract:: Growth data compiled in this study were collected by using pigs farrowed during the fall, 1963 and spring, 1964 farrowing seasons of the Oregon State University swine herd. Thirty-seven trios of light-, medium- and heavy-birth-weight suckling pigs were used to determine the effect of birth weight on subsequent rate of...
Resource Type:: Masters Thesis
Full Text:: wishes to express his sincere thanks to Dr. David C, England, associate professor of Animal Science, for

Exploring the lived experiences of rural college student transitions

Creator:: Ast, Karen M.
Abstract:: This study explores the lived experiences of first-year, rural, Oregon students in their initial entry to college. Through qualitative research involving one-on-one interviews with 10 participants, the author examines the transition of rural students into higher education, common experiences of rural students in their first term of college, and perceived...
Resource Type:: Masters Thesis
Full Text:: : _____________________________________________________________________________ David C. Kovac This study explores the lived experiences of first-year, rural, Oregon

Selection for hybrid female reproductive performance in the mouse

Creator:: Chapman, Verne Merrill
Abstract:: The design of this study was suggested by the following observations: (1) the successful application of recurrent selection techniques in obtaining improvement of hybrid performance in corn and Drosophila, (2) the increased production realized by rotational crossbreeding, and (3) the expression of a relatively large degree of hybrid vigor in...
Resource Type:: Dissertation
Full Text:: and significant learning experiences and I would like to thank Dr. David C. England for the

The fatty acid composition of certain bovine tissues

Creator:: Thompson, Robert Charles, 1927-
Abstract:: In this study subcutaneous, inter- and intramuscular fats from 42 Hereford steers were analyzed for their fatty acid composition using gas-liquid chromatography. The same tissues were analyzed from one pair each of identical twins of Angus and Shorthorn breeding. Muscle and liver lipids from these latter four animals were fractionated...
Resource Type:: Dissertation
Full Text:: appreciation to Dr. David C. Church, Associate Professor of Animal Science, for his encouragement and

Pine butterfly (Neophasia menapia) outbreak in the Malheur National Forest, Blue Mountains, Oregon : examining patterns of defoliation

Creator:: DeMarco, Ariadne T.
Abstract:: The pine butterfly (Neophasia menapia C. Felder & R. Felder) (Lepidoptera: Pieridae) is a relatively host-specific defoliator of ponderosa pine (Pinus ponderosa Dougl. ex Laws). From 2008 to 2012, the Malheur National Forest was subject to an outbreak of pine butterfly in ponderosa pine, peaking at ~100,000 ha of forest...
Resource Type:: Masters Thesis
Full Text:: Forest, Blue Mountains, Oregon: Examining Patterns of Defoliation Abstract approved: David C

Response of market hogs to periodic changes among nutritionally similar rations

Creator:: Hamstreet, John Leslie, 1940-
Abstract:: An experiment was conducted during the period November 1967 to November 1968 at Oregon State University (OSU) and the Umatilla Branch Experiment Station (BES) at Hermiston, two trials at each location, to answer several questions: (1) could comparable rations for swine be formulated by a computer on a least-cost basis;...
Resource Type:: Masters Thesis
Full Text:: MARKET HOGS TO PERIODIC CHANGES AMONG NUTRITIONALLY SIMILAR RATIONS Abstract approved: David C

An investigation of the effects of immersed heat exchanger tube spacing and arrangement on the quality of fluidization in a cold phase two-dimensional fluidized bed

Creator:: Lockwood, Dwight Norris
Abstract:: The feasibility of fluidized bed combustion of coal for commercial and industrial steam power generation has been established and reported in the literature. Satisfactory removal of sulfur oxides from the combustion product gases has also been reported. In this experiment various heat exchanger tube patterns, of commercial size tubes, were...
Resource Type:: Masters Thesis
Full Text:: committee: Dr. David C. Junge for his guidance as my major professor, to Professor Octave Levenspiel for

Reproductive characteristics of two breeds of swine fed dichlorvos

Creator:: Trindade, Roger James
Abstract:: Thirty-six gilts were used in an experiment of 2³ factorial design. The experiment consisted of two breeds (Yorkshire- Berkshire and Yorkshire), two feeding regimens (pre-breeding and post-breeding) and two levels of dichlorvos (2, 2-dichlorovinyl dimethyl phosphate, 0 and 800 mg. per gilt per day). Pre-breeding treatment consisted of feeding dichlorvos...
Resource Type:: Masters Thesis
Full Text:: SWINE FED DICHLORVOS Abstract approved: Redacted for Privacy David C. EnglOd Thirty-six gilts were

Genetic-protein level interaction in growth and carcass traits of market hogs

Creator:: Boyd, Steven Michael
Abstract:: Progeny from three sires of differing genetic background were divided within litters by sex and placed on either a 15 or 19% protein ration. The test period began when the experimental animals weighed 60 pounds and continued until they were slaughtered at 225 pounds. This test period was divided into...
Resource Type:: Masters Thesis
Full Text:: INTERACTION IN GROWTH AND CARCASS TRAITS ()F MARKET HOGS Redacted for PrivacyAbstract approve David C ngland

The relationship of blood glucose levels to ovulation rate and early embryonic mortality in gilts

Creator:: Day, Paul E.
Abstract:: A study was made of blood glucose levels and their relationship to reproduction in gilts. Twelve blood samples, two in each of three successive weeks, before and after breeding were taken. Half of the samples were obtained from gilts in a fasting state and half after feeding. All samples were...
Resource Type:: Masters Thesis
Full Text:: MORTALITY IN GILTS c:-Redacted for Privacy Abstract approved: David C. E land A study was made of blood

Combustion mechanisms in wood fired boilers

Creator:: Tuttle, Kenneth Lewis
Abstract:: A program of research has been established at Oregon State University to study wood residue combustion using an experimental spreader-stoker combustor. This research was conducted to increase the understanding of combustion occurring in wood fired boilers. Using Douglas Fir screened to 3/8-3/4 inches, two 4x4 factorial experiments were conducted varying...
Resource Type:: Dissertation
Full Text:: . David C. Junge, Final Ph.D. Dissertation Major Professor, John G. Mingle, Initial Ph.D. Program Major

Criteria for selection and management in the swine breeding herd

Creator:: Page, Edward Bryce
Abstract:: Oregon State University swine herd records of four genetic groups were analyzed to determine: (1) the association of occurrence of a small litter (≤ 7) at birth with size of subsequent litters for gilts and sows, separately; (2) the effect of parity, genetic background and litter size on mean birth...
Resource Type:: Masters Thesis
Full Text:: ma j or professor, Dr. David C. England for his assistance and interest throughout the development

Management techniques for induction and synchronization of estrus in prepuberal gilts in confinement

Creator:: Schiemann, Calvin Aloysius
Abstract:: At weights of 81.5-90.5 kg, 187 prepuberal crossbred gilts were subjected to specific environmental stimuli, for up to 17 days, to determine which stimuli or combinations of various ones would initiate onset of estrus in prepuberal gilts. The stimuli used were: movement to new building, mixing or non-mixing of gilts,...
Resource Type:: Masters Thesis
Full Text:: ;Redacted for Privacy David C. England, Professor of Animal Science At weights of 81.5-90.5 kg, 187

Digestibility of by-product feeds by sheep

Creator:: Champe, Karla Ann
Abstract:: Two digestibility trials using sheep were conducted to determine the digestibility coefficients of a commercially processed NaOH treated annual ryegrass straw cube. Comparisons were made with loose, chopped ryegrass straw and a ryegrass straw cube processed with molasses as a binder. The NaOH cubed straw was produced by spraying a...
Resource Type:: Masters Thesis
Full Text:: Champe ACKNOWLEDGEMENTS Many thanks are due to my major professor, Dr. David C. Church, without

Biorhythms' relation to industrial accidents

Creator:: Zimmerman, Richard Orin
Abstract:: The theory of Biorhythms is an up and coming topic. Its founding fathers: Dr, Fliess, Dr. Swoboda, and Dr. Teltsher discovered the 23 day physical 28 day sensitivity, and 33 day Intellectual cycles around the turn of the century. Today, biorhythms are being looked at and studied from many different...
Resource Type:: Masters Thesis
Full Text:: . David C. Lawson, my major professor, who gave me the assistance I needed when I needed it. And also to

Influence of dwarf mistletoe (Arceuthobium americanum) on stand structure, canopy fuels, and fire behavior in lodgepole pine (Pinus contorta) forests 21-28 years post-mountain pine beetle (Dendroctonus ponderosae) epidemic in central Oregon

Creator:: Agne, Michelle C.
Abstract:: Lodgepole pine (Pinus contorta) forests are widely distributed throughout western North America. However, the lodgepole pine forests of central Oregon are ecologically unique to the region, with a mixed severity fire regime, low cone serotiny, and their occasional presence as a climax species. Most of the research conducted regarding the...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: David C. Shaw Lodgepole pine (Pinus contorta) forests are widely distributed

A study of the interaction between learner characteristics, two methods of CPR instruction, and affects on retention of CPR competencies

Creator:: Carl, Frank (Frank Charles)
Abstract:: Problem: The primary purpose of this study was to investigate interactions between learner characteristics and instructional settings and their affect on retention of cardiopulmonary resuscitation (CPR.) competency.. An effort was made to determine if college students identified as Independent or Dependent-Conforming learners interacted with traditional or self-instructional CPR educational modes....
Resource Type:: Dissertation
Full Text:: . Lj6NDACTS ON RST=9N OF CPR COMPETENCIES Redacted for Privacy Abstract approved: Davia C. Jawson >ow

Cycling and reproductive phenomena in gilts

Creator:: Knott, Robert Edward
Abstract:: Purebred Yorkshire gilts from a confinement managed herd were reared to test weights away from the sow and boar herd. Thirty-eight gilts weighing between 73 and 80 kilograms constituted group A gilts; 38 gilts weighing between 91 and 100 kilograms constituted group B gilts; and 47 gilts weighing 114 kilograms...
Resource Type:: Masters Thesis
Full Text:: : Redacted for privacy David C. England, Profa or of Animal Science Purebred Yorkshire gilts from a

A comparison of noise environments between offices of Langton Hall and other offices on the Oregon State University campus

Creator:: Healey, John Patrick
Resource Type:: Masters Thesis
Full Text:: UNIVERSITY CAMPUS AO, Abstract approved: _Redacted for Privacy David Cr. Lawson Purpose The purpose of

Reproductive and litter performance of sows mated during lactation

Creator:: Walker, Calvin
Abstract:: An experiment was conducted with 51 control and 51 experimental confinement- managed purebred Yorkshire sows of various parities to (1) determine whether confinement-managed sows during lactation would exhibit estrus, mate, and conceive as a consequence of a daily regimen of a short period of separation from their litters, mixing sows...
Resource Type:: Masters Thesis
Full Text:: . To my major professor, Dr. David C. England, for his counseling and guidance throughout my Master of

Production responses of barrows fed finisher rations with 11 vs 14 percent protein

Creator:: Bellatty, Paul T.
Abstract:: Tests using paired pens of barrows were conducted during a 13 month period to determine the influence of protein level of the ration on production traits of market barrows. One member of each pair of six to ten full- and half-sib pairs was randomly allotted to each pen group; thus,...
Resource Type:: Masters Thesis
Full Text:: author is sincerely grateful to Drs. David C. England and William D. Hohenboken for their generous

Development of an attitude scale for personal health

Creator:: Nichols, Stephen P.
Abstract:: The purposes of this study were to construct a Likert scale to measure the attitudes of individuals toward their personal health, then to establish the reliability and validity of the scale. A 22 item scale was developed from computer part whole analysis of 100 random items written and edited by...
Resource Type:: Dissertation
Full Text:: to express his sincere appreciation to Dr. Robert Houston and William Anderman and David Lawson for

Litter productivity at first and second parity by gilts mated at different weights at first or second estrus

Creator:: Tachasirinugune, Sommai
Abstract:: Purebred Yorkshire gilts with weights ranging from 70 to 105 kilograms were moved from a total-confinement rearing unit to a total-confinement brood stock unit where approximately ten gilts per pen were mixed to provide new penmates. Each gilt was thus exposed to an unfamiliar environment and to foreign penmates along...
Resource Type:: Masters Thesis
Full Text:: appccRed acted for Privacy David C. Englan, Purebred Yorkshire gilts with weights ranging from 70 to 105

The influence of heredity and some environmental components on occurrence of puberty in gilts in confinement

Creator:: Walker, Calvin
Abstract:: In a swine production and breeding experiment, Yorkshire gilts were evaluated for the influences of heredity-and some environmental components on occurrence of puberty in gilts in confinement. In the first experiment, 186 Yorkshire gilts reared and maintained in total confinement were used in a study to assess effects of several...
Resource Type:: Dissertation
Full Text:: Influences of Heredity and Some Environmental Components on Occurrence of Puberty in Gilts in Confinement c

An evaluation of airborne bacteria concentrations and ventilation rates in an industrial office environment

Creator:: Lashbrook, Wesley S.
Abstract:: This study investigated the relationship between airborne bacteria densities and varying ventilation rates in industrial office areas. The two objectives of this study were as follows: to determine the correlation of bacteria density and ventilation rates in each sample area. to measure the reported incidence of respiratory illness in each...
Resource Type:: Masters Thesis
Full Text:: ENVIRONMENT Redacted for privacy Abstract approved: C. Lawson This study investigated the relationship

Sources of influence on passive and active immunoglobulin G responses in swine

Creator:: Chitko, Carol G.
Abstract:: Thirty-seven Yorkshire sows were bred to one of six boars; 34 of the sows were verified pregnant at 42 d of gestation. These sows were innoculated with ovine serum albumin (OSA) in Freunds' complete adjuvant at 65 d and later given a second injection in Freunds.' incomplete adjuvant 93 d....
Resource Type:: Masters Thesis
Full Text:: RESPONSES IN SWINE C__I=ledacted for privacy Abstract approvea: David C. Eng d Thirty-seven Yorkshire

The development and application of an evaluation questionnaire used to compare opinions towards an audiovisual foodservice training program

Creator:: Cochran, M. Teresa
Abstract:: The primary purpose of this study was for three select groups to critically appraise the Personal Hygiene for Foodservice Workers sound/slide system. These three groups (Media Specialists, Content Experts and the Learners) were identified in a literature search as being those individuals most directly responsible for evaluating the worth of...
Resource Type:: Masters Thesis
Full Text:: Opinions Towards An Audiovisual Foodservice Training Program Abstract approved: Dr. David C. Lawson The

Impact of voluntary compliance and compliance inspection programs on experience rates among small employers in California

Creator:: Nave, Michael E.
Abstract:: This study was conducted to evaluate government intervention as an effective strategy for implementing accident prevention programs and reducing occupational injuries in the workplace. The central issue was to determine if participation in the California Occupational Safety and Health (Cal/OSHA) Small Employer Voluntary Compliance Program (SEVCP) or compliance inspections conducted...
Resource Type:: Dissertation
Full Text:: Employers in California (Redacted for privacy Abstract Approved (--"tavAd C. Lawson This study was

Genetic components of genetic influence on traits of purebred and crossbred populations of swine of Berkshire and Yorkshire origin

Creator:: Bellatty, Paul T.
Abstract:: Purebred and crossbred litters of Yorkshire and Berkshire breeds of swine were evaluated for number of piglets born alive per litter, number of piglets weaned per litter, mean piglet birth weight, mean piglet birth weight adjusted for number of piglets born alive per litter and mean piglet weaning weight. The...
Resource Type:: Dissertation
Full Text:: of Swine of Berkshire and Yorkshire Origin / Abstract appro-V-ed _Redacted for Privacy David C

A descriptive study of hospital utilization in four Oregon rural counties

Creator:: LeRoy, Charles H.
Resource Type:: Dissertation
Full Text:: in Four Oregon Rural Counties Abstract approved Redacted for privacy David C. Lawson A random

Descriptive study of current practices of hazardous waste management among identified small quantity generators in Benton County

Creator:: Gebrewold, Fetene
Abstract:: Current evidence suggests that development and industrialization has engendered the manufacture and use of chemical products which may harm human health and degrade the environment. One of the most pressing environmental needs since World War II is perhaps the issue of how society either manages or mismanages hazardous wastes. The...
Resource Type:: Dissertation
Full Text:: my studies at Oregon State University: Dr. David Lawson, major advisor, for his willingness

Identification of opinions that university bicyclists and pedestrians possess regarding their safety from a bicycle traffic-related injury on campus

Creator:: Tuyls, Gary W.
Abstract:: This study investigated the opinions of bicyclists/pedestrians regarding how safe from a bicycle traffic injury they felt while on campus. Most earlier studies had been concerned with the taxonomy of bicycle/pedestrian accidents. Because of the paucity of research on attitudes of bicyclists and pedestrians, this research was undertaken. The survey...
Resource Type:: Masters Thesis
Full Text:: : Redacted for Privacy - David C. Lawson This study investigated the opinions of bicyclists/pedestrians

Relative palatabilities of Great Basin forages and mechanisms elicting selective grazing by cattle

Creator:: Cruz-Guerra, Ruben
Resource Type:: Masters Thesis
Full Text:: approved: Dr. David C. G. opp Selective grazing by cattle can be used as a tool to impact or favor

Congruence between student and adviser perceptions of academic advising

Creator:: Bingham, Lisa M.
Abstract:: The purpose of this study was to assess the congruence of perceptions of academic advising between students and advisers. Seventeen tasks involved in developmental academic advising were identified from a review of current academic advising literature. These criteria became the basis of a questionnaire that asked students whether their adviser...
Resource Type:: Masters Thesis
Full Text:: -----,-------------- (_.David C. Kjvac The purpose of this study was to assess the congruence of perceptions of academic

Increasing the digital divide : the online college application process

Creator:: Werth, Loredana L.
Abstract:: The major objectives of this study were to ascertain if certain ethnic and racial groups of first-year Oregon State University students are without access to online admission materials, and to determine what students' point of view are about computer access or applying to Oregon State University online. In addition, the...
Resource Type:: Masters Thesis
Full Text:: ............... 70 B. Percent of U.S. Persons using the Internet by Location ...................... 72 C. Percent

Spatial and ecological analysis of red fir decline in California using FIA data

Creator:: Mortenson, Leif A.
Abstract:: Red fir (Abies magnifica) is a high elevation conifer generally growing between an altitude of 1,400 and 2,700 meters. In California, red fir grows in the Sierra Nevada, the Klamath Mountains, the eastern edges of the northern Californian Coast Ranges, and in the southern Cascades. Red fir commonly grows in...
Resource Type:: Masters Thesis
Full Text:: FIA Data Abstract approved: David C. Shaw Red fir (Abies magnifica) is a high elevation

Middle Eastern student perceptions of mattering and marginality at a large American university

Creator:: Norris, Kent
Abstract:: This study aimed to explore the relatively undocumented experiences and perceptions of mattering and marginality among Middle Eastern students attending a large American university, it also sought to inform higher education administration about the unique characteristics of this rapidly noticeable student population and it attempted to narrow the knowledge gap...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: David C. Kovac This study aimed to explore the relatively

The status of hazardous materials management technology skills standard competencies in partnership for environmental technology education at community colleges

Creator:: Drevdahl-Orchard, Jean M.
Abstract:: The management of hazardous materials is a rapidly expanding global concern and the need for Hazardous Materials Management Technicians is increasing to keep up with this demand. During the late 1980's, community and technical colleges began responding to the needs of industry and started developing curriculum for a Hazardous Materials...
Resource Type:: Dissertation

The relationship between student involvement and self-esteem among college sophomore women

Creator:: Bridges, Laurie M.
Abstract:: This study examined the relationship between self-esteem and student involvement among American college sophomore women. Self-esteem is defined as "a positive or negative attitude toward the self" (Rosenberg, 1989, xxviii). Student involvement is defined as the amount of time a student spends actively involved in various activities in college (Astin,...
Resource Type:: Masters Thesis

Challenges of creating and maintaining international alumni relations programs

Creator:: Read, Lillian S.
Abstract:: During the 2006/07 academic year, 582,984 international students studied in the United States (Open Doors Study, 2007). Roughly 430,000 of these international students were pursuing Bachelors or Graduate level degrees. Of the international students that complete degrees, most will return to their home country and will be unable to attend...
Resource Type:: Masters Thesis
Full Text:: Relations Programs. Abstract approved: Dave C. Kovac During the 2006/07 academic year, 582,984

Effect of site and silvicultural treatment on insect pests and diseases of young ponderosa pine

Creator:: Norlander, Daniel W. D.
Abstract:: Ponderosa pine is an important species both commercially and ecologically in western North America. This study considers the incidence of insect and disease pests on a series of replicated ponderosa pine research plantations in northern California. The studies, on an environmental gradient, contain a series of silvicultural treatments including vegetation...
Resource Type:: Masters Thesis
Full Text:: approved: David C. Shaw Ponderosa pine is an important species both commercially and ecologically in

Staphylococci as microbiological indicators to estimate the quality of swimming pool waters

Creator:: Rivera, Joseph Bechaida T.
Abstract:: Previous studies have indicated that staphylococci have potential for use as indicators of water quality in swimming pool and other recreational waters. However, these organisms are not yet included in the official guidelines for recreational water quality promulgated by health authorities. The purpose of this study is to determine water...
Resource Type:: Masters Thesis
Full Text:: Privacy Abstract approved: David C. Lawson kedacted for Privacy Tilahun Adera Previous studies have

Embryonic mortality in pubertal gilts

Creator:: Archibong, Anthony Effanga
Abstract:: An experiment was conducted to compare the reproductive performance and serum concentrations of progesterone and estrogen of mated first (n=18) and third (n=18) estrous gilts slaughtered in equal numbers on days 3, 15 and 30 postmating. Fertilization rate did not differ between mated first and third estrous gilts. Embryonic survival...
Resource Type:: Dissertation
Full Text:: Fredrick Stormshak Abstract approv4iRedacted for Privacy David C.44gland An experiment was conducted to

Drying wood and bark fuels with boiler exhaust gases

Creator:: Oswald, Kurt Daniel
Resource Type:: Masters Thesis

High Temperature Electrical Properties of Ceria-Based Ceramics for Use as Electrodes in Magnetohydrodynamic Power Generators

Creator:: Bowen, Michael S.
Abstract:: Determining the electrical properties of ceria-based materials is important for their use as electrodes in hot-wall magnetohydrodynamic (MHD) power generators with wall temperatures greater than 1500 ̊C. The electrical conductivity of a material can be used in models for predicting the performance of generator designs. More specifically, the temperature dependent...
Resource Type:: Dissertation
Full Text:: David P. Cann ______________________________________________________ C. Rigel Woodside Determining

Bovine Kappa-Casein Glycomacropeptide: Its Effects on the Microbiome, Inflammation and the Potential in Irritable Bowel Syndrome Management

Creator:: Qu, Yunyao
Abstract:: Irritable bowel syndrome (IBS) is a prevalent gastrointestinal disorder experienced by 10–15% of the global population, manifesting as chronic abdominal pain, bloating and inconsistent bowel habits. The search for effective treatments remains ongoing. One promising contender in this realm is kappa-casein glycomacropeptide (GMP), a milk-derived peptide. Its potential benefits stem...
Resource Type:: Dissertation
Full Text:: : ______________________________________________________ David C. Dallas

Examining Suicide Risk Factors for Youth: A Focus on Black Student Needs

Creator:: Chupp, Colson D.
Abstract:: Objective: In 2018, suicide was the leading cause of death for individuals between the ages of 10-24 in Oregon (OHA, 2019) and was the second leading cause of death for this age range in 2020 (OHA, 2021). In 2019, 12% of Black high school students reported a suicide attempt in...
Resource Type:: Poster
Full Text:: FOR YOUTH: A FOCUS ON BLACK STUDENT NEEDS Colson D. Chupp, Holly N. Zell, M.A., & David C. R. Kerr

College students' alcohol and cannabis use, co-use, academic problems, and gender

Creator:: Chupp, Colson D.
Abstract:: Objective: Alcohol and cannabis use and co-use among college students is prevalent in the United States (Bravo et al., 2021). These substances have been linked to poor collegiate academic performance in past research. The present study examines varying levels of single-substance alcohol use and alcohol and cannabis co-use in their...
Resource Type:: Poster
Full Text:: ., & David C.R. Kerr, PhD School of Psychological Science RESULTS • 104,839 participants were categorized

Coupling of Boundary Layer Dynamics, Turbulence, and Moisture Transport to Cloud Characteristics and Aerosol Concentrations

Creator:: Henze, Dean C.
Abstract:: Uncertainties in general circulation model (GCM) representations of marine boundary layer (MBL) shallow cloud cover contribute substantially to the spread in model predictions of future climate. Further uncertainties in GCM output arise from an incomplete understanding of cloud-aerosol interactions. For example, the Fifth Assessment Report from the Intergovernmental Panel on...
Resource Type:: Dissertation
Full Text:: : _____________________________________________________________________ David C. Noone, Simon P. de Szoeke Uncertainties in general circulation model (GCM

Evaluation of Materials for Use in Open-Cycle Magnetohydrodynamic Power Generation

Creator:: Bowen, Michael S.
Abstract:: Recent interest in oxy-fuel combustion for carbon capture, as well as advancements in technologies such as magnetics, materials, and computational modeling has sparked renewed interest in magnetohydrodynamic (MHD) power generation. The increased temperatures of oxy-fuel combustion versus air-fuel combustion poses a challenge in the selection of materials for plasma exposed...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________________________________ David P. Cann C. Rigel Woodside Abstract: Recent interest in oxy-fuel combustion for carbon

Effects of Whey Protein Isolate on the Human Gut Microbiota and Intestinal Function in Older Adults

Creator:: Rackerby, Bryna
Abstract:: Whey protein is a functional food comprised of numerous bioactive peptides and proteins, including glycomacropeptide (GMP), a hydrophilic casein peptide that separates with the whey fraction during cheesemaking. GMP has a unique amino acid composition, making it a viable nutritional therapy in disorders where certain amino acids are implicated, while...
Resource Type:: Masters Thesis
Full Text:: prebiotic properties of whey protein and glycomacropeptide Bryna Rackerby1, Si Hong Park1, *David C

A 90.5dB DR 1MHz BW Hybrid Two Step ADC with CT Incremental and SAR ADCs

Creator:: Wang, Yanchao
Abstract:: The sensors in real time data processing IoT devices require high resolution and sub-MHz data converters, usually implemented as Incremental ADCs due to the advantages of oversampling technique and low latency. In discrete time incremental (IDT) ADCs, the sampling switch non-linearity, charge injection degrade the resolution, and power hungry OPAMPs...
Resource Type:: Dissertation

Scaling the Issue of Changing Disturbance Regimes: Implications of Novel Landscape Conditions for Black Stain Root Disease

Creator:: Bouché, Adam J.
Abstract:: Changes to disturbance regimes resulting from shifts in forest management practices have created novel landscape conditions in the Pacific Northwest (PNW). I analyzed the implications of changes to landscape conditions caused by forest management for the spread of a native root disease: black stain root disease (BSRD) of Douglas-fir. BSRD...
Resource Type:: Masters Thesis
Full Text:: : ________________________________________________________________ Klaus J. Puettmann David C. Shaw Changes to disturbance regimes

Functional consequences of microRNA regulation by polycyclic aromatic hydrocarbons in 3D human bronchial epithelial cells

Creator:: Mans, Michael-Andres D.
Abstract:: Polycyclic aromatic hydrocarbons (PAHs) are a class of contaminants ubiquitous in the environment and result from the incomplete combustion of fossil fuels. Many PAHs have been identified as procarcinogenic, and are metabolized to form DNA adducts; however, other mechanisms also may contribute to toxicity and help explain differences in toxicity...
Resource Type:: Undergraduate Thesis
Full Text:: APPROVED: _____________________________________________________ _______________ Susan C

Water and Soil Management Practices to Enhance Plant Growth, Berry Development, and Fruit Quality of Northern Highbush Blueberry (Vaccinium corymbosum L.)

Creator:: Almutairi, Khalid F.
Abstract:: Drought and mandatory water restrictions are limiting the availability of irrigation water in many important blueberry growing regions and new strategies are needed to maintain yield and fruit quality with less water. Three potential options for reducing water use, including deficit irrigation, irrigation cut-offs, and crop thinning, were evaluated for...
Resource Type:: Dissertation
Full Text:: : ______________________________________________________ Bernadine C. Strik David R. Bryla Drought and mandatory

The relationship of maternal and infant variables to maternal sensitivity and responsiveness during feedings of the hospitilized neonate

Creator:: McSkimming, Sylvia
Abstract:: Attachment, as described by Bowlby (1969), is an emotional bond between two people. It is an invisible internal characteristic which is assumed to exist because of behaviors exhibited by the attached individual. These proximity seeking behaviors are critical for survival of the infant. Sensitivity of the mother to the infant's...
Resource Type:: Dissertation
Full Text:: Privacy David W. Andrews, PhD. and Clara C. Pratt, PhD. Attachment, as described by Bowlby (1969), is an

Evaluation of responses of sows and their litters to feeding patterns

Creator:: Kwansa, Wilhelmina
Resource Type:: Dissertation
Full Text:: Litters to Feeding Patterns Redacted for Privacy Abstract approved:' Dr. David C. England Preweaning

A linear programming and sampling approach to the cutting-order problem

Creator:: Hamilton, Evan D.
Abstract:: In the context of forest products, a cutting order is a list of dimension parts along with demanded quantities. The cutting-order problem is to minimize the total cost of filling the cutting order from a given lumber grade (or grades). Lumber of a given grade is supplied to the production...
Resource Type:: Dissertation
Full Text:: Abstract approved: Cutting-Order Problem. David A. Butler Charles C. Brunner In the context of forest

Interspace/under-canopy foraging patterns of beef cattle in sagebrush communities : implications to sage-grouse nesting habitat

Creator:: France, Kevin A.
Abstract:: Livestock grazing has been indirectly related to sage-grouse (centrocercus urophasianus) declines in the western United States and southern Canada; however, there is a lack of scientific research that directly relates the two. Our objective was to investigate the influence of livestock herbivory on sage-grouse nesting habitat by determining the spatial...
Resource Type:: Masters Thesis
Full Text:: . Chad S. Boyd David C. Ganskopp Livestock grazing has been indirectly related to sage-grouse

The ecology of Devil's club (Oplopanax horridum (J.E. Smith) Miq.) in western Oregon

Creator:: Roorbach, Ashley H.
Abstract:: Devil's club (Oplopanax horridum (J. E. Smith) Miq.) is an indigenous shrub of the Pacific Northwest, often found in the Tsuga heterophylla (western hemlock)/Devil' s club association in western Oregon. In the same family as ginseng, Devil's club is gaining attention for its medicinal properties. While traditional uses of Devil's...
Resource Type:: Masters Thesis

Nitrogen fixation by scotch broom (Cytisus scoparius L.) and red alder (Alnus rubra Bong.) planted under precommercially thinned Douglas fir (Pseudotsuga menziesii (Mirb.) Franco)

Creator:: Helgerson, O. T.
Abstract:: Red alder (Alnus rubra Bong.), scotch broom (Cytisus scoparius L.) and snowbrush (Ceanothus velutinus Dougi ) were planted under precommercially thinned Douglas-fir (Pseudotsuga iuenziesil Mirb Franco) in the central Oregon Cascades. Plug grown red alder had significantly greater survival than all wildling propagules except for the second broom planting Browsing...
Resource Type:: Dissertation

Substrate production of blueberry : evaluation of soilless media and potassium, nitrogen fertility on growth and nutrition

Creator:: Kingston, Patrick H.
Abstract:: As blueberry (Vaccinium sp.) production has increased in recent decades, a new interest has developed in the cultivation of blueberry in soilless substrate containers. Historically, blueberry has been propagated and grown in soilless substrate at nurseries, but nursery production is short in duration and plants are small relative to a...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ Bernadine C. Strik, Carolyn F. Scagel, David R. Bryla As blueberry (Vaccinium sp

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