Surrogate motherhood is a very complex issue with
many groups having vested interests. In order to measure
attitudes specific to surrogacy a 20-item Likert Scale
with high reliability was developed through item analysis
(N=131, Part-whole correlation range 0.749-0.478).
Correlation of surrogacy attitudes was subsequently
related to six other instruments: AIDS,...
Author Nella Larsen and photographer James VanDerZee are two of the most canonical figures of Harlem Renaissance studies, whose respective novels and portraits have been explored extensively, if separately, by scholars. Both Larsen's 1929 novel Passing and VanDerZee's studio portraiture of the 1920s and 1930s have been read in terms...
This investigation was designed to assess the effects of a victim's
race and stereotypical characteristics on another subject's willingness
to administer punishment within the context of a teacher-learner paradigm.
In addition, this study sought to empirically test the validity of the
social-psychological theory that states that theories of social behavior...
This study was designed to assess the effects of political
participation upon hostility and the preference for violence.
To investigate this problem a political participation scale was
developed. 148 male subjects (mean age 22.6 years) and 93 female
subjects (mean age 20.7 years) responded to the Political Participation Scale, the...
Agonistic behavior among three species of Microtus live-trapped
near Corvallis, Oregon was recorded in order to interpret habitat
segregation by the species in areas of syrnpatry. The method used to
measure agonistic interaction was similar to that of Colvin (1970).
Agonistic behavior was recorded under red light in a neutral...
The specific activity of ⁶⁵Zn (nanocuries ⁶⁵Zn/g total Zn)
was determined in various organs of the common coastal mussel,
Mytilus californianus Conrad, collected from six locations along
the Pacific Coast. These organs included the gills, mantle, foot,
reproductive organs, adductor muscle, and viscera. After ashing
and dissolving with nitric acid...
The purpose of this study was to evaluate the effects
that free ranging cattle have on water quality in semi-arid
environments. There were three specific objectives:
1) To determine the concentration and distribution of
cattle feces in meadows, riparian zones, and the
associated uplands. 2) To determine the fecal deposition...
The remodeling of the central nervous system (CNS) during metamorphosis in Drosophila melanogaster is a prime model system in which to study the genetic control of the sexual dimorphisms in the abdominal ganglion of the CNS. I have been using a P[tau-lacZ] enhancer trap line, 4.078, to label a segmentally...
Cultural and developmental characteristics of a collection of
Anthracobia melaloma with a brown hymenium and a barred exterior
appearance were examined. It grows well in culture on CM and
CMMY agar media and has a growth rate of 17 mm in 18 hours. It is
heterothallic and produces asexual multinucleate...
An 8 bit microcontroller slave unit was designed, constructed, and tested to demonstrate advantages and feasibility of master/slave parallel processing using conventional processors and relatively slow inter-processor communications. An 8 bit ISA bus controlled by an 80X86 is interfaced to a logic block that controls data flow to and from...
The purpose of this study was to investigate the differences
between middle- and lower-class adolescents and the extent of their
self-disclosure to their mothers and their fathers; and their feelings
both positive and negative toward their parents and themselves.
The subjects consisted of 50 middle-class and 50 lower-class
adolescents who...
This thesis examines two cultural productions of the Harlem Renaissance: Aaron Douglas's mural series, Aspects of Negro Life, and Nella Larsen's novel Passing. I read these works together because, more than their shared time period, they showcase an attention to the visual. Both Larsen and Douglas's works are concerned with...
In diversity combining automatic repeat request (ARQ), erroneous packets are combined together forming a single, more reliable, packet. In this thesis, we give a diversity combining scheme for the m-ary unidirectional channel. A system using the given scheme with a t-unidirectional error detecting code is able to correct up to...
The cultural and historical construction of African American identity in the United States has been closely tied to the dialectical relationship formed between sound and silence. This thesis examines the modernist and postmodernist representation of sound and silence in the African American novels Passing (1929), by Nella Larsen, and Jazz...
Post World War II victory culture and its fallout-the consensus ideology-led to the creation of a middle class willing to conform to a prescribed set of ideals, safely removed from all danger, and enjoying the material benefits of a growing middle-class income bracket. Walt Disney and Hugh Hefner, two seemingly...
This study examines the self-reported behavior and ideals of a
sample of upper level managers, in relation to conflict management
with subordinates.
A survey developed by the author, which measures directive and
participative managerial behavior and ideals, was sent to a randomly
selected sample of 250 female and 250 male...
Currently, the two most critical factors of microprocessor design are performance and power. The optimum balance of these two factors is reflected in the speed-power product(SPP). 32-bit CMOS adders are used as representative circuits to investigate a method of
reducing the SPP. The purpose of this thesis is to show...
Using robotics in education allows students to become familiar with multiple topics in science, technology, engineering, and mathematics (STEM). With the use of robotic educational tools in the 8th – 12th grade classrooms, such as Sphero, Anki Cozmo, and Lego Mindstorms, few devices allow students to build the robots’ electrical...
The primary purpose of this study was to explore preschool
aged children's sex-role preferences as they relate to both cultural
and parental stereotypes of sex roles.
Forty-seven children of preschool age and their parents acted
as subjects for this study. All children were enrolled in preschool
programs established by the...
Addition of the methylcarbamate compounds p-chlorophenyl
N-methylcarbamate (PPG-124) and 1-naphthyl N-methylcarbamate
(carbaryl) to various herbicides has resulted in reduced rates of
degradation. Carbaryl affects the degradation of certain herbicides
in both plants and soils while PPG-124 has only been demonstrated
to affect degradation in soils. Both these materials are effective...
Neurofilament proteins are intermediate filaments found in the neuronal cytoskeleton. Phosphorylation of these proteins is considered important for the assembly and stability of the filaments. Accurate molecular weights have been difficult to measure, largely because the high degree of phosphorylation results in M[subscript r]'S that are significantly greater than dictated...
Coral reef ecosystems are the most diverse on earth, and their subsistence is being threatened by natural and adverse anthropogenic patterns and processes. In an effort to understand and protect these marine environments, several programs have outlined strategies and initiatives. For example, the United States Coral Reef Task Force’s Mapping...
Populations of organisms are influenced by both top-down (predator driven) and bottom-up (environment or resource driven) effects. Seabird research has largely focused on bottom-up factors influencing reproduction, with little emphasis on top-down. Our goal was to better understand top-down impacts on colonial nesting seabirds over a range of spatio-temporal scales....
:
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Katie M. Dugger Robert M. Suryan
Populations of organisms are influenced by both
Sudden Oak Death (SOD) is a forest disease caused by the oomycete pathogen Phytophthora ramorum, and infects trees in the Western United States and Europe. This generalist pathogen can infect over 130 species of plants, and causes rapid mortality in tree species in the Fagaceae. Sexual reproduction is thought to...
Within the Pacific Northwest, USA, root diseases of conifers are a major forest health concern. These diseases are primarily caused by basidiomycete fungi. These fungal associates play a vital role in carbon sequestration but also have a significant negative economic impact within the timber industry. As a result, research on...
The purpose of this study was to examine Korean
physical educators' attitudes toward teaching
handicapped students in their regular classes. Ninety-eight
schools were randomly selected from middle
schools in Korea. A total of 213 Korean physical
educators was the sample size used in this study.
The survey instrument used was...
Shorebirds display great variation in mating systems and breed in dynamic environments that are increasingly subject to human threats worldwide. In order to adequately assess productivity and demography of shorebird populations, it is important to understand factors that influence patterns of parental care and reproductive success. The Black Oystercatcher (Haematopus...
This study sought to examine food choice motives and influences among Oregon Latinos to gain a greater understanding of their dietary acculturation. Previous studies relying principally on quantitative methods to assess the relationship between acculturation and diet have reported inconsistent results, though a general decline in diet quality is reported...
Forest harvest persists as one of the most globally important industries, and crucially provides raw wood products for both building and fuel materials. Mechanistically complex abiotic and biotic processes curb ecosystem recovery following timber harvest and it is of great importance to understand the effects of this practice on biogeochemical...
Current public health guidelines for physical activity (PA) were primarily formulated using evidence collected from a series of prospective cohort epidemiological investigations that measured self-reported PA. In light of this observation, and the known discordance between self-reported and objectively-monitored PA, it remains common for researchers to assess compliance to current...
Central Oregon has attracted attention as a potential location for a biomass industry based on a locally fixed source of western juniper (Juniperus occidentalis Hook) feedstock. This study identifies a supply of juniper from private lands to determine how much of the available juniper is economically supplied at alternative prices...
Biological di-nitrogen (N₂) fixation is a key process in open-ocean ecosystems, where the new nitrogen (N) provided by marine diazotrophs can support a large fraction of primary productivity and carbon (C) drawdown. Recent laboratory studies have shown that elevated pCO₂ enhances the rate of N₂ fixation by select laboratory isolates...
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Ricardo M. Letelier
Biological di-nitrogen (N2) fixation is a key process in open-ocean
Acculturation, defined as the process of adopting the behaviors and beliefs of the dominant host culture, is often associated with dietary change and negative health outcomes, such as increased risk for obesity and diet-related diseases. The large and rising immigrant population in the U.S. necessitates a better understanding of the...
The evolving United States demographics, evident from the most recent census, show a steady population growth for Hispanics. Research suggests that after immigrating to the United States, first-generation Hispanic populations seem vulnerable to weight gain and development of chronic disease. Many health professionals recognize the increased need for Spanish language...
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Mary M. Cluskey
The evolving United States demographics, evident from the most recent
Salmonid populations in the Pacific Northwest are at historic lows and many
populations continue to decline. Previous studies have linked salmonid declines to land
use through degradation of in-stream physical habitat, but few of these studies have taken
geology into consideration. This study relates habitat parameters known to be important...
The Tillamook and Kilchis subbasins of the Tillamook Bay watershed (Oregon Coast Range) have differences in geology and land use history and, therefore, varied environmental conditions that could affect fish assemblages. Fifty-two randomly selected wadeable stream reaches in these two subbasins were surveyed for stream habitat and fish assemblage composition...