Effect of 6.0% polyphosphate treatment on microbial growth and
composition of microbial flora of three representative seafoods were
investigated.
Polyphosphate treatment washed off microorganisms by 1 log in
peeled shrimp (10⁷ to 10⁶ and 10⁶ to 10⁵) and cooked crab meat (10⁶
to 10⁵) and by 2 logs in red...
Trimethylamine-N-oxide (TMA-0) reductase activity of resting cells
of Escherichia coli was inhibited by tetrasodium ethylenediaminetetraacetate
(Na₄EDTA), benzoic acid (BA), and methylparaben (MP). The 50% inhibitory
concentrations of Na₄EDTA, BA, and MP were 20.2, 1.2, and 32.4 mM,
respectively. BA at pH 6.5 or below most effectively inhibited the TMA-0
reductase....
In order to determine the source of bacteria in Tillamook Bay,
Oregon, water samples were collected monthly for six months during
the rainy season from October 1975 through March 1976 from the bay
and its tributaries, the Kilchis, Trask, Tillamook, and Wilson
Rivers.
Fecal coliform levels of these samples were...
Forty Arthrobacter species isolated from Pacific and Atlantic fishery sources were examined to determine their significance in seafood. All strains were able to utilize inorganic nitrogen as the sole nitrogen source and grew in the absence of vitamins or growth factors. In addition, 78% grew on a medium containing only...
Sterile fish muscle homogenate was prepared from the individually
line caught black rockfish (Sebastes melanops) and inoculated
with the pure culture of Pseudomonas putrefaciens strain 17. The
inoculated homogenate was incubated at 5°C and the growth and production
of volatile sulfur compounds determined by a combined gas-liquid
chromatography and mass...
Pacific shrimp (Pandalus jordani) was washed repeatedly and the
eluted bacteria were enumerated and identified. Selected isolates
were tested for their adhesive properties.
Washing reduced the microbial load by 3.84 to 42.04%. The bacteria
which most resisted wash-off were Staphylococcus and Pseudomonas
spp. The easiest to wash off was Flavobacterium...
One hundred and fourteen strains of Moraxella species isolated
from marine fishery sources were investigated to determine the cause
of this organism's predominance in seafood. The nutritional requirements,
effect of pH, NaCl concentration, and temperature on growth,
utilization of carbohydrates, protein, and lipid, resistance to 12
antibiotics, sensitivity to phenethyl...
Aerobic heterotrophic bacteria associated with oyster larvae feed
algae Isochrysis galbana, Monochrysis lutheri and Pseudoisochrysis
paradoxa were isolated and enumerated. The bacterial numbers ranged
from 7.8x10³ to 3.9x10⁶ CFU per ml. The bacteria associated with
Pseudoisochrysis sp. were identified and the majority of isolates
belonged to genera Leucothrix (51%). Also...
The storage life at 43°F of ground dover sole fillets (Microstomas pacificus) was determined microbiologically after treatment with
ionizing radiation and antimicrobial agents. Sodium benzoate, potassium
sorbate and the sodium salts of the methyl and propyl esters
of parahydroxybenzoic acid (MPB and PPB) all approximately doubled
the refrigerated storage life...
Achromobacter A43 produced a compound inhibitory to the outgrowth
of Clostridium botulinum type E spores. The inhibitor could
be produced in various laboratory media and the outgrowth of germinated
spores was completely inhibited by 1/10th dilution of the A43
spent medium. Germination was not affected. The spores lost
refractility in...
This thesis examines the characterization of the femme fatale and the implications of this trope for late-Victorian gender and sexuality in the ghost stories of female aesthete Vernon Lee. In her treatment of the femme fatale figure, Lee both reinforces and complicates the image of the sexualized, often bestialized woman...
NAND flash based solid state drives (SSDs) require out-of-place updating due to the characteristics of flash memories. In addition, due to the mismatched granularity between read/write and erase operations, a cleaning policy involving garbage collection and wear leveling has to perform data migration incurring high overhead. Another challenge is that...
A Mobile Ad-hoc NETwork (MANET) is collection of wireless mobile nodes without a network infrastructure or centralized administration. Although MANETs can be used in many applications, such as mobile Internet, military communication, and disaster relief networks, a number of challenges remain. These include routing, medium access control, security, scalability, energy...
High Definition video streaming over WLANs faces many challenges because video data requires not only data integrity but also frames have strict playout deadline. Traditional streaming methods that rely solely on either UDP or TCP have difficulties meeting both requirements because UDP incurs packet loss while TCP incurs delay. This...
This field investigation was designed to further
the understanding of the significant influence which
parent population density, as well as dispersion, have
on the dynamics of enclosed populations of the montane
vole, Microtus montanus (Peale). The study was conducted
in Klamath County, Oregon from June, 1963 to February,
1964. The...
MANETs are known to be useful in situations where mobile nodes need to communicate and coordinate in dynamic environments with no access to fixed network infrastructure. However, connectivity problems can occur when sub-groups within a MANET move out of communication range from one another. The increasingly prolific use of UAVs...
The major purpose of this study was to develop a resource unit
in consumer education. In order to plan this unit, the writer:
1. Reviewed findings in the literature.
2. Discovered, through use of student questionnaires, which
concepts were most relevant to senior students at Grants Pass
High School, and...
The AE32000 processor core, developed by Advanced Digital Chips Inc., Korea, is used primarily in the embedded processing environment. The AE32000 simulator models this embedded processor core having high code density. An enhanced simulator was developed to study the performance of the present Instruction Set Architecture after comparison with the...
Efficient routing of messages is critical to the performance of multicomputers. Many adaptive routing algorithms have been proposed to improve the network efficiency; however, they can make only short-sighted decisions to choose a channel for message routing because of limited information about network condition. The short-sighted decisions may cause unnecessary...
Mobile devices are becoming more prevalent and complex. As a result, the wireless communication aspect of these devices is becoming increasingly significant. At the same time, video demands in terms of availability and quality are also on the uprise. High definition (HD) video is the standard of choice for meeting...
AE32000 microprocessor was developed mainly to address the need for the reduction in the amount of memory accesses in embedded applications. One of the primary goals of a computer architect is the design and construction of machines, that support the efficient execution of the programs that will run on them....
The azalea lace bug (Stephanitis pyrioides Scott) is a recently detected invasive pest to the Pacific Northwest and has become a major concern in Oregon. It feeds on azaleas as well as rhododendrons causing stippling on the top side of leaves. The damage is aesthetically displeasing and affects plant vigor...
Rapid advances in wireless networking have led to more mobile phones, PDAs, and other digital mobile devices becoming ubiquitously connected to the Internet. As the demand of delay sensitive real-time applications for these portable devices increases, providing seamless connectivity to wireless networks becomes a critical issue. For this reason, a...
As screen resolution and video decoding capability have increased, high-definition (HD) video in resolutions as high as 1920 x 1080 is rapidly becoming the standard. Ad-hoc streaming of HD video over 802.11 wireless networks, e.g., streaming from a mobile device to a television, is convenient for users, but is hampered...
The central problem of the study was to explore the relationship
between the minimum competencies and characteristics chosen by
child development specialists as necessary for a child care aide and
those sought by child care center directors when hiring an aide. A
survey instrument was developed consisting of 49 basic...
The purpose of this thesis is to explore methods which can reduce the power dissipation of a mobile system while decoding MPEG video. MPEG decoding is a microprocessor intensive process that makes heavy use of both the L1 and L2 caches as well as main memory. The heavy load placed...
Historically, patient days were used to assess pharmacy staffing levels at Albany General Hospital. It was the impression of the director of pharmacy that patient days were an incomplete and therefore unacceptable indicator of personnel requirements. Therefore, a study was initiated to: 1) develop a methodology that would document and...
This thesis focuses on performances of masculinity by British Royal Flying Corps (RFC) airmen in the charged landscape of the First World War prisoner of war (POW) camp. I examine how captive airmen coped with imprisonment by reasserting the familiar homosocial communities of pre-capture squadron life, particularly through practices associated...
The Advent of multi-cores allows programs to be executed much faster than before. Cryptoalgorithms use long-bit words thus parallelizing these operations on multi-cores will achieve significant performance improvement. However, not all long-bit word operations in cryptosystems are suitable for parallel execution on multi-cores. In particular, long-bit words used in Elliptic...
The increasingly corporatized and privatized public university has resulted in significant role changes for students and faculty. Among these changes includes the development of online education and its proliferation among various disciplines to not only increase educational access, but to sustain budgetary program needs. Such processes are occurring in women's...
During the summer of 1996, I had the opportunity to do an internship with the
Florida Keys National Marine Sanctuary (FKNMS) at Lower Key Office, Key West,
Florida. Established in November 1990 under the Florida Keys National Marine
Sanctuary and Protected Act, the FKNMS is a federal agency managed by...
The purpose of this study is to develop experimental techniques to
characterize typical interconnect discontinuities, including bends, steps, T
junctions, vias and pads, which are the most commonly encountered
interconnections in high speed digital integrated circuits, hybrid and
monolithic microwave circuits and electronic packages. The time domain
reflection response of...
Modern superscalar processors exploit instruction-level parallelism (ILP) by issuing multiple instructions in a single cycle because of increasing demand for higher performance in computing. However, stalls due to cache misses severely degrade the performance by disturbing the exploitation of ILP. Multiprocessors also greatly exacerbate the memory latency problem. In SMPs,...
All individuals are part of a family, and are confronted with
all the complexities that accompany family life during some portion
of their lifetime. Thus, inter-relationships between all family
members are an important aspect of education.
The school curriculum should be relevant to the needs of youth.
Family life education...
Settlement of structures built on geologically recent compressible alluvium is a common cause of concern during design. Total settlement results from a combination of: 1) initial elastic settlement, 2) primary consolidation, and 3) secondary compression. The reliability of prediction of total settlement is affected by an understanding of these components...
The study was designed to answer the following questions
1. What do eighth graders think is important in homemaking
classes?
2. Who do eighth graders believe should enroll in homemaking
classes?
3. What factors influence whether eighth graders take
homemaking?
4. How do eighth graders rate the importance of homemaking...
The purpose of this study was to develop a programmed learning
booklet concerned with the care of groups of young children. The
instructional material was designed to be used in homemaking and
occupational programs. The criteria for developing the program were
(a) that it be geared to the student with...
In this thesis, I present studies in the field of terahertz [THz] spectroscopy. It covers both the generation and detection of ultra-fast broadband THz pulses, as well as the transmission properties of vertically grown multi-walled carbon nanotube forests [MWCNTs]. We have found that these vertically grown MWCNTs respond strongly to...
This thesis examines the role of Erikson’s (1950) theory of generativity in facilitating knowledge transfer during the preretirement transition. McAdams and de St. Aubin’s (1992) updated framework for generativity is used as a theoretical foundation to explain motivation and actions during this period. Through the use of multiple-case studies, twenty-one...
The purpose of the study was to develop guidelines for the
establishing and teaching of a home economics program within a
standard, non-laboratory classroom.
An opinionaire was developed and sent to 34 administrators of
small high schools and junior high schools in Oregon believed to have
no home economics programs...
Home range, dispersal, homing and density of Townsend's mole, Scapanus townsendii (Bachman), were studied during 1964 near Tillamook, Oregon. Additional information on the success of marking
and capture techniques and the response of moles to flooding was gathered. This study was initiated to supply information which might aid in the...
The purposes of this study were to discover what home economics
teachers are doing in Oregon in career education and how
they can be better prepared to teach home economics occupational
preparation courses.
Postcards were sent to home economics departments in 194
public high schools and 83 public junior high...
Halyomorpha halys Stål, brown marmorated stink bug or BMSB, is now present in 43 US states. A native of eastern Asia, this pest can feed on ~200 different plant species damaging bark, leaves, buds, stems, and fruits. Many of these plant species include wild plants, ornamentals, and agricultural crops. BMSB...
The purpose of the study was to develop a proposed in-service program for cooperating teachers who supervise student teachers. Forty-one cooperating teachers for the Home Economics Education Department of Oregon State University rated the competencies of a good supervisor of student teachers. Also, 17 heads of home economics teacher education...
Evidence suggests that western juniper
(Juniperus occidentalis) in Central Oregon affects
understory production and composition. As trees
increase in size and density, understory production is
reduced and composition changes. This study was
designed to identify the relationship between
production and composition of understory vegetation
and various tree canopy sizes of...
Most parents want their children to grow into independent adults,
able to make decisions with which they can live, and able to cope with
the pressures and problems of a world different from that which the
parents have known.
Parents are teachers of their children and as such they need...
This research assessed the effect of western juniper (Junlperus
occldentalls) removal on understory plant production and cover and
ponderosa pine (Pinus ponderosa) growth and plant water status.
A complete randomized block design, with four blocks and four
treatments was established in the summer of 1984 near Prineville,
Oregon. The four...
The azalea lace bug (Stephanitis pyrioides Scott) is a global pest of rhododendrons and azaleas (Rhododendron spp.). It is originally from Asia, has been established in the eastern U.S. for the past century, and was recently detected in the Pacific Northwest in 2008-2009. Stephanitis pyrioides feeds on the underside of...
Quick Response is an umbrella term for strategies to cut lead times and to eliminate unnecessary production costs from a manufacturing plant to a consumer market. In particular, the textile and apparel industries need strategies to quickly respond to a changeable market in the international supply chain. As the industry...
Characterizing the hydrophobicity of nanoparticles can help us understand their fate and transport in the environment, as well as how nanoparticles may interact with biological systems. However, contact angle and partition coefficient have limitations in measuring the hydrophobicity of nanoparticles, thus promising methods to measuring the hydrophobicity of nanoparticles are...
The consumptive water use of six cities in the Willamette
Basin of northwestern Oregon was evaluated for the period 1960-66.
Consumptive use ratios were obtained by analyzing data from monthly
water supply and sewage flow records. The average annual consumptive
use for the six cities was found to be 26...
Species associations of fifteen major commercial groundfish species in the
northeastern Pacific ocean and their spatial and temporal characteristics were studied
using Oregon bottom trawl logbook data, 1987 to 1993. Screening procedures were used
to remove questionable data from the original logbook files, which resulted in the
exclusion of information...
Understanding the effects of habitat disturbance on a species' habitat selection patterns, and demographic rates, is essential to projecting the trajectories of populations affected by disturbance, as well as for determining the appropriate conservation actions needed to maintain those populations. Greater sage-grouse (Centrocercus urophasianus) is a species of conservation concern...
During a 13-month period starting in October of 1976, adult
male rough-skinned newts (Taricha granulosa) were collected periodically
to study seasonal changes in reproductive status. Plasma
androgen concentration, measured by radioimmunoassay, is elevated
during autumn and spring (about 50 ng/ml). Winter and summer levels
are considerably lower (less than 10...
We have developed crown-gall resistant transgenic plants capable of suppressing Agrobacterium tumefaciens T-DNA oncogenes. Crown gall tumors result from overproduction of auxin and cytokinin in plant cells transformed by A. tumefaciens. High phytohormone levels result from expression of two auxin biosynthetic genes, tryptophan monooxygenase (iaaM) and indole acetamide hydrolase (iaaH),...
This is an interdisciplinary study combining the areas of
Sociology, Religious Studies, and Adult and Community Education.
Drawing from these disciplines, an investigation was made into
the religious and socio-economic variables of development and
their relation to family planning policies in the Muslim world.
The primary focus in this study...
Eleven cruises were conducted on the Oregon continental slope from April 1973 to March 1975 to assess the biology and ecology of the Tanner crab, Chionoecetes tanneri Rathbun. Bathymetric and seasonal analysis of the distribution of adult Tanner crabs west of Coos Bay, Oregon, revealed no segregation of sexes or...
In rats, sesame lignans increase plasma γ-tocopherol concentrations and inhibit γ-tocopherol degradation to its metabolite γ-carboxyethylhydroxychroman (γ-CEHC). To test if sesame lignan consumption inhibits γ- tocopherol metabolism in humans, muffins prepared with either corn oil (control) or sesame oil and an equimolar mixture of deuterium labeled d6-α- and d2-γ- tocopheryl...
Improved assay methods for determination of dyphylline levels in plasma, saliva, and urine utilizing high pressure liquid chromatography have been developed. Detection of levels as low as 25 ng/ml from 0.5 ml plasma and 50 ng/ml from 0.5 ml saliva were possible. Both procedures utilized the same extraction process. A...
This thesis presents an algorithm that estimates motion in image sequence using wavelet transform. The motion detection is performed under unfavorable conditions of background movement, change of brightness, and noise. The algorithm is tolerant to brightness changes, noise, and small movement in the background. The false alarm rate of motion...
The objectives of this study were: 1) to learn the life history and habits of Medetera aldrichii Wheeler and a Lonchaea sp. in association with the Douglas-fir beetle, Dendroctonus pseudotsugae Hopkins, in western Oregon and Washington; 2) to determine if the larvae of M. aldrichii were predaceous on the Douglas-fir...
Deposition characteristics of magnesium silicate and calcium carbonate on a heated surface in cooling tower water using city water as make-up was investigated. Flow velocity, bulk temperature and calcium hardness were maintained constant at 5.3 ft/ sec, 95°F and 150 ppm as CaCO₃ respectively whereas surface temperature varied from 105°F...
The geopotential anomalies and the average meridional geostrophic
flow off Newport, Oregon, were computed from the data taken
during twenty-one hydrographic cruises.
The annual average of geopotential anomaly was 1.31 dynamic
meters with a seasonal variation of the order of 14 dynamic centimeters.
Highest values of geopotential anomaly occurred in...
Among sexually-active, young women, the motivation to contracept
seems to be more of an issue than the technology. This study explored
two factors associated with the motivation to contracept; specifically,
the relationship of sex role orientation (SRO), and locus of control
(LOC), to the contraceptive use patterns of 77 unmarried,...
The wakeup logic in out-of-order superscalar microprocessors is responsible for resolving the data dependency hazard between instructions. Its performance is critical because it may prevent the processor to have deeper pipelines or to achieve the highest IPC (Instructions Per Cycle) possible. In this thesis, we implemented the circuit and layout...
The use of a three-pipe distribution system is known to impair
the operating costs of an air conditioning system. Additional costs
are encountered because heating water and cooling water are mixed
in a common return pipe after use by the various air conditioning
units. This investigation covers the design and...
Since many 1, 4, 5, 6-tetrahydropyrimidines have become available
and commercially useful in recent years, a study of the chemistry
of certain of these compounds has been undertaken.
2-Hydroxy- and 2-mercapto-1, 4, 5, 6-tetrahydropyrimidine
have been synthesized by the condensation of urea and thiourea, respectively,
with 1, 3-propanediamine, with yields...
The reaction of cyclodeca-1,215triene with mercuric salts
gave only rearranged hydrocarbon, tricyclo[4.4.0.0²'⁴]deca-5ene
in acetic acid. Other catalysts [Rh(CO)₂C1]₂ and AgC10₄ gave
the same rearranged hydrocarbon. The isomerization is proposed
to proceed through a "metalcomplexed" carbenoid intermediate.
The reaction of bicyclo[7.1.0 ]deca-213diene gave
oxymercurated products.
Substantial research has shown deficits in the quality of end-of-life care in the U.S. In response to evidence of these deficits, efforts have been made to improve quality of end-of-life care. One approach has been to ask the question, "What is a good death?" Data on views of a good...
Real-world datasets are dirty and contain many errors. Examples of these issues are violations of integrity constraints, duplicates, and inconsistencies in representing data values and entities. Applying machine learning on dirty databases may lead to inaccurate results. Users have to spend a lot of time and effort repairing data errors...
Leptarctia californiae (Walker) was studied on clear and semi-forested southern slopes in the Coast Range Mountains of Benton County, Oregon. The spring of 1965 had an unusually long warm period (21 days) resulting in adult emergence approximately 25 days earlier than in the cooler spring of 1966. Peak flight activity...
Meteorological aspects of geothermal energy development are first
discussed in general terms. An instructive case study is then presented
of a hypothetical 100 MW geothermal electrical generating plant at
a site near Vale, Oregon. Long-term climate data from Ontario Airport
near Ontario, Oregon, are used to describe meteorological characteristics
of...
Intermittent, headwater streams recently have been recognized as important
components of forest ecosystems and have been provided increased protection by the
Northwest Forest Plan. However, few studies have examined their distribution,
dynamics, and ecological roles, such as habitat for wildlife. My goal was to provide
additional information on the ecology...
Economic Scheduling Path (ESP) is an extension to the Critical
Path Method. It was developed by Professors Riggs and Inoue of
Oregon State University to effectively optimize resource utilization
in repeated projects.
This paper summarizes the Economic Scheduling Path terminology,
ladder network representations, algorithms, and progress
charts as originally presented...
This study was conducted to observe the manner in which three local
public interest organizations participated in a local, environmentallyoriented
decision process. The study period began in December, 1978,
with the passage of a revised solid waste ordinance (Ord. 78-102) for
the City of Corvallis, OR. The main forum for...
In standard training regimes, one assumes that the classes presented to a model constitute all of the classes that the model will encounter when it is deployed. In real deployment scenarios, however, a model can sometimes encounter situations or objects that it has never seen. When these scenarios are safety-critical,...
Fully efficient systolic arrays for the solution of Toeplitz
matrices using Schur algorithm [1] have been obtained. By applying
clustering mapping method [2], the complexity of the algorithm is
0(n) and it requires n/2 processing elements as opposed to n
processing elements developed elsewhere [1].
The motivation of this thesis...
Recently, switched-current circuits have received great
attention because they offer potentially better performance in terms
of speed, low voltage power supplies, and accuracy in mixed-mode
analog-digital signal processing. In this thesis, the distortion
characteristics, DC offset and AC gain errors induced by the threshold
voltage, channel width, channel length, and...
Both oxy-Cope and siloxy-Cope rearrangements involve
(1, 3) and (3, 3) sigrnatropic shifts. Both the concerted mechanism,
and the stepwise mechanism via a diradical intermediate are possible.
In a cyclic system such as cis-l-vinylcyclooct-3-en-l-ol, the thermal
rearrangement takes place preferably through a diradical intermediate.
At high temperature, the reaction also...
The lakes, rivers and coastal waters of Oregon have long provided the state's residents
and visitors with unique recreational boating environs and opportunities. However, this popular
activity represents more than a form of recreation: boating is an important component of the
Oregon economy. Each year, boaters spend millions of dollars...
Using supervised machine learning (ML) to train a computer vision model typically requires human annotators to label objects in images and video. Given a large training dataset, this can be labor intensive, presenting a significant bottleneck in the model-development process. LabelFlicks is an open-source desktop application that aims to address...
A silvopastoral system using a Douglas-fir
(Pseudotsuga menziesii) tree crop and subclover (Trifolium subterraneum) as a nitrogen-fixing forage crop was
investigated near Corvallis, Oregon, during 1983-1985.
Treatments included all possible combinations of three
planting patterns (no trees, trees planted 2.5 m apart in a
grid, and clusters of five trees...
In recent years, RF (Radio Frequency) device fingerprinting using deep learning has emerged as a method of identifying devices solely by their RF transmissions. Conventional approaches to this type of device fingerprinting are not portable to different domains. That is, if a model for this purpose is trained on data...
This thesis examines the nature of publishing as a political endeavor through a detailed investigation of the feminist publishing movement in the U.S. since the 1970s. Feminist publishers emerged from an activist context of feminist struggle, and they evolved within changing political and social climates, facing ideological and economic challenges...
The settlement history of a remote area in the Coast Range of Oregon, from the 1870s to the 1930s, is examined through factors that may have influenced the success or failure, and length of residence of the homesteaders and later residents. Despite the rugged and isolated location, a small community...
The settlement history of a remote area in the Coast Range of Oregon, from the 1870s to the 1930s, is examined through factors that may have influenced the success or failure, and length of residence of the homesteaders and later residents. Despite the rugged and isolated location, a small community...
A time dependent model of the shallow, tropical convective boundary layer is
developed and tested. To simplify the treatment of thermodynamic processes and
return to first principles of physics, conserved quantities of entropy and total
water density are used as primary model variables. In addition, a new shallow
cumulus parameterization...
Considering the negative impacts of climate change along with the rapid increase in population in Islamic dominated states, e.g., the Middle East, water tension among upstream and downstream states is increasing. Despite the importance of water in Islamic culture and studies, the role of religion has been under-valued and under-emphasized...
Decreasing mortality rates and increasing life
expectancy are contributing factors in a trend currently
referred to as the "graying" of America. Some members of
this aging population will require caregiving support from
their families. Because women tend to outlive men, adult
daughters generally assume this important role for their
widowed...