To gain a better foothold on the communication system of the
avifauna, calls and songs of the American Robin (Turdus migratorius)
were recorded and analyzed using the sound spectrograph. Ten different
calls were recognized as follows: three alarm calls, an excitement
call, challenge call, contact call, two flight calls and...
Controlling competing vegetation with the application of herbicides and increased seedling size at planting has been shown to increase seedling survival and growth. These two important reforestation tools have often been studied independently of each other, limiting comparisons that can be made between them. This study utilized a factorial treatment...
The evolution and maintenance of multiple phenotypes within populations is an interesting evolutionary and ecological question, and is becoming increasingly important for the restoration and conservation of partially migratory species. In particular, why individuals adopt a particular phenotype has been the focus of numerous research efforts. In the partially migratory...
This research focused on the use of classical and modern two-dimensional spectral estimation techniques for enhancing inverse synthetic aperture radar (ISAR) imagery. 2-D Classical spectral estimation methods and 2-D modern parametric and non-parametric spectral estimation methods are applied to simulated and real data sets in order to achieve both range...
The Steller Sea Lion Research Initiative was passed in 2001 to provide funding to help scientists determine causes and solutions for the population crash of Steller sea lions (Eumetopias jubatus). In response to need to understand population dynamics of Steller sea lions, NOAA Fisheries has spearheaded a large-scale, range-wide research...
Glutenin protein molecules can form a large "macropolymer" which forms the elastic component of the gluten complex in wheat flour doughs. Little work has been done to investigate relationships between glutenin macropolymer (GMP) and noodle processing. GMP was isolated from flour of 4 wheat varieties; 3 hard- and 1 soft-grained...
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Andrew S. Ross
Glutenin protein molecules can form a large “macropolymer” which forms
Computer networking research has been going on for almost twenty years; however, most of the protocols concern high and low speed synchronous transmission. All synchronous communication needs special transmission lines. The TCP/IP (Transmission Control Protocol/Internet Protocol) protocols, Ethernet, X.25, X windows system are very successful protocols. Less work has been...
Proper management of peregrine falcons (Falco peregrinus)
includes management of its prey. Little quantitative data on
prey selection by peregrine falcons have been collected. The
objective of this study was to determine species and relative
abundance of prey brought to eyries by peregrine falcons during
the nestling stage and to...
Ammonia (NH₃) volatilization can result in a substantial amount of surface applied nitrogen (N) being lost into the atmosphere, making it an environmental pollutant as well as reducing plant-available N. However, N can also be easily lost from the soil through leaching,
and nitrous oxide (NO₂). Enhanced efficiency N fertilizers...
Two-year-old Douglas-fir [Pseudotsuga menziesii (Mirb.) Franco] seedlings of two seed sources raised in three nurseries in Oregon and Washington were tested for differences in frost hardiness from September 1985 to March 1986. The objective of the study was to determine whether nursery location had an influence on seedling acclimation, deacclimation...
Two-year-old ponderosa pine (Pinus ponderosa Laws.)
from two seed sources were grown at two nurseries. The
Fremont seed source was raised at Bend and Stone Nursery;
the Ochoco was grown at only the Bend Nursery. The
seedlings were fertilized in late September-early October
with nitrogen (N) or nitrogen plus potassium...
XML is a very versatile data format that has been used to represent many different kinds of data, including web pages, books, business and accounting data, programming interfaces, vector graphics, system logs, and games. In a short span of time, it has gained wide acceptance as the document and data...
Windthrow has been studied extensively as a cause of mortality and as a landscape
disturbance agent in temperate forests throughout the United States. The effects of
windthrow mortality on stand species composition and structure, forest regeneration and
seral development have been well described at the site (e.g. single gap) and...
Intra- and interplant movement and dispersal of the predator mites Neoseiulus californicus (McGregor) and Neoseiulus fallacis (Garman) were studied on both lima bean (Phaseolus lunatus L.) and apple (Malus pumila Miller) branch plant systems that were seeded with excess numbers of the spider mite Tetranychus urticae Koch. Individuals of either...
Understanding the tradeoff between water use and productivity is critical for modeling growth of intensively managed Douglas-fir forests in the Pacific Northwest. Evapotranspiration is closely linked to carbon dioxide intake during the process of photosynthesis. However, summer drought characterizing the growing season in this region imposes a limit on carbon...
Effect of a sudangrass green manure in two soil types on the activity, populations
and community structure of soil microorganisms, populations of Verticillium dahliae in
soil and on potato roots, and potato early dying, were evaluated in a field microplot
experiment in the Columbia Basin. Potato cv. Russet Burbank was...
Biohazardous waste refers to wastes that are potentially infectious to humans, as well as wastes from animal or plant research that could be potentially infectious to these organisms, or could alter their genetic selection process. Research resulting in generation of biohazardous waste is typically conducted at large, research-based universities. The...
Pacific lamprey (Lampetra tridentata) have historically been considered by the Western scientific community as a "trash" fish and generally overlooked in West Coast fisheries management. Recent population declines in Pacific Northwest streams have triggered new research to understand the life history and ecological significance of this species. These new studies...
Evidence for reduced reproductive success (RS) of wild spawning hatchery-reared fish invites serious consideration with regard to the detrimental effects on subsequent generations of wild populations. Mate choice was evaluated as a potential mechanism contributing to these observed RS differences using a previous pedigree of wild spawning hatchery-reared and wild...
Aquifers are an important storage location and source of fresh groundwater. They may become polluted by a number of contaminants including mobile divalent radionuclides such as strontium-90 which is a byproduct of uranium fission. A method for remediating such divalent radionuclides is sequestration through co-precipitation into calcium carbonate. Calcium carbonate...
This thesis details the applications of a new method of agent-based structure synthesis. The goal of this research is to create structures that meet a structural goal within a simulated physics environment. The method proposed works as an iterative process of changing the structure, evaluating the new structure and using...
Many authorities state that the development of macabre images were a result of the plague that first swept through western Europe 1347-1350. However, many aspects of the macabre were already in place prior to the plague. A more realistic explanation for the macabre is in the modification of religious belief,...
Potash rate and source effects on tuber yield and quality
(hollow heart, size, and processing quality), and nutrient (K, Ca,
Mg, and C1) concentrations in petioles and tubers were evaluated in
three experiments, two in the Columbia Basin in Oregon (McDevitt and
Levy) and one in Central Oregon (Powell Butte)....
Porchless Staircase is a collection of poetry investigating a wide range of themes: consumerism, death, sexuality, alcoholism, religion, writing, family, and, most frequently, isolation. At times toying with notions of the sublime and surrealism, the confessional and the imagistic, these poems vary in form, process, and style, but are loosely...
This work presents the design and implementation of a low power phased-array receiver frontend at 28 GHz in 65 nm CMOS. The frontend incorporates a low- power low-noise amplifier(LNA) and a passive reflection-type phase shifter (RTPS) capable of providing 360° phase shift with 5-bit phase resolution and low loss variation....
In unstable landscapes, modern pedological research explores the role of soils as products and indicators of geomorphologic change. Understanding the dynamics of hill slope pedogenesis is especially important in regions with limited, poor, or threatened soil resources. The island of Cyprus, situated in the eastern Mediterranean, is claimed by many...
The taxonomic status of Microtus canicaudus was compared
with that of a morphologically similar vole, Microtus montanus. Four
means of comparison were utilized: hybridization experiments, comparative
karyology, growth distinctions (total length and body weight),
and qualitative behavioral observations. The hybridization experiments
indicated that, while the incidence of pregnancy of M....
This research is based on in-depth interviews with 20 women farmers and
ranchers from the state of Oregon. These women employ a variety of methods and
subscribe to a number of divergent philosophies regarding agricultural practices.
The intention of this study is to examine how women who are the primary...
Effects of amount of applied water and frequency of irrigation
on head rot and yield of three broccoli cultivars were evaluated in
1987 and 1988. Two irrigation frequencies were established with a
line-source sprinkler system for 5.5 weeks during heading. The low-frequency
experiment was watered once per week and the...
Resistance to acetohydroxyacid synthase (AHAS)-inhibiting herbicides has been reported in over 90 weedy species, including wild sunflower biotypes, since the herbicides were developed in 1982. The AHAS gene family in sunflower, consisting of three paralogs AHAS1 , AHAS2, and AHAS3, has been targeted for inducing herbicide resistance. A polymorphism identified...
The effectiveness of tangential flow filtration (TFF) for
recovery of infectious hematopoietic necrosis virus (IHNV) and
infectious pancreatic necrosis virus (IPNV) from large volumes of
water was evaluated. In laboratory studies, virus recovery from
IHNV-seeded water following concentration by TFF was approximately
13%. However, addition of 0.1 and 1% FBS...
The purpose of this study was to identify and examine risk and protective factors associated with residential instability within a sample of rural low-income mothers. Residential instability was defined as two or more residential moves within the course of a year. Qualitative and quantitative methods were used to compare residentially...
Given the high risk of relapse during the first year of exercise involvement, it is
important to determine the processes of self-motivation which enable novice exercisers to
become long-term maintainers. This study was designed to extend previous Stages of
Change (Prochaska & DiClemente, 1983) research by comparing the Possible Selves...
The primary objective of this research was to determine if native species within the genera Castilleja and Pedicularis are naturally infected by white pine blister rust (Cronartium ribicola) in whitebark pine ecosystems of the Oregon and Washington Cascade Range. Secondary objectives were to monitor the phenology of aecial and telial...
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...
Private forest owners face an increasing risk of economic damage from extreme wildfires as the climate becomes warmer and drier. This thesis empirically estimates the influence of climate on private forest owners’ management decisions using plot-level data in the Pacific states of the U.S. Econometric models are specified where the...
Conventional training methods in most medical fields seek to avoid errors, framing them as negative consequences instead of as learning opportunities. Error-management training (EMT) contrasts with conventional methods by explicitly encouraging trainees to make errors through low-stakes training modules in an effort to alter perspectives on errors, utilizing them as...
Foresters care about site productivity and stem quality in Douglas-fir plantations for many reasons. The profitability of forest land and the economic returns on silvicultural investments are directly related to site productivity. Thus, understanding the relationships among Douglas-fir productivity, stem form and site characteristics is important economically. My objective was...
A new method is presented to compress switching information in large digital circuits. This is combined with an efficient approach of generating the noise signatures of cells in a digital library that results in an accurate and efficient approach for estimating the noise generated in digital circuits. This method provides...
Analysis of substrate noise coupling has been performed for a 0.18¹m lightly doped silicon germanium BiCMOS process. Techniques to minimize noise coupling in the chip and board design are presented, as well as methods for accurate modeling for substrate noise coupling simulations. Measurements from a test chip were taken to...
This thesis examines the rhetoric of Theodore Dwight Weld's American Slavery
As It Is: Testimony of a Thousand Witnesses. Published anonymously in 1839, Weld's
publication became the longest antislavery tract in American history. It left its mark on
the abolitionist movement itself and future antislavery literary works most notably
Uncle...
Racial, ethnic and gender diversity have been long term topics of discussion in natural resources. Yet to date, there has not been a comprehensive review of the existing literature within the discourse of demographic diversity. Therefore, I conducted a systematic review of demographic diversity in the disciplines of forestry, fisheries,...
The power dissipation of microstrip transmission-line on
gold-doped silicon substrates was investigated. The gold-doping was
applied to a regular n-type silicon substrate with resistivity of 5 to
10 ohm-cm. Insertion-loss tests were employed to measure the
power dissipation of the microstrips. Power dissipation somewhat
less than that for intrinsic silicon...
In order to synthesize polyethylene by the microreactor with a catalyst, this thesis prepares the chemical coating layers for the reactor channel. There are two layers in the channel: the Phillips catalysts and an antimony-doped tin oxide layer on glass substrate. The Phillips catalyst help to synthesize polyethylene in the...