A comparative study was made on the effect of urea denaturation
of bovine serum albumin (BSA), polyglycyl BSA and poly-L-phenylalanyl
BSA. The denaturation process was followed by ultraviolet
spectrophotometry and optical rotation.
A blue shift in the absorption maximum at 278 mμ was observed
in urea denatured proteins, In 7M...
In pursuit of global sustainability, forestry has witnessed significant shifts in practices and the development of new technologies and ideas. Primary and secondary processing industries have made substantial efforts to increase wood utilization rates, improve occupational safety and the working environment for humans, and have exhibited interest in procuring raw...
The efficiency of a marine cargo terminal depends
primarily upon a smooth and orderly flow of material
during the container loading process. It has been
observed that the transtainer operation is the bottleneck
in the loading process due to frequent rehandles of
containers and the speed of the transtainer. Past...
Quickersort, Straight Insertion Sort, Mehlhorn's AVL-tree Sorting Algorithm and Cook's new sorting algorithm are compared on nearly and nedium sorted lists. The ratio of the minimum number of list elements that must be removed so that the remaining portion of the list is in order to the size of the...
With sequential computing technology reaching its speed limits, parallel processing is emerging as the key to very-high-speed computation. However, developing a parallel program is by no means a simple task; neither is analyzing the performance of parallel programs.
C* is a high-level data-parallel language that hides explicit message passing and...
In mature Arabidopsis seeds, the testa (seed coat) is no longer a living tissue. Thus,
major sites of gene expression in imbibed seeds are the internal living tissues such
as the embryo and the endosperm. To elucidate the molecular mechanisms of seed
germination, the gene regulation in these two tissues...
Zinc (Zn) deficiency is a problem world-wide. Current methods for assessing Zn status are limited to measuring plasma or serum Zn within populations suspected of deficiency. Despite the high prevalence of Zn deficiency in the human population there are no methods currently available for sensitively assessing Zn status among individuals....
Growing demand for bioenergy, biofuels, and bioproducts has increased interests in the utilization of biomass residues from forest treatments as feedstock. In areas with limited history of industrial biomass utilization, uncertainties in the quantity, distribution, and cost of biomass production and logistics can hinder the development of new bio-based industries....
Internal tide generation, propagation, and dissipation are investigated in Luzon Strait, a system of two quasi-parallel ridges situated between Taiwan and the Philippines. Two profiling moorings deployed for about 20 days and a set of nineteen 36-h lowered ADCP-CTD time series stations allowed separate measurement of diurnal and semidiurnal internal...
Internal tide generation, propagation, and dissipation are investigated in Luzon Strait, a system of two quasi-parallel ridges situated between Taiwan and the Philippines. Two profiling moorings deployed for about 20 days and a set of nineteen 36-h lowered ADCP–CTD time series stations allowed separate measurement of diurnal and semidiurnal internal...
A low-voltage plateau at ∼0.3 V is discovered during the deep sodiation of Na₃V₂(PO₄)₃ by combined computational and experimental studies. This new low-voltage plateau doubles the sodiation capacity of Na₃V₂(PO₄)₃, thus turning it into a promising anode for Na-ion batteries.
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as an anode for Na-ion batteries
A new low-voltage plateau of Na₃V₂(PO₄)₃ as an anode for Na-ion
Two-phase gas-liquid flows in microscale fractal-like branching channel flow networks were experimentally studied to assess the validity of existing void fraction correlations and flow regimes based on superficial gas and liquid velocities. Void fractions were assessed using two different methods. First, void fraction data were acquired using a High-Speed-High-Resolution (HSHR)...
Cell death is a process of dying within biological cells that are ceasing to function. This process is essential in regulating organism development, tissue homeostasis, and to eliminate cells in the body that are irreparably damaged. In general, dysfunction in normal cellular death is tightly linked to cancer progression. Specifically,...
The inhibition of mixed-function oxidase (MFO) activity by ethanol or acetaldehyde was examined in vivo by monitoring changes in salivary half-life of antipyrine or aminopyrine in adult male Sprague-Dawley rats. Ethanol (1-6 g/kg, po) or acetaldehyde (4-8 mmol/kg, ip) was administered 20 minutes prior to antipyrine (100 mg/kg, ip) or...
Solid solutions based on the perovskite ferroelectrics Bi₀.₅Na₀.₅TiO₃ (BNT) and Bi₀.₅K₀.₅TiO₃ (BKT) might someday replace current Pb-based ferroelectric and piezoelectric devices. This is one goal of the Restrictions on Hazardous Substances (RoHS) guidelines seeking to limit Pb in consumer devices. Although the Bi-based ferroelectrics are well suited to the task...
Porous carbon is indispensable in modern technology applications. It is used for energy storage, gas separation, water purification, catalyst support, and chromatography. The diversity of its applications stems from its unique properties, including high specific surface area, tunable pore volume, and chemical stability. Specifically, the large surface area provides high...
A scalable synthesis of the "flat" tridecameric inorganic cluster [Al₁₃(μ₃-OH)₆(μ-OH)₁₈(H₂O)₂₄]¹⁵⁺ has been realized by treating an aqueous aluminum nitrate solution with zinc-metal powder at room temperature. Single crystals and polycrystalline samples are readily obtained in yields exceeding 55% relative to the starting reagent Al(NO₃)₃. Products have been characterized by X-ray...
The soil-borne pathogen Rhizoctonia solani AG 8 causes major yield losses in wheat (Triticum aestivum. L) production worldwide. Plant tissues of Brassicaceae species contain glucosinolates that are hydrolyzed in the presence of the enzyme myrosinase into products with pesticidal properties. Growth chamber studies were conducted to determine the effect of...
According to USDA research, Oregon in 2002 had the highest rate of hunger and one of the highest rates of food insecurity in the United States. Although the margin of error involved with these statistics indicates that the state may not actually be at the top of the list, a...
This is a listing of both PhD and Master's· theses relating to the areas of forestry issued during the period from July 1976 to June 1981. The
list is arranged first by state, then by college or university within each state. Authors of theses are arranged alphabetically under each of...
English sole (Parophrys vetulus) is a flatfish found in abundance in the Pacific Ocean and is part of the Pacific Northwest's and California's commercial trawl fishery. Stock levels of this fish are at all time highs but there are decreased landings due to low demand and acceptability. With new regulations...
Small chemicals like drugs tend to bind to proteins via noncovalent bonds, e.g. hydrogen bonds, salt bridges or electrostatic interactions. Some chemicals interact with other molecules than the actual target ligand, representing so-called ‘off-target' activities of drugs. Such interactions are a main cause of adverse side effects to drugs and...
We believe concreteness, direct manipulation and responsiveness in a visual programming language increase its usefulness. However, these characteristics present a challenge in generalizing programs for reuse, especially when concrete examples are used as one way of achieving concreteness. In this thesis, we present a technique to solve this problem by...
The following three essays explore the use of the directional output distance function (Chambers et al., 1996), an economic model originally developed to measure efficiency and productivity for multi-input and multi-output production processes, to assess performance for multi-attributed environmental processes.
The first essay illustrates the use of the directional output...
Article 1: Behavior of Epoxy Injected Diagonally Cracked Full-Scale CRC Deck-Girders.
Many cast-in place reinforced concrete deck-girder bridges (RCDG) remain in the national inventory and exhibit diagonal cracking. Epoxy injection has been in use for several decades as a method for sealing diagonal cracks, but the effects on girder behavior...
This is a bibliography of doctoral dissertations and masters' theses in forestry and related topics issued during the period from July 1981 through June 1990. The colleges and universities included are all accredited by the Society of American Foresters. The actual listings were supplied by the individual institutions. Topics covered...
To visualize vibrations in mechanical systems, e.g., machine tools, their movements are measured by means of suitable sensors. The signals from these sensors are processed and displayed as animated pictures on a computer screen. Accelerometers have been chosen as the most suitable sensors for this purpose. Their main advantages include...
In recent years, economists have started to move beyond calculating regulatory effects on a pollutant-by-pollutant basis since their interaction is important. In this study, we take up this issue. To allow for joint production of multiple pollutants and marketable output, we specify our technology using a directional distance function. This...
Samples of pre-rigor sternomandibularis muscle from ten
steers were pressurized at 15,000 psi for two min at 35°C to investigate
the effects of pressurization and incubation time on
the thermal stability of collagen. Immediately after pressurization,
pH of the treated samples (pH 5.71) was significantly lower
(P < 0.05) than...
Cheese is a fermented dairy product that is made from animal milk and is considered to be healthy food due to its available nutrients and potential probiotic characteristics. Since the microbes in the cheese matrix directly contribute to the quality and physicochemical properties of cheese, it is important to understand...
The major portion of Pacific whiting (PW) is commercialized in the form of frozen surimi. Alternative products for PW were investigated focusing on fresh surimi and texturized meat from PW mince. Fresh surimi is made without additives and kept refrigerated instead of frozen. Texturized meat is a meat-like product made...
In a comparison of the mammalian and fish immune systems many similarities and differences are found. While most of the differences occur in the acquired or lymphoid arm of immunity, the nonlymphoid immune systems of fish and mammals share many similarities. For instance, both animal groups use phagocytic neutrophils and...
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...
Data from three micronetworks with eddy correlation data and three additional micronetworks without eddy correlation data are analyzed to study the spatial variability of surface air temperature in complex terrain. A simple similarity relationship is constructed to relate the spatial variation of air temperature along the slope to the thermal...
Air pollution epidemiological studies suggest that elevated exposure to fine particulate matter (PM₂.₅) is associated with higher prevalence of term low birth weight (TLBW). Previous studies have generally assumed the exposure–response of PM₂.₅ on TLBW to be the same throughout a large geographical area. Health effects related to PM₂.₅ exposures,...
With the dominance of polyethylene as the building material for America's natural gas distribution system and a growing demand for natural gas, there exists and ever increasing need for improved methods of repairing damaged natural gas distribution pipe. This paper serves as the ground work for a multi-part study seeking...
The purpose of the dissertation was to gain an understanding of variables that influence the psychosocial health of Asian American college students. There is sufficient literature support indicating this population experience greater levels of intrapersonal and interpersonal distress compared to non-Asian peers, and the significant role of family in their...
In cross-cultural studies, respondents from specific cultures may have different product preferences and scale usage. Combining data from different cultures will result in departures from the basic assumptions of analysis of variance (ANOVA) and loss of power in testing capability of finding product and culture differences. However, the result of...
Published September 1990. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
The primary focus of this thesis is modifying the comprehensive depletion-mode model and extending its applicability to p-channel thin-film transistor (TFT) behavior and subthreshold (subpinchoff) operation. The comprehensive depletion-mode model accurately describes depletion-mode TFT behavior and establishes a set of equations, different from those obtained from square-law theory, which can...
Representing the most common flavonoid consumed in the American diet, the flavanols and their polymeric condensation products, the proanthocyanidins, are regarded as functional ingredients in various beverages, whole and processed foods, herbal remedies and supplements. Their presence in food affects food quality parameters including astringency, bitterness, sourness, sweetness, salivary viscosity,...
The rapid population growth in large urban cities has led to an unprecedented increase in both the number and the diversity of wireless devices and applications with varying quality of service requirements in terms of latency and data rates. LinkNYC is an example of an urban communication network infrastructure, which...
The Department of Nuclear Engineering at Oregon State University has performed a series of confirmatory tests for the United States Nuclear Regulatory Commission (USNRC). These tests have been conducted in the Advanced Plant Experiment (APEX) Facility which is a one quarter height scaled simulation of the Westinghouse Advanced Passive 600...
Membrane based heat pumps systems have attracted the attention of many research groups as a potentially more environmentally friendly alternative to vapor compression systems for space cooling. Several prototype systems have been developed, with reported claims of Energy Efficiency Ratios (EER) approaching 26. At present, no detailed analysis is publicly...
Billions of pounds of bisphenol A (BPA) are produced annually around the globe for the manufacture of numerous consumer products, including polycarbonate food and water containers, the protective resin linings of food cans, thermal printing paper, and dental fillings. BPA exposure during nervous system development has been associated with learning...
Duplex stainless steels are desirable for use in power generation systems because of their attractive combination of strength, corrosion
resistance and cost. However, thermal embrittlement at intermediate homologous temperatures of ~475 °C and below, limits upper service temperatures
for many applications. New lean grade duplex alloys have improved thermal stability...
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Hall, Corvallis, OR 97331, USA
bOak Ridge National Laboratory, PO Box 2008, Oak Ridge, TN 37831-6139
Operations research is concerned with the science of decision and uses mathematical models to aid in making these decisions. In this thesis operations research is used in connection with the lumber industry. The problem of concern has to do with a lumber company that is unable to supply the mill...
The most active phenolics in Quercus sideroxyla Humb. & Bonpl. residual bark were identified and evaluated following a chromatographic fractionation. Bark powder was defatted with hexane and crude extract (CE) was obtained by extraction with aqueous acetone (70%). A liquid partition with ethyl acetate was performed to produce an organic...
Seafood, defined here as marine and freshwater fish and shellfish, is recognized as a healthy food choice because it is a low-fat protein source that provides long-chain omega-3 fatty acids important for early development along with eye and heart health. However, seafood is also known to contain certain contaminants, such...
Ceramic injection molding (CIM) is a high volume, near net shaping process used to manufacture ceramic parts with complex features and shapes. In CIM design it is important to understand the molding behavior as a function of powder-polymer (feedstock) composition in order to achieve desired part dimensions and properties, at...
The classical chi-square goodness of fit test and the Neyman smooth tests are generalized for arbitrarily right-censored samples. The test statistics are shown to have limiting chi-square distributions under completely specified (simple) null hypotheses and random censorship. Limiting distributions of the generalized chi-square goodness of fit tests are also established...
The urinary excretion of 4-pyridoxic acid (PIC), the principle
end-product of vitamin B₆ metabolism found in human urine, was
measured in two populations in whom altered vitamin B₆ metabolism
has been reported: in women who use oral contraceptives and in
mental retardates with and without Down's syndrome.
In the first...
Phytochemicals from cruciferous vegetables, such as broccoli, contain a multitude of bioactive compounds that prevent and suppress cancer and promote optimal health. Some of the health promoting effects of cruciferous vegetables are attributed to a class of compounds known as isothiocyanates (ITCs), a potent nuclear factor erythroid 2–related factor 2...
Varieties of several kinds of vegetables were observed in conjunction with breeding programs. Unless otherwise noted, plots were 10–20 feet long, in 36-foot rows, and received about 450 lb/acre (about 10 lb/1,000 ft2) of 12-29-10-4 fertilizer banded prior to planting. Water was applied every 7–14 days as needed. The soil...
Indole-3-carbinol (I3C) is a naturally occurring plant alkaloid, found in significant concentrations in cruciferous vegetables such as broccoli and Brussels sprouts. I3C is an unstable compound that undergoes rapid oligomerization in an acidic environment to form higher order condensation products (I3C-ACPs), such as 3-3'-diindolylmethane (DIM). Both I3C and DIM are...
To determine how well DNA barcodes from the chloroplast region perform in forest dynamics plots
(FDPs) from global CTFS-ForestGEO network, we analyzed DNA barcoding sequences of 1277 plant
species from a wide phylogenetic range (3 FDPs in tropics, 5 in subtropics and 5 in temperate zone)
and compared the rates...
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,
USA. 7Flora Conservation Department, Kadoorie Farm and Botanic Garden, Lam Kam Road, Tai Po, N.T
Many real world problems have partial solutions or intermediary steps which can lead toward solving the problem. When assembling robotic teams to solve these problems, we have intuition about which intermediary steps are more useful than others. We examine methods to identify and apply our designer intuition onto tightly coupled...
The quorum sensing regulatory pathway has been extensively studied for its impact on the virulence of Pseudomonas aeruginosa, an opportunistic pathogen that causes acute and chronic infections in immunocompromised individuals such as those suffering from the genetic disorder cystic fibrosis. Part of the quorum sensing pathway that has not been...
Multispan skyline logging systems are cable systems designed to yard logs over steep terrain having a constant or convex slope. An intermediate skyline support is used to raise the skyline high enough to achieve ground clearance without overstressing the skyline. Certain improvements in performance can be realized by providing intermediate...
Home gardens produce the best yields when planted with vegetable varieties adapted to local growing conditions. These variety trials may assist market growers and home gardeners in choosing adapted varieties, based on qualities that are important to them (such as appearance, earliness, flavor, yield, and disease resistance).
Both nanoparticulate (nZnO and nTiO(2)) and organic chemical ultraviolet (UV) filters are active ingredients in sunscreen and protect against skin cancer, but limited research exists on the environmental effects of sunscreen release into aquatic systems. To examine the trade-offs of incorporating nano particles (NPs) into sunscreens over the past two...
Simultaneous speech translation (SimulST) is widely useful in many cross-lingual communication scenarios, including multinational conferences and international traveling. Since text-based simultaneous machine translation (SimulMT) has achieved great success in recent years. The conventional cascaded approach for SimulST uses a pipeline of streaming ASR followed by simultaneous MT but suffers from...
Yeast culture supplementation has been used to improve the health and performance of dairy cows for the last 25 years. To evaluate the effect of a Saccharomyces cerevisiae fermentation product (Diamond V Original XP™) on the health and production of peripartal Holstein cows, two research studies were conducted.
The first...
Metal-organic frameworks are promising novel materials for gas storage and separations because of their extremely high internal surface area and their modular structures based on metal nodes and organic linker molecules. Due to their modular design, it is possible to finely tune a structure for optimal storage of a specific...
Corn oil (CO) and Sterculic foetida oil (SFO) fed rats were
injected with [9, 10-methylene-¹⁴C]sterculic acid. Less than 1%
of the label was expired as carbon dioxide. The majority of the
label was excreted in the urine as short-chain dicarboxylic acids with
an intact cyclopropane ring. The major metabolites for...
The primary objective of this thesis is to develop a process for fabricating integrated circuits based on thin-film transistors (TFTs) using zinc tin oxide (ZTO) as the channel layer. ZTO, in contrast to indium- or gallium-based amorphous oxide semiconductors (AOS), is perceived to be a more commercially viable AOS choice...
Home gardens produce the best yields when planted with vegetable varieties adapted to local growing conditions. These variety trials may assist market growers and home gardeners in choosing adapted varieties, based on qualities that are important to them (such as appearance, earliness, flavor, yield, and disease resistance).
The subject of this PhD thesis is part of a research domain of great present interest in new semiconductor materials for photovoltaic and thermoelectric applications. This domain contains the elaboration and the study of both Cu-based chalcogenides bulk and thin-film samples, driven by materials design principles.
One of the most...
Penicillium chrysogenum is the main industrial producer of the β-lactam antibiotic penicillin, the most commonly used drug in the treatment of bacterial infections. Recently, a functional MAT1-1 locus encoding the α-box transcription factor MAT1-1-1 was discovered to control sexual development in P. chrysogenum. As only little was known from any organism...
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This thesis is concerned with the development of a unique
parallel sort-merge system suitable for implementation in VLSI.
Two new sorting subsystems, a high performance VLSI sorter and a
four-way merger, were also realized during the development
process. In addition, the analysis of several existing parallel sorting
architectures and algorithms...
Artificial collectives are useful for accomplishing tasks that require teamwork from multiple simple robots. Multiple robot and collective testbeds have been developed, yet none stay committed to leverage the local interactions, group size, and imperfect information assumptions that strengthen biological collectives. A review of the collective and multiple robot literature,...
Specialized or secondary metabolism is a collection of pathways and small molecules that, while beneficial to an organism, are not strictly necessary for survival. Plants use secondary metabolites to, among other things, attract pollinators, defend against biotic and abiotic stressors, and form symbioses. Natural products from plants have seen an...
Soils in household environments in low- and middle-income countries may play an important role in the persistence, proliferation, and transmission of Escherichia coli. Our goal was to investigate the risk factors for detection, survival, and growth of E. coli in soils collected from household plots. E. coli was enumerated in...
Optical wireless communication (OWC) is an alternative to radio frequency (RF)communication with a signi cantly larger and unregulated spectrum. In OWC systems, optical orthogonal frequency division multiplexing (O-OFDM) with intensity modulation and direct detection (IM/DD) is commonly used. There are two common signal structures in most OWC systems based on...
Chicken embryonic cells (CEC) cultured in vitro were able to
withstand the toxicity of DDT at concentrations below 10μg/ml culture
medium. When the DDT concentration exceeded the toxic level, CEC
appeared vacuolated and lost the spindle-like fibroblastic appearance,
Gas chromatographic analysis had shown that the uptake of DDT (3μg/
ml'culture...
We assess the global balance of calcite export through the water column and burial in sediments as it varies regionally. We first drive a comprehensive 1-D model for sediment calcite preservation with globally gridded field observations and satellite-based syntheses. We then reformulate this model into a simpler five-parameter box model,...
The isothiocyanate sulforaphane is a promising molecule for development as a therapeutic agent for patients with metastatic
prostate cancer. Sulforaphane induces apoptosis in advanced prostate cancer cells, slows disease progression in vivo and is well
tolerated at pharmacological doses. However, the underlying mechanism(s) responsible for cancer suppression remain to be...
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; 29: 255–265.
20 Esteve PO, Chin HG, Smallwood A, Feehery GR, Gangisetty O, Karpf AR et al. Direct
With the advent of tradable permit programs for bad outputs (e.g., SO₂ emissions); concerns arose over whether
the theoretical gains from trade would be realized. We will employ a methodology that calculates the potential
gains accruing to coal-fired electric power plants from implementing a tradable permit program. The magnitude
of...
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), estimated po-
tential cost savings from the tradable permit program of 43 percent.
However, they found that
Novelty detection plays an important role in machine learning and signal processing. This
project studies novelty detection in a new setting where the data object is represented as
a bag of instances and associated with multiple class labels, referred to as multi-instance
multi-label (MIML) learning. Contrary to the common assumption...
The intracellular mutualism between cnidarians and photosynthetic dinoflagellates (genus Symbiodinium) is responsible for the physical and trophic structure of diverse coral reef ecosystems. This relationship, based on nutrient exchange, allows for high productivity in tropical waters, which are generally nutrient-poor environments. Numerous environmental stressors currently threaten the health of corals,...
In the present study, the textural changes induced in Chinese
waterchestnuts by physical and chemical means were of prime concern.
After being subjected to chemical and heat treatments, the
corms were analyzed to relate the chemical changes with the physical
changes in the corms.
Chinese waterchestnuts were peeled, filled in...
An analytical model of the radiative contribution to the
total heat transfer between a large-particle (greater
than 1 mm) gas-fluidized bed and an immersed horizontal
tube is discussed. The model is applied to the case of a
bubbling bed and the emulsion phase contribution is obtained from a detailed analysis...
In recognition of the need to determine dynamic properties of naturally frozen materials, a research project was conducted to measure the dynamic properties (dynamic moduli and damping ratio) of naturally frozen wedge ice samples obtained from the Fairbanks, Alaska area. Cyclic triaxial and resonant column test systems were employed to...
Home gardens produce the best yields when planted with vegetable varieties adapted to local growing conditions. These variety trials may assist market growers and home gardeners in choosing adapted varieties, based on qualities
that are important to them (such as appearance, earliness, flavor, yield, and disease resistance).