Saccharina sessilis, lettuce kelp, is a macroalgae that contributes to the primary production in the intertidal zone off of the Oregon Coast. Macroalgae can serve as a bioindicator of increased nutrient input, water quality, and shifts in the intertidal environment. Competition for light exists between macroalgae species and with other...
Kinesins are intracellular motor proteins that transform chemical energy into mechanical energy through ATP hydrolysis to move along microtubules. Kinesin roles can vary among transportation, regulation, and spindle alignment within most cells. Many kinesin have been found to move towards the plus end of microtubules
at a steady velocity. For...
The motor protein dynein is responsible for cellular processes such as axonal transport and cell division by delivering vital information along the microtubule track. A failed delivery can cause severe damage to the cell’s functionality and lead to neurological diseases. Despite dynein’s rich history in cellular research, the mechanism of...
We construct a Monte Carlo simulation in Python to calculate optical flashes at 5x10¹⁴ Hz peaking at 6x10³¹ erg s⁻¹Hz⁻¹St⁻¹ due to synchrotron radiation from the reverse shock of a gamma-ray burst’s jet. While analytical solutions to this problem exist, they rely on sweeping simplifications of what is necessarily a...
Monte Carlo methods are used to explore vapor-liquid phase transitions. However, current models are computationally expensive when identifying these phase transitions. Traditionally, Monte Carlo simulations are run across a range of temperatures at a fixed number of atoms/molecules. The Number Monte Carlo method (NMC), our proposed Monte Carlo method, runs...
Dynein is a motor protein which transports cargo along tracks inside the cell. Like related motor proteins kinesin and myosin, dynein uses cellular energy to take steps with its two foot domains. Unlike kinesin or myosin, dynein’s stepping pattern is highly varied: it can take steps between zero and 60nm...
Dynein is a motor protein which transports cargo along tracks inside the cell. Like related motor proteins kinesin and myosin, dynein uses cellular energy to take steps with its two foot domains. Unlike kinesin or myosin, dynein’s stepping pattern is highly varied: it can take steps between zero and 60nm...
Three key tectonic domains of western North America, the Walker Lane Fault Zone (WLFZ), northwestern Basin and Range (NWBR), and Cascade arc, intersect in south-central Oregon. Bounded by Cascade arc volcanoes in the west, the Klamath Graben is traditionally regarded as the western-most extent of the Basin and Range extensional...
Abstract
Haptoglobin is an acute phase protein that is elevated in response to tissue damage and infections in dairy cows. The objectives of this study were to evaluate whether serum haptoglobin concentrations in the first week after calving can indicate disease status and severity, and whether haptoglobin concentrations are elevated...
The daily preparation of meals is an important end
extremely interesting home problem, a fact which is not
wholly appreciated by the average house keeper. The
importance of the provision of food. is wall. shown in the
words of Mrs. Ellen H. Richards, "The prosperity of a
nation depends upon...
The purpose of this project is to verify scattering mechanisms in semiconductors by measuring transport properties and producing data that reflects existing research. The Hall effect is utilized to measure the resistivity, mobility and charge carrier concentration of the semiconductors: indium tin oxide (ITO), p-type silicon, and n-type silicon. By...
Gaps in the forest canopy allow more light to reach the understory. Since
light in the understory is heterogeneous, understanding the physiological
processes in gaps and non-gaps will improve estimates of carbon balance. This
research outlines an approach for defining carbon balance for Salal (Gaultheria
shallon Pursh.), a dominant understory...
"Salads are not a food of nutriment but are healthful because of mineral salts, which contain cooling and crispness properties--variety they give the diet.
And salads should be served at every luncheon and dinner, the meat salad being served at luncheon or supper, while the lighter in dietetic value with...
As a nation salad is a dish we do not sufficiently
appreciate; while the French perhaps surpass all other countries
in the number and variety of their salads. Their quick ingenuity
seems to enable them to turn almost everything in nature
that is edible into a tempting salad.
Am expert...
Certain uncooked plants, fruits, nuts, cooked vegetables
and meats seasoned with condiments and dresses
with oils constitute what is known as salads.
The salad plant contains no appreciable amount
of nutriment, yet are, owing to their crispness and
cooling properties, an indispensable portion of the
ideal dinner, and are aids...
The North American forest sector is well-known for its lack of diversity. In most operations, middle-aged white males are the majority of employees. Given this setting, we investigate the experiences of female executives working in North American forest sector firms. We take a qualitative approach with in-person and Skype interviews...
Upon entering a residential drug and alcohol treatment, typically clients are directed to complete a risk assessment form. Risk assessment forms are anonymous, self-reported questionnaires that inquire about demographics, health, sexual behaviors, as well as drug and alcohol use. The YES house is a youth treatment facility in Corvallis Oregon...
Motivated by the Navier-Stokes equations, which are a set of unsolved equations related to fluid motion in R^3, we explored the incompressibility condition and the Neumann boundary problem. After exploring, we noticed that using iterated Riesz transforms of the boundary data could be used to get information about the velocity...
Throughout Cane, a colon is representative of both characters’ thought and dialogue in a quasidrama technique that perpetuates the idea of a staged performance (Foley 233). Through this form, Cane encapsulates the non-authentic expression that African Americans were subjected to by a means of acting and/or pretending in fear of...
The idea for this research projected stemmed from research I conducted during my Economics 439: Public Policy course. This research project examines the idea of Voter Identification Laws and Regulations and their effect on voter turnout and participation in the United States of America. I previously found that economists studied...
A research project looking into the feasibility and impact of adding a mentorship program to improve the academic and professional success of international students in the Oregon State University College of Business.
Semiconducting materials are of immense importance due to their presence in almost all modern devices. It is possible that the surface physics of semiconductors could be used to control the nanoscale topography and properties of these materials, ultimately creating new options for device fabrication. This could result in profound implications...
In the field of religious studies, it is common to separate meta theories about the concept of religion itself into two equally problematic categories that both make claims about the truth of religious doctrine. This is done by attempting to define religion by historically excluding non-Christian religious traditions from the...
The acquired ability of Salmonella to express varying morphotypes when placed in nutrient-limited conditions is hypothesized to predict increased resistance to food processing interventions. Two of the morphotypes expressed by Salmonella are Red, Dry and Rough (RDAR) and Smooth and White (SAW). Increased resistance is predicted for the RDAR morphotype...
Infestations of container nursery beds by Phytophthora spp. can be persistent and costly. One method of disinfestation that does not require the use of chemicals is soil solarization, which captures energy from the sun to heat soil and thermally inactivate target pathogens. In laboratory temperature gradient experiments, I investigated the...
Relationships among soil pH, redox potential, and ferrous iron content data obtained from
various field and lab methods were determined, with the following 4 objectives:
1.) Compare pH values obtained in the field to those obtained in the lab
2.) Evaluate different methods to measure pH in field
3.) Determine...
Hypoxia is a naturally occurring phenomenon that happens seasonally off the Oregon coast. As a consequence, there has been a great deal of research focused around analyzing the strength and duration of the hypoxic event during the summer season. This paper, however, takes an innovative approach by looking at the...
Children’s self-regulation and academic achievement are important factors in predicting school readiness and later academic outcomes. This study examined relationships between parental marital status and residential mobility on children’s academic achievement and self-regulation in kindergarten. Using a diverse sample of 131 kindergarten children, results indicated that the number of family...
Seasonal reducing conditions play an important role in the cycling of nutrients and soil pore water chemical constituents in the Willamette Valley. Long periods of soil saturation lead microorganisms utilizing organic matter as their carbon source to find alternative electron acceptors other than oxygen. Once oxygen has been depleted microorganisms...
Bio-oil from hydrothermal liquefaction (HTL) represents a promising fuel source due to large higher heating values and compatibility with current energy infrastructure. For bio-oil production to become commercially viable, novel methods of co-product recycling must be explored.
The aims of this study were to culture Chlorella vulgaris, a common HTL...
"There are at present four common methods of con
verting the alternating current into direct current.
These are in order of use, the motor generator set,
the rotary converter, mercury vapor rectifier and the
Murphy rectifier. A short description of these and
connections for the last two will be given."--p.2
Air pollution and pollution patterns have become a hot topic over the last several years. Many studies have been launched due to the increasing concern with air quality. As urban areas grow, atmospheric heavy metal pollution grows proportionally. Reducing atmospheric heavy metal pollution, and consequent health issues, requires monitoring and...
Cascadia is the physiographic region defined by the active tectonics and attendant geo-hazards of the Cascadia Subduction Zone. In contrast to many other coastal environments in the U.S., geo-hazards along the Cascadia coast are dominated by a tectonic context on the Pacific rim “ring of fire.” Washington, Oregon, and California...
The prey consumption rates of two estuarine crab species were compared: the introduced Carcinus maenas and the native Cancer magister. Similar sized crabs of each species were placed into individual perforated plastic boxes and then placed in a seawater table. Each crab was offered 50 Mytilus trossulus mussels (15-25mm) per...
Radio astronomy allows observations of unique objects and phenomena relating to the electric and magnetic fields of celestial objects. Radio astronomy can be preformed at any time of day and is less beholden to atmospheric conditions than optical astronomy. A radio telescope designed to receive radiation at 1.421 GHz, the...
The present study examined whether semantic activation for words occurs by encoding whole word shape in addition to individual letters. We used LEET stimuli, where digits were used as parts of words, such as “R34DING” instead of “READING”. Previous studies have suggested that LEET stimuli are encoded in a letter-like...
The present study examined whether semantic activation for words occurs by encoding whole word shape in addition to individual letters. We used LEET stimuli, where digits were used as parts of words, such as “R34DING” instead of “READING”. Previous studies have suggested that LEET stimuli are encoded in a letter-like...
Fat Studies (FS) is a new interdisciplinary field that addresses oppression based on body weight, shape, and size as it intersects with oppression based on other areas of difference. As such, FS incorporates a weight-neutral approach to health, Health At Every Size® (HAES), that decries weight bias, promotes body self-acceptance...
Rapid and accurate analytical methods are needed to assess the impacts of agricultural chemicals on soil and water resources. Solid-phase extraction (SPE) was evaluated as an alternative method to conventional liquid-liquid extraction for the quantitative analysis of the herbicide DCPA and its metabolites in ground waters. Strong anion exchange (SAX)...
Agricultural areas can be inhospitable to the attraction and maintenance of beneficial insects like natural enemies and pollinators and this can result in a decrease in the ecosystem services of pollination and pest control that these insects supply. If habitat can be created and maintained on-farm, an increase in the...
The Laser Gravitational Wave Observatory, or LIGO, is built to observe gravitational waves as they propagate through space. Advanced LIGO is extremely sensitive
to movements of the test mass as small as 10⁻²¹ m/√Hz , which allows many signals other
than gravitational waves to be detected by the system. Pressure...
The presence of nitrates and nitrites in food is associated with an increased risk of gastrointestinal cancer and, in infants, methemoglobinemia. Nitrites are produced endogenously through the oxidation of nitric oxide and through a reduction of nitrate by commensal bacteria in the mouth and gastrointestinal tract. Despite the physiologic roles...
1. To determine whether plastics are being ingested by black rockfish at three sites along the Oregon coast
2. To determine if there is a significant difference in rates of plastic ingestion between marine reserve locations and Newport location.
3. To quantify the extent of plastic ingestion and to identify...
2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) is a potent immunosuppressant and a prototypic ligand for the aryl hydrocarbon receptor (AhR). In a graft versus host (GvH) response, treatment with TCDD suppresses a cytotoxic T-lymphocyte (CTL) response by Day 10, concurrent with a T-regulatory (Treg) like phenotype in the donor CD4+ T-cells, observed on Day...
The transition from high school (HS) to college can prove to be a
difficult one for many HS students. In becoming acclimated
within the academic and social realm of a college experience the
individual is offered an opportunity to develop many lifestyle
habits such as diet, sleep and most notably...
The ionotropic glutamate receptors are ligand-gated ion channels that mediate the majority of excitatory neurotransmission in the brain. The three classes of ionotropic glutamate receptors are alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA), N-methyl-D-aspartate (NMDA), and kainite. These three classes have unique subunits. NMDA receptors play important roles in development, forms of synaptic plasticity,...
A flipped classroom provides students with course content in the form of videos, readings, and/or simulations that they complete during the time traditionally used for homework assignments while in-class time is devoted to hands-on group learning activities. Project BoxSand is gathering quantitative data on how students in a flipped classroom,...
Much interest has recently been shown in using fecal samples to monitor
hormone concentrations in free-roaming animal populations. This process is noninvasive
and, therefore, provides easy sample collection and assures no stress-related,
physiological responses that might alter the hormonal data. Concerns have been
expressed, however, that the hormone concentrations detected...