There is a growing consensus that anthropogenic warming will impact soil organic matter (SOM). Globally, soil contains 2-3 times more carbon (C) than plants, and like plants, temperature induced change of SOM could have significant climate repercussions. Although, the majority of warming experiments have increased day and night temperatures equally,...
The purpose of this study was to test, by means of
a controlled classroom experiment, the effectiveness of
an experimental method involving the introduction of
regular dictation of unpracticed material beginning with
Lesson 25 in the Gregg Shorthand Manual Simplified,
Second Edition, by Gregg, Leslie, and Zoubek.
The study involved...
There is reasonable expectation that climate warming will accelerate the hydrologic cycle, resulting in greater evapotranspiration (ET) and reduced groundwater recharge (R) (or stream flow). Though qualitatively intuitive, quantifying these potential shifts in water budget partitioning is a contemporary challenge in hydrology, because the linkage between ET and R is...
The soil microbiome drives nutrient transformation in forest soils and plays a critical role in the carbon (C) cycle of these ecosystems. Wildfires cause significant disturbance to ecosystems and are known to alter C sources available to microbes in forest soils. Summer wildfires in the Pacific Northwest are of growing...
The potential impact of projected climate warming on the terrestrial hydrologic cycle is
uncertain. This problem has evaded experimentalists due to the overwhelming challenge of measuring the
entire water budget and introducing experimental warming treatments in open environmental systems. We
present new data from a mesocosm experiment that examined the...
Full Text:
Hall,
Oregon State University, Corvallis, OR 97331
JillianW. Gregg, Terrestrial Ecosystems
The potential impact of projected climate warming on the terrestrial hydrologic cycle is
uncertain. This problem has evaded experimentalists due to the overwhelming challenge of measuring the
entire water budget and introducing experimental warming treatments in open environmental systems. We
present new data from a mesocosm experiment that examined the...
Full Text:
evapotranspiration and
groundwater recharge
Pangle, L. A., J. W. Gregg, and J. J. McDonnell (2014), Rainfall
The potential impact of projected climate warming on the terrestrial hydrologic cycle is
uncertain. This problem has evaded experimentalists due to the overwhelming challenge of measuring the
entire water budget and introducing experimental warming treatments in open environmental systems. We
present new data from a mesocosm experiment that examined the...
The potential impact of projected climate warming on the terrestrial hydrologic cycle is
uncertain. This problem has evaded experimentalists due to the overwhelming challenge of measuring the
entire water budget and introducing experimental warming treatments in open environmental systems. We
present new data from a mesocosm experiment that examined the...
Understanding how the interactions and feedbacks between plant function, climate, and soils ultimately affects the terrestrial water balance and subsurface flow processes is major challenge in scientific hydrology. This dissertation summarizes the findings of a manipulative climate warming experiment, an observational field study that utilized stable-isotope tracers, and associated modeling...
The life history traits of polygamous, non-territorial shorebirds like the Red Phalarope (Phalaropus fulicarius) can make it challenging to assess their population status. There are two general approaches to statistical inference used to understand shorebird (Order: Charadriiformes) population change: design-based inference, which implements an a-priori sampling scheme with known selection...
Increased globalization has greatly increased the ability for species to travel outside of their native range and reach all parts of the world. While most species do not have an impact in new habitats, a small percentage are able to establish a new population and spread, causing ecological damage and...
Respiratory Syncytial Virus (RSV) is a major concern in infants, the elderly, and immunocompromised individuals. There is currently no vaccine available. While it causes a significant number of hospitalizations and complications, RSV is a thermo labile virus and not very stable in the environment. This matter complicates the creation of...
Full Text:
Syncytial Virus
By
Jillian Redmond
An Undergraduate Thesis Submitted to
Oregon State
As GIS becomes more prominent in academic classrooms at all levels of education, the subject of geography and its related disciplines can be approached with a geospatial technology perspective, using new tools and lesson plans. The implementation of Google Earth in classrooms is just one example of this. Research was...
This thesis examines the recent history of the teaching of argument and its implications in the face of new writing standards being implemented in K-12 classrooms under the Common Core State Standards. The new educational policies will shift the focus of writing instruction onto argument writing as part of students'...
Regression testing is a common and necessary task carried out by software practitioners to validate the quality of evolving software systems. Unfortunately, regression testing is often an expensive, time-consuming process, particularly when applied to large software systems. Consequently, practitioners may wish to prioritize the test cases in their regression test...
Recent scientific studies show strong correlations between oral and systemic disease, creating a crucial need for increased collaboration between the medical and dental professions. Interdisciplinary collaboration between medical and dental providers is emerging as a critical component to effective patient care. The role of the dental hygienist in interdisciplinary collaboration...
This paper investigates the nature of disputants'
stories within the context of divorce mediation. Tapes
and transcripts of actual mediation sessions from three
different sources are scrutinized, utilizing a modified
form of conversation analysis known as ethnography of
speaking. Several themes emerge from this analysis of
disputants' stories: the functions...
Recent scientific studies show that framing climate change as a health issue rather than an environmental issue were more persuasive with American audience members (Maibach et. al., 2010; Maibach et. al. 2014). Also in 2014, a survey on respiratory healthcare providers and found that a large percentage believed that climate...
Graphics resource allocation has often existed on the periphery of graphics research, taking second place to faster or more realistic algorithms for global illumination and modeling. Most research has focused on generating sets of images that best match the effects one might see in photographs. While this approach works well...
Successful software systems evolve over their lifetimes through the cumulative changes made by software maintainers. As software evolves, the problems resulting from software change worsen, exacerbated by increased system size and complexity, lack of program understanding, amount of effort required to make changes, and number of personnel involved. Experience shows...
Analysis of programs forms an important activity in the field of software engineering. It is necessary to help understand the code, which facilitates comprehensive testing, maintenance and optimization of code. Aristotle is a tool for analyzing programs written in C. We have designed a system on similar lines for Java...
This research addresses the relationship between television
programming and body image. It specifically investigates what the Music
Television network's (MTV) dance show, "The Grind," communicates
about female body image. Two studies were conducted. Study one used
seven coders from a western United States high school to record female
body images...
Like other scientific fields, computer science is in great need of experimentation to support, improve, disprove and even establish theories. One area in which experimental results are highly desired involves regression testing, which is performed on modified software to provide confidence that the software behaves correctly and that modifications have...
Test case prioritization techniques schedule test cases for regression testing in an order that increases their ability to meet some performance goal. One performance goal, rate of fault detection, measures how quickly faults are detected within the testing process. The APFD metric had been proposed for measuring the rate of...
Communication plays an important role in the life
of a couple. This study seeks to determine the nature of
couple communication. This study compares and contrasts
the differences and similarities in communication between
childless couples and parenting couples. The material
for this study comes from interviewing ten married
couples along...
Mary Collins composed the award-winning book American Idle in 2009 after her recovery from an awful bicycle accident. This bicycle accident inspired Mary Collins to take a trip of discovery. Mary Collins visited historical locations to see changes in peoples’ physical activity over time. Collins interviewed individuals whose professions varied...
The Oregon Employment Division (ES) and Job Training
Partnership Act (JTPA) funded agencies frequently provide
employment and training services to the same populations,
resulting in increased demands to coordinate the two systems
efforts and avoid duplications of service.
This study examined coordination between local ES
offices and JTPA agencies in...
Under the Paris Agreement, parties submitted documents outlining their commitments to climate change mitigation and adaptation, called Nationally Determined Contributions (NDCs), which are set to be updated to increase ambition by 2020. Costa Rica and México are known for their significant national actions on climate change, so comparing these two...
Prioritization techniques are used to schedule test cases to execute in a specific order to maximize some objective function. There are a variety of possible objective functions, such as a function that measures how quickly faults can be detected within the testing process, or a function that measures how fast...
Researchers have hypothesized that if we could estimate the probability that a fault in a code component will a cause a failure, we could use this estimate to improve the fault-detection effectiveness of code-coverage-based testing. If this hypothesis could be supported, it would motivate further research in this area and...
The Islamic State of Iraq and Syria (ISIS) is a formidable international force operating and perpetuating religious, military, and violent agendas. In 2014, ISIS established a worldwide Caliphate governing religious authority across Middle Eastern territories. ISIS operations are grandiose and large scale, longevity and survival are predicated on recruitment. One...
Regression testing is an expensive testing process used to validate changes made to previously tested software. Different regression testing techniques can have different impacts on the cost-effectiveness of testing. This cost-effectiveness can also vary with different characteristics of test suites. One such characteristic, test suite granularity, reflects the way in...
The field of gender bias indicates that teachers are a significant
source of gender-role socialization for students. This study focuses on
post hoc recollections of college students' perceptions of gender bias
exhibited by their high school teachers. Specifically, this study asks
students to define sex discrimination, as well as describe...
Spreadsheet languages are widely used by end users for many different purposes. Previous research shows that spreadsheets often contain faults. To help end users test their spreadsheets, in previous research, a testing methodology for spreadsheets has been developed. Th.is methodology is supported by an automatic test case generation (ATCG) methodology....
Software maintenance is an expensive part of the software lifecycle: estimates put its cost at up to two-thirds of the entire cost of software. Regression testing, which tests software after it has been modified to help assess and increase its reliability, is responsible for a large part of this cost....
Component based software technologies are viewed as essential for creating the software systems of the future. However the use of externally provided components has serious drawbacks for a wide range of software engineering activities often because of a lack of information about the components. One such drawback involves validation of...
Visual programming languages employ visual representation to make programming easier and make programs more reliable and more accessible. Visual program testing becomes increasingly important as more and more visual programming languages and visual programming environments come into real use. In this work, we focus on one important class of visual...
This research addresses the functional characteristics of a single
organization. It specifically investigates one of the largest festival
organizations in the United States, The Portland Rose Festival Association
(PRFA). In this case, three groups within the PRFA are its foundation: the
paid staff, the executive committee, and the volunteer directors....
Previous work has developed the What You See Is What You Test (WYSIWYT) methodology for testing spreadsheets. This methodology has been shown to help end users test, debug, and modify spreadsheets. To date, however, this system has provided no support for creating, reusing, and managing test cases, a process that...
Test case generation in software testing is a process of developing a set of test data that satisfies a particular test adequacy criterion. It is desirable to automate this process since doing it manually is not only technically difficult but also tedious and time-consuming. Although there has been considerable research...
The climate in which communication occurs is a result of
how employees in an organization perceive and react to such
factors as rewards, support, trust, openness, decision making,
and leadership. The purpose of this case study is to identify
and describe communication climate factors in a health care
organization which...
Greater sage-grouse (Centrocercus urophasianus) populations declined range wide during the past 50 years. Grouse populations were 2-3 times larger than the current population as recently as the early 1970's. In addition to habitat loss and fragmentation, declines were attributed habitat degradation that caused reduced productivity. Because chick survival remains the...
I investigate the feasibility of a micron-sized biosensor designed to measure neural activity. The circuitry of the biosensor is composed of graphene, some photodiodes, and a light-emitting diode. Many of these biosensors would be injected into a subject’s brain, and when powered by near-infrared light, they would glow in response...
The object of this study was to analyze the application of linear
programming techniques to ration formulation for feedlot lambs and
steers.
Three rations for feeder lambs were designed to study the application of linear programming techniques under varying ration constraints.
Rations studied were as follows:
iso-caloric rations with
three...
The equations of motion of an elastic cable suspended in a
viscous medium from two arbitrary points are derived. These are
then linearized for the undamped, inextensible case, and it is found
that the equations describing the in-plane motion of the cable are
then independent of the equation describing the...