The growth and food consumption of juvenile coho salmon [Oncorhynchus kisutch (Walbaum)] exposed to natural and elevated fluctuating temperatures were studied in the laboratory with wild fish
collected from a salmonid rearing stream. Control temperatures were similar to the temperature regime of a natural stream and the elevated temperatures were...
This thesis is the first third of a coming of age novel called i. In this selection the central character, Bea Bouvier, prepares to see her estranged mother on a cruise ship to the Bahamas. She hopes her parents will decide to reunite as a family, though it becomes increasingly...
The purpose of this study is to use an integrated biocultural perspective to examine the decision-making processes of young survivors as they navigate breast cancer treatment and reproductive health care options. This retrospective study utilizes a mixed-methods approach that integrates quantitative survey data (Phase I) with interview (Phase II) and...
This dissertation aims to provide a comprehensive portrayal of doula care in the lives of pregnant and parenting adolescent mothers. The purpose of this research was to examine the relationships between psychosocial stress, social support, institutionalized constraints, and their impacts on health and well-being among adolescent mothers in the Northwestern...
Because of competition from abroad, the U. S. Steel
industry has begun research into the processes involved
with electric arc steelmaking. This paper addresses the
mathematical background of these furnaces and the electro-magneto-
hydrodynamical effects used to melt the large
quantities of steel. A classical approach to the
derivation of...
The extensive and expanding use of radioactive materials
(RAM) in the production of power, industry, the healing
arts, and various branches of research has inevitably
resulted in a sizable increase of hazardous material
transportation in the state of Oregon. The location of the
Hanford facility just north of the Oregon...
The hydrophobicity of soils of the Deschutes National Forest was
studied. The soils are Cindery Typic Cryorthents, formed in cinders
and ash from Mt. Mazama. Ponderosa pine is the dominant overstory
vegetation. Of particular interest was the effect of prescribed
burning on hydrophobicity. Fire has been shown to cause a...
Nonlocal theories of continuum mechanics are used to model the
fracture behavior of particleboard in tension perpendicular to the plane
of the board. Classical theories of fracture are examined in comparison
to a nonlocal crack solution which has removed the stress singularity
at the crack tip. With the removal of...
INTRODUCTION:
Data on the safety of waterbirth in the United States are lacking.
METHODS:
We used data from the Midwives Alliance of North America Statistics Project, birth years 2004 to 2009. We compared outcomes of neonates born underwater waterbirth (n = 6534), neonates not born underwater nonwaterbirth (n = 10,290),...
Science inquiry is central to the science education reform efforts that began in the early 1990's. It is both a topic of instruction and a process to be experienced. Student engagement in the process of scientific inquiry was the focus of this study. The process of scientific inquiry can be...
Wave dispersion and fracture are phenomena that involve. mechanisms triggered at the scale of a material's internal structure. Experiments were performed with a candidate material to judge the hypothesis that wave dispersion measurements can be used to nondestructively predict fracture strength. Wood-based particleboard was chosen as the candidate material because...
Gaseous transport through soil in the presence of soil
microorganisms has been investigated. More recently, modeling of
gaseous transport in the unsaturated zone has been investigated.
However, the problem of mathematical model of oxygen and carbon
dioxide transport through soil, as affected by the climatic
conditions, the transport of soil...
This thesis is a work of literary non-fiction. It
is divided into six sections. The first, "A Sense of
Place," and the last, "Pulling a Geographical," are
collage essays which establish and then reiterate major
themes in the work: movement, work, geography,
climate, people, and education--some curricular, some
not. The...
The main focus of this study was to determine how community college
administrators used certain personality traits (cues) in judging the
success potential of female and male administrative applicants.
The following hypotheses were tested:
1. There will be no significant difference in the weights
attached to the following cues when...
This literature seeks to broadly examine historical literature and information pertaining to developmental education in the community colleges and its relationship with the college success. Contextually, the review will examine factors that affect student perception to academic success while being required to participate in remedial course work. Although issues surrounding...
:
________________________________________________________________________
Larry D. Roper
This literature review seeks to broadly examine historical literature and
Freeze/thaw cycles are numerous in agricultural soils of the Pacific Northwest. Potential loss of soil by erosion is high whenever a soil thaws from the surface creating a saturated soil overlying an impermeable frozen layer. Field studies were conducted to investigate the effect of surface residue on soil freezing. Residue...
This study explored how students navigate the technological landscape of a public, land-grant institution. Through online surveys and semi-structured, one-on-one interviews, the study operated through an anticipatory/participatory lens to research with the intent of understanding students' experiences with technology at a research institution. Using this methodology and Triandis and Triandis'...
:
_____________________________________________________________________
Larry D. Roper
This study explored how students navigate the technological landscape of a
At present the adsorption kinetic of ions by soil particles is considered to be a surface reaction. When the transport of solutes in soils is described using the one-dimensional flow equation, it becomes a serious problem that lateral diffusion of ions from the bulk solution towards the soil surfaces is...
This study investigated how a minority population of Latino/a immigrant children attending a middle school in the Pacific Northwest made sense of engaging with school and school mathematics. A cross disciplinary theoretical framework was used to examine how individual student motivation is impacted by the social context in which the...
This mixed methods qualitative thesis examined the relationships between co-mentors in the Faculty Student Mentor Program at Oregon State University through the reported experiences/perceptions of peer mentors. The researcher gathered information for this study utilizing data from two focus groups, a survey of peer mentors, and a review of relevant...
The contemporary student veteran population is growing rapidly as service members who served in the Afghanistan and Iraq conflicts take advantage of the Post 9/11 Veteran Educational Assistance Act of 2008 to receive educational benefits to attend college (Cook & Kim, 2009). However, student veterans entering college today have a...
Sod-seeding techniques offer graziers a convenient way to introduce superior grass cultivars into underproductive permanent pastures. Production loss and erosion are minimized. In conjunction with improved grazing management and fertilization, renovation can significantly improve yield and quality of pastures. Existent vegetation must be suppressed prior to introducing new cultivars. This...
This case study of leadership in crisis at Meadow View
Community College (fictitious name) was undertaken to add to
the practical and theoretical knowledge and understanding of
presidential leadership issues that actually occur in
American community colleges. The college under study
one of nearly one-third of the community colleges in...
Over the past twenty years, the national three-year graduation rate for community college students has ranged from 44% to roughly 31% in 2013 (NCES, 2013). As a way to address such low graduation rates, colleges have implemented a myriad of services and programs (i.e., tutoring, mentoring, etc.). Another intervention is...
Community colleges today are experiencing monumental shifts in their operating
environments. Some of these changes are known, but many of them are not. They
include shifts in curriculum, funding, and societal expectation to name a few. Through
the constructs of high quality work environment and organizational fluidity theory, this
research...
Post-secondary education institutions across the United States are increasingly allocating resources to promote international education exchange programs as a pedagogical praxis to develop students into global citizens. Underlying such notions of global citizenship is the assumption that students will also develop a stronger post-national or cosmopolitan identity as a result...
The purpose of this study was to determine if there were common
factors influencing student decisions to terminate course work at the
College of San Mateo, San Mateo, California.
The following six null hypotheses were tested:
1. There will be no significant difference in responses
among those enrolled in transfer...
The purpose of this study was to determine the importance and
the frequency of use of certain communication skills to job-entrylevel
mechanics as assessed by employers, educators at various levels,
and entry-level industrial mechanics. The study was conducted in
Lane County, Oregon. Communication skills investigated for importance
and for frequency...
An eigenvector analysis of the velocity-temperature correlation
matrix is applied to clear-air turbulence measured by aircraft in the
Bora. The eigenvectors are identified with the main eddies of the
turbulence. This study attempts to infer the three-dimensional
structure of these eddies. The results are compared with turbulent
structures in the...
The purpose of this study was to determine the concerns of past participants of the Summer Agriculture Institute regarding the use of agriculture as a context for teaching and to determine how they implement curriculum integration. The study used the Concerns-Based Adoption Model as a theoretical framework, which resulted in...
The use of efficient basis functions to model and represent flows with
internal sharp velocity gradients, such as shocks or eddy microfronts, are
investigated. This is achieved by analysing artificial data, observed atmospheric
turbulence data and by the use of a Burgers' equation based spectral
model. The concept of an...
The effect of a static quadrupole interaction on the 133-482 Kev
gamma-gamma angular correlation in Ta-181 has been studied by the
delayed coincidence method. Using a source of Hf-181 in polycrystalline
hafnium metal, the anisotropy was measured as a function of
time between the formation and decay of the 482...
Several horizontal flight segments from SESAME and
ALPEX are studied using structure functions and specral
analysis methods. Theoretical analysis of the relative
errors in structure function and correlation function in
the presence of large scale wave activity is presented. The
effect of stratification and shear on the -5/3 inertial
subrange...
Gaseous diffusion equations which describe the diffusion of
oxygen and carbon dioxide through soil have been studied by several
investigators. However, these efforts seldom considered gaseous
diffusion through soil together with the effects of soil environmental
factors such as soil temperature and soil water content on sink or
source strength....
The purpose of this study was to use computer analysis of soil and rainfall data to predict the possible occurrence of soil erosion in Central Tunisia. Analysis was done with the program OR-NATURE (M.Ungs et al, 1985) . Central Tunisia was subdivided into northern, central, and southern subzones. Data about...
Petroleum mulch applied on the soil surface over a row of
planted seeds promotes a more rapid and a more uniform germination
of seeds, enhances elongation of seedlings and in some cases increases
the yield of the crop. The beneficial effects of petroleum
mulch have usually been attributed to increased...
The stability of steady-state solutions of the equations governing two-dimensional,
homogeneous, incompressible fluid flow are analyzed in the context
of shear-flow in a channel. Both the linear and nonlinear theories are
reviewed and compared. In proving nonlinear stability of an equilibrium,
emphasis is placed on using the stability algorithm developed...
Sudden changes occur where the mean values associated with two adjacent non-overlapping
windows of data are anomalously different, and the transition between the
window means occurs over a scale that is small relative to the scale of the windows.
Positions of sudden changes can be economically retrieved. The sudden change...
The continuum theory provides a framework in which the growth
of a plant root as a dynamic process involving interactions among
transport of water and solute, cell division, and the subsequent cell
elongation can be described. A plant root is modeled as a one-dimensional,
multi-phase, mathematical continuum. The network of...
Atmospheric boundary layers become stably stratified at night over land when the surface becomes colder than the air layer above. In stable nocturnal boundary layers (SNBL), turbulence becomes weak and intermittent, terrain-induced phenomena such as drainage currents or gravity-waves emerge and the surface heterogeneity is enhanced. Because of their complexity...
Forest soils with low bulk densities are often considered less
susceptible to compaction than soils with higher bulk densities. The
objective of this study was to determine if soil strength controlled the
compression of soils with low bulk density. Four soils were selected
for this evaluation. Three of these were...
No-till pasture renovation can increase the quality and forage yield of underproductive pastures. Decreased erosion, lower costs, and less lost grazing time are advantages of no-till renovation compared to conventional renovation. Unwanted vegetation is first controlled with herbicides to decrease competition for introduced orchardgrass. Two field trials were conducted using...