The goal of this study is to provide a better understanding of new product adoption by single family homebuilders. Information from this study will be useful to producers of new and existing engineered wood products in targeting their market development efforts. Homebuilders are studied with the goal of segmenting them...
The tachinid species Ormia Dominicana, Ormia lineifrons, and Sitophaga aurigera were observed to aggregate atop 2 towers in central Florida shortly after sunset. The activity period for each species was brief, and that of 0. dominicana was temporally separated from that of S. aurigera. Aggregations occasionally exceeded 100 individuals of...
The combination of increased training tempo due to military base closures and the reduction in military budgets have placed a severe burden on the infrastructure at many military installations and emphasized the need for an integrated facility management support system. This research involved linking existing facility, environmental, and operational data...
In this study I explore the relationship between firm value and conforming tax avoidance (tax avoidance that does not create a book-tax difference). Tax avoidance provides firms more cash, creating value for the firm. However, conforming tax avoidance has costs, such as lower book income, and these costs potentially lower...
Early adulthood is a time of transition when large segments of the population embrace new roles and show decreases in behaviors and problems thought to underlie suicide risk. Still, other segments show emergent or worsening psychopathology per-haps exacerbated by age-related disconnection from prior relational and institutional supports. Suicide prevention efforts...
Phylogenetic relationships of the Antiperyphanes Complex of the genus Bembidion are inferred using DNA
sequences from seven genes (two nuclear ribosomal, four nuclear protein coding, and one mitochondrial
protein coding). Redefined subgenera within the complex are each well-supported as monophyletic. Most
striking was the discovery that a small set of...
Seventy-two species of Blennocampinae in 21 genera and six tribes
are known from the Nearctic region. The adults and known larvae of
all species and genera are keyed, described and illistrated. A
definition of the subfamily, a review of previous work, a table of
host-plant associations, and a discussion of...
Several crops grown in the Willamette valley of western Oregon
respond to applications of boron fertilizers. The acid, highly-leached
soils of this area are naturally low in plant-available B. Application
of B to the soil annually or at less frequent intervals is currently
recommended, but the fate of applied B...
In this work, a method for solving the differential form of the radiative transfer equation was implemented into an existing three-dimensional thermal-hydraulic computer program known as TEMPEST. The method used was the P-l approximation, where the angular distribution of the radiation intensity is represented by a truncated series of spherical...
Several physical and chemical characteristics of sediments have
been proposed for use in tiered testing plans to predict the
presence of trace metals in estuarine sediments. Correlations often
exist, but the mere presence of a trace metal does not indicate
toxicity; a more thorough approach is needed.
Available information on...
John Brown Gordon was committed to the mission of national reconciliation.
He knew that the South would have to embrace the North to repair the devastation of
the Civil War. Driven by dedication to public service after the war, he worked
through his positions in governmental offices to help the...
The spawning habitat associated with fall chinook salmon (Oncorhynchus
tshawytscha) redd clusters was investigated in the Hanford Reach of the Columbia River.
A conceptual spawning habitat model is proposed that describes how geomorphic
features of river channels create hydraulic processes, including hyporheic flows, that
influence where salmon spawn in unconstrained...
The thesis examines the applicability of a two-dimensional flow acceleration model to describe a terrain-induced flow perturbation as measured at Yaquina Head on the central Oregon coast. The geometry of Yaquina Head together with the upstream wind values were used in estimating hilltop winds. These estimates compare well with the...
Steep bathymetric anomalies in the beach profile, such as offshore borrow pits, submerged breakwaters, and nearshore canyons can significantly transform the wave climate through the effects of refraction, diffraction, and reflection. When located in the nearshore region the modified wave climate can also substantially change the location of breaking and...
A time and energy budget was constructed for a population of
dippers (Cinclus Mexicanus) in the Cascade Range of Oregon during
winter. A total of 12,202 point observations of activity were made
from nine observation blinds from 19 November 1973 to 10 February
1974. Approximately 50 percent of all observations...
The vegetation in Yosemite National Park changed during the 20th century and may change in the 21st century in response to climate change. Vegetation surveys made during the 1930s and the 1990s provide benchmark records separated by 60 years. This study uses the MC1 dynamic global vegetation model to forecast...
My objectives were to investigate the correlation of height and diameter growth in young Douglas-fir (Pseudotsuga menziesii) plantations with stand density, and to determine the effects of stand density on the canopy boundary layer conductance (g[subscript]ac) and microclimate characteristics of young Douglas-fir plantations. I measured annual height (h) and diameter...
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...