Gall-associated phytopathogens have unique evolutionary histories that haveshaped both their modes of infection and genomic structures. Pathogenicity of the gall-associated plant pathogens of the Rhodococcus, Agrobacterium, and Rathayibactergenera is mediated by horizontally acquired virulence loci. The relative ease of gainand loss of the virulence loci has confounded accurate characterization of...
Small mountainous watersheds are disproportionate sources of land-derived particulate organic matter (POM) to long-term sinks like lake bottoms and the ocean. As such, these ecosystems are an essential component of the global carbon cycle. The burial of POM in lacustrine and marine sediments contributes to the drawdown of atmospheric CO2...
In the realms of psychology and sociology two new theoretical models have arisen to describe the forces influencing altruistic human behavior. The first Empathy-Altruism Hypothesis (EAH), by C.D. Batson. The second is the Conceptual Continuum of Altruism (CCA), by K.R. Monroe. Both models have proven to be highly useful in...
The focus of this research concentrates on enhancement
of the LOGSIM mechanized log harvesting system
simulator. Enhancement of software focuses on overall
improvement of the user environment as well as improvement
of the performance and capabilities of the simulation
package.
An enhanced version of the front-end interface
program is developed...
I conducted a multi-scale evaluation of aspen – bird relationships in the northern ungulate winter range of the northern Yellowstone ecosystem during June 2001-03. Questions addressed were: (1) Does bird diversity increase with conifer presence in aspen stands? (2) Given known habitat selection cues, are migrating birds passively intercepted by...
Background. Total knee arthroplasty, or replacement, is a common, generally successful, and expensive procedure. Tools to predict outcomes following orthopedic procedures are abundant, yet no commonly used assessment accounts for an individual’s propensity to engage in adaptive health behavior. The 13-item Patient Activation Measure (PAM) questionnaire is a tool that...
Quantifying labile phosphorus (P) pools in biosolids is needed to manage biosolids for both agronomic and environmental purposes. Phosphorus indices originated in an effort to protect surface water quality from-non-point-agricultural P inputs. The objectives of this research were to: (1) evaluate soil test components of the western Oregon P index...
PURPOSE: To compare glenohumeral joint position sense (JPS), concentric internal (IR) and external rotation (ER) strength, functional ability, and level of satisfaction in patients who underwent three types of glenohumeral capsulorrhaphy with age-matched controls. RESEARCH DESIGN: Four 4x2 and two 4x3 ANOVAs were used to identify differences in JPS and...
The Willamette Valley of Oregon has high rates of winter precipitation that cause
leaching losses of residual fertilizer nitrogen (N) as nitrate (NO₃). Cover crops may have
potential to mitigate N loss. Shallow groundwater was sampled for 11 years from plots
planted in summer vegetables with and without winter cover...
Full Text:
AN ABSTRACT OF THE THESIS OF
Jeff Feaga for the degree of