Striga, a genus of obligate parasitic weeds in the family Orobanchaceae, has been
identified as the most important biological factor limiting agricultural productivity in sub-Saharan Africa. Germination of Striga seeds is triggered by strigolactone root exudates
from host plants. Strigolactones also induce hyphal branching in arbuscular mycorrhizal
(AM) fungi, which...
Ammonia (NH₃) volatilization and loss from nitrogen (N) fertilizer in agriculture negatively impacts crops, farm profitability, human health and surrounding ecosystems where it is deposited. A significant source of NH₃ volatilization occurs from surface application of urea on sandy soils with low pH buffering capacity such as those in the...
Cognitive self-regulation and the behavioral manifestations of cognitive self-regulation are important aspects of school readiness, yet less is known about the variation in measurement modalities within children. In this dissertation, two studies examined the makeup, antecedents, and consequents of constellations of cognitive self-regulation (CSR) measures around the transition to formal...
Sustainable management of planted forests requires maintenance of soil function
to promote 1) root growth; 2) storage and cycling of water and nutrients; 3) optimal gas
exchange; and 4) biological activity. Soil quality measurements can be used to monitor
short- and long-term changes in these soil functions, allowing managers to...
Given the current state of our oceans, the Pew Oceans Commission (1993) has strongly recommended that increased efforts be made towards ocean literacy. Informal education and outreach programs like the Whale Watching Spoken Here program are important contributors to life-long learning. However, there is little research looking at how these...
Behavioral studies have observed facial recognition bypass attentional limitations when performed with non-facial recognition tasks (e.g., a digit task). Awh et al. (2004) proposed this was due to multi-channel processing, where non-facial objects utilize a feature-based channel leaving the configural-based channel available for facial processing. We tested this hypothesis using...
In order to increase life expectancy without long periods of morbidity, physical activity should be a component in every older adult's lifestyle. It is proven that regular physical activity can improve health and quality of life for older adults; however, the older population is one of the most sedentary populations...
Bunk to 5K is a program designed to encourage and support new and experienced runners in custody at Coffee Creek Correctional Facility (CCCF). CCCF is the only women’s prison in Oregon, housing around 1,200 women at any given time, at all levels of custody (ODOC, 2020). The non-profit which runs...
The purpose of this paper was to consider whether the integration of
complementary and alternative medicine within coordinated care organizations would be
possible and beneficial. Per capita health expenditures in the Unites States are greater
than any other nation’s in the world. However, many complain that the organization and
distribution...
Background: A particular health inequity that has drawn national attention is obesity in persons with disabilities (CDC, 2011). Estimates suggest that as many as 80% of adults with mild to moderate intellectual disability (ID) are overweight or obese (Stanish & Draheim, 2005). Despite the benefits of being active (e.g. controlling...
Full Text:
AN ABSTRACT OF THE DISSERTATION OF
Alicia Mae Dixon