The objectives of this project were to investigate the critical factors impacting the physicochemical and antibacterial properties of β-chitosan based films derived from jumbo squid (Dosidicus gigas) pens, and to evaluate the feasibility of improving water solubility of β-chitosan through Maillard reaction. The studies examined the effect of molecular weight...
Oregon Fishermen in Ocean Observing Research (OrFIOOR) is a cooperative research program between ocean scientists and fishermen in the Pacific Northwest. Dungeness crab fishermen attach sensor packages (temperature and dissolved oxygen) to crab pots. The pots serve as platforms of opportunity for ocean observing. This study examines three principle questions...
Chemical compounds produced by organisms, or natural products, are excellent sources of inspiration for anticancer pharmaceutical discovery (Rodrigues et al., 2016). Microtubule targeting agents are a specific class of compounds, often discovered from natural sources, that have been developed as clinically successful anticancer therapies (Steinmetz and Prota, 2018). In the...
The death of a child is a traumatic family event. This qualitative study examined the experiences of parents and grandparents in 10 families who had lost a baby to SIDS, stillbirth, or birth defects. Key questions focused on support given and received, meanings attributed to the loss, continuing bonds, and...
This thesis is divided into three chapters. For all chapters, the experiments described deal with the responses of all or a subset
of 72 wind-pollinated Douglas-fir families from 36 different locations in southwestern Oregon. Wind-pollinated seed was collected from each of two trees at each of the 36 locations. The...
Over the past decade, regional ocean observing systems have been established along nearly the entirety of the U.S. coastlines, forming a major component of the national Integrated Ocean Observing System (100S). Observations from these systems provide information to support decision making by governmental agencies and commercial enterprises, such as shipping...
With many ecosystems now supporting multiple nonnative species from different trophic levels, it can be challenging to disentangle the net effects of invaders within a community context. Here, we combined wetland surveys with a mesocosm experiment to examine the individual and combined effects of nonnative fish predators and nonnative bullfrogs...
Plant invasion and restoration outcomes
are largely driven by the timing and magnitude of seed
dispersal, and by the performance of dispersed species
in an environment. Because seed dispersal controls
recruitment of newly arriving species and facilitates
safe site occupation, assembly will differ depending
on seed dispersal processes and variable...
Plant invasion and restoration outcomes
are largely driven by the timing and magnitude of seed
dispersal, and by the performance of dispersed species
in an environment. Because seed dispersal controls
recruitment of newly arriving species and facilitates
safe site occupation, assembly will differ depending
on seed dispersal processes and variable...