Forested lands of western Oregon provide aquatic habitat for many fish and riparian dependent species, including a wide variety of salmon species. Current policies set riparian protections using fixed buffers on streams for federal and private lands based on stream type or size. These buffers can create a series of...
Ecosystem management has become an increasingly mainstream paradigm for natural
resource management. Nowhere is this more evident than on the public and private forestland
of the Pacific Northwest. While ecosystem management has become a widely
accepted principle of resource management, substantial questions remain about its
implementation. A case in point...
Prostate cancer is responsible for a substantial loss of life and burden of suffering among adult males. Evidence suggests that the risk of morbidity and mortality from prostate cancer can be reduced through specific screening and dietary practices (MCI, 2002; Ries et al., 2002). Further evidence suggests that screening can...
The continued development of organic semiconductor materials relies on an understanding of the relationship between optoelectronic properties, molecular structure, and molecular interaction. Several detailed studies of electronic properties in functionalized polyacene materials are presented. A computational model which allows the extraction of charge generation and transport properties from experimental data...
Background. Many studies addressing the reasons why minority students fail in higher education are based on what is defined as a deficit model. A deficit model documents that a significant number of minority students fail because their culture is distinct from that of the majority population. Numerous minority students do...
Intra- and interplant movement and dispersal of the predator mites Neoseiulus californicus (McGregor) and Neoseiulus fallacis (Garman) were studied on both lima bean (Phaseolus lunatus L.) and apple (Malus pumila Miller) branch plant systems that were seeded with excess numbers of the spider mite Tetranychus urticae Koch. Individuals of either...
Specialist and generalist phytoseiid mites are widely used for biological
control of spider mites. Understanding dispersal attributes of these mites is
important to implementing more stable, cost-efficient integrated pest management.
In this regard, we studied dispersal of phytoseiid mites from a local ambulatory
phase of movement within a prey patch...
Fiber reinforced polymers have gained considerable attention due to their wide range of applications, leading to significative concerns for end-of-life recyclability and disposal. Natural fibers and recycled carbon fibers, coupled with thermoplastic matrices can provide a sustainable and environmentally friendly alternative to traditional materials.
This study focused on experimental materials...
Victoria blight, caused by fungus Cochliobolus victoriae, is a disease originally described on oats and recapitulated on Arabidopsis. Victoria blight is used as a model plant disease that conforms to an inverse gene-for-gene interaction. C. victoriae virulence is dependent upon its production of victorin, a host-specific toxin that induces programmed...
Since High Temperature Gas-cooled Reactors are being considered as most promising design of upcoming IV Gen reactors, thus key research areas were identified to address safety aspects of this design. Number of simulations and experiments need to be conducted in this field. In this study thermal-hydraulics aspects of coolant flow...
Intimate partner violence against women (IPVAW) and early marriage of female children are significant public health challenges in Nigeria. Previous research has shown a strong association between the two. Furthermore, both issues have severe implications for socioeconomic progress and present barriers to the realization of the Sustainable Development Goals (SDGs)....
This thesis presents an experimental study of radial porosity in a manually filled cylindrical container with glass spheres. The symmetric distribution of bead diameter allowed for normalization of container properties and porosity models. The aspect ratio of the container was approximately 3.9, with tube-to-particle-diameter ratio λ ≈ 24.6 and height-to-particle-diameter...
Diffusion bonding cycle times can be a large cost factor in the production of metal microchannel devices. The challenge is to significantly minimize this cost by reducing the bonding cycle time through rapid and uniform heating and cooling within the bonding process. Heating rates in diffusion bonding processes are typically...
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Brian K. Paul
Diffusion bonding cycle times can be a large cost factor in the production of
Recent efforts show that microchannel technologies have much to offer the field of nanomanufacturing: the structuring of matter on the order of one billionth of a meter. During the synthesis of nanomaterials, microchannel reactors take advantage of large surface-to-volume ratios to accelerate heat and mass transport. This accelerated transport allows...
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Brian K. Paul
Recent efforts show that microchannel technologies have much to offer the
The purpose of this multi-case study was to explore the stories and lived experiences of Native American police chiefs who have faced the systemic conflicts and challenges created between Native American tribal policing and an opposing U.S. legal system. It sought to understand the essence of tribal police chiefs’ experiences...
We present a model that describes nanosecond (ns) time-scale photocurrent dynamics in functionalized anthradithiophene (ADT) films and ADT-based donor-acceptor (D/A) composites. By fitting numerically simulated photocurrents to experimental data, we quantify contributions of multiple pathways of charge carrier photogeneration to the photocurrent, as well as extract parameters that characterize charge...