This paper examines albedo perturbation and radiative forcing after a high-severity fire in a
mature forest in the Oregon Cascade Range. Correlations between postfire albedo and seedling, sapling,
and snag (standing dead tree) density were investigated across fire severity classes and seasons for years
4-15 after fire. Albedo perturbation was...
Full Text:
snag attrition on albedo and radiative forcing
Thomas L. O’Halloran1, Steven A. Acker2, VerenaM
This paper examines albedo perturbation and radiative forcing after a high-severity fire in a
mature forest in the Oregon Cascade Range. Correlations between postfire albedo and seedling, sapling,
and snag (standing dead tree) density were investigated across fire severity classes and seasons for years
4-15 after fire. Albedo perturbation was...
Full Text:
., Acker, S. A., Joerger, V. M., Kertis, J., & Law, B. E. (2014).
Postfire influences of snag attrition on
This paper examines albedo perturbation and radiative forcing after a high-severity fire in a
mature forest in the Oregon Cascade Range. Correlations between postfire albedo and seedling, sapling,
and snag (standing dead tree) density were investigated across fire severity classes and seasons for years
4-15 after fire. Albedo perturbation was...
Lactobacilli are microorganisms with many applications in the
fermented food and dairy industries. In addition to the actual
fermentation of food products, lactobacilli are involved in the
metabolic breakdown of lactose in dairy products, enabling a large
population of lactose-intolerant humans to ingest milk. Lactobacilli
are also used as health...
This research addresses the large-scale group fleet replacement problem with multiple vehicle types of multiple units, under budget and demand constraints. Past research in group fleet replacement is limited and has focused on one vehicle type, with multiples units and constraints. Many studies in fleet replacement have also dealt with...
The problem of resource planning has long been a topic of interest for operations managers in both production and service industries. Inputs such as raw materials, energy, and capital are limited resources; therefore, managers must make informed decisions regarding the use of these inputs. This thesis addresses the area of...
Poor aqueous solubility of a large number of newly discovered chemical entities is posing a significant challenge for the formulation industry and is delaying their drug development. The number of formulation techniques available to solubilize these poorly soluble molecules is very limited. In addition to that, traditional formulation methods involve...
Professional development is a critical part of education, especially in career and technical education (CTE). CTE programs have rapidly changing technological foundations, and while the CTE teachers' primary focus is to prepare students for entry-level positions in their occupational areas, CTE teachers are also required to embed academics into their...
The quorum sensing regulatory pathway has been extensively studied for its impact on the virulence of Pseudomonas aeruginosa, an opportunistic pathogen that causes acute and chronic infections in immunocompromised individuals such as those suffering from the genetic disorder cystic fibrosis. Part of the quorum sensing pathway that has not been...
This is a listing of both PhD and Master's· theses relating to the areas of forestry issued during the period from July 1976 to June 1981. The
list is arranged first by state, then by college or university within each state. Authors of theses are arranged alphabetically under each of...
University supervisors are critical to improvement in K-12 teaching and learning due to their roles in designing field experiences, managing relationships, mentoring, and supervising teacher candidates. The encouragement, support, and feedback shared by university supervisors in respect to the teaching performance of teacher candidates is especially powerful, and is a...
The southwest monsoon, which may be idealized as the northward movement of the intertropical convergence zone in the Indian Ocean associated with differential heating of land and ocean, brings a seasonal reversal of currents and winds in the Bay of Bengal and the Arabian Sea. Atmospheric convection from monsoon activity...
What are the most effective ways to improve the engineering curriculum? Improvements should result in increased student retention, undergraduates who are more industry-ready and graduates who are better prepared to be leaders. Current research suggests that the best predictor of persistence is a person’s self-efficacy. The focus of this thesis...
Doxorubicin is a widely used cancer therapeutic, but its effectiveness is limited by cardiotoxic side effects. Evidence suggests cardiotoxicity is due not to doxorubicin, but rather its metabolite, doxorubicinol. Identification of the enzymes responsible for doxorubicinol formation is important in developing strategies to prevent cardiotoxicity. In this study, the contributions...
Contamination of recreational and shellfish waters with fecal pollution is a major water quality issue with associated economic impacts and human health risks. Reliable fecal source identification and rapid, quantitative analyses are essential components of risk assessment. Enteric bacteria that are endemic to specific hosts have a potential role as...
America’s rural Hispanic population is growing at an unprecedented rate. Many of the Hispanic people that are settling in rural communities are immigrants or first generation Americans. If changes to current healthcare systems are required to accommodate the health needs of this growing, low-income rural population they have not been...
Animals aggregate and interact in nonuniform and nonrandom patterns, which lead to group level characteristics that have important evolutionary and ecological consequences. Network analysis provides a useful conceptual framework for linking animal interactions at all scales from dyads to communities, to populations and ecosystems. Despite exciting theoretical and applied advances...
Virginia Woolf was a self-proclaimed atheist, yet her fictional and personal writing
reveal her ecstatic consciousness. Characters in Woolf s novels experience ecstasy, and
her letters and diaries support the theory that she herself had experienced ecstatic
consciousness. Major figures in the philosophy of religion assert that ecstatic
consciousness is...
The transcriptional promoter sequences for the Rhizobium meliloti
nitrogen fixation genes nifA and nifB were cloned to a β-galactosidase gene
fusion plasmid vector and transferred by homologous recombination to a
specialized transducing phage. The promoter fusions were then transduced
to a recombination deficient strain of Escherichia coli as single-copy
lysogens...
The purpose of this study was to describe the perceptions of the first year experience of teaching secondary agriculture and to explore the relationships between these perceptions, the characteristics of beginning agriculture teachers, and the types of support provided to beginning teachers. An additional focus of the study was to...
The purpose of this study was to assess reactions to and
opinions about color and color performance by women ages 45 to 54
years. Hypotheses were developed to test relationships and differences
between both perception and acceptance of color change and:
1) the three primary colors, 2) the two methods...
The abilities of plant biologists to characterize the genetic basis of physiological traits are limited by their abilities to obtain quantitative data representing precise details of trait variation and mainly to collect this data on a high-throughput scale at low cost. Deep learning-based methods have demonstrated unprecedented potential to automate...
Toxin production by cyanobacterial harmful algal blooms (cyanoHABs) in freshwater systems has lasting ecological and human impacts. Nutrients, light availability, hydrology, and microbial community composition impact the frequency and intensity of toxic cyanoHABs. Climate change will exacerbate toxic cyanoHABs, making real time and predictive monitoring a vital tool for managing...
Nitrosomonas europaea carries out the first step in the biological nitrogen removal process in wastewater treatment by oxidizing ammonia to nitrite. It has been shown to be sensitive to a wide range of contaminants. The antibiotic oxytetracycline and the heavy metals chromium and silver have been found in wastewater influent....
Following a history of tensions surrounding concubinage in medieval and early modern Spain, the Church sought greater control of religious life, particularly over the sacrament of marriage, via the Holy Office of the Inquisition. The Church exercised its strengthened restrictions and prosecuted these relationships with more frequency, as did civil...
The high productivity of Eastern Boundary Upwelling Ecosystems (EBUE), some of the most productive ecosystems in the globe, is attributed to the nutrient rich waters brought up through upwelling. Climate change scenarios for coastal upwelling systems, predict an intensification of coastal upwelling winds. Associated with intensification in upwelling are biogeochemical...
State-of-the-art personal robots need to perform complex manipulation tasks to be viable in complex scenarios. However, many of these robots, like the PR2, use manipulators with high degrees of freedom. High degrees of freedom are desirable from a functionality standpoint, but make the learning task more difficult by adding a...
Increased global competition is forcing organizations to increase their use of group decision making today. Computerized group decision support aids (CGDSAs) are being developed to improve the efficiency of these groups and to improve decision quality. Even though the use of CGDSAs has increased, very little research has been done...
Blackberry (Rubus sp.) fruit are a good source of phenolic compounds and anthocyanins, and are consumed in fresh and processed forms. Though organic products become more popular, limited information is available about how different organic production methods affect the post-harvest quality of blackberry fruit. The objective of this project was...
In this dissertation, a series of studies in the field of terahertz (THz) science are presented, specifically using nonlinear THz spectroscopy. We exploit huge field enhancement and subwavelength confinement in plasmonic structures. There are three distinct projects which will be discussed: nonlinear THz spectroscopy using plasmonic induced transparency (PIT), THz-triggered...
Autonomous agents that sense, decide, act, and coordinate effectively with each other are critical in many real-world domains such as autonomous driving, search and rescue missions, air traffic management, and underwater or deep space exploration. All such domains share a key difficulty: though high-level mission goals are clear to system...
Metagenomics has revealed that the marine microbial biosphere is immensely more diverse than originally considered, and is an almost untapped reservoir for the potential discovery of microbial natural products. Despite numerous advances in culturing, biosynthetic engineering and genomic-based screening efforts to uncover much of this diversity in relatively accessible environments,...
Data from nuclear ribosomal internal transcribed spacer regions (nrITS) and chloroplast DNA (cpDNA) have failed to resolve phylogenetic relationships in Pinus. To provide greater interspecific resolution, five low-copy nuclear genes were developed from mapped conifer anchor loci. Four genes were sequenced from species representing all Pinus subsections. Individual loci do...
Markov Decision Processes (MDPs) are the de-facto formalism for studying sequential decision making problems with uncertainty, ranging from classical problems such as inventory control and path planning, to more complex problems such as reservoir control under rainfall uncertainty and emergency response optimization for fire and medical emergencies. Most prior research...
This thesis uses both feminist and new historic theories to argue that the women's romance novels The Last September (1929) by Elizabeth Bowen and The Country Girl's Trilogy (1960, 1962, 1964) by Edna O'Brien are tragic bildungsroman that subvert and challenge the Irish patriarchal marriage expectations of their respective time...
Many home users nowadays use various smart devices to improve the efficiency and convenience of their home environments. Trigger-action platforms such as “If-This-Then-That” (IFTTT) enable end users to connect different smart devices and services using simple apps to control these devices and automate the tasks (e.g., if the camera detects...