The Alvord Valley Known Geothermal Resources Area (KGRA) , located east of the Steens Mountain-Pueblo Mountains fault block in southeastern Oregon, is within the northern Basin and Range province. This investigation focuses on three thermal areas in the Alvord Basin: Borax Lake and the hot springs north of Borax Lake, Alvord Hot Springs and Mickey Springs. Mickey Springs and the springs north of Borax Lake are boiling at the surface (94 and 95° C, respectively). Inflow temperatures to Borax Lake, measured at a depth of 30 m, are greater than 100° C. Surface temperatures for Alvord Hot Springs and a flowing well northeast of Borax Lake are 78 and 59° C, respectively. Thermal fluids issue from Quaternary lacustrine and alluvial deposits. While silica sinter deposits are present at all three thermal areas, sinter is not presently being deposited. Minor calcite is being deposited at the springs north of Borax Lake. The springs discharge from N to NEstriking, high-angle, basin-bounding faults along the base of Steens Mountain and Mickey Mountain and NE-striking intrabasinal faults south of Alvord Lake. The thermal waters are dilute sodium-bicarbonate waters with significant amounts of sulfate and chloride. Conservative element plots (B, F, and Li vs. Cl) indicate good correlation between Cl and the other conservative elements. These correlations could result from mixing of thermal water with a dilute cold water or fluid evolution due to increased fluid-rock interaction, evaporation, and steam loss due to boiling. The small variations in chloride concentrations of thermal fluids during the sampling period argues against mixing of thermal fluids with cold water. The geothermal system is a hot-water rather than a vapordominated system. The ỎD content of thermal fluids is similar to the ỎD content of local cold water wells, springs, basinal pore fluids at a depth of 4 to 5 m, and perennial streams. Similarities in ỎD values indicate recharge for geothermal fluids is precipitation from the Steens Mountain fault block. The Ỏ18 content of thermal fluids is shifted 2 to 3°/oo to the right of the world meteoric water line indicating fluid-rock interaction at elevated temperatures in the reservoir. Tritium contents indicate relatively long residence times and/or low-velocity circulation of meteoric water through basement rocks. Values range from 0 to 0.25 T.U. The application of two end-member models, which calculate fluid residence times, generate a minimum of 57 years and a maximum of greater than 10,000 years. Estimated reservoir temperatures based on cation and silica geothermometry are between 170 and 200°C. Oxygensulfate isotope geothermometer estimates indicate reservoir temperatures between 198 and 207' C for Borax Lake and Alvord Hot Springs. Mickey Springs and a flowing well northeast of Borax Lake yield temperature estimates of 168 and 150° C, respectively. These values indicate partial reequilibration of the isotopic system. The Ỏ13C contents of carbon dioxide and methane of gas discharges from the thermal areas are similar to geothermal fluids from other sites. The Ỏ13C of methane indicate "normal" geothermal methane for Alvord Hot Springs and Mickey Springs (-27.8 and -27.6, respectively). The Ỏ13C of CH4 for springs north of Borax Lake (-33.6) indicates a small amount of thermogenic methane may be contributed by thermal alteration of organics in basinal sediments. The Ỏ13C contents for C02 at Alvord Hot Springs and Borax Lake are within the range expected for atmospheric, fumarolic, or mantle derived C02 (-6.5 and -6.6, respectively). The Ỏ13C content of C02 from Mickey Springs is isotopically lighter than gas released from fumaroles or the mantle (-9.4). N2/Ar ratios for Mickey Springs and Borax Lake gases (39.2 and 40.8, respectively) indicate interaction with airsaturated ground water during flow through the the zone of aeration. Helium is enriched relative to Ar and N2 in gas discharges from Alvord Hot Springs, indicating longer fluid residence times and/or increased crustal interaction at high temperatures. Ratios of B/Cl indicate the fluid reservoir is hosted in volcanic rocks. The Li/Cs ratios for the Borax Lake thermal area are consistent with a reservoir located in rhyoli tic rocks. The 228Ra/226Ra content of Borax Lake thermal fluids (1.14 ± 0.13 dpm/kg) indicates interaction with volcanic rocks for Borax Lake. The 228Ra/226Ra content of thermal fluids from Alvord Hot Springs and Mickey Springs (0.38~0.02 and 0.17 ~ 0.09) are lower than those expected for volcanic rocks and may indicate local uranium accumulation in the reservoir or zones of upflow. The 87Sr / 86Sr values for thermal waters and stratigraphic uni ts indicate the fluid reservoir is located in volcanic rocks beneath Steens Basalt. Equilibration of fluids in these units argues for thermal water circulation depths of 2 to 2.5 km in the Borax Lake thermal area, greater than 3 km in the Alvord Hot Springs area and 1 to 2 km in the Mickey Springs area. Data presented in this study do not preclude a single large deep reservoir system discharging at these three thermal areas in the Alvord basin. Differences in the chemical and isotopic composition of discharge from the three thermal areas are produced during upf low from the reservoir. During upflow, thermal waters follow a complex pathway of vertical and lateral fractures which includes short residence times in shallow reservoirs before reaching the surface. Boiling, mixing with condensate, oxidation, mixing with 1-3% tritium-bearing, near-surface cold water, relative differences in flow rate and volume, and slow cooling without vigorous boiling are processes that modify fluid composition during upflow from the deep geothermal reservoir.

This ethnography explores the underground art world in Portland, Oregon by showing how a Portland area artist collective, Oregon Painting Society, navigates their art world. Participant observation, in-depth interviews, and a short latent content analysis triangulate data to show the features and values of the underground art world. Using Becker's concept of art worlds, I show how artists working outside of a traditional art career in a commercial gallery system do their work by exploring how Portland's art world is structured and sustained. I find that group work, cooperation, and resource sharing in a vibrant neighborhood based social network enables artists to substitute resources usually provided by gallery representation and sustain their ability to make artwork without financial support. This is a network that rejects the competitive structure of the commercial system and runs more smoothly the more artists participate in it. I also explore the reasons for Portland's particular ability to support this kind of environment, citing geographic proximity to other art cities, DIY cultural roots, neighborhood structure, affordable city amenities, and a creative class population.

Many migratory shorebirds rely on estuaries as stop-over sites to refuel during migration, and the loss of stop-over sites is a primary threat to shorebird populations on the West Coast of the United States (e.g. Calidris alpina pacifica, C. mauri). Conservation and research has focused on the largest of these sites; however, smaller estuaries also host thousands of migratory shorebirds. Furthermore, the reasons for site selection are largely unknown. Estuarine inter-tidal microhabitats are non-uniform and both abiotic and biotic factors may serve as predictors of whether an abundance of shorebirds will use a site. I investigated shorebird site selection on broad and fine scales within Oregon estuaries. To identify factors that relate to shorebird abundance on large spatial scales, I compiled shorebird abundance data from estuaries throughout the Pacific Northwest as well as data on site quality factors. To investigate site selection on a finer scale I measured shorebird abundance, habitat characteristics, and food resources―invertebrates and a newly considered source, biofilm―within two Oregon estuaries during the fall migration period. Finally, I examined whether channels are preferentially used by foraging Calidrid shorebirds by conducting observations during the spring migration. I investigated whether channels may be superior foraging habitat possibly because prey are more abundant, are found at shallower depths, or because sediments are more penetrable (increasing the opportunity for shorebird probing) by taking infauna cores and measuring force required to probe in the sediment at channel and open mudflat sites. Among estuaries, shorebird densities in spring were best predicted by estuary size, as opposed to the amount of any one habitat. During fall migration, the amount of grassland in the surrounding watershed was also a good predictor, pointing to the probable importance of roost sites as well as feeding grounds. The amount of infauna also related to the density of shorebirds using a site. Within estuaries, shorebird distribution in the inter-tidal region was not generally predicted by prey abundance. Channels were used preferentially by shorebirds, and infauna abundance along channels was greater than in the surrounding mudflats. The more penetrable sediments of the channel also made it easier for shorebirds to probe and capture prey. Identification of these large-scale and fine-scale factors that influence site quality for migratory shorebirds will assist land and wildlife managers' efforts to protect these species.

At least four glacial stands occurred since 6.5 ka B.P. based on moraines located on the eastern flanks of the Three Sisters Volcanoes and the northern flanks of Broken Top Mountain in the Central Oregon Cascades. The youngest of these advances was the Little Ice Age (LIA) glaciation, which reached its maximum advance 150-200 yrs. B.P. and is defined by the large sharp crested and unvegetated moraines adjacent to the modern glaciers. In isolated locations less than 100 m downslope from these moraines, a second set of sparsely vegetated lateral moraines marks the Late-Neoglacial stand of the glaciers between 2.1 ± 0.4 and 7.7 ka B.P, A third set of Early-Neoglacial end moraines is 300-700 meters downslope of the modern glacier termini, and postdates 7.7 ka B.P. From SST temperature data (Barron et al., 2003) and a speleothem record (Vacco, 2003), we infer that this advance occurred between 4.5 and 6.5 ka B.P. Finally, the Fountonnor stand is marked by moraines 500-900 meters downslope of the modern glacier termini, and we infer these are latest Pleistocene or early Holocene. Modem equilibrium line altitudes (ELAs) at the Three Sisters and Broken Top are approximately 2500 - 2600 m. During the LIA, the ELAs were 40 - 180 m lower, requiring cooler mean summer temperatures by 0.7 - 1.0°C and winter snowfall to increase by 10 - 60 cm water equivalent. The average Early Neoglacial and Fountonnor ELAs were 130 - 300 m and 290 - 320 m lower than modem glaciers, respectively, requiring air temperatures to be 0.7 - 1.6°C and 1.5 - 1.7°C cooler during the summer and winter snowfall to be 40 - 100 cm water equivalent and 90 - 100 cm water equivalent greater.

Recently federal policy aimed at halting decline in urban neighborhoods has included a major focus on housing rehabilitation efforts. In the case of Portland, Oregon, federally funded improvement loans for owner-occupied housing units resulted in the rehabilitation of almost four thousand homes from 1975 until 1978, over twice the number of homes rehabilitated in any other city in the nation. The purpose of the present study was to examine and analyze the city's rehabilitation loan program in two ways. First, the loan process itself was examined to ascertain whether there were any deficiencies in the loan program which should be corrected. The second, and primary, focal point was the specific neighborhoods where rehabilitation loans have been funneled. The impact of the loan programs on the neighborhoods as communicated by their residents determined how successful Portland has been in dealing with urban decline through its loan programs. Prior to gathering primary data on the neighborhoods, several secondary sources of information were used. The Portland Development Commission's in-house evaluations of the loan process demonstrated strong recipient support for the program. A survey of loan recipient files showed loans going to low income families with few assets. Although half of the loans went to married couples, a substantial number of loans went to divorced women and widows. The majority of rehabilitated homes were over fifty years old, and their median assessed value was $16,500. Secondary data was also used to look at outside perceptions of changes taking place in loan neighborhoods. Real estate trends and mortgage and home improvement loan activities suggested that the impact of the government loan programs has not yet been substantial enough to trigger changes in private policies related to the neighborhoods. Primary data for the study came from a random sample survey of four hundred persons in four Portland neighborhoods. Two neighborhoods, one in the north section of the city and one in southeast, where loans have been given, were paired with two control neighborhoods where loans were not available. The survey instrument used contained 72 variables chosen as capable of determining what the impact of the loan program has been on loan recipients, their neighbors, and their neighborhoods. Four outcomes could have stemmed from the loan programs. The first possibility was that people living in the neighborhoods where Housing and Community Development loans have been granted should feel more positive about their neighborhood than those not living in HCD neighborhoods. A second consequence could have been that HCD neighborhoods are upgrading socio-economically. Third, HCD neighborhood residents simply may not have perceived improvements in their neighborhoods, or fourth, even if they perceive improvements, they do not show significantly higher levels of satisfaction with their neighborhoods than holds true for respondents living in the control neighborhoods. The data indicated that although residents in HCD neighborhoods do perceive improvements taking place in their neighborhoods, their levels of satisfaction with their neighborhoods are not significantly higher than satisfaction levels in non-loan neighborhoods. Socio-economic changes may be taking place in the Southeast HCD neighborhood. As for the loan process, the program was rated highly by the recipients of the loans, both in in-house evaluations done for the Portland Development Commission and as reported in the neighborhood survey. The study concludes that the city's efforts provided a solid first step in developing a strong commitment to strengthening inner city neighborhoods, but it is only a first step. A stronger commitment, particularly on the part of private industry, is needed to end urban neighborhood decline.

Over the last several years, the number of international students attending colleges and universities in the United States has increased substantially. While considerable time, effort, and university resources are often devoted to the recruitment of international students, it is unclear how well institutions are meeting the needs of these students. This growing number of international students requires foreign exchange professionals and university administrators to better understand the reasons why international students pursue higher education in the United States and the challenges they face. This exploratory case study is to examine the challenges international graduate students encounter in adjusting to their new status as graduate students. Six research questions framed this study: What difficulties do international students face in their first year in graduate school? What adjustments do they need to make in their first year in graduate school? What challenges do continuing international graduate students face? In what ways are perspectives of continuing international graduate students similar to perspectives of beginning international graduate students? What university support resources do international graduate students say are helpful? What PSU support resources are needed, but missing? The relevant literature addresses academic, social, psychological, cultural, financial, and housing adjustment challenges. The data for this research were collected by interviewing and surveying international graduate students at PSU. Data were analyzed using standard methods of qualitative data analysis. Consistent with the results from other research, this study reveals the following adjustment challenges: unsatisfactory accommodation; inadequate financial resources; lack of culturally specific programs that are intentional, flexible and accessible; unfamiliarity with the new educational system; limited English proficiency; undeveloped infrastructure for on-going orientation; insufficient health services information; and unavailability of international student mentoring programs. The findings of this study have the potential to inform both researchers and practitioners as institutions attempt to create sufficient international student support services.

Online learning is taking our nation by storm and changing the face of education forever. By 2014 we are projected to have 10 million students taking at least one online class (Nagel, 2009). The online revolution is one of the greatest changes the field of education has seen in the last 25 years (Greenway & Vanourek, 2006). This major shift in education also represents a major shift in how our teachers are prepared and what great teaching looks like in online settings. The online classroom is distinctly different than the brick-and-mortar classroom, and success in the classroom does not necessarily translate into the online environment (Watson, Murin, Vashaw, Gemin, & Rapp, 2011). Our students deserve the best online teachers to ensure the potential of online learning is fulfilled (Cavanaugh, Gillan, Kromrey, Hess, & Blomeyer, 2004). Top quality online teachers are those who have mastered or can demonstrate the ability to quickly learn the specific skills of technology, online instructional design and delivery, communication, and online learning professional development. This study will explore and analyze the impact of the website K-12 Online Staffing Solutions on the recruitment, hiring, and induction practices for K-12 online administrators. Using the research and development research model, developed by Borg and Gall (1989), the website will undergo a series of qualitative feedback and product revision cycles with participants. The results of the study showed that the website tool was easy to use and impacted the practice of virtual school administrators in Oregon. The results have implications beyond virtual charter schools in Oregon. Online learning is growing and administrators need practical, accessible, and research based tools to successfully meet the need for online K-12 options.

Growing concern over earthquakes in the Pacific Northwest has prompted the mapping and location of near surface faults in the Portland area, Oregon. Visible evidence of faults is poor, requiring the use of geophysical methods to assist in mapping and defining structures in the basin. Gravity maps and models may help in addressing this problem.

The present thesis describes the connection between political corruption and vice crime in Portland as it was portrayed by media and public institutions and agencies in the 1940s and 1950s. The main body of the thesis discusses attempts to rid Portland of its vice problem through the City Club's crusade against crime and crooked politicians in the late 1940s and early 1950s and Mayor Dorothy McCullough Lee's subsequent reform movements against gambling and prostitution. The thesis will analyze The Oregonian's expose' on bootlegging, gambling, prostitution and links drawn by the newspaper to the Teamster's Union and Oregon politicians. From there, the study focuses on Washington D. C. and the McClellan Committee's 1950s hearings on the mismanagement and corruption of Teamster leaders in local and national chapters. Finally, the thesis analyzes the role of Portland's two daily newspapers and their contributions to the controversies and mixed messages over vice and crime in the city between World War II and 1957.

Evidence of physical decline due in part to the rapid encroachment of commercial and industrial activity into some of Portland's residential areas in the mid-1960s and efforts to combat the forces of time and change through neighborhood revitalization provide the basis for this study. Additionally, some of the characteristics often employed in explaining the phenomenon in cities are manifested in the city of Portland. For example, Portland is endowed with a distinctive and well established downtown area that provides opportunities for the establishment of businesses as well as white-collar job opportunities. By the standards of the U.S. Bureau of the Census, Portland has a relatively large population and several older neighborhoods. The city provides its residents the feel for inner-city living, such as its beautiful waterfront scenery, its high-rise and park block apartments, its cultural facilities and unique transit mall. These criteria underscore the selection of Portland as the geographical area of this research. The purpose of this research itself is to assess the urban structural changes that occurred in Portland between 1970 and 1980. The research used a sample of inner-city neighborhoods from the city to explain these structural changes over time. Additionally, two samples of neighborhoods (Northeast and Southeast) within the city were selected as the basis for comparing the structural changes. The data developed from the 1970 and 1980 census of population and housing characteristics comprised the change in the median household income ratio, the change in the home value ratio, and the change in the median rent ratio designated as dependent variables. Nine independent variables representing the pre-existing conditions in the city at the start of the decade were selected from locational, demographic, and housing factors. The research hypotheses were tested by regresslng the three dependent variables against the nine independent variables resulting in three regression models for each sample. The a priori expectations as reflected by the signs of the coefficients show mixed support for the hypotheses in each sample in predicted direction, and in level of significance. In the city sample the neighborhood housing quality factor was observed to have a strong positive causal relationship with neighborhood revitalization. The outcome confirmed the contention that a significant and systematic reverse revival trend occurred in Portland at the start of the 1970 decade. This finding contradicts the conventional invasion-succession theory associated with Burgess (1925). Similar reverse revival trends were observed in the Northeast and Southeast samples. But unlike the city sample the race factor had a strong positive causal relationship with revitalization. The outcome may be a reflection of the rental squeeze in terms of housing affordability faced by black renters in both subareas because their incomes could not keep pace with housing costs. Consequently their demand for rental housing may have grown faster than the supply of the rental housing stock in a segregated rental market. The chow tests show significant structural differences between the two submodels, but the impact of the race factor as reflected by the measures of relative variability was greater in Northeast Portland than in Southeast Portland. In light of the research findings, this study concludes that Portland may undoubtedly be the only city in the nation that experienced a significant and systematic revival trend between 1970 and 1980. However, this trend did not extend to the predominantly black areas of the city as reflected by the strong negative outcome of the race factor. In addition, the functional significance of the systematic revival trend in Portland may not be substantial when compared to larger and older cities like St. Louis and New Orleans that received media attention for a similar trend.