Investigation of a laser Doppler velocimeter system to measure the flow field around a large scale V/STOL aircraft in ground effect

The flow field measured around a hovering 70 percent scale vertical takeoff and landing (V/STOL) aircraft model is described. The velocity measurements were conducted with a ground based laser Doppler velocimeter. The remote sensing instrumentation and experimental tests of the velocity surveys are discussed. The distribution of vertical velocity in the fan jet and fountain; the radial velocity in the wall jet and the horizontal velocity along the aircraft underside are presented for different engine rpms and aircraft height above ground. Results show that it is feasible to use a mobile laser Doppler velocimeter to measure the flow field generated by a large scale V/STOL aircraft operating in ground effect

The effect of quantitative easing on long-term interest rates

In December 2008, with the target Fed Funds rate at a zero lower bound, the Federal Reserve had to use an unprecedented monetary policy tool known as quantitative easing to help stimulate the economy and achieve economic goals. This paper will explain what quantitative easing is, why it became necessary and how it has been implemented. In t his paper, we will discuss prior literature from Federal Reserve staff economists on the fluctuation of long-term interest rated in response to these quantitative easing policies. The paper will conclude with a ordinary least squares regression analysis using United States economic data to try and explain the marginal effect of quantitative easing on various long-term rates. Our model indicates that to this point, quantitative easing was successful in lowering mortgage rates, but its impact on Treasury rates is statistically insignificant

Sustainable Management Practices of Under Story Brush Species in Southern Coastal Oregon

The coastal forests of Oregon are among the most biologically productive regions in the world. This high level of forest productivity enabled a large timber industry to grow in the region, and supply the area with its economic and cultural base. The economy experienced a crisis during the 1980s when the logging industry began closing down mills and laying people off. One factor which contributed to the loss of jobs was the loss of old growth trees due to decades of harvesting. As loggers tried to harvest the remaining old growth trees, environmentalist organized and successfully slowed down, or halted their efforts. While the attitudes of the past may have been one of either jobs or the environments, today there are many who are trying to find a balance and integrate the two through a sustainable forest management philosophy known as eco-forestry. Two challenges to this practice are how to sustainably suppress competitive under story brush species, and how to manage riparian zones. This capstone addresses both of these issues. The past and present uses of brush species including, the floral and nursery industry, as food for agricultural animals, medicinal and aboriginal uses are reviewed. A survey for economic brush species in riparian zones under different forestry management practices is discussed. The findings indicate that the eco-forested site had a higher number of economic brush species then sites under different management practices, including preserved sites. The logging site which had trees harvested in its riparian zone had a different assemblage of species then either other logging or preserved sites. There was no correlation between the ground coverage of one brush species to another, but a decrease in the ground coverage of Rubus species may lead to an increase in overall biodiversity. Stream bank instability was found to be greatest in sites of industrial logging. The eco-forested sites conversely had the most stable stream banks of any site. How to manage riparian zones for economic brush species and the need for a program which certifies small, independent, sustainable, no-climax based, forestry practices are discussed

Faculty Recital: Michelle Vought

Center for the Performing ArtsSeptember 12, 2012Wednesday Evening8:00 p.m

E-leadership in Practice: The Components of Transformational Leadership in Virtual Business Environments

Today more and more organizations increasingly conduct business using globally distributed teams, also called virtual teams, because of the availability and ubiquity of information and communication technology. E-leadership refers to leading through computer-mediated communication. In the field of e-leadership, transformational leadership has been studied for the past two decades and has been the most-often-cited leadership theory. The literature review discusses how transformational leadership behaviors affect team performance in the context of virtuality, in particular interpersonal trust and organizational commitment of the virtual team members. The researcher conducted a quantitative research study to examine (a) the relationships between transformational leadership and interpersonal trust and organizational commitment of virtual team members, (b) the impacts of the four constructs of transformational leadership via computer-mediated communication, and (c) the moderating effect of the degree of virtuality on such relationships. Study results indicate that transformational leadership behaviors positively affected interpersonal trust and organizational commitment of virtual team members. Among its four constructs, one particular construct—individualized consideration—had a more prominent role. Variety of practices moderated the relationship between transformational leadership and interpersonal trust. Practical implications and future research directions in the emerging field of transformational e-leadership are discussed. Future research directions are suggested

Faculty Recital Series: Michelle Vought

Center for the Performing ArtsFebruary 24, 2014Monday Evening8:00 p.m

Death Defying Displays of Divahood

Center for the Performing Arts Tuesday Evening February 1, 2005 8:00p.m

Lust, Laughter & Las Vegas!

Center for the Performing Arts Tuesday Evening April 18, 2006 8:00p.m

Total Tumor Load Assessed by One-Step Nucleic Acid Amplification Assay as an Intraoperative Predictor for Non-Sentinel Lymph Node Metastasis in Breast Cancer

BACKGROUND: This study aimed to determine the relationship between CK19 mRNA copy number in sentinel lymph nodes (SLN) assessed by one-step nucleic acid amplification (OSNA) technique, and non-sentinel lymph nodes (NSLN) metastization in invasive breast cancer. A model using total tumor load (TTL) obtained by OSNA technique was also constructed to evaluate its predictability. METHODS: We conducted an observational retrospective study including 598 patients with clinically T1-T3 and node negative invasive breast cancer. Of the 88 patients with positive SLN, 58 patients fulfill the inclusion criteria. RESULTS: In the analyzed group 25.86% had at least one positive NSLN in axillary lymph node dissection. Univariate analysis showed that tumor size, TTL and number of SLN macrometastases were predictive factors for NSLN metastases. In multivariate analysis just the TTL was predictive for positive NSLN (OR 2.67; 95% CI 1.06-6.70; P = 0.036). The ROC curve for the model using TTL alone was obtained and an AUC of 0.805 (95% CI 0.69-0.92) was achieved. For TTL >1.9 × 105 copies/μL we got 73.3% sensitivity, 74.4% specificity and 88.9% negative predictive value to predict NSLN metastases. CONCLUSION: When using OSNA technique to evaluate SLN, NSLN metastases can be predicted intraoperatively. This prediction tool could help in decision for axillary lymph node dissection.info:eu-repo/semantics/publishedVersio