Digital Commons Network^™

Impact Of Singing Intervention On Vocal Fatigue Effects: A Single Subject Study, Nancy Devine Ferguson

Dissertations and Theses

This single subject descriptive study investigated the efficacy of singing intervention on the effects of vocal fatigue on the speaking voice of a non-singing individual. Baseline measures were taken on a single subject prior to voice treatment. Data were collected before and after the subject performed a vocally fatiguing task of 1 hour of prolonged reading at 80% of his maximum vocal intensity level. Data collection consisted of the following acoustic and aerodynamic characteristics of the subject's speaking voice: fundamental frequency, jitter, shimmer, maximum intensity level, and maximum phonation duration, as well as obtainment of the subject's self-perceptions of vocal …

Complaint Patterns Of Japanese English As A Second Language Students, Eriko Matsuda

Dissertations and Theses

This study investigates cross-cultural production of speech acts of complaints. Speech acts are considered culture-specific. Speakers of different cultural background may have different ways of dealing with speech act situations. It is important for language educators to be aware of such differences. Previous studies show that second/foreign language learners tend to transfer their first language habits when performing speech acts in a target language. In this study, the complaint speech act performance of Japanese English as a second language students was compared to the performance of native speakers of English and native speakers of Japanese to see if first language …

Simple Model For Linear And Nonlinear Mixing At Unstable Fluid Interfaces With Variable Acceleration, John D. Ramshaw

Physics Faculty Publications and Presentations

A simple model is described for predicting the time evolution of the half-width h of a mixing layer between two initially separated immiscible fluids of different density subjected to an arbitrary time-dependent variable acceleration history a(t). The model is based on a heuristic expression for the kinetic energy per unit area of the mixing layer. This expression is based on that for the kinetic energy of a linearly perturbed interface, but with a dynamically renormalized wavelength which becomes proportional to h in the nonlinear regime. An equation of motion for h is then derived from Lagrange's equations. This model reproduces …

Faculty Senate Monthly Packet November 1998, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The November 1998 Monthly packet includes the November agenda and appendices and the Faculty Senate minutes and attachments from the meeting held October 1998.

From Downtown Plan To Central City Summit: Trends In Portland's Central City, 1970-1998, Carl Abbott, Gerhard Pagenstecher, Britt Parrott

Portland Regional Planning History

A report to Association for Portland Progress, City of Portland, Metro, Multnomah County, Portland State University and State of Oregon.

The Evolving Role Of Semiconductor Consortia In The United States And Japan, Rose Marie Ham, Greg Linden, Melissa M. Appleyard

Business Faculty Publications and Presentations

This article examines the interactions between public and private actors as cooperation in the semiconductor industry becomes increasingly international. The latest manifestations of multilateral collaboration are two consortia: I300I based in the United States and Selete based in Japan. Through an analysis of their structures and their origins, this article provides a deeper understanding of the complexities facing industry-wide consortia, the role of the government in promoting or inhibiting cooperation, and the lingering rivalries that impede truly global cooperation in a dynamic, high-technology industry.

Theories Of Structure Versus Theories Of Change, Melanie Mitchell

Computer Science Faculty Publications and Presentations

The dynamics/computation debate recalls a similar debate in the evolutionary biology community concerning the relative primacy of theories of structure versus theories of change. A full account of cognition will require a rapprochement between such theories and will include both computational and dynamical notions. The key to making computation relevant to cognition is not making it analog, but rather understanding how functional information-processing structures can emerge in complex dynamical systems.

Habituation, Novelty Response, And Object Differentiation In The Weakly Electric Fish, Brachyhypopomus Pinnacaudatus, Gregory J. Scott

Dissertations and Theses

Weakly electric fish use a combination of active electrolocation and passive mechanosensory receptors for object detection and analysis. When tested with repeated presentations of the same moving object, Brachyhypopomus pinnacaudatus showed a gradual habituation of its electric organ pacemaker acceleration response (novelty response) that was unaltered by changes in the replacement electric organ discharge (S1). When tested with objects of differing velocities, the novelty response of the fish was proportional to the change in velocity of object. The responses of fish to objects that presented different mechanosensory profiles, but equal electrosensory profiles, suggest that the fish used the electrosensory system …

Portland State Magazine, Portland State University. Office Of University Communications

Portland State Magazine

PSU’s alumni magazine, published 2-3 times a year. In this issue: What makes seemingly good kids don ski masks and rob and terrorize a city?; a grand entrance into Portland State and south downtown is now under construction; for three alumni, finding the right job was not a daydream or a nightmare, but a real choice; in the last issue of PSU Magazine the School of Engineering was hot news. It just keeps getting better; hidden in the Columbia River Basin are stories historians are now discovering; and more.

A Feedback-Driven Proportion Allocator For Real-Rate Scheduling, David Steere, Ashvin Goel, Joshua Gruenberg, Dylan Mcnamee, Calton Pu, Jonathan Walpole

Computer Science Faculty Publications and Presentations

In this paper we propose changing the decades-old practice of allocating CPU to threads based on priority to a scheme based on proportion and period. Our scheme allocates to each thread a percentage of CPU cycles over a period of time, and uses a feedback-based adaptive scheduler to assign automatically both proportion and period. Applications with known requirements, such as isochronous software devices, can bypass the adaptive scheduler by specifying their desired proportion and/or period. As a result, our scheme provides reservations to applications that need them, and the benefits of proportion and period to those that do not. Adaptive …

Water Flow Through Temperate Glaciers, Andrew G. Fountain, Joseph S. Walder

Geography Faculty Publications and Presentations

Understanding water movement through a glacier is fundamental to several critical issues in glaciology, including glacier dynamics, glacier-induced floods, and the prediction of runoff from glacierized drainage basins. To this end we have synthesized a conceptual model of water movement through a temperate glacier from the surface to the outlet stream. Processes that regulate the rate and distribution of water input at the glacier surface and that regulate water movement from the surface to the bed play important but commonly neglected roles in glacier hydrology. Where a glacier is covered by a layer of porous, permeable firn (the accumulation zone), …

Synthetic Files: Enabling Low-Latency File I/O For Qos-Adaptive Applications, Dylan Mcnamee, Dan Revel, Calton Pu, David Steere, Jonathan Walpole

Computer Science Faculty Publications and Presentations

Files are a tried and true operating system abstraction. They present a simple byte-stream model of I/O that has proven intuitive for application programmers and efficient for operating system builders. However, current file systems do not provide good support for adaptive continuous media (CM) applications - an increasingly important class of applications that exhibit complex access patterns and are particularly sensitive to variations in I/O performance. To address these problems we propose synthetic files. Synthetic files are specialized views of underlying regular files, and convert complex file access patterns into simple sequential synthetic file access patterns. Synthetic file construction can …

Usability Of Visual Basic For Parallel Programming On Windows Nt, James Scott Barker

Dissertations and Theses

Visual Basic is a very popular language. Many hardware engineers have learned Visual Basic because of its simplicity, but have never learned C or C++. Furthermore, people are choosing not to use C or C++ for business software development, but instead are embracing languages such as Visual Basic. Since one of the goals of the parallel programming community has been to encourage more widespread use of parallelism in software, this body of programming talent needs to be addressed.

This thesis intends to prove that Visual Basic can be used for parallel programming, that using it is at least as easy …

The Role Of Soil Test Information In Reducing Groundwater Pollution, Ronald A. Fleming, Richard M. Adams, David E. Ervin

Economics Faculty Publications and Presentations

Testing soils for nutrients is expected to improve groundwater quality. However, it is unknown whether soil testing will improve groundwater quality sufficiently to decrease the demand for direct regulation of agricultural practices. Focusing on an irrigated agricultural region in eastern Oregon, the economic and environmental aspects of soil testing are assessed using a spatially distributed, dynamic simulation model which links economic behavior with the physical processes that determine groundwater quality. Results indicate that soil testing of all fields increases farm profits and reduces groundwater nitrate concentration. However, the benefits are small in terms of potential improvements in groundwater quality.

The Judging Process For Sym Bowl: A High School System Dynamics Modeling Competition, Wayne W. Wakeland

Complex Systems Faculty Publications and Presentations

This “paper” describes the judging process used to determine the winners in SymBowl, a high school system dynamics modeling competition held in Portland, Oregon the past three years. SymBowl was created by Ed Gallaher, a medical researcher at the Portland VA Hospital and Associate Professor at Oregon Health Sciences University.

The judging criteria and judging process were developed by Wakeland, who has served as the judging coordinating for past three years, overseeing the process, compiling results, etc. Wakeland is an Adjunct Professor of System Science at Portland State University where he teaches graduate-level modeling and simulation classes.

Effects Of Light Rail Transit In Portland: Implications For Transit-Oriented Development Design Concepts, Kenneth Dueker, Martha J. Bianco

Center for Urban Studies Publications and Reports

In the Portland, Oregon, region many local planners have embraced the neotraditional planning concept in the form of transit-oriented development (TOD). One of the primary components of transit-oriented development, light rail transit (LRT), has been in place in Portland long enough to provide data for analysis. Because neotraditional planners often emphasize LRT as a crucial element in decreasing auto use and in encouraging high-density development, this paper examines the effects of LRT in the Portland region including mode share, density, and property values. The empirical analysis provides evidence that light rail alone has not been sufficient to have an appreciable …

Automated Bus Dispatching, Operations, Control, And Service Reliability: Baseline Analysis, James G. Strathman, Kenneth Dueker, Thomas J. Kimpel, Rick Gerhart, Ken Turner, Pete Taylor, Steve Callas, David Griffin, Janet Hopper

Center for Urban Studies Publications and Reports

The authors of this report are engaged in a long term project to assess the impacts of Tri-Met's BDS on service reliability and transit use. The framework designed for this assessment focuses on documenting service reliability and passenger activity at three major junctures:

• The pre-operational (baseline) period;

• The initial (passive) period following implementation of the new system, when both drivers and dispatchers have access to schedule adherence information in real time, but before the development and use of operations control practices that exploit the information generated by the system;

• Full implementation, when operations control practices are defined …

Šawaš Ili?I-Šawaš Wawa -- 'Indian Country--Indian Language' : A Participant Observation Case Study Of Language Planning By The Confederated Tribes Of The Grand Ronde Community Of Oregon, Gregry Michael Davis

Dissertations and Theses

The Kwelth Tahlkie Culture and Heritage Board (KTC&HB) of the Confederated Tribes of the Grand Ronde Community of Oregon (CTGR) have made it a priority to revitalize one of the languages which historically has been associated with being a Grand Ronde Indian-Chinook Jargon, referred to as činuk wawa 'Chinook talk' or simply činuk.

The purpose of the present study was to observe the language planning process as executed by the KTC&HB. Initial guiding questions were: (i) What stages is the KTC&HB going through in the process of planning for činuk revitalization? (ii) How do these efforts compare with theory and …

Speech Parameters Affects On Social Acceptability Ratings Of Adolescents With Repaired Cleft Lip And/Or Palate, Sarah Telkins Hoff

Dissertations and Theses

The current study explored speech social acceptability ratings of adolescents with and without orofacial clefts. The study utilized speech samples previously collected on 80 adolescents, 40 cleft and 40 noncleft, dubbed on to a stimulus tape in a random order. From an earlier study the following were available: (a) adolescent (cleft and noncleft) self-ratings of speech social acceptability, (b) objective ratings of the adolescents' speech social acceptability provided by a listener panel with no background in speech-language pathology. New data were collected by recruiting a new listener panel of 10 graduate students with training in speech-language pathology, utilizing a 7-point …

God, Union And Liberty: The Military As The Key Player In Costa Rica, 1820-1824, Aaron Arguedas

Dissertations and Theses

In Costa Rica at the time of independence a central government did not exist, and even after its organization, it remained very weak. Due to this fact military officers stepped forward to control and govern each town. After controlling each town military officers fought for political control of the country. During these years to become a military officer was the best professional career to follow. Military officers were looked upon with respect, fear and power. As a result military culture became the social realm which controlled towns and guided state formation in the 1820s.

Before and after independence in Costa …

The Effects Of Cohabitation On Subsequent Marital Satisfaction, Brenda Fague

Dissertations and Theses

Most research on cohabitation has focused on the subsequent marital instability of cohabitors. However, these findings are inconsistent and. considering the great number of stable unhappy marriages, marital stability is not an accurate measure of relationship success.

The purpose of this research is to compare the relationship satisfaction reported by married couples who cohabited prior to their marriage with the satisfaction of married couples who did not cohabit premaritally. This research uses respondents' self-reported relationship satisfaction as a measure of relationship success.

General Social Survey data collected in 1988 and 1994 were analyzed to determine the relationship between premarital cohabitation …

Faculty Senate Monthly Packet June 1998, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The June 1998 Monthly packet includes the June agenda and appendices and the Faculty Senate minutes and attachments from the meeting held May 1998.

Location Independent Names For Nomadic Computers, David Steere, Mark Morrissey, Peter Geib, Calton Pu, Jonathan Walpole

Computer Science Faculty Publications and Presentations

Recent advances in the Domain Name System (DNS) and the Dynamic Host Configuration Protocol (DHCP) have enabled a new approach to supporting mobile users: location independent naming. In this approach, machines use the same hostname from any internet location, but use an IP address that corresponds to their current location. We describe a protocol that implements location independent naming for nomadic computers, i.e., machines that do not need transparent mobility. Our protocol allows hosts to move across security domains, uses existing protocols, and preserves existing trust relationships. Therefore, it preserves the performance and security of normal IP for nomadic computers …

Meeting Notes 1998-05-14 , Joint Policy Advisory Committee On Transportation

Joint Policy Advisory Committee on Transportation

No abstract provided.

Information Content In American Television Advertising: A Replication And Update, Laura Kathleen Sandgren

Dissertations and Theses

Three hundred and seven randomly selected American network television commercials aired between October 18 and November 18, 1997 were analyzed to determine their informational value using the fourteen criteria established by Resnik and Stem in 1977. The results of this study were compared with Resnik and Stem's 1991 study, revealing that there has not been any significant change in the amount of information in American television commercials since Resnik and Stem's replication sample.

This study also used Resnik and Stem's (1977) criteria to further examine if the amount-of information contained in TV commercials varied depending on the gender or age …

Intuition In The Undergraduate Nursing Curriculum: Faculty Attitudes, Practices And Preparation, Beverly Jean Epeneter

Dissertations and Theses

The primary goal of undergraduate nursing programs is to prepare students for nursing practice. Achievement of this goal may be hindered by reliance on the scientific method in nursing education. Nursing practice often requires the ability to make judgments in situations of ambiguity without the benefit of objective data. The ability to rapidly "read" a situation and respond appropriately is critical to safe nursing care. This requires education in the intuitive way of knowing. Intuitive development may be impeded when students are taught to rely on the rational, scientific way of knowing. The end result may be that students are …

Faculty Senate Monthly Packet May 1998, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The May 1998 Monthly packet includes the May agenda and appendices and the Faculty Senate minutes and attachments from the meeting held April 1998.

Portland State Magazine, Portland State University. Office Of University Communications

Portland State Magazine

PSU’s alumni magazine, published 2-3 times a year. In this issue: It’s a home field win for women’s softball, as the team gives Coach Teri Mariani her 500th career victory; the Oregon coast has provided the setting and inspiration for PSU’s Haystack program during the past 30 years; just two years ago, the PSU Engineering School was in trouble—now it is the hub of a new statewide network; the Rev. Phil Harder is leaving his congregation—the PSU campus—after more than 20 years of spiritual guidance; freelance writer susan hauser shares her funny, quirky stories of Portland people and events; the …

Putting The Region To Work: An Analysis Of Workforce Development Services In Multnomah And Washington Counties, Kim Burnett, Ray Jackson, Britt Parrott, Matt Ransom, Claire Smith

Master of Urban and Regional Planning Workshop Projects

This study was produced primarily as a tool for policy advocacy Workforce Development members therefore much of the analysis focuses on the role that community based organizations and community development corporations play in workforce development. However, policy makers and technical assistance providers, such as the Workforce Development Board, as well as government agencies, also play a critical role in the region’s workforce development system. Although this report does not focus as much on the role of these agencies, further study is needed to offer suggestions for how these players can best coordinate their efforts with that of community based organizations …

Patient-Guided Investigation Of The Restoration Of Health Following Traumatic Brain Injury, Nancy Ann Carney

Dissertations and Theses

The development of emergency department medical interventions and the implementation of fast-transport trauma systems has decreased the rate of death resulting from traumatic brain injury (TBI). Without corresponding methods for long-term treatment and recovery, the prevalence of people disabled by TBI has increased, creating a growing public health problem. Investigations generated by physicians, rehabilitation programs, and social scientists, which attempt to associate standard measures of injury severity with outcome, leave unexplained variance in long-term functional status for persons with TBI.

The purpose of this investigation was to use persons with brain injury and their family members, to guide an analysis …