Digital Commons Network^™

Impacts Of Columbia River Discharge On Salmonid Habitat: 1. A Nonstationary Fluvial Tide Model, David A. Jay, Tobias Kukulka

Civil and Environmental Engineering Faculty Publications and Presentations

This is the first part of a two-part investigation that applies nonstationary time series analysis methods and the St. Venant equations to the problem of understanding juvenile salmonid access to favorable shallow-water habitat in a tidal river. Habitat access is a function of river stage, tidal range, and the distribution of bed elevation. Part 1 models nonstationary tidal properties: species amplitudes and phases and tidal range. Part 2 models low-frequency river stage in the Lower Columbia River and reconstructs historical water levels, using the tidal model from part 1. To incorporate the nonstationary frictional effects of variable river discharge into …

Impacts Of Columbia River Discharge On Salmonid Habitat: 2. Changes In Shallow-Water Habitat, David A. Jay, Tobias Kukulka

Civil and Environmental Engineering Faculty Publications and Presentations

This is the second part of an investigation that analyzes human alteration of shallow-water habitat (SWH) available to juvenile salmonids in the tidal Lower Columbia River. Part 2 develops a one-dimensional, subtidal river stage model that explains ~90% of the stage variance in the tidal river. This model and the tidal model developed in part 1 (Kukulka and Jay, 2003) uncouple the nonlinear interaction of river tides and river stage by referring both to external forcing by river discharge, ocean tides, and atmospheric pressure. Applying the two models, daily high-water levels were predicted for a reach from rkm-50 to rkm-90 …

A Browser For Incremental Programming, Andrew P. Black

Computer Science Faculty Publications and Presentations

Much of the elegance and power of Smalltalk comes from its programming environment and tools. First introduced more than 20 years ago, the Smalltalk browser enables programmers to “home in” on particular methods using a hierarchy of manually-defined classifications. By its nature, this classification scheme says a lot about the desired state of the code, but little about the actual state of the code as it is being developed. We have extended the Smalltalk browser with dynamically computed virtual categories that dramatically improve the browser’s support for incremental programming. We illustrate these improvements by example, and describe the algorithms used …

The Acquisition Of A Stage Dialect, Nathaniel George Halloran

Dissertations and Theses

This study reports on the effectiveness of (theatrical) stage dialect learning techniques in bringing about linguistically authentic change. Actors use several techniques, some rather esoteric in nature and others more closely tied to linguistic fact such as the use of the International Phonetic Alphabet. The purpose of this study is to examine some of these techniques as to their ability to bring about linguistic authenticity, as well as to attempt a comparison of stage dialect acquisition and naturalistic dialect acquisition.

Data were collected by interviewing a convenience sample of twelve student actors. Six of these (three males, three females) were …

Las Migraciones Del Siglo Xxi: En Busca Del Norte, Eva NúÑEz-MéNdez

World Languages and Literatures Faculty Publications and Presentations

Examines the current wave of immigrants to the United States and other countries, including the social and economic forces that generated it, as well as possible outcomes.

Research Note: Determinants Of Bus Dwell Time, Kenneth Dueker, Thomas J. Kimpel, James G. Strathman, Steve Callas

Center for Urban Studies Publications and Reports

This research note reports an analysis of dwell times at bus stops using archived Automatic Vehicle Location/ Automatic Passenger Counter (AVL/APC) data reported at the level of the individual bus stop. The data provide a large number of observations that serve to better understand the determinants of dwells, including analysis of rare events, such as lift operations. The analysis of bus dwell times at bus stops is applicable to TriMet, the transit provider for the Portland metropolitan area, and transit agencies in general. The determinants of dwell time include passenger activity, lift operations and other effects: low floor bus, time …

Changing Structure Of The Arms Trade: A Social Network Analysis, David Todd Kinsella

Political Science Faculty Publications and Presentations

The global arms trade should be understood not as a market but as a network, one that shares some important properties with networked forms of organization studied by sociologists. I make this argument and then employ quantitative methods developed for social network analysis in an effort to describe the evolving structure of the arms trade network since the end of World War II. That structure has changed significantly over the past fifty years. It became less dense in the early years of the cold war as newly independent states joined the society of states, but had yet to develop many …

Next-Of-Kin Perceptions Of Physician Responsiveness To Symptoms Of Hospitalized Patients Near Death, Joel C. Cantor, Jan Blustein, Matthew J. Carlson, David A. Gould

Sociology Faculty Publications and Presentations

Many different medical providers visit critically ill patients during a hospitalization, and patients and family members may not feel any physician is truly in charge of care. This study explores whether perceiving that a physician was clearly in charge is associated with reports by surviving next of kin about the responsiveness of physicians to symptoms in hospitalized patients near the end of life. We conducted telephone interviews with surviving next of kin of adult patients (n = 1107) who died in one of five New York City teaching hospitals between April 1998 and June 1999 after a minimum 3-day inpatient …

Modeling Carrier Behavior In Sequential Auction Transportation Markets, Miguel Andres Figliozzi, Hani S. Mahmassani, Patrick Jaillet

Civil and Environmental Engineering Faculty Publications and Presentations

Online markets for transportation services, in the form of Internet sites that dynamically match shipments (shippers? demand) and transportation capacity (carriers? offer) through auction mechanisms are changing the traditional structure of transportation markets. A general framework for the study of carriers? behavior in a sequential auction transportation marketplace is provided. The unique characteristics of these marketplaces and the sources of difficulty in analyzing the behavior of these marketplaces are discussed. Learning and behavior in a sequential Vickrey auction marketplace is analyzed and simulated. Some results and the overall behavioral framework are also discussed.

Spontaneous Coherent Pulsations In 3.39-M He–Ne Standing-Wave Laser Oscillators, Pitak Chenkosol, Lee W. Casperson

Electrical and Computer Engineering Faculty Publications and Presentations

Spontaneous pulsations similar to the type discovered in 3.51-μm Xe laser oscillators were reported several years ago in 3.39-μm He–Ne lasers, but no numerical interpretation of the He–Ne data has been given. The model for the Xe laser instability is adapted here to the He–Ne system, and the results include direct comparisons between theoretical calculations and published experimental data. Good agreement is obtained for the instability threshold, the pulsation frequencies, and many other features; and unmeasured but potentially useful pulsation characteristics are also readily obtained from the model.

Adaptive Live Video Streaming By Priority Drop, Jie Huang, Charles Krasic, Jonathan Walpole

Computer Science Faculty Publications and Presentations

In this paper we explore the use of Priority-progress streaming (PPS) for video surveillance applications. PPS is an adaptive streaming technique for the delivery of continuous media over variable bit-rate channels. It is based on the simple idea of reordering media components within a time window into priority order before transmission. The main concern when using PPS for live video streaming is the time delay introduced by reordering. In this paper we describe how PPS can be extended to support live streaming and show that the delay inherent in the approach can be tuned to satisfy a wide range of …

The Portland Spectator, Summer 2003, Portland State University. Student Publications Board

Portland Spectator

Editor: Napoleon Linardatos

Articles in this issue include: Threatening the tuition plateau: making a serious problem even worse; Grand Theft paranoia: why violent video games are not a problem; The field of economic dreams: bringing major league baseball to Portland; Propaganda: the anti-drug; The right against the way: the forgotten anti-war activists; and The Jayson Blair affair: unwitting tribune of racial hope.

Draft Development Strategy, Ernest Bonner

Ernie Bonner Collection

No abstract provided.

Memo To Neil From Ernie B., Ernest Bonner

Ernie Bonner Collection

No abstract provided.

Ernie Bonner Email To Kathryn Leveque, Ernest Bonner

Ernie Bonner Collection

No abstract provided.

Measure For Measure: Benchmarking The Region's Future, Don Barney, Alan Kenneth Delatorre

Institute of Portland Metropolitan Studies Publications

Through its Progress Board created in 1989 and Oregon Benchmarks, Oregon has been a leader in collecting and using data to discern statewide trends in dozens of different economic, environmental, and social arenas. Oregon was among the first U.S. states to set targets for the future in each of these categories, allowing its citizens to see how much farther we have to go to achieve livability goals. These benchmarks are grouped under three major areas of a state strategic plan: quality jobs for all Oregonians; safe, caring and eng aged communities; and healthy, sustainable surroundings. Is there real value in …

The Landscape: The Urban Center Plaza, Carl Abbott

Metroscape

An overview of the Urban Center Plaza in Portland, Oregon, highlighting its design, construction and public uses.

Periodic Atlas Of The Metroscape: Common Ground? Land Use Along Portland's Urban Growth Boundary, Thomas Harvey, Martha A. Works

Metroscape

In this study we analyze the impact of the urban growth boundary on rural landscape change in Portland, Oregon, and Clark County, Washington,and assess the importance of rural and agricultural landscapes to residents of the rural-urban fringe. We selected five, 4-square mile areas in the greater Portland metropolitan area for the study. Four are in Oregon and cover the transition area from urban to rural land uses under different levels of pressure along the state-mandated and Metrodel ineated urban growth boundary. One is in the less regulated land use environment of Clark County, Washington. The kinds of questions we addressed …

A Man For All Regions, Sumner Sharpe

Metroscape

A native of Egypt, Nohad Toulan has been a faculty member at Portland State University since 1972 when he founded the Urban Studies Program at Portland State University. Under his leadership the program evolved from modest beginnings as an undergraduate certificate progam into a Ph.D. grant ing school and in 2000 it became the College of Urban and Public Affairs. The college has maintained its stature as one of the leading urban studies programs in the nation. Dr. Toulon also founded the Institute of Portland Metropolitan Studies in 1993. Trained as an engineer and planner, Dr. Toulon has been an …

Focal Point, Volume 17 Number 01, Portland State University. Regional Research Institute

Research and Training Center - Focal Point

This issue of Focal Point offers insight on cultural reciprocity, clinical outcomes for diverse youth, culturally competent research practices for African-American communities, identifying behavioral strengths in Black children, and cultural competence in services.

Transportation Costs And The American Dream: Why A Lack Of Transportation Choices Strains The Family Budget And Hinders Home Ownership, Surface Transportation Policy Project

Portland Regional Planning History

This report focuses on the relationship between the rising cost of transportation and family budgets

Beyond Guilt: How To Deal With Societal Racism, Lauren N. Nile, Jack C. Straton

Education Faculty Publications and Presentations

This article addresses the specific form of racism that we refer to as “societal,” and provides a method of responding to the guilt-based reactions of many European Americans to the subject of racism. We examine the “daily indignities” to which people of color are subjected and the additional hurt they feel when those indignities are either denied or blamed on them. Finally, we provide practical methods for European Americans to engage in micro-revolutionary change, using their invisible privilege to interrupt the small-scale, insidious incidents of injustice that pass before their eyes.

Mining Picmet: 1997-2003 Papers Help You Track Management Of Technology Developments, Alan L. Porter, Robert J. Watts, Timothy R. Anderson

Engineering and Technology Management Faculty Publications and Presentations

PICMET is providing the abstracts from 1997, 1999, 2001, and 2003 to enable you to "text mine" the contents of these four conferences. Using VantagePoint reader software (available to PICMET attendees at no charge) allows you to locate specific research abstracts of interest. Text mining helps ascertain "who's doing what, when?" The software also enables you to see larger patterns in management of technology (MOT) research.

Technology Management For Reshaping The World, Dundar F. Kocaoglu, Timothy R. Anderson

Engineering and Technology Management Faculty Publications and Presentations

The world is changing rapidly, and technology is playing the central role in making the changes happen. The events since PICMET '01 have made it clear that every society everywhere in the world is affected not only by the changes, but also by the technology behind them. There are few events in the world today that are not dominated, or at least influenced, by technology. This observation can be explained by recognizing the current period in the history of the world as the "technology era." When technology is properly used and managed, it leads to the reshaping of the world …

Assigning Projects To Project Managers In A Multiple-Project Management Environment: A Pilot Study Of A Decision Support Model, Peerasit Patanakul, Dragan Milošević, Timothy R. Anderson

Engineering and Technology Management Faculty Publications and Presentations

Project assignment is considered one of the most critical project decisions since it influences the performance of projects, and eventually the performance of the organization. Despite its importance, the literature reveals two major gaps on project assignment criteria and methodology. To close these gaps, this study proposes an additional set of project assignment criteria and a systematic methodology for project assignments (DSM). By using the concepts of these case study research combined with a literature review, the important potential criteria for project assignments are identified. These criteria are used in conjunction with the concepts of the analytic hierarchy process (AHP) …

Using Reconstructability Analysis To Select Input Variables For Artificial Neural Networks, Stephen Shervais, Martin Zwick

Systems Science Faculty Publications and Presentations

We demonstrate the use of Reconstructability Analysis to reduce the number of input variables for a neural network. Using the heart disease dataset we reduce the number of independent variables from 13 to two, while providing results that are statistically indistinguishable from those of NNs using the full variable set. We also demonstrate that rule lookup tables obtained directly from the data for the RA models are almost as effective as NNs trained on model variables.

Simulation As A Tool For Evaluating Strategic Policies For Flexible Supply Chain Systems, Janice L. Forrester, Wayne W. Wakeland

Systems Science Faculty Publications and Presentations

The emergence of flexible supply chain systems (FSC) has sparked increased interest in real-time planning, scheduling, and logistics--with particular consideration for strategic implications and overall cost control. Important aspects of an FSC include forecasting, production, materials handling, transportation, and distribution center inventory. There exists a variety of software applications for addressing tactical issues, such as adaptive scheduling, and short term forecasting. However, these programs typically do not permit the user to assess the strategic implications of different policies for flexing capacity and making alternative commitments to manufacturing plants. Recently there has been increased interest in the use of simulation models …

Evolved Reversible Cascades Realized On The Cam-Brain Machine (Cbm), Andrzej Buller, Marek Perkowski

Electrical and Computer Engineering Faculty Publications and Presentations

This paper presents a new approach to reversible cascade evolution based on a 3D cellular automaton. As a research platform we used the ATR's CAMBrain Machine (CBM). Reversible circuits are investigated because they are expected to dissipate much less energy than their irreversible counterparts. One day they will be implemented as nano-scale 3-dimensional chips. A circuit is reversible if the number of its inputs equals the number of its outputs and there is a one-to-one mapping between spaces of input vectors and output vectors. This paper provides: (1) a brief introduction to reversible logic concentrating on definitions and properties of …

A System Dynamics Model Of The Pacific Coast Rockfish Fishery, Wayne Wakeland, Olgay Cangur, Guillermo Rueda, Astrid Scholz

Systems Science Faculty Publications and Presentations

This paper presents a model of the dynamic behavior of the yellowtail rockfish of the Pacific Coast of the United States. The purpose of the model is to generate endogenously the historical data for fish population, fishing vessels, regulatory parameters, and fish harvest. The model was subjected to a variety of tests to determine its sensitivity to changes in key parameters and initial values, including extreme conditions. Model results indicate that acceptable biological catch and fleet capacity must be adjusted quickly in response to changing conditions, in order to improve fishery sustainability. Additional analysis reinforces the policy of setting the …

Printed Email From Hillary To Ernie, Unknown

Ernie Bonner Collection

No abstract provided.