Digital Commons Network^™

Generalized Beam Matrices. Iii. Application To Diffraction Analysis, Lee W. Casperson, Anthony A. Tovar

Electrical and Computer Engineering Faculty Publications and Presentations

In analogy with Huygen’s wavelets a new method based on Gaussian beamlets is used to develop a conventional diffraction integral formalism for paraxial optical systems representable by complex 2×2 ABCD Gaussian beam matrices. This method, along with a new phase parameter transformation, is then used to produce a new diffraction integral for studying the propagation of light beams with arbitrary spatial profiles through much more general misaligned complex optical systems representable by 3×3 ABCDGH beam matrices.

Ecological Economics: Reintegrating The Study Of Humans And Nature, Robert Costanza

Institute for Sustainable Solutions Publications and Presentations

Ecological economics is a transdisciplinary effort to link the natural and social sciences broadly, and especially ecology and economics. The goal is to develop a deeper understanding of the complex linkages between ecological and economic systems, and to use that understanding to develop effective policies that will lead to a world that is ecologically sustainable, has a fair distribution of resources (both among groups and generations of humans and between humans and other species), and efficiently allocates scarce resources including natural capital. This will require new approaches that are comprehensive, adaptive, integrative, multi-scale, and pluralistic, and that acknowledge the huge …

Multimedia Applications Require Adaptive Cpu Scheduling, Veronica Baiceanu, Crispin Cowan, Dylan Mcnamee, Calton Pu, Jonathan Walpole

Computer Science Faculty Publications and Presentations

CPU scheduling and admission testing for multimedia applications have been extensively studied, and various solutions have been proposed using assorted simplifying assumptions. However, we believe that the complexity and dynamic behavior of multimedia applications and systems make static solutions hard to apply in real-world situations. We are analyzing the difficulties that arise when applying the rate-monotonic (RM) scheduling algorithm and the corresponding admission tests for CPU management, in the context of real multimedia applications running on real systems. RM requires statically predictable, periodic workloads, and while multimedia applications appear to be periodic, in practice they exhibit numerous variabilities in workload. …

Meeting Notes 1996-10-10 , Joint Policy Advisory Committee On Transportation

Joint Policy Advisory Committee on Transportation

No abstract provided.

Impact Of Groundwater Contamination In East Multnomah County On The Interlachen Community, Scott A. Wells, Shuguang Li, Marvin Beeson, Michael L. Cummings, Richard Pratt, Robert Leslie Annear, Karann Brandt

Civil and Environmental Engineering Faculty Publications and Presentations

The Friends of Blue and Fairview Lake through the Environmental Protection Agency (EPA) Technical Assistance Grant (TAG) program contracted with Portland State University faculty and staff to provide an independent review of the groundwater contamination problem at the Boeing-Cascade site in East Multnomah County. An independent consultant, Karann Brandt, of PRC Environmental Management, Inc., was also assisting the panel with the review.

The region of groundwater contamination is a 2.5 square mile region bounded by NE Halsey Blvd. to the Columbia River and NE 178th to NE 223rd (see Figure 1). The groundwater contamination is primarily of volatile organic compounds …

Meeting Notes 1996-09-12 , Joint Policy Advisory Committee On Transportation

Joint Policy Advisory Committee on Transportation

No abstract provided.

City Club Of Portland Report: Billboard Regulation In Portland, City Club Of Portland (Portland, Or.)

City Club of Portland

No abstract provided.

Beyond The Field Of Dreams: Light Rail And Growth Management In Portland, G. B. Arrington Jr., Tri-County Metropolitan Transportation District Of Oregon

TriMet Collection

No abstract provided.

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: After a decade and a half without men’s basketball, the team is back playing Division I in the Big Sky Conference; as the high-tech industry in Oregon prospers, higher education is looking to catch up; an entire graduate program, including faculty and students, has moved from Lewis & Clark to PSU; Jim Aalberg ’72 left the mergers, downsizing, and buyouts of the banking industry to join Fred Meyer Inc.; Portland Public Schools may open its first new grade school in more than 20 years on PSU’s campus; and more.

Neotraditional Design: Resisting The Decentralizing Forces Of New Spatial Technologies, Kenneth Dueker, Martha J. Bianco

Center for Urban Studies Publications and Reports

The New Urbanist, or Neotraditional, movement that has characterized urban planning since the beginning of the 1990s has a vision of how people should live, work, and travel in a manner that, planners believe, will be "best" for society and for the environment. At the core of this vision is the notion that a return to the high densities, architectural form, and lifestyle of the period prior to World War II will result in a better society. A question that is ignored by the neotraditional proposals is the extent to which changing technologies might make calls for higher densities obsolete. …

Design And Implementation Of A Model For Authoring And Presenting Interactive Multimedia Documents, Vibha Mukul Nayyar

Dissertations and Theses

Multimedia technology enables direct manipulation of multiple media such as text, image, audio, and video, all integrated into one entity - the multimedia document. Interactive multimedia documents integrate text, images and continuous media such as audio and video, treat them as objects to be presented for a certain duration, and allow users to interact with the presentation. Authoring and presenting interactive multimedia documents imposes new requirements on document representation. We designed the interactive timeline model (ITM) for authoring and presenting interactive multimedia documents. We implemented the model and created a playback tool using the scripting language Tcl.

ITM uses an …

Evaluation Of A Rapid-Screening Toxicity Test Using The Ciliate, Colpoda Inflata (Stokes): Sensitivity And Bioavailability To Model Compounds, Daria Galina Mochan

Dissertations and Theses

Standard toxicity tests often require high costs for maintaining healthy cultures, so few test species are employed in routine ecotoxicological analysis. An alternative is the "battery of tests" approach involving using rapid toxicity tests for screening. Rapid-screening toxicity tests must display organism sensitivity, similarity in responses to other test organisms, relevancy to many circumstances, and repeatability. Protozoa are ideal candidates for rapid-screening bioassays. They are cosmopolitan, play important roles in ecosystems, and have high reproductive rates. Many protozoa can form a resting stage (cyst) that remains viable during adverse conditions, eliminating the need for maintaining continuous cultures for testing.

The …

La Perspectiva Indigenista Y Neoindifenista De Huasipungo Y Porque Se Fueron Las Garzas, Laura Bergman

Dissertations and Theses

El indio siempre ha sido un objeto importante en la literatura latinoamericana. Este referente indf gena ha pasado par un proceso evolutivo: el indianista y el neoindigenista (Marcos 445). Dentro del ultimo se desarrolla una tendencia llamada neoindigenismo (Rodriguez-Luis 46). El prop6sito de esta tesis es analizar la perspectiva indigenista y neoindigenista de las novelas Huasipungo y Porque se fueron las garzas par media del tratamiento de sus protagonistas y del lenguaje coma instrumento de la . representaci6n autentica de las culturas que se describen en estas obras. El enfoque en Huasipungo es mas institucional que el de Porque se …

Wearing A Dead Man's Jacket: State Symbols In Troubled Places, Michele Ruth Gamburd

Anthropology Faculty Publications and Presentations

A village rumor concerning the attempted theft of a uniform from the corpse of a Sri Lankan army soldier supplies the subject matter for this paper. In May 1993, soon after the assassination of President Ranasinghe Premadasa, a spectacular local funeral for a Low Country Sinhalese soldier killed in the civil war near Trincomalee provided a space for the display of state symbols, the voicing of patriotic rhetoric, and the exhibition of the precision and discipline of the national army. Military pageantry legitimated the use of force by the government, while the funeral ritual as a whole produced a catharsis …

Scattering Properties Of Dense Media From Monte Carlo Simulations With Application To Active Remote Sensing Of Snow, Lisa M. Zurk, L. Tsang, Dale P. Winebrenner

Electrical and Computer Engineering Faculty Publications and Presentations

Monte Carlo simulations are used to derive the phase matrix, effective permittivity, and scattering coefficient for a random medium consisting of densely packed spheres up to 5000 in number. The results include correlated scattering and coherent wave interaction among the scatterers. The Monte Carlo simulations are based on a multiple-scattering formulation of the Foldy-Lax equations. It is shown that the derived phase matrix is in good agreement with dense media radiative transfer theory for copolarized scattering. The depolarization, however, can be substantially larger than conventional theory. Two methods are used to analyze the behavior of the coherent wave to obtain …

Meeting Notes 1996-06-13 , Joint Policy Advisory Committee On Transportation

Joint Policy Advisory Committee on Transportation

No abstract provided.

Seed Pods, Bases And Formalism: An Artist's Journey, Craig Luster

Dissertations and Theses

A sculpture can offer visual information that is simple or complex. The work can present only a single facet to ponder or deal with all facets equally polished and linked. There can be enough information to arrange in an order that reads as narrative. All is possible but, without question, the more complex the sculpture, the more information given, the greater the challenge to the artist to make a coherent and interesting whole of everything being presented. The body of work presented in my thesis show represents the outcome of exploring a chain of questions about sculpture. The first question …

Faculty Senate Monthly Packet June 1996, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The June 1996 Monthly packet includes the June agenda and appendices and the Faculty Senate minutes and attachments from the meeting held May 1996.

The Leadership Of African American Women Constructing Realities, Shifting Paradigms, Gloria Murphy Gostnell

Dissertations and Theses

The purpose of this qualitative study was to learn more about leadership from the perspectives, norms, and values of a selected group of African American women leaders. I sought to develop a more inclusive view of the realities of leadership, and a better understanding of the impact of the interlocking status of race, gender, and social class on the practice, pursuit, and perceptions of leadership by these women.

This study is grounded in a Black women's standpoint, and places Black women's experiences at the center of analysis. In answer to the question "How do we know the world?," the standpoint …

Meeting Notes 1996-05-09 , Joint Policy Advisory Committee On Transportation

Joint Policy Advisory Committee on Transportation

No abstract provided.

Distribution Of Ionized And Neutral Halogenated Phenols In An Octanol-Water Membrane Model System, Robert Word

Dissertations and Theses

The accumulation of xenobiotics, such as halogenated phenols, in soils, sediments, and living organisms is primarily a partitioning process between an aquatic and organic phase. It is traditional to use a bulk octanol-water system to model the partitioning of a compound between complex biological lipid membranes and aqueous media. The octanol-water partition coefficient K_OW successfully approximates the lipid membrane-water partition coefficient K_LipW of neutral compounds. However, the ionized species of substituted phenols were shown to have a higher affinity for lipid membranes than predicted from octanol-water results.

Data on the octanol-water partition coefficients of molecular ions is limited. …

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: Halfway between infancy and adulthood lie life’s most confusing years—adolescence; Professor Gordon Dodds tells an American tale of rebirth and second chances; alumni share their memories of Portland State in celebration of the university’s 50th anniversary; the new Center for Academic Excellence dismantles tradition in order to boost teaching skills; a PSU prof is finding new links between genes and addiction; PSU salutes friends, faculty, and alumni who have made a difference to the university and the community; and more.

Faculty Senate Monthly Packet May 1996, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The May 1996 Monthly packet includes the May agenda and appendices and the Faculty Senate minutes and attachments from the meeting held April 1996.

City Club Of Portland Report: Planning For Urban Growth In The Portland Metropolitan Area, City Club Of Portland (Portland, Or.)

City Club of Portland

No abstract provided.

Output-Based Performance Measures For The North Carolina Office Of Waste Reduction, Sheila A. Martin, James R. Youngberg, Albert D. Bethke

Institute of Metropolitan Studies Publications

Research Triangle Institute (RTI) conducted this study to provide the foundation for implementing a results-based performance measurement system. RTI designed a system for NC OWR and similar state waste reduction outreach programs in EPA’s Region 4 that will collect, analyze, report, and maintain the output-based performance measures needed to manage the system, to monitor program scope and effectiveness, and to report to managers and key stakeholders on the program’s success in accomplishing its 0bjectives. Key questions we have addressed in this study include the following:

What is the current best practice for collecting and analyzing information about the effectiveness of …

City Club Of Portland Report: The Initiative And Referendum In Oregon, City Club Of Portland (Portland, Or.)

City Club of Portland

No abstract provided.

Meeting Notes 1996-02-08 , Joint Policy Advisory Committee On Transportation

Joint Policy Advisory Committee on Transportation

No abstract provided.

Meeting Notes 1996-01-11 , Joint Policy Advisory Committee On Transportation

Joint Policy Advisory Committee on Transportation

No abstract provided.

Typologies Of Homeless Youth, Orion Isis Gray

Anthós Journal (1990-1996)

This paper is a shortened version of Gray’s thesis.

Typologies of homeless youth help researchers and service providers understand who they are working with. However, most of the work on "homeless and runaway youth," as they are often referred to, does not take into account the subtypes within this vast population. Instead of taking such distinctions for granted, this paper focuses on them. The different sections of the paper define and examine these different subtypes. By the conclusion of the thesis, the reader should be able to form an educated opinion on the utility of some of the different typologies …

Organizational Responses To Educational Telecommunications Policy In Three States: Oregon, Colorado, And Utah, Kathi Arlene Ketcheson

Dissertations and Theses

Prior research on statewide educational telecommunications has focused on cataloging initiatives in various states, describing activities in individual states, or in exploring telecommunications policy from a planning-level perspective. In these studies, it is recognized that policies and implementation behaviors vary across individual states; however, a theoretical basis for how and why policy and implementation models differ among states has not been provided. Research also suggests that many states are moving toward the adoption of successful models from other states, and that there is a need for policy research to assist states in developing policies. This dissertation attempts to apply the …