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Faculty Senate Monthly Packet May 1991, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The May 1991 Monthly packet includes the May agenda and appendices and the Faculty Senate minutes and attachments from the meeting held April 1991.

Field-Equation Approximations And The Dynamics Of High-Gain Lasers, Lee W. Casperson

Electrical and Computer Engineering Faculty Publications and Presentations

Semiclassical models for laser-dynamics studies typically incorporate a derivative approximation that reduces the second-order wave equation for the electric field to a first-order equation. It is shown here that this approximation and further frequency approximations are not necessary and may lead to significant errors for some high-gain laser systems. A more exact analysis also reveals a partial decoupling of the electric and magnetic fields that occurs with fast transient phenomena. These ideas are illustrated in terms of well-known dynamical effects.

Double Excitation Of Helium By Fast Particles Of Charge Z, James H. Mcguire, Jack C. Straton

Physics Faculty Publications and Presentations

Results of calculations of double excitation of helium to n=2 states for fast projectiles of charge Z are presented. Nonzero Z³ contributions for single and double excitation occur only when time-ordering contributions from the second-order amplitude are nonzero. For double excitation, electron correlation must also be nonzero to obtain Z³ terms. The time-ordering effects arise from virtual off-energy-shell intermediate states. As with second-order amplitudes for Thomas singularities in electron capture, the energy-nonconserving amplitude is connected to the second-order energy-conserving amplitude by a dispersion relation. Comparison is made with experiment.

The Angler As Environmentalist: Oregon Trout And The Fight To Save The Wild Salmon Of The Columbia River, John P. Rosenberg

Dissertations and Theses

This paper traces the history of Oregon Trout, an environmental organization in Portland, Oregon, from its beginning in the fall of 1983 through the spring of 1990, when it filed petitions on behalf of four stocks of Columbia and Snake River salmon under the Endangered Species Act. It focuses on Oregon Trout's efforts to preserve the wild salmon of the Columbia River as a contemporary example of anglers acting as environmentalists to conserve threatened or endangered species. According to historian John Reiger in American Sportsmen and the Origins of Conservation, hunters and anglers have been acting in this role …

Faculty Senate Monthly Packet February 1991, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The February 1991 Monthly packet includes the February agenda and appendices and the Faculty Senate minutes and attachments from the meeting held January 1991.

Concurrency Control, Version Management And Transactions In Advanced Database Systems, Jonathan Walpole, Muntuck Yap

Computer Science Faculty Publications and Presentations

This document constitutes the final deliverable for the research project titled “An Investigation of Selected Issues in Transaction Mechanism Design for Object Oriented Databases.” The document describes our ideas for extending the traditional transaction concept for use in object oriented databases, and concentrates specifically on providing an underlying model to support the concurrency control and version management aspects of the problem. The ideas presented here are not however restricted to the domain of object oriented databases. They are more generally applicable to database systems that require flexibility in their versioning and concurrency control policies.

In this document we define a …

First-Order Amplitude For General State-To-State Transitions In Hydrogen By Projectile Impact, Jack C. Straton

Physics Faculty Publications and Presentations

The closed analytic form for bound-state transitions due to projectile impact is found in the intermediate representation. The coordinate integral is obtained by evaluating the remaining two integrals in the general multicenter integral derived previously [J.C. Straton, Phys. Rev. A 41, 71 (1990)]. Evaluating the remaining time integral depends upon relating a sum of modified Bessel functions of the second kind K_N+1/2(z) to a simple polynomial in 1/z. The results of Van Den Bos and De Heer [Physica 34, 333 (1967)] are shown to be missing a phase factor of (-i)^(l′+l)

Annual Faculty Senate Minutes October 1991 - June 1992, Portland State University Faculty Senate

Annual Compilations of the Faculty Senate Minutes (Minutes Only)

Minutes of the Faculty Senate for October 1991 to June 1992.

Microscopic Irreversibility And Gibbs Entropy, John D. Ramshaw

Physics Faculty Publications and Presentations

In a recent paper of the same title [J. Non-Equilib. Thermodyn., 15 (1990), 151], Liboff observed that the fine-grained Gibbs entropy of a canonical Hamiltonian system remains constant in time even for Hamiltonians that are not even in momenta and consequently violate time-reversal invariance (TRI). Here we extend this observation to non-canonical Hamiltonian systems, including systems with singular Poisson tensors and pseudo-Hamiltonian systems that violate the Jacobi identity. Necessary and sufficient conditions are given for the Gibbs entropy to be constant in such systems. The concept of TRI is not in general meaningful for such systems, but it is shown …

Spectral Methods For Boolean And Multiple-Valued Input Logic Functions, Bogdan Jaroslaw Falkowski

Dissertations and Theses

Spectral techniques in digital logic design have been known for more than thirty years. They have been used for Boolean function classification, disjoint decomposition, parallel and serial linear decomposition, spectral translation synthesis (extraction of linear pre- and post-filters), multiplexer synthesis, prime implicant extraction by spectral summation, threshold logic synthesis, estimation of logic complexity, testing, and state assignment. This dissertation resolves many important issues concerning the efficient application of spectral methods used in the computer-aided design of digital circuits. The main obstacles in these applications were, up to now, memory requirements for computer systems and lack of the possibility of calculating …

A Descriptive Study Of The Oregon Mentorship Program, Gaynelle Louise Nolf

Dissertations and Theses

The purpose of this study was to provide a comprehensive and descriptive study of the Oregon Mentorship Program. The study examined literature on adult mentorship programs particularly related to education and educational administration, and gathered mentor and protege perceptions on the personal and professional usefulness of program activities and characteristics. The analysis of the data may provide guidance for future formal mentorship programs designed to prepare better beginning administrators in the field of education.

Data were gathered utilizing a questionnaire. All participants in the program (77 mentors and 79 proteges) were surveyed with an instrument designed around the follow-up study …

Development And Analysis Of A Model For Change In The Workplace, Using Quasi-Experimentation With Computer Professionals In Northwestern Investor Owned Utilities, John Ronald Thompson

Dissertations and Theses

Computer professionals have been agents of change in many organizations. In some cases the role inadvertently became theirs as they were the ones at the vanguard of implementing the new information processing technology in organizations. While in other cases they were the catalysts for change, to force new methods/procedures onto lethargic organizations. While introducing change on others in the organization and adapting to new technological changes themselves, the computer professionals have not really had to face a significant change in their status, power, or importance to the organization. The introduction of the personal computer has brought about significant change in …

A Structural Analysis Of Corporate Political Activity: An Application Of Euclidean Modeling To The Study Of Intercorporate Relations, Colleen Bridget Mullery

Dissertations and Theses

During the past two decades business has become increasingly active in the political process, and scholars continue to debate the extent to which this activity is organized. This fundamental issue is addressed by examining corporate political activity within the context of resource dependence and class cohesion theories. Political action committee (PAC) campaign contributions, this study's measure for corporate political activity, are structurally analyzed to determine if either resource dependence or class cohesion theory explains the forces which drive business participation in the U.S. public policy process. The rationale which forty-two diverse corporate PACs exercise when selecting which congressional campaigns to …

Freeway Control Via Ramp Metering: Development Of A Basic Building Block For An On-Ramp, Discrete, Stochastic, Mesoscopic, Simulation Model Within A Contextual Systems Approach, Mohamed Yaser Alkadri

Dissertations and Theses

One of the most effective measures of congestion control on freeways has been ramp metering, where vehicle entry to the freeway is regulated by traffic signals (meters). Meters are run with calibrated influx rates to prevent highway saturation. However, recent observations of some metering sites in San Diego, CA indicate that metering, during peak hour demand, is helping freeway flow while sometimes creating considerable traffic back-ups on local streets, transferring congestion problems from the freeway to intersections. Metering problems stem largely from the difficulty of designing an integrated, dynamic metering scheme that responds not only to changing freeway conditions but …

A Study Of Qualitative Miscue Analysis Scoring Systems For Identification Of Instructional Reading Levels, Sylvia Estelle Dean

Dissertations and Theses

The purpose of this descriptive study was to determine the accuracy and practicality of May's Poor Reader (PR) scoring system for the informal reading inventory (IRI), an individual assessment device designed to determine a student's instructional reading level. The PR is a qualitative scoring system developed by Frank May that examines only two miscues (defaults and meaning-denigrating substitutions) in arriving at an estimate of instructional reading level. The predictor variable, PR, was compared for accuracy and practicality with five other predictor variables consisting of four traditional quantitative scoring systems and an additional qualitative system of May's; PR was also compared …

A Mathematical Model For Outgassing And Contamination, W. Fang, M. Shillor, E. Stahel, E. Epstein, C. Ly, J. Mcniel, Edward D. Zaron

Civil and Environmental Engineering Faculty Publications and Presentations

A model for the mathematical description of the processes of outgassing and contamination in a vacuum system is proposed. The underlying assumptions are diffusion in the source, convection and diffusion in the cavity, mass transfer across the source-cavity interface, and a generalization of the Langmuir isotherm for the sorption kinetics on the target. Three approximations are considered where the asymptotic behavior of the model for large time is shown as well as the dependence and sensitivity of the model on some of the parameters. Some numerical examples of the full model are then presented together with a proof of the …

Creative Drama As An Instructional Strategy In Adult Christian Education, Darlene Richards Graves

Dissertations and Theses

This study reviews the tenents of adult learning. Christian education and creative drama and presents the observation that there are parallel objectives in each of these three major areas. Noting that creative drama is rarely used in adult Christian education, which is primarily cognitive-based and lecture-discussion oriented, the study proposes the application of creative drama strategies to provide an alternative experiential learning process and therefore create a drama strategies to provide an alternative experiential learning process and therefore create a balance of focus between cognitive, affective, reflective and active learning styles in adult Christian education. It also suggests that through …

Transient Heat Transfer, Eric Roth

Dissertations and Theses

With the advent of the new high Tc superconductors, liquid nitrogen will be one of the preferred cryogens used to cool these materials. Consequently, a more thorough understanding of the heat transfer characteristics of liquid nitrogen is required. In our investigations we examine the transient heating characteristics of liquid nitrogen to states of nucleate and film boiling under different liquid flow conditions. Using a platinum hot wire technique, it is verified that there is a premature transition to film boiling in the transient case at power levels significantly lower than under steady state nucleate boiling conditions. It is also shown …

Perception And Power, Marisela F. Nyoka

Anthós Journal (1990-1996)

In Virgil’s Aeneid, the hero is epic enough but is importantly different enough from the tradition of the Greek epic hero to warrant investigation. At the crux of it is that Virgil utilizes a Roman approach to the Greek cosmos. Thus the hero reflects the political changes and moods of the times. This paper traces how Virgil’s use of language constructs this Roman vision of the Greek cosmos. In the end it suggests that humans in Virgil’s world have a greater task than they did before and that only the pious will survive.

Late Holocene Paleoseismicity Along The Northern Oregon Coast, Mark Edward Darienzo

Dissertations and Theses

Marsh paleoseismological studies were conducted in four bays (Necanicum, Nestucca, Siletz, and Yaquina) along the northern Oregon coast and compared with completed studies in two other bays (Netarts and Alsea). Coseismically buried peats were identified in all bays, based on 1) abrupt contacts, decreases in organic content, increases in sand content, increases in beach sand, and changes in diatom assemblages, all from the peat to the overlying sediments, 2) distinct sandy layers and key plant macrofossils, such as Triglochin, above the buried peat, and 3) widespread correlation of the buried peats within the bay. The stratigraphy and the ages and …

Steady State Analysis Of Tropospheric Chemistry, Wen Hsiung Pan

Dissertations and Theses

Hydroxyl radical HO plays a central role in controlling chemical processes in the troposphere. Current mechanisms are believed to accurately describe its formation, destruction and interaction with other atmospheric trace gases in clean air. Hydroperoxyl radical H0₂ is Iinked to HO in several chain processes and serves among other roles as a reservoir for HO. The relative concentration (H0₂/HO) in clean air is believed to be the order of 10². We here examine the conditions under which steady-state kinetics apply to HO₁ chemistry and derive simple relationships which can be used to predict HO and H0₂ concentration from measurable concentrations …

Programs For At-Risk Students In The Washington County (Oregon) Schools: A Policy Study, John Young

Dissertations and Theses

This study develops recommendations for school district administrators and policy makers regarding policies and programs for students at risk of school failure. The study develops a descriptive picture of policies and programs for at-risk students in Washington County school districts and evaluates those policies and programs against criteria for effective policies and programs in order to understand the degree to which such policies and programs implemented in Washington County school districts correspond to criteria associated with effective practices reported in the literature. The study identifies 23 such criteria and numerous indicators associated with each. Data collection, analysis and evaluation were …

Faculty Senate Monthly Packet January 1991, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The January 1991 Monthly packet includes the January agenda and appendices and the Faculty Senate minutes and attachments from the meeting held December 1990.

Oscillation Frequency In High-Gain Lasers, Lee W. Casperson

Electrical and Computer Engineering Faculty Publications and Presentations

The calculation of the oscillation frequency of a single-mode laser oscillator is examined systematically. Mode-pulling formulas are developed for a variety of laser systems, and the limitations of a standard approximation are explored.

Faculty Senate Monthly Packet December 1990, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The December 1990 Monthly packet includes the December agenda and appendices and the Faculty Senate minutes and attachments from the meeting held November 1990.

Faculty Senate Monthly Packet November 1990, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The November 1990 Monthly packet includes the November agenda and appendices and the Faculty Senate minutes and attachments from the meeting held October 1990.

Report On Ballot Measure 11 School Choice System, Tax Credit For Education Outside Public Schools, City Club Of Portland (Portland, Or.)

City Club of Portland

No abstract provided.

Third-Generation Fage Instrument For Tropospheric Hydroxyl Radical Measurement, C. Y. Chan, Thomas M. Hard, A. A. Mehrabzadeh, Robert J. O'Brien

Environmental Science and Management Faculty Publications and Presentations

The authors have constructed a single-stage, frequency-doubled, copper vapor laser-pumped dye laser to be used in the measurement of atmospheric hydroxyl radical concentrations. This laser can be tuned to either the 1← 0 or 0← 0 vibrational transition in the electronic transition ²Sigmalarr²Pi. A new photon counting instrument is used for HO fluorescence detection. Theoretical and experimental studies of instrument performance show better sensitivities and reduced photolytic interferences than have been possible with previous systems based upon Nd:YAG pumping.

Gravitational Synchrotron Radiation From Cosmic Strings, Alan Cresswell, Robert L. Zimmerman

Physics Faculty Publications and Presentations

This work studies the gravitational synchrotron radiation emitted from arbitrary cusps of cosmic strings. The results are expressed in terms of four parameters describing the motion of such a cusp. The power spectrum is derived for cusps moving at unit velocity. By using a phenomenological approach the authors also derive the power emitted when the radiation reaction on the cusps is taken into account. In both cases, the synchrotron nature of the radiation produces a power spectrum emitted in a narrow forward cone. If cosmic strings do exist, the radiation emitted by their cusps would seem to be a potential …

Faculty Senate Monthly Packet October 1990, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The October 1990 Monthly packet includes the October agenda and appendices and the Faculty Senate minutes and attachments from the meeting held June 1990.