Digital Commons Network^™

Development And Validation Of A Work Safety Compliance Measure, Tara L. Smecko

Dissertations and Theses

It is important that organizations manage the safety behavior of employees by the implementation of a safety program including periodic assessment of the safety level (i.e., how frequently employees are complying with safety guidelines) in the organization. The occupational safety literature lacks sufficient assessment tools for measuring employee safety behavior.

The purpose of the present study was to develop and validate a comprehensive measure of compliance with safety behavior guidelines in the form of a questionnaire that can be utilized across industries and occupations. The research objectives for the present study were to: 1) Perform factor analysis on the safety …

Meeting Notes 1998-03-12 [Part A] , Joint Policy Advisory Committee On Transportation

Joint Policy Advisory Committee on Transportation

No abstract provided.

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

Faculty Senate Monthly Packets

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

Transit Time Internet Access, Janet Vorvick, Kenneth Dueker

Center for Urban Studies Publications and Reports

Transit Time Internet Access (TTIA) is a World Wide Web (WWW) application which delivers real-time bus schedule information to users of the Internet. TTIA allows a bus rider to request and receive schedule deviation information about a specific bus at a specific timepoint. This report explains the design of TTIA, the specifics of the implementation, the issues of scope, the problems that were encountered and some conclusions.

Field Solutions For Bidirectional High-Gain Laser Amplifiers And Oscillators, Lee W. Casperson, Mohammad Azadeh

Electrical and Computer Engineering Faculty Publications and Presentations

General analytical solutions are obtained for the amplitude, phase, and intensity of the electromagnetic waves in bidirectional homogeneously broadened high-gain laser amplifiers and oscillators. These solutions are important as increasingly high-gain lasers are being employed in practical systems. Expressions are derived relating the output power to the input, including the effects of arbitrary mirror reflectivities and frequency detunings from the line center. For negligible reflectivities, these regenerative amplifier results reduce to earlier expressions for single-pass high-gain amplifiers. Multivalued outputs also occur, and in the limit of low gain per pass the results are consistent with earlier studies of single-frequency laser …

Meeting Notes 1998-02-12 , Joint Policy Advisory Committee On Transportation

Joint Policy Advisory Committee on Transportation

No abstract provided.

Rudolf Steiner's Theory Of Foreign Language Learning, Michaela Wolf Hashitani

Dissertations and Theses

Rudolf Steiner is best known as the founder of the philosophical movement Anthroposophie and as the ideological father of Waldorf schools. The Waldorf school program follows Steiner's education principles in that it teaches children to explore their world with all senses. The goal of Waldorf education is to help children develop their soul and spirit in order to become a conscious, mature adult. Waldorf schools introduce two foreign languages at grade one in order to raise world-awareness in children and young adults.

This study reviews Steiner's biographic background until the opening of the first Waldorf school. It highlights Steiner's spiritual …

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

Faculty Senate Monthly Packets

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

Illegal Drug Use During Pregnancy: The Effects Of Defendant Race And Type Of Defense On Juror Judgments Of Guilt, Anita Rotondo

Dissertations and Theses

Since the early 1980s fetal harm "caused" by women's illegal drug use during pregnancy has garnered public attention and legal scrutiny. Motivated by concerns over fetal health, the cost of caring for drug-addicted infants, and public support for get tough on crime policies, various states have employed statutes on child abuse, neglect or endangerment, delivering a controlled substance to a minor and contributing to the delinquency of a minor to criminally inculpate maternal drug users.

Utilizing a written hypothetical trial summary in which a woman was charged with child abuse for using cocaine while pregnant, this research explored the effects …

An Evaluation Of A Staff Mentor Program For At-Risk Students In An Oregon High School: Cake (Caring About Kids Effectively), Gail Lenore Hayes

Dissertations and Theses

This study examined the effect of a staff-mentoring program with students identified as at-risk of becoming early leavers. This mentoring program, Caring About Kids Effectively (CAKE), was implemented at a suburban secondary school in Oregon serving grades 9 through 12.

The study of the CAKE program had four research components: (a) indicators of school success (GPA, attendance, and attitudes toward school) were compared between at-risk students and those not at-risk; (b) indicators of school success were analyzed over the time at-risk students were mentored to find any significant change; (c) indicators of school success and enrollment status at graduation was …

Rtl Power Estimation Of Sequential Circuits, Sridhar Muthrasanallur

Dissertations and Theses

Power consumption has become a major concern in the electronic industry in recent years because of the increased demand for portable electronic devices. Part of the problem in power conscious design is accurate power estimation. Power estimation at low-levels of design abstraction is slow since the units of low-levels of design abstraction are transistors or gates. But designers need reliable power estimates early in the design process. Therefore designers need to have tools for fast and accurate power estimation at higher levels of design abstraction such as the Register Transfer Level (RTL).

This thesis introduces a new method for RTL …

Enculturing Nature, William Lloyd Cornett

Dissertations and Theses

Human activity is embedded within a myriad of seldom-acknowledged ecological relationships. Anthropology and ecology, two holistic disciplines concerned with these activities, struggle with the topic of human/nature relationships because both are grounded within larger western discourses separating human behaviors from those of the natural world. This thesis examines the histories of anthropology and ecology in the 20th Century, and the effect these disciplines have had upon the formulation of contemporary urban worldviews that are based upon the separation of humans from nature.

The Design Of Cube Calculus Machine Using Sram-Based Fpga Reconfigurable Hardware Dec’S Perle-1 Board, Qihong Chen

Dissertations and Theses

Presented in this thesis are new approaches to column compatibility checking and column-based input/output encoding for Curtis decompositions of switching functions. These approaches can be used in Curtis-type functional decomposition programs for applications in several scientific disciplines. Examples of applications are: minimization of combinational and sequential logic) mapping of logic functions to programmable logic devices such as CPLDs, MPGAs, and FPGAs, data encryption, data compression, pattern recognition) and image refinement. Presently, Curtis-type functional decomposition programs are used primarily for experimental purposes due to performance, quality, and compatibility issues. However) in the past few years a renewal of interest in the …

University Studies 1994-1997: A Progress Report, Portland State University. General Education Working Group

University Studies Assessment Research

Broadly reports on the state of implementing University Studies, reviewing consequences for the University, faculty, and students.

Annual Faculty Senate Minutes October 1998 - June 1999, Portland State University Faculty Senate

Annual Compilations of the Faculty Senate Minutes (Minutes Only)

Minutes of the Faculty Senate for October 1998 to June 1999.

Bulletin: General Catalog Issue 1998-1999, Portland State University

Bulletin & Curriculum Change Documents

No abstract provided.

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

Faculty Senate Monthly Packets

The January 1998 Monthly packet includes the January agenda and appendices and the Faculty Senate minutes and attachments from the meeting held December 1997.

Filtration Modeling Of A Plate-And-Frame Press, Scott A. Wells

Civil and Environmental Engineering Faculty Publications and Presentations

The porosity distribution and filtrate production during cake filtration in a plate-and-frame filter press were simulated mathematically. The model considered filtration that occurs after the filling process, not filtration that occurs as the suspension fills the cell. Governing equations for the temporal porosity distribution were developed for a plateand- frame press. The governing equations were solved numerically using an alternating-direction-implicit scheme. Appropriate initial and boundary conditions were determined based on characteristics of the plate-and-frame press and of the suspension properties. Predicted porosity and velocity distributions were calculated for assumed constitutive parameters.

Gravity Drainage Prior To Cake Filtration, Scott A. Wells, Gregory K. Savage

Civil and Environmental Engineering Faculty Publications and Presentations

During the initial stages of a Buchner funnel or specific resistance test, gravity drainage occurs prior to application of the pressure differential. Some allow time for a small cake to form by gravity drainage. Filtrate data from the gravity drainage period can be used to determine constitutive properties of the cake under a hydrostatic pressure gradient. The constitutive properties that define the structure of the cake include the permeability and porosity as functions of the applied stress. Equations governing the drainage rate during a gravity filtration experiment assuming a constant and a non-constant average cake permeability and cake porosity were …

Modeling Density Currents In Circular Clarifiers, Scott A. Wells, David M. Laliberte

Civil and Environmental Engineering Faculty Publications and Presentations

Design of sedimentation tanks for solid-liquid separation is often dependent on assuming ideal flow conditions. But the geometry of the tank and density currents as a result of temperature and suspended solids influences the fluid mechanics of the tank and can result in significant deviations from ideal flow.

A two-dimensional radial flow model was proposed which incorporated the effect of density currents resulting from temperature and suspended solids differentials within the tank. The numerical model predicted the steady-state, layer-averaged radial flow and layer depth.

The model solution and field data showed that the momentum and suspended solids of the inflow …

Stackguard: Automatic Adaptive Detection And Prevention Of Buffer-Overflow Attacks, Crispin Cowan, Calton Pu, David Maier, Heather Hinton, Jonathan Walpole, Peat Bakke, Steve Beattie, Aaron Grier, Perry Wagle, Qian Zhang

Computer Science Faculty Publications and Presentations

This paper presents a systematic solution to the persistent problem of buffer overflow attacks. Buffer overflow attacks gained notoriety in 1988 as part of the Morris Worm incident on the Internet. While it is fairly simple to fix individual buffer overflow vulnerabilities, buffer overflow attacks continue to this day. Hundreds of attacks have been discovered, and while most of the obvious vulnerabilities have now been patched, more sophisticated buffer overflow attacks continue to emerge.

We describe StackGuard: a simple compiler technique that virtually eliminates buffer overflow vulnerabilities with only modest performance penalties. Privileged programs that are recompiled with the StackGuard …

Adaptive Prefetching For Device-Independent File I/O, Dan Revel, Dylan Mcnamee, David Steere, Jonathan Walpole

Computer Science Faculty Publications and Presentations

Device independent I/O has been a holy grail to operating system designers since the early days of UNIX. Unfortunately, existing operating systems fall short of this goal for multimedia applications. Techniques such as caching and sequential read-ahead can help mask I/O latency in some cases, but in others they increase latency and add substantial jitter. Multimedia applications, such as video players, are sensitive to vagaries in performance since I/O latency and jitter affect the quality of presentation. Our solution uses adaptive prefetching to reduce both latency and jitter. Applications submit file access plans to the prefetcher, which then generates I/O …

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: The six galleries on campus display local and national art—they also do great First Thursdays; help your child become a good speller. Plus, take a test to determine your own spelling aptitude; the food industry is finding new ways of doing business with the help of a PSU management program; when a company needs turning around, Renee Fellman is the specialist a history journal of the Pacific Rim is right at home in Cramer Hall; and more.

Will Business-Led Environmental Initiatives Grow In Agriculture?, Sandra S. Batie, David E. Ervin

Economics Faculty Publications and Presentations

This article was stimulated by a 1997 American Agricultural Economics Association annual meeting preconference designed by Batie and Ervin. The authors felt that there was considerable interest and activity in business-led environmental management (also caLLed corporate environmental management)-but most of the interest was found outside of the agricultural sector and the profession. The conference was a means to investigate the extent, motivation, and consequences of business-led poLLution prevention activities. The DuPont and the StahLbush Island Farms examples used in this article were drawn from discussions that took place at the conference and which were published in the proceedings. In the …

Parking In Northwest: Finding A Spot In A Mix-Use Community, Scott Bricker, Colin Cooper, Jason Gately, Tim Swope

Master of Urban and Regional Planning Workshop Projects

The purpose of this study is to ground the Office of Neighborhood Involvement (ONI) facilitator in the nature of parking issues relevant to Northwest. A comprehensive examination of parking in Northwest will include a review of past efforts, an analysis of the parking-supply and demand, and a detailed review of program and policy alternatives that may be applied in Northwest. The research has two primary goals: 1) is to provide objective data that will be acceptable to both the Northwest District Association (NWDA) and Nob Hill Business Association (NHBA) and 2) to provide policy analyses to ground stakeholders in parking …

A Proposed Method Of Transportation Feature Identification, J. Allison Butler, Kenneth Dueker

Center for Urban Studies Publications and Reports

Geographic information systems (GIS) are being increasingly deployed by transportation agencies to help them display, review, and utilize data. The primary items of interest are transportation facilities and services, which may take the form of highways, airports, bus routes, and seaports, among others. Using GIS software, transportation facilities are represented as geometric shapes; i.e., points, lines, and areas. However, it is increasingly apparent to GIS users in the field of transportation that a geometry-based approach is not sufficient.

The offered solution is to develop a feature-based GIS approach for transportation. The central requirement of such an approach is to have …

Consistent Estimation Of Faculty Rank Effects In Academic Salary Models, James G. Strathman

Center for Urban Studies Publications and Reports

Faculty rank is often included as an explanatory variable in academic salary models. Because there is reason to believe that this results in specification bias, rank effects should be estimated endogenously in salary models. A salary model in which faculty rank is endogenous is estimated in this paper and the results are compared with those obtained from a conventionally specified alternative.

Few-Cycle Pulses In Two-Level Media, Lee W. Casperson

Electrical and Computer Engineering Faculty Publications and Presentations

Techniques for producing, measuring, and applying ever shorter electromagnetic pulses are being developed for incorporation in a variety of modern high-speed systems. In many cases these pulses are at most a few cycles in length, and so-called half-cycle electromagnetic pulses are also widely employed. The interaction of such pulses with two-level media is considered here in detail, and these media are basic to many of the absorbing and amplifying configurations of optics and laser studies. Significant delays and distortion of the resulting polarization and population pulses can occur, and nonlinear optical effects are also revealed. The limitations of the parity, …

Exact Graph Coloring For Functional Decomposition: Do We Need It?, Marek Perkowski, Rahul Malvi, Lech Jozwiak

Electrical and Computer Engineering Faculty Publications and Presentations

Finding column multiplicity index is one of important component processes in functional decomposition of discrete functions for circuit design and especially Data Mining applications. How important it is to solve this problem exactly from the point of view of the minimum complexity of decomposition, and related to it error in Machine Learning type of applications? In order to investigate this problem we wrote two graph coloring programs: exact program EXOC and approximate program DOM (DOM cab give provably exact results on some types of graphs). These programs were next incorporated into the multi-valued decomposer of functions and relations NVGUD. Extensive …

Multi-Level Programmable Arrays For Sub-Micron Technology Based On Symmetries, Marek Perkowski, Malgorzata Chrzanowska-Jeske, Yang Xu

Electrical and Computer Engineering Faculty Publications and Presentations

Regular layout is a fundamental concept in VLSI design which can have application in custom design for submicron technologies, designing new architectures for fine-grain Field Programmable Gate Arrays (FPGAs) and Electrically Programmable logic Devices (EPLDs), and minimization of logic functions for existing FPGAs. PLAs are well known examples of regular layouts. Lattice diagrams are another type of regular layouts that have been recently introduced for layout-driven logic synthesis. In this paper we extend and combine theses two ideas, by introducing the multi-level PLA-like structures, composed from multi-output (pseudo) symmetrical lattice planes and other planes (multi-input, multi-output regular blocks). The main …