Digital Commons Network^™

"The Ore Plan: A Practical Application Of The Systems Approach To Solid Waste Management In Oregon", Richard Duncan

Special Collections: Oregon Public Speakers

No abstract provided.

"The Curious Behavior Of Complex Systems: Lessons From Biology", Heinz Von Foerster

Special Collections: Oregon Public Speakers

No abstract provided.

"Education For Managing Complexity", Harold A. Linstone

Special Collections: Oregon Public Speakers

No abstract provided.

"A Philosophy For Complexity", Charles West Churchman

Special Collections: Oregon Public Speakers

No abstract provided.

The Teaching Of History In The Secondary Schools Of Australia, Richard Townley Blaine

Dissertations and Theses

Australian students terminating their secondary education with completion of Form Four provided the major stimulus during the last decade for new curriculum developments in an organized study of man. To provide these fifteen-year old pupils with the necessary exposure to life for social adjustment underscored the debate between many social scientists and history teachers on the ability of their respective subject's focus.

Where in the middle of the last decade Australia found herself in the middle of a communication revolution, many students, ending their educations during mid-adolescence, did not finish the normal sequence of history courses. History's dominance in the …

Solving The Metro Traffic Dilemma: Summary Of And Supplement To Volume I, Factual Data Report , Portland-Vancouver Metropolitan Transportation Study. Technical Advisory Committee. Sub-Committee On Public Information

Portland Regional Planning History

Volume 1 presents data describing traffic conditions and patterns on an average weekday in 1960 and identifies the current trends and the factors which best indicate these trends.

Assessment Of Short Term Behavioral Changes In Emotionally Handicapped Children Enrolled In A Special Education Program, James S. Johnston, Karen Shilling

Dissertations and Theses

This study attempts to assess short term behavioral changes, as measured by the Hewett Behavioral Checklist in emotionally handicapped children enrolled in three of the special education classrooms.

Rain Monthly Newsletter Of Eco Net, Eco-Net

RAIN: Journal of Appropriate Technology

Volume 1, Number 4

RAIN began in October 1974 as a publication of ECO-NET, an environmental education network funded by the Hill Foundation and an Environmental Education grant. Its office was based in the Environmental Education Center at Portland State University. With a focus on the Pacific Northwest, particularly Oregon, RAIN originally described itself as a “bulletin board” with an “emphasis on environmental/energy related and communications kinds of information” and interested in “the evolutionary possibilities of inter-disciplinary connections.”

Marx On Population: A Critical Review Including A Comparison To Malthus And A New Perspective On Marx, David Orval Jermain

Dissertations and Theses

A critical review of Marx on population is made to determine if the modern Marxist population thepry can validly claim to follow from Marx. An historical review of population thought from the Greeks to Malthus is made and a dominant trendline is identified. Marx's population thought is presented and it is compared to Malthus. Anomalies in Marx are discovered. A new perspective on Marx using the history of demography is advanced in which Malthus is found deviating from the dominant trend line and Marx's criticism of Malthus as focusing on these specific points of deviation. Marx is found defending the …

The Effect Of Attending Behavior Training Upon Learning, Martha Sue Peden

Dissertations and Theses

Various studies have been implemented concerning the physiological and psychological components of attending behavior, particularly in the area of the exceptional child. Little has been done, however, to develop specific behavioral definitions of attending behavior and to incorporate these into treatment-based research programs involving normal children attending a regular public school.

The purpose of this investigation was to discover if children from a regular public elementary school who are deficient in attending behavior skills can be taught these skills in a short-term behavior modification program and to determine if the skills thus learned facilitate learning within the regular classroom setting.

Rain Monthly Newsletter Of Eco Net, Eco-Net

RAIN: Journal of Appropriate Technology

Volume 1, Number 3

RAIN began in October 1974 as a publication of ECO-NET, an environmental education network funded by the Hill Foundation and an Environmental Education grant. Its office was based in the Environmental Education Center at Portland State University. With a focus on the Pacific Northwest, particularly Oregon, RAIN originally described itself as a “bulletin board” with an “emphasis on environmental/energy related and communications kinds of information” and interested in “the evolutionary possibilities of inter-disciplinary connections.”

The Development Of An Arsenic(V) Selective Electrode, Sandra Gee Kang

Dissertations and Theses

The object of this research was to develop an arsenic(V) selective electrode. The electrode is based on a solid state membrane prepared by pressing a precipitate of silver arsenate-silver sulfide into a pellet. After the electrode was made, experiments were designed to check for three general characteristics of the electrodes: dependence of potential on pH for constant arsenic(V) concentration; dependence of potential on arsenic(V) concentrations at constant pH and extent of interference due to phosphate and arsenic(III) ions. From these measurements, it was found that Ag₂HAs0₄ was formed originally in the membranes containing a small fraction of …

Characterization Of Zinc-Containing Metalloproteins By Resonance Raman Spectroscopy, Robert Edward Derry

Dissertations and Theses

Cobalt-substituted carboxypeptidase and carbonic anhydrase were chosen as candidates for resonance Raman spectroscopy because they possess visible absorption due to the Co(II)-protein complex. However, no evidence for resonance-enhanced peaks due to the cobalt-containing chromophore was found with laser excitation near the visible absorption bands (514.5 nm) or closer to the ultraviolet absorption bands (457.9nm).

Arsanilazocarboxypeptidase and model azotyrosine compounds were selected for a Raman spectroscopic investigation because they have intense absorption bands in the visible region. All of these substances yielded similar resonance Raman spectra. Although there was no evidence for specific zinc-ligand vibrations, shifts in vibrational frequencies of the …

Alumina-Catalyzed Cope Rearrangement, Paul Jhy-Shing Wang

Dissertations and Theses

The alumina-catalyzed Cope rearrangements of meso- and dl-3,4-diphenylhexa-1,5-diene were examined in detail, following up a preliminary observation by H. Berg at Portland State University. Commercial column-chromatography grade alumina was employed, and was further activated before use by heating at 650-700° for four hours.

Using a ratio of 20 mg of dl-3,4-diphenylhex-l,5-diene to 1 g of alumina in heptane, the Cope rearrangement was complete within 15 minutes at room temperature to give exclusively trans,trans-1,6-diphenylhexa-1,5-diene. This was identified.by melting point, infrared spectroscopy and vapor phase chromatography.

The catalyzed rearrangement of meso-3,4-diphenylhexa-l,5-diene was run using the same diene …

The Effects Of Pentachlorophenol On The Electrical Conductivity Of Lipid Bilayer Membranes, William Harvey Perman

Dissertations and Theses

The effects of pentachlorophenol (PCP), a widely used pesticide, on the electrical characteristics of lipid bilayer membranes has been studied. When a small amount of PCP (even at a concentration of a few micromoles per liter) is present in the electrolytic solution surrounding the membrane, the electrical conductivity of the membrane significantly increases. The present work was concerned with detailed measurements of the changes in the conductivity caused by PCP under chemically controlled conditions. The experimental results were analyzed to determine the permanent species in the membrane, and an attempt was made to correlate the data with existing models of …

On The Reduction Of Many-Body Dielectric Theories To The Onsager Equation, John D. Ramshaw

Physics Faculty Publications and Presentations

An approximate theory for the dielectric constant ℇ of a dense polar fluid was derived by Ramshaw, Schaefer, Waugh, and Deutch (RSWD). In the present article, the RSWD theory is generalized and made rigorous by another method of derivation. The result is a rigorous expression for ℇ which differs from the RSWD expression by the presence of a fluctuation term. Both the rigorous expression and the RSWD expression are then specialized to the Onsager model. It is found that the rigorous expression for ℇ reduces to the Onsager equation, but that the RSWD expression does not because the fluctuation term …

An Application Of A Token Economy In A Residential Treatment Center For Pre-Adolescent And Adolescent Girls, Eileen M. Moriarty

Dissertations and Theses

The purpose of this study was to increase the level of completed academic tasks through the use of a token economy system with female adolescents in an institutional classroom setting.

A 70 percent anticipated completion of academic tasks was the primary aim. Secondly, would there he an 80 percent increase of appropriate behaviors following intervention?

Six emotionally disturbed girls living in an adolescent treatment center; subjects of this study, were unable to adjust to the socially acceptable norms of behavior. Each of these girls was described as too disturbed to learn.

Utilizing the principles of behavioral change, the experimental classroom …

Probability Driven Heuristic Nets, Lynn Robert Carter

Dissertations and Theses

Let a probability driven switch be defined as a switch of three input paths and three output paths. The status of the input paths defines a probability for each output path (as to whether it will generate a signal or not.) One output path is linked to one input path, so the results of the switch at time t can affect the switch at time t+1. A switch so constructed can be defined (by the probabilities) to take on the function of the standard logic gates (AND, OR, …) A net constructed of these switches can be “taught” by …

Hermann Lietz And The Landerziehungsheime, John Daniel Flanagan

Dissertations and Theses

The subject of this thesis is Hermann Lietz and the Landerziehungsheime. Its purpose is to discover the sources of the Heime in Lietz's life and thought. It seeks to answer the basic question, "Why did Lietz become an educator and what were his motives in establishing the Landerziehungsheime?" The thesis is divided, generally, into three sections. The first attempts to isolate and reconstruct those events in Lietz's biography which were decisive in the shaping of the educator. The second part investigates certain aspects of the thought of J. G. Fichte, P. de Lagarde end R. Eucken, the three …

Development Of A Teacher Rating Instrument: Methodological Implications, Carole Gygi

Dissertations and Theses

In order to gain a more comprehensive understanding of the complexities which constitute an effective teacher and promote a positive learning climate, a field study methodology was employed to develop an evaluative instrument and to gain descriptive data.

For the purpose of developing an instrument to describe and measure effective teachers, 24 actual learning sessions (classes) were observed, extensive notes taken, and tape recordings were made in order to isolate and describe the behaviors which seemed critical to the situation being studied. This was done by observing the teacher as he taught and the learners while they learned. The teacher …

The Value Of Color Systems In Education, Shirley Jo Brehm

Dissertations and Theses

Color is with us everywhere, all the time. It is an integral part of our existence. Sensitivity to color and awareness of color's physical and psychological qualities is undeveloped in the normal, average human being. What can be done about this? Where can it be done? The answers to these two questions form the basis for this thesis. Color awareness as part of visual education and environmental sensitivity can be taught and should be taught in every educational institution. The key to BUCcessful instruction is informed, knowledgeable, color sensitive teachers and the exposure of students to workable color systems. Color …

Water Quality Within East Portland Terraces, Fouad Mohamed Tawfik

Dissertations and Theses

Groundwater from thirty-three wells which are randomly distributed within 42 square miles of the residential, agricultural and industrial area of East Portland Terraces have been analyzed. The area is moderately wet with an annual precipitation of about 37 inches. Residual and transported sediments from different sources, dominantly volcanic, comprise the subsurface lithology. The sedimentary units that were deposited by means of rivers and lakes have filled an original structural and erosional valley in the area. This relatively unconsolidated valley filling is about 900 feet of predominantly lenticular, stratified and cross-bedded lenses of clay, silt, sand, gravel, cobbles and boulders.

The …

Heat Transfer Across Carbon - Liquid Helium I Interface, Constantine Antonopoulos

Dissertations and Theses

Carbon samples were electrically heated while immersed in liquid helium I. Their temperature rise was observed on an oscilloscope as a function of the time after the onset of the electric current. There was no indication of the temperature overshoot previously reported for the case of bismuth in liquid helium.

Reasons are presented for the difference in behavior of carbon and bismuth.

The Digital Multifunction Power Measuring System, Ralph Warren Shoemaker

Dissertations and Theses

The Digital Multifunction Power Measuring System is the outgrowth of a project involving the design of a prototype precision Digital Watt Transducer for the Bonneville Power Administration (BPA). A prototype Digital Watt Transducer was built and tested since no other device of the desired accuracy was commercially available. Upon partial completion of the project, another Watt Transducer did become available which was essentially identical to our development. Since we could not economically compete with the manufacturer of these Watt Transducers, our project was stopped. Over a period of several months we thought about other ways to apply the experience gained …

Vibration Damping Characteristics Of Typical Harpsichord Strings, Jack Lee Simmons

Dissertations and Theses

Present-day builders of harpsichords disagree as to the use of iron or carbon-steel wire in their attempt to duplicate the tonal qualities of the early 16th century instruments. The variations in tone produced by vibrating iron and steel wires may be due, at least in part, to differences in their decay characteristics. A wire was set into vibration by placing a section in a magnetic field and passing a variable-frequency alternating current through it. A condition of resonance was established by appropriately selecting frequencies, lengths, and tensions that would simultaneously satisfy the relationship: fr = n/2L(T/p)1/2. Then measurements of decay …

A Mineralogical And Geochemical Study Of The Ferruginous Bauxite Deposits In Columbia County, Oregon, And Wahkiakum County, Washington, Ronald Laverne Jackson

Dissertations and Theses

Wet chemical analysis and instrumental neutron activation analysis (INAA) were performed on a suite of samples from three residual ferruginous bauxite profiles in the study area for abundances of Al₂O₃,

SiO₂, Fe₂O₃, Ti O₂, Na, Sc, Hf, Cr, Co, La, Sm, Yb, Lu, and Th. In addition a mineralogical study accompanied this research, using petrographic, differential thermal, and x-ray diffraction techniques. In each profile, the relative mobility of these elements were calculated by empirical methods for comparison with the parent rock and mineral properties in the saprolite.

This …

Intelligibility Of Speech Compared Through Two Limiter Compression Circuits, Lee M. Odell

Dissertations and Theses

Hearing aid manufacturers commonly engineer automatic gain control (AGC) circuits which are aimed at reducing sound tolerance problems and improving speech intelligibility among wearers. The most common type of AGC engineered is one utilizing a fast attack time. The present study was designed to evaluate the effects of both fast and slow attack times on the intelligibility of speech. Twenty-four normal hearing subjects listened to sixty pre-recorded sentences through two types of hearing aid circuits. Thirty sentences were modified by a fast attack AGC circuit, and thirty sentences were modified by a slow attack AGC. The subjects marked one of …

A Study Of The Relationship Between Attitudes Toward Woman's Roles And Career Choices Of Women Graduate Students, Barbara Backstrand

Dissertations and Theses

The purposes of the present study were to explore how American college women view their roles and whether or not women who choose not-traditional-for-women (NTW) careers have more or less social support from significant others for that choice than women who choose traditional-for-women (TW) careers. A related question asked whether aspects of a woman's personal history predict her role attitudes and behavior as an adult.

The Recognition, Investigation, Interpretation, And Treatment Of Landslides In The Pacific Northwest, Harry Ludowise

Dissertations and Theses

Certain features unique to the Pacific Northwest influence landsliding in this region. Weakly consolidated sediments, dense vegetation and seasonally concentrated rainfall all contribute to the distinctive conditions that are encountered here.

This study gathers together information applying to the recognition and correction of Pacific Northwest landslides. Treatment practices common to this region are discussed.

A large slide located about 30 miles east of Portland, Oregon along the Clackamas River is used as an example. Exploration, instrumentation, analysis and corrective measures are illustrated.

Strategies And The Management Of A Portfolio Of Business Units, Donald Leland Pope

Dissertations and Theses

The dissertation deals with the allocation of resources, among profit producing elements within a company, to achieve satisfactory results over a planning horizon. The company is viewed as a confederation of profit making elements called Strategic Business Units (SBU) which are independent of each other and held together by a central authority. The dissertation uses a computerized simulation model of the deterministic type in a timesharing mode. The model is deterministic with some limited probabilistic The model is deterministic with some limited probabilistic effects. It is used to develop projected balance sheets and profit and loss statements for each period …