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The Effects Of Metals On Growth And Nitrogenase Activity Of The Soil Cyanobacterium, Nostoc Commune Vaucher., Charles Lyle Pederson

Theses and Dissertations

The overall purpose of this study was to provide basic data regarding the influence of metals on a free-living terrestrial cyanobacterium, and to demonstrate the utility of laboratory studies for assigning biological significance to field observations on soil-algal ecology.Because Nostoc commune Vaucher is a subaerial inhabitant of soils, it did not respond favorably to traditional liquid culture techniques. Therefore, a filter-culture technique was developed whereby N. commune was grown as a surface film on membrane filters superimposed on an inorganic nutrient agar. Filter-cultures were established by inoculating sterile cellulose acetate membrane filters with a layer of N. commune. Growth rates, …

Experimental Ultrastructural Analyses Of Glomerular Basement Membrane Heparan Sulfate Proteoglycans Under Proteinuric And Nonproteinuric Conditions., Jody Ann Rada

Theses and Dissertations

Real glomerular basement membranes (GBMs) exhibit a charge-selective barrier, consisting of anionic sites, that restricts the passage of anionic molecules into the urine. These sites are located primarily in the laminae rarae interna (LRI) and externa (LRE) of the GBM and consist of heparan sulfate proteoglycan (HSPG). Previous efforts to localize the HSPG core protein within various layers of the GBM have been contradictory. Furthermore, attempts to correlate proteinuria in several disease states with a decrease in anionic sites or HSPG core protein have yielded conflicting results. In the present study when rat renal cortex blocks were treated by immersion …

Efficiency Of Monoclonal Antibodies To Detect Respiratory Virus Antigens In Clinical Specimens, Kenneth E. Irmen

Theses and Dissertations

The development of specific antiviral therapy has increased the need for rapid viral diagnosis and necessitates a better understanding of viral epidemiology. The purposes of this study were to determine the efficiency of immunofluorescent assay employing monoclonal antibodies from commercial sources to detect respiratory virus antigens in clinical specimens and to define the epidemiology of respiratory viruses in Bismarck, North Dakota.

Throat swab, nasopharyngeal swabs and nasopharyngeal washes were excellent specimens for studying viral epidemiology; virus isolation rates were 7.7%, 33.2%, and 39.7%, respectively. Yearly epidemics of respiratory syncytial virus and influenza were observed. In contrast, parainfluenza and adenovirus infections …

The Fate Of Flame Volatized Sodium During The Combustion Of Pulverized Coal In Reaction With Silica And Sulfur (Studied With The Aid Of A Synthetic Coal), Thomas A. Erickson

Theses and Dissertations

The interaction of flame volatilized sodium with sulfur and silica (quartz) was studied under coal fired boiler conditions in a laminar flow reactor. Measured compositions of sodium, sulfur and quartz were bound together in a synthetic coal matrix and subject to various temperature profiles ranging from 900-1500°C and residence times ranging from 0.1 to 1.4 seconds. As well as studying the inorganic reactions, a detailed look was also spent on the actual combustion characteristics of the synthetic coal. These results are serendipitous in nature but deserve attention as well.

The addition of a carbon matrix to a model mixture alters …

Seeing The Palm Trees Again, Jie Wang

Theses and Dissertations

A translation, analysis, and commentary on Seeing the Palm Trees Again, a highly regarded novel in contemporary Chinese fiction by Chinese-American novelist Lihua Yu, are presented. The novel is about a trip home by a professor of Chinese who has lived in the United States for ten years. It depicts the attitude of common Chinese people toward sending their children to America. It also describes the life of Chinese students in the United States. In creating the character of Tianlei Moe, the author has said what many people in Tianlei's situation feel but are reluctant to express openly: the feeling …

Classroom Modifications For Learning Disabled Adolescents: The Effects Of Inservice And Follow-Up Consultation On Four Regular Classroom Teachers, Lynne Chalmers

Theses and Dissertations

This study asked the question: What are the effects of an inservice on classroom modifications for secondary learning disabled students on the teaching practice of four highly able teachers? A secondary question asked was: To what extent are teachers‘ behavior and attitudes affected by follow-up consultation? The participants were four secondary regular classroom teachers representing four curricula areas (English, social studies, health, and biology). All four had been recognized as having the ability to work well with learning disabled students. The procedure used for the study was a form of naturalistic inquiry, specifically participant observation. All four teachers participated in …

Effects Of Chronis Consumption Of Caffeine On Memory For Prose In Young And Elderly Adults, Malva Waters

Theses and Dissertations

Caffeine is one of society's most widely used central nervous system stimulants. Most studies involving caffeine and memory have tested the recall of young subjects following acute administration of caffeine. This study was designed to determine the effects of chronic use of caffeine on memory for prose in young and elderly adults. Forty-nine young and forty-nine elderly subjects read four expository prose passages from the computer screen and orally recalled each story Recalls were tape recorded and later scored for presence of idea units Chronic consumption of caffeine had no significant effect on recall of prose passages. It is speculated …

Administrator Perceptions Of Legal Assistance In North Dakota, Brad Rinas

Theses and Dissertations

No abstract provided.

A Training Manual For Direct Care Staff Of Licensed Community Residential Programs Serving Persons With Developmental Disabilities In Minnesota, Kathleen Anne Griffin Pearson

Theses and Dissertations

No abstract provided.

Instructional Modifications For Learning Disabled Students In Elementary Classrooms, Mary Beth Geringer

Theses and Dissertations

No abstract provided.

Evaluation Of An Aerodynamic Particle Sizer With Certified Polydisperse Test Dusts, Stanley J. Miller

Theses and Dissertations

The Aerodynamic Particle Sizer (APS) is a near real time laser particle sizer that counts and sizes particles in the range of 0.5 /xm to 3 0 /xm, which makes it ideal for measuring the particle size distribution of fly ash from coal combustion. While the APS has proven to be a valuable instrument for measuring particle size distribution from flue gas streams, data indicate that the APS may not be providing an accurate particle size distribution over the entire range of 0.5 /xm to 30 /xm.

The primary objective of this study was to determine the ability of the …

Recent Changes In The Ethnobotany Of Standing Rock Indian Reservation, Shelly Katherene Kraft

Theses and Dissertations

Gathering arid preserving wild fruits and vegetables for food and medicine, especially from the wooded bottomlands, was a traditional part of the Lakota culture. Plant use among the Lakota has been greatly reduced and in some cases, completely eliminated by the damming of the Missouri River by Oahe Dam. This dam, which forced the Lakota of Standing Rock Reservation to give up their homes in the bottomlands in violation of their treaty rights of 1868 had a considerable impact on the biogeography of the Standing Rock Indian Reservation, in January I960, almost 200 Indian families were evacuated from their homes …

Legislative Oversight In The North Dakota State Legislature, George W. Belcher Jr.

Theses and Dissertations

The purpose of this study is to look at the extent of legislative oversight in the North Dakota State Legislature. The State's legislators meet only once every two years for about four months and the rest of the time they are fulltime private citizens and parttime legislators. Oversight of North Dakota's Executive Branch must be done by legislators who are being pulled in several directions by job, family and constituents. Oversight does not rate high on the priority list in the legislative interim.

In order to get an idea of what types of oversight are available to the State's legislators, …

Coping With Conflict: A Study Of Interpersonal Conflict Resolution Styles Of Adult Children Of Alcoholics And Nonalcoholics, Renae A. Myszkowski

Theses and Dissertations

Research on adult children of alcoholics has indicated that such children have difficulty with behavioral and communicative characteristics. Specifically they have difficulty with such behaviors as lying, intimacy, responsibility, and trust. Research also has indicated that adult children of alcoholics rely on coping mechanisms to escape from their chaotic environments and such mechanisms are manifested in behaviors of co-dependency and family roles. Although the literature on adult children of alcoholics suggests that these individuals may have trouble with problem solving in conflict, no apparent literature discusses the strategies of conflict resolution for such individuals.

This study predicted that adult children …

Pioneer Academic Villages Campus Growth At The University Of North Dakota Agriculture College, Jay D. Jerde

Theses and Dissertations

The Department of Industrial Technology at the University of North Dakota is involved _in the increased computer use trend. Computer aided drafting, computer aided design, computer numerical control machining, computer controlled robots, and computer aided publishing are all among the growing list of computer applications in the Department. Sharing data between the computers, as well as efficiently utilizing computer peripherals, has become a problem. A local area network was one way to solve the data sharing and peripheral use problem. This study was conducted to develop a local area network for the Department of Industrial Technology, University of North Dakota. …

Gender Differences In Prose Memory After Acute Intoxication With Ethanol, Jennifer S. Haut

Theses and Dissertations

The present study investigated the effects of acute intoxication with ethanol on prose processing. Three groups of subjects were studied: males, females taking oral contraceptives, and females not taking oral contraceptives. Subjects were administered either 0.0 or 1.0 milliliter per kilogram of body weight of ethanol, and then read two long (400 words) and two short (200 words) expository prose passages from a computer screen. Immediately after reading each passage, subjects orally recalled the passages.

Overall, intoxicated subjects encoded prose passages significantly slower and recalled significantly less information from the passages than the sober subjects, and this difference could not …

A Survey In Hard Times: Work Attitudes Of North Dakota State Employees, Michael D. Dorsher

Theses and Dissertations

A telephone survey with a random sample of 317 is used to measure the work attitudes, experiences, and satisfaction levels of North Dakota state employees. These findings are compared to bureaucratic stereotypes and research. The data refute most negative stereotypes about bureaucrats, and support many previous research findings, such as the positive relationships between job satisfaction and income, status, and fulfilled expectations. The data also indicate state employees voted heavily for tax hikes in the Dec. 5, 1989, special election, and that support rose with the income, job status, and education level of employees. Lastly, the survey shows North Dakota …

Potential Actions Of Elementary Principals And Their Perceived Effects On Teacher Job Satisfaction, Keith D. Anderson

Theses and Dissertations

No abstract provided.

Vacuum Forming And Styrene Emissions, Kevin D. Matheson

Theses and Dissertations

The purpose of this research was to investigate if production of composites through use of the vacuum bag forming would result in different levels of styrene emission than the use of the hand lay-up process.

The following objectives were outlined:

1. To test styrene emission levels in a controlled setting by using both hand lay-up and vacuum bag forming processes

2. To determine significant differences in styrene emissions between the two processes

3. To research and develop a vacuum bag forming device which will conform to those used in industry

Quasi-experimental research design was utilized by producing twelve composite samples; six were vacuum …

Sexual Harassment: An Analysis Of North Dakota Personnel Policy, Sharon S. Kessler

Theses and Dissertations

A telephone survey was used to measure North Dakota state employees' experience with sexual harassment on the job. Survey respondents who reported being sexually harassed were asked an additional set of questions aimed at quantifying the experience, its effects and use of formal remedies. Expectations about survey results were generated from a review of the literature and other survey findings. While many expectations were not supported by the data, several important findings emerged. Specifically, 17.1 percent of all respondents, including 22.9 percent of women respondents and 10.7 percent of all male respondents reported being sexually harassed in state government during …

Individual Differences In Verbal And Spatial Memory: The Contribution Of Gender, Verbal Ability, Spatial Ability, And Sex-Role Orientation, Mary H. Sarafolean

Theses and Dissertations

The present study examined the degree to which reported sex differences in verbal and spatial memory performance are due to confounds between the sexes on the individual difference factors of verbal ability, spatial ability, and sex-role orientation. Specifically, college age males and females were administered psychometric tests of verbal ability, spatial ability, and sex-role orientation. The contribution of each of these factors to predicting subjects' scores on verbal and spatial memory tasks was analyzed using regression analysis procedures.

Results indicated a male advantage on spatial ability tasks, however, no sex differences in verbal ability were found. Gender of subject was …

Gender Role Orientation In Same- And Cross-Gender Friendships, Mary Beth Scanlon

Theses and Dissertations

The present study was designed to investigate the relationship between individuals' gender-role orientations and the strength and rewardingness of their friendships. The study was guided by a series of questions centered around the assumption that androgynous individuals exhibit greater behavioral flexibility from one situation to another. Androgynous individuals were expected to provide a broader range of interpersonal rewards, forming stronger and more rewarding friendships than gender-typed individuals. In addition, androgynous individuals were expected to respond equally favorably to both same- and cross-gender friends, making gender-role orientation a factor attenuating gender differences in friendship.

A total of 105 women and 101 …

Measured Doppler Radar Profiles Of Wheels, Michael W. Leddige

Theses and Dissertations

The accuracy of traffic control radars has been in controversy for several years. The purpose of this thesis has been to experimentally investigate the contribution of one facet arising from the doppler radar returns from automobile wheels. By measuring the electromagnetic backscatter profiles of an assortment of automobile wheels over a normal operational range of viewing angles, the locations of the dominant scattering centers on the wheels could be identified. Through knowledge of the locations of these scattering centers, velocity error assessments could be made.

Light truck and car wheels were the targets examined in this thesis. A target pedestal …

Preliminary Study Of The Application Of Visual Phonics To The Remediation Of Developmental Dyspraxia Of Speech, Kimberly Dawn Avery

Theses and Dissertations

An unequivocal program of remediation for developmental dyspraxia of speech remains to be established. Observations have concluded that dyspraxia, a neurologically-based motor programming disorder, benefits from a multisensory stimulation approach. One augmentative approach which incorporates auditory, tactile and visual stimuli is Visual Phonics. Research is limited in the use of Visual Phonics in dyspraxic intervention and, therefore, its contribution to remediation cannot be substantiated.

The purpose of the present study was to investigate the contribution of Visual Phonics to the remediation of developmental dyspraxia of speech. One subject, thirteen years of age, participated in this study. Upon identification of six …

Individual Differences In Children's Eyewitness Memory Skills, Kathryn M. Hammes

Theses and Dissertations

The present study investigated the impact of individual differences on children's eyewitness memory skills. Preschool (mean age of 4 years 8 months) and elementary (mean age of 11 years and 3 months) aged school children played a 5 minute game of Simon Says with an unknown male confederate. The children's memories for the game and the man with whom they played the game were assessed on an objective questionnaire, free recall and photo recognition task. Both the free recall and the objective questionnaire were given immediately after the game and exactly one week later. Half of the subjects were exposed …

Introductory Dataperfect® Instruction, Frances Jenson Larsen

Theses and Dissertations

The project should be used in a beginning computer class. These units contain projects from simple to complex. The first instructional unit uses a database that comes with the DataPerfect® program. The students build and manipulate a small database. Reports are prepared, and finally the students design an original database. These instructional units are intended to be used in a high school classroom with the DataPerfect® computer program. DataPerfect® is a copyrighted program marketed by WordPerfect Corporation of Orem, Utah.

Fund Accounting Principles Advocated By Accounting Educators And Hospital/Municipal/College Chief Accountants, Carol S. Dobitz

Theses and Dissertations

The study was designed to determine appropriate content for the Fund Accounting topic offered in college accounting programs to aid in ensuring that accounting graduates have adequate preparation for accounting positions with nonprofit entities.Two questionnaires, containing the same fifty-seven nonprofit accounting principles and different demographic variables, were developed with the input from a panel of experts. These were mailed nationally to Accounting Educators and Chief Accountants employed by nonprofit hospitals, nonprofit colleges, and municipalities. The respondents indicated (1) the nonprofit accounting principles that are in current usage and (2) the principles respondents believed are appropriate.The findings were based on the …

Comprehension And Aging: Pronoun Anaphor., Helen J. Kahn

Theses and Dissertations

The issue of whether old and young adults differ in their ability to resolve pronoun anaphors was investigated. Controlling their own rate of presentation, subjects read stories ranging in length and selected the antecedants for sentences which contained referent nouns and properties that were consistent, inconsistent or neutral with respect to general knowledge. Older adults were less accurate than young adults in noun choice with consistency of information affecting the older adults more than the young adults. Older adults also took longer to read both the first sentence containing the referent information and the final pronoun anaphor sentences in the …

Ige-Mediated Histamine Release As A Mechanism Of Coronary Artery Spasm., Margie Jean Hansen

Theses and Dissertations

Histamine, a biogenic amine which may be released as a result of allergic reaction, is known to cause coronary artery spasm in vivo and in vitro. This study addressed the question of whether or not there is a relationship between allergy and coronary artery spasm. Objectives of the study were to compare quantities of immunologically-mediated histamine release from tissues obtained from patients with varying degrees of allergy and coronary artery disease, and to compare changes in coronary artery contraction induced by immunological challenge.After obtaining approvals for human subjects research, coronary artery samples were obtained at autopsy from 25 patients at …

The Development Of The Smelting Industry In The Central Salt Lake Valley Communities Of Midvale, Murray, And Sandy Prior To 1900, Charles E. Hughes

Theses and Dissertations

This thesis found that the three communities of Midvale, Murray, and Sandy were the center of the smelting industry in the Salt Lake Valley. These communities became the center of smelting because of their central location, the readily available water supply, and the availability of an inexpensive, efficient transportation system to ship the bullion. The smelters were surrounded by two major mountain ranges which provided a ready supply of good lead, silver, and copper ore.

The development of the smelting industry followed three separate phases or periods. The first phase was one of experimentation or period of discovery, in which …