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Geochemistry And Petrology Of The Lake Vermilion Formation, Ely Greenstone Belt, Northeastern Minnesota, Scott E. Robinson

Theses and Dissertations

Alteration in the Lake Vermilion Formation took place at low water/rock ratios. Calculations using the method of Grescens (1967) indicate that the amount of open-system elemental exchange was slight. During secondary alteration, Ca, Na, K, Rb, Sr, and Ba were very mobile; Mg and Fe were less mobile; Si, Al, Ti, Zr, Y, and Ni were slightly mobile. Chemically the rocks resemble modern spilites and keratophyres.

The dacites and basalts are depleted in Ti, Zr, and Y relative to Tertiary igneous rocks of similar composition. The Lake Vermilion Formation basalts display a volcanic arc basalt trend of constant Ti02 with …

Macrofossils And Biostratigraphy Of The Bakken Formation (Devonian And Mississippian) In Western North Dakota, Lawrence C. Thrasher

Theses and Dissertations

The Bakken Formation, up to 145 feet thick in North Dakota, is a subsurface formation in the Williston Basin that typically consists of two black shale members separated by a middle member of predominantly gray siltstone or silty limestone up to 85 feet thick.

Well over 500 macrofossils representing more than 50 taxa were collected from cores of 40 wells. Brachiopods, the most common fossil, represent 17 genera, 1 of which have not been previously reported from the Bakken. Nonbrachiopod fossils of this study, mostly not previously reported from the Bakken, are a hylothyrid, a conulariid, a syringoporid coral, several …

Metamorphism And Migmatization Of Metasediments In The Precambrian English River Subprovince, Western Ontario, Rodney M. Baumann

Theses and Dissertations

Metasediments of the Precambrian English River subprovince, a subdivision of the Superior province, are conspicuously migmatized by 'bands of light-colored, igneous-appearing material. The metasediments themselves consist of alternating layers of pelite and wacke lithologies, which represent original mudstones and graywackes respectively. Their deposition is thought to represent subaqueous turbidity flows.

For the metasediments of the study area, a 250 square kilometer portion of the English River subprovince, metamorphic grade increases southward from the English River subprovince's northern border. Two isograds have been mapped: the disappearance of muscovite and the disappearance of stable sillimanite. Geothermometry studies are consistent with the trend …

Metamorphism In The Eastern Lac Seul Region Of The English River Subprovince, Ontario, Steve J. Chipera

Theses and Dissertations

The English River subprovince of the Superior Province, Canada, is a linear, east-west trending high-grade metamorphic belt which extends from Lake Winnipeg in the west, to the James Bay lowlands in the east. It is composed of two prominent lithologic domains: a northern sedimentary gneiss-migmatite domain, and a southern plutonic domain. The northern domain consists primarily of alternating migmatized layers of garnet-biotite "wacke" and garnet-cordierite-biotite "pelitic" metasediments. The southern domain is composed mainly of intermediate granitic to trondhjemitic plutons. Bordering to the north and south are the lower grade Uchi and Wabigoon greenstone belts. Metamorphism and migmatization occurred during the …

A Structural Study Of Some (H⁶-Arene) Ml₂, First Row, Group Viii, Transition Metal Complexes And Their Derivatives, Stuart Kevin Janikowski

Theses and Dissertations

No abstract provided.

The Secret Of Countess Valerena By Gregorios Xenopoulos : Translation And Critical Analysis, Maria Psallidopoulou

Theses and Dissertations

No abstract provided.

A Study Of Chymotrypsin By Active Site Labeling (Fluorescence, Infrared, Modification, Titration, Quenching, Urea)., Jeffrey Lynn Carlson

Theses and Dissertations

In order to characterize the environmental and ionic nature of the active site of chymotrypsin (Chy), a number of derivatives were prepared and investigated using direct titration, FTIR and fluorescence spectroscopy. Chymotrypsin anthranilate (CA) fluorescence and it quenching was studied as a function of pH, ionic strength and urea concentration. The emission maximum of CA exhibits a blue shift with increasing pH and titrates with a pK(,a) of 7.7. This pK(,a) decreases for CA derivatives with surface carboxyls blocked. The titration of His 57 is likely responsible for this pH shift. Acrylamide was a better quencher at pH 8 than …

The Influences Of Selected Government Legislation On The Development Of The Community Colleges In Manitoba (Canada, History)., Agnes Marie Glenn

Theses and Dissertations

Statement of the Problem. The problem of this study was to determine the influences of selected federal legislation on the development of community colleges in Manitoba.Purpose of the Study. The purposes of this study were to identify and describe specific federal legislation and federal-provincial agreements which influenced the development of community colleges in Manitoba, and to determine specific and perceived outcomes in the community colleges in Manitoba resulting from the legislative acts and agreements.Procedures. The historical research method was used. Documents studied were federal legislation and federal-provincial agreements related to technical/vocational education; annual reports of the federal Departments of Agriculture …

An Electrochemical Investigation Of The Reductive Carbon-Oxygen Bond Cleavage Reactions For Some Model Ether Compounds (Intramolecular Cyclization, Phenyl Halide Reductions, Radical Anion Dimerization)., Miles Duane Koppang

Theses and Dissertations

The radical anions of 2, 3, and 4-cyanoanisole and 2 and 4-cyanodiphenyl ether have been electrochemically generated and shown to react by a variety of pathways in dry N,N-dimethylformamide (DMF). The 2-cyanoanisole radical anion dimerizes (k = 320 M('-1) s('-1)) to a dimeric dianion which undergoes carbon-oxygen bond cleavage (k = 0.019 s('-1)) to 2-cyanophenoxide, methide, and 2-cyanoanisole. The 3-cyanoanisole radical anion is relatively stable (t(, 1/2) > 10('3) s). The 4-cyanoanisole radical anion undergoes unimolecular fragmentation (k = 7 s('-1)) to yield 4-cyanophenoxide and methyl radical. The radical anion of 4-cyanodiphenyl ether undergoes dimerization (k = 110 M('-1) s('-1)) to …

The Use Of The Holland Constructs, As By The Act Assessment, To Predict Collard Persistence, Achievement, Stability, Raymond Gerszewski

Theses and Dissertations

This study examined the use of the Holland constructs, as measured by the ACT Assessment, in the prediction of college persistence, achievement, and stability. Specifically, this research measured the combined effects of expressed and inventoried Holland type, congruency, consistency, and differentiation~ along with the predictors of sex, academic aptitude, and achievement, upon persistence, achievement, and stability. In addition, the relationship of the Holland constructs and these other predictors was examined.

ACT Assessment records for a large sample of new, first-time freshmen (N=ll58) who entered the University of Nor.th Dakota in the Fall of 1978 were retrieved and matched with Student …

Study Of Longitudinal Landing Flying Qualities Evaluation Using Pilot Model Theory, Eric D. Didomenico

Theses and Dissertations

Control Anticipation Parameter (CAP), used in MIL-SPEC-8785C as a longitudinal handling qualities criterion does not adequately distinguish between different flight phases. Recent flight test data from the Landing Approach Higher Order Systems (LAHOS) study further indicate the inadequacy of the second order approximations for higher order longitudinal landing flying qualities. Nine Aircraft that fall within the Level 1 boundary reveal pilot ratings ranging from 1.5 to 10 (Cooper/Harper). These nine aircraft are studied by combining their longitudinal dynamics with pilot modelling to examine a better method of landing flying quality prediction and evaluation. Pilot model theory (cross-over pilot model) is …

Application Of Combined Jointed Media And Discrete Slip Plane Characteristics To Subsidence Predictions, David W. Basinger

Theses and Dissertations

This thesis presents an application of a numerical formulation incorporating the effects of joints, cracks, and fractures to a soil subsidence predictions problem, and the extension of that formulation to combined discrete slip planes and jointed media continua formulations. The results obtained are compared to each other and to a physical centrifuge simulation performed previously on the same problem.

Ormsby Macknight Mitchel And The Railroad: A Study Of The Significance Of Lines Of Communications In The Civil War, 1861-1862, Michael Robert Terry

Theses and Dissertations

This thesis analyzes a minor campaign of the American Civil War, but one which illustrates the importance of the railroad, as a line of communications, to strategy. In the Spring of 1862, the Union Army in the west concentrated at Pittsburg Landing, in Tennessee, preparatory to an advance south on Corinth, Mississippi. General Ormsby Macknight Mitchel, in command of the Third Division of the Army of the Ohio, was given the defensive duty of safeguarding the Federal left, which included Middle Tennessee, against any Confederate threat from Chattanooga. Instead, Mitchel advanced to and captured Huntsville, Alabama.

This action provided several …

Teacher Supervision/Evaluation In The Small (Level Iii) Schools Of North Dakota: A Survey Of Teachers, Administrators, And School Board Presidents, Claudette J. Harring

Theses and Dissertations

A questionnaire survey of the Level III (rural) elementary and secondary school teachers (518), administrators (259), and school board presidents (84) in North Dakota was conducted on the topic of teacher supervision/evaluation. Participating were 132 accredited public high school districts. The survey attempted to identify background characteristics of the respondents and current practices in teacher supervision/evaluation used in their school districts. In addition, the respondents were given an opportunity to provide their personal views as to the unique problems these small schools might have with teacher supervision/evaluation as well as to suggest ways in which the present programs or processes …

A Study Of The Relationship Between Secondary Mathematics Teachers' Beliefs About The Teaching-Learning Process And Their Observed Classroom Behaviors, Cecil E. Grant

Theses and Dissertations

No abstract provided.

A Student Guide To Autotab, Thomas L. Reardon

Theses and Dissertations

No abstract provided.

Assessing The Procedures For Teaching Basic Skills In The Cleveland Public Elementary Schools, Marlene Burr Ward

Theses and Dissertations

The purpose of this study was to assess how the Cleveland public elementary schools were perceived by teachers, principals, parents, and students to be addressing the basic skills. The hypotheses state that the perceptions of these groups did not differ significantly in the following variables: planning, organizing, delivering, and monitoring of basic skills in regard to school policies and procedures, the school plan, learning support, teaching strategies, verification of student learning, performance expectations, and parent involvement.

Parent and community volunteers administered and collected both adult and student surveys. The instruments yielded data on 184 statements in the adult survey and …

Rheological Behavior Of Coal-Water Slurries, Angara Venkata Ramana Rao

Theses and Dissertations

The rheological behavior of coal-water slurries was stud ied, using a Brookfield Rheolog viscometer with a thermosel system to maintain constant temperature. The coal used for making up the slurries was Sarpy Creek subbituminous coal from Montana. The effect of particle size, slurry concen tration and hot water drying process on the rheology was in vestigated. The particle size used ranged from 0.223 mm to 0.044 mm mean particle diameter, and the solids concentra tion in the slurry varied from 15 to 70 weight %. Tempera ture was maintained at 28 C (82 F).

Coal-water slurries exhibited a pseudoplastic behavior. …

Hot Water Drying Of Subbituminous Coal, Ajit Thomas Joseph

Theses and Dissertations

This study investigated the reduction of moisture of a Sarpy Creek Montana subbituminous coal when it was heated under pressure in a water slurry. This method of drying is called hot water drying. The temperature range investigated was from 260 C to 360 C. Two particle sizes were studied, namely, 0.4699 cm and 0.0505 cm mean particle diameters. The average initial moisture content of the coal was 26.87 percent.

The hot water drying was performed in a cold charge auto-clave. The coal-water slurry was charged, heated to desired temperature and held at that temperature for 15 minutes residence time. It …

Education For A Professional Accountant, Madalyn H. Wick

Theses and Dissertations

No abstract provided.

A Comparison Of Perceptions Of Selected Germanic Executives To Determine If Case-Study Analysis Education Affects Their Decision-Making Process, Richard L. Painchaud

Theses and Dissertations

Problem. The problem of this study was to determine if case-study analysis education was perceived to affect top-level executives in making operating decisions without favoring any of the twenty-two selected influences.

The term selected influences was adopted to represent the twenty-two inputs or variables that were selected as modifiers in the managerial decision-making process. These inputs to decision-making represent many of the functional, social and cultural areas influencing daily life.

Procedures. The study was conducted between September 1983 and February 1984 in the Vienna, Austria (Europe) area.

Seventy-seven top-level executives holding the position of Generaldirektor, Vorstandes, Geschaftsfuhrer, Minister, or Ambassador …

The Relationships Among Performance Ratings, Job Satisfaction Perceptions, And Preferred Non-Monetary Rewards For Elementary School Teachers, Beth Stangeland Randklev

Theses and Dissertations

The purpose of this study was to determine whether or not there was a relationship among job satisfaction, preferred rewards, perceptions of teachers' performance, and selected demographic variables for elementary classroom teachers in North Dakota and Minnesota. Eighty-five teachers from seven selected elementary schools comprised the sample.

Data were gathered by employing the following instruments: the Teacher Performance Assessment Instrument (TPAI), the Job Descriptive Index (JDI), and a preferred rewards instrument designed by the researcher to measure the desirability and availability of various rewards. Teachers also completed a demographic information sheet which was used in the data analysis.

The analysis …

Thermal And Kinetic Analyses Of The Pyrolysis Of A Northern Great Plains Lignite, Ross Steven Hefta

Theses and Dissertations

The pyrolysis of Indian Head lignitic coal in argon, carbon monoxide and hydrogen was studied to obtain a kinetic model of the process and to determine heat effects . A Du Pont 910 differential scanning calorimeter and a Du Pont 951 therm ogravim etric analyzer were utilized to measure heat effects and weight loss respectively.

N eith er the s in g le - r e a c t io n nor the d is tr ib u te d a c t iv a tio n energy p y r o ly s is models generated k in e …

Rheological Study Of A Direct Liquefaction Feed Slurry, Dennis L. Laudal

Theses and Dissertations

A rheological study was made of a liquefaction startup- feed slurry. The slurry consisted of North Dakota lignite sized to 70% less then 200 mesh and a carrier solvent of an thracene oil. The rheological behavior of the slurries, o with coal concentrations of 0 to 40% at 40 C, was shown to be Newtonian, allowing Bernoulli's equation to be used for direct calculation of pressure drop. Calculated values pre dicted the measured data within 10% for the test conditions.

The investigation used an experimental slurry loop, con sisting of a bank of pipes with nominal sizes ranging from 1 …

The Role Of Symbolic Form In The Bedtime Nature Stories Of Thornton W. Burgess, Ronald A. Royer

Theses and Dissertations

The task of this research is to examine the epistemological premises inherent in Thornton W. Burgess' nature stories for children as defined by Ernst Cassirer's philosophy of symbolic forms. Its purpose is to identify these premises, examine them in light of Cassirer's philosophy, and explore their relevance to education theory.

Burgess holds that children are characterized by their potentiality, that their interest in animals is inherent, that they instinctively sense themselves superior to animals, and that for these reasons it is possible to convey any lesson to the child through the medium of a fact-based animal story.

During the course …

The Compatibility Of Management Advisory Services And Audit Independence, Nancy J. Anderson

Theses and Dissertations

No abstract provided.

Audit Sampling: Statistical Versus Nonstatistical, Boyd L. Binde

Theses and Dissertations

No abstract provided.

Effects Of N-Substituents On The Polymerization Properties Of Maleimide, Dilip R. Abayasekara

Theses and Dissertations

The effect of the amide function and the carbethoxy function on the polymerization properties of maleimide are reported. The effects of these functions on homopolymerization and copolymerization (with styrene) were examined. These electron-withdrawing groups appeared to decrease the rate of homopolymerization and increase the rate of copolymerization.

N-carbamylmaleimide and N-carbethoxymaleimide were copolymerized with styrene in 1,4 -dioxane at 60.0° C at different feed ratios to high conversion. Copolymer composition, determined by elemental analysis and 1H NMR, indicated that while 1:1 copolymers were obtained with an equimolar feed ratio, the two systems were not alternating. It is of note that the …

A Study Of Two Factors Associated With A Ward County Veterinarian's Revenues, Marlin H. Linger

Theses and Dissertations

No abstract provided.

A Follow-Up Study Of University Of North Dakota Industrial Technology Graduates Of The Period 1973-1983, Bert M. Gumeringer

Theses and Dissertations

No abstract provided.