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A Study Of The Value Of Mechanical Aids In The Teaching/Learning Of Swimming With Advanced Swimmers, John R. Cawsey

Theses and Dissertations

Problem: This study was concerned with effectiveness of a commercially produced hand-paddle as a teaching/learning aid for learning the arm action of the front crawl swimming stroke.

Procedure: The population was restricted to two classes from the general program at the Advanced Swimmer Level of the Health, Physical Education and Recreation Department of the University of North Dakota. The two samples were randomly divided into experimental and traditional groups. Data were collected by means of a subjective rating instrument designed by the researcher. Students were rated on a pre-test and post-test after eight hours of instruction.

Statistically, the data were …

The Meaning Of Death For Heinrich Von Kleist, Leah Manning Stetzner

Theses and Dissertations

Death was, a major concern for Heinrich von Kleist (1777-1811) I in his literary works and in his life. This thesis traces that concern through his letters, anecdotes, dramas, and Novelle. The works are discussed and, in most cases, analyzed separately on the basis of death's role in them as a motivating, complicati.ng, and resolving factor, in order to better understand the meaning of death for Kledst's characters and for Kleist himself. The discussions include pertinent comment from selected critics, to compare and contrast 9ther interpretations of these deaths. An initial review of Kleist's life and a concluding section on …

A Comparison Between Teacher-Directed Instruction And Student Self-Directed Study In Physical Science For Undergraduate Elementary Education Majors, Douglas L. Magnus

Theses and Dissertations

Purpose of the Study: The purpose of this research was to compare the learning which occurred in a college physical science class for pre-service elementary teachers between two teaching-learning methods identified as teacher- directed instruction and student self-directed study. The specific areas investigated were: (1) knowledge of physical science content, (2) development and application of the processes of science, (3) attitude toward physical science and (4) attitude toward student self-directed study.

Procedure: The research sample used in this study consisted of 95 elementary education majors enrolled in four sections of Chemistry 327 which is a required physical science course. The …

Organizational Climate And School Size Related To Student Self-Concept And Attitude Toward School, Marvin E. Sorum

Theses and Dissertations

The Problem: This study had as its purpose the investigation of the nature and the degree of the relationship between the size of a secondary school, the organizational climate of the school and the student background transeunt effects on student attitude toward school, and on student self-concept. This study investigated the differences which existed between school size and selected student and teacher variables; and, then, if there were differences, to discover the nature of those differences.

Sample: Based on the secondary school population, thirty-four North Dakota secondary schools were divided into: school size 1 ("over 1,000"), school size 2 (501-1,000), …

The Effect Of Handedness On Typewriting Performance, M. Latif Javed

Theses and Dissertations

No abstract provided.

A Study To Determine What Educational Preparation Would Make An Industrial Arts Major Employable Of More Employable As A Manual Arts Therapist Or An Industrial Therapist In A Veterans Administration Hospital, Gary M. Larson

Theses and Dissertations

Manual arts and industrial therapy programs have been historically an important segment of the Physical Medicine and Rehabilitation Service in Veterans Administration hospitals. It has been regarded as a significant form of patient· treatment. The increasing emphasis during the past fifteen years on vocational factors in the rehabilitation treatment process has necessitated and included the training of personnel as therapists. Therapist who have been chosen from the profession of Industrial Arts have worked so successfully in federal, state, local, and rehabilitation centers that the demand has become far greater than the supply.

The Effects Of Proper Machine On The Noise Emissions Produced By Power Tool And Machine Operations In The Industrial Woodworking Laboratory, Dwight C. Collins

Theses and Dissertations

The purpose of this study was to determine the maximum reduction of A-weighted noise produced by operations of woodworking power tools and machines on various materials by stringent implementation of proper machine maintenance practices within the woodworking laboratory.

Literature was surveyed to determine the depth and scope of the problem of hearing loss resulting from exposure to excessive noise produced by woodworking power tools and machines. An overview of studies in the areas of physiological and psychological effects of noise on humans and the control of machine noise were included.

The data were gathered and analyzed from operations of machines …

A Study To Determine The Needs For Offering Courses In Building Trades In The Grand Forks School District, Anthony G. Eckroth

Theses and Dissertations

This study was undertaken for the purpose of determining the needs for offering a building trades course in the Grand Forks senior high schools, Grand Forks, North Dakota. The following information was ascertained to determine the feasibility for such a program: (1) the employment opportunities in the building trades field--both locally and nationally, (2) the student interest in such courses, (3) the support given by local building trades firms for such a program (4) the building trades skills that should be stressed, (5) the sources p:r;esently used by local building trades employers for obtaining skilled laborers, and (6) to state …

A Study To Ascertain The Need For Industrial Arts In The Elementary Schools Of Grand Forks, Douglas A. Holm

Theses and Dissertations

No abstract provided.

Cost Accounting For Hospitals, Bruce R. Markusen

Theses and Dissertations

No abstract provided.

The Food Habits And Age And Growth Of Goldeye, Hiodon Alosoides (Rafinesque), In Beaver Creek, Lake Oahe, North Dakota, 1971-72, Paul T. Schadewald

Theses and Dissertations

Goldeye from Lake Oahe were studied during 1971-72 to determine their food habits and age and growth. Stomachs were collected from 833 goldeye during twelve 24-hour periods, Contents were analyzed to determine bihourly and spring and summer food habits, Cladocera, principally Daphnia sp.t comprised 75% of the average stomach volume, Frequency of occurrence was 98.4% for Cladocera and 87.2% for Insecta. Young-of-the-year goldeye fed entirely on microcrustaceans. The diet of older age classes was predominantly microcrustaceans, but always included insects. Feeding occurred during all hours of the day, but increased significantly at night. Goldeye were concentrated in surface waters when …

An Analysis Of The Role Perception And Role Performance Of Superintendents, Principals And Teachers In Selected High Schools In The State Of Minnesota, Ronald F. Frohrip

Theses and Dissertations

Problem: Roles, even when clearly defined, and role perception of incumbents, constitute an area where perfect congruence is impossible. Wide divergence in the perception of superintendents and principals in the performance of their respective roles, and their views of the others' role performance may be related to troublesome incidents, involving superintendents, boards, principals, staff, students, parents and community. The difference in which the superintendent and principal, or principals, regard these roles, and performance in them, may be directly related to the incidents of trouble.

Procedure: The population of the study was limited to 217 schools in the State of Minnesota. …

Growth And Development Of The Western Harvest Mouse, Reithrodontomys Megalotis Megalotis, Gary H. Richins

Theses and Dissertations

Growth rates, gestation period, litter size, reproductive age, sex ratios, and development were studied on 198 litters of Reithrodontomys megalotis megalotis. Growth was characterized by several standard skull and body measurements, and was partitioned into four phases of 1-3, 4-12, 13-22, and 23-70 days. Growth was best described by measurements of tail length, ear length, and dried eye lens weight. Reproductive activity began as early as 38 days for females and 59 days for males. Gestation period was 22 days and mean litter size was 3.83 (range 1-7). Sex ratio was 53.49% males to 46.51% females. Reproductive efficiency was 53.53%. …

The Desirability Of Direct Costing For Internal And External Financial Reports, James H. Huesgen

Theses and Dissertations

Appraisal of any costing method requires an understanding ol the various uses which are made of cost data and the relationships among these uses. Present day accounting is concerned with past, present, and future costs.

There are basically two concepts that are applied by manufacturing enterprises in accounting for these costs; the absorption costing concept and the direct costing concept. The difference between the two methods evolves around the fact that all manufacturing costs are charged to the products and there is no need to distinguish among them in costing products under the absorption theory; whereas, under the direct costing …

The Impact Of Management Information Systems On Business Organizations, James E. Cooper

Theses and Dissertations

This study is an attempt to evaluate the impact of Management Information Systems (MIS) on business, to examine recent developments in the MIS field, and to det ermine the future role of these developments as they contribute to more effective MIS

Library research of secondary sources was utilized in conducting this research. Factors crucial to information requirement such as timeliness, comprehensiveness, accuracy, reliability and flexibility were analyzed. In addition, the human behavior aspect of MIS was evaluated

The findings of this study disclosed that the impact of MIS on. business functions has been restricted by lack of use, lack of …

The Effects Of Penicillin Upon The Fission Rate Of Dugesia Dorotocephala., John J. Fahsbender

Theses and Dissertations

Planaria (class Turbellaria) are the highest life forms which exhibit fission (Hyman, 1951). The laboratory planarian, Dugesia, lives in lakes, ponds, streams and springs, where it occupies bottom habitats. Fissioning is an asexual mode of reproduction. The fission plane is usually transverse, forming behind the pharynx, and separation appears to be dependent upon locomotion (Curtis, 1902). The posterior half of the worm adheres to the substratum while the anterior half continues to move forward until the worm snaps in two. Each half then regenerates the missing parts, forming two new smaller worms.

Development Of Standard Procedures For Determination Of [Delta]G° (K), [Delta]H° And [Delta]S° Values Via Potentiometric And Calorimetric Titration Techniques, Jack Hugh Ruckman

Theses and Dissertations

Standard computer techniques were developed for computation of ΔG° values from potentiometric titration data and ΔH° values from calorimetric titration data. The procedures developed can be used for any systems having the general equations HA = W^+ + A^- ; H_2A = 2H^+ + A^2- ; and H_3A = 3H^+ + A^3-, where the proton ionizations may be consecutive or simultaneous. The thermodynamic values ΔG°(K), ΔH° and ΔS° were determined for the ionization of protons from the protonated compounds methionine (-NH_3^+ group only), phosphoethanalomine and phosphoserine. The compounds studied were selected because they contain one, two and three ionizable protons …

The Effects Of Thiamin Deficiency And Thiamin Antagonists On Cardiac Function In The Rat, D. James B. Sutherland

Theses and Dissertations

A study was made to determine what biochemical changes were involved in the slowing of the rat heart rate during thiamin deprivation, pyrithiamin or oxythiamin treatment. The appearance of bradycardia during progressive thiamin deficiency was shown to be related to the reduction in myocardial enzymatic activity of pyruvate (PDH) and 2-ketoglutarate (2-KGDH) dehydrogenase, and not due to inanition alone since pair-fed control rats did not show bradycardia until the agonal stage. Bradycardia was not the result of reduced energy since CP, ATP, ADP, and AMP levels remained normal even though PDH and 2-KGDH activity dropped to 20% of normal by …

A Taxonomic Investigation Of The Algae Of The Brigham Young University Campus, Provo, Utah, Cheng Mou-Sheng

Theses and Dissertations

A taxonomic investigation of the algal flora of the Brigham Young University campus was conducted from October 1971 to August 1972. This algal flora consisted of 27 genera and 36 species of Chlorophyta, 2 genera and 2 species of Euglenophyta, 32 genera and 106 species of Bacillariophyceae (including 16 genera and 33 species of soil diatoms), 1 genus and 2 species of Chrysophyta excluding diatoms and 6 genera and 14 species of Cyanophyta. Diatoms were the predominent algae in this study. Chlorococcum humicola, Vaucheria geminata, Amphora normani, Hantzschia amphioxys and Oscillatoria sancta were prominent in the greenhouses. In the arboretum …

Little Drum Mountains, An Early Tertiary Shoshonitic Volcanic Center In Millard County, Utah, Stephen H. Leedom

Theses and Dissertations

The Little Drum Mountains represent a deeply eroded Eocene-Oligocene volcano, consisting of a vent complex which erupted mafic flows and flow breccias, accompanied by lahars. Flows are dominated by members of the shoshonite suite and contain up to 3.95 percent K₂O, mainly occult in K-rich glass, with K₂O/Na₂O ratios greater than 1.0. In a few interbedded flows, apparently of the calc-alkaline series, pyroxene with varying amounts of plagioclase in a fine-grained groundmass of plagioclase, mafic minerals, and interstitial glass. An ash-flow tuff of the Oligocene Needles Range Formation unconformably overlies the volcanic sequence. Contemporaneous …

Archaeological Excavations At The Chauncey Webb Site (127-4) Nauvoo, Illinois, 1970, Richard L. Hansen

Theses and Dissertations

The results of archaeological excavation and laboratory analysis of artifacts from the Chauncey G. Webb House Site, Nauvoo, Illinois, are herein reported. The purpose of the report and the history of archaeological investigations at the site are explained. Next is given a brief history of the city of Nauvoo, Chauncey G. Webb and the site using historical records and the pre-Mormon, Mormon, and post-Mormon periods are discussed. This is followed by a description of the site before excavation. The method of excavation is then described, The results of the field work are given in the form of a description and …

Reproduction And Development Of Ferrissia Rivularis (Say) (Basommatophora: Ancylidae) And The Effects Of Maleic Hydrazide On Its Development And Fecundity, Yuan-Hsu Kang

Theses and Dissertations

Ferrissia rivularis was selected for research because of its local accessibility and because essentially nothing was known of its reproduction and development. Reproductive and developmental biology is first described herein from the natural environment. This is then compared with the effects created by experimental exposure to a selected herbicide, maleic hydrazide, which might be a potential threat to certain invertebrates in the natural environment.

Distribution And Relationships Of Utah Brome Grasses In Western North America, Jerry B. Anderson

Theses and Dissertations

A considerable amount of study material has beccme available since the revision of the genus in 1900 by Shear, and the revision of the section Bromopsis in 1952 by Wagnon. A number of cytological studies have been done in recent years; and Wagnon's work pointed out the need for a comprehensive study of the entire genus. This study is a taxonomic revision of the Genus Bromus for the State of Utah, and contains illustrations and descriptions of the species; synonomy; distribution maps; and discussions of many of the important aspects of the economics, ecology, and historical treatment. I have recognized …

Transforming Ability Of Bacillus Subtilis Dna Taken Up By Barley Embryos, Christine Tolman Ence

Theses and Dissertations

Purified Bacillus subtilis DNA taken up by one-day-old barley embryos and permanently fixed within the barley cell is shown to have maintained its biological activity in B. subtilis transformation. Cesuim chloride density gradient centrifugation of DNA isolated from the roots of barley embryos after the uptake and incorporation of radioactive, bromouracil-labelled B. subtilis DNA indicates the presence of the bacterial DNA in several discreet bands of well-defined density, whose density is changed by sonication. These preliminary findings concerning the fate of bacterial DNA taken up by barley roots are discussed in terms of the recombination model of Ledoux and Huart …

The Purification And Characterization Of Cytochrome B₅ From Porcine Kidney, M. Dean Klingler

Theses and Dissertations

A soluble form of cytochrome b_5, with a 413/280 nm ratio of nearly unity, has been isolated and purified from porcine kidney using fractional precipitation, ion exchange resins, and gel filtration procedures. The cytochrome b_5 shows heat stability up to 50° and is stable in the pH range 6.0 to 8.5. The oxidized protein exhibits an absorption maximum at 413 nm, while the reduced form shows three peaks: 423, 526, 556 nm. Molecular weight determinations have given variable results, suggesting the possibility of a polymer composed of four and eight units of a 13,500 molecular weight protomer. This study has …

|Ni.|Pa Calorimetric Study Of The Heat Of Ionization Of Water At 10 And 40°C, And,|Nii.|Pa Calorimetric Determination Of The Heat Of Reaction Of Tris (Hydroxymethyl) Aminomethane (Tham) With Hydrochloric Acid In Aqueous Solution At 10, 25, And 40°C, Griffith Lyn Kimball

Theses and Dissertations

The heat of neutralization, ΔH_-N, of perchloric acid with sodium hydroxide has been determined at 10 and 40° in a low ionic strength, μ, region using a nonisothermal, constant-temperature-environment solution calorimeter. Correction of the data to infinite dilution by extrapolation of a plot of ΔH_-N vs μ^0.5 gives values at zero ionic strength for the heat of ionization of water of 14.216 and 12.695 kcal/mole, respectively, at 10 and 40° . The data are correlated with those of earlier workers to give an equation allowing the calculation of the heat of ionization of water at zero ionic strength over the …

⁷Li(D,P)⁸Li Excitation Function :|Be[Subscript D] = 0.623 Mev To 1.968 Mev, Albert E. Schilling

Theses and Dissertations

In this study the excitation function for the ^7Li(d,p)^8Li reaction is determined at incident deuteron energies ranging from 0.623MeV to 1.968MeV by counting the delayed alpha-particles as a result of the ^8Li beta decay. This excitation function reveals resonances at 0.777±0.012MeV and 1.031±0.015MeV with cross sections of 202±9mb and 188±8mb respectively. The uncertainty in the cross section values was due to three independent sources of error within this experiment, the solid angle, the ^8Li half-life, and the target (LiF) thickness. The uncertainty in the energy values was determined from an energy calibration of the accelerator used in this study. Resonances …

Transient Convective Heat Transfer In Closed Containers During And After Gas Injection, Jennings Donell Means

Theses and Dissertations

This dissertation presents experimental data correlations for the spatially - averaged convective heat transfer coefficient for thin walled closed containers during and after gas injection. The different modes of heat transfer were identified, and correlations were made for each. Correlations are presented for the injection period, post-top injection, post-bottom injection, post- tangential, post-radial injection, and post-ejection heat transfer for various tank geometries. Of special significance are the very high heat transfer rates that were shown to be present in some cases immediately after injection. Heat transfer rates were shown to be, for a short period, up to almost two orders …

Analysis Of Heat Generation And Temperature In High Speed, High Temperature Bearing Balls, Hans R. Ringger

Theses and Dissertations

This thesis reports an investigation of the generation of heat on, and the prediction of temperature of high-speed, dry-film lubricated, stainless steel bearing balls.

The Design And Analysis Of An Electro-Pneumatic Signal Converter, Richard K. Thornton

Theses and Dissertations

In the field of process control it is desirable to study dynamic characteristics such as frequency response and distortion when determining just how equipment is to be controlled. Pneumatic controllers, transmitters, control valves, etc., all have dynamic behaviors which can be expressed mathematically as transfer functions. Each component plays an important role in determining the entire system behavior. Frequency response is one technique used in developing a component’s transfer function. By driving a device with a sinusoidal signal of fixed amplitude and frequency the output amplitude and phase shift are measured and compared with that of the input. Varying the …