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Absorption Of Caffeine Through Isolated Rat Small Intestine, William James Hatch

Theses and Dissertations

Intestines of fifty-six albino rats of the Holtzman strain were removed and perfused with Krebs bicarbonate buffered solutions containing caffeine. After one hour of absorbtion, caffeine was extracted from the serosal fluids in chloroform and concentrations were determined spectrophotometrically. It was found that all portions of the small intestine transported caffeine against a concentration gradient. This transport mechanism demonstrated saturation kinetics and was inhibited by ouabain. It was concluded that the movement of caffeine from the mucosa to the serosa of the small intestine cannot be the result of simple diffusion. Possible mechanisms by which the absorption of caffeine takes …

Some Aspects Of Vegetation Response To A Moisture Gradient On An Ephemeral Stream In Central Arizona, Deborah Ann Bloss

Theses and Dissertations

Ecological aspects of desert vegetation in relation to a moisture gradient of an ephemeral stream in central Arizona were investigated. The stream channel, flood plain and north, west, south, east facing slopes represent a moisture gradient going from most mesic to most xeric conditions. In parts of the system, vegetation from the stream channel intergraded into flood plain vegetation which in turn intergraded into slope vegetation types. In other areas there are sharp delineations between stream channel and flood plain, and between flood plain and slope. Trees and legumes preferred medium moisture habitats, while forbs, shrubs and succulents preferred the …

An Experimental Examination Of Cautela's Covert Sensitization As A Smoking Reduction Technique, Jerome Irwin Weiss

Theses and Dissertations

Experimental studies investigating the aversive imagery technique of Covert Sensitization as a cigarette smoking deterrent have not clearly testified to its effectiveness. They have either deviated from Cautela’s technique and/or confounded their results by adding other components to it.

The present study tested the hypothesis that the successful results of Covert Sensitization requires both therapist-administered treatment and instructions that Subjects (Ss) also self-administer treatment. The self-administered treatment (homework) consisted of Ss imagining Covert Sensitization scenes twice a day between meetings with the Experimenter (E).

Thirty-six habitual smokers were randomly assigned to one of three training groups; one group of twelve …

The Development And Evaluation Of Individualized, Independently Arranged Study Material For A Third Semester Typewriting Class At Langdon High School, Gary Dean Rath

Theses and Dissertations

No abstract provided.

A Measurement Of Differences In Motor Fitness Performances According To Primary Grade Levels, William Lee Predovich

Theses and Dissertations

The research hypothesis states that children of primary grade school level (K-2), when tested in four areas of motor fitness (agility, speed in running, leg power and balance), will differ in performance scores according to grade; the upper grade will indicate the superior performance.

There were three main objectives of this research project. The first objective was to establish reliability on six motor fitness test items. These test items were: the sprint (measure of speed), the zig zag run (measure of agility), the standing broad jump (measure of leg power), the one legged stand (measure of static balance), and the …

The Development Of Individual Contracts For First-Year High School Bookkeeping And Accounting Classes, Sidney A. Bingaman

Theses and Dissertations

No abstract provided.

A Survey To Determine The Present Number And Types Of Office Machines Used In The Middle Tennessee Area And The Educational Level Requirements In Using These Machines, Nancy G. Boyd

Theses and Dissertations

No abstract provided.

Planning, Programming, Budgeting Systems, Gordon L. Mcconnell

Theses and Dissertations

No abstract provided.

The Relationships Of Achievement Scores In Reading And Language Arts And Selected Variables For Ninth Grade Students In Selected North Dakota Schools, Myra Detweiler Morris

Theses and Dissertations

Problem

The problem was to determine which factors had an effect upon the mean language arts, reading and composite scores reported for ninth grade students in selected accredited North Dakota high schools.

Purpose

The study was designed to:

1. 1. Determine what relationships might exist between achievement scores in reading and language arts, as measured by the Iowa Tests of Educational Development (ITED), and various selected educational and demographic variables.
2. 2. Determine whether and the degree to which change in achievement levels had occurred from 1971 to 1972 and 1973.
3. 3. Determine what differences in mean achievement scores existed between schools …

Ella Deloria: A Biographical Sketch And Literary Analysis, Janette K. Murray

Theses and Dissertations

Ella Deloria, a Dakota born on the Yankton Reservation in 1888, was a teacher, speaker, author, and researcher in linguistics and anthropology. One purpose. of this study ·was to present a description of her family background, education, and career. Most of this information was gathered by interviews with her relatives, friends, former students, and professional acquaintances. A second.purpose was to analyze her writings on the language and culture of the Dakota people and to determine her contributions to existing publications by others.

The ancestors of Ella Deloria played important roles in the history of South Dakota. Her great-grandfather, Philippe des …

A Study Of The Application Of Section 482 Of The Internal Revenue Code To Certain Domestic Transactions Of Related Business Organizations, William Cress

Theses and Dissertations

No abstract provided.

Student Performance And Attitudes In Principles Of Economics, Loren E. Svor

Theses and Dissertations

No abstract provided.

The Influence Of Sex Of Administrator On Independent/Dependent Women In A Problem Solving Situation, Morna R. Pederson

Theses and Dissertations

This investigation was designed to study help seeking behavior among women when they are in interaction with males and females. The behavior of women who differed in the personality traits of dependence and independence was observed. After psychological screening with the Edwards Personal Preference Schedule, sixteen independent subjects and sixteen dependent subjects were placed in an anagram problem solving situation in which it was possible to receive help. For one list of anagrams a male helper was present and for another list, a female helper was present. After completion of the anagrams, the subjects rated on 10-point scales their helpers …

The Effect Of Alpha Brain-Wave Control On The Speech Of Two Adult Stutterers, Randall J. Bjork

Theses and Dissertations

The purpose of this study was to examine, compare and describe the effect of alpha brain-wave conditioning upon the speech of two adult stutterers.

Five sessions of baserate measurement were followed by a sequence of conditioning sessions (in which an electronic brain-wave monitor was used to train subjects to control their alpha rhythms), after which the speech of the stutterers was re-evaluated by a procedure which was identical to the baserate procedure. The four speech activities which were investigated were: reading without feedback of alpha-band brain activity from the monitor, monologue without feedback from the monitor, reading with feedback from …

Comparing The Success Of Former Class "C" Basketball Teams In North Dakota Before And After Reclassification To "B", E. Raymond Gibbons

Theses and Dissertations

No abstract provided.

A Correlation Study Of The Northwestern Syntax Screening Test And The Grammatic Closure Subtest Of The Illinois Test Of Psycholinguistic Abilities, Karen M. Thompson

Theses and Dissertations

The purpose of this study was to examine the relationship between the Grammatic Closure (GC) subtest of the Illinois Test of Psycholinguistic Abilities (ITPA) and both the receptive and expressive portions of the Northwestern Syntax Screening; Test (NSST-R) (NSST-E). Another aim of this study was to obtain an indication as to whether or not these assessments are more strongly a measure of visual or of auditory comprehension.

The subjects included thirty-eight, children selected from Sacred Heart School in East Grand Forks, Minnesota. The subjects were screened according to established criteria and all subjects who failed to meet the requirements were …

The Effectiveness Of Dusting As A Reinforcer For The Chinchilla (Chinchilla Lanigera), Kenneth R. Redman

Theses and Dissertations

The Chinchilla (Chinchilla lanigera) has been observed to frequently roll in fine dust when it is available. It was hypothesized that such material would have strong reinforcing properties to a chinchilla which had been deprived of bathing in dust.

A straight alley runway was used with start latency and running speed to dust in the goal box as the dependent variables. Fifty-four chinchillas were randomly assigned to equal cells of a 3 by 3 matrix in which hours of deprivation and duration of reward varied. Each subject was given ten individual trials .

Results of a three-way analysis of variance …

A Study Of The Cooperative Practices Involving The Use Of Selected Secondary Public School Facilities By The Recreation Commissions In Rural Minnesota, J. Ross Richardson

Theses and Dissertations

The purpose of this study was to survey the use of selected public secondary schools by the recreation commissions in rural Manitoba, to determine the amount of, or lack of, cooperative practices between the school district and the recreation commission in these communities, in regard to the commission's use of the school for community recreation.

A single group non-probability sample of all school superintendents from the rural communities in southern Manitoba, that had a recreation commission and a population of between 800 and 4000 people was employed in this study. The questionnaire method was used with a questionnaire constructed by …

An Investigation Of The Theoretical Relationship Between Personality Factors And Self Concept, Creativity, And Perception Of The Ideal Pupil Among Educators, Shirley Pearson

Theses and Dissertations

Problem: This study investigated selected aspects of teacher personality, teacher self concept, teacher creativity, and teacher perception of the ideal pupil. Attention was given to determining the nature and degree of the relationship between personality, self concept, creativity and perception of the ideal pupil among elementary school teachers.

Procedure: The research was conducted in the Great Falls, Montana Public Schools during the school years 1971-72 and 1972-73. The sample included elementary teachers completing two or more of the instruments used in the study, participating in a Title III, PACE project in-service program.

The following three research questions were proposed and …

Pre-Implementation Evaluation And Refinement Of A Schoolwide Model For Eliciting Parent-Owned Information Regarding School Program Effectiveness, Alfred M. Mcglinskey

Theses and Dissertations

Problem: This study was concerned with the design, evaluation and refinement of a model which would attempt to organize all the parents from a given school, into a structure and process which would enhance, elicit and legitimize parent contributions to the information base utilized in the schools' decision-making processes.

Procedure: The population of the study included (1) Grand Forks residents whose children attend one of two public elementary schools selected for differences in socio-economic variables, (2) the teachers in those schools, (3) all the district's elementary principals and (4) the district's central office administrators. Each member of the population was …

The Relationship Between Market Structure And Bank Performance In North Dakota, David Porchaska

Theses and Dissertations

No abstract provided.

Expanding The Attest Function To Forecasts And Management Audits, Donald C. Johnson

Theses and Dissertations

No abstract provided.

Part I. Catalytic Hydrocarbon Reforming By Technetium Catalysts.|Npart Ii.|Pacetone Azine And 3,5,5-Trimethyl-2-Pyrazoline Adducts Of Palladium Chloride, James Lynn Palmer

Theses and Dissertations

Technetium catalyzes hydrocarbon reforming reactions of dehydrocyclization, isomerization, hydrogenolysis, and coke formation. A kinetic equation was derived and E_a and A_o evaluated for dehydrocyclization of n-heptane, isomerization of n-pentane, and dehydrogenation of methylcyclohexane and cyclohexane. The results were related to the metal, the form of the catalyst, catalyst support, and the deactivation of the catalyst. The effect of sulfur compounds was determined. No residual radioactivity in the product was observed. The ligands, acetone azine (AA) and 3,5,5-trimethyl-2- pyrazoline (Py), reacted with (C_6H_5CN)_2PdCl_2 to form adducts, L_2PdCl_2 and (LPdCl_2)_n. Their structures were characterized by spectroscopic methods and some molecular weights determined. …

Biological Studies On Cryptobia Atraria Sp.N. (Kinetoplastida: Cryptobiidae) In Fishes From The Sevier River Drainage, Utah, J. Stephen Cranney

Theses and Dissertations

Fish culture for both food and sport utilization has been greatly increasing throughout the world. The editor of Fish Farming Industries (1973) predicted an increase by 1977 in the United States of 83% for catfish producers, 49% for trout farmers, and 91% for bait dealers. Concomitant with the renewed interest in fish culture has been a corresponding need to further understand fish diseases.

Metabolism Of 3-Isopropyl-4h-2,1,3-Benzothiadiazin-4-(3h)-One-2,2-Dioxide (Bentazon) In Agitated And Non-Agitated Sediment, David Cortez Gutierrez

Theses and Dissertations

Bentazon, (3-isopropyl-1H-2,1,3-benzothiadiazin-4(3H)-l-2,2-dioxide) a new experimental herbicide, was studied under the effects of sterile and non-sterile conditions, 12 hours light: 12 hours dark and totally dark conditions, and agitated and non-agitated conditions in aquatic sediment. The effects of the different levels of BOD/COD values on the decomposition of Bentazon were studied. Photoperiod, sterility, and BOD/COD levels appeared to have no influence in the breakdown of Bentazon. Agitation-time interaction appeared to be the only factor that influenced the more rapid degradation of Bentazon. Bentazon was the major 14C-residue found in the water; it was followed by an unknown. The third major metabolite …

The Attack Of Hard And Soft Nucleophiles On 6-Methylsulfonyl-, 6-Methylsulfinyl-, And 6-Methylthioaminopteridines, William David Johnston

Theses and Dissertations

In an attempt to prepare 6-anilino and 6-benzylaminopteridines, 2,4,7-triamino-6-methylsulfonyl and 2,4,7-triamino-6-methylsulfinylpteridines were prepared and reacted with a number of benzylamines and aniline. These hard nucleophiles gave amine exchange products with no displacement at the 6 position. Aliphatic amines gave exchange in the 2,4-and 7-positions. The exchange occurring in the 7-position must be occurring by an AE mechanism. This is the first such exchange reported in a ring other than a 1,3-azine. Aniline gave no exchange product except in an acid catalyzed reaction, and then gave exchange in only the 2 and 4-positions. Numerous reactions on related substrates, are reported. Soft …

Relationships Among Personality, Empathic Ability And Counselor Effectiveness, Brian R. Brewer

Theses and Dissertations

Problem

The purpose of this study was to measure personality characteristics and empathic ability of masters level counseling students and then to determine the relationship of these dimensions to independent ratings of their counseling effectiveness. Relationships between personality characteristics and empathic ability were also examined as were differences in personality and empathy between more effective and less effective counselor groups.

Method

The subjects were 34 masters level counseling students enrolled in their first counseling practicum. They completed Form A and Form B of the Sixteen Personality Factor Questionnaire (16PF), the measure of personality, and the Affective Sensitivity Scale, the measure …

The Effects Of Temperature On The Oocysts Of Isospora Canis, Ray Loveless

Theses and Dissertations

Oocysts of Isospora canis, an important protozoan parasite of dogs, must sporulate in the external environment in order to become infective. To determine the tolerance of these oocysts to different temperatures, oocysts ware collected from freshly passed feces, cleaned, and subsequently stored in unsporulated, partially sporulated, and completely sporulated conditions at temperatures ranging from +50 C to -50 C. Observations on survival for each group were determined periodically thereafter at intervals up to 64 days. The rate of sporulation was followed at 6 hr intervals for temperatures of 20, 25, 30, and 38 C. Completely sporulated oocysts ware more resistant …

The Algae Of Huntington Canyon, Utah, Carol Jean Endsley

Theses and Dissertations

A taxonomic study of the algae of Huntington canyon, Emery County, Utah, was conducted from March 1971 to April 1972. The algal flora of this cold, fast-flowing, hard-water mountain creek consisted of ninety-five genera, one hundred ninety-six species, twenty-nine varieties, and two forms. This diverse flora was dominated by many different species with usually rather few individuals of Achnanthes, Cymbella, Diatoma, Gomphonema, Lyngbya, Navicula, Nitzschia, Oscillatoria, Synedra, and Ulothrix.

A Remote Aerosol Sampler To Be Used With Charged-Particle X-Ray Fluorescence Analysis, Steven Dee Rowley

Theses and Dissertations

A remote aerosol sampler, capable of up to 3 weeks continuous sampling has been developed. It consists of an Anderson 2000 Inc. mini-sampler or personnel monitor requiring an air flow of 1.4 e/min, a flow meter, a vacuum meter, a bleed valve, a dry gas volume meter, and a pump. The pump is a Brailsford Model TD-4X2, and operates on a 24 volt D.C. power supply. The sampler consists of four impaction stages with a 0.4 μ Nuclepore backup filter. Particulates are removed from the plates in an ultrasonic cleaner with hexane solvent. The suspended particulates are collected on a …