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Spatial And Temporal Partitioning Between Sympatric Rodents: Zapus And Peromyscus, Emma Bernice Speer

Theses and Dissertations

Partitioning space and time by seemingly sympatric rodents, Zapus princeps and Peromyscus maniculatus, were examined as possible mechanisms allowing coexistence. The two populations were studied in Central Utah with an electrically monitored grid. Spatial separation of individuals and the populations minimized confrontations and created local allopatric distribtuions. Temporal partitioning was not used as a mechanism to allow coexistence and was apparently independent of spatial partitioning. The Peromyscus population was composed primarily of males which may have been due to less favorable habitat and/or presence of Zapus. The data show that Peromyscus tend to avoid Zapus, possibly due to deleterious aggressive …

Voltammetric And Electrochemical Kinetic Studies Of The Halides And Halogens At A Platinum Rotating Ring-Disk Electrode In Anhydrous Acetic Acid, Donald Harrison Cranney

Theses and Dissertations

The electrochemical behavior of the iodine-iodide couple was investigated in both basic and neutral acetic acid solutions at a platinum rotating ring-disk electrode. Voltammetric curves were obtained and discussed. Various kinetic parameters were determined and by comparing to theoretical kinetic parameters a probable reaction mechanism was deduced. The mechanism that best fit experimental results is the following I- + S = I(S) + e- I(S) + I- = I2 + S + e (slow). The electrochemical behavior of bromine, bromide, and chloride was also investigated in the same media. Voltammetric curves were recorded and discussed with emphasis on the hysteresis …

The Snowy Egret (Egretta Thula Brewsteri) A Life History Study At Utah Lake With Comments On The Subspecies Status, Gerald Leigh Gunnell

Theses and Dissertations

This study was conducted to augment the limited information available regarding the Snowy Egret in the Utah Lake area of Utah. Field observations included the following: nesting habits; egg and clutch sizes; sexual, defense, and feeding behaviors. Analysis was made of the distinguishing subspecies characteristics (culmen, tarsus, and wing length) of the Snowy Egrets and of the distribution of the birds. Field observations showed that growth measurements of the young varied from 16.75 g at hatching to 260.58 g after 17 days. Culmen and tarsus measurements were 15.41 mm and 14.12 mm to 53.18 mm and 62.18 mm, respectively, after …

Defense Mechanism And Feeding Behavior Of Pteraster Tesselatus Ives (Echinodermata, Asteroidea), James Milton Nance

Theses and Dissertations

Pteraster tesselatus is noted for its external secretion of massive amounts of mucus. The mucus repels most animals, and fouls their respiratory physiology, if contact is maintained for any length of time. It provides protection essentially 100% of the time from Solaster dawsoni and Pycnopodia helianthoides, the only local stars that attempt to feed on Pteraster. The mucus, which is a simple mucopolysaccride, is produced in three different types of unicellular glands located in the epidermal tissues along the supradorsal membrane. Pores along the lateral walls of the ambulacral grooves provide fresh sea water for the dermal branchiae contained in …

Influence Of Preharvest Ethephon Applications On Ripening Of Japanese Plum (Prunus Salicina), George Marvin Leavitt

Theses and Dissertations

Ethephon, applied to two plum cultivars, 'Queen Rosa' and 'El Dorado' , at 50 and 100 ppm, gave varying responses on the ripening process. Soluble solids remained unchanged while acid levels dropped. Increased ethylene evolution, color advancement and decreased flesh pr observed.

A Study Of Professional Schools Of Accountancy, Judith G. Mclean

Theses and Dissertations

No abstract provided.

The Nature Of Audit Evidence And The Role Of Statistical Sampling In The Gathering Of Sufficient And Competent Evidential Matter, Wayne G. Kindem

Theses and Dissertations

No abstract provided.

Judgment Analysis And Learning Disabilities: An Empirical Procedure For Construct Explication, Walter S. Mabee

Theses and Dissertations

Purpose: The purpose of this study is the exp1ic ion of the learning disability (LD; construct. Construct explication is a process whereby an abstract variable is made explicit in terms of concrete variables. The purpose of this construct explication is to provide a description as opposed to a cause of the phenomena of learning disabilities.

Research: This study was designed to answer the following research questions: 1. Does a relationship exist between the selected profile variables and each criterion? Which variables are most useful for prediction by this group of LD specialists? 2. Does a relationship exist between the three …

An Investigation Of Modal Auxiliary Verb Acquisition By Children Three To Seven Years Of Age, Cheryl Rae Mayer

Theses and Dissertations

The present study was designed to investigate the performance of twenty-one modal and quasi modal auxiliary verbs by normally-developing children aged 3-0 to 6-11 years on two experimental tasks involving each an imitated and elicited language task.

A one-hundred utterance elicited language task in response to toy and picture stimuli and a seventy-eight sentence imitation task were administered to fifteen subjects at each of the four age levels: 3-0 to 3-11 years, 4-0 to 4-11 years, 5-0 to 5-11 years, and 6-0 to 6-11 years.

Statistical analysis of the performance of the four subject groups revealed significant differences among subject …

Experiments And Observations In Painting And Serigraphy, Steve R. Garner

Theses and Dissertations

This thesis discusses the concepts and techniques I used while a graduate student in painting and printmaking.

In the area of painting I have utilized many diverse methods and materials. I discuss the actual painting application and the special surface I prepared to paint on. In application, I dwelled on studying the bleeding of one color through another with oil base paints. I could control the bleeding process by altering the application techniques through the use of different applicators. The special surface I prepared was made up of styrofoam insulation board, lathe stripping and cotton fabric. The complete preparation of …

The Intermolecular Potential And Vibrational Relaxation Of The Ar-Co System, Gregory Allen Parker

Theses and Dissertations

The angle, distance and vibration dependence of the Ar-CO intermolecular potential is calculated using the electron gas model to obtain the short range interaction which is smoothly joined onto the long range van der Waals tail which is obtained from accurate C_6, C_7, and C_8 coefficients. Our calculated second interaction virial coefficients are compared with experiment and with a simple adjustment of the Ar-CO potential an excellent agreement is obtained. Our spherically averaged potential is also in excellent agreement with a spherical potential inferred from high energy scattering data. Simplified expressions for the scattering amplitude and differential cross section are …

A Comparison Of Free Radical Detection Methods, Danny Kiang-Wah Pan

Theses and Dissertations

The methods used for free radical detection are chemical titration, spectrophotometry, Gouy magnetic measurements and NMR shift technique. The free radicals chosen for this study are Fremy' s salt (ON(SO_3 )K_2),2,2-diphenyl-1-picryl hydrazyl (DPPH) 3-carbamoyl-2,2,5,5-tetramethylpyrrolidin-1-yloxy (CTM-pyrrolidin), 3-carbamoyl-2,2,5,5-tetramethyl-3-pyrrolin-1-yloxy (CTM-pyrrolin), 4-acetamido-2,2,6,6-tetramethylpiperidino-1- oxyl (ATMP) and galvinoxyl. The detectable range for each method is given. The NMR method is a fast and convenient method for the magnetic susceptibility determination of a sample in solution, with. accuracy up to ± 1%.

The Cryptogamic Flora Of Desert Soil Crusts In Southern Utah, Davic C. Anderson

Theses and Dissertations

The cryptogamic flora of several soil crusts of arid regions in southern Utah was determined. Twenty-two lichens, Six mosses and fifty-four algal species were identified and their relative abundance estimated.

Efficacy Of Zoalene And Clopidol In Dogs Experimentally Infected With Isospora Canis, James Carson Brown

Theses and Dissertations

Isospora canis (Protozoa:Nemeseri, 1959) is an important coccidian parasite of domestic dogs. Ingestion of the sporulated oocysts causes the release of sporozoites which invade the epithe-lial lining of the intestine. Schizogony and gametogony take place in the epithelial tissue resulting in a massive proliferation of the parasite and extensive destruction of the intestinal cells (Lepp and Todd, 1974). Severe infections cause loss of appetite, diarrhea and dysentery (Levine, 1973).

A Phylogenetic Study Of The Suffrutescent Shrubs In The Genus Atriplex, C. Lorenzo Pope

Theses and Dissertations

Growing on dry saline soils throughout the Intermountain Region of the United States is a group of herbaceous, perennial species of Atriplex, including A. corrugata, A. cuneata, A. cuneata ssp. Introgressa, A. falcata, A. gardneri, A. tridentata, and A. welshii, designated as the Atriplex gardneri complex. Highly adaptive and competitive in the arid salt deserts, these species are valuable as forage for livestock and wildlife. Because of extensive variation present within this complex, considerable taxonomic confusion has resulted. To clarify taxonomic and phylogenetic relationships, selected populations and plants were analyzed morphologically, cytologically, ecologically, phenologically, and genetically. Polyploidy is common within …

A Potentiometric Method, A Convenient And Rapid Technique For Determination Of The Thermodynamics Of Ionization Reactions For Water, Weak Acids, And Some Slightly Soluble Salts In Aqueous Organic Mixed Solvents, Charanai Panichajakul

Theses and Dissertations

A potentiometric method which is devised to be rapid and convenient for determining ionization constants for water, weak acids (or bases), and certain solids in mixed solvents is described. The method has been applied to the determination of ionization for water, acetic acid, benzoic acid, and phenol and the solubility product constant for silver chloride in mixtures of water with methanol, ethanol, acetone, tetrahydrofuran, and p-dioxane containing from 0 to 70 mass percent organic co-solvent at several temperatures between 10 and 40°C. Results are used to study the thermodynamics of ionization in each mixture which is discussed relative to various …

Effects Of Human Relations Training On The Social, Emotional, And Moral Development Of Students, With Emphasis On Human Relations Training Based Upon Religious Principles, Stephen R. Covey

Theses and Dissertations

The effects of human relations training on 222 students in organizational behavior labs were measured in this study. Eighty students were randomly assigned to one of four sections taught by the same instructor--two traditional sections and two stewardship sections-in a Solomon Four-Group Experimental Design. The two stewardship sections used individualized goal selection and accountability procedures with discussions and readings incorporating religious principles. Four data-gathering instruments were used to measure the social, emotional, and moral development of the students . A one-way analysis of variance on pre- and posttest questionnaires from all 222 students showed no significant differences among any of …

Evaluation Of Anhydrous Ammonia As A Control Of Northern Pocket Gophers Thomomys Talpoides On Rangelands In The Wasatch Mountain, Utah, Marc C. Wride

Theses and Dissertations

Anhydrous ammonia (NH3) was tested as a potential replacement for residual, non specific toxicants as an effective control agent. It was postulated that NH3 would effectively control northern pocket gophers (Thomomys talpoides) and also act as a fertilizer for rangeland vegetation. Compound 1080 was selected as a standard for comparison of gopher control efficiency. Over 700 burrow systems were treated or monitored. Results showed compound 1080 to be 81 percent and NH3 45 percent efficient in controlling gophers. Although fertilizing effects of NH3 were positive, the low control efficiency and high application costs make NH3 an unlikely replacement for the …

Program Budgeting In Institutions Of Higher Education, Daniel Danielson

Theses and Dissertations

No abstract provided.

Quality Control Through Coordination With Existing Auditing Standards, Donald E. Berg

Theses and Dissertations

No abstract provided.

The Development Of International Accounting Standards, Deeann L. Thompson

Theses and Dissertations

No abstract provided.

The Relationship Of Audit Working Papers To The Audit Engagement, Michael B. Walsh

Theses and Dissertations

No abstract provided.

Considerations Involving The Ascertainment Of Contingent Legal Liabilities In The Audit Process, John C. Berg

Theses and Dissertations

No abstract provided.

Bionomics Of Two Aspen Bark Beetles : Trypophloeus Populi And Procryphalus Mucronatus (Coleoptera:Scolytidae), Jerold L. Petty

Theses and Dissertations

Beetles of Trypophloeus populi attacked green bark of unhealthy aspen (Populus tremuloides) and hastened the death of the tree. Beetles of Procryphalus mucronatus favored dead bark and were of little significance in the death of the aspen. These two beetle species were distinguished from each other by their primary galleries, eggs, larvae, larval mines, and mating behavior. In T. populi, there were three larval instars and one to one and one-half generations per year; only larvae overwintered, and the eggs of the first generation were present by mid-July. In P. mucronatus, there were two larval instars and one and one-half …

Solid-Liquid Phase Equilibria In Systems Of (I) Para-Xylene, (Ii) Mesitylene, And (Iii) N,N-Dimethylformamide ; Excess Volume Determination In Systems Containing Cyclohexane ; Calculations Of Activities For The N-Hexane + Cyclohexane System, John F. Moellmer

Theses and Dissertations

Solid-liquid phase equilibria studies were used to investigate possible compolllld formation in solutions of (i) para-xylene, (ii) mesitylene, and (iii) N,N-dimethyl-formamide (DMF) with mono- and di- halobenzenes that were selected to give a wide range of acceptor properties. Solid 1:1 intermolecular compounds were identified from solutions of p-C_6H_4F_2 with mesitylene, p-C_6H_4Br_2 with p-xylene, and p-C_6H_4Cl_2 with p-xylene. The results suggest that compound formation occurs because of favorable geometry rather than a charge transfer process. A vibrating tube densimeter was used to determine, with high precision, the densities and subsequently excess volumes of mixing of the n-hexane plus cyclohexane system. Temperature …

Endoparasites Of Cats In Two Central Utah Communities, Thomas W. Sawyer

Theses and Dissertations

A survey of the endoparasites of 100 stray cats in central Utah was conducted. Each cat was euthanized, and the entire alimentary tract, gall bladder, bile duct, heart, respiratory and excretory systems were excised and examined for endoparasites. Fecal samples were examined by a sugar flotation technique. Parasites identified and number of cats infected were: Isospora felis 5; I. rivolta, 4; Dipylidium caninum, 1; Hydatigera taeniaformis, 10; Toxocara mystax, 43; and Physaloptera sp., 2. One ectoparasite, Cheyletiella parasitivorax, was identified in the feces of 4 cats. Dipylidium caninum and T. mystax are known to cause accidental infection in humans and …

The Shade-Grown Tobacco Industry In The Connecticut Valley, Walter A. Upham

Theses and Dissertations

This independent study examines the Shade-grown Tobacco Industry in the Connecticut Valley. This study follows the historical development of the cigar wrapper tobacco in the region. It details the current production methods and evaluates the structure of the industry. This study also presents some of the new methods appearing the the industry and will focus upon what may be the future of the industry

The interviews conducted with Mr. Anthony F. Amenta, executive director, Shade Tobacco Growers Agricultural Association, Incorporated and Mr. Raymond Garcia, general manager, Windsor Shade Tobacco Company, provided invaluable information concerning the present structure and marketing practices …

The Frontier Judicial System Of Dakota Territory, 1861-1873, Bernard F. Hyatt

Theses and Dissertations

It is Lae purpose of this thesis to systematically study in detail the Dakota judicial system as related to its historical background and its formative frontier years from 1861 to 1873. It is an attempt to reveal the true nature of the judicial system and the people involved during this period.

The method used is a thorough research of available materials of the period under consideration. This is done in order to study the judicial system's historical background and that system itself--which includes its court structure, personnel, sessions, and cases. The basic research materials used are: (1) federal and territorial …

Relationship Between Student Participation In A Secondary School Reading Program And Selected School Performance Variables, Marylin Jean (Walter) Guy

Theses and Dissertations

Problem: The purpose of this study is to investigate four questions: 1. Are Students' reading achievement gains that are attained through participation in a remedial reading program during the sophomore year retained thoughout high school? 2. Does participation in a secondary remedial reading program affect students' general school-related behavior? 3. What benefits do students perceive from participating in a remedial reading program? 4. What recommendations can be made to improve the existing remedial reading program at Red River High School in Grand Forks, North Dakota?

Identified from reading achievement and nonverbal IQ scores and selected from the 1973-74 sophomore class, …

A Revised County Budget Report From For North Dakota Counties, Micheal E. Zainhofsky

Theses and Dissertations

No abstract provided.