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The Characterization Of Carbamate Resistance In The Colorado Potato Beetle, Leptinotarsa Decemlineata (Say), In Comparison With The House Fly, Musca Domestica (L), Randy L. Rose

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Resistant and susceptible populations of the Colorado potato beetle, Leptinotarsa decemlineata (Say), and the house fly, Musca domestica (L), were compared with respect to carbofuran and carbaryl toxicity in the presence and absence of the synergist, piperonyl butoxide. Resistance levels of the New Jersey population when compared with the susceptible Logan population by topical application of carbaryl and carbofuran were > 833 and 820, respectively. A resistance level of 583 was determined from carbofuran bioassays of Rutgers and NAIDM house flies. Similar levels of resistance development between these species suggests the possibility that similar resistance mechanisms may be involved.

Utilization of …

A Revision Of The North American Species In The Genus Euodynerus (Hymenoptera: Eumenidae), Ali Shallan Moalif

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Twenty-eight species of Euodynerus Dalla Torre are recognized from the Nearctic Region, of which one is Holarctic. Literature on the biology of fourteen species is reviewed and new biological information discussed for four species. The phylogenetic relationships of the genus Euodynerus to other genera and the classification and relationships of the species of Euodynerus are discussed. Seven subgenera are recognized of which four are new: Euodynerus, Pareuodynerus Bluethgen, Leucodynerus Bohart, Annodynerus new subgenus, Gonodynerus n. subgenus, Holodynerus n. subgenus and Plecodynerus n. subgenus. Their comparative morphology, phylogeny, and distrubution are discussed. Larval instars of E. hidalgo (Saussure), E. scutellaris …

Nonpoint Source Transport Model For Indicator Bacteria From Western Rangeland Watersheds, Everett P. Springer

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Grazing is a primary land use in much of the western United States, but little is known about grazing impacts on water quality. The most sensitive water quality indicators of grazing are the fecal indicator bacteria. The objective of this study was to develop a general transport model describing the movement of fecal indicator bacteria from upland sources to channel systems.

Model development was done using simulated rainfall and a runoff surface 30.48 m by 1.83 m.

Initially the runoff surface was smooth concrete and was used to examine the effects of distance from the outlet on coliform counts by …

Numerical Methods (Finite Element) For Time-Dependent Partial Differential Equations, Masaji Watanabe

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This paper surveys reasons why the Ritz method and the Galerkin method are not efficient and why these methods can not be applied directly, for time dependent problems. It also introduces methods that are used for those problems. For a linear boundary value problem defined by a positive definite symmetric (self-adjoint) operator, the existence and the convergence of the Ritz approximation are guaranteed. In non-symmetric case, Lax-Milgram lemma assures the existence and the convergence of the Galerkin approximation for H1/2(Ω)-elliptic operator. Since time-dependent problems are hyperbolic or parabolic, the existence and the convergence of approximations by those methods are not …

Linear Regression Of The Poisson Mean, Duane Steven Brown

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this thesis was to compare two estimation procedures, the method of least squares and the method of maximum likelihood, on sample data obtained from a Poisson distribution. Point estimates of the slope and intercept of the regression line and point estimates of the mean squared error for both the slope and intercept were obtained. It is shown that least squares, the preferred method due to its simplicity, does yield results as good as maximum likelihood.

Also, confidence intervals were computed by Monte Carlo techniques and then were tested for accuracy. For the method of least squares, confidence …

Population Characteristics And Movement Patterns Of Cougars In Southern Utah, Thomas P. Hemker

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Movements of 22 cougars (Felis concolor) were monitored by radio-telemetry between January 1979 and July 1981 in southern Utah. The population, composed of resident, transient, and juvenile cougars, remained relatively constant in size for 3 years. Densities (0.4-0.5 cougars/100 km²) were considerably lower than has been reported elsewhere. Average annual home area size of resident females (685 km²) and a single resident male (826 km²) were substantially larger than other home area sizes reported. Home areas of resident females overlapped and resident male home areas may have overlapped as well. Despite the …

Reproductive Behavioral And Physiological Traits In Domestic, Wild, And Hybrid Ovis, Kara-Lynn Crocker-Bedford

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study was part of a program to develop new genotypes of sheep (Ovis spp.) and goats (Capra spp.) which are more useful for food and fiber production. The study examined the influence of domestication on behavioral and physiological traits of ewes and lambs, the influence of a single or twin offspring on ewe and lamb behaviors, and general relationships between ewes and lambs during the lambs' first month of life.

Domestication has caused the intensities of observed traits to diverge greatly from the tendencies shown by wild populations. Domestication has produced increases in measurements associated with maternal …

Cougar Predation And Ecological Energetics In Southern Utah, Bruce Bennet Ackerman

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Diet of cougars (Felis concolor) was studied from December 1978 to August 1981, on a 4500 km2 study area near Escalante, Utah. Prey eaten was determined from analysis of 112 animals consumed as prey, and from 239 cougar scats. Mule deer (Odocoileus hemionus) were the major prey item, comprising 81% of biomass consumed. Lagomorphs, large rodents, and smaller predators were also important components. Cattle comprised <1% of the diet, although commonly grazed on the cougar's summer range. Adult male and juvenile (<1yr) mule deer were killed more often than expected, in fall (P<0.10) and in winter (P<0.005). Cougars were a major cause of mortality of adult deer (41% of all adult female deaths, 35% of male), but only 6% of mortality of juveniles. Selection of prey seemed to be a function of prey vulnerability, rather than one of active choice by the predator.

Motion-sensitive radio-transmitters were placed on 15 cougars, from 3 months to 7-9 years of age. Three parameters of the radio signal were used to determine activity levels during 6843 …

Petrology Of The Middle Cambrian Blacksmith Formation, North-Central Utah, Howard William Hay Jr.

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The dolostones and dolomitic limestones of the Middle Cambrian Blacksmith Formation were studied in the Bear River and Malad Ranges and the Wellsville Mountains of north-central Utah. The depositional textures and sedimentary structures retained within the rocks form the basis of subdivisions of measured sections, interpretation of depositional paleogeography, and reconstruction of environments.

Other studies of modern carbonate environments and their ancient analogues provided the basis for interpretation of the depositional textures found within the rocks of the Blacksmith Formation. Four identifiable lithofacies were recognized within the study area. These facies include: (1) oolite shoal; (2) restricted lagoon; (3) low- …

Scanning Electron Microscopic (Sem) Studies On Range Grasses And Their Resistance To Black Grass Bugs, Yun-Hwa Ling

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Large populations of black grass bugs, Labops hesperius Uhler, have been observed on extensive acreages of range lands. These bugs cause severe damage to the range grasses, lowering their palatability and productivity. This study was to determine whether morphological differences among breeding lines of grass species or interspecific hybrids could be correlated with the feeding behavior of black grass bugs. If so, plant breeders should be able to develop resistant cultivars. To explore this possibility, cultivars and synthetics of range grasses, representing the genera, Agropyron, Dactylis, Phalaris and Poa, were exposed to different instar stages (II and …

A Study Of Cell Dimensions, Amyloplast Position And Certain Physiological Responses During Gravitropic Bending Of Dicot Stems, Julianne E. Sliwinski

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

If a plant is positioned horizontally, the elongating region responds by bending upward within 10 to 12 h until it is vertical, forming a 90 bend with the stem below. If a Xanthium strumarium L. (cocklebur) plant is placed horizontally, but restricted to that position for 48 h and then released, the bend to the vertical usually takes place within 10 s, suggesting that bending energy is stored in restricted stems. Some plants that do not bend completely to 90° within 10 s do so within 5 min, and other plants can overshoot the 90 mark by as much …

Influence Of Phosphorus And Water Management On Mycorrhiza And Rhizobia In Symbiosis With Legumes, David C. Ianson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Mycorrhizal associations are very important to plant growth. This is mainly due to the hyphal stands that are able to utilize concentrations of nutrients that would normally be considered unavailable for plant growth, especially phosphorus. These associations are of great importance in soils that have been disturbed by mineral extraction and are consequently low in available nutrients. The ability of mycorrhizal fungi to form associations on disturbed sites may be dictated by a number of factors: moisture, soil pH, soil fertility (including heavy metal ions), salinity, and plant response.

Two factorial experiments were conducted with the legume Hedysarum boreale cv …

Effects Of Intermittent Reinforcement Upon Fixed-Ratio Discrimination, Tore Lydersen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Four pigeons had discrimination training that required the choice of a left side-key following completion of a fixed-ratio 10 an the center key, and a right side-key response after fixed-ratio 20. Correct choices were reinforced on various fixed-interval, fixed-ratio, random-interval, and random-ratio schedules. When accuracy was examined across quarters of intervals (fixed-interval schedules) or quarters of median interreinforcerrent intervals (fixed-ratio schedules), accuracy was usually laver in the second quarter than in the first, third, or fourth quarters. When accuracy was examined across quarters of ratios (fixed-ratio schedules) or quarters of median number of correct interreinforcement trials (fixed-interval schedules), accuracy increased …

An Experimental Analysis Of The Stimulus-Reinforcer Relations In Matching-To-Sample, Roger C. Lubeck

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study investigated the stimulus-reinforcer relations possible in matching-to-sample, and determined the extent that each relation contributed in the transfer to subsequent matching-to-sample. Fifty three homing pigeons were autoshaped on a single key, with two stimuli, red and green. Forty eight subjects were then divided equally in 12 groups receiving the experimental treatments, and five subjects served as no-treatment controls. Group assignments were first based on autoshaping to either an identity, non-identity, or identity and non-identity stimulus relation. Each stimulus relation consisted of a center stimulus followed by an outer key stimulus. For identity, the center and outer stimuli were …

Autonomic Self-Control Of Clinical Relaxation As A Function Of Imagery, Dean G. Allen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this dissertation was to test the significance of objectively measured imagery ability on the learning of self-controlled relaxation of autonomic nervous system activity. Imagery is discussed in terms of its interaction with Autogenic vs. Jacobsonian methods of training clinical relaxation.

Thirty-six female subjects from a college population, representing extreme highs and lows on "spatial ability" tests were given a series of three six-session sequences of Baseline, Treatment 1, and Treatment 2, which contained silent relaxation as a control, plus Jacobsonian and Autogenic relaxation. High and low spatial ability subjects were divided into split groups (A & B) …

The California Psychological Inventory And Intrinsic-Extrinsic Religious Motivation, Ken Small

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The focus of the study was to investigate the nature of the apparent inconsistency reported in the literature on the relationship between personality variables and indices of religiosity. The literature indicates that indices of religiosity have been associated with labels both of "desirable" and "undesirable" personality traits to varying degrees, and no definitive conclusions have been thus far reached. The study suggested that the inconsistent evidence has been a result of a narrow definition of personality functioning and a broad definition of religiosity that has not allowed an adequate test of the relationship between personality and religiosity. The study developed …

The Use Of Sensory Predicates To Predict Responses To Sensory Suggestions, James M. Talone

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A scale consisting of eight suggestions worded with specific sensory predicates was administered to a large undergraduate introductory psychology class. Following the presentation of the suggestions, Self-Scoring Forms were filled out to assess the subjects' response to auditory (A), visual (V), and kinesthetic (K) suggestions. Prior to the conclusion of the session, subjects were asked to write a brief essay describing their experience of the suggestion portion of the session. Subject essays were content analyzed for the use of predicates (including, but not only A, V, and K). Frequency of usage of A, V, and K predicates were compared with …

Word Associations And The Bilateral Electrodermal Responses Of High And Low Repressive Females As Measured By The Mmpi R Factor Scale, Peggy J. Poe

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

On the basis of the MMPI R Factor Scale, 16 subjects were classified as high repressed and 14 as low repressed. Subjects were compared on patterns of bilateral differences in skin conductance as a function of three cognitive tasks intended to produce specific manipulations in the relative activation of the two cerebral hemispheres. Tasks 1 and 2 examined the effects of Verbal (left hemisphere) and Spatial (right hemisphere) tasks on amplitudes of electrodermal responses. Task 3 examined the effects of the presentation of double-entendre and asexual stimulus words (designed to produce an emotional stimulus) on the high and low repressed …

A Mass Media Campaign To Promote Divorce Adjustment, James C. Gardiner

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Introduction. This study produced and evaluated a mass media campaign designed to promote emotional adjustment to divorce.

Hypotheses. (a) Sending a promotional newsletter to divorced persons will increase their reported utilization of the campaign. (b) Divorced persons who report heavy utilization of the campaign will report greater emotional improvement than divorced persons who report light or no utilization of the campaign.

Method. A field experiment was conducted in rural northern Utah. The names of all recently (less than 12 months) divorced persons were obtained from the county clerk and randomly divided into an experimental group, who received a newsletter promoting …

Predicting Length Of Stay And Outcome In Long-Term Residential Treatment Of Male Alcoholics, Robert Dombey Wadsworth

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purposes of this study were: (1) to determine which characteristics of male alcoholics are related to treatment success and length of stay in long-term treatment, and (2) to assess the efficacy of predicting outcome and length of stay on the basis of patient characteristics, The study was performed post hoc on 265 patients discharged from a 6- to 12-month residential alcoholism program on the grounds of a state hospital. After an extensive literature review, 19 predictor variables were selected which were most consistently related to outcome and length of stay in previous studies of shorter rehabilitation programs. Data for …

Petrology Of The Lower Middle Cambrian Langston Formation, North-Central Utah And Southeastern Idaho, Gary Jay Buterbaugh

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The Lower Middle Cambrian Langston Formation was studied in the Bear River Range of north-central Utah and southeasternmost Idaho and the Wellsville Mountains of north-central Utah. The depositional textures and sedimentary structures preserved within the rocks were compared with characteristics of similar modern sediments and ancient rock to determine environments of deposition, paleogeography, diagenetic alteration and pattern of dolomitization.

The rocks of the Langston Formation were divided into eleven different rock types. These eleven rock types were formed within four recognizable lithofacies: 1) upper peritidal; 2) inner carbonate shelf; 3) inner clastic shelf; and 4) outer clastic shelf.

The general …

Muskrat Population Levels And Vegetation Utilization: A Basis For An Index, Thomas R. Mccabe

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Muskrats (Ondatra zibethicus) are associated with marshlands throughout North America. Their impact on marsh vegetation is well documented. In recent years, research pertaining to marsh ecosystems has emphasized the role of interspersion of marsh vegetation to higher faunal diversity and productivity. Muskrats can provide a natural control of aquatic emergents if managed properly. Experimentation at Fish Springs National Wildlife Refuge, Utah, has attempted to ascertain whether vegetation-utilization index could be used for determining muskrat population levels and to evaluate the impact of muskrats on their primary food resource, Olney's bulrush (Scirpus americanus).

Three known populations of …

Evaluation Of Allergic Hypersensitivity To 2,4-D, Malathion, And Captafol In Mice, Janette R. Cushman

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

2,4-D-specific IgE antibodies were detected in serum of BALB/c mice using the rat passive cutaneous anaphylaxis (PCA) test following the second intraperitoneal immunization with 1, 10, or 100 ug of 2,4-D0keyhole limpet hemocyanin (KLH) conjugate administered with aluminum hydroxide adjuvant. The groups that received 1 ug of 2,4-D conjugate had the highest antibody titers (geometric mean of 60). A paper radioallergosorbent test (PRAST) was developed for determination of 2,4-D-specific IgE. The PRAST was equally as sensitive as and showed a positive correlation with the PCA assay.

The anhydride of the diacid metabolite of malathion (MMA) coupled to KLH elicited MMA-specific …

The Effect Of Rain Leaching On Field Dried Alfalfa Hay Yield And Lamb Production From The Hay, John M. Kaykay

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A 2 x 3 x 2 factorial arranged split plot experiment was used to determine the decrease of dry matter yield from field-dried alfalfa hay caused by the application of a measured quantity of artificial rain (sprinkling irrigation). The three hay treatment factors were (1) alfalfa hay was cut at late vegetative and early bloom stage of maturity and (2) leached by 0, 5 mm or 20 mm of artificial rain applied by sprinkling and (3) sprinkled in the swath, 24 or 48 hours after cutting.

Changes in dry matter yield were not significantly (P < .05) related to stage of maturity of forage, level of artificial rain applied or the time of application of artificial rain. There were no significant interactions for dry matter yield. The non-significant results were probably due to the variability of the alfalfa stand among the specific areas harvested for each treatment and insufficient replications to control the variability.

Forty-eight lambs were fed for …

Economic Impacts Of Water Conservation Measures In Agriculture And Energy Within The Upper Colorado River Basin, Douglas R. Franklin

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The demand for water is increasing in the western United States. Coupled with growing emphasis on development of the western resources, the limited supply of water will create an expanding competitive market for water by agricultural, energy, industrial and municipal users.

The Upper Colorado River Basin is faced with a question of what water conservation measures in the agricultural and energy sectors can be instigated without reducing agricultural output. If the decision is made to adopt water conservation technology measures, this study addresses the impacts in the private and public investment sectors under alternative public policies, i.e., regulation or non-regulation …

Nutrient Requirements Of Ruminants In Developing Countries, Leonard C. Kearl

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This book was assembled using the latest information for compiling the nutrient requirements of sheep, goats, cattle and water buffalo. Because of the complexity of the interactions between an animal, its diet, its physiological state, and the environment; the values depicting the nutrient requirements are estimates and not absolutes. These values, however, are considered to be adequate to meet the minimum requirements of healthy animals maintained in a thermoneutral environment.

The mean energy and protein values used in the nutrient tables were arrived at from combining values found in the literature and those provided in personal communication with animal nutritionists …

The Ontogeny Of Thermoregulation And Its Relation To Parental Attentiveness In Red-Tailed Hawks (Buteo Jamaicensis) And Swainson's Hawks (Buteo Swainsoni), John Stephen Kirkley

Biology

This study examines the development of thermoregulation in nestling Red-tailed Hawks (Buteo jamaicensis) and Swainson's Hawks (Buteo swainsoni). Nestlings raised in captivity were exposed daily for 30 minutes to two sets of cold conditions (16°C and 5.5°C) and for 20 minutes to an artificial radiation load (1cal/cm2/min) plus a gradually rising ambient temperature (12 to 23°C). Body temperature changes during these tests were compared to nestling age, body weight, tarsal length, plumage depth, and the length of the seventh primary feather using stepwise multiple regression analyses. The analyses generally indicated that nestling age was the single most important variable in …

Experimental Insights On Factors Affecting The Distribution Of Phacelia Cookei Constance And Heckard, A Narrow Endemic, Susan Horner-Till

Biology

The germination and dispersal ecology of Phacelia cookei, an annual plant under review for Federal Endangered plant status, was studied in relation to its occurrence in disturbed habitats. Within the range of disturbed habitats presently available in the study area Phacelia cookei is restricted to sites of visible human disturbance (especially roadbanks and areas of recently cleared vegetation) in field surveys. The natural habitat is an enigma. Animal trails and burned areas represented the only sites of non-human disturbance with which P. cookei may be associated. Seven to eight plants were found at two sites in animal trails. Several plants …

Magazine Training Trials And Context Effects On Autoshaping, Fernando G. Oberdieck

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In the autoshaping preparation subjects are exposed to magazine training (US-only trials) prior to the conditioning phase in which a stimulus (conditioned stimulus, CS) predicts the delivery of a response independent reinforcer (unconditioned stimulus, US). Two experiments examined the hypothesis that irrespective of the number of US-only trials administered the magazine training and autoshaping contexts interact to determine conditioning, as measured by contact responses to the CS. The contexts employed were houselight on (light, L) and houselight off (dark, D).

In Experiment I pigeons were exposed to 1, 20, 100, or 900 US-only trials in a D, or L, context …

Feminine Development: The Relationship Between Identity Status, Personality And Social Influence Style, Doris Anne Read

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purposes of the present research were to investigate the potential relationships between ego identity development, personality characteristics and social influence styles in college women. It was hypothesized that advanced identity development would be associated with more complex personality functioning and effective social influence behavior. Research subjects were classified according to identity status using The Objective Measure of Ego Identity Status. They responded to the Test of Attentional and Interpersonal Styleand engaged in a social influence task with a male or female confederate. The advanced statuses generally demonstrated more complex social-cognitive styles that allowed them to both process large amounts …