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Ordovician Corals Of The Williston Basin Periphery, Frank P. Caramanica

Theses and Dissertations

Tabulate and rugose corals are described from the Ordovician Red River) Stony Mountain, and Stonewall Formations in southern Manitoba and the Ordovician Bighorn Formation in northern Wyoming. Fifty-four species, 12 of which are new, are distributed in 20 genera. The Flower Model of coral evolution, based on wall microstructure of colonial corals, is extended to include the septa! Microstructure of colonial and solitary corals. "Primitive" corals are characterized by non t-rabeculate walls and septa whereas "advanced" forms are characterizedby trabeculate walls and septa. "Mid-range" corals are those with intermediate stages of trabecular development in walls .and septa. Corals in the …

Effects Of Ethanol On Amino Acid Absorption By The Rat Small Intestine, Craig B. Fabel

Theses and Dissertations

No abstract provided.

The Mutagenicity Of Ddt In Laboratory Mice, Kenneth D. Larsen

Theses and Dissertations

No abstract provided.

The Fine-Structure Of The Developing Chorioallantoic Placenta Of The Mouse., Robert Scott Pope

Theses and Dissertations

No abstract provided.

A Comparative Analysis Of National Employment Patterns As Perceived By Minority And Non-Minority Bachelor-Degree Business Education Graduates Of 1972., Nellie J. Smith

Theses and Dissertations

No abstract provided.

Some Ecologic Relationships In An Anaerobic-Aerobic Experimental Waste Treatment System., Gordon M. Fillipi

Theses and Dissertations

No abstract provided.

A Study Of Fine-Structural Changes In The Cartilage-To-Bone Transition Within The Developing Chick Vertebra., Robert Stanley Crissman

Theses and Dissertations

No abstract provided.

Benzene Photochemistry. A Study Of The Alpha-Cleavage., Daniel R. Dutton

Theses and Dissertations

No abstract provided.

The Growth Of Unit Collagenous Fibrils In The Chick., Dennis E. Morse

Theses and Dissertations

No abstract provided.

The Molecular Nature And Replication Of R Factor 222 In Proteus Mirabilis, Dennis Jon Kopecko

Theses and Dissertations

The molecular nature and replicative behavior of R factor 222 was examined in Proteus mirabilis . In deoxyribonucleic acid (DNA} from R+ P. mirabilis , R factor 222 was identified by CsCl density gradient centrifugation as 2 satellite DNA bands at densities corresponding to 50 and 58 moles percent guanine plus cytosine (% GC) . Replication of the 50 and 58% GC components of R factor 222 in P. mirabilis was analyzed during growth in the presence and absence of chloramphenicol (CAM} and after shifting exponentialand stationary- phase cells to conditions which inhibit host protein or DNA synthesis . CAM …

A Comparison Of Microbial Contamination In Commercial Intravenous Fluids Packaged In Glass And Flexible Plastic Containers, James Bruce Guynn

Theses and Dissertations

An original study was undertaken in the pharmacy and at the nursing unit simulating conditions of actual use to determine contamination rates for intravenous fluids in glass bottles and flexible plastic bags.

Studies Of Teratogenic Viruses: Minute Virus Of Mice And Colorado Tick Fever Virus, Robert Eldred Harris

Theses and Dissertations

Studies were conducted in DUB/ICR mice with minute virus of mice (MVM), a single stranded DNA virus, and Colorado tick fever (CTF) virus, a double stranded RNA Virus, to determine if CTF virus had teratogenic potential and to characterize further MVM and its teratogenic effects. MVM is a known teratogen, whereas CTF virus had never been investigated previously for teratogenic potential.

In characterization studies of MVM infectivity, the following were determined: (a) Rat embryo cells proved to be superior to six cell lines in assaying for MVM infectivity; (b) MVM infectivity could be inactivated with common laboratory disinfectants, ultraviolet radiation, …

The Effect Of Insect Damage On Indian Ricegrass (Oryzopsis Hymenoides) In Western Utah, Luis S. Guerra

Theses and Dissertations

Indian ricegrass at the Desert Range Experiment Station forty-seven miles west of Milford, Utah, is damaged by the larvae of Coenchroa illibella, Diatrae sp. and Typoceris ceraticornis, the latter being the most destructive. The biology of the insects and the extent of damage inflicted are discussed. Uninfested plants produced more new stems than infested plants. Plants having a basal diameter of 4 to 6.9 cm and 7 to 9.9 cm were the most frequently infested and, consequently, the most severely damaged.

The Biology And Ecology Of River Carpsucker, Carpiodes Carpio (Rafinesque), In The Little Missouri Arm Of Lake Sakakawea, North Dakota, Darrell John Trzpuc

Theses and Dissertations

The life history, growth, and ecologic distribution of river carp- sucker, Carpiodes carpio (Rafinesque), were studied in the Little Missouri Arm of Lake Sakakawea, North Dakota, between May 15 and August 14, 1970. In the course of the study 745 river carpsuckers were captured. The distribution of this species in the Little Missouri Arm was influenced by turbidity and water temperature. Dissolved oxygen content and hydrogen ion concentration did not affect their distribution. The condition factor of 2.94 indicated that carpsucker growth in the arm was good . Limited observations of reproduction and spawning habits were made, and the evidence …

Fourth Grade Creativity Of Urban, Rural, And Indian Children In An Experimental Program, Johanna E. Teubner

Theses and Dissertations

The primary purposes of this study were to determine if any differences exist in creativity between New School and non-New School fourth grade children, between Indian and non-Indian fourth graders, and among urban, rural, and Indian fourth grade children.

Procedure: The research population used in this study consisted of 237 fourth graders enrolled in North Dakota elementary schools. The experimental group consisted of 62 boys and 64 girls who had been enrolled in New School classrooms for a minimum period of six months during the 1969-1970 school year. The reference group consisting of 111 students, with 55 boys and 56 …

Attitudes And Behavior Of Educators Involved In Confluent Teaching, Martin M. Koller

Theses and Dissertations

The study attempted to clarify the relationships between expressed attitude and observed teacher behavior. The purpose was to find positive ways of causing educators to incorporate cognitive and affective processes into their educational activities. At the same time, ways of meeting student needs in a confluent setting were sought.

The review of the literature provided relevant information already available through the efforts of other researchers. A multidiscipline approach in this review resulted in several conclusions:

1. Certain bio-self needs result in feelings that cause behavior.

2. Feelings and learning can be correlated so that behavior change takes place.

3. Learning …

An Analysis Of The Effects Of In-Service Science Assistance On Elementary Teacher And Student Attitudes And Practices, Douglas A. Degroote

Theses and Dissertations

Problem: The purpose of this study was to determine whether in-service science assistance will affect positively the attitudes and practices of elementary teachers and students.

Procedure: The investigator designed and implemented a six month in- service science program for elementary teachers and students. The study population consisted of 12 first through sixth grade teachers and their 313 pupils in one elementary school in East Grand Forks, Minnesota.

Change in attitudes and practices of teachers was measured by comparing pre-test and post-test scores on the Actual Science Classroom Environment instrument, which was designed to determine what types of activities teachers perceived …

The Development Of Acoustical Communication In The Mallard (Anas Platyrhynchos), Fredrick Dale Caswell

Theses and Dissertations

Fesi ,es begin calling on the nest before the young hatch and calling increases as the time of exodus approaches. Female calls, on the nest, lire mainly in response to calls and movements of young. Females off the nest use a variety of calls and exercise complete control over the activity of the brood using mainly acoustical cues, Broody calls are significantly different between individual females and vary depending on. the situation. As young develop, female communication to and control over the brood decreases. Young are extremely vocal except when being brooded or when in alert positions. Contact calls are …

A Comparison Of The Sportsmanship Values Of Athletes Versus Non-Athletes, Roy D. Schodtler

Theses and Dissertations

This study was designed to determine whether there were any significant differences in the sportsmanship attitudes of high school athletes as compared to their non-atbletic peers.

Johnson's (1969) "Sportsmanship Attitude Scale" (SA Scale) was administered to 621 boys enrolled in grades nine through twelve at Palatine High School in Palatine, Illinois. The boys were divided into three major groups—Athle.tes, Non-Athletes, and No Sports—as determined by their experience in organized athletics. The Athletes group was further divided into ten sub-groups, according to the sports in which the subjects had participated.

It was found that the mean score of the Athletes group …

Vegetation Of The Forest River Biology Area In Relation To Environmental Gradients And Some Patterns And Processes Of Nutrient Cycling, Douglas A. Wikum

Theses and Dissertations

Vegetation-environment relationships were studied in 40 plots located on the slopes and the floodplain within the University of North Dakota Forest River Biology Area in northeastern North Dakota. Three of these plots, each dominated by a different major tree species, were selected for a detailed study (May to October, 1971) of nutrient input by litterfall, throughfall, and stemflow.

Coverage values for 109 species of vascular plants and basal area, frequency, density, and mensuration data were determined for seven tree species. A total of 10 species of mosses and 15 of lichens are reported for the 40 plots.

Dominant (based on …

The Petticoat Prerogative: An Original 2-Act Play, Jean M. Mattson

Theses and Dissertations

No abstract provided.

Bionomics And The Influence Of Diet Upon The Maturation Of Orchopeas Leucopus (Baker), Lynden Phillip Baum

Theses and Dissertations

Knowledge of the bionomics of plague vectors, es-pecially factors which influence life history, host pre-ference, and fluctuations of flea populations, are basic to an understanding of plague ecology. Orchopeas leucopus (Baker), an ectoparasite of cricetid rodents such as Peromyscus maniculatus (Wagner), and Peromyscus truei (Baird), is a vector of plague in the western United States (Holdenried and Morlan, 1955). In a study of nine biotic corrnnunities in the Utah portion of the Great Basin, P. maniculatus was the most abundant rodent in seven of the biotic corrnnunities (Olsen, 1966). Because of the ubiquitous nature of P. maniculatus an interchange of …

Population Dynamics Of Fleas (Siphonaptera) On The Uinta Ground Squirrel, Spermophilus Armatus Kennicott, Dennis I. Anderson

Theses and Dissertations

The Uninta ground squirrel, Spermophilus armatus Kennicott, is the most abundant diurnal rodent in the Wasatch Mountains at the 7,000-9,000 foot level particularly in the campgrounds and picnic areas. Contact between man and the Uninta ground squirrel may be hazardous inasmuch as the causative agent of plague has been isolated from S. armatus and its flea parasites (Public Health Reports, 1937, 1938a, 1938b; Meyer, 1938; Byington, 1940; Allred, 1951; and Beck, 1955). Since these fleas are vectors of sylvatic plague and potential vectors of human plague, detailed knowledge about their population dynamics is desirable.

Embryology And Larval Development Of Acteon Punctocoelata (Carpenter) (Gastropoda, Opisthobranchiata), Scott E. Brown

Theses and Dissertations

Acteon (Rictaxis) punctocoelata (Carpenter) is a primitive opisthobranch mollusc found sporadically in central California bays. The primitive nature of this genus is indicated both geologically and morphologically (Fretter and Graham, 1954 and Morton, 1958). This micro-phagous browser burrows just below the surface of the sandy mudflats, as do its close relatives Harninea, Scaphander, and Philine (Fretter and Graham, 1954). Its strong, sculptured external shell is approximately 1/2 inch long and is encircled with narrow black· bands that follow the whorls around the white shell (Fig. 1).

A Quantitative And Ecological Survey Of The Algae Of Huntington Canyon, Utah, Lorin E. Squires

Theses and Dissertations

A quantitative and ecological study of the algal flora of Huntington Canyon, Emery Co., Utah was conducted from March 1971 to April 1972. Data were collected concerning net plankton, nannoplankton, periphyton and visible attached algae. Certain physical and chemical parameters in the waters of Huntington Creek and a small pond along its course also were measured. The algal flora of Huntington Canyon contains a wide diversity of genera and species. Diatoms are the main constituent of the flora of this stream throughout the year. Hydrurus foetidus is prevalent in the creek in Huntington Canyon from late winter to early summer, …

The Distribution Of Meyenia Fluviatilis At Lincoln Beach Area Of Utah Lake With Notes On Seasonal Occurrence Of Gemmules, Chadwick E. Smith

Theses and Dissertations

This study of the distribution of the fresh-water sponge, Meyenia fluviatilis, at the Lincoln Beach area of Utah Lake involved the following: First, sampling of the area for the presence or absence of the species. Second, sampling at two separate areas at different depth intervals to determine if the number of sponge colonies and colony size were in any way related to depth. Finally, monthly sampling at one area to determine when gemmules of M. fluviatilis were present in the sponge colonies. Meyenia fluviatilis was found to be commonly distributed in 1-2 m of water on the lower surface of …

The Effects Of Channelization And Water Impoundment On The Macroinvertebrates In The Weber River, Summit County, Utah, Parley V. Winger

Theses and Dissertations

Macroinvertebrate populations in the Weber River, Summit County, Utah, were analyzed to determine what effects channelization resulting from Interstate-80 construction and water impoundment had on the standing crop, species diversity and species composition. Bottom samples were collected monthly from riffle areas in channeled and unchanneled sections and above Echo and Wanship Reservoirs. Macroinvertebrate populations in the channeled areas were similar in standing crop, species diversity and species composition to those in unchanged areas within six months following channelization. Species diversities were higher (d=4.1, 3.7) above the reservoirs than below (d=2.0). The reservoirs restricted the distribution of several species of macroinvertebrates. …

Lipids Of Fungal Spores, Identification And Metabolism, Jim L. Bushnell

Theses and Dissertations

The lipids of the spores of the Basidiomycetes: Ustilago bullata, Lycoperdon perlatum and Calvatia gigantea were investigated. The spores of U. bullata were found to have hydrocarbons ranging from C_9 to C_24, methyl esters of fatty acids ranging from C_14 to C_24, and free fatty acids from C_14 to C_24. The spores of L. perlatum were found to have few hydrocarbons (C_22 being the predominent one); no methyl esters were detected and the fatty acids were from C_15 to C_18. Long chain aldehydes (C_30) were also detected in low concentration. At the ultrastructural level the Lycoperdon spores were found to …

The Origin And Differentiation Of The Thrombocytes Of The Chicken (Gallus Domesticus), Thomas M. Mcneilis

Theses and Dissertations

Blood smears and bone marrow smears obtained from sixteen White Leghorn chickens varying in age from five to seventy days after hatching mere stained with Wright's stain, and histological sections of the bone marrow mere stained with Maximow's eosin- azure II stain.

This study of the origin and differentiation of the definitive series of thrombocytes has yielded information that confirms the work of Lucas and Jamroz (19S1) which shows that the thrombocytes are a separate series of blood cells that have an origin independent of the origin of all other blood cells.

The earliest identifiable cell of the definitive thrombocyte …

Laboratory Rearing, Development And Cytogenetics Of Orchopeas Leucopus (Baker), Robert Francis Allen

Theses and Dissertations

Vector control is fundamental to the suppression and/or eradication of many endemic and epidemic diseases affecting man. The discovery and widespread application of insecticides in vector control programs focused early attention on studies revealing ecological and behavioral characteristics of arthropod vectors. As a consequence of this emphasis, few attempts were made to investigate arthropod cytogenetics. However, recent recognition of the deleterious effects of highly persistent insecticides on the environment and the development of insecticide resistance by vectors of human disease have established the importance of cytogenetics as a base on which programs for control of vector populations may be built …