Digital Commons Network^™

Dietary Requirements Of Subjects Exposed To Hyperbaric He-O₂ Conditions : Effects Of Supplementation Of Vitamins And/Or Casein, Jack R. Isler

Theses and Dissertations

No abstract provided.

The Shapes Of Ideas. (Original Poems)., Harold Melvin Nelson

Theses and Dissertations

No abstract provided.

Mark Twain And Religion, Julie Maristuen-Rodakowski

Theses and Dissertations

No abstract provided.

The Partial Purification And Characterization Of Alpha-Ketoisocaproate Oxygenase., Wilson Dexter Grant

Theses and Dissertations

No abstract provided.

Toads And Diamonds : Fifteen Poems And How They Were Created, Betsey Harris

Theses and Dissertations

No abstract provided.

The Effects Of Thyroid Hormones On The Neutral Lipid Metabolism Of The Guinea Pig, Harvey Hwang

Theses and Dissertations

No abstract provided.

Herpes Simplex Virus Infection In Nutritionally Deficient Mice, Mary L. Hetland Van Eeckhout

Theses and Dissertations

No abstract provided.

An Analysis Of The Relationship Between Somatotype And Personality Of Undergraduate College Men, Iain C. Adams

Theses and Dissertations

No abstract provided.

The Histology Of The Spleen Of The Bush Baby, Galago Senagalensis : A Light Microscopic Study, J Eric Dravland

Theses and Dissertations

No abstract provided.

The Effects Of High Frequency Stimulation And Noise Exposure On The Acoustic Reflex Latency Of Male And Female Listeners, Elizabeth Atwater Drewicz

Theses and Dissertations

No abstract provided.

Local Steroid Concentrating Mechanism In The Reproductive Vasculature Of The Ewe, John S. Davis

Theses and Dissertations

No abstract provided.

Aspects Of The Development Of A Commercial Fishery In Lake Ashtabula, North Dakota, Including Studies Of Fish Growth And Accumulation Of Nutrients, Lawrence F. Ryckman

Theses and Dissertations

No abstract provided.

Applied Analysis Of Computer Simulated Decompression Profiles, Stephen Jack Settle

Theses and Dissertations

No abstract provided.

Interactions Of Ethanol And Methadone, Vijay Aggarwal

Theses and Dissertations

The effects of ethanol administration on the antinociceptive activity, lethal properties and brain concentration of methadone, were investigated. The effect of ethanol on the antinociceptive activity of methadone was assessed by the hot-plate and tail-flick tests. Concentrations of methadone in the brain were determined by the use of 3H-methadone as well as by gas liquid chromatographic analysis. The study showed that moderate doses of ethanol did not alter tail-flick or hot-plate response by themselves. However, when combined with methadone, ethanol produced a significant increase in the antinociceptive effectiveness of methadone as measured by both a decrease in the ED50 of …

Chlorophyll Densities And Plankton Counts As Measurements Of Phytoplankton Biomass, William M. West

Theses and Dissertations

No abstract provided.

A Study Of The Identification Of Medically Important Streptococci, Margaret Antoinette Hardy

Theses and Dissertations

Summary:

1. The type of animal blood used in preparing blood agar plates did not significantly affect the demonstration of hemolysis by any streptococcal species except for S.faecalis. S.faecalis more consistently displayed an alpha reaction on sheep blood agar while expressing a beta reaction on horse and rabbit blood agars.

2. A recommended scheme for identifying streptococci, adaptable to most any clinical laboratory, was developed and is outlined in Table 13.

3. S.agalactiae (group B) was the most frequent beta hemolytic streptococcal isolant. Significantly, it was the only species over-all to be recovered from every clinical source. The CAMP test …

Paleozoology Of Cores From The Tyler Formation (Pennsylvanian) In North Dakota, U.S.A., James C. Grenda

Theses and Dissertations

A well-preserved fauna from the Tyler Formation was studied in cores from 34 wells drilled for oil in Billings, Golden Valley, McKenzie, Slope, and Stark Counties. Forty-four species of invertebrates, eleven form-species of conodonts, at least three types of fish, and at least four genera of plants· are present. Invertebrate species include 1 bryozoan, 15 brachiopods, 14 bivalves, 2 gastropods, 2 cephalopods, 2 annelids, 2 branchiopoda, at least 2 ostracodes, 2 malacostracans, 1 insect, and 1 echinoderm. Chordates include 1 "nonmarine" shark, at least 1 paleoniscoid fish, and 1 possible crossopterygian fish. A new genus and species of eocarid malacostracan …

Effect Of Altitude On The Peripheral Degradation Of Thyroxine In The Uinta Ground Squirrel (Citellus Armatus), Stuart K. Ware

Theses and Dissertations

Various methods were employed to detect changes in the peripheral degradation of thyroxine (T4) in adult Uinta ground squirrels (Citellus armatus) collected at two different altitudes (5400 and 9000 feet.) Plasma half-life of injected T4-125I (tl/2) was significantly decreased with altitude, as was T4-125I distribution space (TDS) and T4 degradation and secretion rate (TSR). In vitro deiodination of T4-125I by heart homogenates was not affected, while urinary excretion of thyroxine derived iodide was increased at high altitude 44-70 hours post-injection. Both total and free serum T4 concentrations were reduced at high altitude, although not significantly. The cause of the reduced …

Population Characterization And Feeding Behavior Of A Subtidal Neogastropod, Amphissa Columbiana, Bruce C. Stone

Theses and Dissertations

The neogastropod Amphissa columbiana is found abundantly in subtidal areas of the San Juan Archipelago. Two populations studied were composed of distinct age classes of sexually immature and mature specimens. Reproduction appears to take place in the fall by snails at least two years old. Amphissa is a chemoreceptive scavenger that usually feeds on carrion and on dead and injured animals. Feeding behavior is mediated by chemical attractants from dead and traumatized tissue. An unusual feeding association is formed where Amphissa congregate around feeding predators to share their meals. A specific defense mechanism is deployed by Amphissa especially in response …

Potential Diets For Carp Production, Rex Carlton Infanger

Theses and Dissertations

The objective of this study was to determine the feasibility of raising carp on pig manure and coli, Brassica campestris. The use of pig feces as a source of fish food has been questioned by researchers (Hickling 1968). Coli was selected for dietary intake by fish since it is used for human consumption by the Indians of Guatemala. Commercial fish food (Silver Cup) was used for a control diet. These diets were both combined and used as a single source of food.

The Glacial Geology Of Mckenzie County, North Dakota, Clark Fulton

Theses and Dissertations

Fourteen lithostratigraphic units composed of windblown, glacial, lake, slopewash, and stream sediment were distinguished in McKenzie County, The units were mapped using aerial photographs, topographic maps, and soil maps combi11ed with field e:xaminations of sediment outcrops. Eight of the units have been formally named and described in earlier studies. Four of them, however, have not been a"~ previously named and formally described .a.nu assigned names in this study. Two other units are described, but because of their limited exposure, are not assigned a formal lithostratlgraphic name. The oldest sediment exposed in the county was deposited during the Paleocene and the …

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 …

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 …

Effect Of Hemorrhage On Blood Flow To Marrow And Osseous Tissue In Conscious Rabbits, Glenn T. Syftestad

Theses and Dissertations

The purpose of this experiment was to characterize cardiovascular responses in skeletal tissue 15 minutes and 16 hours following reversible hemorrhagic hypotension and to validate a quantitative method for measuring blood flow rates in marrow and bone.

Cardiac output and regional blood flow determinations were made using the radioactive microsphere technique. Microspheres (15 u dia) were injected into unanesthetized rabbits via a chronically implanted left atrial catheter. Blood flow and cardiac output measurements were made by injecting individual microsphere isotopes, each with a different label (®^Sr, 5 1 c r Gr l ^ C e ) , at three specified …

Experiential Learning: Theory And Postulates As Reflected In John Dewey's Theories Of Learning And Experience, Gary Gus Wegner

Theses and Dissertations

There is a need to integrate the experiences that take place through in-school activities and the exper snces that take place elsewhere in orde' to make the si nts1 learning more educative. This can be accomplished through the velopment and implementation of experiential learning programs within the school setting.

This study was undertaken to develop a philosophical and theoretical foundation for experiential learning programs and to present postulates for the development and implementation of experiential learning programs in school settings. The philosophical and theoretical foundation has been developed in the theories of learning and experience of John Dewey. The postxilates …

A Comparison Of The Effects Of Timeout, Punishment And Extinction On An Aggressive Behavior In Children, Diane M. Harder

Theses and Dissertations

Ulrich and Flavell (1970) note that although aggression is more a problem today than it has ever been, and although there have been centuries of concern, little has been done to develop effective controls. One conceptual framework for explaining the occurrence and control of aggressive behavior is social learning theory. Bandura (1973) suggests that aggressive behaviors that are reinforced will be strengthened. Several studies with children support this notion (Cowan & Walters, 1963; Davitz, 1952, & Lovaas, 1961). Those aggressive behaviors that are punished or unrewarded will be weakened or eliminated. Hawkins, Peterson, Schweid, and Bijou (1966) suggested that extinction …

Some Effects Of Model Status On The Reduction Of Anxiety, Barbara Jane Benner

Theses and Dissertations

Bandura and his colleagues have demonstrated that modeling techniques using fearless "mastery" models can be useful in helping clients overcome irrational fears (Bandura, Grusec and Menlove, 1967; Bandura and Menlove, 1968; Bandura, Blanchard and Ritter, 1969). Later, Meichenbaum (1971) found that initially fearful "coping" models who gradually overcome their fear are more effective than mastery models. However, research on the effects of model status has not investigated coping models. The present study attempted to discern how model status influences the effectiveness of coping models.

Thirty-two female Introduction to psychology students who reported themselves to be speech anxious were asked to …

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 …

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).