Digital Commons Network^™

Comparison Of Virulent And Avirulent Legionella Pneumophila And Evaluation Of Fish As A Potential Environmental Reservoir/Experimental Model, Sandra Reading Sommer

Theses and Dissertations

Legionella pneumophila was first recognized as a cause of human pneumonia in 1976 . Since then, much has been learned about the microbiology, pathophysiology and epidemiology of this organism. The features which permit one strain but not another to invade human lung tissue and produce disease remain incompletely understood. This study e valuated several attributes of a virulent and an avirulent strain of L. pneumophila in an attempt to identify characteristics which would distinguish the two. Evaluation of a new medium, buffered egg yolk agar, showed that virulence was maintained after 26 passages, which was the same as the buffered …

Effects Of Diet On Herpes Simplex Virus Infection In Balb/C Mice, Keith J. Fischer

Theses and Dissertations

No abstract provided.

Effects Of Hematocrit Variations On Microcirculatory Hemodynamics And Oxygen Transport In Hamster Striated Muscle, Lih Kuo

Theses and Dissertations

Experiments were performed to investigate the influence of isovolemic hemodilution and hemoconcentration on microcirculatory hemodynamics and oxygen transport in the hamster cheek pouch retractor muscle. Measurements of red blood cell velocity, microvessel hematocrit, vessel diameter, segment length (L), hemoglobin oxygen saturation (SO₂) and longitudinal SO₂ gradient (ΔSO₂/L) were made in four arteriolar branching orders before and after isovolemic exchange with plasma (hemodilution) or packed red blood cells (hemoconcentration).

In the study of hemodilution, systemic hematocrit was reduced from 52 to 33% in 23 hamsters. This degree of hemodilution resulted in an average decrease in microcirculatory …

The Impact Of Coal Mine Development On Colombia's Guajira Region : Monitoring Change In The Environment, Ross D. Keys

Theses and Dissertations

No abstract provided.

The In Vitro Effects Of Homologous Retinal Pigment Epithelial Cell Conditioned Medium On Retinal Microvessel Endothelial Cells, Jeffrey A. Block

Theses and Dissertations

No abstract provided.

The Reliability Of Selected Word Choosing Behaviors Of Normal Adult Speakers And Of Persons Who Stutter, Teresa Marie Chapman

Theses and Dissertations

No abstract provided.

Upland Sediments And Climatic Episodes Of The Holocene, Bruce N. Dahlman

Theses and Dissertations

No abstract provided.

An Assessment Of Pain Responses During Stages Of Pregnancy, Ann H. Dunbar

Theses and Dissertations

As physical therapists are becoming more involved with the pregnant population both in traditional patient care as well as in childbirth education, a better understanding of the influence of pregnancy on the pain system is needed. The purpose of this study was to determine if an endogenous analgesia system is present in pregnant humans as has been shown to be present in animals (Ginzler, 1980). Women's affective and intensity responses were measured during late pregnancy, labor and post-partum. Using a repeated measures design, fifteen women responded to thermal stimuli (43-52 degrees C) by marking a visual analogue scale. No significant …

Stephen Joseph Doyle And Wartime Democracy In North Dakota During The 1918 Gubernatorial Election, Richard W. Whaley

Theses and Dissertations

No abstract provided.

A Study Of The Binding Of Copper(Ii)-Amine Complexes To Polyacrylic Acid., Marilyn Elizabeth Martin

Theses and Dissertations

A study of the binding of copper(II)-amine complexes to polyacrylic acid was undertaken. Experimental binding curves were generated for polyacrylic acid having molecular weights of 11,050 and 1600 at an ionic strength of.5M and also at an ionic strength of.1M for the 11,050 molecular weight sample. An analysis of the experimental data indicates that the coordinating species is copper(II)-triamine. The formation curves were fit to analytical binding models and it was found that the higher molecular weight polyions exhibit cooperative behavior. The copper(II)-triamine PAA M$\sb{\rm n}$ 11,050 system at an ionic strength of.5M has seven coordinated ligands with an intrinsic …

Breeding Biology, Intrasexual Competition, And Philopatry In Wilson's Phalarope (Phalaropus Tricolor) (Canada)., Mark Allen Colwell

Theses and Dissertations

Intrasexual competition among males is a dominant feature of the mating system of most animals. Far fewer species exhibit female-female competition for mates. However, species showing reversal of the typical sex roles afford special opportunities to evaluate evolutionary generalities concerning sexual selection and mating systems.I studied Wilson's phalarope (Phalaropus tricolor), a sex-role reversed, nonterritorial shorebird, from 1982-1986 at Last Mountain Lake Wildlife Management Unit in southcentral Saskatchewan, Canada. Phalaropes were individually marked and data on breeding biology were recorded during daily observation periods. I focal sampled individual male phalaropes to assess weekly changes in the intensity of female-female competition for …

An Investigation Of Rock Music/Video Popularity And Rock Video Violence, Samuel S. Lemon

Theses and Dissertations

No abstract provided.

The Perceived Communicator Style Of University Of North Dakota Department Secretaries, Beth Gelroth Klein

Theses and Dissertations

No abstract provided.

Final Design Project Paper On English Coulee Beautification On The Und Campus, Dale A. Grove

Theses and Dissertations

No abstract provided.

Synthesis, Mechanism Of Formation, And Spectral Studies Of N-(3)-Substituted Hydantoins, Richard Alan O'Brien

Theses and Dissertations

No abstract provided.

The Synodic Cycle And Its Relationship To A State Hospital Admittance Rate And Patients' Diagnoses, Mark Rodlund

Theses and Dissertations

No abstract provided.

Topic Maintenance In School-Age Children, Darla Rae Heisler

Theses and Dissertations

No abstract provided.

The Effects Of Word Frequency And Level Of Processing Manipulations On Word Stem Completion And Word Naming Tasks, Gregory J. Lamberty

Theses and Dissertations

No abstract provided.

Developmental Profiles Of Three Embryo-Lethal Mutants Of Maize, Shelley M. Horne

Theses and Dissertations

No abstract provided.

The Intonation Of American English For Advanced Chinese Learners, Amin Chen

Theses and Dissertations

No abstract provided.

Dmitri Shostakovich's Wartime Works And Socialist Realism : With An Emphasis On The Piano Trio, Opus 67 In E Minor, Denise A. Hovland

Theses and Dissertations

No abstract provided.

Hiram Page: An Historical And Sociological Analysis Of An Early Mormon Prototype, Bruce G. Stewart

Theses and Dissertations

Recent sociological studies propose a model for understanding early Mormonism in its cultural context. Such models, while experimental, suggest commonalities between Mormonism and contemporary millennial sects. Enthusiastic beginnings, early convert response to American millennialism, the containment of charisma through institutionalization, discomfiture of Mormon millenial expectation, and the process of apostasy within the church provide the parameters of this study.

The life of Hiram Page, an early convert, is used as a foil to this end. Page is prototypal of the original band of followers who were attracted to Joseph Smith. Drawn to Joseph for spiritual comfort, Page and his associates …

Histamine Receptors And Cyclic-Amp Levels In Rabbit Coronary Arteries., Dale Arthur Schuschke

Theses and Dissertations

Histamine is known to cause an H$\sb 1$-receptor mediated vasoconstriction and an H$\sb2$-receptor mediated vasodilation in the coronary vasculature of the rabbit heart. In this study we looked at the role that the adenyl cyclase-cyclic AMP system plays in mediation of the histamine response in the vascular smooth muscle. Change in perfusion pressure in the isolated rabbit heart was used as the index of change in vascular tone when histamine was added to the perfusate. The vascular response to histamine was then studied while cAMP levels were altered by adenyl cyclase potentiation and phosphodiesterase inhibition. After the physiological responses of …

José Emilio Pacheco's El Viento Distante : Translation And Critical Analysis = The Distant Wind, Janet M. Livesey-Mccauley

Theses and Dissertations

No abstract provided.

Mechanical Properties Of Superplasticized Fly Ash Concrete, Michael Pasqual

Theses and Dissertations

No abstract provided.

Cell Membrane Facilitators: Nucleotide-Amine Linkages., Michael Yiu-Ming Chan

Theses and Dissertations

In order to facilitate the transport of a nucleotide across an artificial lipid bilayer, different amines were conjugated to the phosphate group of adenosine 5$\sp\prime$-phosphate. The effect of the amine conjugation was to enhance the lipophilicity of the consequent adenosine 5$\sp\prime$-phosphoramidate derivative.The synthesis of various nucleoside 5$\sp\prime$-phosphoramidate analogs have been investigated, using different methodologies. Adenosine 5$\sp\prime$-phosphoromorpholidate, 5$\sp\prime$-phosphor(adamantyl)amidate, (n-decyl)amidate, (n-stearyl)amidate, and (1,4,7,10,13-pentaoxo-16-azacyclooctadecyl)amidate were synthesized by adopting Moffatt and Khorana's procedures. Among these phosphoramidate analogs, the adamantyl, aza-18-crown-6, and stearyl derivates have never been reported before. These amine-nucleotides were prepared by refluxing a reaction mixture of the corresponding amine (4 fold excess), …

Studies On The Toxicity Of Ninhydrin For Bacteria, Shanti Rawat

Theses and Dissertations

No abstract provided.

Novalis' And Tieck's Use Of Mountain, Stone, Ore, And Gem Imagery As Poetic Expression, Bennett P. Olson

Theses and Dissertations

No abstract provided.

Systems Analysis Of The Carotid Sinus Viscoelastic Properties And Their Impact On Multifiber Baroreceptor Nerve Activity, Christopher L. Taylor

Theses and Dissertations

No abstract provided.

Dancing About Architecture, J Paul Johnson

Theses and Dissertations

No abstract provided.