Digital Commons Network^™

Proliferation And Differentiation Of Mast Cell Progenitors, Daniel Lee Jarboe

Theses and Dissertations

We have identified a late, committed stage in the differentiation of the mast cell progenitor just prior to granulation. This mast cell-committed progenitor (MCCP) differs from the more primitive bone marrow mast cell progenitor in that it is able to proliferate and differentiate in the absence of interleukin-3 (IL-3) when cultured on a monolayer of embryonic skin or 3T3 fibroblasts. The MCCP can be harvested from the mesenteric lymph nodes of mice in their fourteenth day of infection with the rodent hookworm Nippostrongylus brasiliensis and can be cloned in a methylcellulose culture system by supplementing the cultures with fibroblast-conditioned medium …

Observations On Nurturing In Selected Short Stories Of Ernest Hemingway, Jeanne L. Klemetsrud

Theses and Dissertations

No abstract provided.

The Treatment Of Synfuels Wastewater By Biological, Coupled Fluidized Bed Reactors, Michael J. Koehmstedt

Theses and Dissertations

No abstract provided.

Characterization And Utilization Of High- And Low-Sodium Lignite Of The Beulah-Zap Bed (Paleocene), Indian Head Mine, Southwestern North Dakota, Gale G. Mayer

Theses and Dissertations

A study of high- and low-sodium lignite of the Beulah-Zap bed sampled at the Indian Head Mine, Pit 11 and 12, respectively, in Mercer County, North Dakota and fly ash derived from utilization tests on the lignite, indicates the fly-ash composition and related utilization potential can be correlated to coal geochemistry.

Average lithotype abundances for each of the sampling sites were estimated to be vitrain 50%, attritus 45%, and fusain 5%. Attritus occurs more frequently in the upper part and vitrain in the middle and lower parts of the seam. Maceral groups, identified microscopically, were (in order of decreasing abundance): …

Federal Narcotic Violators And The Dispositions Received Through The Courts With An Emphasis On Cocaine Offenders, Phyllis Rena Baker

Theses and Dissertations

The United states has been plagued with the problem of illicit drug use for many years. Drug abuse has continued to increase and is prevalent among all races and social classes of people. The question is what efforts have been or are being made in order to deter the influx of drugs into the country along with stopping the suppliers of these drugs and what has hindered the effectiveness of these efforts.

The theory of deterrence was applied to this problem because the model presumes that the punishment of criminal acts could deter potential offenders by making the negative consequences …

Hydrogeology Of The Hillsboro Landfill, Hillsboro, North Dakota, Jeffrey D. Maletzke

Theses and Dissertations

Landfills are the primary means for land disposal of solid wastes, and as such, they represent potential sources of groundwater contamination. This potential for contamination is exemplified by the Hillsboro landfill, which was emplaced above the Hillsboro aquifer, within permeable surface materials, and under shallow water-table conditions. Burial of refuse in trenches 15-feet (4.57 m) deep ensure that at least portions of the refuse are below the water table, which varied from 5.4 to 13.2 feet (1.7 to 4.0 m) below the surface. Concern over these factors led to the present study.

Subsurface conditions were investigated by electrical, earth-resistivity surveying. …

Design Project Report On Biological Treatment Of Texaco Coal Conversion Wastewater By The Activated Sludge Process, Daniel J. Stepan

Theses and Dissertations

No abstract provided.

Factors Of Value In Preparation For A Successful Retirement, Craig R. Showalter

Theses and Dissertations

No abstract provided.

The Effect Of Food Cue Prominence On Eating Behavior, Jill M. Plevell-Omdahl

Theses and Dissertations

No abstract provided.

Late Holocene Climatic Episodes Of The James River Valley, North Dakota, Garry Leonard Running

Theses and Dissertations

No abstract provided.

Influence Of Disturbance On Short-Term Colonization Of A Headwater Stream By Invertebrates And Fishes, Jean D. Stock

Theses and Dissertations

No abstract provided.

Examination Of Industrial Pretreatment Rates For Grand Forks, North Dakota, Eugene A. Rohl

Theses and Dissertations

No abstract provided.

Developmental Profiles Of A Selected Set Of Embryo-Lethal Maize Mutants, Guy E. Farish

Theses and Dissertations

No abstract provided.

Corticosteroid Effects And Senescence In Cultured Endothelium, Stephen A. Gudas

Theses and Dissertations

Cultures of human umbilical vein endothelial cells were treated with heparin-corticosteroid combinations to determine effects on cellular growth. Standard proliferation assays, colony formation assays, and cytoflourometric analysis were the methods employed. Dexamethasone (DEX) and hydrocortisone (HC) were inhibitory to growth of HUVEC when EtOH was used as a solvent and fully supplemented medium (20% serum) was employed. When DMSO was the solvent, growth enhancement sometimes occurred when (DEX) was the test steroid; growth inhibition occurred with this steroid when a reduced (1%) serum component was used. Since significant inhibition of cell colony formation in response to DEX administration was observed, …

The Effect Of Man On The Landscape And The Effect Of Land On The Manscape: Or Contingent Plans For Knowing A Mountain, Taylor Scott Baldwin

Theses and Dissertations

In my artistic practice, I emphasize personal and pan-cultural anxieties regarding civilization and the environment as an impetus for work in sculpture, video, and drawing. By locating marginal microcosmic subject matter that tellingly exhibits macrocosmic global dread, I seek to capture and distill our overwhelming eco-socio-political anxiety into a portrait of a society at a point in its history when the specter of nameless impending disaster weighs pressingly on the collective psyche. This thesis is supplementary to my work of sculpture in the Graduate School of the Arts Thesis Exhibition at the Anderson Gallery opening on April 27th, 2007. The …

A Historigraphical Study Of American Religious Fundamentalism, Richard Robert Lofthus

Theses and Dissertations

No abstract provided.

Final Project Report On Two Stage Biological Fluidized Bed Process, Ajit Thomas Joseph

Theses and Dissertations

No abstract provided.

Non Random Distribution Of Penicillin Binding Proteins In Escherichia Coli As Determined By Electrophoresis And Sephacryl S-1000 Chromatography, Monte J. Leidenix

Theses and Dissertations

No abstract provided.

Regulation Of Glucose-6-Phosphate Hydrolysis In Fasted And Diabetic Rats And Tumor-Bearing Mice At Near-Physiological Substrate Concentrations, Kerry L. Nelson

Theses and Dissertations

No abstract provided.

A Morphological Description Of Angiogenesis In The Corpus Luteum Of The Golden Hamster, Mesocricetus Auratus As Revealed By Microcorrosion Casting, Allan D. Forsman

Theses and Dissertations

No abstract provided.

A Study Of The Heterogeneous Electron Transfer And Dioxygen Binding Reactions Of Myoglobin, Bertha Bauer Cosby King

Theses and Dissertations

Quasi-reversible electron transfer kinetics are reported for sperm whale myoglobin reacting at tin-doped indium oxide electrodes. This reaction was studied by three different electrochemical or spectroelectrochemical methods; cyclic voltammetry (CV), single potential step chronoabsorptometry (SPS/CA) and derivative cyclic voltabsorptometry (DCVA). Kinetic parameters were determined from experiments which followed the purification of the protein,

the pretreatment of the electrode surface, and the removal of dioxygen from the sample solution. A formal heterogeneous electron transfer rate constant, k0′, of 2.6 (±0.5) x 10-5 cm/s and a transfer coefficient, α, of 0.48 (±0.05) were obtained using SPS/CA. These results are shown to correlate …

Mechanisms Of Tolerance To The Effects Of Clozapine And Pimozide On A Multiple Fixed Interval 60-Second Fixed Ratio-30 Food Reinforcement Schedule In Rats, Heidi Freese Villanueva

Theses and Dissertations

This study examined the behavioral and biochemical effects of two neuroleptic drugs. Clozapine (10 mg/kg), an atypical neuroleptic, and pimozide (1 mg/kg), a typical neuroleptic, were administered acutely, chronically (10 days), or in a behavioral tolerance paradigm (9 days of post-session administration followed by 10 days of presession administration) in order to assess the mechanisms of tolerance. Behavioral Effects were measured on a multiple FI 60-second FR-30 operant response schedule; HPLC was used to measure the biochemical effects of clozapine in the blood plasma, frontal cortex and striatum.

Presession administration of clozapine and pimozide both produced initial disruptions of response …

Phenotypic And Functional Characterization Of Ia+ And La- Sublines Of The Human Monocyte-Like Cell Line, U937, Coles Meredith Squire

Theses and Dissertations

Sublines were derived from the U937 human monocytic cell line by limiting dilution techniques. Several of the sublines derived in this manner were found to constituitively express la, unlike most U937 cell lines previously examined. Thus the la+ and la- sublines were examined and characterized phenotypically and functionally. Morphologically the sublines, both la+ and la-, were found to be similar to the originally described U937 parent cell line. They were positive for production of non- specific esterase and expressed the HLA phenotype A(3,X), B(51,18), DR(2,X). The sublines were examined by immunofluorescence techniques with a large number of antibodies specific for …

Electrochemical And Surface Enhanced Resonance Raman Study Of Heme Proteins At Bare Metal Electrodes, David Edward Reed

Theses and Dissertations

Direct heterogeneous electron transfer reactions between horse heart cytochrome g_and silver electrodes were investigated by electrochemical and spectroelectrochemical methods. The kinetics of these reactions were established as being quasi-reversible, with a formal heterogeneous rate constant (k°'s,h) ranging between 0.18 - 1.5 x 10^-3 cm/s, for both polished and electrochemically roughened silver surfaces. Such reactions were stable and reproducible for over ten hours at room temperature. These results clearly demonstrate that neither electrode surface modification nor the inclusion of mediators is necessary to study electron transfer reactions of heme proteins at metal electrodes.

A crucial factor in obtaining the quasi-reversible …

Glucocorticoid-Responsive Hepatic Cytochromes P-450 In The Rat: Multiplicity And Differential Regulation, Keith Alan Hostetler

Theses and Dissertations

The multiplicity of glucocorticoid-responsive hepatic cytochromes P-450 in the rat was investigated by developing a series of monoclonal antibody probes directed against purified steroid-inducible isozymes from the rat (P-450p) and man (HLp). Two antibodies, termed 1G8 and 13-7-10, showed unique specificity for purified cytochromes P-450 upon immunoblot analyses. These antibodies were further characterized in terms of their reactivity toward proteins in liver microsomes from untreated and xenobiotic-treated rats. Three P-450p-related proteins were identified using 1G8 and 13-7-10 to monitor the expression of P-450p family subtypes. In untreated rats, members of this family exhibited sex-specific expression. Treatment with various chemicals resulted …

Aspects Of Bald Eagle Winter Behavior In Rush Valley Utah: A Telemetry Study, Neil B. Sabine

Theses and Dissertations

The diurnal behavior and nocturnal roosting patterns of 28 bald eagles outfitted with tail-mounted radios were investigated in Rush Valley, Utah between January and March 1982-1984. Casting analysis and feeding observations indicated the principal food source was jackrabbit carrion. Jackrabbit availability declined from 1982 to 1984 and eagles responded by; 1) roosting closer to feeding sites, 2) shifting from canyon to valley roosts, 3) arriving later at and departing earlier from roosts, 4) decreasing diurnal activity, and 5) decreasing residence time. Foraging efficiency appeared to be maximized by experienced eagles using familiar feeding areas and by naive birds monitoring their …

Restrained Eating : The Effects Of Privacy And Perception Of Having Overeaten On Subsequent Food Consumption, Geraldine T. Merola

Theses and Dissertations

Herman & Mack (1975) theorized that "restrained eaters," conflicted between social pressure to be thin and biological pressure to be fat, tend to alternately eat very little or a great deal, as they respond to one or the other constraint. According to restraint theory, restrained eaters' chronic dieting induces physiological and psychological states that make them highly susceptible to external disruption of eating controls. Research has shown that when led to believe they have already overeaten (i.e., when they are "preloaded"), restrained eaters will loosen restraints and "counterregulate" (i.e., binge-eat). In contrast, "unrestrained eaters" (i.e., normal eaters) will compensate by …

Selected Measures Of The Physical Environment In Secondary Schools, Rebecca W. Rafferty

Theses and Dissertations

No abstract provided.

Fostering Critical Thinking: A Study Of The Effects Of Classroom Climate In A Gifted Program, Hilary L. Pollack

Theses and Dissertations

No abstract provided.

The Predation Ecology Of The Northern Harrier (Circus Cyaneus Hudsonius) On Mallard Island, North Dakota, Jessica Elin Sutherland

Theses and Dissertations

I studied predation ecology of Northern Harriers (Circus cyaneus hudsonius) on Mallard Island in McLean County, North Dakota, during May-August, 1984-1985. Harrier population parameters, productivity, food habits, and feeding rates were examined. I located 15 nests in 1984 and 14 in 1985. Nesting chronology, clutch sizes, hatching and fledging success, and productivity were similar to values previously reported. Flooding, predation, starvation, and parental abandonment were responsible for egg loss or pre-fledging mortality. Chick survival to fledging was independent of brood size which suggested that quality of parental care, not a limited prey resource, was an important influence on survival. The …