Digital Commons Network^™

March 28, 2014, The Dakota Student

The Dakota Student

No abstract provided.

Volume 51, Number 30: March 12, 2014, University Of North Dakota

University Letter Archive

No abstract provided.

March 7, 2014, The Dakota Student

The Dakota Student

No abstract provided.

Volume 51, Number 27: February 19, 2014, University Of North Dakota

University Letter Archive

No abstract provided.

January 31, 2014, The Dakota Student

The Dakota Student

No abstract provided.

Volume 51, Number 24: January 29, 2014, University Of North Dakota

University Letter Archive

No abstract provided.

Sarcopenia And Current Research Using Ames Dwarf Mice: A Research Study, Amanda Sodemann

Physical Therapy Scholarly Projects

This research project focused on the differences observed in muscle fiber composition and surface area between wild type mice and Ames dwarf mice as they aged. A mouse model was utilized because the skeletal muscle framework of mice closely resembles that of human muscle; thus, the observations seen within the mice may also be seen within humans as they age. Comparisons between the wild type and dwarf mice include a smaller cross-sectional muscle area in a dwarf mouse and no drastic change in the percentages of fast and slow twitch muscle fibers as the dwarf mouse ages. Furthermore, differences in …

Increased Incidence Of Asthma After Previous Infantile Rsv Bronchiolitis Infection, Ellen Adelia Doebler

Physician Assistant Scholarly Project Posters

• Respiratory Syncytial Virus (RSV) is a very common infection in children less than two years of age.

• Asthma is a common respiratory disease in childhood, which may cause frequent hospitalizations.

• The purpose of this study is to determine if infants previously diagnosed with RSV bronchiolitis have an increased incidence of asthma diagnosis compared to infants not diagnosed with RSV.

• The literature review examines correlation studies of both disease processes and explores incidence of asthma in patients previously diagnosed with Respiratory Syncytial Virus bronchiolitis.

• Individuals previously diagnosed with Respiratory Syncytial Virus bronchiolitis have a higher risk …

Vocabulary Assessment: A Comparison Between Clinical And Academic Measures, Lindsay Mae Anderson

Theses and Dissertations

Researchers have shown vocabulary knowledge to be highly linked to reading comprehension, and ultimately a strong predictor of academic success. Therefore, students' vocabulary skills should be carefully monitored and assessed as the demands of education increase.

The purpose of this study was to compare 28 fourth grade students' vocabulary scores on the Measures of Academic Progress (MAP) test with scores on the Peabody Picture Vocabulary Test-4 (PPVT-4) (Dunn & Dunn, 2007) and Expressive Vocabulary Test-2 (EVT-2) (Williams, 2007), two clinically used vocabulary measures with established validity. Strong correlations would potentially allow for the use of the MAP vocabulary test when …

Artificial Soil Formation And Stabilization Of Material Cycles In Closed Ecological Systems For Mars Habitats, Joshua D. Borchardt

Theses and Dissertations

Scientists are increasingly pressured to investigate novel ways in which to feed astronauts for the first mission to Mars in the 2030s. It is the aim of this thesis to conduct a preliminary investigation for soil formation of NASA JSC Mars-1A Regolith Simulant in an environmentally closed ecosystem to simulate plant growth within these initial habitats, and the prospect of soil formation from a Mars parent material for agricultural purposes. The rhizosphere and plant stress will be the main regions of research focus. It is hypothesized rhizosphere activity will determine the rate of stable soil formation adequate to support the …

Evaluation Of Selected Spectral Vegetation Indices In Senescent Rangeland Canopy Using Landsat Imagery, Marla Collins

Theses and Dissertations

Grassland birds are diminishing more steadily and rapidly than other North American birds in general. The nesting success of some grassland bird species depends on the amount of nonproductive vegetation (NPV). To estimate NPV land managers are currently using the Robel pole visual obstruction reading methods. Researchers with the USDA Agricultural Research Service's (ARS) Northern Great Plains Research Laboratory in Mandan, ND, recently established statistical relationships between photosynthetic vegetation (PV), NPV and spectral vegetation indices (SVIs) derived from more sensitive and more detailed, but less accessible and more costly hyperspectral aerial imagery. This study is an extension of this previous …

Geometry Of Quivers, Patrick Andrew Durkin

Theses and Dissertations

A quiver is a directed graph, but the term usually implies such a graph is being considered along with representations. These representations consist of vector spaces and linear transformations. We explore some the connections between quivers and geometric structures. To begin, we consider a theorem that says every projective variety can be considered as a quiver Grassmannian. The reasoning of the proof is demonstrated by example. We then prove the existence of a countable quiver containing every finite quiver as a subquiver. Following this we consider some properties of its category of representations. Finally, we give an overview of quiver …

Software Documentation Guidelines For Maintainability, Justin Roger Huber

Theses and Dissertations

Software maintenance is the final stage in the software engineering process; and can also be the longest and most costly. The ability of, and ease in which software upkeep and change is performed is an important software quality attribute called maintainability. Software maintenance however is an expensive process in both time and financial cost and can account for a majority of a system's overall lifetime cost. It would be beneficial then to have a set of guidelines for obtaining a higher degree of maintainability in software before and after its release and evolution stage in order to limit the cost …

The Instruction Of Mindfulness: Developing Standards And Objectives For Mindfulness Training In Graduate Programs, Crystal Rofkahr

Theses and Dissertations

Mindfulness is an effective therapeutic tool for multiple disorders and

conditions. A set of standards, methods, assessments, and teacher characteristics had

not been formulated to effectively teach future mental health providers mindfulness.

This study utilized a Delphi Method to meet this need in the field. This methodology

was used to assemble a panel of experts to provide data on the best practices in teaching

mindfulness. The experts participated in three rounds of data collection. They provided

information pertaining to their ideal and real teaching standards, methods, and

assessments. They, then, narrowed down the concepts in each domain until consensus

was …

Marijuana Consumption And The Perception Of Harm, David Ruggeri

Theses and Dissertations

Drug use is a public health issue with one-third of the United States population having reported consuming marijuana at some point in their lifetime. This paper examines how the perception of risk (both health and criminal sanctions) affects consumption behavior. This study examined marijuana consumption for the age ranges of 12-17, 18-25, and 26 and older during the years of 1999-2007.

Perceptions of health risk of marijuana vary from by age groups (12-17, 18-25, and 26 years of age and up). Persons age 26 and older perceive the health risks to be the greatest for occasional marijuana consumption, trailed by …

Songbird Response To Mixed Ungulate Herd Reduction Through Changes In Vegetation At Sullys Hill National Game Preserve, Bethany J. Walters

Theses and Dissertations

Big game management traditionally focused on single species management with less emphasis, until recently, on community interactions. Sullys Hill National Game Preserve (SHNGP) is a 678 hectare preserve where extirpated Plains bison (Bison bison) were reintroduced along with Rocky Mountain elk (Cervus elaphus) and white-tailed deer (Odocoileus virginianus). These large ecosystem engineers have been managed at varying densities within a fenced area of deciduous woods, wetlands, and native prairie since 1918. Grazing, browsing, and rubbing by ungulates, along with additional refuge management prescriptions (e.g. prescribed fire), shape the understory and midstory and in turn …

Attention, Please, Abbey Marie Numedahl

Theses and Dissertations

A thesis of short fiction that examines the lives of contemporary American women through five short stories.

Novel Approaches Investigating Predisposition For Maternal Group B Streptococcus Colonization, Michelle Lynn Wright

Theses and Dissertations

Group B streptococcus (GBS) is the leading cause of infectious neonatal morbidity and mortality in the United States. Maternal GBS colonization is the primary risk factor associated with neonatal infection. However, maternal risk factors for GBS colonization are ambiguous. A conceptual framework of gene-environment interactions guided the approach for this study analyzing DNA methylation, serum cytokines, and vitamin D levels. The purpose of this study was to identify potential maternal biomarkers associated with GBS colonization. Descriptive statistics were conducted to depict sample characteristics (n=42 pregnant women) and identify potential confounding variables including, but not limited to: medical history, race, weight, …

A Novel Assembly Algorithm That Optimizes For Rna-Seq Data, Yi Yang

Theses and Dissertations

The advent of next-generation sequencing (NGS) technology has shown unprecedented promise for accurately identifying and quantifying genomic variants for living organisms. For species whose genome sequences are unknown, the first step of RNA sequencing data analysis is to assemble all short reads. The de Bruijn graph-based algorithms, such as Oases, are usually used for short reads assembly to resolve the issue of computational complexity. However, de Bruijn graph-based assemblers normally generate high error rates when assembling RNA-Seq data. We have developed a novel assembly algorithm that can be used jointly with any other assembly methods for RNA-Seq short reads. The …

The Interplay Between Aging, Growth Hormone, The Methionine Pathway, And Epigenetic Methylation Marks And Mechanisms, Vanessa Louise Armstrong

Theses and Dissertations

Methylation reactions are important for the establishment and maintenance of epigenetic methylation tags on DNA and histone molecules that are critical for the development and life-long function of an organism. While epigenetics has been studied extensively during embryological development and age-related disease such as cancer, little is known about whether epigenetic methylation enzyme expression change in normally aging or long-living mammals. Because growth hormone (GH) plays an important role in determining the lifespan of many organisms, we have focused our studies on the long-living growth hormone deficient model the Ames dwarf mouse. We focused our studies on epigenetic methylation in …

Restoration, Presence And Computer Use: How Computer Displays Incorporating Restorative Environments Effect Users' Sense Of Restoration And Presence, Jacob Bell

Theses and Dissertations

Recent technological advances provide opportunities for computer users to replace

desktop pictures with dynamic, audio-visual recordings. Such advances provide researchers with opportunities to better understand how specific video content may effect users' sense of restoration and presence. As described within Attention Restoration Theory, those perceiving restorative environments, which are found primarily within nature-based environments, experience a sense of restoration. Yet, prior research has largely focused on singular, and to an extent, non-interactive displays of restorative environments. The current research further investigated the restorative potential of environments having incorporated interactive, computer-based displays, with animated audio-visual environments. Participants were assigned to either …

Regulation Of Proline-Directed Phosphorylation Site, Threonine 53 On Dopamine Transporter, Sathyavathi Challasivakanaka

Theses and Dissertations

The dopamine transporter (DAT) is a plasma membrane protein that clears extraneuronal dopamine (DA) and thus controls the spatio-temporal dynamics of dopaminergic neurotransmission. Also, DAT is the major target for psychostimulant substrates, amphetamine (AMPH) and methamphetamine (METH), and psychostimulant uptake blocker, cocaine (COC). DAT is a phosphoprotein with both the N- and C-termini facing toward the cytosol, with multiple phosphorylation sites on the N-terminus. DAT has a closely spaced 6-serine cluster on the distal N-terminus that is phosphorylated in a protein kinase C (PKC)-dependent manner and a recently identified proline-directed site, Thr (T) 53, that is phosphorylated in vitro by …

An Analysis Of Abortion Demand In Pennsylvania 2000 - 2010, Guido Giuntini

Theses and Dissertations

In this paper I expand on previous research of the determinants of abortion demand to examine the demand for abortion in the specific case of Pennsylvania, where precise statistics are available for each county. The data considered is for the years 2000 and 2010, and allows for cross sectional and panel data analysis, specifically, first-difference permitting to look at the effect of changes over time of specific explanatory variables. Careful attention is placed on variable selection techniques to avoid the use of low significance variables. The analysis allows controlling for price, as it is considered to be constant across the …

Therapeutic Igy: Safe, Diverse, And Effective For Use Against Viral Targets, Nicole Noel Haese

Theses and Dissertations

Passive antibody treatments are used to target infectious disease, toxins, venoms, and cancer antigens. Recently, there has been an increased interest in the use of avian-derived antibody treatments such as IgY. IgY is the primary serum antibody isotype present in the avian system, and IgY treatments have already been demonstrated to be effective against a variety of bacterial and viral infectious agents. There are two forms of IgY expressed in anseriformes birds, a full length IgY that is functionally similar to mammalian IgG, and an alternatively spliced IgY, IgY(ÄFc), that is comparable to the mammalian F(ab')2 fragment. The difference in …

Multiple Baseline Study Of The Effects Of Left Visual Field Stimulation During Emotion Recognition Training Among Four Male Children With Autism Spectrum Disorders, Rachelle Hansen

Theses and Dissertations

Autism Spectrum Disorders (ASD) are characterized by social deficits in emotional comprehension. Research has demonstrated that for the neurotypical population, recognizing, and reacting to facial emotions improve when using the left visual field by employing the right brain hemisphere's configural processes. Behavioral, physiological, and neuroimaging findings suggest an opposite pattern within the autistic population - left hemisphere activation contributing to a right visual field preference for analyzing and assessing facial affect. The present study attempted to activate and strengthen the right hemispheric neural pathway responsible for emotion recognition using modified eyewear to contrive left visual field stimulation during an empirically …

Part I: An Approach To The Synthesis Of Plakortethers A-E Part Ii: Rhodium-Catalyzed Intramolecular C-H Insertion On Diazosulfonates And Its Synthetic Applications, Duminda Shiromalee Liyanage

Theses and Dissertations

This research work consists of two independent studies. The first study is the development of a synthetic route to plakortethers A-E along with possible derivatives. The second study focuses on the synthetic applications of rhodium-catalyzed intramolecular C-H insertion on diazosulfonates.

Plakortethers (A-G) represent a set of marine natural products, which contain of a characteristic tetrasubstituted tetrahydrofuran fragment. This group of compounds was isolated from the Caribbean sponge Plakortis simplex. Their selective cytotoxic activity against the RAW 264-7 cell lines (murine macrophage) makes them promising candidates for biological studies and, along with their unusual structure, warrants the synthesis of these natural …

A "Keeping Place For Souls": Photo, Body, And Narrative Impulse In Cormac Mccarthy's Suttree, Melissa Anne Mondry

Theses and Dissertations

This paper examines how the treatment of photographs in Cormac McCarthy's novel Suttree sheds light on its main character's narrative project, his motivation for writing and his approach to his subjects. It extends the work of critics who have identified the character of Suttree as a burgeoning writer in order to examine what this narrative subplot might indicate about the purpose of narrative in McCarthy's world. It also responds to previous readings of the novel's photo album scene, which have focused on photographs as reminders of death. I argue that Suttree's adverse reaction to photographs is more complicated than fear …

Potential Juror Credibility Evaluations Of Gay And Lesbian Witnesses, Lisa Mae Olson

Theses and Dissertations

This study looked at whether the sexual orientation of a witness has an effect on a potential juror's determination of the witness's credibility, and examined traits such as respondent gender and college major, that may predict high levels of sexual prejudice. The sample consisted of 379 undergraduate students at a medium sized, upper Midwestern university. Results did not reveal an overall link between witness credibility ratings and sexual orientation, with the gay male witness receiving the highest credibility rankings followed by the heterosexual male witness, heterosexual female witness, and lastly, the lesbian female witness. It does not appear that the …

Quantifying Nutrient Cycling And Fate Within An Abandoned Feedlot And Adjacent Wetlands, Prosper Prosper Gbolo

Theses and Dissertations

Feedlot operations over the years have increased revenue and boosted economies of states and countries, but these operations have resulted in elevated concentrations of nutrients in soils, surface water, and groundwater. Feedlot operations generate large quantities of manure and other waste, which when not managed properly can result in environmental problems.

It is hypothesized that nitrogen can cause a short-term contamination of soils and groundwater beneath abandoned feedlots, but phosphorus can cause both short- and long term contamination, especially in well-drained carbonate and iron-rich soils associated with Concentrated Animal Feeding Operations. It is also hypothesized that a spectral vegetation index …

Muscle Fiber Size And Composition Differences Between Ames Dwarf Mice And Wild-Type Mice, Jordan Anderson

Physical Therapy Scholarly Projects

Background: Ames dwarf mice demonstrate delayed aging processes in multiple body systems. We compared muscle composition and area between dwarf and wild-type mice to determine if any significant differences exist.

Methods: We resected soleus, gastrocnemius/plantaris, tibialis anterior, and extensor digitorum longus muscles from both dwarf and wild-type mice, then froze, sliced, set on slides, and stained to isolate fast-twitch and slow-twitch fibers. Microscopy images were taken at 10x magnification and fiber composition and cross-sectional area were measured in soleus muscles.

Results: Wild-type mice had an average composition of 52.3% fast-twitch and 47.7% slow-twitch fibers while dwarf mice had 66.3% slow-twitch …