Digital Commons Network^™

Shelley's Secularization Of The Psalms, Steven Vermillion

Making Literature Conference

No abstract provided.

Contemporary Reactions To Christopher Marlowe's Doctor Faustus, Mckenzie Marsh

Making Literature Conference

No abstract provided.

A Passive Darkness: The Veil In "Cock-Crowing" And Till We Have Faces, Grace Seeman

Making Literature Conference

No abstract provided.

The Effects Of Leader Support And Leader Gender On Subordinate Creative Problem-Solving Performance, Nadine Maliakkal

UNO Student Research and Creative Activity Fair

This research draws on role congruity theory to examine whether the well-studied relationship between leader support and subordinate creativity differs when the leader is a man or a woman. Utilizing Amazon Mechanical Turk participants, the research employs experimental vignette methodology to examine (1) whether high (vs. low) leader support results in better subordinate creative problem-solving, (2) whether subordinate creative problem-solving is better under male (vs. female) leaders, and (3) whether the positive effect of support on subordinate creativity is greater for male than female leaders.

How Prosthetic Ankle Stiffness & Load Carriage Affect Metabolic Energy Expenditure During Walking, Erica A. Hedrick, Philippe Malcolm, Jason M. Wilken, Kota Z. Takahashi

UNO Student Research and Creative Activity Fair

The ankle structures play a key role in body support, forward propulsion and leg swing. One important property of the human ankle is its ‘quasi-stiffness’, or resistance to angular motion. The ankle joint stiffness can play a role in aiding the lower leg as its rocks over the foot. Human biological ankle stiffness changes in response to changes in the mechanical demands of walking (e.g. added load or changes in speed), using active muscle contractions. However, the role of ankle stiffness in regulating metabolic energy across walking conditions is unknown. Therefore, the purpose of this study is to determine how …

Walking Adaptations To An Ankle Foot Orthosis In Individuals With Peripheral Artery Disease, Todd Leutzinger, Iraklis Pipinos, Jason Johanning, Mahdi Hassan, Holly Despiegelaere, Mukul Mukherjee, Sara Myers

UNO Student Research and Creative Activity Fair

Single Session Walking Adaptations to an Ankle Foot Orthosis in Patients with Claudication and Peripheral Artery Disease

Todd Leutzinger^{1, 2}, Iraklis Pipinos^{2, 3}, Jason Johanning^{2, 3}, Mukul Mukherjee¹, Sara Myers^{1, 2}

¹Department of Biomechanics, University of Nebraska at Omaha, Omaha, NE USA

²Nebraska and Western Iowa Veterans Affairs’ Medical Center, Omaha, NE USA

³Department of Surgery, University of Nebraska Medical Center, Omaha, NE USA

Email: [email protected]

Peripheral artery disease (PAD) is an atherosclerotic disease affecting the arteries of the lower extremities [1]. The primary symptom of PAD is …

An Exploration Of Iranian Use Of Gray Zones And Their Deterrence, Lauren Zimmerman, Amanda Urick

UNO Student Research and Creative Activity Fair

Iran, being the religious minority in the Middle East, has begun to extend its reach outside of its borders by influencing the stability of other states within the region. They have been utilizing their economic revenue to fund terrorist organizations and cyber capabilities to threaten free use of the internet in the Middle East. Iran is the world's most active state sponsor of terrorism, but how do we deter them? Our paper will explore the history of deterring Iran and future possibilities.

Experienced Sexual Harassment In The Military: Why Soldiers Aren't Reporting, Jacqueline Jaramillo

UNO Student Research and Creative Activity Fair

The prevalence of U.S. military personnel experiencing sexual harassment is a significant problem that must be addressed. Recent estimates suggest that 26% of female service members and 7% of male service members experience sexual harassment in the military (Bell, Dardis, Vento, & Street, 2018). One purpose of this study is to review the research to determine the extent to which the culture of reporting in the military influences why soldiers demonstrate a strong tendency to not report sexual harassment they have experienced. A second goal of this research is to explore the evidence for soldiers’ fear of retaliation for reporting …

Abiding By Poe's Law? How Users Interpret Ambiguous Messages Of Polarizing Content Posted On Social Networking Sites, Kelly Johnson

UNO Student Research and Creative Activity Fair

Today’s political climate is marked by a polarized citizenry and widespread use of social media for politically-charged exchanges. It can be difficult to discern whether posts that demonstrate an extreme position on face value intended the message to be parody or whether the author expressed sincerely held beliefs. In an online Creationism debate, a user summarized this difficulty with, “Poe’s Law: Without a winking smiley or other blatant display of humor, it is [utterly] impossible to parody a Creationist in such a way that someone won’t mistake [it] for the genuine article.” Studies have shown people are more inclined to …

A Content Analysis Of Advertisement To Volunteer In The Global South, Kristina Medero

UNO Student Research and Creative Activity Fair

In the past decade, volunteer tourism, or the venture to volunteer abroad as a learning or leisure activity, has grown immensely. This study conducted a content analysis through a cultural intelligence theoretical framework to examine the strategies of persuasive rhetoric and images in voluntourism advertisement. The data revealed that organizations that requested monetary donations used images of egoistic appeals on websites p> 0.05, t(13) = .76. However, no significant difference was recorded between volunteer tourism organizations that required time commitment or monetary donations when using expectations of exchange. Considering the volunteer tourism organizations used a variety of techniques with …

Using From The Heartland In The First-Year Writing Classroom: Measuring Instructor Reception Of The Customized Textbook, Sarah Cohen

UNO Student Research and Creative Activity Fair

The aim of the first-year writing program at the University of Nebraska at Omaha (UNO) is to equip students with critical reading and writing tools and strategies to advance effective written communication well into their future. This study examines and measures attitudes of UNO composition instructors – who come from a variety of pedagogical and theoretical backgrounds – toward the efficacy of UNO’s self-published Composition I textbook, From the Heartland: Critical Reading and Writing at UNO. In many ways, From the Heartland embraces what Richard Fulkerson refers to as “a critical cultural pedagogy” which encourages students to consider personal …

Pregnancy In Zoo-Managed African Elephants (Loxodonta Africana): Investigating Possible Hormonal And Metabolic Indicators Of Successful And Unsuccessful Pregnancies., Chelsi Marolf

UNO Student Research and Creative Activity Fair

Female African elephants (Loxodanta africana) in zoos in the United States currently have high rates of ovarian acyclicity and if they do become pregnant, the calf is often lost before or during birth. This issue likely stems from various metabolic and reproductive factors, including obesity, advanced age, and stress. While this is a complicated problem, analyzing certain hormones related to reproduction and nutrition in elephants might reveal biological indicators for successful and unsuccessful pregnancies in African elephants. The goal of this study is to create a range of hormone levels throughout a typical successful pregnancy, and to compare …

Heterogeneous Boolean Networks With Two Totalistic Rules, Katherine Toh

UNO Student Research and Creative Activity Fair

Boolean Networks are being used to analyze models in biology, economics, social sciences, and many other areas. These models simplify the reality by assuming that each element in the network can take on only two possible values, such as ON and OFF. The node evolution is governed by its interaction with other nodes in its neighborhood, which is described mathematically by a Boolean function or rule. For simplicity reasons, many models assume that all nodes follow the same Boolean rule. However, real networks often use more than one Boolean rule and therefore are heterogeneous networks. Heterogeneous networks have not yet …

A Typological And Iconographic Analysis Of Macedonian Burials In The Classical And Early Hellenistic Period (5th-Mid 3rd Centuries Bce), Ann Haverkost

UNO Student Research and Creative Activity Fair

Much of what we know of ancient cultures comes from burials, and this is also true in Macedonia. Yet, little is known about Classical Macedonian culture outside of the nobility, and even less is known about what they thought of death. This project analyzes funerary images from Macedonia during the Classical and early Hellenistic periods (5^th- mid 3^rd century BCE) with three questions in mind. First, are there specific motifs that are more prevalent? Second, is there a change in motifs over time? Third, how are these images similar to and different from images in Greece and …

Isolating And Characterizing Novel Bacteriophages From Freshwater Samples, Mackenzie Conrin, Avery Misfeldt

UNO Student Research and Creative Activity Fair

Bacteria are responsible for many Healthcare-Associated infections each year and are evolving to become multidrug resistant (MDR). Bacteriophages, also called phages, are naturally occurring bacterial viruses. These phages infect and kill their bacterial hosts. It is estimated that there are 10 different phages, per bacterium. This makes phages the most abundant entity in the biosphere. Isolating and characterizing these naturally occurring bacterial killers offers the potential for strain specific treatment of MDR infections. Such treatments, coined Phage Therapy, can be used in the fight against evolving bacterial infections. Pseudomonads are a classification of bacteria that infect a variety of plants …

The Effects Of Stiffness Of A Prosthetic Shock-Absorbing Pylon On Mechanical Work During Walking, Jenny Anne Maun

UNO Student Research and Creative Activity Fair

Name: Jenny Anne Maun

Title: The effects of stiffness of a prosthetic shock-absorbing pylon on mechanical work during walking

Degree: Masters

Faculty Advisor: Kota Z. Takahashi, PhD

Co-authors: Steven A. Gard, PhD; Matthew J. Major, PhD

A prosthetic shock-absorbing pylon (SAP) is intended to attenuate impact forces, provide comfort, and reduce residual limb pain for prosthesis users. However, the effect of an SAP and its spring stiffness on the mechanical work done by the prosthetic limb during walking remains unclear. The purpose of this study: to investigate the effects of SAP spring stiffness and walking speed on the mechanical work …

Meta-Analysis Of Characteristics In Upper Missouri River Fishes: Prediction Of Invasiveness, Steph Purcell

UNO Student Research and Creative Activity Fair

Invasive species are often considered a global threat due to their association with biodiversity loss and novel diseases. The Missouri-Mississippi River Watershed, including the Missouri River Basin, is particularly vulnerable to invasive species because of low species diversity following historic glaciation events. Management of invasive species is imperative in this watershed but continues to be challenging in that there are over 100 invasive species currently present in this region. The goal of this project is to identify characteristics associated with successful invasions that may assist in developing management strategies to reduce the negative outcomes caused by the establishment of invasive …

What Makes A Good Therapy Dog? Identifying Factors Associated With Calm Behavior In Therapy Dogs, Kristen Cunningham, Zachary L. Darwish, Rosemary Strasser

UNO Student Research and Creative Activity Fair

Dogs offer a variety of benefits to society, including the use of therapy dogs to provide therapeutic and physiological benefits, enhancing the lives of a wide range of recipients. Unlike service or emotional support animals, therapy dogs provide support to a multitude of individuals, often in hospitals, schools, nursing homes, or other venues. While many studies have examined behavioral assessments of service dog programs, little research has investigated the factors that make a good therapy dog. Therapy dogs must undergo strategic training before becoming certified. The present study seeks to illuminate what factors might distinguish therapy dogs from pet dogs …

The Effect Of Sensory Input On The Temporal Structure Of Center Of Pressure In Stroke Survivors, Samantha Chong

UNO Student Research and Creative Activity Fair

Stroke is the leading cause of disability that affects 17 million people worldwide. Patients post stroke suffer from maintaining balance because the brain may not be able to receive or process visual, vestibular and proprioceptive sensory information: all of which contribute towards maintaining stability. Information provided by vision is important for spatial orientation, as it develops an environmental perspective. Proprioception is detected through the stretching of tendonsand surrounding tissue, and is able to help the brain determine spatial location. The vestibular system provides the sense of balance detecting rotations and linear accelerations through the vestibulo-ocular reflex. The vestibular system is …

How The Foot Modulates Its Mechanics During Uphill And Downhill Walking, Jeffrey M. Patterson, Kota Z. Takahashi

UNO Student Research and Creative Activity Fair

The foot's biomechanical role in walking on sloped surfaces is currently unclear. While previous biomechanics studies have examined the hip, knee, and ankle, the foot is oversimplified as a rigid-body segment. This oversimplification overshadows its complex structure and function. In this project, we use an innovative multi-segment foot model to explore how the foot adapts its mechanics to incline and decline walking. Preliminary results have revealed that the foot is capable of adapting its mechanical work profile to both incline and decline walking. Specifically, the foot can increase its positive work output (i.e., increased energy generation) during inclined walking to …

Updates On Epigenetic Alterations To Brca1: Chemosensitivities, Haley Blum

UNO Student Research and Creative Activity Fair

Breast cancer 1, early onset (BRCA1) is a human tumor suppressor gene encoding the BRCA1 protein that maintains genomic integrity. Molecular events may contribute to the loss of BRCA1 function, contributing to site specific tumorigenesis. Loss of BRCA1 function may arise from mutation or epigenetic events. Germline mutations of BRCA1 have been thoroughly implicated in heritable breast and ovarian cancers. More recently, sporadic breast cancer has been shown to be driven by epigenetic alterations to the BRCA1 promoter region, specifically methylation. Breast carcinomas that present with BRCA1 promoter methylation have been associated with triple negative breast cancers, as well …

Developing And Testing Of An Upper Limb Exoskeleton For Stroke Patients, Drew Dudley, David Salazar

UNO Student Research and Creative Activity Fair

Objective: The main objective of this study was to determine functional and neuromuscular outcomes of stroke patients using their non-preferred hand with and without a 3D printed passive exoskeleton compared to controls using their non-preferred hand with and without the passive exoskeleton. Methods: Adults at least six months post stroke (Stroke, n = 5) and age- and sex- matched healthy controls (Control, n = 5) performed nine trials of a gross motor task while having their brain activity measured. The Fugl-Meyer and “Box and Block” test was used to measure the gross dexterity of the subjects with and without the …

The Intersection Of Neuroscience And Art, Matilde Mendes Pinto

UNO Student Research and Creative Activity Fair

The Interaction of Neuroscience and Art will give you an insight into how they interact with each other by analyzing visual art, musical art and theatrical art.

Utilizing Functional Near-Infrared Spectroscopy To Examine Hemodynamic Cortical Activity During Locomotion, Douglas Rowen

UNO Student Research and Creative Activity Fair

Metronomes have been used in rehabilitation setting to improve the gait of older adults and pathologic populations. These metronomes are typically isochronic meaning that they have no fluctuations. However, this runs contrary to human gait as there is a natural structure of variability found in healthy gait. Thus, variable metronomes have been developed that mimic the fluctuations found in healthy gait. This study investigated how walking to a fluctuating metronome impacts the brain and if there are any differences between walking to a naturally fluctuating metronome when compared either an isochronic or a randomly fluctuating metronome.

Lake Sediment Analysis At Heron Haven Nature Center, Erik Lato

UNO Student Research and Creative Activity Fair

Understanding the chemical composition of a wetland sanctuary lakebed can help us understand how recent developments may have changed the chemical composition. Due to recent dredging by the U.S. Army Corps of Engineers and previous research on water composition at Heron Haven, the goal of this project was to determine the chemical composition as a function of sediment depth. The concentration of seven different metals and nutrients were analyzed in terms of depth. The aluminum, iron, and phosphate concentrations had no real discernible concentration change as a function of depth. There is some hint of a steady increase of manganese …

Neural Mechanisms Underlying Sensorimotor Synchronization With Different Forms Of Rhythms, Ryan Meidinger, Vivien Marmelat

UNO Student Research and Creative Activity Fair

Introduction: Neural activity exhibits non-periodic rhythm [2] but it is unknown if neural activity synchronizes with non-periodic, as it does with periodic rhythms [1]. The purpose of this research is to determine the neural mechanisms present leading to synchronized finger tapping to varying rhythms. Methods: Twenty young healthy adults will be recruited to participate in the present study (see Figure 1 for the protocol). Electroencephalography (EEG) will be used to measure the amplitude (AE) and beats for interbeat intervals (IBIs), and a pressure sensor will be used to measure intertap intervals (ITIs). The AE will be assessed for …

Teacher Beliefs About Focus On Form: Differences And Similarities Among Native And L2 Spanish Speakers, Bailey Morley

UNO Student Research and Creative Activity Fair

Although there has been research conducted around the beliefs of English as a foreign language teachers in regards to grammar, this research has not been extended to Spanish as a foreign language teachers. This study seeks to fill this gap in literature by identifying differences between native speakers (NS) and speakers of Spanish as a second language (L2) who are teachers of Spanish as a foreign language. Specifically, it aimed to investigate their differing beliefs toward grammar instruction. In this quantitative research study, participants were asked to complete a questionnaire, which included statements about grammar instruction in the classroom. Participants …

Effect Of Dual-Task Walking On Long-Range Correlations In People With Parkinson's Disease, Shane Meltz

UNO Student Research and Creative Activity Fair

Parkinson’s Disease (PD) causes gait to be more variable and more random. Gait variability is related to disease severity, and may be a marker of fall risks. Gait in PD is attention-dependent, meaning a distraction while walking could be detrimental. The effects of dual-task walking on gait variability in PD are unclear (in particular fractal fluctuations). This study will determine if dual-task walking impacts stride-to-stride variability compared to normal walking in people with Parkinson’s Disease. We predict that dual-tasking will lead to more random stride-to-stride variability in people with PD, compared to controls. Also, within the PD group, we predict …

Taxonomic Classification Of Diplazium Molokaiense, A Fern Endemic To Hawaii, Using Molecular And Morphological Characters, Sarah Jaksich

UNO Student Research and Creative Activity Fair

Diplazium molokaiense is an endangered fern species endemic to Hawaii. There are only an estimated 61 individuals left in the wild. Taxonomic classification of this species is an important element to its conservation. Using the following morphological characters: sori size and shape, scale size and shape, and frond shape, D. molokaiense was preliminarily placed into the Diplazium genus. Six regions (rbcL, matK, atpA, atpB, trnLF, and rps4-trnS) of the chloroplast genome were amplified and sequenced using Sanger-sequencing. Sequences for outgroup taxa and 20 Diplazium species were downloaded from GenBank and used to infer a phylogeny. Our data provide …

Effects Of Environmental Temperature On Aerobic Training Adaptations, Katherine Marshall

UNO Student Research and Creative Activity Fair

BACKGROUND: Previously we have demonstrated acute effects of endurance exercise in different environmental temperatures. However, training within these temperatures has not been examined. The purpose of this study is to determine the effect of exercise training in different environmental temperatures on aerobic capacity, body composition, heart rate, sweat rate, core, and skin temperature. METHODS: Thirty-six recreationally trained males made 18 visits to the lab and performed a 3-week cycling training protocol in either a 7°C, 20°C, or 33°C environment. Aerobic capacity, body composition, heart rate, sweat rate, core, and skin temperature were measured before and after the acclimation period. During …