Digital Commons Network^™

Methods For Checking And Enforcing Physical Quality Of Linear Electrical Network Models, Mikhail Zvonkin

Masters Theses

"Most CAD tools allow system-level simulation for signal integrity by computing and connecting models together for the various sub-parts. The success of this model derivation depends on the quality of the network parameters. Different errors may seriously affect the quality of the frequency characterization: frequency-dependent measurement errors, errors due to the numerical simulation and/or discretization, etc. When these errors are large, model assembly and simulation becomes difficult and may even fail. This thesis gives an overview of the most significant properties of physically valid network parameters, describes existing methods for checking and enforcing these properties, and presents several new methodologies …

Quantitative Modeling Of The Equilibration Of Two-Phase Solid-Liquid Fe By Atomistic Simulations On Diffusive Time Scales, Ebrahim Asadi, Mohsen Asle Zaeem, Sasan Nouranian, Michael I. Baskes

Materials Science and Engineering Faculty Research & Creative Works

In this paper, molecular dynamics (MD) simulations based on the modified-embedded atom method (MEAM) and a phase-field crystal (PFC) model are utilized to quantitatively investigate the solid-liquid properties of Fe. A set of second nearest-neighbor MEAM parameters for higherature applications are developed for Fe, and the solid-liquid coexisting approach is utilized in MD simulations to accurately calculate the melting point, expansion in melting, latent heat, and solid-liquid interface free energy, and surface anisotropy. The required input properties to determine the PFC model parameters, such as liquid structure factor and fluctuations of atoms in the solid, are also calculated from MD …

Rethinking The Conquest : An Exploration Of The Similarities Between Pre-Contact Spanish And Mexica Society, Culture, And Royalty, Samantha Billing

Dissertations and Theses @ UNI

The Spanish Conquest has been historically marked by the year 1521 and is popularly thought of as an absolute and complete process of indigenous subjugation in the New World. Alongside this idea comes the widespread narrative that describes a barbaric, uncivilized group of indigenous people being conquered and subjugated by a more sophisticated and superior group of Europeans. There is also a common misconception that the Conquest resulted in a dominance of European culture and a loss of the indigenous heritage that had prevailed in the New World up until that point.

This manuscript explores the period known as the …

Dynamic Phases, Pinning, And Pattern Formation For Driven Dislocation Assemblies, Caizhi Zhou, Charles Reichhardt, Cynthia Olson Reichhardt, Irene J. Beyerlein

Materials Science and Engineering Faculty Research & Creative Works

We examine driven dislocation assemblies and show that they can exhibit a set of dynamical phases remarkably similar to those of driven systems with quenched disorder such as vortices in superconductors, magnetic domain walls, and charge density wave materials. These phases include pinned-jammed, fluctuating, and dynamically ordered states, and each produces distinct dislocation patterns as well as specific features in the noise fluctuations and transport properties. Our work suggests that many of the results established for systems with quenched disorder undergoing plastic depinning transitions can be applied to dislocation systems, providing a new approach for understanding pattern formation and dynamics …

On Body Dumps : The Rhetorics Of Corporeal Narcoterrorism, Evan Mitchell Schares

Dissertations and Theses @ UNI

Though the exact number is unknown, estimates indicate the trade and movement of narcotics have resulted in over 60,000 murders of Mexican citizens. As a result of the rising narcoviolence, Felipe Calderón, early in his presidential administration, made the “War on Drugs” a top priority. Despite this effort to curb the violence, in 2010 alone, more than 15,200 lifeless bodies have been left across Mexico, most likely by drug cartels. A nascent phrase, body dumps, has risen in journalistic reports describing this conscious relocation of the ruined corpse to highly visible traffic areas. This thesis explores the rhetorical constructions of …

Injunctive And Descriptive Norms Effect On Physical Activity, Monica Lynn Ehn

Dissertations and Theses @ UNI

Nearly half of adults in the United States do not meet the recommended guidelines for both aerobic and strengthening activities despite the benefits of regular physical activity (National Center for Health Statistics, 2014; US Department of Health and Human Services, 2008). The purpose of the current study was to test whether normative feedback (i.e., descriptive and descriptive plus injunctive norms) affects levels of physical activity. Participants wore a Fitbit Zip pedometer to record exercise behavior and received normative feedback messages sent to their mobile phones. Participants were 52 undergraduate students with a mean age of 18.66 (SD = 0.83); 27 …

A Graduate Recital In Voice, Branden D. S. Haralson

Dissertations and Theses @ UNI

Branden D. S. Haralson, baritone, presented his graduate voice recital on Friday, April 3, 2015, at 6:00 p.m., in Davis Hall of the Gallagher-Bluedorn Performing Arts Center on the University of Northern Iowa campus. The recital was presented in collaboration with pianist Dr. Robin Guy, and included works by Beethoven, Schubert, Mahler, and Duparc. This abstract discusses musical and historical features of the works performed.

The Other O: Comparing Las Vegas To A Successful Mid-Sized, Midwestern Metropolitan Area, Robert E. Lang

Brookings Scholar Lecture Series

No abstract provided.

Is Las Vegas The Next Silicon Valley? A First Look At Brookings Top 100 Metro Data On Advanced Industries, Robert E. Lang

Brookings Scholar Lecture Series

No abstract provided.

The Advanced Industry Economy In The Mountain West: Finding The Next Silicon Valley, Robert E. Lang

Brookings Scholar Lecture Series

No abstract provided.

All Fortune Is Good Fortune: The Role Of Fortuna In A Monotheistic Literary World, Kimberly Bridgewater

Dissertations and Theses @ UNI

The goddess Fortuna, who ruled over chance and the giving of worldly gifts was a pagan deity who survived through the conversion of Christianity in Europe. Her survival and inclusion in Medieval literature caused conflicts with the Christian religion, especially in relation to beliefs in free will and God’s Providence. Now, twenty-first century scholars are still attempting to figure out how the role of free will can co-exist with Fortuna, especially in regard to the works of Geoffrey Chaucer, Guillaume de Lorris and Jean de Meun, who render Fortuna as a dominant entity in the lives of their Christian characters. …

Reconciling The Two Cultures : A Case Study Of The University Of Northern Iowa, Elizabeth Ann Collins

Dissertations and Theses @ UNI

In 1959, chemist and author Charles Percy Snow gave a Rede Lecture at the University of Cambridge in which he named “Two Cultures”—the sciences and the humanities—which, according to his experience as someone who worked in both, were at odds with one another. His words elicited impassioned responses from critics who either agreed with Snow, believing this to be a detriment to society, or vehemently disagreed, believing Snow’s statements to be unfounded, and even antagonistic. This conversation, which had also found relevance in the United States, continues to be important today, and has changed over the years as institutions of …

Pedagogical Reasoning Of Pre-Service Teachers: Juggling Priorities And Managing Resources, Jennifer Lynn Rasmussen

Dissertations and Theses @ UNI

The purpose of this study was to examine the cognitive and motivational factors related to the development of self-regulated teaching. These factors were defined by Shulman (1986; 2006) as theoretical, practical and moral knowledge for pedagogical reasoning. This study occurred in a clinical, instructional setting specifically designed to provide pre-service teachers with the environmental factors necessary to support the development of self-regulated instructional decision making. These factors included specific modeling of teacher thinking, regular formative feedback, instructional autonomy and strategic reflection. An instructional sequence based on Schunk and Zimmerman’s (1998; 2007) Model of the Development of Self-Regulatory Skill was applied …

An Investigation Of Adversity In Christian Living And Proposal For Discipleship Response, Christopher Payne

Doctoral Dissertations and Projects

With numerous ministries teaching a cultural gospel comprised of prosperity and pleasure, people have the impression that a saving faith limits personal hardships. Jesus taught his disciples the truth about hardship and how to struggle well and the Church is called to do likewise. This thesis will present five key biblical truths to equip Christians for growing their faith through personal struggle. Moreover, the project will give leaders a guide for discipling hurting church members. The author will research current and historical discipleship materials and models, examine current teachings on faith and struggle, explore relevant biblical teachings, and survey fifty …

Professional Learning Communities: The American Experience And Its Implications For Ghana And Other International School Systems, George Prince Atta

Theses and Dissertations

The purpose of this study was to develop better understanding of professional learning communities (PLCs) and how they have evolved over the years as a comprehensive school reform to improve teachers’ knowledge, skills, and instructional practice as well as students’ achievement during accountability periods. It also explored whether learning communities had democratic principles as their foundations. The study revealed how learning communities had evolved historically, conceptually, and theoretically. It also revealed that with commitment on the part of principals and teachers, and principals distributing leadership, PLCs were very effective in enhancing the knowledge and instructional strategies of teachers, and improving …

Refining Transformation Rules For Converting Uml Operations To Z Schema, Tamaike Brown

Theses and Dissertations

The UML (Unified Modeling Language) has its origin in mainstream software engineering and is often used informally by software designers. One of the limitations of UML is the lack of precision in its semantics, which makes its application to safety critical systems unsuitable. A safety critical system is one in which any loss or misinterpretation of data could lead to injury, loss of human lives and/or property. Safety Critical systems are usually specified by very precisely and frequently required formal verification. With the continuous use of UML in the software industry, there is a need to augment the informality of …

Blizzards In The Upper Midwest, 1980-2013, Lawrence Burkett

Theses and Dissertations

Blizzards are severe snowstorms characterized by high winds and enough snow in the air to significantly reduce visibility near the surface. In the conterminous United States, published scientific literature indicates blizzards as common in the Dakotas and Minnesota. In this study, blizzard frequency by year, month, and county was recorded from 1980-2013 in eastern North Dakota and northern Minnesota. Additionally, blizzard duration and area impacted were estimated including trends in blizzard frequency. Ninety-three blizzards impacted the Upper Midwest in 34 years studied with an average of 2-3 blizzards per year, with a linear increase in blizzards with respect to time. …

Non-Reified Space: Henry James's Critique Of Capitalism Through Abstractness And Ambiguity, Elizabeth Aileen Barnum

Theses and Dissertations

Despite Henry James’s reputation as a novelist of upper class manners, many critics have argued that his work also contains well-grounded criticism of capitalism and consumer culture. An even larger number of writers have analyzed James’s idiosyncratic style, characterized by ambiguity and abstractness. Where these two analytic approaches overlap, the area examined in this dissertation, James makes a deeper critique of capitalism’s redefinition of human purpose and its reification of the human mind and consciousness. James suggests, through his ambiguous and abstract language, that open-ended language which rejects concrete and conceptual meaning can gesture toward a space in which people …

The Relationship Between Religiosity And Health-Promoting Behaviors Of Pregnant Women At Pregnancy Resource Centers, Natalie Ann Cyphers

Theses and Dissertations

Introduction: While religiosity (e.g. prayer, attending church) has been reported to be related to health behaviors in pregnant women, whether religiosity was related to health-promoting behaviors in pregnant women at Pregnancy Resource Centers (PRC) had not been previously studied. The purpose of this research study was to explore the relationship between religiosity and health-promoting behaviors of pregnant women at PRC. PRC are Christian community-based centers with a focus on meeting needs of pregnant women.

Methods: Pender’s Health Promotion Model guided this descriptive correlational study. A consecutive sample included pregnant women who knew they were pregnant at least two months, could …

The Effect Of Policy Context On Work And Family Identity In Norway And The United States, Rebecca Folkman Gleditsch

Theses and Dissertations

Scholars are interested in how social policies affect citizens on issues related to work and family. Previous research has made comparisons of work and family in Scandinavia and the United States, emphasizing differences in history, development, and current social policies. However, much of the literature focuses on countries within the European Union, and research on how gender and social policy correlate with work and family identities is particularly scarce in Norway. To examine the effect of social policies on work and family identities, this study analyzes if men and women in Norway and the United States differ in the strength …

Student Perceptions Of Digital Resources And Digital Technology In A Flipped Classroom, Larry S. Guggisberg

Theses and Dissertations

The purpose of this study was to analyze student perceptions of flipped classroom instruction strategies, and student perceptions of their learning experience using digital resources and digital technology in a flipped classroom. Although perceptions are important, student achievement is a common tool used by policy-makers and judged by the general public as a means to evaluate and achieve continuous improvement in K-12 public education.

This case study may be a beneficial illustration for school administrator practitioners to consider prior to implementation or utilization of flipped classroom instructional strategies. The study provides a review of a high school that first implemented …

Student Teachers' Beliefs In Practice: Impact Of Teacher Education Preparation On Reading Curriculum, Assessment, And Instruction, Brittany Dawn Hagen

Theses and Dissertations

Reading education programs are responsible for developing effective teachers equipped with the foundational knowledge and instructional approaches to deliver a comprehensive and balanced literacy curriculum. The purpose of this study was to assess the impact of teacher education reading programs on student teachers’ ability to understand and implement reading curriculum, assessment, and instruction, and to understand the extent to which students are transferring professional knowledge in practical ways. Participants of this explanatory sequential mixed methods study included 19 elementary spring student teachers from three Midwestern states. Quantitative data was collected through a survey sent to over 200 student teachers. Seven …

Interpretative Phenomenological Analysis Of Graduate Students' Experiences Of Plagiarism By Their Professors, Kimberly Dawn (Hanson) Becker

Theses and Dissertations

This phenomenological study expands the inquiry on perceived academic misconduct by investigating the experiences of graduate students who have reported a professor’s misattribution of their work. The participants include five graduate students who formally reported a violation of academic integrity because they believed a faculty member had misattributed their work. During the incident, the faculty and students both participated in an academic setting in one or more of the following types of relationships: committee chair–advisee, committee member–student, classroom professor–graduate student, and research supervisor–graduate assistant. Two central research questions frame this study: How do graduate students who have reported that their …

Voices From The Frontier: Stories Of Nurse Practitioners Working In Remote Areas, Lynn Marie Jakobs

Theses and Dissertations

Frontier communities are the most sparsely populated and geographically remote areas in the United States. Residents of these communities often lack access to healthcare resources of any kind. Nurse Practitioners (NPs) are more likely than physicians to practice in these areas and provide a vital link in the frontier healthcare safety net.

This narrative inquiry into the practice experiences of frontier NPs informs the discipline of nursing regarding the significant contribution frontier NP practice makes to the delivery of frontier healthcare. This inquiry creates a repository of stories upon which nurse leaders, health care policy makers, and nurse educators interested …

Digital Games For 21st Century Learning: Teacher Librarians' Beliefs And Practices, Amanda Hovious

Theses and Dissertations

Digital games as tools for learning in K–12 have been a topic of intense discussion over the last 15 years. One area of focus has been on the integration of commercial off-the-shelf games in lesson plans. A predictive factor for the adoption and integration of digital games is the attitudes or readiness of teachers. Yet, while many studies have examined this with teachers themselves, teacher librarians (TLs) have largely been ignored, despite the key role they play in education and technology adoption in schools. This study attempted to determine TLs’ beliefs and practices about digital games as 21st century learning …

Teacher Performance Assessments: Exploring Student Perspectives Of The Edtpa, Teri Jo Langlie

Theses and Dissertations

At least 34 states require teacher candidates to complete a comprehensive teacher performance assessment (edTPA) during their student teaching experience. Teacher candidates are assigned the edTPA during this critical time in their preparation. One state--Minnesota--uses the edTPA portfolio exclusively for teacher preparation program approval. Teacher candidates in Minnesota thus devote considerable effort, during a critical time in their teacher preparation program, in the completion of an assessment where the results do not affect their ability to obtain a teaching license. This study explored the impact of the edTPA's timing and perception of personal benefit on the level of effort teacher …

Perspectives On The Qualities, Knowledge, And Skills Of Effective Emotional/Behavioral Disorders Teachers, Joseph Leggio

Theses and Dissertations

This study explored the perceptions of six teachers of students with emotional and behavioral disorders (EBD) in one school district. In individual interviews, the teachers shared their perceptions of the qualities, knowledge, and skills necessary for EBD teachers to be effective. Five of the teachers gathered for a focus group to discuss the findings from the analysis of the interview data.

An analysis of the data yielded three themes. First, effective EBD teachers develop unconditional teacher-student relationships. No matter how many setbacks a student with EBD may experience, the effective EBD teacher relentlessly affirms his or her belief in the …

The Efficacy Of Teaching Academic Vocabulary To Kindergarteners In An Explicit, Literacy Based Method, Hannah Mae Loesch

Theses and Dissertations

Vocabulary test scores from the ZOT, a researcher designed assessment, were obtained from kindergarten students (n=36) involved in a vocabulary intervention pilot study. The purpose of the current study was to (a) investigate if kindergarten students can learn academic vocabulary through a whole classroom approach to intervention during a brief story book reading session, (b) compare academic vocabulary learning between two methodological approaches and (c) compare the differences in learning of specific academic words. Comparison of mean ZOT results suggested (a) participants who did not receive special services through an Individual Education Plan (IEP) learned academic vocabulary (d = 1.76; …

The Plagues Of Colonialism: Representations Of Suffering In The Colonial And Postcolonial Francophone Algerian Novel From 1950-1966, Benjamin Jack Sparks

LSU Doctoral Dissertations

The indigenous Francophone Algerian novel dates from the early 1950s and since then has been a political manifestation of uneasiness. The anticolonial undertones of this literature demonstrate the sufferings and harsh realities of life under an oppressive colonial regime; meanwhile the postcolonial novel continues the representation of this suffering through the residual effects of colonialism and the impact of the bloody decolonization war. This dissertation contributes to the discourse regarding suffering as a result of French colonial oppression in light of François Hollande’s official recognition of the trauma of colonialism and the acceptance of the events from 1954-1962 as a …

Listservs, Learning Communities, And Baby Steps: North Dakotan Rural Educators And The Implementation Of The Common Core State Standards, Emmanuel Mensah

Theses and Dissertations

The Common Core State Standards mark the latest state-led efforts to standardize K-12 education in the United States. The initiative aims at providing a clear and consistent framework to inspire students to develop strong foundational knowledge and deep conceptual understanding, skills considered critical for shaping students’ college and career readiness and successes. Given the continuing importance of educators’ role in translating the new content standards into achievable goals, it was useful for stakeholders to understand how educators in rural districts in the state of North Dakota were developing the local capacity to navigate the changes.

This qualitative study used a …