Digital Commons Network^™

Factors That Influence Superintendents In Iowa To Implement A One-To-One Computer Initiative, Gerald Eugene Schnabel

Dissertations and Theses @ UNI

The purpose of this study is to identify factors that influence superintendents in Iowa to implement a one-to-one computer initiative. An in-depth, phenomenological based interview method was used. Two interviews were conducted with each of the five superintendents in the study. The superintendent responses were then organized using the Saskatchewan Educational Indicators, which are context, process and outcome indicators. The major questions addressed in the study were: 1. What factors influenced the decision to implement a one-to-one computer initiative? 2. What are the results of implementing a one-to-one computer initiative? 3. What decision-making process do superintendents in Iowa use when …

Identification Of Motivation In Senior Individuals Who Engage In The Adventure Experience Of Ice Climbing, Donald B. Briggs

Dissertations and Theses @ UNI

Research has shown that individuals participate in high adventure activities for a variety of reasons. This study identified motivational factors for seniors, 55 and older, who participate in the high adventure activity of ice climbing. Semi-structured interviews were conducted with eight senior ice climbers who had at least three years of experience, had climbed the Midwest Silos, and were familiar with the researcher. Using a constant-comparative method, primary and secondary themes were identified from the data.

The findings of this study suggest senior ice climbers participate for a variety of reasons with the primary motivators of self-efficacy, social interaction, fun, …

An Examination Of Opposing Theoretical Perspectives: Are The Current Assessment And Instructional Practices For Students With Emotional And Behavioral Disorders And Mental Health Issues Effective And Sufficient?, Karen Aldrich-Duden

Dissertations and Theses @ UNI

Increasing student achievement is the purpose of all educational programs, including the programs for students with disabilities. The adequacy of the educational programing for students with emotional and behavioral disorders (EBO) who also have mental health issues was the focus of this qualitative study. Specific attention was paid to the assessment and instructional practices used with students with EBO in order to answer the research question: Are the current assessment and instructional practices for students with EBD and mental health issues effective and sufficient? This study explored the potential benefits of using an ecological theoretical framework based on the bioecological …

Quasi-Experimental Evaluation Of Undergraduate Learning In A Multidimensional Wellness Course, Kristi Leonard

Dissertations and Theses @ UNI

Introductory wellness courses are common among American institutions of higher education. These courses are typically of a unidimensional approach, focusing on just the physical component of wellness. Some wellness educators would argue that a multidimensional approach is a richer and more valuable learning experience. Furthermore, technology has played a larger role in wellness education, as it is being created, developed, and implemented into the field. Therefore, college wellness educators and curriculum designers need to determine the implications for both online and face-to-face instructional methods in their execution of teaching the holistic concept of wellness to their students.

The purpose of …

Integrative And Holistic Global Higher Education : An Investigation Of Camp Adventure Child And Youth Services As A Model Service Learning Program, Bin Ruan

Dissertations and Theses @ UNI

Camp Adventure™ Child and Youth Services (CACYS) is a distinctive academic program that emphasizes service learning opportunities for students. It focuses on preparing students with necessary knowledge, skills, and competencies to plan and implement the services for children and youth of varying lengths with a focus on different ages and needs. The primary purpose of this study was to investigate the changes of college and/or university students in core competencies from entry to exit in the CACYS using a framework offered by Bok (2006). The core competencies included in this study were communication, critical thinking, character development, citizenship, diversity, global …

The Difference Connection Makes : Roles The Middle School Teacher Plays In Changing Adolescent Girls’ Lives, Denise M. Pralle

Dissertations and Theses @ UNI

Within the classroom setting, 'fitting in' can be a very difficult matter for both students as well as teachers. A sense of community and respect for others, which prevails in the elementary grades, seems more subdued among middle-schoolers as competition and the struggle for independence becomes part of the hidden curriculum. Adolescent girls especially struggle to imitate what developmental psychologists suggest is necessary at this age: independence and disconnection from others. However, disconnection at this stage of development may partially account for the competition, disrespect of others, and loss of morality in and out of the classroom. Connected classroom teachers …

Manufacturing And Performance Evaluation Of Out-Of-Autoclave Sandwich Composites, Sriram Nagarajan

Masters Theses

"Composite sandwich structures are being increasingly employed in applications which require high strength, high in-plane and flexural stiffness coupled with a reduction in weight. Sandwich composites used in the aerospace industry are typically manufactured using high pressure autoclave processing which is expensive and time consuming. A viable low cost alternative is the Out-of-autoclave (OOA) process. One of the most dominant failure modes in sandwich composites is the debonding that occurs at the facesheet skin to core interphase leading to severe degradation of structural properties of the sandwich. A well formed adhesive bond at the skin to core interphase and improved …

Systems And Image Database Resources For Uav Search And Rescue Applications, David Christopher Macke Jr.

Masters Theses

"Aerial search and rescue applications using unmanned aerial vehicles (UAVs) can incorporate image processing technologies to locate targets faster and with a higher degree of accuracy. The task of developing such systems involves the development of both hardware and software components. Examples of both hardware and software approaches in the design process for an aerial imaging system are shown for small UAV applications. This project contains resources to help facilitate the incorporation of UAV applications into educational ventures and design projects. A power supply design is done for a lightweight imaging system and a large database of aerial images is …

Part I: Increased Leaching Of Arsenic, Selenium, Molybdenum, And Vanadium From High Calcium Coal Ash Containing Trona Reaction Products. Part Ii: Using Agricultural Byproduct Rice Hull As Biosorbent To Remove And Recover Metal Ions In Water, Yongbo Dan

Masters Theses

"Part I. The trona is being injected to control SO_x emission from coal-fired power plants. The results showed that trona ash leached significantly more As, Se, Mo, and V than the control fly ash did, especially under the natural pH condition. In addition, trona ash had a significantly greater soluble fraction than the control ash. Further investigation indicated that greater amounts of the studied anionic elements in the trona ash were associated with the soluble, trona reaction products. Moreover, the insoluble fraction of the trona ash lost its capability to adsorb these elements under the natural pH condition. The …

Fluidic Sensor Devices Utilizing Dry Film Resist As Main Structural Materials, Sijia Gong

Masters Theses

"In this thesis, two types of fluidic sensor devices are demonstrated. The first device utilizes a dry film resist (DFR) as the main structural material of fluidic device utilizing the photolithography process. The second one involves a simple, low-cost sensor platform composed of ubiquitous materials such as polymer tubing and metal wires. Both devices are prepared to measure the dissolved oxygen content, as a model target analyte, based on the oxygen quenching reaction of a ruthenium complex fluorophore as the reporting agent. Characterization of sensors is conducted based on the fluorescence lifetime measurement. The first type of sensor is constructed …

Graduate Viola Recital, Andrea Lynn Alert

Dissertations and Theses @ UNI

Andrea Alert performed a graduate viola recital at six o'clock in the evening on Friday, March 29, 2013, in the Gallagher-Bluedorn Performing Arts Center's Davis Hall. Pianist Serena Hou collaborated with Ms. Alert to present selected works by various composers. The program opened with Johann Sebastian Bach's Sonata in G Major, BWV 1027, followed by Gregor Piagiorsky's arrangement of Franz Joseph Haydn's Divertimento in D Major, followed by the first movement of Paul Hindemith's Der Schwanendreher. The program ended with Sonata for Viola and Piano, op. 22 by Marion Bauer.

Aquatic Strategies And Techniques And Their Benefit On Children With Autism, James G. Hall

Dissertations and Theses @ UNI

Swimming lessons are recommended as a useful health promotion intervention and life-saving skills for individuals with ASD. This qualitative study examined the perceived benefits of swimming lessons for children with ASD, with particular focus on aspects that can potentially help maximize the instruction of lessons for this population. This study utilized multiple methods to gain an in-depth perspective on the implementation of strategies and techniques for learn-to-swim programs for the six subjects with ASD. Semi-structured personal interviews were conducted with two instructors, the parents of the six children along with observational data collected from the researcher. Thematic analysis of the …

Evaluating The Effects Of Increasing Mathematics Graduation Requirements: A Survey Of The Effects Of State Policy Change In Illinois, Corey Tafoya

Dissertations and Theses @ UNI

In the summer of 2005, Illinois lawmakers made the decision to elevate the graduation standards for students, joining an increasing number of states who decided current requirements in their state were insufficient. This legislation affected aspects of English, science, and mathematics. The most significant change resulted in the increase of mathematics study from two years of mandatory study to three years in order to graduate. Any district that did not already require students to take three years had to decide how to react to this new requirement. This quantitative research study was designed to examine what effects this change had …

Perceptions Of Dimensions Of Service Quality And Recreational Benefits In Collegiate Recreational Sports Programs, Christopher Berne Denison

Dissertations and Theses @ UNI

An enduring and essential element of collegiate recreational sports programs is an emphasis on providing high quality, high impact programs and services. In addition, participants in collegiate recreation settings have an expectation to receive benefits as a result of their participation. If recreational sport programs cannot meet the expectations of participants in their pursuit of these benefits, continued participation is unlikely. As collegiate recreational professionals work to continually improve their programs and services, they should also understand the needs and wants of their participants. Understanding what participant needs and wants are should allow leisure service providers to improve the programs …

"The Most Deadly Spot On The Face Of The Earth": The United States And Antimodern Images Of "Darkest Africa" 1880-1910, Melinda Stump

Dissertations and Theses @ UNI

During the late nineteenth and early twentieth-centuries in the United States, images of Africa and Africans were prevalent throughout society. Africans were described as primitive or child-like and were contrasted with the so-called high civilization of middle-class Anglo-Saxons. This thesis will look at these images and attempt to complicate the current historiography on United States images of Africa. Furthering Jackson Lears’s theories of antimodernism in Progressive Era United States, I argue that the images produced of Africa and Africans were attempts at regeneration and intense experiences. Due to the huge progress made due to the Industrial Revolution and the urbanization …

A Midwestern Culture Of Civility: Student Activism At The University Of Northern Iowa During The Maucker Years (1967-1970), Christopher J. Shackelford

Dissertations and Theses @ UNI

This project examines the changing social dynamic of those affiliated with the University of Northern Iowa during the latter half of the 1960s, with special emphasis on student activism and the changing attitudes of administrators and community members. This project intends to use the medium of alternative newspapers as a central component in the analysis of the time studied and as an unfiltered voice of student dissent. By narrowing the focus of this project to an individual university and community, an intimate narrative emerges that acts as a testament of the overwhelming atmosphere of change that engulfed American colleges throughout …

Behind The Mask: An Analysis Of Women's Perceptions And Rationale Toward The Purchase And Use Of Anti-Aging Products, Clair Maureen Williams

Dissertations and Theses @ UNI

An exploratory study was done to unveil a more contemporary and intimate look at women and aging in U.S. society. This qualitative research explored what women do, if anything, to confront pressures associated with aging. Purposeful sampling was used to homogenize the participant sample for increased richness of data. Criterion was as follows: women, 50’s age range, married with children, Caucasian, from the Midwest, and who currently use one or more anti‐aging products. In total, 17 women of similar status and background participated in this research. Data collection consisted of in‐depth audio taped interviews followed by immediate transcription. The analysis …

Writing Supports For Older Students With Significant Disabilities: Examining Two Students' Journeys Towards Becoming Writers, Emily Helen Freeman

Dissertations and Theses @ UNI

This study describes the changes in linguistic and social communicative competencies that occurred when two older students with significant disabilities where provided with writing opportunities, instruction, and supports over a semester of the academic year. The goals of the study were to identify themes and patterns in the skills associated with linguistic and social communicative competence as evidenced in writing over time. A second aim of this study was to identify instruction methods and assistive technology supports being used in the classroom and describes the themes and patterns that emerged in the students’ writing given the presence of these curriculum …

Recalcitrant Arguments, Kiranjeet Kaur Dhillon

Dissertations and Theses @ UNI

On January 26, 2011, Reuters photojournalist Amr Abdallah Dalsh took an image of a unknown veiled woman gesturing at Dalsh and his camera. Using TinEye, a reverse image search engine, I found that 86 circulations and 22 recirculations of the photo were primarily in the United States. US graphic artist Nick Bygon created one of the recirculations, which primarily appeared on US blogs. The photo achieved this level of circulation in the US because it is consistent with, and therefore legible within the symbolic language, of the liberal democratic order. Similar to “Migrant Mother” and “Tank Man”, the photo is …

Providing Academic Access To Individuals With Significant Disabilties [Sic], Lindsey Jill Frandsen

Dissertations and Theses @ UNI

Academic access to the general education curriculum for individuals with significant disabilities poses many challenges for educators. With the implementation of the Essential Elements in the summer of 2013, educators will have a new instructional framework for providing access to their students. Within this thesis I have explored the challenges educators face in regards to facilitating academic access for students with significant support needs through the use of focus group interviews, and provide a literature review demonstrating where schools have been in regards to providing access, and where they are headed.

Longitudinal Analysis Of Perceived Body Image, Sport Commitment, Burnout, And Athletic Injury, Erik Chaouch

Dissertations and Theses @ UNI

Injury is a risk that all athletes face while participating in sport. How injuries affect athletes perceived body image, sport commitment levels, and burnout levels are not yet fully understood. Athletes are aware of what the media portrays an athlete as, aware of what peers think an athlete should look like, and even have their own pre-conceived notions as to what an athlete’s body should look like. Many athletes perceive their bodies to be appropriate for their sport, yet there is dissatisfaction with their own bodies in the context of what is socially considered to be attractive. A distorted body …

Long-Term, Low-Dose Exposure Of People Residing In Arsenic Affected Areas Of Iowa: A Cross-Sectional Analytical Study, Junu Shrestha

Dissertations and Theses @ UNI

Arsenic contamination in the ground water source is a major problem throughout the world. Epidemiological studies show that long-term arsenic exposure in drinking water, even at low concentrations, can lead to chronic toxicity problems and negative health outcomes. In the United States, private wells are not mandated to comply with the drinking water standards that piped water is, putting many people at risk. This study focused on monitoring of arsenic contamination of private well water, hair samples, and questionnaire based surveys. Of the 260 private well owners selected from 13 counties in Iowa who were invited to participate in the …

Language As A Social Reality: The Effects Of The Infantilization Of Women, Chelsae R. Huot

Dissertations and Theses @ UNI

The current study examined how people’s perceptions can be affected by various terms used to describe women. Participants from a Midwestern university read a script describing 26-year-old Erin either as a “woman,” a “girl,” or “person.” Participants then rated Erin on eighteen different traits (e.g., mature, forceful). They also completed an ambivalent sexism scale and answered three questions about their use and interpretations of the terms “girl” and “woman.” It was predicted that the participants in the “woman” condition would rate Erin as more mature, responsible, warm, understanding, and successful than the participants in the “girl” condition. Also, it was …

A Master's Recital In Piano, Brittany K. Lensing

Dissertations and Theses @ UNI

Brittany Lensing, pianist, presented her graduate recital at 6:00 in the evening on Friday, September 20, 2013, in Davis Hall of the Gallagher-Bluedorn Performing Arts Center at the University of Northern Iowa. This recital was given in partial fulfillment of the Master of Music degree in piano pedagogy and performance. The program included works by Johann Sebastien Bach, Ludwig van Beethoven, Johannes Brahms, and Sergei Prokofiev. The following abstract will consist of historical and musical commentary on the programmed pieces.

An Investigation On How Operational Wind Turbines Are Used In Secondary Classrooms, James Smith

Dissertations and Theses @ UNI

Through a review of literature, it was found that many schools in the United States are installing operational wind turbines, but it was unclear how teachers were using them in their science, technology, engineering and mathematics (STEM) classrooms. In order to identify how these operational wind turbines were being used and to create a list of expectations for schools with operational wind turbines, this exploratory study surveyed STEM teachers from all across the United States. A stratified random sample was created using a U.S. Department of Energy database of schools with operational wind turbines. Administrators from the selected schools identified …

Development Of An Optimization Model To Determine Sampling Levels, Zlatan Hamzic

Masters Theses

"As the complexity of multi-component products increases the quality of these products becomes increasingly difficult to control. The first step to manufacturing a quality product is making sure that the components of the product meet specifications. Product quality can be controlled through sampling inspection of the components. Two models were developed in this research to determine the optimal sampling levels for incoming lots containing parts for production and assembly of multi-component systems. The main objective of the first model is to minimize the expected cost that is associated with a nonconforming item reaching assembly. In this model the time available …

Use Of Ultra-High Performance Concrete To Mitigate Impact And Explosive Threats, Julie Anne Willey

Masters Theses

"This study is a continuation of research conducted by Natalia Carey, Anthony Wulfers, and Dr. John Myers under the DHS ALERT Center. Carey investigated the use of polyurea coating systems to mitigate close range blast threats on wall panels. Wulfers continued this by using both polyurea coatings as well as a sacrificial wood fiber fly ash (WF-FA) layer to try to get increased performance. This research was aimed at the study of ultra-high performance concrete (UHPC) for the use in impact and blast mitigation. There is little information on the performance of UHPC under close range blast loading; therefore it …

Sybil Detection In Vehicular Networks, Muhammad Ibrahim Almutaz

Masters Theses

"A Sybil attack is one where an adversary assumes multiple identities with the purpose of defeating an existing reputation system. When Sybil attacks are launched in vehicular networks, an added challenge in detecting malicious nodes is mobility that makes it increasingly difficult to tie a node to the location of attacks. In this thesis, we present an innovative protocol for Sybil detection in vehicular networks. Considering that vehicular networks are cyber-physical systems integrating cyber and physical components, our technique exploits well grounded results in the physical (i.e., transportation) domain to tackle the Sybil problem in the cyber domain. Compared to …

A Master Of Music Recital In Flute, Sarah June Coleman

Dissertations and Theses @ UNI

Sarah June Coleman presented a graduate flute recital Tuesday, March 26, 2013 at six o'clock in the evening. This recital was performed in Davis Hall of the Gallagher-Bluedorn Performing Arts Center at the University of Northern Iowa and was given in partial fulfillment of the requirements of a Master of Music degree with an emphasis in flute performance. Musicians assisting Ms. Coleman on the recital were pianist Serena Hou, flutist Hannah Leffler, violinists Anneliese Gentzsch and Laura Hebbeln, violist Alyssa Adamec, cellist Matt McClellan, and conductor Ashley Smith. The program opened with the four movement baroque Concerto in E minor …

Effects Of Machining Parameters And Cooling Strategies On Cutting Forces And Surface Integrity In High-Speed Slot End-Milling Of Titanium Alloy, Emenike Chukwuma

Masters Theses

“Paper 1 presents the results of the investigations of the effects of cooling strategies [Emulsion cooling, Minimum Quantity Lubrication (MQL) and Liquid Nitrogen (LN₂)] and machining parameters (feed rate and spindle speed) on cutting force components, cutting temperature and tool wear during slot end-milling of titanium Ti-6Al-4V workpiece. All machining experiments were conducted using four-flute 0.5 inch diameter uncoated solid carbide end-mill on Cincinnati Milacron, Sabre 750 vertical machining center equipped with Acramatic 2100 controller. Cutting force components were acquired and tool wear was indirectly measured from maximum cutting force variation per slot from the first pass to …