Digital Commons Network^™

A Two-Dimensional Simulation Of Grain Structure Growth Within Substrate And Fusion Zone During Direct Metal Deposition, Jingwei Zhang, Lei Yan, Wei Li, Frank W. Liou

Mechanical and Aerospace Engineering Faculty Research & Creative Works

In this chapter, a predictive multiscale model based on a cellular automaton (CA)-finite element (FE) method has been developed to simulate thermal history and microstructure evolution during metal solidification for direct metal deposition (DMD) process. The macroscopic FE calculation that is validated by the thermocouple experiment is developed to simulate the transient temperature field and cooling rate of single layer and multiple layers. In order to integrate the different scales, a CA-FE coupled model is developed to combine with thermal history and simulate grain growth. In the mesoscopic CA model, heterogeneous nucleation sites, grain growth orientation and rate, epitaxial growth, …

Efficient Inverse Design Of Transonic Airfoils Using Variable-Resolution Models And Manifold Mapping, Xiaosong Du, Leifur Leifsson, Slawomir Koziel

Mechanical and Aerospace Engineering Faculty Research & Creative Works

This paper presents an efficient approach for simulation-based inverse design of airfoil shapes using variable-fidelity computational fluid dynamics models and manifold mapping (MM). Inverse design involves determining an airfoil shape fulfilling a given target performance characteristic. In particular, the pressure coefficient distribution is typically used in aerodynamic inverse design. Such a task can be challenging when using computationally expensive simulations. In the context of local optimization, the MM technique searches for a new design in the vicinity of the current design by constructing a fast multi-fidelity model, which is setup by the available evaluations of each of the high- and …

The Effectiveness Of A "Patient Discharge Information" Booklet In Patient Education Programs In Saudi Arabia, Amani Mohammed Al Rebeh

Dissertations and Theses @ UNI

The purpose of this research was to investigate the effectiveness of the Patient Discharge Information (PDI) booklet on the knowledge, attitude, and behaviors of participants who were cesarean patients in local hospitals in Saudi Arabia. This study investigated the following two research questions: (1) does the participant have information, resources, and understand basic personal health information regarding her health conditions including diagnosis, treatment, self-care management, medication instructions, normal expected symptoms, dangerous signs and what to do, as well as lifestyle changes?; and (2) how does patient discharge information provided by the hospital make a difference in participants’ knowledge, attitude, and …

Christopher Phalen, Graduate Conducting Recital Abstract, Christopher Richard Phalen

Dissertations and Theses @ UNI

Christopher R. Phalen planned and conducted a compilation recital during the Fall semester of 2017. All concerts took place on the campus of the University of Northern Iowa. On October 17, 2017, Phalen conducted the UNI Women’s Chorus and Varsity Men’s Glee Club in the Great Hall of the Gallagher Bluedorn Performing Arts Center. On November 2, 2017, Phalen conducted the UNI Concert Chorale and UNI Singers in the Great Hall of the Gallagher Bluedorn Performing Arts Center. On November 3, 2017, Phalen conducted UNI Cantorei and members of the Northern Iowa Symphony Orchestra as part of the Bach Cantata …

Educational Leadership Development In Saudi Arabia: Experiences Of Participants Of The Saudi Oxford Program For Educational Leaders, Azizah Fhad Alogali

Theses and Dissertations

Given the recent surge of interest in educational leadership development in Saudi Arabia, a qualitative study was undertaken to evaluate the perspectives of participants in one intensive leadership training program called the Saudi Oxford Program for Educational Leaders (SOPEL). Using interview data with SOPEL participants and an analysis of their final projects, a holistic understanding of the participants’ experiences emerged. Findings included a confusion/conflation of concepts of leadership and management; a desire for more responsiveness and sensitivity to feedback on the part of the participants; logistical, linguistic, and administrative hurdles; quality control concerns; and a need to evaluate programs’ effectiveness …

Imprecision In Materials + Production, Phillip Anzalone, Marcella Del Signore, Andrew John Wit

Publications and Research

No abstract provided.

Notes On Imprecision And Infidelity, Phillip Anzalone, Marcella Del Signore, Andrew John Wit

Publications and Research

No abstract provided.

Part 5: Welcome To Your New Home: International Migration And Hampton Roads, Dragas Center For Economic Analysis And Policy, Old Dominion Universtiy

State of the Region Reports: Hampton Roads

Most new international migrants to Hampton Roads are educated, married and gainfully employed. We examine the impact of international migration and look at how immigrants are contributing to economic growth in our region.

Interrogating The Collective: #Critlib And The Problem Of Community, Nora Almeida

Publications and Research

No abstract provided.

Review Of Emerging Approaches In Non- Or Minimally Invasive Glucose Monitoring And Their Application To Physiological Human Body Fluids, Sunghoon Jang, Chen Xu

Publications and Research

The frequent blood glucose monitoring by the diabetics and physicians is a very essential step in the management of the diabetes because this devastating disease can lead the patients to blindness, kidney disease, nervous & circulatory system disease, limb amputations, stroke and cardiovascular disease (CVD). There have been numerous attempts to develop viable painless non- or minimally invasive blood glucose monitoring techniques over the last five decades in order to replace all existing methods of home blood glucose monitoring require drawing a blood sample by piercing the skin. This review describes the principles of two main emerging general technologies such …

A Label Law That Requires No Label, Amy Mclaughlin

University of Dayton Law Review

No abstract provided.

Automatic Approach To Morphological Classification Of Galaxies With Analysis Of Galaxy Populations In Clusters, Madina Renatovna Sultanova

Theses and Dissertations

The classification of galaxies based on their morphology (i.e. structural properties) is a field in astrophysics that aims to understand galaxy formation and evolution based on their physical differences. Whether structural differences are due to internal factors or a result of local environment, the dominate mechanism that determines galaxy type needs to be robustly quantified in order to have a thorough grasp of the origin of the different types of galaxies (e.g., elliptical, S0, spiral, and irregular). The main subject of this thesis is to explore the use of computers to automatically analyze and classify large numbers of galaxies based …

To “Own Yourself A Little More”: Afropolitan Feminism In Chimamanda Ngozi Adichie's Americanah, Bridget Tetteh-Batsa

Theses and Dissertations

Afropolitanism, in part, accounts for itinerant and so autonomous Africans who shape the contours of a late-modern global history. If Afropolitanism describes the work and activism of 21st century Africans in Euro-America determined to challenge western discourses that malign Africa, it is important to witness the distinctive character and voice Afropolitan women bring to that history defining exercise. Otherwise, as critics and scholars interested in what Afropolitanism brings to the work of reframing master narratives hitherto encircled for western primacy, we risk reinforcing the injustice we address.

To fill this gap in the literature, I employ Selasi’s initial conception of …

Educational Technology Integration Among Community College Instructors, Oybek Turayev

Theses and Dissertations

Over the last two decades, educational technology (ET) integration has become an increasingly important aspect of higher education, particularly with the growth of online, distance and hybrid courses and degree programs. Furthermore, accrediting agencies such as the Higher Learning Commission (HLC) are paying close attention to online and hybrid courses and degree programs, making effective use of ET even more important to colleges and universities. Even in traditional, on-campus classrooms, some instructors are not using ET effectively to augment teaching and learning.

The main purpose of this research study was to examine a holistic view of educational technology integration into …

Examining Determinants Of Patient Activation In Chronic Obstructive Pulmonary Disease: A Cross-Sectional Survey Study, Marnie M. Wetzstein

Theses and Dissertations

Introduction: Self-management plays a central role in the treatment chronic obstructive pulmonary disease (COPD). However, the patient characteristics necessary for effective self-management are not understood. The skills, confidence, and knowledge to engage in chronic disease self-care, known as patient activation, may play a key role in the capacity of people to self-manage COPD. How the complex, systemic nature of COPD influences patient activation has not been explored. Therefore, the purpose of this study was to examine the relationships among patient characteristics and health outcomes as determinants of patient activation among community-dwelling adults in the U.S. with COPD. The Revised Wilson …

Origin And Preservation Of Organic-Rich Zones And Kukersite Beds Of The Red River Formation (Upper Ordovician), Williston Basin, North Dakota, Spencer Wheeling

Theses and Dissertations

The Red River Formation is North Dakota’s third most productive hydrocarbon unit. The unit has been interpreted to be self-sourced, but the locations of the source beds has not been thoroughly investigated within the North Dakota portion of the Williston Basin. Using the most current available data, this study investigated the source beds of the Red River Formation. This present study agrees with past studies that there are two source bed types; the first type being a higher organic-rich, thin kukersite bed and the second being a less organic-rich, thicker organic zone. Both types of source beds commonly occur as …

The Persistence Of Orientalism And The Positive Portrayal Of The Gulen Movement In The New York Times And In The Wall Street Journal Between 1985 And 2016, Yonca Ipek Cubuk Uzundag

Theses and Dissertations

This thesis argues that the positive portrayal of the Gulen (Hizmet) movement in the New York Times and the Wall Street Journal is a direct result of persistent Orientalism in the American academia and news media. The evidence reveals that most of the articles published in the New York Times and in the Wall Street Journal Between 1985 and 2016 and the majority of academic works completely ignored the controversial nature of the Gulen movement. This favorable approach portrays Islam as monolithic and indicates the otherness of Muslims by subjecting them to a separate set of standards for “moderation.” This …

A Mixed Method Study Of The Impact Of Advanced Placement, International Baccalaureate, And Dual Enrollment Courses On College Transition And Success, Kazimir Bartley Gazdzik

Theses and Dissertations

In an educational environment that has limited resources, and greater pressures for increased academic standards, what is the best option to help prepare high school students for college academics? This research study: A Mixed Method Study of the Impact of Advanced Placement, International Baccalaureate, and Dual Enrollment Courses on College Transition and Success attempted to investigate the impact of advanced courses on college transition.

The results of this research showed no statistical difference in academic success or transition to college between students who had taken advanced classes and those who had not. There were also no statistical differences between students …

International Freshmen Student Satisfaction With Campus Environments At U. S. Institutions Through The Lens Of The National Survey Of Student Engagement (Nsse), Ludmi Herath

Theses and Dissertations

International students’ enrollment has continuously increased over the past decade. According to the Open Doors Annual Report, published and distributed by Institute for International Education (IIE, 2016), more than one million international students studied in the United States from 2015-2016; according to the same report, international students generated more than $36 billion to the United Stated (U.S.) economy making international students the fourth largest import sector to the U.S. economy. As U.S. institutions more aggressively recruit and retain international students, it is critical to learn how to serve this growing population—to learn of their needs and offer corresponding tools, programs …

Wayward Girls, Amanda Susan Osgood Jonientz

Theses and Dissertations

Wayward Girls represents a culmination of my creative and critical work at the

University of North Dakota. The dissertation includes a critical introduction, a collection of short stories, and a pedagogical article. In my critical introduction, I explain ways in which I manipulate narrative and time, the decisions I make about levels of discourse, my use and experimentation with conventional forms of plot, and my work in the short-story cycle genre. My collection of six short stories includes works about women at crucial turning points in their lives. Set in the Pacific Northwest, the stories range in time period from …

Relationship Effects Of Action Control And Temperament Scale (Reacts): Establishment And Validation Of An Interpersonal Sensitivity Scale, Alyssa Noelle Rowland

Theses and Dissertations

Relationship Effects of Actions, Control, and Temperament Scale (REACTS) has been designed to fill a gap in the literature addressing emotional reactions to hypothetical partner behaviors. The REACTS (intially100 items) was reduced to 24 items following an exploratory factor analysis, resulting in 4 factors: Jealousy and Control, Relationship Consciousness, Infidelity, and Substance Use. Temporal stability was established using a college sample (n = 71). Internal consistency was established for both a college and an online national sample (N = 879) after accounting for inclusion/ exclusion criteria. While it was expected that convergent validity would be established with a measure of …

Stroop And Mindfulness: An Experimental Multi-Group Comparison, Anna Lauren Schimmelpfennig

Theses and Dissertations

Mindfulness has been associated with various benefits, including enhanced cognitive performance and disengagement from problematic emotions. Previous research has indicated that engaging in a brief mindfulness exercise may enhance performance on the Color Word Stroop, neutral Stroop, and emotional Stroop. Participants in the current study were 201 students (139 female), mean age 19.7 years (SD=1.4) from a Midwestern university, who were randomly assigned to listen to a 9- minute mindfulness exercise, progressive muscle relaxation (PMR) exercise, or interview control condition before completing the Color-Word Stroop, Neutral Stroop, and Emotional Stroop. Preliminary analysis reveal that participants generally had positive attitudes toward …

Exploring Student Perspectives On Elementary To Middle School Transition Practices, Erin Spies

Theses and Dissertations

Characteristics of effective transition programs include (a) providing realistic experiences of middle school expectations for incoming students, (b) frequent communication with students, parents, and staff, and (c) extensive and ongoing planning, assessment, and redesign of the transition program. While these effective components of a transition program have been recommended based on research, student reflection on essential elements have not been included. The purpose of this study was to use phenomenology research methods to identify components of middle school transition programs from the perspective of middle school students. The study analyzed current transitional practices and their alignment with Schlossberg’s Transition Theory …

The Effects Of Cultural Participation On Health Outcomes Among American Indian/Alaska Native Elders, Collette Adamsen

Theses and Dissertations

American Indian/Alaska Native (AI/AN) history represents a number of traumatic events inflicted upon each tribal generation that has yet to recover. These events have led to major consequences on the health of this population. AI/AN people experience the worst health disparities in the nation (Espey et al., 2014; Warne & Lajimodiere, 2015). Previous studies have shown that loss of land, cultural devastation, and inadequate health care access are associated with the high rates of health disparities endured by AI/AN people throughout North America (Walters, et al., 2011). AI/AN beliefs tell us that culture serves a fundamental role in managing good …

Quantifying Extravehicular Activity Performance Degradation Due To Sustenance Deprivation, Eryn Beisner

Theses and Dissertations

Modern EVAs (spacewalks) performed onboard the International Space Station require astronauts to endure up to twelve hours of intense mental and physical exertion without food, as they do not stop to eat nor do they currently have the capabilities to consume sustenance in their spacesuits. With the future of space exploration taking aim at the Moon, Mars, and beyond, EVAs are expected to become more demanding than ever. This is a pilot study to attempt to quantify astronaut performance during an EVA to determine if there is significant performance degradation because of acute starvation. Astronauts conducting EVA training at NASA’s …

Intonation Production And Perception In Children With Developmental Language Impairment, Afua Blay

Theses and Dissertations

Studies on intonation production and perception in children with developmental language impairment (LI) have reported mixed outcomes. Some suggest that intonation processing is impaired in this population but others fail to find any evidence of such a deficit. The issue is further complicated by findings that indicate that these children perform poorly on some intonation tasks but not on others. The source of the discrepant findings is unclear. However, one shortcoming is that most previous studies do not report information on severity of LI of participants. Thus, it may be that the mixed findings on intonation processing in children with …

Examining Teacher Perceptions On Change In Secondary School Libraries To Promote Informational Literacy, Sarah Crary

Theses and Dissertations

Libraries in schools are changing from a place to check out books to providing access to information from a multitude of media. The specific changes needed in school libraries and the method to accomplish those changes, specifically from the perspective of teachers, is an area of research with few empirical studies. The purpose of the study was to use Fullan’s Change Theory (2007) initiation phase to identify how ready teachers are to engage in changing the way information literacy skills are taught. The researcher investigated teachers’ perception with openness to change. The researcher analyzed teachers’ perceptions about collaborative roles between …

Wild And Domestic: Short Stories, Sara E. Dupree

Theses and Dissertations

Wild and Domestic is a collection of short stories set in rural northwestern Minnesota that center around themes of parenting, family, and the desire for stability and security. This desire for domestic harmony often comes into conflict with the characters’ strong desire for personal freedom, self-expression, sexual gratification, and a deeper connection to the natural world—desires that are linked to the concept of wild. The collection also invites readers to reflect on its animal characters. In many of the stories, animal characters, both wild and domestic, play a role in setting up the crisis or climax of the story by …

"Representative Bureaucracy" In Police Hiring Practices: A Case Study Of A Diverse Police Agency, Sara Franceen Edel

Theses and Dissertations

Diverse police agencies that are reflective of communities they serve are vital to community-oriented and problem-oriented policing, and in repairing fractured relationships by establishing trust and a partnership with communities. Agencies that engage in community-oriented and problem-oriented policing also attract more female officers and officers of color. The purpose of this study is to describe how one police agency in the Midwest recruits, hires, and retains a representative agency, and to describe what factors are important in this process. It is a descriptive, single case study that uses triangulation of multiple methods, including quantitative and qualitative methods, and multiple data …

Critical Counseling Competencies For The English-Speaking Caribbean, Antonia Forbes

Theses and Dissertations

The development of competencies for counseling persons from varying cultures around the world is an important topic of discussion within the field of counseling psychology (Turner-Essel, & Waehler, 2009; Ng & Noonan, 2012; Gerstein & AEgisdottir, 2007). Mental health and socio-emotional needs know no geographical boundaries and as such require attention in many populations which have limited formal services for these concerns. If we are to follow the multicultural competence guidelines within our discipline (Sue, Arredondo & McDavis,1992; Vera & Speight, 2003) we must meet these needs in a way that first seeks to understand our clients’ cultural backgrounds and …