Digital Commons Network^™

Modeling The Condensed-Phase Behavior Of Π-Conjugated Polymers, Walker Mask

Theses and Dissertations--Chemistry

It is well established that the morphology and physical properties of an organic semiconducting (OSC) material regulate its electronic properties. However, structure-function relationships remain difficult to describe in polymer-based OSC, which are of particular interest due to their robust mechanical properties. If relationships among the molecular and bulk levels of structure can be found, they can aid in the design of improved materials. To explore and detail important structure-function relationships in polymer-based OSC, this work employs molecular dynamics (MD) simulations to study various π-conjugated polymers in different environments. Two independent investigations are discussed in this work. One investigation examines how …

Middle School And High School Teachers' Actual And Perceived Use Of Praise And Reprimand, Melissa Beaudoin

Masters Theses

This study aimed to examine teachers' natural praise and reprimand rates among 66 middle and high school teachers. In addition, teachers' perceptions of how often they praised and reprimanded were compared to their actual use of praise and reprimands. A total of 1,320 direct-observation minutes were collected using 20-min observations for each teacher. After teachers were observed they completed a survey rating their perceived use of praise and reprimand. Teachers were observed to use significantly more general praise compared to behavior specific praise. They were also observed to use significantly more mild reprimands compared to any other type of reprimand. …

Teacher Perceptions Of Evidence-Based Classroom Management Practices, Chloe Lindstrom

Masters Theses

The current study examined teachers' perceptions of 20 evidence based classroom management strategics. Participants were asked to complete an online survey that required them to rate their use, acceptability, and self-efficacy for each of the strategies, as well as demographic questions such as whether they had taken a behavior management course during their training program, and how long they have been teaching. Participants included 202 kindergarten through eighth grade teachers across the state of Illinois. Results indicated that teachers on average reported using 18 of the 20 strategies, and that there was not a significant difference in number of strategies …

Student Use Of Institutional Social Media, Hayley Elizabeth Hanger

Masters Theses

This study is a quantitative exploration of student use of their university's social media accounts at a mid-sized Midwestern institution. The survey was conducted via Qualtrics and was emailed to all undergraduate on-campus students. T-tests showed that differences in reason for use existed across gender, race, and first-generation status. Chi Square test results showed a statistically significant gap between the amount of White and non-White students following institutional social media accounts. Descriptive statistics also indicated that lack of awareness is the driving reason students do not follow institutional social media accounts. Recommendations were made to increase advertisement of social media …

Exploring High School Students' Attitudes Towards Reading, Heather G. Crivilare

Masters Theses

This study explored high school students’ attitudes towards reading as both a recreational activity and academic endeavor; while there are numerous studies regarding the reading habits of younger children, there is a deficit of research into the reading habits of students beyond the middle school years. This study surveyed and interviewed freshmen-through-senior students in a medium-sized, rural Illinois high school about their habits as readers in order to explore the relationship between different environmental factors and reading, as well as between reading habits and college readiness. This study found a gender gap in reading enjoyment favoring female students; a decline …

College Students Experiences Participating In International Alternative Break Trips, Dayton L. Ehrlich

Masters Theses

This study sought to explore undergraduate students’ experiences participating in international alternative break trips. A qualitative approach was used to understand the motivating factors as well as the impact the trip had on them. Participants included three female undergraduate students who had participated in an international alternative break trip in Mexico were interviewed one-on-one. The results demonstrated there were multiple different motivating factors and impacts the students experienced. The motivating factors consisted of student involvement, they were all personally invited on the trip, practicing a new language, opportunity to leave the country, and service was not a motivator. The impacts …

Construct Validity Of The Teate Depression Inventory (Tdi) With A Middle Eastern/Arab American Sample, Dalia Bunni

Masters Theses

The purpose of the study was to examine the construct validity of a newer test used to measure depressive symptoms, the Teate Depression Inventory (TDI). The primary focus of the study was on Middle Eastern/Arab Americans (ME/AA). Previous research has demonstrated that ethnic minority groups may experience and present internalizing disorders, such as depression and anxiety differently than the majority ethnic group, White/Caucasian (W/C) individuals. Further, research suggests that there is a disparity in mental health care among ethnic minority groups, starting with detecting and diagnosing mental health disorders. Inaccurate detection and diagnoses informs inaccurate treatment, further creating a disparity. …

Obtaining And Retaining Engagement In Nonprofit Organizations, Sierra Price

Masters Theses

This project is a guide for directors to strategically communicate and display behavior that will influence volunteers to be engaged nonprofit settings. Engagement and motivation is influenced by communicative patterns from directors. Volunteer engagement can result to acceptance of leadership styles, clear understanding of vision, and building trust. Directors should minimize disengagement by fostering behavior that is correlated to working with volunteers in a partnership.

Beyond Words: Newspapers, Language Usage And Disability Stigma, Laura Kruczinski

Graduate Research Theses & Dissertations

Sociology has a long history of documenting socio-political views that are used by media to portray stereotypes and perpetuate the potential stigmas associated with race, social class, gender, and other disadvantaged social categories. There is comparatively little existing research that discusses how media coverage is connected to disability-related stigma. In this thesis, I use grounded theory to construct a content analysis of newspapers coverage of the 2016 United States Presidential Election. From the data, I examine how stereotypes related to disability may be used in political discourse, drawing from the refined theory of stigma, as outlined by Link and Phelan …

Implementation And Evaluation Of Gated Recurrent Unit For Speech Separation And Speech Enhancement, Sagar V. Shah

Graduate Research Theses & Dissertations

Hearing aids, automatic speech recognition (ASR) and many other communication systems work well when there is just one sound source with almost no echo, but their performance degrades in situations where more speakers are talking simultaneously or the reverberation is high. Speech separation and speech enhancement are core problems in the field of audio signal processing. Humans are remarkably capable of focusing their auditory attention on a single sound source within a noisy environment, by de-emphasizing all other voices and interferences in surroundings. This capability comes naturally to us humans. However, speech separation remains a significant challenge for computers. It …

In And Out Of School Literacies: Adolescents Negotiating And Navigating Identities Through Social Media, Brooke Elizabeth Simon

Graduate Research Theses & Dissertations

Through the theoretical lens of connected learning and a pedagogy of multiliteracies, this

embedded case study provides an intimate portrait of two adolescents (ages 14-15), Rehema and

Luis. The focus of the study is their uses of social media both in and out of the classroom, their

purposes, practices, and perspectives surrounding this use, and the tensions that exist between

building and maintaining their identities within social networking sites (SNS) and the crossover

of their teachers and school utilizing these same SNS for learning purposes. The findings reveal

that for these particular focal participants, the use of SNS, both in …

Functions Of Dfrp And Other Drg Pathway Genes In The Moss Physcomitrella Patens, Robert James Srygler

Graduate Research Theses & Dissertations

GTP binding proteins (G proteins) are molecular switches that regulate many aspects of physiology in all cells. DRG1 and DRG2 (Developmentally Regulated GTP-binding proteins) have been found in all eukaryotes examined. Amino acid identity across eukaryotes is about 65% within an orthologous group and 55% between paralogs of a single species. Although DRGs are likely involved in some aspect of translation regulation, details of their precise cellular functions are not known.

In addition to DRGs there are other genes/proteins that comprise the “DRG pathway.” DFRPs (DRG Family Regulatory Proteins) have been shown to physically and genetically interact with DRGs. Previous …

Outpatients' And Treatment Providers’ Cultural Model(S) Of Mental Illness In Northern Illinois, Emily Jean Stephen

Graduate Research Theses & Dissertations

For this thesis, I interviewed outpatients and clinicians from mental health treatment providers from the DeKalb, Illinois area to investigate the cultural models of mental illness held by both groups. I employed ethnographic methods of semi-structured interviews, and with cognitive tasks (free-listing, and pile sorting) to research similarities and differences between the outpatients’ and mental health treatment providers’ cultural models of ‘mental illness.’ Both mental health clinicians and outpatients have experience with disorders commonly termed ‘mental illness.’ I found differences of experience and identity seemed to more strongly influence one’s cultural model of mental illness than one’s level or type …

Ita Language Proficiency Testing: Recommended Replacement For The Speak® Test, Anne Marie Stoughton

Graduate Research Theses & Dissertations

Oral language tests have been used since the 1950s to assess the proficiency of spoken language. In the 1980s and 1990s, the need for oral proficiency testing increased as states began to mandate that universities within their jurisdictions test the English proficiency of instructors due to growing concerns over international teaching assistants’ (ITAs) comprehensibility. Many universities turned to the Speaking Proficiency English Assessment Kit® (SPEAK test), a language proficiency test created and distributed by the Educational Testing Service (ETS), as means to test ITA proficiency in English. ETS’s discontinuance of the SPEAK test in 2010 has forced, and is forcing, …

A Climatology Of Quasi-Linear Convective Systems In The U.S., Jacob Adam Strohm

Graduate Research Theses & Dissertations

Quasi-linear convective systems, or QLCSs, are a common, organized thunderstorm mode in the U.S. Over the last fifty years, severe weather research has focused on the supercell, but, recently, QLCSs have become an increasingly important area of study. Researchers and operational meteorologists realize that this morphology is difficult to forecast and may be responsible for a large proportion of the severe weather reports in the eastern two-thirds of the U.S. This study seeks to determine the degree to which QLCSs threaten humans and their assets by, first, assessing their climatology and, second, measuring their contribution to the severe report record. …

Are They Activated? The Study Of Age Metastereotype Activation In A Workplace Context, Courtney L. Thomas

Graduate Research Theses & Dissertations

This thesis addresses the topic of metastereotype activation in the workplace. The thesis reports research that was conducted in pursuit of two goals. The first goal was the development of an implicit measure of age metastereotype activation. The second goal was to refine and test a theoretical model of metastereotype activation in the workplace. The model suggests that age metastereotype activation in the workplace depends upon contextual elements (e.g., age salience and evaluation salience) as well as various individual difference factors (e.g., age metastereotype consciousness, age identification, age prejudice, public self-consciousness, and external locus of control). Three studies were conducted …

Is A Picture Worth A Thousand Numbers? An Exploration Of Understanding And Recall Of Data Presentations, Holly L. Roof

Electronic Theses and Dissertations

This dissertation reports results of a study with a quasi-randomized experimental component and a protocol analysis, or think aloud, component. The experimental component was designed to determine if people with no statistical training and people with some statistical training differed in their understanding and recollection of statistical information with varying degrees of complexity. Information was presented using data visualization techniques based on cognitive theory and compared to presentations using APA-style numerical tables of statistical output. The focus was on using empirically-supported graphical displays in PowerPoint presentations such as one might see at a research conference. Classroom groups of beginning and …

Psyc 462/862: Motivation And Emotion, Carolyn R. Brown-Kramer

UNL Faculty Course Portfolios

In this course portfolio, I examine the course goals, learning objectives, teaching methods and materials, assessments, and outcomes for an upper-level psychology elective course, PSYC 462/862, Motivation and Emotion. The course introduces students to the major theories of motivation and emotion, develops their ability to critically examine empirical psychological research, encourages the application of theoretical and empirical work to real-world contexts, and strengthens students’ communication skills. For each of the four course goals, I describe how and why I conduct the course as I do, as well as how my pedagogical choices influence student learning and engagement. Data analyses and …

Course Portfolio For Assessing Student Learning Surrounding Biological Examples In Bsen244: Thermodynamics Of Biological Systems, Forrest M. Kievit

UNL Faculty Course Portfolios

Thermodynamics is a course required in many engineering disciplines as it covers concepts utilized in many upper level engineering courses. In the Biological Systems Engineering Department at the University of Nebraska – Lincoln, this course, in a way, acts as a gateway to the major since this will be one of the first classes where the students must apply and hone their problem-solving skills. This course was developed to allow students in the department to have access to a thermodynamics course that relates to their major area of interest – biological systems. However, many concepts in thermodynamics do not have …

Bioc 321: Elements Of Biochemistry – A Peer Review Of Teaching Project Benchmark Portfolio, Jing Zhang

UNL Faculty Course Portfolios

The benchmark portfolio of Biochemistry 321, Elements of Biochemistry, aimed to provide a broad overview for this large-enrollment class for non-biochemistry majors. This course was delivered in a blended format, and the learning objectives were aligned with the American Society of Biochemistry and Molecular Biology (ASBMB) foundational concepts and skills. Classroom response system iClicker was employed and Think-Pair-Share method was utilized to facilitate the in-class discussion and group-learning. Additional activities include the 3D molecular models for visualizing and hands-on learning of the structure-function relationship concept, and practicing problem-solving through the end-of-chapter essay questions. Data analysis suggested that the iClicker response …

Smaller, More Frequent Assessments May Reduce Students’ Ability To Recall Information, Renee M. Mcfee

UNL Faculty Course Portfolios

Frequent, low-stakes, formative assessments can provide valuable feedback to both students and instructors. Formative assessments have also been shown to enhance student learning. However, many STEM instructors, including those in professional schools, rely solely on high-stakes, summative assessments such as unit, mid-term, or final exams. Our goal was to determine how administration of weekly quizzes impacts student learning (n = 27) in a graduate/professional-level veterinary physiology course. For 2 units (endocrine and cardiovascular), weekly quizzes were administered in addition to a summative, unit exam. Quizzes consisted of lower-order questions (e.g. recall) while exams consisted of higher-order questions (e.g. integrate, apply). …

Peer Review Of Teaching Benchmark Portfolio – Sped 414: Instructional Methods For Teaching Mathematics To Students With Mathematics Learning Disabilities, Jessica Namkung

UNL Faculty Course Portfolios

The primary purposes of the benchmark portfolio were to systematically document revisions made to the course, SPED 414: Instructional Methods for Teaching Mathematics to Students with Mathematics Learning Disabilities (SPED 414), to refine and explore more effective ways to teaching the course, and to build better connections and in-depth, higher level in-class activities and discussions. Specifically, I focused on reorganizing the course content, incorporating more hands-on activities (e.g., small and large group discussions, real-life examples), implementing “Keep, Stop, Start” mid-evaluation, and conducting a pre- and post-assessment on the main course objectives. Both qualitative and quantitative analyses based on …

Peer Review Of Teaching Benchmark Portfolio For Soil 477/877: Great Plains Field Pedology, Judith Turk

UNL Faculty Course Portfolios

Pedology is a field that focuses on soil morphology, genesis, classification, and mapping. Students in pedology must learn to be keen observers, who are able to accurately evaluate the characteristics of the soil. This portfolio focuses on efforts to improve students’ skills at describing soil color, texture, and morphologic features.

Course Portfolio For Math 872: Topology Ii, Alex Zupan

UNL Faculty Course Portfolios

In this course portfolio, I explore tactics for engaging a group of beginning mathematics graduate students taking the second semester of the first-year sequence in topology. Course objectives include computing algebraic invariants of topological spaces, understanding the Galois correspondence between covering spaces and fundamental groups, and using a range of invariants to distinguish spaces. My main instructional tools include a series of three "Activities" tailored to each student, a project involving computing invariants with the program SnapPy and using homology of covering spaces to distinguish 3-dimensional knots, and individual student board work during class periods. The activities served as benchmarks …

Fdst 396 – Preventive Controls For Animal Food, Andreia Bianchini

UNL Faculty Course Portfolios

This portfolio is a benchmark for the course Preventive Controls for Animal Food, which was offered for the first time in Spring 2019. The objectives of this course were (1) to provide students with the ability to distinguish between Current Good Manufacturing Practices (cGMPs), other prerequisite programs, preventive controls, and where they fit into the regulatory framework of the Food Safety Modernization Act – Preventive Controls for Animal Food; (2) to help students understand the hazard analysis process and resources to help conduct such analysis; and (3) to teach students the needed concepts to build a food safety plan. This …

Tmfd 144-Intro To Design Theory And Criticism: A Peer Review Of Teaching Benchmark Portfolio, Mary Alice Casto

UNL Faculty Course Portfolios

In this benchmark teaching portfolio, I examine TMFD 144: Intro to Design Theory and Criticism. It is offered every semester. The course focuses on visual literacy in the art and design fields. The overarching course goal is to teach students to actively “see” and interpret the visual world. Students should also learn to communicate clearly and effectively about the visual aspects of art and design as well as their interpretation. This course is a required foundation course for all TMFD majors and minors. It is also an ACE 2 course that enrolls students from across the university. The course is …

Emgt 901: Total Quality Management Using Six Sigma Techniques, Jena Shafai Asgarpoor

UNL Faculty Course Portfolios

Total Quality Management Using Six Sigma Techniques (EMGT 901) is an elective course in the Master of Engineering Management (MEM) Program at the University of Nebraska – Lincoln and serves as my Peer Review of Teaching Project (PRTP). This is an elective course in a fully online program. Students in this program have an earned undergraduate degree in engineering and are practicing engineers with at least two years of work experience. In this PRTP I will examine the development and delivery of the course based on pedagogical and backward design considerations and the framework proposed by Quality Matters ®. I …

Math/Stat 380: Statistics And Applications, Yuzhen Zhou

UNL Faculty Course Portfolios

The portfolio is created for the course STAT/Math380: Statistics and Applications using backward design. It is a service course on introduction statistics for undergraduate students who are not majored in statistics at University of Nebraska-Lincoln. In this portfolio, I’ll provide the detail plans on what I will teach, how it will be taught, and what is my expectation on students learning. Besides, I’ll collect data from students to analyze whether students have achieved the course expectations, from where I’ll adjust and improve the way I deliver the knowledge in the future. This portfolio will be used to help document my …

Legal Research And Writing Lrw (Law 513), Chesi K. Hayden

UNL Faculty Course Portfolios

This portfolio explores and documents student learning in a required first-year law course, Legal Analysis, Research and Writing. This portfolio focuses on two specific course learning objectives: (1) organizing a legal argument (CRAC or a variation) and (2) explaining legal rules. I evaluated student work on the two writing assignments with the most weight—Research Memo 1 and Research Memo 2 to analyze whether students improved their understanding of and ability to perform the selected learning goals. I was specifically interested in student improvement from Research Memo 1 to Research Memo 2 because they represent a formative and a summative assessment …

Annual Report On Philanthropy July 1, 2018 - June 30, 2019

Annual Report on Philanthropy

No abstract provided.