Digital Commons Network^™

Stakeholders’ Perceptions Of An Undergraduate Teacher Preparation Program In Special Education In Jamaica, Keitha Ava Marie Osborne

Theses and Dissertations

The problem addressed in this study was that stakeholders (i.e., graduates, cooperating teachers, principals, and heads of special education departments) of a teacher preparation program in special education at a teachers’ college in western Jamaica had not been asked their perceptions of the effectiveness of the undergraduate program that was started in 2011.

The purpose of the study was to determine stakeholders’ perceptions of the preparedness and effectiveness of graduates of a teacher preparation program in special education at a teachers’ college in western Jamaica. The stakeholders were the recent fulltime graduates of the program, cooperating teachers, principals, and heads …

Teacher Perspectives On Performance Pay In One Southeastern State, Wendy B. Firtell

Theses and Dissertations

This study investigated teachers’ perceptions of a teacher performance-pay initiative. Despite implementing a performance pay initiative at the beginning of the 2015-16 school year, the target school district had not investigated teachers’ perceptions of the initiative. The researcher included a convenience sample of 54 teachers who worked at a Title 1 elementary school located in the southeastern United States.

This applied dissertation used a descriptive survey research design. The researcher found Pre-K, kindergarten, and Grade 1 teachers were slightly more supportive of performance pay initiatives than Grade 2, Grade 3, Grade 4, and Grade 5 teachers (TPPP difference of 0.17 …

Implementing A Research-Based Reading Intervention Focused Upon Increasing Reading Comprehension Amongst Third-Grade Students, Kamaria Dalila Mcnair

Theses and Dissertations

The purpose of the qualitative study was to determine if and how the strategy instruction model Reciprocal Teaching helped low-level readers comprehend what they read. The study also was conducted to measure if and how the Reciprocal Teaching strategies motivated the participants to read and if and how they used the strategies after their exposure to them. Lastly, the study measured the instructional strategies that were currently being used to help third-grade participants. The subjects involved in this study were 10 third-grade students who displayed a need for comprehension development. The sample size was determined by the reading benchmark test …

Effects Of A Sensory Diet On Attention And Participation In Children With Autism, Leighanne Smith-Mrkaja

Theses and Dissertations

This applied dissertation was designed to provide initial knowledge regarding sensory diets and sensory-based interventions. The need for classroom-based sensory interventions are not always considered, especially with the high number of students diagnosed with ASD at the researcher’s school. Often sensory intervention may not be considered educationally relevant, especially in the prekindergarten level. With the proper training and materials, as well as the guidance of the school-based occupational therapist, teachers, other therapists, classroom assistants, parents, and school-based staff might be able to utilize sensory-based activities like sensory diets to increase participation, positive behaviors, and attention. The following applied research study …

A Student Journal To Celebrate, Preserve, And Improve Beginning Undergraduate Writing, Ann E. Biswas, Maureen E. Schlangen, Heidi Gauder

Books and Book Chapters by University of Dayton Faculty

At the end of each semester, composition instructors at the University of Dayton (UD) collected portfolios of student writing for the annual program assessment, encouraging their students to return the following semester to pick up their folders of work. However, the stacks of unclaimed portfolios that piled up in faculty offices each year was an indication that students cared little about what they had written, perhaps believing no one beyond their instructor was interested in reading their writing now or in the future. Nevertheless, academic scholars have recognized that student writing improves—as do a sense of ownership and pride in …

Beauty In Disability: An Aesthetics For Dance And For Life, Aili W. Bresnahan, Michael Deckard

Books and Book Chapters by University of Dayton Faculty

To what extent does dance contribute to an ideal of beauty that can enrich human quality of life? To what extent are standards of beauty predicated on an ideal human body that has no disability? In this chapter, we show how conceptions of proportionality, perfection, and ethereality from the Ancient Greeks through the 19th century can still be seen today in some kinds of dance, particularly in ballet. Disability studies and disability-inclusive dance companies, however, have started to change this. The disabled person can be beautiful, we will show, in dance and in life, under a disability aesthetics that follows …

Oxidative Degradation Of Lignin And Investigation Of Utilization Of Lignin-Derived Materials As Building Blocks For Epoxy Resins, Zhen Fang

Theses and Dissertations--Chemistry

Lignin, the second most abundant biopolymer on earth, is potentially a replaceable source for bulky fuels and chemical feedstocks. There have been numerous reports on methods for the oxidative cleavage of β-O-4 linkages but relatively few reports of how those methods affect other linkages that are present in lignin. We investigated how the β-1 and β-5 linkages respond under oxidative conditions proposed for lignin deconstruction based on their effect on β-O-4 linkages. Mechanochemical treatment of lignin can greatly improve the yield of monomer products and we applied a mechanochemical approach, using powerful ring-and-puck milling to promote lignin degradation. Along with …

Oxidative Depolymerization Of Lignin To Low Molecular Weight Aromatics, Yang Song

Theses and Dissertations--Chemistry

To date, most lignocellulosic biorefinery strategies have focused on optimizing conversion of cellulose to ethanol, leaving lignin as an underutilized biomass constituent. Lignin is engineered by nature with the intent to protect plants from chemical and biological attack; this leaves lignin with high structural irregularity and recalcitrance, rendering conversion of the lignin macromolecule to valuable products particularly challenging. Nevertheless, given that the economics of cellulosic ethanol production are strongly dependent on the value that can be obtained for the lignin co-product, the successful valorization of lignin is a crucial step in the transition towards a bio-based economy.

This thesis focuses …

Bottom-Up Lignomics: Towards The Development Of Adduct Electrospray Ionization Mass Spectrometric Methods To Characterize And Sequence Lignin Oligomers, Shardrack O. Asare

Theses and Dissertations--Chemistry

Lignin, the second most abundant naturally occurring polymer found in plant cell wall has the potential of becoming an alternative source for the production of chemical synthons for the pharmaceuticals and other chemical industries. While much gain has been made towards the development of degradation methods to break down lignin, effective analytical methods are still required to rapidly and accurately identify the products of lignin breakdown experiments. The goal of this work was to develop mass spectrometric methods for the characterization of lignin oligomers based on the study of model lignin compounds.

Unlike peptides and oligosaccharides, lignin model compounds that …

Synthesis And Characterization Of Carbonaceous Particles From Xylose And Soybean Residuals, Shanshan Wang

Theses and Dissertations--Chemistry

Carbonaceous materials, especially in micro and nanoscale, are useful in optical, energy storage, electronic, and biomedical devices or technologies. Techniques have been developed for preparation and modification of the carbonaceous materials, while it is still challenging to tailor the properties of carbonaceous materials effectively and economically. Laser is a powerful tool in academic and industrial laboratories, which also plays important roles in the preparation and modification of high-performance carbonaceous nanomaterials.

In this study low-cost hydrothermal synthesis, high-temperature annealing, and Laser ablation (LAL) methods are developed to prepare functionalized carbon nanomaterials and modify their electrochemical and optical properties.

Sub-micro hollow carbon …

Investigation Of Amyloid Β Oligomer Dissociation Mechanisms By Single Molecule Fluorescence Techniques, Hope Cook Abdalla

Theses and Dissertations--Chemistry

Alzheimer’s disease (AD) is currently considered the most prevalent neurodegenerative disease and places a large financial burden on society as healthcare resources are limited and the disease does not have a cure. Alzheimer’s disease is characterized by the presence of amyloid beta (Aβ) plaques and neurofibrillary tangles; however current literature suggests Aβ oligomers are the main aggregating species leading to AD symptoms. Therefore, the underlying cause of Alzheimer’s, accumulation of amyloid beta, is currently being studied in hopes of developing treatment options. Our research aims at determining the mechanism and kinetics of Aβ oligomer dissociation into non-toxic monomers in the …

Tools For Change: Measuring Student Conceptual Understanding Across Undergraduate Biology Programs Using Bio-Maps Assessments, Michelle K. Smith, Sara E. Brownell, Alison J. Crowe, N. G. Holmes, Jennifer K. Knight, Katharine Semsar, Mindi M. Summers, Cole Walsh, Christian D. Wright, Brian A. Couch

School of Biological Sciences: Faculty Publications

Assessing learning across a biology major can help departments monitor achievement of broader program-level goals and identify opportunities for curricular improvement. However, biology departments have lacked suitable tools to measure learning at the program scale. To address this need, we developed four freely available assessments—called Biology-Measuring Achievement and Progression in Science or Bio-MAPS—for general biology, molecular biology, ecology/evolution, and physiology programs. When administered at multiple time points in a curriculum, these instruments can provide departments with information on how student conceptual understanding changes across a major and help guide curricular modifications to enhance learning.

The Association Between Increase In Maternal Education And Child Behavioral And Academic Outcomes: The Mediating Role Of The Home Learning Environment And Positive Parenting, Samantha R. Awada

Graduate Research Theses & Dissertations

Research on maternal educational attainment has shown associations between higher levels of maternal education and positive child outcomes, such as greater academic proficiency and fewer externalizing problems. Most studies examine maternal education as a stable construct, measuring it at one point in time; however, a sizeable minority of mothers pursue education after the birth of a child. As such, it is important to investigate whether an increase in maternal education is a protective or a risk factor for child outcomes. Further, few have explored the processes through which the association between increases in maternal education and child outcomes exist. The …

Exploring A Bayesian Analysis Of Opinion Dynamics Using The Approximate Bayesian Computation Method, Jessica L. Bishop

Graduate Research Theses & Dissertations

Social media has created a whole new framework in the way we understand ones expression of opinion, and how ones' opinion can influence others. Models of opinion dynamics, such as a probabilistic modeling framework of opinion dynamics over time are given by Abir De, Isabel Valera, Niloy Ganguly, Sourangshu Bhattacharya, and Manuel Gomez Rodriguez in ``Learning and Forecasting Opinion Dynamics in Social Networks." In this paper, we will continue to explore their models, now coming from a Bayesian statistical standpoint, specifically looking at the Approximate Bayesian Computation (ABC) method for the computation of better estimations for the data. We will …

Direct Polymer Grafting As A Method Of Maintaining The Mechanical Properties Of Cellulose Nanocrystals In The Presence Of Moisture, Mary Elizabeth Breen-Lyles

Graduate Research Theses & Dissertations

Cellulose nanocrystals (CNCs) are a distinctive nanomaterial derived from cellulose, the most abundant natural polymer on Earth, and the primary reinforcing structural component of cellulose fibrils found within the plant cell wall. These nanocrystals exhibit mechanical properties comparable to synthetic aramid fibers but are advantageous as they are biodegradable, renewable, and can be produced sustainably as they are predominantly extracted from naturally occurring cellulosic materials. These qualities make it a sustainable, highly renewable and environmentally friendly material to be used in place of synthetic materials in a variety of applications. With their high surface area to volume ratio, low level …

Study Of The Systematic Uncertainties Associated With The Tracking Detectors, Daniel William Boyden

Graduate Research Theses & Dissertations

The muon g-2 experiment at Fermilab looks to measure the anomalous magnetic moment of the muon to an unprecedented precision of 0.14 ppm to verify results from the E821 experiment at Brookhaven National Laboratory. In addition to the anomalous magnetic moment of the muon the project also seeks to search for a muon electric dipole moment with a better precision than has previously has been achieved. These measurement along with standard model predictions may result in a discrepancy between the standard model and experimental results which may give some insight to beyond standard model physics.

This thesis will present the …

Impact Of Agreeableness On Virtual Team Performance Through Team Identification And Shared Mental Models, Alexandria Brown

Graduate Research Theses & Dissertations

Virtual teams help organizations efficiently utilize their employees for a task without the requirement of co-location. The literature on team performance suggests that teamwork is integral to a team’s success; however, in virtual teams this is often a challenge. Certain personality characteristics on virtual teams may be particularly important to the development of effective teamwork. An under-investigated factor is the role agreeableness in virtual team processes and how it affects the overall team performance. The main research question of this study is how the degree of agreeableness on a virtual team affects the overall team performance through predicted associations with …

Utilizing Radiolarian Assemblages To Track Changes In The Agulhas Current Through The Mid-Pleistocene Transition: Iodp Site U1479, William Alberto Bugbee

Graduate Research Theses & Dissertations

The objective of this study was to assess the radiolarian assemblage of the Agulhas Current at International Ocean Discovery Program Expedition 361, Site U1479 (the most westward site), through the Mid-Pleistocene Transition (MPT). Samples between 1,000 to 777ka were utilized to (1) characterize the radiolarian assemblage, (2) observe whether the radiolarian assemblage is sufficiently distinctive to help discern the occurrence of the MPT in the Southern Ocean, and (3) determine whether changes in the radiolarian assemblage reflect a change or changes in ocean currents that may have occurred during the MPT.

Over 300 radiolarian species from 15 different families were …

Development Of Chromatography And Mass Spectrometry Methods For Enzyme Kinetics And Inhibition In Glycolysis And The Methylerythritol Phosphate (Mep) Pathways, Allison Fabino Carr

Graduate Research Theses & Dissertations

This dissertation focuses on method development for enzymatic activity and inhibition assays for use in screening potential antibacterial compounds. Infection by antibiotic-resistant pathogens in on the rise globally and several enzymes, including the those in the methylerythritol phosphate (MEP) pathway and fructose bisphosphate aldolase, as strong targets for novel pharmaceuticals because they are not present in humans. Several assays exist for the MEP pathway and aldolase, but there is always work to be done to improve sensitivity, increase throughput, and lower cost. This dissertation describes the development of several methods – hydrophilic interaction chromatography (HILIC), liquid chromatography-mass spectrometry (LC-MS), and …

Resonant Extraction For Mu2e, Prudhvi Raj Varma Chintalapati

Graduate Research Theses & Dissertations

Charged Lepton Flavor Violations (CLFVs) are probed in an attempt to search Beyond Standard Model (BSM) Physics. The sensitive channel available for experiments around the world is to probe through muons. No conclusive evidence of CLFV is found so far but $\mutoe$ experiment at Fermi National Accelerator Laboratory (Fermilab) aims to improve the current experimental sensitivity by searching for $\mu^{-}N \longrightarrow e^{-}N$ transition. To provide the high intensity beam that can be handled to achieve desired sensitivity, slow spill using resonant extraction is used at the accelerator complex.

Understanding the motivations behind the experiment and simulating the crucial stage in …

Conservation Agriculture In The Heartland: Farmer Perceptions Of Soil Health And The Adoption Of Cover Crops, Lillian Clarissa Cobo

Graduate Research Theses & Dissertations

The benefits of cover crops are widely recognized by those interested in conservation agriculture and soil health. These benefits include soil erosion control, nutrient loss reduction, and overall improvement of soil health. However, while these benefits are well-documented, the adoption rate of cover crops in the American Heartland remains astoundingly low. While some studies have attempted to determine the reasons for this low adoption rate, the information relating to how farmer perceptions of soil health impact cover crop adoption is almost nonexistent. Furthermore, there is a clear absence of mixed method studies in the literature relating to this subject. This …

Maximum Likelihood Estimation For A Heavy-Tailed Mixture Distribution, Philippe Kponbogan Dovoedo

Graduate Research Theses & Dissertations

In an increasingly connected global environment, “high-impact, low-probability" (HILP)

events can have devastating consequences and result in large insurance losses with a heavy-

tailed distribution. Examples of such events include Hurricane Katrina, the Deepwater

Horizon oil disaster and the Japanese nuclear crisis and tsunami. According to the 2012

Blackett Review of HILP Risks from the UK Government Office for Science, the

identification of low-probability risks, and the subsequent development of mitigation plans,

is complicated by their rare or conjectural nature, and their potential for causing impacts

beyond everyday experience. Extremal mixture models and more generally extreme value

analysis help assess …

Studying The Effect Of Vacancies On The Thermal Conductivity Of Metal-Coated Carbon Nanotubes Using Molecular Dynamics Atomistic Simulations, Ravindra Sunil Dhumal

Graduate Research Theses & Dissertations

Breakthroughs in nanotechnology have made it possible for the size of electronic gadgets to be scaled down to micro/nano level. What follows however, is the side effect of high power densities and overheating as the heat dissipation is restricted to very small surface area. Thus, the need of an effective thermal management system is central to these developments. One way to counter this problem is to use Thermal Interface Materials (TIMs) which promote heat transfer between heat source and sink.

Owing to their high thermal conductivity (up to 6000 W/mK), Carbon Nanotubes (CNTs) are thought of as strong candidates for …

Study Of Higgs Production From H -> Zz -> 4l Channel Using Machine Learning Methods, Daniel Arthur Faia Jr.

Graduate Research Theses & Dissertations

In this thesis I will show how machine learning methods can improve on physics analysis in the H -> ZZ -> 4l channel. In particular we will explore how these methods can be used to classify Vector Boson Fusion (VBF) processes in the presence of more dominant Higgs production processes. The aim is to improve the ability to discriminate VBF Higgs boson production relative to other Higgs boson production modes. Since VBF has two quark jets in the final state, it is useful to discriminate between quark and gluon jets. We compare the effectiveness of quark gluon discrimination with machine …

Two-Dimensional Bloch Electrons In Electric And Magnetic Fields, Edward Aris Diaz Fajardo

Graduate Research Theses & Dissertations

Due to their extraordinary mechanical, and fascinating electronic properties, atomically flat two-dimensional materials are attractive avenues in the search for new and interesting physical phenomena. Symmetry is a powerful tool in studying the dynamics of Bloch electrons in these crystalline solids. Here, using a tight binding description, a systematic scheme is developed to derive the symmetry labels, called irreducible representations (IRs), characterizing the Bloch eigenstates in a crystal, including an extensive discussion on the possibility that these IRs are not always unique. This theory is illustrated using monolayer MoS$_2$ and few-layer graphene as examples. Using this symmetry analysis in conjunction …

Steady Flows In Annular Wedge Lid-Driven Cavities, Anandan Ganapathy

Graduate Research Theses & Dissertations

The lid-driven cavity is a well-known canonical problem in the field of analytical and computational fluid dynamics. It is comprised of a square domain of an incompressible fluid with its upper lid has a specified velocity and the remaining wall boundaries are subjected to fixed, no-slip, zero-velocity constraints. There are numerous examples found in the literature that address the well-known, stable behavior of this system, which includes a primary recirculating vortex, secondary corner vortices, and a velocity profile through the center midpoint y-axis that is shown to be dependent on the Reynolds number. In this investigation, the shape of the …

Talented High School Students' Perceptions On How Their Parents Influence Their Achievement, Michael Fitzgerald

Graduate Research Theses & Dissertations

Talented students are an underserved population in American schools today. Despite being identified as talented in a certain domain, many of these students are not developing their potential into outcomes of advanced achievement and skill. Research shows that parents play a critical role in developing their children’s talent. To change the cycle of underachievement, we need to start working with the talented students to get their perspective on what helps them. This is a qualitative case study of four talented high school students to discover their perspective on how their parents influence their achievement and motivation to learn. Multiple interviews …

Textile Dyes As A Source Of Groundwater Contamination In Mandalay, Myanmar, Surya Freeman

Graduate Research Theses & Dissertations

Textile dyeing and weaving of traditional longyi garments has traditionally occurred in the Amarapura Township of Mandalay, Myanmar, since 1822, transitioning from natural to chemical dyes in the early 1900’s. With no current wastewater treatment facilities in Mandalay, dye effluents mix with other wastewaters in unlined canals dug near peoples’ homes and discharge into local canals and groundwater. As locals rely heavily on dug and tube wells for drinking, bathing, and cooking, this industry poses a major health hazard to the people in this region. The objective of this study is to identify the previously unknown composition of the textile …

A Study Of Progression In Science Process Skills During A Midwestern Public Research University’S Stem Summer Camps, Anila Fiaz Gill

Graduate Research Theses & Dissertations

This study explored the impact of STEM summer camps (held at a Midwestern university) on campers’ science process skills (SPS). Upon analysis statistically significant positive growth in SPS was observed, evidenced by the increase from presurvey to postsurvey SPS scores, over the period of these short duration camps. There were no statistically significant differences in growth (presurvey to postsurvey) by gender, grade level, or ethnicity. While there were no significant main effects for gender (male vs. female) and grade level (middle vs. high school) on science process skill scores, there was a significant main effect of ethnicity (white vs. nonwhite) …

Treated Like A Professional: A Case Study In Adjunct Faculty Socialization, Elizabeth C. Hobson

Graduate Research Theses & Dissertations

This study explored the experiences of part-time adjunct faculty members in a community college setting. It specifically looked at how adjuncts described: (1) their career journey to being adult educators, (2) their socialization experience, and (3) how teaching adult education influenced their perspective on teaching. All participants were experienced adjunct instructors in an adult basic and secondary education department (ABE/ASE) at a suburban community college. By looking at experienced adjunct instructors, the study informs practices to support both experienced and new part-time college faculty members.

A qualitative case study approach was used to explore the participants’ experiences. Ten adjunct faculty …