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2017

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Structural Change And Productivity Growth In Developing Countries, Ahmed Salim Nuhu Jan 2017

Structural Change And Productivity Growth In Developing Countries, Ahmed Salim Nuhu

Masters Theses

The dual-economy model predicts that holding productivity constant, labor reallocation from less to more productive sectors, also known as 'structural change' results in improvement in economy-wide productivity. The objective of this thesis is to test the empirical predictions of this model using sectoral-level data from twenty-eight developing countries. Using the shift-share growth decomposition approach, we find regional growth-enhancing effects of structural change in Asia, Latin America and North Africa from, 1980 to 2000 and growth-reducing effects in Sub-Saharan Africa over the same period. However, as intersectoral productivity gaps disappeared after 2000, technological progress led the growth process in much of …

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Resilience And Thriving In Homeless College Students, Cayla C. Maurer Jan 2017

Resilience And Thriving In Homeless College Students, Cayla C. Maurer

Masters Theses

Homeless college students face many obstacles in higher education. These students are the invisible population on campuses that are sometimes forgotten. Despite facing many challenges and barriers, these students continue to pursue a degree of higher education. The purpose of this study was to understand the experiences and obstacles homeless college students face while they word toward a degree. Understanding how successful homeless college students overcome barriers and utilize resources will provide information that may change the fate of future homeless college students. A phenomenological approach was utilized to explore the qualities and characterizes that allow homeless college students to …

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Bodipy-Based Red Sensitizers For Near-Infrared Emission Of Lanthanide Complexes, Priyangika Prasadini Senevirathne Jan 2017

Bodipy-Based Red Sensitizers For Near-Infrared Emission Of Lanthanide Complexes, Priyangika Prasadini Senevirathne

Masters Theses

During the past 20 years there has been a remarkable growth in the use of the fluorescence technique in biological studies. Fluorescence and time-resolved fluorescence spectroscopy are considered primary research tools in the field of biochemistry. Currently, fluorescence spectroscopy is a dominant methodology and used widely in biotechnology and medical diagnosis process. One impediment in using fluorescent probes is the fluorescence of biological substrates and fluorescence of diagnostic probes are significantly overlapped, and it decreases the detection sensitivity. Also, commercially available probes require UV or near-UV light excitation, causing severe degradation of biological substrates. Near-infrared emitting lanthanide complexes can overcome …

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The North American River Otter (Lontra Canadensis) On The Department Of Energy's Savannah River Site, Emily B. Mccallen Jan 2017

The North American River Otter (Lontra Canadensis) On The Department Of Energy's Savannah River Site, Emily B. Mccallen

Masters Theses

The Department of Energy's (DOE) Savannah River Site (SRS) faces a legacy of radionuclide and metal contamination from industrial processes that occurred within the site. The risks posed to ecosystems on the site from contaminants are quantified using the ecological risk assessment process, which often uses the health of a particular species as an ecological endpoint. Northern river otters (Lontra canadensis) are appropriate receptors for studying the effects of long-term, low-level contamination because they are long-lived, higher trophic level organisms likely to accumulate high levels of pollutants. However, little information about river otters on the SRS is known; …

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Molecular Recognition Profiles Of Molecular Cocrystals, Ian C. Tinsley Jan 2017

Molecular Recognition Profiles Of Molecular Cocrystals, Ian C. Tinsley

Masters Theses

The manner in which molecules recognize each other holds critical importance to nearly every area of science. This significance stems from the key underpinning of molecular assembly to our most basic understanding of chemical processes. Whether these interactions relate to small-molecule catalytic transformations or complex physiological processes, the structural features responsible for molecular association play into the well-known adage that form follows function where material property arises from the collective structural features of the molecular components. Because the form of chemical systems is derived from a complex blend of covalent and non-bonded contacts, codifying each contributor has become essential for …

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Time-Resolved Phosphorescence Spectroscopy At Cryogenic Temperatures For The Environmental Analysis Of Polycyclic Aromatic Sulfur Heterocycles In Oil Contaminated Sites., Maha Al-Tameemi Jan 2017

Time-Resolved Phosphorescence Spectroscopy At Cryogenic Temperatures For The Environmental Analysis Of Polycyclic Aromatic Sulfur Heterocycles In Oil Contaminated Sites., Maha Al-Tameemi

Electronic Theses and Dissertations

The large volume of crude oil released into the Gulf of Mexico by the Deepwater Horizon (DWH) accident has raised considerable concerns over potential ecosystem impacts. The dispersion of harmful oil components into the ocean waters could pose long term risks to flora and fauna. Due to the complexity of oil contaminated sites, the unambiguous identification and quantitation of environmental pollutants often requires the sequence of high-performance liquid chromatography (HPLC) and gas chromatography-mass spectrometry (GC-MS). A classic example is the analysis of the sixteen polycyclic aromatic hydrocarbons included in the priority pollutants list of the U.S. Environmental Protection Agency (EPA-PAHs). …

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Thermal And Waveguide Optimization Of Broad Area Quantum Cascade Laser Performance, Matthew Suttinger Jan 2017

Thermal And Waveguide Optimization Of Broad Area Quantum Cascade Laser Performance, Matthew Suttinger

Electronic Theses and Dissertations

Quantum Cascade Lasers are a novel source of coherent infrared light, unique in their tunability over the mid-infrared and terahertz range of frequencies. Advances in bandgap engineering and semiconductor processing techniques in recent years have led to the development of highly efficient quantum cascade lasers capable of room temperature operation. Recent work has demonstrated power scaling with broad area quantum cascade lasers by increasing active region width beyond the standard ~10 ?m. Taking into account thermal effects caused by driving a device with electrical power, an experimentally fitted model is developed to predict the optical power output in both pulsed …

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Predicting Undergraduate Retention In Stem Majors Based On Demographics, Math Ability, And Career Development Factors, Christopher Belser Jan 2017

Predicting Undergraduate Retention In Stem Majors Based On Demographics, Math Ability, And Career Development Factors, Christopher Belser

Electronic Theses and Dissertations

Science, technology, engineering, and math (STEM) fields are currently facing a crisis with respect to filling jobs with qualified workers (NSF, 2013; NAS, 2011). While advancements in these industries have translated into job growth, post-secondary declaration and retention rates within STEM majors lag behind industry needs (Carnevale et al., 2011; Chen, 2013; Koenig et al., 2012). Although researchers previously investigated demographic variables and math-related variables in the context of STEM retention (Beasley & Fischer, 2012; CollegeBoard, 2012; Cundiff et al., 2013; Gayles & Ampaw, 2014; Le et al., 2014; Nosek & Smyth, 2011; Riegle-Crumb & King, 2010), the need exists …

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An Investigation Of State College To University Transfer Students' Sense Of Belonging, Claire Brady Jan 2017

An Investigation Of State College To University Transfer Students' Sense Of Belonging, Claire Brady

Electronic Theses and Dissertations

The purpose of this mixed methods study was to examine the sense of belonging of state college transfer students who enroll at a large research-intensive university through structured and unstructured transfer pathways using the Sense of Belonging Instrument (SBI; Hoffman, Richmond, Morrow, & Solomon, 2002). The SBI includes five subscales (Peer Support, Faculty Support, Classroom Comfort, Isolation, and Empathetic Faculty Understanding). To date, no systematic investigation has considered the construct of belonging with this population or transfer pathway. The findings from this study (n = 54) found a positive statistically significant correlation between Peer Support and Isolation (r(52) =.801, p …

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Examining The Experiences Of Latino/A Parents Of First-Generation College Students Pursuing A Doctoral Degree, Natalia Toro Jan 2017

Examining The Experiences Of Latino/A Parents Of First-Generation College Students Pursuing A Doctoral Degree, Natalia Toro

Electronic Theses and Dissertations

Research points to Latino/a parents as an important source of motivation and support for high achieving Latino/a students who are the first in their families to go to college (Arellano & Padilla, 2006; Gandara, 1982; 1994; Hurtado & Sinha, 2006; Zalaquett, 2005); however, very little is known about their experience as they parent children whose educational paths are so different from their own. Cultural values such as collectivism and familism play a unique role in the level of connection between these parents and their children (Suarez-Orozco & Suarez-Orozco, 1995), creating dynamics that merit exploration. This dissertation qualitatively examines how seven …

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Coloring Graphs With Forbidden Minors, Martin Rolek Jan 2017

Coloring Graphs With Forbidden Minors, Martin Rolek

Electronic Theses and Dissertations

A graph H is a minor of a graph G if H can be obtained from a subgraph of G by contracting edges. My research is motivated by the famous Hadwiger's Conjecture from 1943 which states that every graph with no Kt-minor is (t − 1)-colorable. This conjecture has been proved true for t ≤ 6, but remains open for all t ≥ 7. For t = 7, it is not even yet known if a graph with no K7-minor is 7-colorable. We begin by showing that every graph with no Kt-minor is (2t − 6)- colorable for t = …

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Charge And Spin Transport In Low-Dimensional Materials, Amin Ahmadi Jan 2017

Charge And Spin Transport In Low-Dimensional Materials, Amin Ahmadi

Electronic Theses and Dissertations

My research has been focused on two main areas. First, electronic transports in chiral carbon nanotubes in the presence of charged adatoms. To study such systems we employed recursive Greens function technique to evaluate the conductance using the Landauer formula. Comparing with the experimental data, we determined the effective amplitude and the range of scattering potentials. In addition, using a similar approach we explained qualitatively an unusual conductance feature in a metallic carbon nanotube. The second part of my study was concerned to the dynamical spin injection and spin currents in low-dimensional materials. We have developed an atomistic model to …

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An Exploration Of The Feasibility Of Functional Near-Infrared Spectroscopy As A Neurofeedback Cueing System For The Mitigation Of The Vigilance Decrement, Gabriella Hancock Jan 2017

An Exploration Of The Feasibility Of Functional Near-Infrared Spectroscopy As A Neurofeedback Cueing System For The Mitigation Of The Vigilance Decrement, Gabriella Hancock

Electronic Theses and Dissertations

Vigilance is the capacity for observers to maintain attention over extended periods of time, and has most often been operationalized as the ability to detect rare and critical signals (Davies & Parasuraman, 1982; Parasuraman, 1979; Warm, 1984). Humans, however, have natural physical and cognitive limitations that preclude successful long-term vigilance performance and consequently, without some means of assistance, failures in operator vigilance are likely to occur. Such a decline in monitoring performance over time has been a robust finding in vigilance experiments for decades and has been called the vigilance decrement function (Davies & Parasuraman, 1982; Mackworth, 1948). One of …

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Impacts Of Workplace Violence: The Role Of Inequality, Lindsey Singer Jan 2017

Impacts Of Workplace Violence: The Role Of Inequality, Lindsey Singer

Electronic Theses and Dissertations

In 2011 the National Crime Victimization Survey (NCVS) reported that of people who are employed and aged 16 and older, 24% of nonfatal violent incidents happened at work. To understand the magnitude of the problem, from 2005 to 2009, 572,000 nonfatal workplace crimes occurred against people aged 16 or older. Annually, the rate of workplace violence was about 5 victimizations per 1,000 employed persons aged 16 and older (Harrell 2011). The impact of crime on victims is a topic that deserves attention because it extends our understanding beyond descriptive rates of violence. Workplace victimization, like most other types of victimizations …

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Cross-Continental Insights Into Jaguar (Panthera Onca) Ecology And Conservation, Joe Figel Jan 2017

Cross-Continental Insights Into Jaguar (Panthera Onca) Ecology And Conservation, Joe Figel

Electronic Theses and Dissertations

The jaguar (Panthera onca) is a widely distributed large carnivore and the focal species of a range-wide connectivity initiative known as the jaguar conservation network (JCN). Comprised of ~83 Jaguar Conservation Units (JCUs) and ~75 corridors from northern Mexico to Argentina, the JCN functions as a conduit for jaguar movement and gene flow. Key linkages in the network are imperiled by human population growth, large-scale agriculture, highway expansion, and other infrastructural development. Labeled "corridors of concern," these vulnerable linkages are imperative to the maintenance of connectivity and genetic diversity throughout jaguar distribution. I take a multi-faceted approach to analyze conservation …

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Applied Problem Solving In Children With Adhd: The Mediating Roles Of Working Memory And Mathematical Calculation, Lauren Friedman Jan 2017

Applied Problem Solving In Children With Adhd: The Mediating Roles Of Working Memory And Mathematical Calculation, Lauren Friedman

Electronic Theses and Dissertations

The difficulties children with ADHD experience solving applied math problems (i.e., word problems) are well documented; however, the independent and/or interactive contribution of cognitive processes underlying these difficulties is not fully understood and warrant scrutiny. The current study examines two primary cognitive processes integral to children's ability to solve applied math problems: working memory (WM) and math calculation ability (i.e., the ability to utilize specific facts, skills, or processes related to basic math operations stored in long-term memory). Thirty-six boys with ADHD-combined presentation and 33 typically developing (TD) boys aged 8-12 years old were administered multiple counterbalanced tasks to assess …

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System For Metal Coated Fiber Fabrication, Da Zhang Jan 2017

System For Metal Coated Fiber Fabrication, Da Zhang

Electronic Theses and Dissertations

For many specific applications, such as sensors, aerospace, chemical industry, deep-well oil-field industry, metal-coated fiber shows strong abilities to satisfy people's requirement. With in-line coating technology, we are able to coat Aluminum on the fibers. Using electromagnetic induction, we can easily heat an electrically conducting thing such as a metal with the eddy current. This process is defined as Induction heating. And we will melt the Aluminum by this induction heating during drawing the fibers on the tower. Introduce the fiber tower system. The drawing process of in-line technology is formed of the following steps: Position, Melting, Forming into fibers, …

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Picosecond Yb-Doped Fiber Amplifier, Weibin Zhu Jan 2017

Picosecond Yb-Doped Fiber Amplifier, Weibin Zhu

Electronic Theses and Dissertations

Due to its versatility, rare earth doped fiber amplifier (RDFA) has attracted a lot of researchers worldwide in recent years. Depends on different kinds of rare earth ion, RDFA can be categorized into neodymium doped fiber amplifier (NDFA), erbium doped fiber amplifier (EDFA), thulium doped fiber amplifier (TDFA), and so forth. Among many kinds of RDFA, the ytterbium doped fiber amplifier (YDFA) has received even more interest, especially in high power application, mainly because of its broad gain bandwidth and high conversion efficiency which are due to its relatively simple electronic structure. The purpose of this research is to study …

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A Study Of The Relationship Between The Quality Of District Supervisor Narrative Feedback To School Principals As It Relates To Student Achievement, Fiscal Management, School Climate, And Teacher Effectiveness, Karena Chunoo Jan 2017

A Study Of The Relationship Between The Quality Of District Supervisor Narrative Feedback To School Principals As It Relates To Student Achievement, Fiscal Management, School Climate, And Teacher Effectiveness, Karena Chunoo

Electronic Theses and Dissertations

The purpose of this study was to investigate the quality of narrative feedback from district supervisors given to school principals. In addition, building on the research of effective feedback, another purpose of this study was to determine the relationship between supervisor narrative feedback to school principals and four pillars of principal responsibility: student achievement, school climate, fiscal responsibility, and teacher performance. Narrative observation data from the School Leadership Evaluation - Florida Model were analyzed from a large urban school district to determine the level, (i.e., quality) of narrative feedback provided to school principals. Additional data were collected on the four …

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A Study Of The Relationship Between Continuous Professional Learning Community Implementation And Student Achievement In A Large Urban School District, Erica Sutula Jan 2017

A Study Of The Relationship Between Continuous Professional Learning Community Implementation And Student Achievement In A Large Urban School District, Erica Sutula

Electronic Theses and Dissertations

The purpose of this causal comparative study was to understand the differences in comparative data across a large urban school district and to examine the continued effects of the PLC model on teacher and leader perception of the model and student achievement as measured by the 2012 and 2014 FCAT 2.0 Reading and Mathematics. The population for this study included all instructional and leadership personnel in schools within the target school district, with a final convenience sample across the two school years of N=5,954. The research questions for this study focused on (a) the change in teacher's perception of teachers …

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The Impact Of Ongoing Science Professional Development On Standardized Assessments Of Student Achievement, Leah Torres Jan 2017

The Impact Of Ongoing Science Professional Development On Standardized Assessments Of Student Achievement, Leah Torres

Electronic Theses and Dissertations

The purpose of this study was to identify how ongoing science professional development impact students' achievement on standardized assessments. The students' end-of-year assessment and State Science Assessment data were collected from a Central Florida school district. The student data were divided into categories based on teachers' participation in on-going professional development opportunities. The teachers were categorized by the number of types of professional development opportunities they attended. The mean assessment scores of students whose all teachers did or did not participate were calculated, and t-tests were run to find the significance between the means. There was no significance in the …

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A Study Of Internet Spending And Graduation Rates: A Correlational Study, Diana Violette Jan 2017

A Study Of Internet Spending And Graduation Rates: A Correlational Study, Diana Violette

Electronic Theses and Dissertations

The purpose of this study was to examine the relationship between school district spending on Internet access and student achievement, defined by graduation rates, in the state of Florida. Internet funding received for Internet access from E-rate funding administered by the Universal Service Administration Company (USAC) and graduation rates of the 67 school districts in the state of Florida were compared. Further, the data were adjusted for socio-economic status (SES) to determine the relationship between school districts' SES and spending on Internet access. Lastly, school district connectivity and bandwidth were examined to determine whether the ConnectED initiative requirements were related …

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Exploring The Experiences Contributing To The Success Of High-Achieving Black Female Undergraduate Students At A Predominantly White Institution, Whitney Watkins Jan 2017

Exploring The Experiences Contributing To The Success Of High-Achieving Black Female Undergraduate Students At A Predominantly White Institution, Whitney Watkins

Electronic Theses and Dissertations

Much of the literature regarding Black students at predominantly White institutions (PWI) focuses on these students' academic difficulty, while there is far less attention paid to the performance of higher achieving Black students (Fries-Britt, 1998; Fries-Britt & Griffin, 2007). Therefore, this study explored the lived experiences of high-achieving Black female students, focusing particularly on the experiences which contribute to their success at a PWI. The qualitative phenomenological research design was used to highlight emergent themes revealed during the study. Eight purposely selected students participated in one-on-one semi structured interviews and a Sister Circle group process. The participants' stories were highlighted …

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An Examination Of Inclusive Practices For Junior Secondary Students With Learning Disabilities In Gaborone, Botswana, Samantha Mrstik Jan 2017

An Examination Of Inclusive Practices For Junior Secondary Students With Learning Disabilities In Gaborone, Botswana, Samantha Mrstik

Electronic Theses and Dissertations

The country of Botswana has passed laws to support the human rights of their citizens. In accordance with the UN's guidelines, Botswana's human rights initiatives, and the international movement towards inclusive education, inclusive educational reform is taking place. In this ethnographic study, the researcher has examined the inclusive practices currently in place to support junior secondary students with learning disabilities (LD) in Gaborone, Botswana over a four-month period. Participants included administrators, general and special education teachers, and students with LD. The themes of routine, academic activities, classroom life, and accommodations for students with LD emerged upon analysis and are discussed …

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Role Ambiguity: Defining The Elusive Role Of The Special Education Teacher Who Works In Inclusive Settings, Dena Slanda Jan 2017

Role Ambiguity: Defining The Elusive Role Of The Special Education Teacher Who Works In Inclusive Settings, Dena Slanda

Electronic Theses and Dissertations

This phenomenological study examined the lived experiences of special education teachers who worked in inclusive settings. Given the increasing number of students with disabilities receiving special education services in the general education classroom (U.S. Department of Education, 2016), there is a critical need to understand the dynamic role of a special education teacher who works in inclusive settings. Federal mandates have required special education teachers working in inclusive settings to rethink their roles (McLeskey, Landers, Hoppey, & Williamson, 2011) and restructure their approach to providing specially-designed services. Further, these roles are dependent on those who interpret and implement policy and …

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Quantification Of Non-Stoichiometry And Impurities In Transparent Yag Ceramics By Laser-Induced Breakdown Spectroscopy (Libs), Sudeep Pandey Jan 2017

Quantification Of Non-Stoichiometry And Impurities In Transparent Yag Ceramics By Laser-Induced Breakdown Spectroscopy (Libs), Sudeep Pandey

Electronic Theses and Dissertations

Transparent ceramics are an important class of optical materials with applications in street-lighting, high-strength windows, electro- and magneto-optical isolators, high-power laser gain media and nuclear radiation detectors. Compared to single-crystal growth, ceramic processing enables size scalability, near net-shape forming and prevents issues associated with dopant segregation and inhomogeneity, such as stress-induced birefringence and wavefront distortions. The fabrication of high optical grade ceramics by route of powder sintering, relies on a controlled set of techniques preventing the formation of scattering centers (pores and secondary phases) and harmful point defects (color centers, charge-carrier trapping sites). This thesis work investigates a novel approach …

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Predictive Modeling Of Functional Materials For Catalytic And Sensor Applications, Takat Rawal Jan 2017

Predictive Modeling Of Functional Materials For Catalytic And Sensor Applications, Takat Rawal

Electronic Theses and Dissertations

The research conducted in my dissertation focuses on theoretical and computational studies of the electronic and geometrical structures, and the catalytic and optical properties of functional materials in the form of nano-structures, extended surfaces, two-dimensional systems and hybrid structures. The fundamental aspect of my research is to predict nanomaterial properties through ab-initio calculations using methods such as quantum mechanical density functional theory (DFT) and kinetic Monte Carlo simulation, which help rationalize experimental observations, and ultimately lead to the rational design of materials for the electronic and energy-related applications. Focusing on the popular single-layer MoS2, I first show how its hybrid …

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Improving Instructional Strategies In Higher Education For Students With A Learning Disability In A General Education Science Course, Brian Ogle Jan 2017

Improving Instructional Strategies In Higher Education For Students With A Learning Disability In A General Education Science Course, Brian Ogle

Electronic Theses and Dissertations

This Dissertation in Practice employed a mixed-methods design to identify preferred instructional methods in a college level science course as well as the self-reported challenges to learning science in college by students with a learning disability. In addition, the relationships between preferred instructional strategies and learner characteristics such as declared major, and learning disability were examined. Qualitative and quantitative data was collected from a sample of 48 participants using an electronic survey. Additionally, eight participants participated in focus groups to collect in-depth qualitative data. All participants are current students enrolled full-time at Beacon College. Each participant completed a science college …

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The Contribution Of Educators' Levels Of Inspiration And Compassion For Others To Their Degree Of Burnout, Samuel Bierbrauer Jan 2017

The Contribution Of Educators' Levels Of Inspiration And Compassion For Others To Their Degree Of Burnout, Samuel Bierbrauer

Electronic Theses and Dissertations

This study investigated the directional relationship between educators' levels of inspiration and compassion for others to their degree of burnout. Specifically, the investigation tested the hypothesized directional relationship that educators' who report higher levels of inspiration (as measured by the Educator Inspire Scale, EIS; Lambie, Barden, & Bierbrauer, 2016) and compassion for others (as measured by the Compassion for Others Scale; COS; Pommier, 2010) would score at lower levels of burnout (as measured by the three components of burnout [emotional exhaustion, depersonalization, personal accomplishment] on the Maslach Burnout Inventory – Educator Survey; MBI-ES; Maslach, et al., 1996). In addition, the …

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Analysis Of The Effects Of Formative Assessment In Promoting Transfer Of Learning In An Undergraduate General Microbiology Laboratory Course, Andrea Rediske Jan 2017

Analysis Of The Effects Of Formative Assessment In Promoting Transfer Of Learning In An Undergraduate General Microbiology Laboratory Course, Andrea Rediske

Electronic Theses and Dissertations

The undergraduate microbiology lab serves an important role in establishing a foundation of best practices in aseptic technique and infection control for pre-medical, pre-nursing, pre-pharmacy, or pre-allied health students. The high incidence of hospital-acquired infections (HAIs) in the US and evidence in the literature of less effective implementation of proper aseptic technique among apprentice doctors and nursing students suggests that more effective transfer of learning could improve implementation of these procedures in the clinical setting. The research described in this study aimed to assess learning transfer as it applied to aseptic techniques and infection control skills learned in the undergraduate …

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