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Articles 1 - 30 of 125
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The Relationship Between Instructional Delivery And Student Engagement In Selected Classrooms: A Cross-Case Analysis, Yesenia M. Aponte
The Relationship Between Instructional Delivery And Student Engagement In Selected Classrooms: A Cross-Case Analysis, Yesenia M. Aponte
Dissertations, Theses, and Masters Projects
Student engagement is an essential component to student learning. Miami-Dade County Public Schools (MDCPS) has focused on providing schools with a unified approach to delivering quality classroom instruction. Despite the alignment and commonalities present, underlying issues still need further investigation. Discrepancies within student proficiency and learning gains exist across schools throughout the district. The purpose of the study was to investigate what patterns exist among fourth- and fifth-grade teachers across four schools within the district concerning the use of instructional practices and how these practices relate to levels of student engagement. This study investigated the relationship between student engagement, instructional …
Mercury Exposure And Chronic Food Stress Elevate Corticosterone In Blood But Not Feathers, Casey Lee Mclaughlin
Mercury Exposure And Chronic Food Stress Elevate Corticosterone In Blood But Not Feathers, Casey Lee Mclaughlin
Dissertations, Theses, and Masters Projects
Bird abundance in North America has declined by almost 30% in just the past 50 years. It is crucial that we understand the many factors contributing to declines, including the impacts of environmental contaminants. Mercury is a persistent and global neurotoxic contaminant of aquatic systems that will continue to increase in the environment as anthropogenic activities and climate change accelerate its emission. The impact of mercury on songbirds, a large and diverse but declining taxon, is not well understood. I sought to better understand the effects of mercury exposure on songbirds by studying its impact on the environmentally sensitive hypothalamic-pituitary-adrenal …
Mental Health Professsionals: Attitudes Toward Sex Offenders And Moral Development, Benjamin Sean Newman
Mental Health Professsionals: Attitudes Toward Sex Offenders And Moral Development, Benjamin Sean Newman
Dissertations, Theses, and Masters Projects
Mental health professionals who provide treatment to sex offenders navigate the complex legal, ethics and moral intersections surrounding the population within the professional-personal dialectic. The purpose of this research study was to explore the potential relationship between mental health professional's attitudes toward sex offenders and their level of moral development in order to encourage increasingly effective training and experiential interventions which then may impact treatment outcomes. Research participants included licensed and non-licensed counselors, social workers and psychologists (n = 135). Along with a demographic questionnaire and the Marlowe- Crowne Social Desirability Scale, the Defining Issues Test was used as a …
Effects Of Acidification And Salinity On Callinectes Sapidus, Mercenaria Mercenaria, And Their Interactions, Katherine Sara Longmire
Effects Of Acidification And Salinity On Callinectes Sapidus, Mercenaria Mercenaria, And Their Interactions, Katherine Sara Longmire
Dissertations, Theses, and Masters Projects
Ocean acidification (OA) coupled with other stressors, will be detrimental at the species and ecosystem levels. Decreased carbonate ion concentrations negatively impact calcifying species, yet the combined effects of OA and other stressors are less well known, and many studies disregard species interactions. Multi-species studies involving OA and other stressors are crucial to comprehend the full threat of OA. Understanding how OA interacts with other stressors to affect species responses is necessary for future management of exploited species in an altered ecosystem. The objectives of my study were to assess: 1) the effects of long-term exposure to decreased pH and …
The Impact Of High School Science, Technology, Engineering, And Mathematics (Stem) Magnet Programs On The Academic Performance Of Students, Melanie Eileen Megias
The Impact Of High School Science, Technology, Engineering, And Mathematics (Stem) Magnet Programs On The Academic Performance Of Students, Melanie Eileen Megias
Dissertations, Theses, and Masters Projects
Concern about the impact of science, technology, engineering, and mathematics (STEM) programs on society are not new. STEM employment in the United States has grown twice as fast as other fields during the last decade. School districts have been encouraged to consider STEM-focused schools to meet this demand and have responded by offering STEM magnet program options. This mixed-methods study used Lewin’s Theory of Change and Fullan’s ideas on Coherence as the theoretical frameworks to examine how students who participate in a high school STEM magnet program perform academically. Academic performance was measured using grade point average (GPA) and graduation …
Virginia House Painters 1750-1840/Shad, Herring, And Slavery In The Chesapeake Bay And Albemarle Sound, Jenna Hershberger
Virginia House Painters 1750-1840/Shad, Herring, And Slavery In The Chesapeake Bay And Albemarle Sound, Jenna Hershberger
Dissertations, Theses, and Masters Projects
“Painting, Gilding, Glazing, etc.” This paper uses newspaper advertisements to describe house painters who worked in Virginia between 1760 and 1840. Virginia house painters were a varied group, many from England or of British descent, who began their trade in America as journeymen and masters, convict servants, indentured servants, or apprentices. Among them, enslaved blacks and Indians also practiced the trade. At a basic level, house painters were men with the knowledge to make paint and execute elaborate decorative finishes. From that commonality, however, the skills and services painters offered diverged, especially when they competed with one another and consequently …
Understanding The Lived Experiences, Self Efficacy, And Engagement Of A Group Of Legacy Students At A More Selective University, Grace Hindman Fend
Understanding The Lived Experiences, Self Efficacy, And Engagement Of A Group Of Legacy Students At A More Selective University, Grace Hindman Fend
Dissertations, Theses, and Masters Projects
The purpose of this study was to gain a better understanding of the perceptions of a group of legacy students regarding their experiences at a public, more selective institution. Selective institutions have a long history of providing preferential admission review of legacy students. Legacy students are often admitted to selective institutions with lower standardized test scores and lower high school academic achievement than their peers. However, little research exists on how legacy students experience college, in particular their levels of self-efficacy and engagement. My study employed a phenomenological research approach, using a theoretical framework of Bean and Eaton’s (2002) psychological …
Reducing Avian Collisions With Human-Made Structures: A Sensory Ecology Approach To Open-Air Settings, Timothy James Boycott
Reducing Avian Collisions With Human-Made Structures: A Sensory Ecology Approach To Open-Air Settings, Timothy James Boycott
Dissertations, Theses, and Masters Projects
Billions of birds fatally collide with human-made structures each year. These mortalities have impacts on species of conservation concern and potentially on avian populations as a whole. This source of human-wildlife conflict also places economic and operational constraints on various human industries. Furthermore, with continued increases in urbanization, the rate and extent of collisions continues to increase. Efforts to reduce collisions have largely centered on making structures more visible to birds but have been met with limited success. Currently, there is a call for solutions to be tailored to both the environmental context of hazardous structures and to the sensory …
Studies On The Anatomy Of Teleosts, Katherine Elliott Bemis
Studies On The Anatomy Of Teleosts, Katherine Elliott Bemis
Dissertations, Theses, and Masters Projects
The Longnose Lancetfish, Alepisaurus ferox, is a pelagic marine fish that has a heterodont dentition, including large fangs on both the upper and lower jaws. Their diet is well documented and includes salps, hyperiid amphipods, pelagic polychaete worms, mesopelagic fishes, and cephalopods. However, the function of the heterodont dentition, the structure of the teeth, and replacement mode is largely unknown. We studied a series of A. ferox to describe their dentition and tooth replacement. All teeth are replaced extraosseously. Palatine and dentary fangs develop horizontally in the oral epithelium on the lingual surface of dentigerous bones. Developing fangs rotate into …
Impacts Of Fertilization On Salt Marsh Resilience: Altered By Location-Specific Drivers, Kenneth Michael Czapla
Impacts Of Fertilization On Salt Marsh Resilience: Altered By Location-Specific Drivers, Kenneth Michael Czapla
Dissertations, Theses, and Masters Projects
Salt marshes provide valuable ecosystem services to human society, but are currently under threat from accelerating sea level rise and nutrient enrichment. Carbon (C) and mineral accumulation allow salt marshes to maintain elevation above sea level and survive. Anthropogenic nitrogen (N) loading is increasing in many salt marshes, causing negative impacts on marsh resilience such as increased decomposition and decreased below-ground production. However, increasing N may also have simultaneous positive effects such as increased primary production and above-ground biomass, surface sediment accretion, and denitrification rates, which remove excess N from coastal waters. Many studies have been conducted to determine the …
Teacher Perceptions Of Professional Development Practices And Their Influence On Self-Efficacy: An Action Research Study, Jennifer Mcsweeney
Teacher Perceptions Of Professional Development Practices And Their Influence On Self-Efficacy: An Action Research Study, Jennifer Mcsweeney
Dissertations, Theses, and Masters Projects
Teachers play a critical role when it comes to impacting student achievement. As a result, quality of teachers is an issue that is being addressed through continuing professional development. Even with this emphasis, current professional development is perceived by teachers as being ineffective and lacking in relevance to student and teacher needs. However, research-based professional development practices do exist, and this study sought to explore which of these features teachers perceive to be effective within the learning experiences of lesson study, book study, and peer observations. Additionally, self-efficacy can affect teacher impact on student achievement. Four sources of efficacy contribute …
Pinpointing Software Inefficiencies With Profiling, Shasha Wen
Pinpointing Software Inefficiencies With Profiling, Shasha Wen
Dissertations, Theses, and Masters Projects
Complex codebases with several layers of abstractions have abundant inefficiencies that affect the performance. These inefficiencies arise due to various causes such as developers' inattention to performance, inappropriate choice of algorithms and inefficient code generation among others. To eliminate the redundancies, lots of work has been done during the compiling phase. However, not all redundancies can be easily detected or eliminated with compiler optimization passes due to aliasing, limited optimization scopes, and insensitivity to input and execution contexts act as severe deterrents to static program analysis. There are also profiling tools which can reveal how resources are used. However, they …
Spatial And Temporal Distribution Of Phycotoxins In Lower Chesapeake Bay: Method Development And Application, Michelle D. Onofrio
Spatial And Temporal Distribution Of Phycotoxins In Lower Chesapeake Bay: Method Development And Application, Michelle D. Onofrio
Dissertations, Theses, and Masters Projects
Harmful algae can illicit adverse effects on aquatic and human health through various mechanisms, including through the production of bioactive compounds called phycotoxins. In the Chesapeake Bay, the largest estuary in the United States, little information was known about the distribution of phycotoxins, even though this region is known to harbor 37+ different species of harmful algae. Due to the presence of multiple species that can produce distinct groups of phycotoxins, a multi-toxin approach was taken to study this region. Two methods for the quantification of 13 phycotoxins (microcystin-RR, -LR, YR, azaspiracid-1, -2, karlotoxin 3, goniodomin A, yessotoxin, brevetoxin-2, pectenotoxin-2, …
The Impacts Of Acute Hypoxic Exposure And Other Concomitant Stressors On The Cardiorespiratory Physiology Of Coastal Elasmobranch Fishes, Gail Danielle Schwieterman
The Impacts Of Acute Hypoxic Exposure And Other Concomitant Stressors On The Cardiorespiratory Physiology Of Coastal Elasmobranch Fishes, Gail Danielle Schwieterman
Dissertations, Theses, and Masters Projects
This dissertation examines physiological stress responses of coastal elasmobranch fishes and investigates mechanisms that maintain oxygen delivery under stress. Elasmobranch fishes are, in general, understudied despite their susceptibility (due to K-selected life histories) to unsustainably high fishing mortality and the effects of climate change. Knowledge of physiological stress responses is, therefore, necessary to understand species-specific resilience and overall susceptibility to stressors. In Chapter II, I describe the hypoxia tolerances of clearnose skate (Rostaraja eglanteria), thorny skate (Amblyraja radiata), and summer flounder (Paralichthys dentatus, a representative teleost species) under conditions of temperatures and acidification projected to occur by the end of …
Environmental Controls On Pteropod Ecology And Physiology Along The Western Antarctic Peninsula, Patricia Susan Thibodeau
Environmental Controls On Pteropod Ecology And Physiology Along The Western Antarctic Peninsula, Patricia Susan Thibodeau
Dissertations, Theses, and Masters Projects
Pteropods (pelagic snails) are ubiquitous zooplankton in the Southern Ocean and abundant along the Western Antarctic Peninsula (WAP), one of the most rapidly warming regions on the planet. They are important prey for higher trophic levels, grazers of phytoplankton, and contribute to particulate organic and inorganic carbon export. Pteropods are heralded as bioindicators of ecosystem health due to the vulnerability of their aragonitic shells under ocean acidification conditions, which could greatly affect their abundances in the future. Despite their importance within Antarctic food webs, few studies have analyzed the effects of climate change on pteropod physiology and biogeography in the …
Mother Of Dragons: White Feminist Imperialism In Hbo's Game Of Thrones, Abigail Kahler
Mother Of Dragons: White Feminist Imperialism In Hbo's Game Of Thrones, Abigail Kahler
Dissertations, Theses, and Masters Projects
In 2019, Game of Thrones aired its final episode, The Iron Throne. This episode enjoyed enormous viewership, and culminated in the death of Daenerys Targaryen, a fan favorite, whose storyline saw her conquer diverse cultures and declare rulership over the continents of Essos and Westeros. Her character is unique for being one of the most famous female protagonists in the fantasy genre, as well as a builder of empires. As evidenced by the hundreds of children named both ‘Khaleesi’ and ‘Daenerys’ after her, she was a hero to many. However, much of her storyline was occupied with the subjugation of …
Search For Selection: Genomic, Transcriptomic, And Phenotypic Investigations Of Spotted Seatrout (Cynoscion Nebulosus), Jingwei Song
Search For Selection: Genomic, Transcriptomic, And Phenotypic Investigations Of Spotted Seatrout (Cynoscion Nebulosus), Jingwei Song
Dissertations, Theses, and Masters Projects
Climate change has resulted in both increased mean water temperature and higher frequencies of extreme water temperatures in coastal areas. These new thermal regimes exert strong selective pressure on the thermal physiology of coastal aquatic species. Phenotypic plasticity (the ability of one genotype to display multiple phenotypes) and local adaptation (increased fitness to local environment due to natural selection) dictate both short-term (from hours to days to weeks) and long-term (from years to decades) resilience of a species. To better predict how a species will respond to the negative impacts of climate change, one first needs to know the current …
Wearable Technology For Healthcare And Athletic Performance, Amanda Annette Watson
Wearable Technology For Healthcare And Athletic Performance, Amanda Annette Watson
Dissertations, Theses, and Masters Projects
Wearable technology research has led to advancements in healthcare and athletic performance. Devices range from one size fits all fitness trackers to custom fitted devices with tailored algorithms. Because these devices are comfortable, discrete, and pervasive in everyday life, custom solutions can be created to fit an individual's specific needs. In this dissertation, we design wearable sensors, develop features and algorithms, and create intelligent feedback systems that promote the advancement of healthcare and athletic performance. First, we present Magneto: a body mounted electromagnet-based sensing system for joint motion analysis. Joint motion analysis facilitates research into injury prevention, rehabilitation, and activity …
The Role Of Suspended Sediment In Assessing Coastal Wetland Vulnerability, Daniel J. Coleman
The Role Of Suspended Sediment In Assessing Coastal Wetland Vulnerability, Daniel J. Coleman
Dissertations, Theses, and Masters Projects
Coastal wetlands sequester carbon, attenuate waves and storm surge, filter out nutrients and pollutants, and act as nursery habitat for important fisheries. The value of these ecosystems is underscored by their vulnerability to climate change, especially sea level rise. To persist under the threat of rising sea level, coastal wetlands must build elevation vertically. Delivery of sediment to the marsh during tidal flooding is a key component in the ecogeomorphic feedbacks that lead to elevation gain. Despite the importance of suspended sediment to assessing coastal wetland vulnerability, many questions remain unanswered. This dissertation addresses the impact of suspended sediment concentration …
Teacher Leadership: A District's Human Capital Investment Approach For Elevating Professional Learning, Tricia M. Fernandez
Teacher Leadership: A District's Human Capital Investment Approach For Elevating Professional Learning, Tricia M. Fernandez
Dissertations, Theses, and Masters Projects
Research shows that providing teacher leadership opportunities has a positive influence on the capacity building of teachers and is an effective strategy to retain effective teacher leaders. Current reform efforts include creating sustainable career pathways that provide teachers the opportunity to grow professionally while leading from the classroom. However, present trends depict low returns on investment from professional learning programs resulting in reduced funding. The purpose of this study was to determine if Miami-Dade County Public Schools (M-DCPS) human capital investment approach in the M-DCPS Teacher LEADership Academy (TLA) strengthens the capacity of teacher leaders to lead professional learning while …
Teacher Conceptualization And Implementation Of Differentiated Instruction In The Elementary Reading Classroom, Concepcion Cepero Santana
Teacher Conceptualization And Implementation Of Differentiated Instruction In The Elementary Reading Classroom, Concepcion Cepero Santana
Dissertations, Theses, and Masters Projects
Differentiated instruction (DI) is an approach to teaching that considers the individual needs of students based on readiness levels, interest, learning styles, and learning profiles. This pragmatic, exploratory, sequential mixed-methods study investigated the conceptualizations of teachers at high-performing elementary schools within Miami-Dade County Public Schools (M-DCPS) regarding DI, the degree of successful implementation, and the extent to which the degree of implementation correlates with student achievement in reading. Data were collected from 29 semi-structured teacher participant interviews, two 90-minute observations of each participant's reading instruction, and a comparison of i-Ready reading achievement data over two diagnostic assessments. The participants conceptualized …
Critical Consciousness Involving Worldview Inequities Among Undergraduate Students, Amanda Armstrong
Critical Consciousness Involving Worldview Inequities Among Undergraduate Students, Amanda Armstrong
Dissertations, Theses, and Masters Projects
College students’ worldviews and (non)religious beliefs continue to evolve and become more nuanced. Thus, it is crucial that college students make meaning of diverse worldview perspectives and recognize the accompanying inequitable experiences that others encounter because of their worldviews. In promoting research on critical consciousness in their 2018 call for proposals, the Association for the Study of Higher Education invited educators to consider, not only how students engage across differences, but how they recognize, make meaning of, and act upon social inequities. To expand topics of pluralism and interworldview dialogue in higher education, it is important to investigate the phenomenon …
The Relationship Between Instructional Delivery And Student Engagement In Selected Classrooms: A Cross-Case Analysis, Mayte Maria Dovale
The Relationship Between Instructional Delivery And Student Engagement In Selected Classrooms: A Cross-Case Analysis, Mayte Maria Dovale
Dissertations, Theses, and Masters Projects
Student engagement is an essential component to student learning. Miami-Dade County Public Schools (MDCPS) has focused on providing schools with a unified approach to delivering quality classroom instruction. Despite the alignment and commonalities present, underlying issues still need further investigation. Discrepancies within student proficiency and learning gains exist across schools throughout the district. The purpose of the study was to investigate what patterns exist among fourth- and fifth-grade teachers across four schools within the district concerning the use of instructional practices and how these practices relate to levels of student engagement. This study investigated the relationship between student engagement, instructional …
A Comparison Of Shorebird Habitat Use Between Living Shorelines And Natural Fringing Marshes, Robert Michael Galvin
A Comparison Of Shorebird Habitat Use Between Living Shorelines And Natural Fringing Marshes, Robert Michael Galvin
Dissertations, Theses, and Masters Projects
We examined the use of fringing marshes by herons and shorebirds in the southern portion of Chesapeake Bay. From 13 pairs of natural fringing marshes and nearby, constructed living shoreline marshes, we completed analysis of videos recorded at discrete, 30-minute intervals (dawn, dusk, high tide, low tide) throughout the 2018 and 2019 field seasons (May through August). A total of 684 hours of recording yielded 91 individual observations of birds comprising six species. Spotted Sandpipers (Actitis macularius) were observed most frequently (25), but only at living shoreline marshes. Likewise, 15 of 16 observations of Green Herons (Butorides virescens) were at …
Growth And Properties Of Vapor Diffused Nb3sn Coating For Superconducting Radiofrequency Accelerator Cavity Applications, Uttar Last Pudasaini
Growth And Properties Of Vapor Diffused Nb3sn Coating For Superconducting Radiofrequency Accelerator Cavity Applications, Uttar Last Pudasaini
Dissertations, Theses, and Masters Projects
The desire to reduce construction and operating costs of future SRF accelerators motivates the search for higher-performing alternative materials. Nb3Sn (Tc ~ 18.3 K and Hsh ~ 425 mT) is the front runner. The tin vapor diffusion process is currently the technique of choice to produce promising Nb3Sn-coated cavities. Understanding Nb3Sn nucleation and growth in this process is essential to progress. Samples representing different stages of Nb3Sn formation have been produced and studied to elucidate the effects of nucleation, growth, process conditions, and impurities. Nb3Sn films with thickness …
Boron Nitride Nanotubes (Bnnts) For Thermal Management And Structural Reinforcement, Mahmoud Samy Mohamed Fahmy Amin
Boron Nitride Nanotubes (Bnnts) For Thermal Management And Structural Reinforcement, Mahmoud Samy Mohamed Fahmy Amin
Dissertations, Theses, and Masters Projects
Boron nitride nanotubes (BNNTs) are a fascinating material that has a lot of potential applications due to its outstanding physical and chemical properties. BNNTs synthesized using different high- and low-temperature methods, unfortunately, contain 30-70% impurities. To maximize the potential of BNNTs, new characterization techniques and purification methods are needed, especially with respect to industrial applications. Research groups have used different characterization techniques to monitor the synthesis and purity of BNNTs. Quantitative and qualitative characterization of the tubes for quality or purity control has not been previously described in the literature. In this work, we created a comprehensive set of thermogravimetric …
From Pejuta To Powwow: The Evolution Of American Indian Music, Kelley Lyn Smith
From Pejuta To Powwow: The Evolution Of American Indian Music, Kelley Lyn Smith
Dissertations, Theses, and Masters Projects
In the current climate of American Indian culture in the United States, the impact of the internet on powwow music and the electronic sharing of music has superseded the more traditional sharing of music in Native cultures. Due to the unique history of American Indian cultures, Native music changed, or evolved, from medicinal uses, pejuta, to expressionism, a method in which to cope with and express the effect history has had on the American Indian people and a way in which to bond with one another in these shared experiences. The evolution of Native music is a traditional form of …
The Impact Of The Balanced Literacy Approach In Reading Instruction On Student Reading Motivation And Reading Competence, Jami Beth Clements
The Impact Of The Balanced Literacy Approach In Reading Instruction On Student Reading Motivation And Reading Competence, Jami Beth Clements
Dissertations, Theses, and Masters Projects
The purpose of this quantitative study was to investigate the impact Balanced Literacy Reading Instruction had on student motivation to read and student reading competence in the elementary school of one public school district. This study analyzed extant student summative reading assessment data and extant teacher observation data. The study also administered the Self-Regulation Questionnaire-Reading Motivation to measure the reading motivation of students who had received Balanced Literacy Reading Instruction in the district from first grade through fifth grade. The study sought to determine the amount of reading time administered during reading instruction during the implementation, the current level of …
The Impact Of High School Science, Technology, Engineering, And Mathematics (Stem) Magnet Programs On The Academic Performance Of Students, Evonne S. Alvarez
The Impact Of High School Science, Technology, Engineering, And Mathematics (Stem) Magnet Programs On The Academic Performance Of Students, Evonne S. Alvarez
Dissertations, Theses, and Masters Projects
Concern about the impact of science, technology, engineering, and mathematics (STEM) programs on society are not new. STEM employment in the United States has grown twice as fast as other fields during the last decade. School districts have been encouraged to consider STEM-focused schools to meet this demand and have responded by offering STEM magnet program options. This mixed-methods study used Lewin’s Theory of Change and Fullan’s ideas on Coherence as the theoretical frameworks to examine how students who participate in a high school STEM magnet program perform academically. Academic performance was measured using grade point average (GPA) and graduation …
Principal Support: Its Impact On Job Satisfaction And Early Career Teachers' Decisions To Remain In Teaching, John D. Pace
Principal Support: Its Impact On Job Satisfaction And Early Career Teachers' Decisions To Remain In Teaching, John D. Pace
Dissertations, Theses, and Masters Projects
This dissertation explored a growing concern - the lack of retention of early career teachers (ECTs). We investigated the perceptions of a large sample of ECTs regarding how principal support and job satisfaction affects their decisions to remain in or leave the field of education. We employed an exploratory mixed approach based on a framework derived from DiPaola's (2012) work on principal support. Three surveys collected ECTs' perceptions of principal support, job satisfaction, and their intention to remain in teaching. A series of semi-structured focus group interviews were also used to collect data from ECTs across four school-level configurations in …