UNT Theses and Dissertations - 21,383 Matching Results

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Electrostatic Mechanism of Emission Enhancement in Hybrid Metal-semiconductor Light-emitting Heterostructures

Description: III-V nitrides have been put to use in a variety of applications including laser diodes for modern DVD devices and for solid-state white lighting. Plasmonics has come to the foreground over the past decade as a means for increasing the internal quantum efficiency (IQE) of devices through resonant interaction with surface plasmons which exist at metal/dielectric interfaces. Increases in emission intensity of an order of magnitude have been previously reported using silver thin-films on InGaN/GaN… more
Date: May 2012
Creator: Llopis, Antonio
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Elemental Analysis of Brainstem in Victims of Sudden Infant Death Syndrome

Description: A brainstem-related abnormality in respiratory control appears to be one of the most compelling mechanisms for sudden infant death syndrome (SIDS). The elements calcium, copper, iron, potassium, magnesium, sodium, phosphorus, sulfur, and zinc were analyzed by inductively coupled plasma atomic emission spectroscopy in the brainstem of 30 infants who died from SIDS and 10 infants who died from other causes (control). No differences were found between SIDS and control for any element except for mo… more
Date: December 1988
Creator: Oquendo, Javier
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Elementary Math Achievement in Texas: What is Working?

Description: Elementary math teachers (76) from selected Texas schools that included Grade 5 responded to an online self-report survey with respect to school-level factors that may be associated with student math achievement. Questions on the survey focused on school-level factors related to math, campus leadership, integration of technology in the math classroom, teacher expectations, utilization of student data in decision-making and professional development. The schools included in the study were rated a… more
Date: May 2011
Creator: Moore, Linda H.
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Elementary music teachers instructing English language learners: Reflection on practice.

Description: This qualitative study investigated four monolingual, English-only speaking Caucasian elementary music teachers and their reflections regarding instruction of English language learners (ELL). The purpose of this multiple case study was to investigate the teaching practice and curricular decisions of elementary music teachers who instruct Hispanic ELL students. The investigation was conducted during a nine-week period, and data collection included classroom observations, phenomenological intervi… more
Date: December 2005
Creator: Scherler, Kathy L.
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Elementary Pre-service Teachers’ Perceptions and Experiences of Mathematics Intervention and Response to Intervention Practices

Description: Response to intervention has become a widely implemented early intervention and pre-referral program in many schools due to the reauthorization of the 2004 Individuals with Disabilities Education Act. Limited studies exist that validate how teacher preparation programs are preparing the next generation of teachers to assess students, apply early academic interventions, monitor progress, and make educational decisions for students with learning difficulties as part of an RTI program. The purpose… more
Date: August 2015
Creator: Hurlbut, Amanda Renee
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Elementary School Climate Factors and Personality and Status Variables Associated with School Library Media Specialists Chosen by Classroom Teachers for Cooperation on Instructional Problems

Description: This study investigated relationships between the extent to which elementary classroom teachers tend to choose school library media specialists for cooperation on instructional problems and several school climate and faculty related characteristics including the general academic effectiveness of the school, the overall cohesion and cooperativeness of the teaching faculty on instructional matters, and the propensity of the group and individual faculty to seek cooperation to solve instructional p… more
Date: December 1990
Creator: Bell, Michael David, 1943-
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Elementary School Teachers' Responses to Potential Child Abuse

Description: This study was designed to evaluate: (a) teachers' behavior when they are confronted with potential cases of child abuse and (b) the information teachers require to make accurate decisions regarding the reporting of suspected child abuse. Teachers were presented with three vignettes describing cases of varying levels of suspected maltreatment, and different amounts of additional information. They were then asked to indicate how likely they would be to report the case to Child Protective Service… more
Date: May 1997
Creator: Driskill, Julie D.
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Elementary Students' Critical Examination of Characters in Children's Literature Depicting Social Justice

Description: Despite the ruling of Brown vs. The Board of Education of Topeka, segregation in schools is still quite visible with suburban schools educating a student body of more than 70% White and urban schools comprised of mostly Black, Hispanic, and Asian students. Ideally, a school should dispel social and structural inequities through curriculum and quality resources, but fallibly, schools continue to be the vehicles to maintaining the status quo. Students who develop critical awareness and cultivat… more
Date: August 2016
Creator: Paiva, Deanne
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Elementary Students' Perceptions of Their Authentic Engagement when Using iPads in the Classroom

Description: The purpose of this study was to examine the impact of a 1:1 iPad initiative on student engagement in the classroom, as perceived by students. The design of this case study consisted of a purposeful sample of six, 5th grade students from a suburban elementary school in North Central Texas who participated in surveys, individual interviews, and focus group discussions. Two research questions guided this study: (1) How do elementary school students perceive they are authentically engaged when usi… more
Date: December 2018
Creator: Hayunga, Kelly Lynn
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Elementary Teacher Attrition and Factors of Organizational Climate

Description: As the United States faces a critical teacher shortage, it is important to examine all factors that may contribute to the revolving door of teacher attrition. This study explored the climate of elementary schools to determine if there was a correlation between teacher attrition and school organizational climate. Three basic research questions were addressed: 1) Is there a relationship between school organizational climate and teacher attrition? 2) Is a change in campus leadership related to sch… more
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Date: May 2003
Creator: Cotten, Virginia E.
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Elementary Teacher Candidate Perceptions of Hip-Hop Pedagogy in the Mathematics Classroom

Description: This dissertation examines elementary teacher candidates' perceptions of hip-hop culture and utilizing hip-hop pedagogy in a mathematics classroom. This study demonstrates how elements of hip-hop may be integrated into an elementary mathematics methods course to develop pedagogical knowledge that challenges teacher candidates to explore the benefits of utilizing hip-hop as a tool in the classroom. This study contributes to the growing body of research that investigates the use of hip-hop peda… more
Date: August 2018
Creator: Cason, Marti B.
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Elements of Boolean Algebra Theory

Description: The primary purpose of this paper is to state a set of postulates for Boolean algebra and show the characteristic theorems derivable from them, and to unify in one paper the more important methods of representing Boolean algebra and show their equivalence.
Date: 1957
Creator: Harvill, John Bowman
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Elements of Formal Continuity in Robert Schumann's "Novelletten," op. 21 and Other Piano Works

Description: This dissertation explores Robert Schumann's treatment of phrase boundaries in the Novelletten, Op. 21, and his other piano works from the late 1830s. It argues that in contrast to Classical-style works, which generally feature clearly delineates phrases and formal sections, Schumann's works of the 1830s undermine formal boundaries, making it difficult to discern exactly where phrases and sections begin and end. I examine three means through which Schumann promotes a sense of formal continuity … more
Date: December 2022
Creator: Nowak, Jeremy C.
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The Elements of Jazz Harmony and Analysis

Description: This study develops a method for analyzing jazz piano music, primarily focusing on the era 1935-1950. The method is based on axiomatic concepts of jazz harmony, such as the circle of fifths and root position harmonies. 7-10 motion between root and chordal seventh seems to be the driving force in jazz motion. The concept of tritone substitution leads to the idea of a harmonic level, i.e., a harmony's distance from the tonic. With this method in hand, various works of music are analyzed, illustra… more
Date: August 1986
Creator: Mahoney, J. Jeffrey
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The Elements of Lesson Design, Elementary Public School Students' Mastery of Mathematics Objectives, Accrued Teaching Experience, and Teacher Inservice Training

Description: The purpose of this study was to investigate the relationship among the teachers' use of the individual elements of lesson design, students' mastery of mathematics objectives, the hours of inservice training completed by the teachers and the teachers' years of experience. The individual elements of lesson design are defined by Madeline Hunter and are anticipatory set, objective and purpose, input, modeling, checking for understanding, guided practice, and independent practice.
Date: May 1987
Creator: Smith, James A. (James Arthur) 1945-
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Elements of Shamanic Mythology in E. T. A. Hoffman's Romantic Conception of Music

Description: The musicians in E. T. A. Hoffmann's tales and essays demonstrate traits remarkably similar to those of shamans. Hoffmann uses the same imagery to describe the journey of the composer into the "realm of dreams," where he receives inspiration, as the shaman uses to describe the spirit world to which he journeys via music. Hoffmann was a major force in changing the 18th-century view of music as an "innocent luxury" to the 19th-century idea of music as a higher art. As a German Romantic,author, he… more
Date: December 1993
Creator: Miller, Harry A. W. (Harry Alfred Werner)
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Elements of Tremendismo in the works of Carmen Laforet

Description: The purpose of this thesis is to review and to analyze the part that tremendismo has played in the fiction of Carmen Laforet. To this end, each of her published volumes will be studied individually so that her relationship to tremendismo may be clearly seen in each of its various stages.
Date: January 1964
Creator: Palmer, Joe Lerner
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Elements of Verismo in Selected Operas of Giuseppe Verdi

Description: In music, the term verismo usually refers to a realistic or naturalistic movement in Italian operas of the late nineteenth century. From the dawn of Italian opera four features have been manifested--umanita (humanism), sincerity (sincerity), passione (passion), effetto (not only theatrical effect but the supreme dramatic moment). The elements of verismo are among the characteristics present in the operas of Giuseppe Verdi where they reached a zenith of development. It is upon these veristic asp… more
Date: August 1968
Creator: Morgan, Ann Shands
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Eleven: A Novel

Description: Trauma novel refers to a work of fiction that discloses serious loss or intense fear on individuals and groups. The traumatic experience is repetitious, timeless, and unspeakable. Gayl Jones, Jesmyn Ward, Tayari Jones, Alice Walker, and Toni Morrison are only a few authors who have written this type of novel. The traumatic events that occur in the books are rape, miscarriage of justice, and slavery, to name a few. The experienced trauma manifest as fragmented memory, silence, commitment phobia,… more
Date: May 2020
Creator: Smith, Sanderia Faye
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Elicitation of Protein-Protein Interactions from Biomedical Literature Using Association Rule Discovery

Description: Extracting information from a stack of data is a tedious task and the scenario is no different in proteomics. Volumes of research papers are published about study of various proteins in several species, their interactions with other proteins and identification of protein(s) as possible biomarker in causing diseases. It is a challenging task for biologists to keep track of these developments manually by reading through the literatures. Several tools have been developed by computer linguists to a… more
Date: August 2010
Creator: Samuel, Jarvie John
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The Elimination of Cigarette Broadcast Advertising: A Model for Analysis and Prediction

Description: The problem with which this investigation is concerned is that of determining whether or not the history of cigarette advertising in broadcasting developed a pattern from which a model could be abstracted and applied to other product advertisements deemed "controversial" in broadcasting. The history of broadcast cigarette advertising is analyzed in an attempt to abstract a model, The .assumption is made that this model could be capable of predicting future regulation or elimination of broadcast… more
Date: May 1973
Creator: Woodby, Kathleen Ruth
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