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3D Printing Book History: Extending Bibliographical Pedagogy Through Additive Manufacturing
Presented at the 2017 Day of Digital Humanities. This presentation provides an overview of the 3Dhotbed project to extend bibliographical pedagogy through additive manufacturing.
Presented at the 2017 Code4Lib South Central Conference. This presentation provides an overview of the 3Dhobed project, including the process of 3D scanning, modeling, and printing hand moulds for book history instruction.
Assessing an Academic Library Professional Development Program
This article describes how measures of need, participation, satisfaction, and impact are employed to assess many aspects of a professional development program in a large academic library.
Teaching Poe in the Context of the ACRL’s Framework for Information Literacy
Presented at the 2017 American Literature Association, in a session organized by the Poe Studies Association. This presentation discusses how the Association of College and Research Libraries Framework for Information Literacy can be used as a pedagogical basis for teaching the works of Edgar Allan Poe.
Comics in Academia
Panel presented at the 2017 Comicpalooza. This panel discusses comics in academia through the lens of library exhibitions and programing, combining comics and textbooks, and the use of comics as a new rhetorical and multimodal method for exploring narrative.
Joining Forces to Jumpstart Student Success in Higher Education
Presentation for the 2017 Cross Timbers Library Collaborative Annual Conference. This presentation describes their partnerships with support services and academic departments that have facilitated services for undergraduate and graduate students.
UNT Libraries: Building Collections and Collaborations
Presentation for the 2017 Symposium on Developing Infrastructure for Computational Resources on South Asian Languages. This presentation provides an overview of digital preservation collections in the UNT Digital Library.
Accidental Activists: Mark Phariss, Vic Holmes, and Their Fight for Marriage Equality in Texas
In early 2013 same-sex marriage was legal in only ten states and the District of Columbia. That year the Supreme Court’s decision in United States v. Windsor appeared to open the door to marriage equality. In Texas, Mark Phariss and Vic Holmes, together for sixteen years and deeply in love, wondered why no one had stepped across the threshold to challenge their state’s 2005 constitutional amendment prohibiting same-sex marriage. They agreed to join a lawsuit being put together by Akin Gump Strauss Hauer & Feld LLD. Two years later—after tense battles in the Federal District Court for the Western District of Texas and in the Fifth Circuit Court of Appeals, after sitting through oral arguments at the Supreme Court of the United States in Obergefell v. Hodges—they won the right to marry deep in the heart of Texas. But the road they traveled was never easy. Accidental Activists is the deeply moving story of two men who struggled to achieve the dignity of which Justice Anthony Kennedy spoke in a series of Supreme Court decisions that recognized the “personhood,” the essential humanity of gays and lesbians. Author David Collins tells Mark and Vic’s story in the context of legal and social history and explains the complex legal issues and developments surrounding same-sex marriage in layman’s terms.
Death on the Lonely Llano Estacado: The Assassination of J. W. Jarrott, a Forgotten Hero
In the winter of 1901, James W. Jarrott led a band of twenty-five homesteader families toward the Llano Estacado in far West Texas, newly opened for settlement by a populist Texas legislature. But frontier cattlemen who had been pasturing their herds on the unfenced prairie land were enraged by the encroachment of these “nesters.” In August 1902 a famous hired assassin, Jim Miller, ambushed and murdered J. W. Jarrott. Who hired Miller? This crime has never been solved, until now. Award-winning author Bill Neal investigates this cold case and successfully pieces together all the threads of circumstantial evidence to fit the noose snugly around the neck of Jim Miller’s employer. What emerges from these pages is the strength of intriguing characters in an engrossing narrative: Jim Jarrott, the diminutive advocate who fearlessly champions the cause of the little guy. The ruthless and slippery assassin, Deacon Jim Miller. And finally Jarrott’s young widow Mollie, who perseveres and prospers against great odds and tells the settlers to “Stay put!”
On the Jury Trial: Principles and Practices for Effective Advocacy
Two outstanding Texas trial lawyers—one now an equally respected district judge—have written On the Jury Trial, a “must have” reference for any trial lawyer aspiring to excellence or seeking to maintain it. Chapter topics include voir dire, opening statement, preparing witnesses, cross examination, using exhibits, closing argument, jury research, and more, with excellent examples and “do’s and don’ts” provided throughout. Think of this book as the senior law partner’s memo to associates on how to really try a case. Looking for fly-on-the-wall insight into world-class trial preparation and strategy? Here it is. A behind-the-scenes tour of the inner workings of the judicial process? This book has you covered. Its combination of advice, illustration, and commentary is every bit as valuable as it is unique. Every litigator should have this book on the shelf, no matter the state in which they practice.
Yesterday There Was Glory: With the 4th Division, A.E.F., in World War I
In 1946, World War I veteran and self-described “buck private in the rear rank” Gerald Andrew Howell finished a memoir of the experiences of his squad from the 39th Infantry Regiment, 4th Division, and their “moments of horror, tragedy, humor, amour, [and] promiscuity” in Europe. This was “the old Army as it used to be,” Howell explains—the saga of the “down-trodden doughboy.” A few months later Howell was dead, his manuscript unpublished. Jeffrey Patrick discovered the memoir and the author’s correspondence with publishers and took on the task of bringing it to publication at last. Yesterday There Was Glory is an unpretentious account of men at war, from training camp to the occupation of Germany. It includes graphic descriptions of the battlefield, of shell fire, gas attacks, and lice. “Between the attacks the men would lay in their wet holes and pray for relief. But no relief came,” Howell remembers. He recalls much more than the horrors of combat, however, chronicling the diverse collection of heroes, professional warriors, shirkers, and braggarts that made up the American Expeditionary Forces. Howell and his comrades longed for wounds that would allow them to escape the war, but resolutely engaged the Germans in hand-to-hand combat. They poked fun at their comrades, but were willing to share their last can of food. They endured difficult marches, pursued “mademoiselles” and “frauleins,” and even staged a “strike” to protest mistreatment by their officers. They were as “ribald as any soldiery in any army,” Howell admits, but “underneath this veneer, they were really patriotic, steadfast and sincere.” Patrick provides an editor’s introduction and annotations to explain terms and sources in the memoir. Howell’s account preserves the flavor of army life with conversations and banter in soldier language, including the uncensored doughboy profanity often heard but seldom recorded. His ...
We Were Going to Win, or Die There: with the Marines at Guadalcanal, Tarawa, and Saipan
In 1940, native West Texan Roy H. Elrod joined the Marine Corps. A few years later his unit, the 8th Marine Regiment, went into the fight at Guadalcanal, where he commanded a platoon of 37 mm gunners. They endured Japanese attacks, malarial tropical weather, and starvation rations. His combat leadership earned him a Silver Star and a battlefield promotion. On D-Day at Tarawa his platoon waded their 37 mm cannons ashore, each weighing nearly 1,000 pounds, through half a mile of bullet-laced surf to get to an island where the killing never stopped. His was the only platoon to get its guns ashore and into action that first day. At Saipan, Elrod commanded a platoon of 75 mm half tracks, but he was riddled with shrapnel from an enemy artillery shell that took him out of the war. Fred H. Allison interviewed Elrod, drew upon wartime letters home, and provided annotations to the narrative of this young Marine infantry officer, a job that had an extremely low survival potential.
Drawing from fairy tales, ghost stories, and science-fiction, the stories in ActivAmerica explore how we confront (and exert) power and re-imagine ourselves through sports and athletic activities. A group of girls starts an illicit hockey league in a conservative suburb. A recently separated woman must run a mile a day in order to maintain her new corporate health insurance. Children impacted by environmental disaster create a “mutant soccer team.” Two sisters are visited by an Olympic gymnast who demands increasingly dangerous moves from them. Sports allow the characters to form communities on soccer fields and hidden lakes, in overgrown backyards and across Ping-Pong tables. Throughout the collection, however, athletic risk also comes with unexpected, often unsettling results.
Texas Rangers: Lives, Legend, and Legacy
Authors Bob Alexander and Donaly E. Brice grappled with several issues when deciding how to relate a general history of the Texas Rangers. Should emphasis be placed on their frontier defense against Indians, or focus more on their role as guardians of the peace and statewide law enforcers? What about the tumultuous Mexican Revolution period, 1910-1920? And how to deal with myths and legends such as One Riot, One Ranger? Texas Rangers: Lives, Legend, and Legacy is the authors’ answer to these questions, a one-volume history of the Texas Rangers. The authors begin with the earliest Rangers in the pre-Republic years in 1823 and take the story up through the Republic, Mexican War, and Civil War. Then, with the advent of the Frontier Battalion, the authors focus in detail on each company A through F, relating what was happening within each company concurrently. Thereafter, Alexander and Brice tell the famous episodes of the Rangers that forged their legend, and bring the story up through the twentieth century to the present day in the final chapters.
The Ranger Ideal
Established in Waco in 1968, the Texas Ranger Hall of Fame and Museum honors the iconic Texas Rangers, a service which has existed, in one form or another, since 1823. They have become legendary symbols of Texas and the American West. Thirty-one Rangers, with lives spanning more than two centuries, have been enshrined in the Hall of Fame. In The Ranger Ideal Volume 1: Texas Rangers in the Hall of Fame, 1823-1861, Darren L. Ivey presents capsule biographies of the seven inductees who served Texas before the Civil War. He begins with Stephen F. Austin, “the Father of Texas,” who laid the foundations of the Ranger service, and then covers John C. Hays, Ben McCulloch, Samuel H. Walker, William A. A. “Bigfoot” Wallace, John S. Ford, and Lawrence Sul Ross. Using primary records and reliable secondary sources, and rejecting apocryphal tales, The Ranger Ideal presents the true stories of these intrepid men who fought to tame a land with gallantry, grit, and guns. This Volume 1 is the first of a planned three-volume series covering all of the Texas Rangers inducted into the Hall of Fame and Museum in Waco, Texas.
Attachment, Coping, and Psychiatric Symptoms among Military Veterans and Active Duty Personnel: A Path Analysis Study
The purpose of this study was to examine the role of attachment processes and coping strategies in the development of psychiatric symptoms among military veterans and active duty personnel. Data were obtained from 268 male and female military veterans and active duty personnel. A path analysis was conducted to estimate the relationships between attachment processes, coping strategies, and psychiatric symptoms. Findings demonstrated that greater levels of attachment anxiety were related to increased levels of avoidant coping and psychiatric symptoms, while higher levels of attachment avoidance were related to avoidant coping and PTSD symptoms, as well as decreased levels of problem-focused coping. Alcohol use was associated with psychiatric symptoms. Avoidant coping, but not problem-focused coping, was associated with psychiatric symptoms and partially mediated the relationship between anxious attachment and psychiatric symptoms. Avoidant coping also fully or partially mediated the relationships of avoidant attachment to depression and PTSD symptoms. The findings of this study increase our knowledge of mechanisms that contribute to psychiatric symptoms among military populations, which in turn can guide treatment planning and interventions.
Service Honest and Faithful: The Thirty-Third Volunteer Infantry Regiment in the Philippine War, 1899-1901
This manuscript is a study of the Thirty-Third Infantry, United States Volunteers, a regiment that was recruited in Texas, the South, and the Midwest and was trained by officers experienced from the Indian Wars and the Spanish-American War. This regiment served as a front-line infantry unit and then as a constabulary force during the Philippine War from 1899 until 1901. While famous in the United States as a highly effective infantry regiment during the Philippine War, the unit's fame and the lessons that it offered American war planners faded in time and were overlooked in favor of conventional fighting. In addition, the experiences of the men of the regiment belie the argument that the Philippine War was a brutal and racist imperial conflict akin to later interventions such as the Vietnam War. An examination of the Thirty-Third Infantry thus provides valuable context into a war not often studied in the United States and serves as a successful example of a counterinsurgency.
The Experience of Language Use for Second Generation, Bilingual, Mexican American, 5th Grade Students
There is a paucity of research regarding language use among bilingual clients, particularly with Latino children. In order to provide culturally sensitive counseling for bilingual, Spanish-speaking, Latino children it is important to understand their experience of language use. The purpose of this study was to investigate how second generation, bilingual, Mexican American, 5th grade students experience language use in the two languages with which they communicate. I employed a phenomenological method to data collection and analysis and conducted semi-structured individual and group interviews with three boys and five girls (N = 8). Analysis of the individual and group interviews yielded four main structures: (a) dominant language determined perception of developing dual selves, (b) speaking two languages useful in language brokering and upward mobility, (c) dominant language determined experience of language use, and (d) language use and aspects of the complementarity principle. Findings from this study suggest that bilingual Latino children experience language brokering for their parents as difficult, speaking two languages as useful regarding upward mobility, and that their dominant language influences various aspects of their daily experiences such as with whom and where they use each language. Limitations to this research include insufficient time building rapport with participants and challenges related to unexplored dimensions of bilingualism in the counseling research literature. An overarching implication for future research, clinical practice, and counselor education is that bilingualism, language use, and the depth of experience of Latino children are largely understudied topics.
Molecular Dynamics Simulations of the Structure and Properties of Boron Containing Oxide Glasses: Empirical Potential Development and Applications
Potential parameters that can handle multi-component oxide glass systems especially boron oxide are very limited in literature. One of the main goals of my dissertation is to develop empirical potentials to simulate multi-component oxide glass systems with boron oxide. Two approaches, both by introducing the composition dependent parameter feature, were taken and both led to successful potentials for boron containing glass systems after extensive testing and fitting. Both potential sets can produce reasonable glass structures of the multi-component oxide glass systems, with structure and properties in good agreement with experimental data. Furthermore, we have tested the simulation settings such as system size and cooling rate effects on the results of structures and properties of MD simulated borosilicate glasses. It was found that increase four-coordinated boron with decreasing cooling rate and system size above 1000 atoms is necessary to produce converged structure. Another application of the potentials is to simulate a six-component nuclear waste glass, international simple glass (ISG), which was for first time simulated using the newly developed parameters. Structural features obtained from simulations agree well with the experimental results. In addition, two series of sodium borosilicate and boroaluminosilicate glasses were simulated with the two sets of potentials to compare and evaluate their applicability and deficiency. Various analyses on the structures and properties such as pair distribution function, total correlation function, coordination number analysis, Qn distribution function, ring size distribution function, vibrational density of states and mechanical properties were performed. This work highlights the challenge of MD simulations of boron containing glasses and the capability of the new potential parameters that enable simulations of wide range of mixed former glasses to investigate new structure features and design of new glass compositions for various applications.
"Failure to Yield": Essays
Failure to Yield is a collection of creative nonfiction that explores themes of presence and emotional connection and expression. The seven essays, which include three flash essays, explore the themes by reflecting on such topics as marriage, parent-child relationships and addiction. The collection is woven together by the author's relationships with her parents and children and by her experiences growing up in a small town in Iowa.
Catalysts of Women's Success in Academic STEM: A Feminist Poststructural Analysis
This study analyzes senior women faculty's discourses about personal and professional experiences they believe contributed to their advancement in academic careers in science, technology, engineering, and mathematics (STEM). The purpose of the study is to understand factors that activate women's success in STEM disciplines where women's representation has not yet attained critical mass. A poststructuralist emphasis on complexity and changing nature of power relations offers a framework that illuminates the ways in which elite women navigate social inequalities, hierarchies of power, and non-democratic practices. Feminist poststructural discourse analysis (FPDA) methods allow analysis of women's talk about their experiences in order to understand the women's complex, shifting positions. Eight female tenured full professors of STEM at research-focused universities in the United States participated in the study. Data sources were in-depth semi-structured interviews, a demographic survey, and curricula vitae. Findings will help shape programs and policies aimed at increasing female representation and promoting achievement at senior levels in academic STEM fields.
The Impact of True Fit Technology on Millennial Consumer Confidence and Satisfaction in their Online Clothing Purchase
This study examines the use of True Fit® technology by millennial consumers and its impact on consumer confidence and satisfaction with respect to online sizing. In the apparel industry, there is a lack of size standards among retailers, and as a result consumers will encounter frequent size variations in their clothing size. Difference sizing technology has been developed to address the sizing issue. One is True Fit® which unlike other sizing technologies, uses mathematical algorithms to compile large amounts of data from designers. The purpose of this study was to analyze consumer confidence and satisfaction after True Fit® has been used to make a sizing decision while online shopping. The technology acceptance model (TAM) was used as the basis for the theoretical framework for this study. TAM explores how current advances in technology are influencing consumers' behaviors and attitudes. The variables studies included perceived ease of use, perceived usefulness, attitude, intent to use True Fit®, confidence and satisfaction. The methodology used in the study is a quantitative method consisting of an online survey and a True Fit® task, where consumers were exposed to True Fit® prior to answering questions about the use of sizing technology. The results of the study suggest the dependent variable of confidence and satisfaction with the sizing technology was positively affected by the intent to use True Fit®. Thus, it can be inferred that consumers felt positively about adopting apparel size technology and that technology such as this would have wide application in the future.
Rediscovering James Robert Gillette's "Vistas"
James Robert Gillette (1886-1963) was an early advocate for original wind band music at a time when marches and band transcriptions of orchestral music contributed heavily to the wind band repertoire. Primarily known as an influential, in-demand organist and composer, Gillette became the director of the Carleton College band program in Northfield, Minnesota in 1924. Taking an innovative approach to building, organizing, and programming, Gillette transformed that group into the Carleton Symphony Band and led a wider push for the symphonic band movement. In promoting his ideals of the symphonic band, he composed and arranged music specifically for the Carleton Symphony Band. One of his original works, Vistas, was widely performed and well-received in the decade just prior to and after its publication in 1934. Despite the popularity of the piece at that time, it has since gone out of print and is a rarely performed piece from Gillette's repertoire. This dissertation focuses on Vistas, Gillette's second published tone poem. This study starts with the examination of the history of Vistas from its origins as a movement in Gillette's transcription of Paul Robert Fauchet's Symphony in B-flat to its subsequent transformation and publication as an original work for band. Next, the performance history and reception of Vistas in the United States is traced and described from the year of publication to the present day. Finally, discrepancies present in the 1934 publication of Vistas are addressed through the creation of a performance edition. This performance edition also provides modifications to make the piece more widely accessible to wind bands today and the full score is presented at the end of the study.
Considerations for Global Development and Impact using Haiti as a Case Study
As the world becomes more connected, issues surrounding sustainable development are coming to the fore of global discussions. This is exemplified in strategies such as the United Nation's Sustainable Development Goals (SDGs), released in 2015, which created a framework for global development that defines specific goals for issues like poverty, climate change, and social justice. To complement the analysis that went into defining the SDGs, capital allocations around the world are becoming more impact focused so that the paradigm of development is shifting from donations to impact investments. The push for impact, however, has led to a homogenization of global challenges like reproductive health and poverty. This, in turn, has led to a standardization of information resulting in agencies designing interventions based on data and information that is misguided because of incorrect assumptions about a specific context. This paper explores how the decision-making mechanisms of global development agencies and investors could apply more anthropological processes to mitigate negative impact. As the development sector becomes more and more standardized, anthropologists can act as translators between affected communities and the institutions deciding how best to help them.
Corbicula fluminea Invasion as a Secondary Effect of Hydrilla verticillata Management via Triploid Grass Carp (Ctenopharyngodon idella)
A study of Asian clam (Corbicula fluminea Müller) colonization in relation to changes in aquatic vegetation community as a result of management of Hydrilla verticillata (L. f.) Royle with grass carp was conducted at the Lewisville Aquatic Ecosystem Research Facility (LAERF), Lewisville, TX, from April 2015 through October 2016. Percent vegetation cover, C. fluminea abundance and water quality metrics (pH, turbidity, conductivity, DO, calcium, chlorophyll a) from 16 experimental subjects were analyzed. Treatments included four replicated grass carp stocking densities; 1-control with no fish stocked (n = 4), 2-low density of 40-43 fish per vegetated ha (n = 4), 3-medium density of 72-81 fish per vegetated ha (n = 4) and 4-high density of 110-129 fish per vegetated ha (n = 4). Data analysis showed statistical significance in the relation of C. fluminea abundance to percent vegetation cover (multiple linear regression, r2 = 0.820), grass carp stocking densities (two-way analysis of variance, p = <0.001) and chlorophyll a (multiple linear regression, r2 = 0.339). Findings of this research indicate the possibility that management of hydrilla had enabled establishment of secondary invasive species.
Solo Violin in Gustav Mahler's Symphonic Works as a Musical Sign
Noted for both vocal and symphonic output, Gustav Mahler's musical sophistication constantly puzzled scholars in the past decades. In his symphonic works, the mixed forms and styles in combination with the vocal influence make it abstruse for listeners to detect the meaning of the use of traditional instruments. The solo violin, which has an extensive history of appearing in symphonic compositions since the Baroque era, is an instance of a traditional instrument given an unusual function. For instance, Mahler's violin solos do not tend to showcase the virtuosity of the instrument as they normally do in orchestral music. In order to closely examine the role of the solo violin, I rely on aspects relating to introversive semiosis such as harmonies, rhythms, textures, phrase structures, and forms; then my focus shifts to extroversive semiosis, specifically to topics and contextual factors. By considering the violin as a musical sign, listeners can comprehend the instrument's structure, syntax, and ultimately the complex logic of Mahler's musical discourse.
Children with Emotional and Behavioral Disorders in Saudi Arabia: A Preliminary Prevalence Screening
Education in Saudi Arabia, including the education of children with special needs, is developing rapidly. However, children with emotional and behavioral disorders are neither consistently identified nor adequately served in Saudi Arabia although they are recognized as a distinct category of children who require special education services. The goal of this study was to examine the prevalence of emotional and behavioral disorders among children in Saudi Arabia to assess the need for intervention services to help those children reach their potential. The current research identified the types of behaviors that are most evident in the study sample. Also, the relationship between demographics and emotional and behavioral disorders is studied to identify possible predictors of disruptive forms of behavior. Parents of children aged 4-17 years in Saudi Arabia were surveyed using the Strengths and Difficulties Questionnaire. The findings of the study suggest that children with emotional and behavioral disorders in Saudi Arabia may account for 20% of the population of children between the ages of 4 and 17. The findings also revealed that over 20% of children in Saudi Arabia have difficulties in peer relationship and lack the necessary prosocial behaviors. The parent reporting, child gender, child education type, the geographical region, the father's education level, and the family's socioeconomic status were found to be statistically significant predictors of children's difficulties. However, these predictors were only able to explain a small portion of the difficulty scores.
Homologs of Mammalian Lysosomal Lipase in Arabidopsis and Their Roles in Lipid Droplet Dynamics
Lipid droplets (LDs) are organelles with many functions in cells and numerous protein interactors facilitate their biogenesis, maintenance, and turnover. The mammalian lipase responsible for LD turnover during lipophagy, LipA, has two candidate homologs in Arabidopsis: MPL1 and LIP1. One or both of these plant homologs may function in a similar manner to mammalian LipA, providing an LD breakdown pathway. To test this hypothesis, wild type (WT) Arabidopsis plants, MPL1 over-expressing (OE) mutants, and T-DNA insertion mutants of MPL1 (mpl1) and LIP1 (lip1) were examined for LD phenotypes in normal conditions and in environments where LD numbers are known to fluctuate. Plants to be imaged by confocal microscopy were exposed to heat stress and wounding to increase LD accumulation, senescence was induced in leaves to deplete lipids, and LDs were imaged throughout the day/night period to observe their diurnal regulation. The mutation of both MPL1 and LIP1 lead to an increase in LDs within the leaf mesophyll cells, although the spatial distribution of the LDs differed between the two mutants. mpl1 mutants had disrupted diurnal regulation of their LDs, but lip1 mutants did not. Alternately, lip1 mutants retained LDs during dark-induced senescence, and mpl1 mutants did not. Together these results suggest that MPL1 and LIP1 are likely both important for LD dynamics; however they appear have roles in different aspects of LD accumulation and turnover.
Arduino Based Hybrid MPPT Controller for Wind and Solar
Renewable power systems are becoming more affordable and provide better options than fossil-fuel generation, for not only the environment, but a benefit of a reduced cost of operation. Methods to optimize charging batteries from renewable technologies is an important subject for off-grid and micro-grids, and is becoming more relevant for larger installations. Overcharging or undercharging the battery can result in failure and reduction of battery life. The Arduino hybrid MPPT controller takes the advantage of solar and wind energy sources by controlling two systems simultaneously. The ability to manage two systems with one controller is better for an overall production of energy, cost, and manageability, at a minor expense of efficiency. The hybrid MPPT uses two synchronous buck DC-DC converters to control both wind and solar. The hybrid MPPT performed at a maximum of 93.6% efficiency, while the individual controller operated at a maximum 97.1% efficiency when working on the bench test. When designing the controller to manage power production from a larger generator, the inductor size was too large due to the frequency provided by the Arduino. A larger inductor means less allowable current to flow before the inductor becomes over saturated, reducing the efficiency of the controller. Utilizing a different microcontroller like the PIC16C63A produces a much faster frequency, which will reduce the inductor size needed and allow more current before over saturation.
The Effects of Multicultural Discussions and Supervisory Working Alliance on Multicultural Counseling Competence
This study examined the influence of multicultural training, multicultural discussions in supervision, and the supervisory working alliance on multicultural counseling competence. The sample consisted of 57 doctoral counseling interns, doctoral graduate students and post-doctoral students in counseling and clinical psychology. Participants completed several instruments including a demographic questionnaire, the Supervisory Working Alliance Inventory - Trainee, and the Multicultural Counseling Inventory. They filled out two questionnaires created for this study, one assessing multicultural discussions in supervision and another quantifying their multicultural training experience. Data analyses included multiple hierarchical regression, utilizing the Hayes PROCESS macro. Multicultural discussions in supervision moderated the relationship between the supervisory working alliance and multicultural counseling competence, but did not significantly moderate the relationship between multicultural training and multicultural counseling competence. Findings suggest that when multicultural discussions in supervision are positive, they significantly increases the strength of the relationship between good supervisory working alliance and multicultural counseling competence in psychology trainees. The findings may inform supervision practices and improve multicultural counseling competence in psychology graduate student trainees.
Postmodern Multiplicities in Three Original Works
My recent compositions are situated within a postmodern theoretical framework. The heterogeneity of materials and hybridity of musical formation in these works are interpreted and contextualized within a personal reading of postmodern theories. The critical essay traces my aesthetics through a historical investigation into the definition of musical postmodernism. Through extensive citation and analysis of the writings of Julius T. Fraser, Italo Calvino, and Richard Rorty, the essay aims to provide a theoretical context for the interpretation of the musical examples. The creative documentation contains three newly-composed musical works: Piano Trio from Opus 3/c, Opus 6 for Violin, and Opus 7 for Piccolo. The works' postmodern features include creative approaches to the fragmentation of musical time into separate levels, historical allusions, and the exploration of multiplicity.
Nathanael Greene and the Myth of the Valiant Few
Nathan Greene is the Revolutionary Warfare general most associated with unconventional warfare. The historiography of the southern campaign of the revolution uniformly agrees he was a guerrilla leader. Best evidence shows, however, that Nathanael Greene was completely conventional -- that his strategy, operations, tactics, and logistics all strongly resembled that of Washington in the northern theater and of the British commanders against whom he fought in the south. By establishing that Greene was within the mainstream of eighteenth-century military science this dissertation also challenges the prevailing historiography of the American Revolution in general, especially its military aspects. The historiography overwhelmingly argues the myth of the valiant few -- the notion that a minority of colonists persuaded an apathetic majority to follow them in overthrowing the royal government, eking out an improbable victory. Broad and thorough research indicates the Patriot faction in the American Revolution was a clear majority not only throughout the colonies but in each individual colony. Far from the miraculous victory current historiography postulates, American independence was based on the most prosaic of principles -- manpower advantage.
Psychopathy in Male and Female Offenders: Validating the CAPP-IRS and Investigating the Impact of Gender Role Conformity
Recent conceptualizations of psychopathy are moving toward more inclusive, purely trait-based models. However, researchers continue to heavily rely on assessments of psychopathy that include categorical behavioral elements. The newly developed Comprehensive Assessment of Psychopathic Personality – Institutional Rating Scale appears to be a promising interview-based measure of psychopathy, but research on its reliability and validity is in its infancy. As a second issue, the vast majority of research on psychopathy, particularly in offender populations, is conducted with male participants. Nonetheless, the growing body of literature involving incarcerated females suggests gender differences in the prevalence and manifestation of psychopathic traits. Reasons for these differences are unclear, but some have proposed socialized gender roles as a contributing factor. With a sample of 52 female 49 male offenders recruited from a large, metropolitan jail, this dissertation evaluated the construct validity of the CAPP-IRS and examined the effect of gender role conformity on the manifestation of psychopathic traits. Results indicated that a three-factor model of psychopathy represented by antagonistic interpersonal relations, restricted emotions, and disinhibited behavior best fit the data. Findings further suggested convergent and discriminant validity for the CAPP-IRS. Additionally, masculine and feminine gender role conformity differentially related to psychopathy, but generally accounted for a small proportion of the variance in psychopathic traits. Recommendations for future research on the CAPP model and its assessment as well as implications for the clinical assessment of psychopathy in women are discussed.
How Does It Feel to be Creative?
How does it feel to be creative? Such a question, when approached from a phenomenological perspective, reveals new understandings about the embodied experience of creativity, and how it feels as it is being lived. This investigation begins with a provocative contrast of two environments where creativity is thought to manifest itself: school art classrooms, where creativity is often legislated from an authority figure, and New Orleans Second Line parades, where creativity is organically and kinetically expressed. A thorough review of the literature on creativity focuses on education, arts education, creative economies, psychology, and critical theorists, collectively revealing a cognitive bias and striking lack of consideration for community, freedom, and the lived experience of being creative. Further discussions in the literature also neglect sites of creativity, and the impact that place (such as a school classroom) can have upon creativity. The phenomenological perspectives of Merleau-Ponty, Heidegger, Bachelard, and Trigg support a methodological lens to grasp embodied knowledge, perceptions of placedness on creativity, and the interdependent frictions between freedom, authenticity, movement and belonging. The research method includes investigations in New Orleans in archives, examination of visual and material culture, participation in cultural practice, and formal and informal interviews. Further, the phenomena of walking and wandering became a methodology for embodied data collection that clarified the emerging rich experiences and descriptions of how it feels to be creative, especially how it feels to be creative in a creative place. What is also revealed are intense frictions, such as the tension between perceptions of personal freedom and a high demand for authenticity in terms of New Orleans traditions, that opens the space and fuels the inspiration for the abundance of creativity found in New Orleans culture.
Facets of Positive Affect and Risk for Bipolar Disorder: Role of the Behavioral Activation System
Bipolar disorder is characterized by disruptions in mood and affect that occur not only during mood episodes, but during euthymic periods as well. At the same time, sensitivity of the behavioral activation system (BAS) has been implicated in the disorder and is a risk marker for it. Less clear is the relationship between BAS sensitivity and positive affect, particularly lower level facets of positive affect. The aim of the present study was to examine the relationship between positive affect and vulnerability for mania as assessed using BAS sensitivity. Specifically, the link between daily levels and fluctuations of positive affect and baseline BAS sensitivity was examined. Following the hierarchical model of affect, this study also assessed the relationship between BAS sensitivity and the distinct facets of positive affect. Finally, this study examined whether BAS sensitivity moderates associations between daily rewards and positive affect. Undergraduates (N = 265) from a large university in the South were recruited to complete measures of BAS sensitivity, affect, and mood symptoms at baseline. Using ecological momentary assessment (EMA), participants completed daily surveys assessing affect and engagement with rewarding situations. An exploratory factory analysis revealed a four factor structure of positive affect, consisting of Serenity, Joviality, Attentiveness, and Self-Assurance. Greater daily levels of overall positive affect, as well as the lower order facets of Joviality, Self-Assurance, and Attentiveness, were predicted by heightened BAS sensitivity. In contrast, the facet of Serenity demonstrated minimal associations with BAS sensitivity. The study findings support a multi-faceted structure of positive affect and suggest that certain facets may be more closely related to risk for bipolar disorder. Specifically, Joviality and Self-Assurance may represent maladaptive forms of positive affect, whereas Serenity may function as a protective element against bipolar disorder.
Modeling of High Strain Rate Compression of Austenitic Shape Memory Alloys
Shape memory alloys (SMAs) exhibit the ability to absorb large dynamic loads and, therefore, are excellent candidates for structural components where impact loading is expected. Compared to the large amount of research on the shape memory effect and/or pseudoelasticity of polycrystalline SMAs under quasi-static loading conditions, studies on dynamic loading are limited. Experimental research shows an apparent difference between the quasi-static and high strain rate deformation of SMAs. Research reveals that the martensitic phase transformation is strain rate sensitive. The mechanism for the martensitic phase transformation in SMAs during high strain rate deformation is still unclear. Many of the existing high strain rate models assume that the latent heat generated during deformation contributes to the change in the stress-strain behavior during dynamic loading, which is insufficient to explain the large stress observed during phase transformation under high strain rate deformation. Meanwhile, the relationship between the phase front velocity and strain rate has been studied. In this dissertation, a new resistance to phase transformation during high strain rate deformation is discussed and the relationship between the driving force for phase transformation and phase front velocity is established. With consideration of the newly defined resistance to phase transformation, a new model for phase transformation of SMAs during high strain rate deformation is presented and validated based on experimental results from an austenitic NiTi SMA. Stress, strain, and martensitic volume fraction distribution during high strain rate deformation are simulated using finite element analysis software ABAQUS/standard. For the first time, this dissertation presents a theoretical study of the microscopic band structure during high strain rate compressive deformation. The microscopic transformation band is generated by the phase front and leads to minor fluctuations in sample deformation. The strain rate effect on phase transformation is studied using the model. Both the starting stress for transformation and ...
Trends in Special Education Due Process Hearings in Texas from 2010-2015: School, Parent, and Social Justice Issues that Inform a Principal's Decision-Making
This study explores all due process hearings that occurred in Texas public school districts from 2010-2015. Special attention was paid to the reasons for the hearings within the legal reports addressed and their outcomes. The study was conducted using a quantitative approach involving a legal document content analysis of due process hearings to select the participants to be interviewed with a qualitative semi-structured interview protocol. Following this process, nine participants from one district were interviewed. Responses were then analyzed for themes and patterns using qualitative methods, and conclusions were drawn based on the data. The study found that campus and central office administrators believed socio-economic levels, lack of empathy shown to parents, and distrust contributed to parents' decisions to file due process complaints or litigation. They also believed that placement decisions influenced by student discipline, parent denial about the impact of the disability on children, and parent entitlement played a role. Lastly, the nine participants found that parent advocacy and communication were strong contributors to the amount of due process hearings held at Evergreen ISD.
Design of Bioinspired Conductive Smart Textile
Electrically conductive fabrics are one of the major components of smart textile that attracts a lot of attention by the energy, medical, sports and military industry. The principal contributors to the conductivity of the smart textiles are the intrinsic properties of the fiber, functionalization by the addition of conductive particles and the architecture of fibers. In this study, intrinsic properties of non-woven carbon fabric derived from a novel linear lignin, poly-(caffeyl alcohol) (PCFA) discovered in the seeds of the vanilla orchid (Vanilla planifolia) was investigated. In contrast to all known lignins which comprise of polyaromatic networks, the PCFA lignin is a linear polymer. The non-woven fabric was prepared using electrospinning technique, which follows by stabilization and carbonization steps. Results from Raman spectroscopy indicate higher graphitic structure for PCFA carbon as compared to the Kraft lignin, as seen from G/D ratios of 1.92 vs 1.15 which was supported by a high percentage of graphitic (C-C) bond observed from X-ray photoelectron spectroscopy (XPS). Moreover, from the XRD and TEM a larger crystal size (Lc=12.2 nm) for the PCFA fiber was obtained which correlates to the higher modulus and conductivity of the fiber. These plant-sourced carbon fabrics have a valuable impact on zero carbon footprint materials. In order to improve the strength and flexibility of the non-woven carbon fabric, lignin was blended with the synthetic polymer Poly acrylonitrile (PAN) in different concertation, resulting in electrical conductivity up to (7.7 S/cm) on blend composition which is enough for sensing and EMI shielding applications. Next, the design of experiments approach was used to identify the contribution of the carbonization parameters on the conductivity of the fabrics and architecture of the fibers, results show carbonization temperature as the major contributing factor to the conductivity of non-woven fabric. Finally, a manufacturing procedure was develop inspired by the ...
The Influence of Disease Mapping Methods on Spatial Patterns and Neighborhood Characteristics for Health Risk
This thesis addresses three interrelated challenges of disease mapping and contributes a new approach for improving visualization of disease burdens to enhance disease surveillance systems. First, it determines an appropriate threshold choice (smoothing parameter) for the adaptive kernel density estimation (KDE) in disease mapping. The results show that the appropriate threshold value depends on the characteristics of data, and bandwidth selector algorithms can be used to guide such decisions about mapping parameters. Similar approaches are recommended for map-makers who are faced with decisions about choosing threshold values for their own data. This can facilitate threshold selection. Second, the study evaluates the relative performance of the adaptive KDE and spatial empirical Bayes for disease mapping. The results reveal that while the estimated rates at the state level computed from both methods are identical, those at the zip code level are slightly different. These findings indicate that using either the adaptive KDE or spatial empirical Bayes method to map disease in urban areas may provide identical rate estimates, but caution is necessary when mapping diseases in non-urban (sparsely populated) areas. This study contributes insights on the relative performance in terms of accuracy of visual representation and associated limitations. Lastly, the study contributes a new approach for delimiting spatial units of disease risk using straightforward statistical and spatial methods and social determinants of health. The results show that the neighborhood risk map not only helps in geographically targeting where but also in tailoring interventions in those areas to those high risk populations. Moreover, when health data is limited, the neighborhood risk map alone is adequate for identifying where and which populations are at risk. These findings will benefit public health tasks of planning and targeting appropriate intervention even in areas with limited and poor-quality health data. This study not only fills the identified ...
Child Centered Play Therapy (CCPT) with Latina/o Children Exhibiting School Behavior Problems: Comparative Effects of Delivery by Spanish-Speaking and English-Speaking Counselors
The shortage of bilingual counselors is one barrier to young Latina/o children receiving mental health services. Child-centered play therapy (CCPT) is a developmentally responsive intervention based on the premise that play is children's natural means of communication across cultures. This randomized controlled study examined the effects of CCPT with young Spanish-speaking Latina/o children exhibiting clinical levels of school behavior problems. Participants were 57 pre-K to kindergarten Latina/o children (72% male; mean age = 4.0) randomly assigned to three treatment groups: CCPT with Spanish-speaking, bilingual counselors; CCPT with English-speaking, monolingual counselors; or active control (bilingual mentoring). Monolingual counselors participated in cultural competency training and supervision with bilingual counselors and supervisors. According to independent observers and teachers blinded to children's group assignment, both the bilingual CCPT group and the monolingual CCPT group demonstrated moderate treatment effects over bilingual mentoring, yet between-group differences were not statistically significant. Analysis of within-group change over time indicated that children in both CCPT interventions demonstrated statistically significant improvement, while the mentoring group did not. The percentage of children in each treatment group who improved from clinical to normal behavioral functioning suggests the clinical significance of the findings: 80% bilingual CCPT, 70% monolingual CCPT, 15% bilingual mentoring. Overall, findings indicate that CCPT, whether delivered by bilingual counselors or culturally-competent, monolingual counselors, is a promising intervention for young Latina/o children exhibiting behavior problems.
Analysis and Performance of a Cyber-Human System and Protocols for Geographically Separated Collaborators
This dissertation provides an innovative mechanism to collaborate two geographically separated people on a physical task and a novel method to measure Complexity Index (CI) and calculate Minimal Complexity Index (MCI) of a collaboration protocol. The protocol is represented as a structure, and the information content of it is measured in bits to understand the complex nature of the protocol. Using the complexity metrics, one can analyze the performance of a collaborative system and a collaboration protocol. Security and privacy of the consumers are vital while seeking remote help; this dissertation also provides a novel authorization framework for dynamic access control of resources on an input-constrained appliance used for completing the physical task. Using the innovative Collaborative Appliance for REmote-help (CARE) and with the support of a remotely located expert, fifty-nine subjects with minimal or no prior mechanical knowledge are able to elevate a car for replacing a tire in an average time of six minutes and 53 seconds and with an average protocol complexity of 171.6 bits. Moreover, thirty subjects with minimal or no prior plumbing knowledge are able to change the cartridge of a faucet in an average time of ten minutes and with an average protocol complexity of 250.6 bits. Our experiments and results show that one can use the developed mechanism and methods for expanding the protocols for a variety of home, vehicle, and appliance repairs and installations.
Educational Technology: A Comparison of Ten Academic Journals and the New Media Consortium "Horizon Reports" for the Period of 2000-2017
This exploratory and descriptive study provides an increased understanding of the topics being explored in both published research and industry reporting in the field of educational technology. Although literature in the field is plentiful, the task of synthesizing the information for practical use is a massive undertaking. Latent semantic analysis was used to review journal abstracts from ten highly respected journals and the New Media Consortium Horizon Reports to identify trends within the publications. As part of the analysis, 25 topics and technologies were identified in the combined corpus of academic journals and Horizon Reports. The journals tended to focus on pedagogical issues whereas the Horizon Reports tended to focus on technological aspects in education. In addition to differences between publication types, trends over time are also described. Findings may assist researchers, practitioners, administrators, and policy makers with decision-making in their respective educational areas.
Replenishment: A Musical Narrative Inspired by Sleep
The Replenishment cycle contains five works that allude to the experience of sleep, beginning with awake drowsiness and ending with the piece inspired by rapid eye movement (REM) sleep, titled Conceiving Realities. This last piece is an intermedia work composed for chamber ensemble, live painting with biofeedback, computer, and audiovisual processing. This critical essay describes the composition of Conceiving Realities within the context of the Replenishment cycle, followed by a thorough analysis of the research involved in the technological aspects of the piece, and finally, a description of the instrumentation, notation, intermedia elements, and technology comprising the work. Conceiving Realities uses a system of interactions between painting, biofeedback, music, and video, in which a painter wears brainwave and heartbeat sensors that send data to a computer patch processing the sound of an ensemble as the painter listens and creates the painting while responding to the music. This requires a passive biofeedback system in which the painter is focused on listening and painting. The computer uses the data to process existing sounds, instead of synthesizing new lines. The score blends elements of traditional notation, graphics, and guided improvisation; giving the performers some creative agency. This alludes to the way in which scenarios in dreams occur without voluntary control of the dreamer. Finally, a camera captures the painting and projects three video screens applying individual types of processing to the original video stream, controlled in real time by the amplitude of the ensemble. All these elements create an immersive experience for the audience that is mediated by the interaction of sight and sound.
Listening in the Living Room: The Pursuit of Authentic Spaces and Sound in Dallas/Fort Worth (DFW) Do It Yourself (DIY) Punk
In the Dallas/Fort Worth (DFW) do-it-yourself (DIY) punk scene, participants attempt to adhere to notions of authenticity that dictate whether a band, record label, performance venue, or individual are in compliance with punk philosophy. These guiding principles champion individual expression, contributions to one's community (scene), independence from the mainstream music industry and consumerism, and the celebration of amateurism and the idea that everyone should "do it yourself." While each city or scene has its own punk culture, participants draw on their perceptions of the historic legacy of punk and on experiences with contemporaries from around the world. For this thesis, I emphasize the significance of performance spaces and the sonic aesthetic of the music in enacting and reinforcing notions of punk authenticity. The live performance of music is perceived as the most authentic setting for punk music, and bands go to great lengths to recreate this soundscape in the recording studio. Bands achieve this sense of liveness by recording as a group, rather than individually for a polished studio sound mix, or by inviting friends and fans into the studio to help record a live show experience. House venues have been key to the development of the DFW scene with an emphasis on individual participation through hosting concerts in their homes. This creates a stronger sense of community in DIY punk performance. Through participation observation, interviews, analysis of source materials, as well as research in previous Punk scholarship, questions of authenticity, consumerism, and technology and sound studies, this thesis updates work on the experience of sound, listening, and the importance of space in DIY punk communities today.
Civil Liberties and National Unity: Reaction to the Sedition Act in the Southern States, 1798
The traditional narrative of political party development in the United States of America during the latter half of the 1790s ascribes the decline in popularity of the Federalist Party in the Election of 1800 to that party's passage of controversial legislation, specifically the Sedition Act of 1798, prior to the election. Between the passage of the Sedition Act and the Election of 1800, however, the midterm elections of 1798-1799 transpired and resulted in a significant increase in Federalist popularity in four states – North Carolina, South Carolina, Georgia, and Virginia. This study seeks to ascertain why these four states increased their support for the Federalist Party in 1798-1799, despite the passage of the Sedition Act by the Federalist Party. By examining newspapers and election results, this study analyzes the reaction of these four states to the passage of the Sedition Act and finds that generally, these states did not react strongly against the Sedition Act in the immediate aftermath of its passage. Instead, all four states urged national unity and emphasized the need to support the national government because the United States faced the threat of war with France. This study employs a state-by-state formula to determine each state's individual reaction to the Sedition Act and the Quasi-War, finding that ultimately, the Sedition Act did not have as significant of an impact in these states as the popular narrative holds.
Teaching Observational Learning to Children with Autism: An In-vivo and Video-Model Assessment
Observational learning (OL) occurs when an individual contacts reinforcement as a direct result of discriminating the observed consequences of other individuals' responses. Individuals with autism spectrum disorder (ASD) may have deficits in observational learning and previous research has demonstrated that teaching a series of prerequisite skills (i.e., attending, imitation, delayed imitation, and consequence discrimination) can result in observational learning. We sequentially taught these prerequisite skills for three young children with ASD across three play-based tasks. We assessed the direct and indirect effects of training by assessing OL before and after instruction across tasks and task variations (for two participants) during both in-vivo and video-model probes using a concurrent multiple-probe design. All participants acquired the prerequisite skills and demonstrated observational learning during probes of directly-trained tasks. Generalization results varied across participants. Observational learning generalized to one untrained task for one participant. For the other two participants, observational learning generalized to variations of the trained tasks but not to untrained tasks. Generalization additionally occurred during the in-vivo probes for both participants for whom we assessed this response. Implications of these findings, as well as directions for future research, are discussed.
Shear and Compression Strength of Cold-formed Steel Clip Angles Subjected to Different Screw Patterns
This thesis presents experiments and numerical analysis of the cold-formed steel clip angle in three different limit states which are shear, compression, and combination of the screw connection. A previous cold-formed steel clip angle test program (which is Phase 1) developed design methods for clip angle. Therefore, the object of this thesis is to further investigate the behavior and design methods of loading-bearing cold-formed steel clip angles under different screw pattern. For each limit state, a test program was conducted to investigate the behavior, strength, and deflection of the clip angle. The test result were compared with previous CFS clip angle design method. Amending existing CFS clip angle method were developed by each of the four limit states studied in this project.
The Effectiveness of Peer Mentoring with High School Student Mentors and Child Mentees
This randomized, controlled study examined the effectiveness of two mentoring programs, child mentor relationship training (CMRT) and peer assistance and leadership (PAL®), on high school mentor empathic behaviors and child mentee behavior problems. Participants were 60 young, at-risk students (61.7% male; 38.3% Hispanic/Latino/a, 31.7% Caucasian, 21.7% African American, 8.3% biracial) and 30 high school students (53.3% male; 66.7% Caucasian, 26.7% Hispanic/Latino/a, 0.03% African American, 0.03% Asian). Mentors and mentees were randomly assigned to CMRT or PAL®, which was treatment as usual in the participating school district. Results from 2 (group) by 2 (time) repeated measures ANOVAs indicated compared to the PAL® treatment group over time, mentors in the CMRT group demonstrated statistically significant improvement in empathic behaviors with a large treatment effect, as rated by independent observers. Analysis revealed a moderate treatment effect with CMRT group mentee behavior problems, but the difference was not statistically significant between treatment groups over time. Further analysis revealed the CMRT group demonstrated statistically significant reductions in behavior problems from pre- to post-test with a very large treatment effect. Overall, findings support CMRT as a promising school-based intervention for at-risk young children that potentially increases school counselor efficiency.
Phylogenetic and Functional Characterization of Cotton (Gossypium hirsutum) CENTRORADIALIS/TERMINAL FLOWER1/SELF-PRUNING Genes
Plant architecture is an important agronomic trait driven by meristematic activities. Indeterminate meristems set repeating phytomers while determinate meristems produce terminal structures. The centroradialis/terminal flower1/self pruning (CETS) gene family modulates architecture by controlling determinate and indeterminate growth. Cotton (G. hirsutum) is naturally a photoperiodic perennial cultivated as a day-neutral annual. Management of this fiber crop is complicated by continued vegetative growth and asynchronous fruit set. Here, cotton CETS genes are phylogenetically and functionally characterized. We identified eight CETS genes in diploid cotton (G. raimondii and G. arboreum) and sixteen in tetraploid G. hirsutum that grouped within the three generally accepted CETS clades: flowering locus T (FT)-like, terminal flower1/self pruning (TFL1/SP)-like, and mother of FT and TFL1 (MFT)-like. Over-expression of single flower truss (GhSFT), the ortholog to Arabidopsis FT, accelerates the onset of flowering in Arabidopsis Col-0. In mutant rescue analysis, this gene driven by its native promoter rescues the ft-10 late flowering phenotype. GhSFT upstream sequence was used to drive expression of the uidA reporter gene. As anticipated, GUS accumulated in the vasculature of Arabidopsis leaves. Cotton has five TFL1-like genes, all of which delay flowering when ectopically expressed in Arabidopsis; the strongest phenotypes fail to produce functional flowers. Three of these genes, GhSP, GhTFL1-L2, and GhBFT-L2, rescue the early flowering tfl1-14 mutant phenotype. GhSPpro:uidA promoted GUS activity specifically in plant meristems; whereas, other GhTFL1-like promoters predominately drove GUS activities in plant vascular tissues. Finally, analysis of Gossypium CETS promoter sequences predicted that GhSFT, GhSP, GhTFL1-L1, GhTFL1-L2 and GhBFT-L2 are regulated by transcription factors involved in shoot and flowering development. Analysis of cotton's two MFT homologs indicated that neither gene functions to control shoot architecture. Our results emphasize the functional conservation of members of this gene family in flowering plants and also suggest this family as targets during artificial selection ...
Estimating Thermal Conductivity and Volumetric Specific Heat of a Functionally Graded Material using Photothermal Radiometry
Functionally graded materials (FGMs) are inhomogeneous materials in which the material properties vary with respect to space. Research has been done by scientific community in developing techniques like photothermal radiometry (PTR) to measure the thermal conductivity and volumetric heat capacity of FGMs. One of the problems involved in the technique is to solve the inverse problem, i.e., estimating the thermal properties after the frequency scan has been obtained. The present work involves finding the unknown thermal conductivity and volumetric heat capacity of the FGMs by using finite volume method. By taking the flux entering the sample as periodic and solving the discretized 1-D thermal wave field equation at a frequency domain, one can obtain the complex temperatures at the surface of the sample for each frequency. These complex temperatures when solved for a range of frequencies gives the phase vs frequency scan which can then be compared to original frequency scan obtained from the PTR experiment by using a residual function. Brute force and gradient descent optimization methods have been implemented to estimate the unknown thermal conductivity and volumetric specific heat of the FGMs through minimization of the residual function. In general, the spatial composition profile of the FGMs can be approximated by using a smooth curve. Three functional forms namely Arctangent curve, Hermite curve, and Bezier curve are used in approximating the thermal conductivity and volumetric heat capacity distributions in the FGMs. The use of Hermite and Bezier curves gives the flexibility to control the slope of the curve i.e. the thermal property distribution along the thickness of the sample. Two-layered samples with constant thermal properties and three layered samples in which one of the layer has varying thermal properties with respect to thickness are considered. The program is written in Fortran and several test runs are performed. Results ...