Hauntology Man, a 48-minute documentary, follows former UNT Professor, Dr. Shaun Treat, as he leads a walking ghost tour of downtown Denton, Texas. As the expedition moves from storefront to storefront, each stop elicits a new tale. But, as Dr. Treat points out, the uncertainties of history are the real ghosts. That is, rather than simply presenting a "haunted history" of Denton, it's more accurate to say this movie's center resides at the precipice of a "haunting history." Not all ghost stories need spectres. Sometimes not knowing is ghost enough.

The rapid advancement of web and mobile application technologies has recently posed numerous challenges to the Software Engineering community, including how to cost-effectively test applications that have complex event spaces. Many software testing techniques attempt to cost-effectively improve the quality of such software. This dissertation primarily focuses on that of hybrid test suite prioritization. The techniques utilize two or more criteria to perform test suite prioritization as it is often insufficient to use only a single criterion. The dissertation consists of the following contributions: (1) a weighted test suite prioritization technique that employs the distance between criteria as a weighting factor, (2) a coarse-to-fine grained test suite prioritization technique that uses a multilevel approach to increase the granularity of the criteria at each subsequent iteration, (3) the Caret-HM tool for Android user session-based testing that allows testers to record, replay, and create heat maps from user interactions with Android applications via a web browser, and (4) Android user session-based test suite prioritization techniques that utilize heuristics developed from user sessions created by Caret-HM. Each of the chapters empirically evaluate the respective techniques. The proposed techniques generally show improved or equally good performance when compared to the baselines, depending on an …

Using a phenomenological approach, this qualitative study examined the perspectives of Latino parents and their involvement in the decision of their child to enroll in an advanced mathematics course in sixth grade. Since enrollment in Algebra I in high school is said to be a strong predictor of college attainment and with the growing number of Latino students across the nation, this study has the potential to help district and campus leaders establish whole-school systems for communicating with Latino parents to encourage their children to enroll in advanced mathematics courses at earlier grades. Participants in this study included four sixth-grade students enrolled in an advanced mathematics course, four enrolled in regular mathematics, their mother or father, two mathematics teachers, a school counselor, and two district administrators. Data analyzed included audio recordings of semi-structured interviews of each of the participants. The findings suggested that the district has proactively developed a systematic process of creating that includes six data points to create a student profile of students that will do well in advanced mathematics. This process is helping the district close the gap between total Latino school enrollment and the enrollment of Latino students in advanced mathematics. The findings also suggested that …

Cardiovascular activities may increase the brain blood flow improving neuronal activities leading to improved cognition. Consequently, the effects of an acute bout of moderate intensity aerobic exercise on brain hemodynamics and its correlation with cognitive color-word Stroop task performance were tested. The Stroop tasks were congruent (color matches word) and incongruent (color does not match word). Prefrontal (PFC) and motor cortex (MC) blood flow was recorded by fNIRS (functional near-infrared spectroscopy) while the subject was performing the Stroop tasks before and after the 30 minutes of exercise or equivalent time of rest controls (checking for practice effects). Ninety human subjects of age 24± 6, 20 ADHD (attention-deficit hyper-activity disorder), 27 High-BMI (>25), 29 males were recruited. Reaction time ‘RT' decreased (p<0.05) after exercise for both the congruent (12%) and incongruent (10%) Stroop tasks, compared to 8% with practice alone. Accuracy did not change after practice or exercise. HR changes after exercise correlated (p<0.05) with better accuracy and faster RT for the incongruent Stroop task. In general, a metabolic lag occurred in the neuronal deoxy- hemoglobin (Hb) signals behind the systemic oxy-Hb signals. PFC showed the highest effect sizes of Stroop task-responsive systemic hemodynamic changes compared to baseline irrespective of rest …

The purpose of this study was to explore athletic identity, identity foreclosure, and career maturity in a sample of undergraduate college students currently enrolled in kinesiology and physical education classes at a university in the southern United States. Students were provided with an internet link that requested them to complete a demographic survey, the Athletic Identity Measurement Scale (AIMS), the foreclosure subscale of the Extended Objective Measure of Ego Identity Status, and the Attitude Scale (Form A-2) of the Career Maturity Inventory. Examination of the Pearson moment correlations indicated that the higher the sport participation during high school, the greater the athletic identity and identity foreclosure, and lower the career maturity attitudes. ANOVAs were performed to examine differences between males (n = 123) and females (n = 183), kinesiology (n = 181) and non-kinesiology majors (n = 125), and white (n = 144) and non-white students (n = 162) on athletic identity, identity foreclosure, and career maturity. Results showed that males scored significantly higher on athletic identity and identity foreclosure, and significantly lower on career maturity than females. Kinesiology students had scores significantly higher on athletic identity and identity foreclosure, and lower on career maturity. Finally, individuals that identified their …

One of the challenges of utilizing higher frequencies in the RF spectrum, for any number of applications, is the hardware constraints of analog-to-digital converters (ADCs). Since mid-20th century, we have accepted the Nyquist-Shannon Sampling Theorem in that we need to sample a signal at twice the max frequency component in order to reconstruct it. Compressive Sampling (CS) offers a possible solution of sampling sub-Nyquist and reconstructing using convex programming techniques. There has been significant advancements in CS research and development (more notably since 2004), but still nothing to the advantage of everyday use. Not for lack of theoretical use and mathematical proof, but because of no implementation work. There has been little work on hardware in finding the realistic constraints of a working CS system used for digital signal process (DSP). Any parameters used in a system is usually assumed based on stochastic models, but not optimized towards a specific application. This thesis aims to address a minimal viable platform to implement compressive sensing if applied to a wireless sensor network (WSN), as well as address certain parameters of CS theory to be modified depending on the application.

This thesis presents the implementation of some of the basic concepts of digital logic design in a fun and creative way with the help of paper electronics. This involves circuit building on paper using conductive tape or conductive ink and circuit components as electronics craft materials. Paper electronics toolkit called circuit sticker microcontroller which is deployed by a company named Chibitronics and AT89C51 microcontroller were used for the computational functioning of the circuits built on paper. This can be used to teach the fundamentals of digital logic design to the students in their early stage of studies in an attractive way and can help them them gain a better understanding. This thesis can also be helpful in grabbing the attention of high school students and motivate them towards choosing the engineering discipline for their higher studies.

Soil moisture information can be used accurately in determining the timing and amount of irrigation applied to plants. Pan and Pan et al. proposed a robust and simple daily diagnostic equation for estimating daily soil moisture. The diagnostic equation evaluates the relationship between the soil moisture loss function and the summation weighted average of precipitation. The loss function uses the sinusoidal wave function which employs day of the year (DOY) to evaluate the seasonal variation in soil moisture loss for a given year. This was incorporated into the daily diagnostic equation to estimate the daily soil moisture for a location. Solar radiation is an energy source that drives the energy and water exchanges between vegetation and the atmosphere (i.e., evapotranspiration), and thus impacts the soil moisture dry-down. In this paper, two parameters (the actual solar radiation and the clear sky solar radiation) are introduced into loss function coefficient to improve the estimation of soil moisture. After the Introduction of the solar radiation data into soil moisture loss function, a slight improvement was observed in the estimated daily soil moisture. Pan observed that generally the correlation coefficient between the estimated and the observed soil moisture is above 0.75 and the root …

Acrolein is produced endogenously after traumatic brain injury (TBI) and is considered a primary mechanism for secondary damage occurring after TBI. We are using frontal cortex networks derived from mouse embryos and grown on microelectrode arrays in vitro to monitor the spontaneous activity of networks and the changes that occur after acrolein application. Networks exposed to acrolein exhibit a biphasic response profile. An initial increase in network activity, followed by a decrease to 100% activity loss in applications ≥ 50 µM. In applications below 50 µM, acrolein was not toxic but generated activity instability with coordinated but irregular population busts lasting for up to 6 days. The increase in activity preceding toxicity may be linked to a decrease in free spermine, a free radical scavenger that modulates Na+, K+, Ca+ channels as well as NMDA, Kainate, and AMPA receptors. Action potential wave shape analysis after 20 and 30 µM acrolein application revealed a concentration-dependent 15-33% increase in peak to peak amplitude within minutes after exposure. For the same concentrations of acrolein (50 µM), the time required to reach 100% activity loss (IT100) was longer in serum-free medium than in medium with 5% serum, in which IT100 values were reduced by …

To supplement earnings reported under generally accepted accounting principles (GAAP), public companies often voluntarily report alternative measures of earnings called non-GAAP earnings (NGE). These companies assert that NGE exclude the effect of non-recurring transactions, thereby helping users of financial information to better assess the company's past performance and prospects. Because NGE measures are not well defined, managers can exploit the inherent discretion in calculating NGE to mislead users. Prior studies provide arguments and evidence on the informative as well as opportunistic use of NGE. However, the studies have examined the characteristics and informativeness of NGE with a focus on U.S. companies. The results of studies that consider the NGE disclosure by U.S. companies may not be generalizable to the cross-listed companies because foreign financial reporting standards are different from the U.S. GAAP. Further, prior studies report a difference in earnings quality of U.S. firms and cross-listed firms, which can also result in a difference in the informativeness of their NGE. To fill this gap in literature, I examine whether the informativeness of NGE of cross-listed companies is different from that of U.S. companies. This study contributes to the debate on the informativeness of NGE. It provides evidence that in general, …

The push for electronic devices on smaller and smaller scales has driven research in the direction of transition metal dichalcogenides (TMD) as new ultra-thin semiconducting materials. These ‘two-dimensional' (2D) materials are typically on the order of a few nanometers in thickness with a minimum all the way down to monolayer. These materials have several layer-dependent properties such as a transition to direct band gap at single-layer. In addition, their lack of dangling bonding and remarkable response to electric fields makes them promising candidates for future electronic devices. For the purposes of this work, two 2D TMDs were studied, MoS2 and MoTe2. This dissertation comprises of three sections, which report on exploration of charge lifetimes, investigation environmental stability at elevated temperatures in air, and establishing feasibility of UV laser annealing for large area processing of 2D TMDs, providing a necessary knowledge needed for practical use of these 2D TMDs in optoelectronic and electronic devices. (1) A study investigating the layer-dependence on the lifetime of photo-generated electrons in exfoliated 2D MoTe2 was performed. The photo-generated lifetimes of excited electrons were found to be strongly surface dependent, implying recombination events are dominated by Shockley-Read-Hall effects (SRH). Given this, the measured lifetime was shown …

Although the recent annual growth rate in the US paramedic field has been 4%, Latino and African American men have been significantly underrepresented in the field compared to their proportion in the US population at large. This problem threatens both the quality and quantity of available emergency health care. The purpose of this study was to describe how men of color (MOC) in community college paramedical programs experienced their awareness, interest, and proactive choice of paramedicine as a course of study. Using a qualitative phenomenological approach and social cognitive career theory as a theoretical framework, I interviewed 23 MOC enrolled during one semester across three community college paramedical programs in the southwestern US: 9 Latino and 14 African American, aged 18-29 with mean age 22 years. The focus of the interviews was the participants' lived experiences at various career points, as well as the enablers and disablers they had encountered. I identified three primary themes for possible use in enhancing recruitment of MOC to the paramedic field: strategic use of new digital media, promotion of the vocation's quasi-familial characteristics, and augmentation of neighborhood-based outreach. Identified areas for further research included recruitment dynamics of female paramedics, MOC persistence issues, and MOC …

My experiment concerned the influence of chronobiological (circadian) rhythm on fatigue, effort, and cardiovascular (CV) response. It evaluated responses of morning people (Larks) presented an easy or difficult recognition memory task at a time congruent or incongruent with their rhythm. Based on an extension of a conceptual analysis of fatigue influence, my central prediction was that circadian rhythm would combine interactionally with task difficulty to determine effort and associated CV responses. Specifically, effort and associated CV responses were expected to be (1) positively correspondent to task difficulty in the morning (stronger where difficulty is high), but (2) negatively correspondent to difficulty in the evening (stronger where difficulty is low). Preliminary results showed concerning gender effects on difficulty appraisal of the task, thus we examined women and men's data separately. CV findings for women were broadly, but not completely, consistent with predictions. Analyses revealed no group differences in CV response for Lark men.

Isolating novel phages using Streptomyces azureus, which produces antibiotic thiostrepton, as a host, and characterizing the genomes may help us to find new tools that could be used to develop antibiotics in addition to contribute to the databases of phages and specifically, Streptomyces phages. Streptomyces phages Alsaber, Omar, Attoomi, Rowa, and ZamZam were isolated using during this study. They were isolated from enriched soil and sequenced by Illumina sequencing method. They were isolated from three different geographical regions. They are siphoviridae phages that create small clear plaques with a diameter of approximately 0.5-1 mm, except for Rowa which has cloudy plaques, and they have varied sizes of their heads and tails. ZamZam was not characterized at this time. The sequencing shows that they are circular genome with 3' sticky overhang and various genomes' sizes with high percentage of GC content with the average of 66%. Alsaber was classified under sub-cluster BD3, while Omar was categorized under sub-cluster BD2. They share the same cluster of Cluster BD. Rowa was placed in Cluster BL and Attoomi is currently a singleton that does not fit into an established cluster. Alsaber yields 76 putative genes with no tRNA, Omar 81 putative genes with 1 …

John Ireland is one of the most important British composers of the twentieth century. Many scholars believe the works of his early period were deeply influenced by Brahms. After graduating from the Royal College of Music, Ireland went on to develop a much more individual musical language, with influence from contemporary French composers. However, the young composer found himself confronted with the challenge of finding a new and personal style without turning wholly to impressionism or to chromaticism. In Ireland's Piano Sonata, Ireland adopted several of Brahms' compositional techniques. This piano sonata is an excellent example of one of Ireland's mature works that still demonstrates Brahms' influence.

This qualitative multiple case study aims to describe the experiences of two Black women who chose to leave the classroom and transition to other roles within the field of education. Using metaphorical analysis, this study employed the four-capital theoretical framework. This framework connects human capital, structural capital, social capital, and positive psychological capital as factors related to teacher attrition and retention. This study illustrates how the participants' experiences fit into the four-capital theoretical framework and highlights the metaphors the participants use to describe their transition. The researcher conducted two semi-structured open-ended interviews in which the participants were asked to describe their experiences in the classroom as well as their experiences in their new positions. The researcher analyzed the metaphors used by the participants and categorized their responses based on the four capitals. The identified metaphors offered a vivid description of the participants' experiences. The results indicated that although the experiences of the participants are similar to those found throughout the literature, the four-capital theory helps describe their experiences more holistically. Rather than having isolated reasons for leaving the classroom, the attrition of the participants can be explained by examining the interconnectedness of the various capitals. These findings suggest that teacher …

This dissertation analyzed court decisions in injuries on school grounds cases under the Louisiana Governmental Claims Act. The question addressed was: How have the Louisiana courts interpreted the Louisiana Governmental Claims Act in litigation against Louisiana school districts and their employees? The intent of this study was to show how Louisiana's legal system has evolved, and how that evolution affected tort cases involving school boards and school board employees. Doctrinal legal research was the methodology used to answer the research question. To limit the number of cases analyzed, this study only focused on tort claims involving injury on school property. In order to gain a broad perspective, tort claims cases filed prior to the 1974 Louisiana Constitution, cases filed after the 1974 Louisiana Constitution, and cases filed after the 1995 Louisiana Liability Limits Amendment, and the Louisiana Governmental Claims Act of 1996 were analyzed. By analyzing the tort claims brought against Louisiana school districts and employees during the various time-periods, it was clear to see how the case rulings reflected the frequent changes of the Louisiana Constitution and its' laws. In the end, the state continued to control who could sue them and how much they would pay in damages.

This article describes how the 3Dhotbed project (an acronym for “3D Printed History of the Book Education”) harnesses maker culture to advance book history instruction by providing open-access 3D data through a digital library platform.

This document is part of a series of white papers on various copyright issues. Fair use is a powerful tool for people who want to use and expand on copyrighted works. Fair use is special among the other copyright exceptions because it isn’t specifically targeted at one kind of use. Instead, fair use is purposely open ended to permit many different kinds of uses. One downside of this however, is that it can be difficult for anyone — lawyer and nonlawyer alike — to figure what is/isn’t fair use under the law. This white paper attempts to review the fair use statute, go over its famous “four factor test,” and offers some suggestions about how to think through each part.

This thesis documents the grammatical processes and semantic impact of innovative ways to pejoratively reference individuals through adjectival nominalization. Research on nominalized adjectives suggests that when meanings shift from having one property (1) to becoming a kind with associated properties (2), the noun form often encodes stereotypical attributes: [1] "Her hair is blonde." (hair color); [2] "He married a blonde." (female, sexy, dumb). Likewise, the linguistic phenomenon of genericity refers to classes or kinds and different grammatical structures reflect properties in different ways. In 1 and 2 above, the shift from adjectival blonde to indefinite NP a blonde moves the focus from the definitional characteristic to the prototypical. Similarly, adjectival gay [3] is definitional, but the marked, nominal form [4] adds socially-based conceptions of the "average" gay (example from Twitter): [3] jesus christ i make a joke and now im a gay man? (sexuality) [constructed]; [4] jesus christ i make a joke and now im a gay? … (flamboyant, abnormal). To investigate innovative reference via nominalization, two corpus studies based in human judgment were conducted. In the first study, a subset of the corpus (N=121) was annotated for pejoration by five additional linguists following the same guidelines as the original …

This dissertation examines the effects of micro-level inequality on political preferences and voting behavior.

Act one of The Metamorphosis is based on the novella by Franza Kafka of the same title. In the writing of the act, George Benjamin's Into the Little Hill and Oliver Knussen's Where the Wild Things Are provide a model of using musical material as a storytelling device. Benjamin emphasizes the parallel nature of Crimp's text through the manipulation of similar music between the acts. Knussen uses form and color to emphasize Max's childlike energy and his desire to return home. In act one of The Metamorphosis these approaches are combined to enhance Kafka's absurd narrative through a rapid collage of texture and form that is influenced by both events and characters in the opera.

This paper presents a discussion of functional silence in contemporary classical music with a particular focus on the music of Salvatore Sciarrino and Jürg Frey, two composers whose drastically-contrasting bodies of work both occupy the interstitial space between the audible and inaudible. To begin, I address three main questions: what are the functions of silence in a musical context, how do the characteristics of a work affect our perception of these silences, and how do these functions relate to our perception of music on the edge of silence. In answering these first two questions, I discuss three categories of silence---temporal, spatial, and gestural---which I use in a silence-centric analyses of Sciarrino's Let me die before I wake, Allegoria della notte, and Infinito Nero, as well as Frey's Streichquarttet III. To further apply these concepts to music on the edge of silence, I provide a fourth category---timbral silence---which describes the perception of absence or silence within the presence of sound and allows for the application of existing functional principles of silence to sounding events. In turn, this allows us to understand the music of Sciarrino and Frey in terms of timbral completion and timbral dissolution, respectively. Having established a theoretical framework …

The dwindling supply of castrati created a crisis in the opera world in the early 19th century. Castrati had dominated opera seria throughout the 18th century, but by the early 1800s their numbers were in decline. Impresarios and composers explored two voice types as substitutes for the castrato in male leading roles in serious operas: the contralto and the tenor. The study includes data from 242 serious operas that premiered in Italy between 1800 and 1840, noting the casting of the male leading role for each opera. At least 67 roles were created for contraltos as male heroes between 1800 and 1834. More roles were created for tenors in that period (at least 105), but until 1825 there is no clear preference for tenors over contraltos except in Naples. The Neapolitan preference for tenors is most likely due to the influence of Bourbon Kings who sought to bring Enlightenment values to Naples. After the last castrato retired in 1830 and the casting of contraltos as male heroic leads falls out of favor by the mid-1830s, the tenor, aided by a new chest-voice dominant style of singing, becomes the inheritor of the castrato's former role as leading man in serious Italian …