Low-cost sensors have the potential to create dense air monitoring networks that help enhance our understanding of pollution exposure and variability at the individual and neighborhood-level; however, sensors can be easily influenced by environmental conditions, resulting in performance inconsistencies across monitoring settings. During summer 2020, 20 low-cost particulate sensors were deployed with a reference PM2.5 monitor in Denton, Texas in preparation for calibration. However, from mid to late-summer, dust transported by the Saharan Air Layer moved through the North Texas region periodically, influencing the typical monitoring pattern exhibited between low-cost sensors and reference instruments. Traditional modeling strategies were adapted to develop a new approach to calibrating low-cost particulate sensors. In this study, data collected by sensors was split according to a novel dust filter into dust and non-dust subsets prior to modeling. This approach was compared with building a single model from the data, as is typically done in other studies. Random forest and multiple linear regression algorithms were used to train models for both strategies. The best performing split-model strategy, the multiple linear regression models split according to dust and non-dust subsets (combined R2 = 0.65), outperformed the best performing single-model strategy, a random forest model (R2 = 0.49). …

Female collegiate athletes have been identified as a group at risk of developing eating disorders (EDs) and unhealthy weight control behaviors. Interventions grounded in cognitive dissonance theory and those that incorporate mindfulness-based interventions have shown improved body image and reductions in internalization and ED symptomatology over time in female non-athletes. However, few studies have examined the efficacy of intervention programs among female athletes, and, despite early promising results, previous research has been limited in several ways (e.g., methodology, small sample size). The purpose of this study was to conduct a long-term (i.e., three years) qualitative follow-up evaluation of Bodies in Motion (BIM), an ED prevention program developed specifically to acknowledge the unique experience and needs of female athletes with respect to their bodies as women and athletes. Results indicate that, similar to their initial experiences, now-retired athletes reported increased awareness of sport and societal messages and their impact on body image, shifted perspectives in their view of themselves and their bodies, and ongoing use of skills to manage body image in their lives. Further, with the passage of time, athletes continued to report a positive experience in the program and the utility of Bodies in Motion as they navigated challenging …

No published studies to date examined the practices in creation or adoption of metadata in cultural heritage institutions or evaluated metadata in bibliographic databases in the Arabian Gulf counties and assessed its potential interoperability in the aggregation that would provide a central point of access to bibliographic databases of cultural heritage institutions. This exploratory study aimed to address this gap with the goal of: (1) developing understanding of the current state of information representation and knowledge organization in cultural heritage collections in Arabian Gulf countries, and (2) exploring perspectives for future developments such as creating regional large-scale portals similar to Digital Public Library of America, Europeana etc. that facilitate discovery by aggregating metadata and possible barriers to these developments.. The study is focused on a Kuwaiti, Qatari, and Omani libraries, museums, and archives. The mixed-methods research combined semi-structured interviews of the bibliographic database managers at 15 cultural heritage institutions and in-depth content analysis of a sample of 412 metadata records that represent items in these bibliographic databases for accuracy, completeness, consistency, use of knowledge organization systems, etc. This study findings make a research contribution important for evaluating the feasibility and planning of future aggregations of cultural heritage bibliographic databases. Results …

Previous research has incorporated instructive feedback (IF) within mastered listener-by-name trials with two children diagnosed with autism spectrum disorder (ASD). Participants in a previous study acquired the secondary targets and also demonstrated emergent responding (i.e., listener-by-feature, tact-by-feature, intraverbal, and reverse intraverbal). The current study replicated a previous study on IF with two children with ASD. Therapists conducted a series of three sessions of mastered listener-by-name trials (e.g., "Show me otter," and the participant selecting the picture of the otter) and provided IF statements for features of the target stimuli (e.g., "It lives in rivers."). We measured participants' echoic responding and required attending to the target stimulus during IF trials, and we evaluated acquisition of secondary targets and emergent responses using a concurrent multiple probe design across sets. We observed increased correct responding for secondary targets and emergent responses for the first set of stimuli with both participants. However, one participant did not engage in emergent responses for the two remaining sets. Results suggest that related verbal operant response relations of secondary targets may result after IF, but the extent of emergence may be idiosyncratic.

To what extent does Margaret Atwood draw from American slavery to write The Handmaid's Tale? How does Offred's narrative compare with traditional slave narratives, and to what effect? This thesis explores intersectionality (or lack thereof) in The Handmaid's Tale and compares Offred's narrative to traditional slave narratives to find answers to why Atwood chose to draw from American slavery to write her novel in the first place. Offred's narrative is compared to three traditional slave narratives written/orated by three women, Harriet Jacobs, Hannah Crafts, and Mary Prince, to demonstrate how enslavement dehumanizes Offred in similar or different ways to these three women, and to reveal how the enslavement of and violence committed against the female slave body ultimately deforms even the most intimate human relationships in both Gilead and in historical American slavery. I discuss other tactics used to maintain control of the slaves both in Gilead and in historical American slavery, with particular emphasis on the development of justifications for enslavement in both societies. Violence against the body is not enough in Gilead, so Gilead implements religious rhetoric and controls knowledge to maintain its control of the Handmaids. Despite being used to control, religion also becomes a source of …

Managers rely on analytics to make decisions and the choice of the analytical method can influence their decision-making. This dissertation considers three cases and examines how the choice of analytical methods influence interpretations and implications. These areas are communication for health-related information in social media, health information technology investment by hospitals as it relates to patient satisfaction, and health related expenditure policies of countries. These studies develop theoretical models and empirically test them on primary or secondary data, comparing the performance of popular analytical methods. The conduct of these three studies contributes to a better understanding about the choice of analytical methods and allow development of a heuristic approach by offering guidelines for selecting an appropriate methodology. They demonstrate the value of heuristic approaches for use with non-traditional and traditional statistical methods, as the information gained from non-traditional methods (NNs) provides insights into traditional statistical methods, similar to insights gained from exploratory data analysis. The studies also show the value in examining any dataset with multiple methods because they either confirm each other or fail to confirm, providing insights.

This dissertation reexamines the music-theoretical writing of Georg Jospeh Vogler (1749-1814) in light of his educational background. His system, which is often characterized as "awkward" or "self-contradictory," is actually indicative of the rationalist/humanist preferences of Vogler's main source of training: the Jesuit Order. I argue that Vogler's theories and compositional style have been marginalized, partially due to their incompatibility with the more prevalent systems of his era, which were predominantly based in empirical modes of thought.

This study investigated the associations between sleep patterns and singing voice quality in 231 adult singers of various skill levels across the United States. The four-part survey using a general questionnaire on demographics, musical background, vocal health, and three established survey instruments: the Pittsburgh Sleep Quality Index (PSQI), the Singing Voice Handicap Index-10 (SVHI-10), and the Epworth Sleepiness Scale (ESS) found that while scores were worse than normative values for the PSQI and the SVHI-10, a Pearson correlation between the two showed a moderate association. A linear regression also yielded that 8.9% of the variance in SVHI-10 scores could be predicted from PSQI scores. While further research is needed in this area, this study suggests that the amount of sleep needed for an optimal singing voice may be different from the amount needed to feel well-rested for some singers. Moreover, singers may overestimate the influence of sleep on their singing voices.

This research looks thoughtfully and deeply at the relationship between art education and signs, as defined by the French philosopher Gilles Deleuze (1964/1998). Signs, as articulated by Deleuze (1964/1998), are violent disruptions to our way of understanding the world, causing us to think again and/or re-consider what we once knew (or thought we knew). This study looks generatively at how these kinds of disruptive and disorienting moments might be mined for possibilities in art education and remind us of our own relationality. As a post-qualitative lived inquiry, it asks how might art education be-with apprenticeship to signs and what might art education do-with sign-encounters? Using the theoretical lens of transcendental empiricism and new materialism, this study considers how art educators might hold open the space of sign-encounters for oneself and one's students by turning towards the rhizomatic cut and staying with uncertainty. It is focused on the doing-with, making-with, and thinking-with of art, pedagogy, and philosophy/theory, investigating their deep entanglements in spaces of disruption and ultimately developing frame-works for engaging in this kind of work in the classroom. Drawing from Erin Manning and Brian Massumi's theory of research-creation, this research was experienced in an emergent, layered, and complex way over …

There remains a dearth of literature that explains with no ambiguity, the complex relationships that exist between adverse childhood experiences (ACEs) and resilience, as well as school engagement and school in individuals with a co-occurring diagnosis of autism spectrum disorder (ASD) and attention deficit hyperactive disorder (ADHD). This study seeks to fill this missing gap in the literature. These research questions were answered using a retrospective cross-sectional study design of national secondary data from the National Survey of Children's Health (NSCH). The findings revealed that the more ACEs an individual had, the less they were likely to engage and succeed in school. A similar finding was obtained for resilience as individuals with more ACEs showed less resilience. However, counterintuitively to the hypothesis of the project, having both ASD and ADHD does not necessarily make these outcomes worse compared to having a singular diagnosis of either ASD or ADHD. The significance of this study is that it informs rehabilitation counselors as well as educators on the need for early identification of individuals with ASD and ADHD with a background of ACEs and commence interventions early enough to ensure they are more resilient and obtain improved success in school-related activities as well …

From 2011 to 2014, one of the most severe and intense droughts in Texas recorded history led to widespread wildfires across the state, with unknown effects on atmospheric nutrient and pollutant deposition. The objectives of this research were to: (1) characterize the frequency, magnitude, and spatiotemporal distribution of Texas wildfires (2011-2014); (2) identify smoke occurrence and source regions at eight Texas National Atmospheric Deposition Program (NADP) National Trends Network (NTN) sites (2011); and (3) quantify the influence of wildfire on weekly rainwater chemistry and deposition in 2011 at three NADP sites (Sonora, LBJ Grasslands, Attwater Prairie NWR). Data on large wildfires, smoke occurrence, and rainfall chemistry and deposition were coupled with principal component and back-trajectory analysis to address these objectives. Between 2011-2014, 72% of all wildfires occurred in 2011, accounting for 90% of the total area burned. In total, there were 17 extreme wildfires (i.e., in the 95th percentile of hectares burned), of which 11 occurred in 2011. Wildfire activity was concentrated in West Texas ecoregions and consumed primarily shrub/scrub and grassland/herbaceous land cover. Although West Texas experienced the most wildfires, smoke at the NADP locations in 2011, the "high-fire year," was more frequent in East Texas due to regional …

Drawing attention to an under-examined process during organizational socialization, we develop theory to explain how newcomers' new organizational roles and social identities become embedded. The process of identities becoming embedded is influenced by how an individual's preexisting identities interact with new organizational identities during socialization. Perceived harmony relationships among identities indicate if newcomers experience identities interacting in a positive or negative manner generally. Using a network perspective, we suggest that the identity embeddedness of new roles and identities are indicated by: degree centrality in an intrapersonal identity harmony network, perceived harmony with the network itself, and the perceived cost of lacking harmony with a focal identity. Newcomers are likely to be more satisfied and engaged with identities with greater embeddedness as well as find such identities more salient. Organizations can work to embed their employees' new identities through initiating identity work directed towards increasing harmony perceptions among the newcomers' new organizational identities and preexisting identities. Through helping individuals create harmony relationships among identities, organizations can improve socialization outcomes.

Research shows that having an excellent reading teacher in the classroom is key to preventing reading difficulties. However, teachers often feel unprepared to work with students experiencing reading difficulties. This can be problematic in a school that uses a multi-tiered system of support for students in which the classroom teacher is responsible for core instruction and early reading interventions. This qualitative study examined the influences on elementary teachers' instructional and assessment decisions when teaching reading to students who are experiencing reading difficulties. Data were collected through both survey and interviews and were analyzed using thematic analysis. Five themes were identified that suggest teachers' literacy instructional decisions are influenced by administrators, their knowledge of reading instruction, professional development, their beliefs about using data for instruction, and collaboration. Findings from this study provide evidence that teacher decisions are more heavily influenced by forces when teachers lack a deep understanding of their students or of effective literacy instruction. When this happens, teachers' efficacy is also affected, which research shows can affect student outcomes. Teacher decision-making is supported through professional development on effective literacy instruction and use of data for planning. Teacher efficacy improves with opportunities to work with and learn from colleagues and …

This thesis focuses on the recording challenges faced in biomedical systems. More specifically, the challenges in neural signal recording are explored. Instead of the typical synchronous ADC system, a level crossing ADC is detailed as it has gained recent interest for low-power biomedical systems. These systems take advantage of the time-sparse nature of the signals found in this application. A 10-bit design is presented to help capture the lower amplitude action potentials (APs) in neural signals. The design also achieves a full-scale bandwidth of 1.2 kHz, an ENOB of 9.81, a power consumption of 13.5 microwatts, operating at a supply voltage of 1.8 V. This design was simulated in Cadence using 180 nm CMOS technology.

English, Italian, French, German, and Russian songs often appear in the repertoire of Western singers, but only a few singers try to sing Chinese songs. Chinese songs have a wealth of musical material uninterrupted for nearly 10,000 years. However, the lack of clear and correct International Phonetic Alphabet (IPA) makes non-Chinese singers confused and unable to pronounce Chinese accurately. In this study, I have used the IPA that singers are familiar with to change the old version of Chinese IPA, which applied many phonetic transcriptions that are not included in the Western phonetic alphabet and even wrong phonetics. The new version Chinese IPA I created solves the problem of the old version. To demonstrate the practicality of this new IPA version, I have then used this revised IPA in six songs by Zaiyi Lu, who is one of the most outstanding contemporary Chinese composers. His vocal music works are among the finest works of contemporary Chinese art songs. I added Chinese pinyin to the song translation, given a performance guide to introduce the songs' background, IPA with word-by-word translation, poetic translation, singing skills, and emotional expression for both singers and pianists. This study developed a useful tool (new version of …

Fibrinolysis pathway is an important mechanism for dissolution of fibrin clot by the action of plasmin which is formed from plasminogen, a zymogen via the action of plasminogen activators, i.e. tissue plasminogen activator and urinary plasminogen activator. The regulation of fibrinolysis system in vivo is maintained by plasminogen activators and natural inhibitors i.e. α2-antiplasmin, α2-macroglobulin, Thrombin-activatable fibrinolysis inhibitor (TAFI) and plasminogen activator inhibitor 1 and 2 (PAI-1and PAI-2). There are several fibrinolytic assays developed for human plasma but there are no reports describing fibrinolytic assay using zebrafish plasma. In this study, a fibrinolytic assay via using small amount of zebrafish plasma was developed. This assay was performed under different conditions; one by the addition of exogenous tissue plasminogen activator alone to the pooled zebrafish plasma along with calcium chloride and thromboplastin, second Dade ACTIN was used instead of tissue plasminogen activator and third Dade ACTIN along with thromboplastin was used. Epsilon amino caproic acid (EACA), a synthetic antifibrinolytic agent was used at different concentrations to inhibit fibrinolysis successfully. Similar experiments were performed on human plasma as well to check the applicability of the assay to humans and positive results were obtained. Furthermore, knockdown of tissue plasminogen activator and plasminogen genes …

Farmer suicide is at crisis levels in the United States and India. This crisis is both a problem of experiential knowledge within infrastructure as well as a problem of discourse power. I argue that the logical abstraction required to conceptualize and evaluate farmer suicide cannot be separated from the overall experience of farmer suicide. Rather than existing as distinctly separate phenomena, these elements are co-constitutive. Despite the Centers' for Disease Control identification and designation of farmer suicide as complex, statistically relevant, and elevated, nearly all the policy efforts addressing farmer suicide focus on narrow economic impact and narrow economic relief. While these economic vectors are important, the problem is multifaceted and requires a broadening of policy discourse to include additional factors (e.g. philosophical, existential, psychological, etc.). Using Hannah Arendt's work on politics and the human condition, I connect the conditionality of homo faber (human fabricator/maker), animal laborans (laboring animal), and vita activa (active life) with farmer struggle and suicide. Through the work of Georges Canguilhem and Achille Mbembe, I critique and analyze the predominant discourse and framing of suicide as a disease. Last, but not least, I propose decolonial theory and degrowth theory as viable critical pathways to shift the …

This study applies the knowledge, skills, and abilities (KSA) framework for eScience professionals to data service positions in academic libraries. Understanding the KSAs needed to provide data services is of crucial concern. The current study looks at KSAs of data professionals working in the United States academic libraries. An exploratory sequential mixed method design was adopted to discover the KSAs. The study was divided into two phases, a qualitative content analysis of 260 job advertisements for data professionals for Phase 1, and distribution of a self-administered online survey to data professionals working in academic libraries research data services (RDS) for Phase 2. The discovery of the KSAs from the content analysis of 260 job ads and the survey results from 167 data professionals were analyzed separately, and then Spearman rank order correlation was conducted in order to triangulate the data and compare results. The results from the study provide evidence on what hiring managers seek through job advertisements in terms of KSAs and which KSAs data professionals find to be important for working in RDS. The Spearman rank order correlation found strong agreement between job advertisement KSAs and data professionals perceptions of the KSAs.

The method of optical emission spectroscopy has been used with Fe-Ni and other complex alloys to investigate in-situ compositional control for additive manufacturing. Although additive manufacturing of metallic alloys is an emerging technology, compositional control will be a challenge that needs to be addressed for a multitude of industries going forward for next-gen applications. This current scope of work includes analysis of ionized species generated from laser and metal powder interaction that is inherent to the laser engineered net shaping (LENS) process of additive manufacturing. By quantifying the amount of a given element's presence in the electromagnetic (EM) spectrum, this amount can be compared to the actual amount present in the sample via post-processing and elemental dispersive x-ray (EDX) data analysis. For this work a commercially available linear silicon CCD camera captured metallic ion peaks found within the ultraviolet (UV) region to avoid background contamination from blackbody radiation. Although the additive manufacturing environment can prove difficult to measure in-situ due to time dependent phenomena, extreme temperatures, and defect generation, OEM was able to capture multiple data points over a time series that showed a positive correlation between an element's peak intensity and the amount of that element found in the …

Art work, sculpture, installation by artist Jacob Tylor Gibson, as part of an exhibition entitled "From Every Depth of Good and Ill" in the Cora Stafford Gallery, University of North Texas, from April 26 to April 29, 2023.

Art work Oil on Linen by artist Sarah DePetris, as part of an exhibition entitled " Rainbows, Stones & Ghosts (Part II)" in the Cora Stafford Gallery (South), College of Visual Arts & Design, University of North Texas, Denton, Texas, from April 5-8, 2023. Photographed by Stephanie Gerhart.

Art work of oil on linen by artist Sarah DePetris, as part of an exhibition entitled " Rainbows, Stones & Ghosts (Part II)" in the Cora Stafford Gallery (South), College of Visual Arts & Design, University of North Texas, Denton, Texas, from April 5-8, 2023. Photographed by Stephanie Gerhart.

As more Saudi individuals temporarily settle in the United States to pursue higher education, it becomes increasingly important to understand the impact this experience has on their families. The purpose of this qualitative instrumental case study was to examine Saudi mothers' experiences and motivations after transitioning to life in the United States. The main research question was: What are Saudi mothers' experiences of supporting their children maintaining and developing Arabic language skills and Islamic-Saudi identities while they are learning English and Western culture in U.S. schools? The sub-questions of the study were: Why do Saudi mothers in this study want their children to learn the Arabic language and culture? What are their concerns? What are the challenges Saudi mothers face in socializing their children to develop their Islamic-Saudi identity? What practices do mothers use to help their children preserve their Arabic language and develop the Islamic Saudi-identity while growing up in the United States? This study was conceptually framed within the theories of parenting style and acculturation. Participants in the study were five Saudi mothers pursuing higher education in Texas. Data were collected through three semi-structured interviews and four audio journals with each participant, and a focus group with the …

Secondary students with specific learning disabilities often have challenges with academic engagement and performance within the general education setting. Opportunity to respond strategies, such as student response systems, have shown promise in supporting academic engagement for students without disabilities. However, there are few studies examining the relationship between student response systems and academic engagement for older students with specific learning disabilities. The purpose of this study was to pilot the use of Google classroom as a student response system on academic participation and disruptive behavior for high school students with specific learning disability. While the study began as a multiple baseline across participants single-subject research design, the design was changed due to school closures as a result of COVID-19. A high-school student with specific learning disability participated in a study using an AB non-experimental design. The student response system resulted in an abrupt change in academic participation for the participant. The student and teacher perceived the intervention to be effective and appropriate for increasing participation and decreasing disruptive behavior. This study contributes to a limited body of research on student response systems for secondary students with specific learning disabilities.