One schedule of reinforcement that is used to decrease the rate of a target behavior is differential reinforcement of low rates (DRL). During this schedule, reinforcement is delivered for a target response if it occurs after a certain amount of time has passed since the last instance of this target response. The current study used a table-top game called PORTL and college student participants to investigate how collateral patterns develop and are disrupted during DRL schedules. After the participant developed a collateral pattern of behaviors with the objects, the researcher removed one of the objects that was part of the pattern and waited for a new pattern of behaviors to develop. Once the participant developed a new collateral pattern, the researcher removed a second object. This continued until there was only one object present. Results showed that the rate of reinforcement decreased following the removal of each object, then slowly increased as a new pattern developed.

The Austrian army played a crucial role in Napoleon's decisive defeat during the War of the Sixth Coalition. Often considered a staid, hidebound institution, the army showed considerable adaptation in a time that witnessed a revolution in the art of war. In particular, changes made after defeat in the War of the Fifth Coalition demonstrate the modernity of the army. It embraced the key features of the new revolutionary way of war, including mass mobilization, a strategy of annihilation, and tactics based on deep echelonment, mobility, and the flexible use of varied formations. While the Austrians did not achieve the compromise peace they desired in 1814, this represented a political failing rather than a military one. Nevertheless, the Austrian army was critical in securing the century of general European peace that lasted until the dawn of the Great War.

This paper examines the concept of safety as it encompasses the personal and technological spheres as imagined by a group of active duty service members, veterans, a police officer, and civilians, as well as the agency exercised by those with military or police backgrounds when it comes to safety technology. A group of seventeen individuals took part in a battlefield simulation to test a wearable junctional tourniquet created by ARMR Systems, LLC, an innovative advancement in tourniquet technology. After the simulation, participants were interviewed, surveyed, and took part in a focus group to determine not only product suitability but also to explore the underlying reasons for their recommendations for product changes. Results showed that those with military or police background performed safety rituals prior to duty and exercised agency in the desire to obtain the best possible personal safety devices and technology to be used for themselves and their comrade-in-arms. All participants expressed concerns for their safety in regards to technology in general, specifically, the hacking and use of personal data and what is perceived as lack of governmental oversight. Almost all of the changes to improve product safety, comfort, and utility were adapted. The topics discovered during the course …

When governments are unable or unwilling to provide necessary relief to communities, local faith-based congregations (FBCs) step in and fill the gap. Though shown to provide for so many needs following disaster, FBCs have largely been left out of the institutional emergency management cycle. The aim of this study was to explore the role of FBCs in the disaster response and recovery process and investigate how recovery impacts FBCs. The primary objective of this study is to gain a better understanding of FBCs and how to better integrate them into the formal emergency management process.The main questions were as follows: First, what is the role of FBCs during the disaster recovery process? Second, how do FBCs change (temporarily and permanently) during disaster recovery, and what factors may promote or inhibit change? To answer these questions, qualitative semistructured interviews were held to develop a case study of Katy, Texas and its recovery from Hurricane Harvey of 2017. The applied and conceptual implications resulting from this study, which apply to FBCs, researchers, emergency managers, and policy makers, highlight the opportunity to better incorporate FBCs formally into emergency management practices.

Members of Greek Life organizations consume more alcohol and participate in risky drinking behaviors at higher rate than their non-Greek counterparts due to deep rooted social norms within this population. Undergraduate sorority women at college and universities are often overlooked in research regarding trends in alcohol use in Greek Life organizations. However, women between the ages of 18 and 24 are more vulnerable to the consequences of heavy alcohol use compared to men, including liver disease, sexual assault, poor academic outcomes and post-collegiate alcohol use disorders (AUDs). Although higher education institutions are tasked with educating their students about safe alcohol use and protecting students from harm, these interventions are often inadequate in decreasing alcohol related consequences. Among students, sorority women consistently consume higher amounts of alcohol and exhibit higher rates of risky drinking behavior. This thesis aims to examine the unique alcohol-related consequences and risk factors sorority women face. Implications are discussed to guide college administrators, counselors and other supports that are likely to encounter issues associated with alcohol use within this population.

Online fandom communities exist as a hub of subcultural construction for people across the globe. For queer people, fandom represents a space to safely converge over mutual interests. Previous research has focused on queer fans and popular music fans independently, often taking a pathological approach. This study qualitatively examines queer participants in the Katy Perry fandom through surveys and one-on-one interviews. The theoretical backbone of the study is built around uses and gratifications theory, seeking to understand motivations for fandom participation. The concepts of the heteronormative matrix and queer resistance are additionally incorporated to analyze how LGBTQ+ fans combat societal norms. This research found seven motivations for queer fans to participate in online fandom, providing insight into an understudied community.

This work examines the lynching of twelve female victims in Texas from 1885 to 1926.

The appeal of moral panic studies, a once very popular sociological subfield, dropped precipitously around the turn of the century due in large part to debates about disproportionality, the notion a panicked group's concern about a perceived threat exceeds that warranted by its objective harmfulness. Classic theorists claim disproportionality is a panic's essential criterion and that it can be demonstrated by comparing a group's concerned reaction to the available facts. Critics argue it is a value-laden, ideologically tainted construct and often claim it cannot be demonstrated because there are no authoritative facts. These debates were and still are fraught with confusion. Perplexingly, both sides assume a shared definition despite clearly assessing the proportionality of different aspects of the relevant reaction. A typology differentiating the potential types of disproportionality either does not exist in the moral panic literature or remains shrouded in obscurity. In this paper, I review the classic theories, their critiques, and a new postmodern moral panic theory. By juxtaposing the different foci of the orthodox and contemporary theories, I derive a much-needed disproportionality typology. I also develop a new framework through which to assess moral panics predicated on this typology. My hope is these developments will stimulate a …

Sangpuy Katatepan Mavaliyw is a Taiwanese Aboriginal pop artist of the Pinuyumayan ethnic group. His albums have been acclaimed by Aboriginal listeners and Han-Taiwanese mainstream music critics for capturing the traditional Aboriginal sound and evoking the presence of the ancestors. In this thesis, I explore why Sangpuy's songs are understood to evoke ancestral spirit imaginary using a semiotic approach. I compare his music to traditional Pinuyumayan music such as pa'ira'iraw and shamanic songs to demonstrate how he uses similar musical gestures to evoke the sense of ancestral spirits. Other sonic elements such as the inclusion of the soundscape of a Pinuyumayan village provides a direct link to the lived experiences of the Pinuyumayan. I also position Sangpuy's music in the broader context of nationalism in Taiwan and how Sangpuy uses his music to negotiate Aboriginal issues such as land rights and environmentalism. Through this analysis, I demonstrate how Taiwanese Aborigines are incorporating their Indigenous ideology into popular music to carve out a space for themselves in Taiwanese society and garner more support for Indigenous rights in Taiwan.

The current study explored how the variability or lack thereof in interlocking behavioral contingencies (IBC) may be brought under contextual control. Four undergraduates (two dyads) students participated in the current study. Dyads were instructed to play a game on a computer screen with the goal to earn as many "Congratulations" as possible. An ABABAB reversal design was used. A Lag 1 schedule of cultural consequence delivery for IBC topography was set in the variability (VAR) condition. During the repeated (REP) condition only one IBC topography was reinforced. For one of the two dyads, the variability of IBC topography was brought under contextual control. It is important to explore the behavioral processes at the cultural level to understand prediction and control of cultural phenomena.

In this paper, I sought to identify and develop a protocol on electrode arrays as a result of rapid aging by applying rapid current over time. We, however, apply a different approach by using phosphate buffer solution (PBS) to mimic the conditions of the body. Here we have established an in vitro protocol for accelerated aging, a process that involves testing in extreme conditions such as oxygen, heat, sunlight, humidity, and vibration aimed at speeding the normal aging process of items; on commercially available shape memory polymer electrode arrays from Qualia over a period of 30 days in PBS. Two electrode arrays were placed in 37°C and 2 were placed in 57°C. Open lead electrochemical impedance spectroscopy (EIS) was conducted on the electrode arrays. Overall, the results showed there were differences in average impedance during this accelerated aging protocol. At 37°C we see that the average impedance values increased as the electrodes were aged at 1kHz from an average of 4.15E6 to 9.14E6 Ohms. At 57°C electrode arrays 4 and 5 showed strong P values well above 0.05, but average impedance increased drastically from 3.27E6 to 9.97E6 and P value of 0.04 from measurement day 24 to day 30. This …

Synthetic biology is a rapidly growing field that aims to treat cellular biological networks in an analogous way to electrical circuits. However, the field of plant synthetic biology has not grown at the same pace as bacterial and yeast synthetic biology, leaving a dearth of characterized tools for the community. Due to the need for tools for the synthetic plant biologist, I have endeavored to create a library of well-characterized TATA box variants in the cauliflower mosaic virus (CaMV) 35S promoter using the standardized assembly method Golden Braid 2.0. I introduced single nucleotide changes in the TATA box of the CaMV 35S promoter, a genetic part widely used in plant gene expression studies and agricultural biotechnology. Using a dual-luciferase reporter system, I quantified the transcriptional strength of the altered TATA box sequences and compared to the wild-type sequence, both in transient protoplast assays and stable transgenic Arabidopsis thaliana plants. The library of TATA-box modified CaMV 35S promoters with varying transcriptional strengths created here can provide the plant synthetic biology community with a series of modular Golden Braid-adapted genetic parts that can be used dependably and reproducibly by researchers to fine-tune gene expression levels in complex, yet predictable, synthetic genetic circuits.

The FeCo-V alloy, commercially referred to as Hiperco, is known for its great soft magnetic properties. However, the high cost of production has limited the usage of this alloy to small-scale applications, where the small volume and high magnetic performance are critical. Additive manufacturing (AM) has the potential to solve the production problems that exist in Hiperco manufacturing. The present research has focused on selective laser melting (SLM) based AM processing of Hiperco. The goal was to perform a detailed examination of SLM processed Hiperco and determine how the process parameters affect the microstructure, mechanical and magnetic properties. While a systematic set of SLM process parameters were employed, the results indicate that the energy density was quite similar for this set of process parameters, resulting in similar properties. Overall, the saturation magnetization (Ms) values were very good, but the coercivity (Hc) values were very high, in the case of all as SLM processed conditions. Additionally, a large variation in porosity was observed in the as SLM processed samples, as a function of process parameters. Interestingly, long-term heat-treatments of these samples in an Ar+H2 atmosphere resulted in substantial decreases in the Hc values. These results are presented and discussed.

The corrosion resistance under elevated temperature of additively manufactured 316L stainless steel made by directed energy deposition was studied. Test samples were prepared in a hybrid additive manufacturing machine using standard deposition parameters recommended by the manufacturer. Control samples were cut from wrought material to compare the results. The test was performed under a corrosive atmosphere with a solution of water with 3.5 % in weight of salt (NaCl). The total duration of the test was 635 hours, divided in five stages of 12, 24, 48, 226, and 325 hours to analyze the samples between each stage. The samples were analyzed quantitatively measuring weight loss and surface topography, and qualitatively by macroscopic inspection with digital photography, and microscopic inspection with optical and scanning electron microscopy. The results show a higher corrosion rate for the additively manufactured samples compared to the control samples. An evident increase in the size of pits initially present on the samples was observed and quantified on the additively manufactured. Although the additively manufactured samples were more aggressively attacked by corrosion, they still presented a shiny surface finish at the end of the test, reinforcing the idea of the formation of a passive oxide layer and suggesting …

Yttria stabilized zirconia (YSZ) is a polymorph with possible phase transformation toughening occurring during impact. The fractography and mechanical properties of laminated alumina and YSZ were studied in this thesis. Five sample types were studied in this thesis: (5:5) Al2O3/YSZ (a sequence of 5 alumina tapes stacked on 5 YSZ tapes), (5:5) Al2O3/YSZ (1 wt.% Pure ZrO2), (7:3) Al2O3/YSZ, Al2O3, and YSZ. Scanning electron microscopy (SEM) and X-ray microscopy (XRM) were used to study morphology and crack propagation with three-point tests performed to study the flexural strength. X-ray diffraction (XRD) spectra of all samples pre and post three-point tests were examined to determine if a change in monoclinic zirconia occurred. The combination of SEM and XRM data found microcracks in the YSZ layers of Al2O3/YSZ laminates with none present on YSZ laminates, leading to the conclusion tensile stress was performed on YSZ during sintering with Al2O3. Fracture patterns show a curving of cracks in Al2O3 layers and abrupt, jagged breaks in YSZ layers with crack forking at major YSZ microcrack regions. YSZ laminates were found to have the highest average flexural strength, but a very high standard deviation and low sample count and Al2O3 laminates having the second highest flexural …

Digital language archives are used for the preservation of documented language data, such as video and voice recordings, transcriptions, survey data, and ethnographic fieldnotes. This data is most often used for research and linguists and anthropologists are generally heavily involved in the creation of language archives. Ideally, Indigenous communities that are represented in the archives are also able to access their data, but this is not always the case, especially if poor internet access and lack of technological know-how prevent archive use. In addition, western epistemologies are embedded in archival logics, exacerbating the issues surrounding Indigenous access and pointing to the need for a decolonizing archival design that centers the needs of its users. Using ethnographic research methods and a decolonizing framework, I conducted a usability study on the Archive of the Indigenous Languages of Latin America (AILLA) to uncover the cultural-based meanings that inform AILLA use. Using linguistics and anthropology listservs, I recruited research participants for a Qualtrics survey and conducted semi-structured interviews that explore the user perspective on AILLA. I analyzed AILLA's Google Analytics data and used qualitative and quantitative research methods to build upon the previous literature in user-centered design approaches to language archives. As one of …

Disaster science is a procedural field often construed as producing blanket policies that attempt to cover everyone, but the complexity of human lived experiences must have a space to exist within disaster science if its research and findings are to be effective. This thesis illustrates that disaster policies and publications often leave out the most vulnerable communities—those in greatest need of collective support. Through critically analyzing beautification through green space, discussing photovoice interviews, and by deconstructing public preparedness documents published by Harris County Office of Homeland Security and Emergency Management (HCOHSEM), it is clear that accumulation by dispossession filters down through not only property and money but also access to green spaces and a healthy life. By dispossessing low-income communities of their right to green spaces and life, those communities end up in places that are environmentally dangerous, leaving them at a disadvantage in the disaster preparedness and recovery process. This thesis serves as a case study highlighting how HCOHSEM failed to provide low-income communities with assistance prior to, during, and after Hurricane Harvey. The lessons from these gaps in protective measures show that public policies need to be malleable to ensure residents of any community are covered. Though no …

In this study, I analyze the relationship between sexual permissiveness and affiliation with a fundamentalist religion and how this relationship has changed over time. I first consider previous research that reviews how religious affiliation, religiosity, and religious fundamentalism shapes sex attitudes and, therefore sexual permissiveness. I then review existing studies that discuss what factors influence permissiveness toward different sexual behaviors. Next, I discuss the mechanisms of religious institutions that influence sexual permissiveness. Prior literature motivates my research question as there is a lack of studies that explore sexual permissiveness across religious affiliations. This study fills a void in the existing literature by exploring the gap in sexual permissiveness between religious affiliations and how that gap has changed over time. After considering the current literature, I introduce a hypothesis exploring the relationship between sexual permissiveness and affiliation with fundamentalist religion. This study performs OLS regression using secondary data from the General Social Survey (GSS) that describes respondents' religiosity, religious affiliation, and attitudes towards sex. The study's findings show that affiliation with more fundamentalist groups is significantly correlated with more conservative sex attitudes reflecting lower levels of sexual permissiveness. The results also suggest that the gap in sexual permissiveness between those that …

This study was a replication and an extension of the 2021 research performed by Spurgin and Borquez on the correspondence between receptive and expressive behavior. Spurgin examined the role of the echoic in a hear-say procedure with adult learners, while Borquez examined the role of the echoic in both hear-say and see-say procedures. Both studies found that receptive and expressive correspondence did not occur consistently across participants. The present study asked if the fading steps used during training contributed to the results of the previous researchers. In the present study, the fading steps were changed to minimize the chance that the participant developed a position bias. The conditions were also counterbalanced to analyze the effects of hear-say vs. see-say, easy vs. difficult words, and the order in which the words were trained on the acquisition of receptive labels and the emergence of expressive labels. The study consisted of five phases: pre-training, hear-say teaching, see-say teaching, receptive testing, and expressive testing. Results indicated that although that acquisition of receptive labels improved, the change in fading steps did not make a significant difference in the correspondence of receptive and expressive language. Results showed similar correspondence in the hear-say and see-say procedures. Easy …

This was a mixed-method user-centered study regarding the University of North Texas's student-owned learner record and credentialing system. Through methods of quantitative and qualitative inquiry, student perceptions were unearthed and recommendations to improve the system were provided.

Broadly defined, group testing is the study of finding defective items in a large set. In the medical infection setting, that implies classifying each member of a population as infected or uninfected, while minimizing the total number of tests.

Historical dress as a museum theater and research process encompasses material, technological, and cultural experiences from the past in the present. This research examines how intimate experiences with heritage materials, processes, and environments may impact development of educator pedagogy. Historical attractions in the US draw visitors due in part to providing guests with context for the objects and built environments displayed. New Materialist theory offers insights into how inanimate objects and environments "teach" human and non-human entities in their own right. Using a New Materialist lens, I observed, interviewed, and conducted participant observations through a novel research methodology, intra-active narrative inquiry, with costumed museum educators to better discern how relations between humans and historical materials intra-act as embodied experiences of object knowledge in museum pedagogy.

Multiple contributors to neurocognitive impairment in individuals with sickle cell disease have been identified. Research indicates that a history of cerebrovascular accidents, such as silent infarcts and strokes are associated with greater cognitive decline among children with sickle cell disease. Additionally, disease effects such as hemoglobin and hematocrit levels significantly effect cognitive performance among this population and should be taken into consideration when examining neurocognitive impairment. Further, previous studies show a significant relationship between child behavior problems, family functioning, and cognitive performance in children with sickle cell, marking those as important targets for intervention among this population. While cognitive decline with increased age is not typically examined in healthy child populations, some research indicates the presence of age effects in those with SCD. A majority of the literature addresses cognitive impairment from a broad perspective, while a limited number of studies have begun to address effects among specific cognitive domains. Using archival data from the National Institutes of Health's Cooperative Study of Sickle Cell Disease, results revealed that disease severity was negatively correlated with some aspects of cognitive functioning, including visual-spatial domains. Additionally, some measures of cognitive performance were inversely correlated with age. Consistent with hypothesized outcomes, family functioning was …

A projective plane tropical curve is a proper immersion of a graph into the real Cartesian plane subject to some conditions such as that the images of all the edges must be lines with rational slopes. Two important combinatorial invariants of a projective plane tropical curve are its degree, d, and genus g. First, we explore Gathmann and Markwig's approach to the study of the moduli spaces of such curves and explain their proof that the number of projective plane tropical curves, counting multiplicity, passing through n = 3d + g -1 points does not depend on the choice of points, provided they are in tropical general position. This number of curves is called a Gromov-Written invariant. Second, we discuss the proof of a theorem of Mikhalkin that allows one to compute the Gromov-Written invariant by a purely combinatorial process of counting certain lattice paths.