Crystallographic complex reflection groups are generated by reflections about affine hyperplanes in complex space and stabilize a full rank lattice. These analogs of affine Weyl groups have infinite order and were classified by V.L. Popov in 1982. The classical Braid theorem (first established by E. Artin and E. Brieskorn) asserts that the Artin group of a reflection group (finite or affine Weyl) gives the fundamental group of regular orbits. In other words, the fundamental group of the space with reflecting hyperplanes removed has a presentation mimicking that of the Coxeter presentation; one need only remove relations giving generators finite order. N.V Dung used a semi-cell construction to prove the Braid theorem for affine Weyl groups. Malle conjectured that the Braid theorem holds for all crystallographic complex reflection groups after constructing Coxeter-like reflection presentations. We show how to extend Dung's ideas to crystallographic complex reflection groups and then extend the Braid theorem to some groups in the infinite family [G(r,p,n)]. The proof requires a new classification of crystallographic groups in the infinite family that fail the Steinberg theorem.

The major components of the tracheal system of insects are an extension of the exoskeleton, and the size of the exoskeleton is fixed in the adult stage, so any increase in metabolic demand that may accompany reproduction must be met by a relatively unaltered tracheal system that the female set in place at ecdysis, when entering adulthood. Acute hypoxia tends to elicit an increase in ventilation in insects, and here, I observe increased interburst VCO2 release, and a tendency towards a more continuous gas exchange pattern being preferred over discontinuous gas exchange when Blaptica dubia and Eublaberus posticus are exposed to a descending regime of hypoxia. Additionally, higher temperatures appear to increase sensitivity to hypoxia in these species, an expected result because both species, like most ectothermic animals, display a Q10 effect, increasing metabolic rates as temperature increases. The reproductive mode of B. dubia is considered to be lecithotrophic pseudoviviparity (or type A ovoviviparity), and by the time the embryos are born, they have more than doubles in volume from the time of oviposition. This gain is apparent in the wet mass of the embryo, with no change occurring in dry mass. The egg mass that can be attributed to …

The aim of this study was to validate an instrument that can be used by instructors or social scientist who are interested in evaluating statistics anxiety. The psychometric properties of the English version of the Statistical Anxiety Scale (SAS) was examined through a confirmatory factor analysis of scores from a sample of 323 undergraduate social science majors enrolled in colleges and universities in the United States. In previous studies, the psychometric properties of the Spanish and Italian versions of the SAS were validated; however, the English version of the SAS had never been assessed. Inconsistent with previous studies, scores on the English version of the SAS did not produce psychometrically acceptable values of validity. However, the results of this study suggested the potential value of a revised two-factor model SAS to measure statistics anxiety. Additionally, the Attitudes Towards Statistics (ATS) scale was used to examine the convergent and discriminant validities of the two-factor SAS. As expected, the correlation between the two factors of the SAS and the two factors of the ATS uncovered a moderately negative correlation between examination anxiety and attitudes towards the course. Additionally, the results of a structural regression model of attitudes towards statistics as a predictor …

This thesis presents experiments and numerical analysis of a novel cold-formed steel framed shear wall sheathed with corrugated steel sheets. The objective of this newly designed shear wall is to meet the growing demand of mid-rise buildings and the combustibility requirement in the International Building Code. The strength of the novel shear wall is higher than currently code certified shear wall in AISI S400-15 so that it could be more favorable for mid-rise building in areas that are prone to earthquakes and hurricanes. Full-scale monotonic and cyclic tests were conducted on bearing walls and shear walls under combined lateral and gravity loads. Though the gravity loads had negative effects on the strength and stiffness of the shear wall due to the buckling of the chord framing members, it still shows promise to be used in mid-rise buildings. The objective of numerical analysis is to quantify the seismic performance factors of the newly design shear wall lateral-force resisting system by using the recommended methodology in FEMA P695. Two groups of building archetypes, story varied from two to five, were simulated in OpenSees program. Nonlinear static and dynamic analysis were performed in both horizontal directions of each building archetype. Finally, the results …

It has been well established, in the literature, the association between low health literacy rates and poor health outcomes. With the increase of technology dependence, more people are using the internet to look up health information. Research has shown that shared decision making between providers and patients can improve patients' health outcomes. This research aims to examine whether electronic health (eHealth) literacy impacts patient-provider relationships. This research will also examine how geography specifically state residency impacts eHealth literacy rates. Data collected from a national sampling of online health and medical information users who participated in the Study of Health and Medical Information in Cyberspace (N=710) is used to construct structural equation models from SPSS AMOS v. 20.0. After path analysis, the results shown that white males with higher education were more likely to have higher eHealth literacy rates and that eHealth literacy rates are associated with better self-care, higher patient satisfaction and increased trust in provider. Also, state residency does not have an impact on eHealth literacy rates. eHealth literacy will be significant in patient-provider relationships. Program development should be established on focusing on eHealth literacy across the lifespan. Also, it will be important to review federal policy on technology …

Liquid chromatography-mass spectrometry (LC-MS) based proteomic methods have provided archaeologists with a powerful tool for the discovery and identification of proteins within artifacts. Traditionally, discovery-based methods have utilized a non-targeted full mass scan method in an attempt to identify all proteins present within a given sample. However, increased sensitivity is often needed to target specific proteins in order to test hypotheses. Proteins present within archaeological materials present a unique challenge, as they are often subjected to a variety of chemical transformations both before and after burial. Any preserved proteins will be present within a complex mixture of compounds, and full mass scans often fail to detect less abundant proteins of interest. Consistent and reliable targeted methods are needed to detect protein biomarkers. Taphonomic experimentation was employed as a means to identify the effect of particular processes and conditions on the preservation of mare's milk proteins. In addition, three LC-MS methods were evaluated for their efficiency in identifying mare's milk-specific peptide biomarkers from experimental pottery samples. The ability to reliably detect the presence of these species-specific peptides can help provide evidence about past cultural groups, including the origins of dairying and animal domestication.

A key to a business's success is reaching the target market. This ensures that consumers are exposed to the retailer's offerings and by turn, inspired to purchase. In turn, the business can reach its goal of a profitable organization. The purpose of this paper was to determine the most effective fashion advertising appeals for reaching target markets. To address these issues, this thesis consisted of two studies. The purpose of the first study was to determine the advice given to fashion entrepreneurs regarding effective target market practices. The purpose of the second study was to determine effective advertising strategies fashion entrepreneurs may employ for effectively reaching target markets. Data was collected to test the effectiveness of the advice from Study 1, degrees of brand awareness, attitudes towards advertising, willingness to follow trends, purchase intention, purchase behavior, and shopping involvement. The Theory of Reasoned Action was employed as the theoretical framework of the study. The framework was utilized to predict that attitudes towards targeted advertising and pressure to follow fashion trends would positively relate to intent to purchase which, in turn, would positively relate to purchase behavior. The results of this paper concluded the TRA model provided a proper framework to …

This study aimed to investigate performance of ARM-based computer clusters using two-phase immersion cooling approach, and demonstrate its potential benefits over the air-based natural and forced convection approaches. ARM-based clusters were created using Raspberry Pi model 2 and 3, a commodity-level, single-board computer. Immersion cooling mode utilized two types of dielectric liquids, HFE-7000 and HFE-7100. Experiments involved running benchmarking tests Sysbench high performance linpack (HPL), and the combination of both in order to quantify the key parameters of device junction temperature, frequency, execution time, computing performance, and energy consumption. Results indicated that the device core temperature has direct effects on the computing performance and energy consumption. In the reference, natural convection cooling mode, as the temperature raised, the cluster started to decease its operating frequency to save the internal cores from damage. This resulted in decline of computing performance and increase of execution time, further leading to increase of energy consumption. In more extreme cases, performance of the cluster dropped by 4X, while the energy consumption increased by 220%. This study therefore demonstrated that two-phase immersion cooling method with its near-isothermal, high heat transfer capability would enable fast, energy efficient, and reliable operation, particularly benefiting high performance computing applications where …

Urban areas experience the loss of natural stream channels through conversion to artificial conveyances. This process tends to target headwater and other low order streams. The purpose of this study is to determine the patterns of stream loss in Denton, Texas, and explore the regulatory structure that manages these streams. Historic and current maps and stream data are used to map Denton's streams and categorize them according to their vertical connectivity as: 1) "intact", streams that are open to the atmosphere and connect to groundwater; 2) "concrete", channelized streams open to the atmosphere but cut off from groundwater; and 3) "buried", streams disconnected from the atmosphere and groundwater. A review of federal, state, and local regulatory codes and interviews with local government officials and other stakeholders elucidates stream management in Denton. Results from these analyses reveal high rates of stream loss in the urban center with low rates overall. The federal Clean Water Act and the local Environmentally Sensitive Areas code serve as the primary protective measures for natural streams. These regulations discourage stream impacts through expensive and complex permitting requirements. However the policies allow minor impacts which may cause cumulative effects. This study aims to inform future policy-making decisions …

When US veterans return home from serving their country reintegrating into civilian society is difficult. Adjustment is often associated with mental health stress and personal instability. One of the biggest predictors of successful reintegration is homeownership. The research is in partnership with Dallas Area Habitat for Humanity. The research seeks to explore the challenges veterans face when seeking homeownership.

In response to the main federal K-12 law, the Every Student Succeeds Act (ESSA) and the teacher education program standards, teacher education programs have tried to address social and emotional learning (SEL) content in their curricula. Adding information on SEL alone may not be enough to overcome the shortenings of many existing early childhood programs. The current study attempted to address these shortenings through the inclusion of specialized SEL strategies and sample activities in addition to traditional content on social-emotional learning and development. This study was organized within a quasi-experimental design framework. One hundred thirty-nine preservice teachers were divided between control and treatment groups. The treatment group was exposed to the intervention (i.e. additional/special SEL strategies and activities) in the modified Nurturing Children's Social Competence class, while the control group was in the traditional version of the same class (i.e. traditional instruction with no additional/special SEL strategies and activities). All students were surveyed using the SEL Beliefs Scale for Preservice Teachers and the SEL Knowledge and Attitudes Scales for Preservice Teachers. The surveys were conducted at the beginning and at the end of the semester. An exploratory factor analysis, MANOVA, and descriptive discriminant analysis were used to analyze the data. …

Is there a relationship between science and happiness and, if so, what is it? Clearly, since the Enlightenment, science has increased life expectancy and bodily comfort. Is this happiness, or do humans long for something more? To examine these questions, I investigate the works of Jean-Jacques Rousseau. Specifically, I focus on the Discourses and the Emile, as he states in the Confessions that these works form a whole statement concerning the natural goodness of man. I agree with the literature that finds happiness, for Rousseau, is a sentiment one experiences when their faculties correspond to their desires, as this produces wholeness. In this dissertation, I find a form of modern science is necessary for humans to experience higher forms of happiness. This form of science is rooted in utility of the individual. To fully explain this finding, I begin with Rousseau's concept of being. By nature, our being experiences a low form of wholeness. I show Rousseau's investigation of being exposes a catch-22 situation for developing it to experience higher forms of wholeness. While freedom allows us to develop reason and judgment, we need reason and judgment to properly direct our freedom to perfect our individual being. I then show …

Eggplant Emoji is a documentary film that reveals a range of feminist perspectives on dick pics, sexting and online sexual harassment. Through intimate and hilarious interviews with women between the ages of 22 and 35, the film harnesses a collective voice that speaks back to the large and small ways patriarchy wields power in modern spaces, especially through sending unsolicited dick pics. By intertwining the testimonies of a dynamic group of female storytellers sitting amongst their close friends, the film provides candid and diverse commentary on this unique moment we are in, where the lines between private and public, online and offline are increasingly blurred. Until there are greater consequences, whether legal, social or otherwise, for men disrespecting women's choices and personal space, the domain of sexting is in a self-policing state and women are left to expend emotional labor to let men know why what they sent is unwanted or violating. Ultimately, the subjects' testimonials coalesce to provide suggestions for respectful, consensual sexting practices and fill in the gaps where sex education often neglects the importance of consent and communication altogether.

The interest in complex systems has increased exponentially during the past years because it was found helpful in addressing many of today's challenges. The study of the brain, biology, earthquakes, markets and social sciences are only a few examples of the fields that have benefited from the investigation of complex systems. Internet, the increased mobility of people and the raising energy demand are among the factors that brought in contact complex systems that were isolated till a few years ago. A theory for the interaction between complex systems is becoming more and more urgent to help mankind in this transition. The present work builds upon the most recent results in this field by solving a theoretical problem that prevented previous work to be applied to important complex systems, like the brain. It also shows preliminary laboratory results of perturbation of in vitro neural networks that were done to test the theory. Finally, it gives a preview of the studies that are being done to create a theory that is even closer to the interaction between real complex systems.

Conflict over territory is a major concern to scholars and policymakers, and much of conflict over territory is driven by the issues that make territory more or less attractive, or salient, to states. I examine the impact that tangible and intangible issue salience has on territorial claims, and in particular, how it drives both conflict and conflict escalation. I argue that intangible issues, such as ethnic or religious kin, plays a greater role in driving more severe forms of armed conflict and conflict escalation, compared to tangible factors such as natural resources. This is theorized to be due to the difficulty in dividing territory with intangible elements, as well as domestic political pressure driving leaders to escalate. These suppositions are supported, with the finding that identity plays a particularly crucial and unique role in driving states to more severe forms of armed conflict. Further, I examine how natural resources may be viewed by states by their type and form of utilization, with certain resources likely to be more valuable or strategic to states based on their rarity, concentration, or ease of substitution, based in part on a state's level of development. The results support a fairly uniform role of natural …

Prevalence of physical inactivity in children and adolescents and the associated epidemic of obesity are increasing concerns. U.S. national health statistics indicate early adolescence (i.e., 10-14 years) appears to be a period of importance regarding physical activity, sedentary behavior, health-related physical fitness, and obesity trends. Considering a significant portion of their waking hours are spent in school, it is widely held that schools' should play a significant role in increasing students' physical activity and health-related physical fitness. To do this, physical education in schools focus on providing quality physical education programs that produce physically literate individuals who have the knowledge, skills, and confidence to enjoy a lifetime of health-producing physical activity. In effect, a call for developing a comprehensive and valid measure of physical literacy has been aptly expressed. Thus, the purpose of this dissertation was to test the psychometric properties of proposed models of physical literacy, examine correlates of the physical literacy factor, and investigate the significance of the relationship between physical literacy and interscholastic sport intention via structural equation modeling. Participants were 400 (231 female, 169 male) sixth-grade physical education students who completed three brief surveys assessing maturation, self-efficacy, self-esteem, knowledge and understanding, motivation, physical activity and sport …

The multiple case study investigated levels and types of transfer observed in a K-8 STEM (science, technology, engineering, math) academy in a project-based learning (PBL) environment. The academy was constructed two years prior to the study and conducive to PBL instruction. The students and teachers were in the second year of using PBL in the subject of science at the time of the study. The grade levels observed were second, fourth, and sixth grade and each grade level had three PBL units examined from the beginning to the end of the unit. The nine case studies, from the three different grade levels, were observed to identify Haskell's levels and types of transfer as determined by project requirements, observation of students, completed projects, and student interviews. The findings from this study showed that while projects moved the students beyond knowledge acquisition to application of knowledge in completed projects such as books, films, dances, etc., higher levels of transfer and more types of transfer were not evident. Therefore, based on the results of this study, the evidence of lower levels of transfer suggests that the PBL units, though inventive and potentially valuable to student learning, were not designed for higher levels of …

Commercial viewing was measured by a conjugate arrangement for 1 female and 3 male participants. Reinforcing qualities were evaluated according to screen variations and ratings. Subjects changed the screen clarity via knob pressing either making the screen more or less transparent, translucent or opaque based on commercial interest. Results were conducive to participant attentiveness or indifference to commercial viewing. Experimenter was able to identify the commercials that grasped and maintained the participants' viewing behavior. Conceptually this conjugate arrangement could enhance eye tracking technology to improve marketing and advertising strategies. This experiment yield results that suggest a more concrete analysis of consumer response to visual stimuli that maintains attending.

Recent experimentation with excitation of surface plasmons on a gold film in the Kretschmann configuration have shown what appears to be a superconductive effect. Researchers claimed to see the existence of electron pairing during scattering as well as magnetic field repulsion while twisting the polarization of the laser. In an attempt to explain this, they pointed to a combination of electron-electron scattering in external fields as well as dynamic screening via intense laser radiation. This paper expands upon the latter, taking a look at the properties of a dynamic polarization function, its effects on bulk and surface plasmon dispersion relations, and its various consequences.

Allocation of expensive resources, (such as Multiplier) onto the CGRA has been of interest from quite some time. For these architectural solutions to fulfill the designers' requirements, it is of utmost importance that the design offers high performance, low power consumption, and effective area utilization. The allocation problem is studied using the UntangledII gaming environment, which has been developed at the Reconfigurable Computing Lab at UNT to discover the design of custom domain-specific architectures. This thesis explores several case-studies to investigate the arrangement of functional units and interconnects to achieve a low power, high performance, and flexible heterogeneous designs that can fit for a suite of applications. In the later part, several human mapping strategies of top and bottom players to design a custom domain-specific architecture are presented. Some common trends that were examined while analyzing the mapping strategies of the players are also discussed.

Cannabinoid (CB) receptors have been found in most vertebrates that have been studied. The location of various CB receptors in the body and brain are known, but their physiological functions are not fully understood. The effects CBs have on the cardiovascular system have been of growing interest in recent years. Increasing reports from emergency departments and law enforcement agencies detail acute cardiovascular and psychological effects from synthetic CB intoxication, such as JWH-018. This major health concern is substantiated by governmental agencies like the CDC and NIDA. This pilot study investigates the acute toxic effects of the synthetic CB, JWH-018, on the cardiovascular and neuroendocrine systems in Ictalurus punctatus (channel catfish). Research in organisms besides the traditional mammal models can provide new insights into CB function and physiology. Ictalurus punctatus lend multiple benefits as a model organism that permits researchers to investigate in vivo effects of both cardiovascular and neuroendocrine systems without much influence from traditional sampling methods, and further more provide ample size and tissue to perform specific cardiovascular experiments. Multiple methods were used to assess cardiovascular function and sympathetic nervous system activation. Two different doses, low (500 µg/kg) and high 1,500 µg/kg, of JWH-018 were evaluated in the study. …

This study applied the stages of transformative learning to faculty perceptions and application of best practices to online learning. Research questions included: Can transformative learning theory constructs be used to identify potential barriers in faculty development and delivery of online instruction?; How does the stage of transformative learning of online faculty relate to their perceptions about online learning and their application of best practices?; Is there a correlation between stage of transformative learning and the amount of experience with online instruction a faculty member has? Principal component analysis and cluster analysis support a four-component solution. The four constructs equate to Mezirow's four stages of learning: transforming frames of reference through critical reflection of assumptions, validating contested beliefs through discourse, taking action on one's reflective insight, and critically assessing it. Multiple regression analyses were run to predict faculty perceptions on the identified components. Three of these were statistically significant based on years of experience teaching online, the number of professional development workshops taken on online teaching, or both. While the instrument appears to be a valid measurement of transformation of frame of reference, examination of previously contested beliefs, and critical assessment of action, further efforts will be needed before this is …

In this thesis, I demonstrate how I use leitmotif in a programmatic context in my original orchestral suite, The Legend of Two Rings.

In order to implement more science, technology, engineering, and mathematics (STEM) into K12 classrooms, it is important to find out whether teachers are comfortable with this pedagogy. To determine teachers' current self-efficacy of STEM pedagogy, teachers in a southern state in the United States were asked to enlighten researchers into this phenomenon. Participants were K12 teachers (n = 119) from a public school district undertaking a district-wide STEM initiative. A measure of STEM teacher self-efficacy and a demographic questionnaire were administered online to participants. STEM teacher self-efficacy data were analyzed, along with demographic data, using descriptive discriminant analysis (DDA) and canonical correlation analysis (CCA). Results suggest some demographic variables are more predictive of STEM self-efficacy (gender, grade level taught, feelings of administrative support, and professional development sessions attended) than others (whether or not gifted courses are taught, age, and length of teaching experience. This data should be used by school administrators that seek to begin or improve STEM pedagogy in their schools.