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Assessing Rainfall Interception by Urban Tree Canopies in Denton, Texas

Description: Rainfall interception is one mechanism by which tree canopies can reduce surface runoff in urban areas. The objectives of this research were to: 1) quantify rainfall interception by urban tree canopies, and 2) determine the influence of vegetation and microenvironmental factors on rainfall interception rates. In the city of Denton, Texas, 30 mature post oak (Quercus stellata) and blackjack oak (Quercus marilandica) trees were selected for study. Trees were assigned to one of three categories: clusters of trees on greenspace (CG), isolated trees on greenspace (IG), and isolated trees surrounded by pavement (IP). Throughfall (the volume of water that travels through the canopy and reaches the soil surface) collectors were placed beneath these trees and rainfall collectors were placed in nearby open areas. Throughfall and rainfall were collected daily from 19 March to 4 July. Interception was calculated as the difference between throughfall and gross rainfall. Over the study period, there were 27 days with measurable rainfall; daily rainfall ranged from 1-51 mm. Over the sampling period, rainfall interception for individual trees ranged from -10% to 49%, indicating high spatial variability in interception. Percent interception was highest for the CG treatment (22.7 ± 3.8 SE), intermediate for IG (27.4 ± 2.3 SE), and lowest for IP (9.1 ± 4.9 SE). Factors like wind exposure, wind-driven rain and overall tree health may help explain this variability. This research will contribute to our knowledge of hydrological fluxes in urban areas and the role of urban green infrastructure in stormwater runoff mitigation.
Date: May 2017
Creator: Edington, Patrick

Automated GUI Tests Generation for Android Apps Using Q-learning

Description: Mobile applications are growing in popularity and pose new problems in the area of software testing. In particular, mobile applications heavily depend upon user interactions and a dynamically changing environment of system events. In this thesis, we focus on user-driven events and use Q-learning, a reinforcement machine learning algorithm, to generate tests for Android applications under test (AUT). We implement a framework that automates the generation of GUI test cases by using our Q-learning approach and compare it to a uniform random (UR) implementation. A novel feature of our approach is that we generate user-driven event sequences through the GUI, without the source code or the model of the AUT. Hence, considerable amount of cost and time are saved by avoiding the need for model generation for generating the tests. Our results show that the systematic path exploration used by Q-learning results in higher average code coverage in comparison to the uniform random approach.
Date: May 2017
Creator: Koppula, Sreedevi

Becoming Successful in Education: Beating the Odds, Despite a Background Entrenched in Poverty

Description: The purpose of this study was to investigate the impact of three relationships on academic achievement in mathematics in students of poverty. The three factors that were examined included: teacher-student relationships, parent-student relationships and peer- student relationships. The driving question for the research was as follows: Do external factors such as teacher-student relationships, parent-student relationships and peer-student relationships lead to academic success for students of poverty? The study employed a non-experimental, quantitative approach and utilized longitudinal data from a national database High School Longitudinal Study (HSLS) used a sample of 944 public and private high schools across the USA. A total 0f 28,240 were represented in the survey. Of these 28,240 students, 2641 were used in this study as identified by parental income below the poverty threshold. The outcome of the study indicated that there was little or no correlation between the three relationships and mathematics achievement (academic success). Correlations between the dependent variable (math achievement) and the independent variables even though some were statistically significant their weights had no concrete significance. The study recommends that several initiatives can be instated in schools to support and enhance academic achievement in students of poverty.
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Date: May 2017
Creator: Thompson, Pauline A

Bodies of Evidence: A Qualitative Analysis of the Lived Experiences of Female Central American and Mexican Asylum Seekers in Dallas

Description: This work addresses the experiences of female asylum seekers from Central and Mexico currently living in Dallas, TX. The main purpose is to analyze how these women engage in the gendered processes of both migrating to and accessing legal resources and protection within the United States. As the women move through male-dominated spaces in their home country, the borderlands, and the asylum court they must challenge the patriarchal institutions that attempt to silence their narratives and criminalize their bodies. Their physical wounds become evidence in the courtroom, while outside of the courtroom their movements are monitored and tracked through multiple mechanisms of state control: ankle monitors, detention centers, ICE check-ins. They face intersectional discrimination as they are targeted as both women and immigrants. However, these female asylum seekers are not victims. They constantly display agency as they represent themselves in court, find solace in their faith, and form community with each other.
Date: May 2017
Creator: Kober, Ryan Kylie

Brain Computer Interface (BCI) Applications: Privacy Threats and Countermeasures

Description: In recent years, brain computer interfaces (BCIs) have gained popularity in non-medical domains such as the gaming, entertainment, personal health, and marketing industries. A growing number of companies offer various inexpensive consumer grade BCIs and some of these companies have recently introduced the concept of BCI "App stores" in order to facilitate the expansion of BCI applications and provide software development kits (SDKs) for other developers to create new applications for their devices. The BCI applications access to users' unique brainwave signals, which consequently allows them to make inferences about users' thoughts and mental processes. Since there are no specific standards that govern the development of BCI applications, its users are at the risk of privacy breaches. In this work, we perform first comprehensive analysis of BCI App stores including software development kits (SDKs), application programming interfaces (APIs), and BCI applications w.r.t privacy issues. The goal is to understand the way brainwave signals are handled by BCI applications and what threats to the privacy of users exist. Our findings show that most applications have unrestricted access to users' brainwave signals and can easily extract private information about their users without them even noticing. We discuss potential privacy threats posed by current practices used in BCI App stores and then describe some countermeasures that could be used to mitigate the privacy threats. Also, develop a prototype which gives the BCI app users a choice to restrict their brain signal dynamically.
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Date: May 2017
Creator: Bhalotiya, Anuj Arun

Building an Effective Piano Technique while Avoiding Injury: A Comparison of the Exercises in Alfred Cortot's "Rational Principles of Pianoforte Technique" and Carl Tausig's "Daily Studies for the Pianoforte"

Description: It is the teacher's responsibility to guide students in building an effective and injury-free piano technique. Improper technique, poor training and bad posture at the instrument all may cause problems such as lack of muscle control, weakness, or tension in the hands. Many teachers are interested in finding information about specific exercises dealing with finger strengthening, stretching, and warm-up strategies, as well as guidelines for safe practicing. It is therefore important for both teachers and students to understand how to build a technique from the earliest years of instruction. Carl Tausig (1841-1871) and Alfred Cortot (1877-1962) both contributed to the development of piano technique by writing books that include a significant number of exercises and excerpts. Their books incorporate detailed instructions on how to play each exercise effectively and without fatigue. Subsequently, Heinrich Ehrlich (1822-1899) collected and systematically arranged Tausig's notes, complementing them with detailed information on how to play Tausig's exercises without causing injury. This dissertation compares and contrasts the exercises found in Alfred Cortot's book, Rational Principles of Pianoforte Technique, and Carl Tausig's book, Daily Studies for the Pianoforte. The latter is based on the practical guidebook, How to Practise on the Piano: Reflections and Suggestions, written by Heinrich Ehrlich. Included in this study are references to the performing arts medical literature dealing with pianists' injuries. By comparing two different historical piano methods and considering their effectiveness in light of modern medical performance research, this dissertation aims to help teachers to determine which methods might be better for students to build a solid piano technique without injuring themselves.
Date: May 2017
Creator: Woo, Lae Hyung

Cardiovascular Response to a Behavioral Restraint Challenge: Urge Magnitude Influence in Men and Women

Description: Agtarap, Wright, Mlynski, Hammad, and Blackledge took an initial step in providing support for the predictive validity of a new conceptual analysis concerned with behavioral restraint, defined as active resistance against a behavioral impulse or urge. The current study was designed to partially replicate and extend findings from their study, employing a common film protocol and a procedure for inducing low- and high levels of fatigue. Analyses on key data indicated that the fatigue manipulation was ineffective. On the other hand, they supported the suggestion that behavioral restraint should be proportional to the strength of an urge being resisted so long as success is perceived as possible and worthwhile. Analyses also provided evidence of gender differences for this behavioral restraint task. Women showed relatively enhanced CV responses to my manipulation of urge magnitude, performed less well, rated the behavioral restraint challenge as harder, and rated success on the more difficult behavioral restraint task as more important. A broad indication is that men and women can differ in the strength of impulses they experience in response to stimulus presentations as well as in the importance they place on resisting the impulses.
Date: May 2017
Creator: Mlynski, Christopher

Case Studies to Learn Human Mapping Strategies in a Variety of Coarse-Grained Reconfigurable Architectures

Description: Computer hardware and algorithm design have seen significant progress over the years. It is also seen that there are several domains in which humans are more efficient than computers. For example in image recognition, image tagging, natural language understanding and processing, humans often find complicated algorithms quite easy to grasp. This thesis presents the different case studies to learn human mapping strategy to solve the mapping problem in the area of coarse-grained reconfigurable architectures (CGRAs). To achieve optimum level performance and consume less energy in CGRAs, place and route problem has always been a major concern. Making use of human characteristics can be helpful in problems as such, through pattern recognition and experience. Therefore to conduct the case studies a computer mapping game called UNTANGLED was analyzed as a medium to convey insights of human mapping strategies in a variety of architectures. The purpose of this research was to learn from humans so that we can come up with better algorithms to outperform the existing algorithms. We observed how human strategies vary as we present them with different architectures, different architectures with constraints, different visualization as well as how the quality of solution changes with experience. In this work all the case studies obtained from exploiting human strategies provide useful feedback that can improve upon existing algorithms. These insights can be adapted to find the best architectural solution for a particular domain and for future research directions for mapping onto mesh-and- stripe based CGRAs.
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Date: May 2017
Creator: Malla, Tika Kumari

Catalytic Properties and Mechanical Behavior of Metallic Glass Powders

Description: Lack of crystalline order and microstructural features such as grain/grain-boundary in metallic glasses results in a suite of remarkable attributes including very high strength, close to theoretical elasticity, high corrosion and wear resistance, and soft magnetic properties. By altering the morphology and tuning of composition, MGs may be transformed into high-performance catalytic materials. In this study, the catalytic properties of metallic glass powders were demonstrated in dissociating toxic organic chemicals such as AZO dye. BMG powders showed superior performance compared to state of the art crystalline iron because of their high catalytic activity, durability, and reusability. To enhance the catalytic properties, high energy mechanical milling was performed to increase the surface area and defect density. Iron-based bulk metallic glass (BMG) of composition Fe48Cr15Mo14Y2C15B6 was used because of its low cost and ability to make large surface area by high energy ball milling. AZO dye was degraded in less than 20 minutes for the 9 hours milled Fe-BMG. However, subsequent increase in ball milling time resulted in devitrification and loss of catalytic activity as measured using UV-Visible spectroscopy. Aluminum-based bulk metallic glass (Al-BMG) powder of composition Al82Fe3Ni8Y7 was synthesized by arc-melting the constituent elements followed by gas-atomization. The particle size and morphology were similar to Fe-BMG with a fully amorphous structure. A small percentage of transition metal constituents (Fe and Ni) in a mostly aluminum alloy showed high catalytic activity, with no toxic by-products and no change in surface characteristics. Al-alloy particles, being light-weight, were easily dispersed in aqueous medium and accelerated the redox reactions. The mechanism of dye dissociation was studied using Raman and Infrared (IR) spectroscopy. Breaking of -C-H- and - C-N- bonds of AZO dye was found to be the primary mechanism. Mechanical behavior of individual BMG particles was evaluated by in situ pico-indentation in a scanning electron ...
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Date: May 2017
Creator: Garrison, Seth Thomas

Catastrophe in Permanence: Benjamin's Natural History of Environmental Crisis

Description: Walter Benjamin warned in 1940 of a certain inconspicuous threat to political thinking, not least of all to materialism, that takes progress as an historical norm. Implicit in this conception is what he describes as an empty continuum of time along which the prevailing tradition chronicles its own mythic development and drains everyday life of genuine historical experience. The myth of progressive history advances insidiously today in consumeristic and technocratic attempts at reconciling cultural imagery with organic nature. In this dissertation, I pursue the contradictions of such images as they crystallize around the natural history of twenty-first century commodity society, where promises of ecological remediation, sustainable urban development, and climate change mitigation have yet to introduce a true crisis of historical experience to the ongoing environmental crisis of capitalism. A more radical way of seeing the cultural representation of nature would, I argue, penetrate its mythic determination by market forces and bear witness to the natural-historical ruins and traces that constitute, in Benjamin's terms, a single "catastrophe" where others perceive historical continuity. I argue that Benjamin's critique of progress is instructive to interpreting those utopian dreams, ablaze in consumer life and technological fantasy, that recent decades of growing environmental concern have channeled into the recovery of an experience of the natural world. His dialectics of nature and alienated history confront the wish-image of organic abundance with the transience of its appropriated expression in the commodity-form. Drawing together this confrontation with a varied literature on collective memory, nature, and the city, I suggest that our poverty of experience is more than simply a technical, economic, or even ecological problem, but rather follows from the commodification of history itself. The goal of this work is to reflect upon the potentiality of communal politics that subsist not in rushing headlong into a progressive ...
Date: May 2017
Creator: Bower, Matthew S

Characteristics of Mothers among Counselor Education Faculty

Description: Pre-tenured faculty in higher education and as well as mothers have reportedly struggled with low wellness levels, high demands, little social support, and an imbalance of work and home life. Mothers in higher education and in counselor education have reported struggling with work-life balance, high scholarly productivity, and long hours as well as the emotional and physical energy demands of working with counselors-in-training. A search of the professional literature revealed a paucity of quantitative research regarding demographic characteristics, wellness levels, and social support levels of mothers among counselor education faculty (MCEs). Participants for this study were faculties of counselor education programs recruited from the Holland List of Counseling Programs and from the Council for Accreditation of Counseling and Related Educational Programs online directory. A total of 180 MCEs participated (aged 29-63, with mean age 40.6 years; 83% Caucasian, 8% other, 5% African American, 3% Hispanic, <1% Asian). Results showed that faculty rank did not account for a significant difference among wellness scores of MCEs and that reported social support, tenure or non-tenure track, number of children in the care of MCEs, number of children under age 8, number of publications, and teaching workload accounted for 14% of the variance in wellness levels of MCEs. Specifically, reported higher teaching workload (β = -.194, rs2 = .35, p = .012) and higher social support (β = -.258, rs2 = .36, p = <.001) were found to be significant predictors of lower wellness levels among MCEs, both with small effects. Based on these results, MCEs may benefit from advocating that their departments and universities adapt to their unique needs to improve their levels of wellness and social support through mentoring, which, in turn, may result in not only their own increased productivity but also their students' increased wellness levels.
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Date: May 2017
Creator: Jimenez, Kyrstin Anne

The Civic Roles of Neighborhood Associations in Seoul, Korea: Implications for Urban Governance

Description: This dissertation answers three research questions: "What differences and similarities exist among neighborhood associations in the United States, Japan, and Seoul, South Korea?," "What are the civic roles of neighborhood associations in apartment complexes in Seoul, South Korea?," and "What factors promote neighborhood associations to play civic roles in urban governance?" To answer the first question, this research analyzes the purposes, governance structures, roles, and legal substance of neighborhood associations by reviewing previous studies, public and legal documents, court cases in the U.S., and by conducting interviews. To answer the second and the third questions, a 2016 survey, "Understanding the Roles of Neighborhood Associations in Urban Governance" was conducted with 154 representatives of neighborhood associations in Seoul. Social capital theory, government failure theory, and third party government theory were used to create hypotheses that test proposed relationships about neighborhood interactions, community characteristics, and the civic roles played by neighborhood associations. The findings show that neighborhood associations have adopted several roles including service provider, partner in public service delivery for local government, and advocate for residents in urban governance. The findings also show that social capital created by neighborhood interactions and community characteristics facilitates neighborhood associations to play civic roles in urban governance.
Date: May 2017
Creator: Kim, Jung Wook

A Cognitive Radio Application through Opportunistic Spectrum Access

Description: In wireless communication systems, one of the most important resources being focused on all the researchers is spectrum. A cognitive radio (CR) system is one of the efficient ways to access the radio spectrum opportunistically, and efficiently use the available underutilized licensed spectrum. Spectrum utilization can be significantly enhanced by developing more applications with adopting CR technology. CR systems are implemented using a radio technology called software-defined radios (SDR). SDR provides a flexible and cost-effective solution to fulfil the requirements of end users. We can see a lot of innovations in Internet of Things (IoT) and increasing number of smart devices. Hence, a CR system application involving an IoT device is studied in this thesis. Opportunistic spectrum access involves two tasks of CR system: spectrum sensing and dynamic spectrum access. The functioning of the CR system is rest upon the spectrum sensing. There are different spectrum sensing techniques used to detect the spectrum holes and a few of them are discussed here in this thesis. The simplest and easiest to implement energy detection spectrum sensing technique is used here to implement the CR system. Dynamic spectrum access involves different models and strategies to access the spectrum. Amongst the available models, an interweave model is more challenging and is used in this thesis. Interweave model needs effective spectrum sensing before accessing the spectrum opportunistically. The system designed and simulated in this thesis is capable of transmitting an output from an IoT device using USRP and GNU radio through accessing the radio spectrum opportunistically.
Date: May 2017
Creator: Bhadane, Kunal Ashok Ashok

Collective Security and Coalition: British Grand Strategy, 1783-1797

Description: On 1 February 1793, the National Convention of Revolutionary France declared war on Great Britain and the Netherlands, expanding the list of France's enemies in the War of the First Coalition. Although British Prime Minister William Pitt the Younger had predicted fifteen years of peace one year earlier, the French declaration of war initiated nearly a quarter century of war between Britain and France with only a brief respite during the Peace of Amiens. Britain entered the war amid both a nadir in British diplomacy and internal political divisions over the direction of British foreign policy. After becoming prime minister in 1783 in the aftermath of the War of American Independence, Pitt pursued financial and naval reform to recover British strength and cautious interventionism to end Britain's diplomatic isolation in Europe. He hoped to create a collective security system based on the principles of the territorial status quo, trade agreements, neutral rights, and resolution of diplomatic disputes through mediation - armed mediation if necessary. While his domestic measures largely met with success, Pitt's foreign policy suffered from a paucity of like-minded allies, contradictions between traditional hostility to France and emergent opposition to Russian expansion, Britain's limited ability to project power on the continent, and the even more limited will of Parliament to support such interventionism. Nevertheless, Pitt's collective security goal continued to shape British strategy in the War of the First Coalition, and the same challenges continued to plague the British war effort. This led to failure in the war and left the British fighting on alone after the Treaty of Campo Formio secured peace between France and its last continental foe, Austria, on 18 October 1797.
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Date: May 2017
Creator: Jarrett, Nathaniel W

Coming Out: The Lived Experiences of LGB College Students who Feel Supported by Their Parents

Description: The purpose of this phenomenological study was to explore how LGB college students created meaning out of their coming out process to their parents. I recruited LGB college students who perceived support from their parents during their coming out process and asked the following research question: What are the lived experiences of LGB college students who have experienced support from their parents during the coming out process? Seven White (n = 4), African American (n = 2), and Hispanic (n = 1) college students, three men and four women aged 18-24 years, shared narratives that included time periods before, during, and after their coming out disclosures to their parents. Using an adapted phenomenological analysis, I identified nine major themes: awareness of feeling different, positive relationship with parents prior to coming out, college impacting the coming out process, feeling unsure of how parents would respond to disclosure, parents assuring continued loved and acceptance, parents affirming LGB identity, increased relational depth with parents, increased sense of authenticity, and an appreciation for family's response and support. The findings provide insight into how counselors might work most beneficially with LGB college students and their parents around the coming out process. Opportunities for future research and limitations of the study are discussed.
Date: May 2017
Creator: Price, Eric W

A Community Based Assessment: An Analysis of Community Based Tourism in Kalache and Hulgol, India

Description: This study incorporated a community based assessment with a focus on community based tourism in Kalache and Hulgol, India. Kalache and Hulgol are two agrarian based communities located in the environmentally significant region of the Western Ghats. Each of these communities has considered community based tourism as a means to reduce urban youth outmigration, to diversify economic resources, and to encourage the empowerment of women. The primary goals of this study were to understand the community issues and objectives, to determine the level of support for tourism development, to determine participant attitudes toward tourism, and to determine the obstacles to tourism development. The findings of this project address the complexity of operating in the tourism industry, the impacts of tourism, and the use of community based tourism models in support of sustainable tourism.
Date: May 2017
Creator: Schutz, Michael

Community College Student Retention and Completion based on Financial Expenditures and Hispanic-Serving Status

Description: Despite declining community college funding being allocated increasingly on the basis of student success, U.S. community college student retention and completion rates over the past decade have either remained steady or decreased, especially for Latino students. Using descriptive statistics and multiple regression models with secondary data procured from the Integrated Postsecondary Education Data System (IPEDS), I analyzed student success rates—full time student retention and completion rates—based on community college financial allocations and Hispanic-serving institution (HSI) status. To equitably analyze community colleges in the sample (n = 909), I separated them into four groups based on institutional size as defined by the Carnegie Classification. Descriptive results indicated that instructional divisions spent an average of 43% of the college's total allocated budget—often more than three times the allocated budget of any other division. Regression results indicated that instructional expenditures had the most consistent impact on student success regardless of college size and that scholarship expenditures and academic support expenditures generally had a negative impact on student retention and completion rates. Regarding Latino student success in particular, findings indicated that the manner in which colleges allocated their funds impacted only small and medium-sized community colleges. Of the nine different types of institutional expenditures, only student services expenditures and public services expenditures had a statistically significant impact on Latino student success. Additionally regression analysis indicated that community college HSI status did not have a large impact on overall full-time student retention and completion rates but did have a significant impact on full-time Hispanic student retention and completion rates for all institution sizes. Findings of this study confirmed that HSI status does impact Latino student success in public community colleges. This finding is consistent with prior studies on the positive impact of instructional expenditures on student success rates. Further research on the specific elements within ...
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Date: May 2017
Creator: DaSilva, Jose E.

A Comparative Evaluation of Matrix Training Arrangements

Description: A common goal of instructional techniques is to teach skills effectively and efficiently. Matrix training techniques are both effective and efficient as they allow for the emergence of untrained responding to novel stimulus arrangements, a phenomenon known as recombinative generalization. However, it is unclear which type of matrix arrangement best promotes recombinative generalization. The current study compared two common matrix training approaches, an overlapping (OV) design and a non-overlapping (NOV) design, with respect to arranging relations targeted for training. We conducted a replication evaluation of a Wilshire and Toussaint study, and taught two typically-developing preschoolers compound object-action labels in Spanish and used either an OV or NOV matrix training design. Results from both studies demonstrated the participant trained with an OV design produced recombinative generalization and participants trained with a NOV design produced significantly low levels of emergence or none at all. These results suggest that an OV matrix design facilitates recombinative generalization more effectively than a NOV design. Implications for instructional arrangements are discussed.
Date: May 2017
Creator: Cliett, Terra N

Comparing Media Usage of Binary and Non-Binary Transgender Individuals when Discovering and Describing Gender Identity

Description: This study was conducted through in-depth interviews to examine potential differences between binary-aligned transgender individuals and non-binary individuals in regards to media usage when learning about, articulating, and explaining their gender identity. Results showed numerous differences between transgender people with binary-aligned and non-binary gender identifications in regards to social media preferences and differences in perceived media importance and effects. Additional information was found in regards to the age at which gender identity is articulated and the importance of individuality in comparison to one's gender identity.
Date: May 2017
Creator: Laljer, David B

Composer/Performer Collaboration as Seen in the Solo Piano Part of Percy Grainger's Edition of the Edvard Grieg Piano Concerto in A Minor, Opus 16

Description: The purpose of this document is threefold. First, it demonstrates what Grieg contributes to the musical text compared with the original Peters edition, particularly, those additions that refer to expression, interpretation, and style. Second, this document focuses on presenting Grainger's changes that were approved by Grieg. Third, the document evaluates Grainger's own suggestions for pedaling, hand redistribution and fingering, addition of notes, tempo markings, and other performance guidelines.
Date: May 2017
Creator: Lee, Sung Yo

Consequences of Coworker Bullying: A Bystander Perspective

Description: Previous research on workplace bullying primarily focuses on two main actors – the bully and the victim – while neglecting a third actor: the bystander of the bullying. The prevalence of workplace bullying is increasing across organizations, resulting in more employees becoming subjected to the effects of workplace bullying. Furthermore, witnessing coworker-on-coworker bullying is likely to influence the relationships that the bystander has with the two coworkers involved in the bullying episode. Two areas are proposed to investigate their effect on the coworker bystander: coworker interpersonal justice and personal identification with coworkers. Coworker interpersonal justice involves the perceived fairness between coworkers, while personal identification refers to how these bystanders identify with the specific actors of the bullying event. In addition to work-related outcomes, bystanders are affected at a personal level. That is, being exposed to bullying situations causes these bystanders to alter their anxiety levels and their core affect, with core affect being a precursor to moods and emotions. In addition to the aforementioned outcomes of witnessing a coworker bullying incident, there are also contextual aspects which may influence these relationships. Personal-level factors, such as a bystander's empathy and sense of coherence (i.e., coping mechanisms), may influence the effect of witnessing a coworker being bullied. Similarly, the gender of the victim in relation to the gender of the bystander may also play a role. Using affective events theory, I investigate how witnessing coworker bullying in the workplace effects bystanders. This research employs a 2 x 2 experimental design with multi-wave data collection and an in-person lab session to test the proposed hypotheses. AET is operationalized by creating a fictional coworker bullying situation in which observers are either exposed to the bullying situation or not. This research offers several contributions to the management literature as well as to practitioners. First, it ...
Date: May 2017
Creator: Medina, Michele Nicole

Construct Validation and Measurement Invariance of the Athletic Coping Skills Inventory for Educational Settings

Description: The present study examined the factor structure and measurement invariance of the revised version of the Athletic Coping Skills Inventory (ACSI-28), following adjustment of the wording of items such that they were appropriate to assess Coping Skills in an educational setting. A sample of middle school students (n = 1,037) completed the revised inventory. An initial confirmatory factor analysis led to the hypothesis of a better fitting model with two items removed. Reliability of the subscales and the instrument as a whole was acceptable. Items were examined for sex invariance with differential item functioning (DIF) using item response theory, and five items were flagged for significant sex non-invariance. Following removal of these items, comparison of the mean differences between male and female coping scores revealed that there was no significant difference between the two groups. Further examination of the generalizability of the coping construct and the potential transfer of psychosocial skills between athletic and academic settings are warranted.
Date: May 2017
Creator: Sanguras, Laila Y

A Constructional Approach to Establishing and Maintaining Calm Canine Behavior

Description: Very few behavior-change programs with canines produce effects that persist beyond the training condition. The present study is an experimental demonstration of a constructional program that established calm patterns of behavior as alternatives to hyperactive ones. Three dogs that exhibited hyperactive patterns were chosen as subjects. Seven conditions common to canine-caretaker relationships were used to determine which factors resulted in the hyperactive patterns. Then, sitting and lying down were taught as beginning points using touch as a reinforcer. The final behavior, maintained by naturally occurring reinforcers, was established errorlessly. The study used a control-analysis strategy of behavior change with a changing-criterion design. The intervention resulted in an immediate reduction in hyperactivity and an increase in sitting and lying down for all dogs.
Date: May 2017
Creator: Owens, Chase

A Content Analysis of Medical School Problem-Based Learning Cases

Description: Problem-based learning (PBL) was developed for use in medical education to incorporate more active, learner-centered instruction. Central to problem-based learning is the problem, which in medical education is usually case a case presentation, revealed in stages to allow learners to form and research learning objectives. The purpose of this study was to identify themes present across the PBL cases, including the patient-centeredness of the cases. Content analysis was used to examine 62 PBL cases that comprised the first and second years' core curriculum at a public medical school. The cases included a patient population similar to the local population, but care was more hospital-centric than would be expected from the actual patterns of medical utilization in the United States. Analyzing along two axes of patient-centeredness, the PBL cases demonstrated a good understanding of the patient (knowing the patient), but other qualities such as shared decision making was not as exemplified. Medical educators can use the results to understand elements that contribute to patient-centeredness and apply the analysis framework to evaluate future cases.
Date: May 2017
Creator: Kinkade, Scott Edward