The purpose of the study was to examine the effects of charter schools on African-American students, this study sought to determine if the practice of connectedness, alignment, rigor, and engagement (C.A.R.E.) influenced academic outcomes. The research methodology employed a meta-analysis in conjunction with a systematic review as a cross-reference and to address variables not covered in the meta-analysis. Utilizing a meta-analysis allowed for a synthesis of the existing quantitative published data to consolidate the results. This produced a specific report of achievement data for African-American students. The results revealed that regardless of region, subject, type of assessment, or school focus charter school do positively influence African-American students' academic outcomes. This study also found the practices connectedness, alignment, rigor, and engagement, the C.A.R.E. model when employed in schools improve academic outcomes, especially when combined and implemented with best practices.

Resistance exercise (RE) training is a well-known and effective method for promoting increases in muscle mass and strength. A single bout of RE induces physiological disturbances that require coordinated activation of the immune system and intramuscular signaling in order to return the tissue to homeostasis and adapt to the RE challenge. On the other hand, acute binge alcohol consumption can affect the immune response to an inflammatory challenge, intramuscular anabolic signaling, and muscle protein synthesis, and the effects of alcohol on these processes are opposite that of RE. Furthermore, individuals who report more frequent exercise also report a greater frequency of binge drinking. However, few investigations exist regarding the effects of binge alcohol consumed after a bout of RE on RE-induced physiological changes and performance recovery. Therefore, the overarching purpose of the investigations contained within this dissertation was to investigate the effect of alcohol consumed after RE on the RE-induced changes in mTOR pathway signaling, muscle protein synthesis, inflammatory capacity, strength recovery, and power recovery. Although RE increased mTOR pathway signaling and inflammatory capacity after exercise and reduced maximal strength and explosive power the day after exercise, we observed no effects of alcohol (1.09 g ethanol∙kg-1 lean body mass, designed …

The purpose of this study was to ascertain student and teacher perceptions of the environment in which student learning takes place and their perceptions of how it has helped them in the cognitive and social domains. Data collected were through student and teacher perception surveys, student and teacher perception questionnaires, classroom observations, student focus group discussions, and teacher interviews. Themes that emerged from the data sources were student interactions, students' autonomy in personalizing their learning space, teacher perceptions of comfort in the classroom, and student perceptions of comfort in the classroom. The findings of this study point to four recommendations for educational leaders to ensure the effective implementation of new and dynamic learning spaces: (1) consult and support teacher and students, (2) provide professional development, (3) visit campuses and other learning spaces, and (4) add color. In order for real change to take place, teachers need to enquire about and embrace student preferences and allow for the discomfort that will be present when trying something new. Teachers must be willing to relinquish control of the learning experience for the student in order to allow for possibilities in personalized learning on the part of the student. They must risk initial failure …

The challenges of at-risk students are not new. Newspaper articles from the 1860s presented information about communities seeking to help students to complete school and find employment to provide a livable wage. Today's solutions focus on legislation intended to affect societal change and provide equitable opportunities for at-risk students. Much research regarding how to improve academic outcomes for at-risk students addresses high school level, identifying those factors that encourage secondary learners to remain in school. However, less work has been done investigating whether earlier intervention can obviate later retention efforts by improving students' learning outcomes in the elementary grades. In this vein, engagement is a factor found to positively influence learning, particularly when students are actively engaged with instructional content. Technology can facilitate such interactions between students and content; however, research is needed to better understand the relationship between student engagement and technology, particularly with at-risk students in elementary settings. Seeking to address the gap, this qualitative study examined the occasion of a fifth-grade school that recently implemented 1:1 technology. Using a case study approach, researchers explored the effects of the 1:1 Chromebook implementation on teacher-perceived student engagement at the elementary level. This study sought to better understand how this …

Achievement motivation theory suggests there are two primary approaches to achievement tasks: to appear competent or to develop a skill. These two different approaches to performance yield different affective and behavioral responses. Athletes holding a performance goal orientation tend to respond to challenges with behaviors exemplifying learned helplessness and increased anxiety. Athletes holding a mastery goal orientation tend to respond to challenges with greater effort and experience less sport-related anxiety. Individual athlete factors, such as grit, mindfulness, and achievement orientation may influence how athletes experience their environment and their levels of sport anxiety, and may interact with athletes' achievement motives to influence performance. I used hierarchical multiple regressions to test the main effects of feedback and mindfulness, and feedback and goal orientation, to determine if either mindfulness or goal orientation moderated the effects of feedback on performance. I also used simple regression to determine the relative predictive strength of mindfulness, grit, and goal orientation on athletes' experience of sport anxiety. Mindfulness, but not goal orientation, was a significant moderator of the feedback-shooting performance relationship, but particularly for athletes low in mindfulness; mastery-goal orientation, independently of feedback, was also a significant predictor of task performance. Mindfulness also emerged as the strongest …

Today's environment is filled with the proliferation of cyber-attacks that result in losses for organizations and individuals. Hackers often use compromised websites to distribute malware, making it difficult for individuals to detect. The impact of clicking through a link on the Internet that is malware infected can result in consequences such as private information theft and identity theft. Hackers are also known to perpetrate cyber-attacks that result in organizational security breaches that adversely affect organizations' finances, reputation, and market value. Risk management approaches for minimizing and recovering from cyber-attack losses and preventing further cyber-attacks are gaining more importance. Many studies exist that have increased our understanding of how individuals and organizations are motivated to reduce or avoid the risks of security breaches and cyber-attacks using safeguard mechanisms. The safeguards are sometimes technical in nature, such as intrusion detection software and anti-virus software. Other times, the safeguards are procedural in nature such as security policy adherence and security awareness and training. Many of these safeguards fall under the risk mitigation and risk avoidance aspects of risk management, and do not address other aspects of risk management, such as risk transfer. Researchers have argued that technological approaches to security risks are rarely …

Factors currently at the forefront of human in vitro fertilization (IVF) that collectively influence treatment success in the form of blastocysts development were investigated during early mammalian embryology with concentration on infertile patients presenting with diminished ovarian reserve or preliminary ovarian failure. A novel experimental technique, Graft Transplant-Embryonic Stem Cells (GT-ESC) was introduced in the mouse model, as the first inclusive approach for embryo selection in IVF treatments resulting in successful graft integration of sibling cells, stage-dependent (day 4) blastocysts. E-Cadherin-catenin bonds play an integral role in trophectoderm cell viability and calcium removal, inducing disruption of cell-to-cell bonds at the blastocyst stage was detrimental to continued blastocyst development. One of the leading methods for embryo selection for uterine transfer in human IVF is application of pre-implantation genetic screening (PGS) methods such as next generation sequencing (NGS). Female patients <35 y do not benefit from this treatment when outcome is measured by presence of fetal heart beats at 10 weeks of gestation. Patients 35-37 y benefit from PGS with no significant difference of outcome based on form of PGS method utilized. Therefore, small nucleotide polymorphism array (snp-array) or targeted-NGS should be selected for this age range to lessen the financial burden …

The unified learning model (ULM) focuses on students' engagement, motivation, prior knowledge, and working memory. This study employs the use of video games to assess students' learning through a 3D chemistry gaming environment. In this human-subjects research, students carried out missions and applied reasoning to solve problems appropriate for general chemistry content. For learning to occur, students must be engaged and motivated as stated in the ULM. Learning cannot necessarily be accomplished by experience alone, and critical thinking is required to turn the experience into learning. The interpretation of educational theory applied to video games and this proposed study are discussed. A moderately positive correlation was found between exam score and study time (playing the game). Essentially the more time spent playing the game or an online activity the higher the exam scores. There was an alpha level less than 0.05 (p < 0.05) between the experimental group and non-traditional group (no game or online activity). Supporting that there was a statistically significant difference between groups, the null hypothesis was accepted between the game and online activity. Furthermore, as stated under the ULM, engagement is necessary for optimal learning.

This study focuses on the use of American Invention Kits from the Smithsonian Institute in conjunction with a 3D printer. In conjunction with a large dataset from a study funded by the National Science Foundation (NSF), this innovative research focuses on the effect the digital fabrication curriculum unit has on gifted and talented students' knowledge and affinity toward the fields of science, technology, engineering, and mathematics (STEM). Students from two rural middle schools in north-central Texas (N = 190) took part in this quantitative study; the students were divided among four subgroups: gifted-contrast (n = 12), gifted-treatment (n = 8), nongifted-contrast (n = 76), and nongifted-treatment (n = 94). The surveys utilized include the STEM Semantics Survey, TIMSS-Limited, and a knowledge assessment for the specific curriculum unit focused on the solenoid. The STEM Semantics Survey is divided into five subsets. Thirty-two separate one-way repeated measures ANOVAs were performed across the surveys and subgroups. Statistically significant results were found on four comparisons. This research holds implications in the areas of advocating for gifted education, collecting field data, utilizing large datasets, and understanding rural schools.

Today linguistic hybridity is often conceptualized as translanguaging. The present study of translanguaging was a linguistic ethnography, which meant investigating cultural issues as well as linguistic practices. The focus was on bilingual speakers of Vietnamese and English, two "named" languages that differ considerably in morphology, syntax, and orthography. This study, conducted over four and a half months, was situated in the Vietnamese Student Organization of a U.S. university, and it included 37 participants. The research was intended to answer two questions: what forms of translanguaging did these bilinguals use? and what reasons did they provide for instances of translanguaging? In capturing the language use of this community, my role was participant-observer, which entailed observing and audio-recording conversations in three kinds of settings: group meetings, social gatherings, and Facebook communications. Additional insights came from discourse-based interviews, focused on instances of translanguaging by 10 individuals. In the group meetings and Facebook conversations, it was conventional for the major language to be English, whereas in the social gatherings it was Vietnamese. My attention in analyzing these interactions was on patterns of translanguaging that occurred within sentences and those occurring outside sentence boundaries. Overall, most translanguaging occurred intra-sententially, as single words from one language …

Who am I? Who are you? Who are we? These are some of the fundamental questions that identity scholars have grappled with since the 1900s when researchers across multiple disciplines first began to theorize about the self, identity, and identification. While the benefits and consequences of singular identities has been largely studied, recent scholars have argued for the importance of multiple identity research, as multiple identities have become increasingly salient to individuals due to societal and organizational changes including globalization and technological advancements. An important phenomenon within multiple identity research is dual identification, of which I explore a specific type– identification with both one's organization and one's profession. Using a three-study, quantitative design spanning two industries, I studied the effects of dual identification and identity conflict on individual psychological outcomes, turnover intentions, and OCB engagement. Findings from these three studies, holistically, indicate that when individuals experience identity conflict between their organizational and professional identities, they experience negative outcomes. These negative outcomes – increased emotional exhaustion, psychological distress, and turnover intentions, in addition to reduced OCB engagement – have important ramifications for the individuals themselves and their organization. However, post-hoc results indicate that dual identification – through the main effects of …

The Deepwater Horizon oil drilling rig exploded on April 20, 2010, off the coast of Louisiana in the Gulf of Mexico. Following the spill, British Petroleum, leaser of the rig, set up a funding institution known as the Gulf of Mexico Research Initiative (GoMRI) to support research and understanding of the spill on the environments and peoples of the gulf. This outreach project was created alongside research of the RECOVER consortium, funded by GoMRI, to communicate what is happening within research labs around the country to understand the effect that the spill had on fish in pelagic and coastal regions of the gulf. The outreach project is composed of a short film (Deepwaters: The Science of a Spill, 18 min) and related outreach materials posted to Instagram (@FishandOilSpills).

The Deepwater Horizon oil spill released millions of barrels of oil into the Gulf of Mexico, impacting economically and ecologically important fishes. Polycyclic aromatic hydrocarbons (PAHs) present in the oil have been shown to cause developmental impairments in early life stage fishes, such as morphological and behavioral changes related to eye formation and visual processing following PAH exposure. Prior research reported reduced eye growth in open water, pelagic species, as well as reduced photoreceptor-specific transcription factors associated with eye development following exposure to crude oil. Though changes in transcriptomic-level pathways associated with vision and visual processing have been reported, it has yet to be determined how these changes relate to physiological or behavioral-level effects in fish. Therefore, the present studies evaluated the effect of weathered crude oil on eye development and visual function in mahi-mahi, red drum, sheepshead minnow, and zebrafish larvae. Fish were assessed through several visually-mediated behavioral assays, analyzed histologically and immunohistologically, along with subsequent transcriptomic analyses and associated gene expression changes. Larvae exposed to crude oil experienced significantly reduced abilities to exhibit optomotor or optokinetic responses relative to controls, with associated reductions in retinal development. Furthermore, genes associated with eye development and phototransduction were downregulated, with subsequent …

Frederick Thurston was a prominent British clarinet performer and teacher in the first half of the 20th century. Due to the brevity of his life and the impact of two world wars, Thurston's legacy is often overlooked among clarinetists in the United States. Thurston's playing inspired 19 composers to write 22 solo and chamber works for him, none of which he personally commissioned. The purpose of this document is to provide a comprehensive biography of Thurston's career as clarinet performer and teacher with a complete bibliography of compositions written for him. With biographical knowledge and access to the few extant recordings of Thurston's playing, clarinetists may gain a fuller understanding of Thurston's ideal clarinet sound and musical ideas. These resources are necessary in order to recognize the qualities about his playing that inspired composers to write for him and to perform these works with the composers' inspiration in mind. Despite the vast list of works written for and dedicated to Thurston, clarinet players in the United States are not familiar with many of these works, and available resources do not include a complete listing. Much of this repertoire remains unexplored and unrecorded yet is suitable for intermediate to advanced level …

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

Robbins' problem is an optimal stopping problem where one seeks to minimize the expected rank of their observations among all observations. We examine random walk analogs to Robbins' problem in both discrete and continuous time. In discrete time, we consider full information and relative ranks versions of this problem. For three step walks, we give the optimal stopping rule and the expected rank for both versions. We also give asymptotic upper bounds for the expected rank in discrete time. Finally, we give upper and lower bounds for the expected rank in continuous time, and we show that the expected rank in the continuous time problem is at least as large as the normalized asymptotic expected rank in the full information discrete time version.

Performance-based contracting (PBC) is an outcome-based product support strategy that provides efficient performance solutions for buyers. Suppliers under performance-based contracting are rewarded after achieving desired performance objectives. While current scholarship has deepened our knowledge of the benefits of PBC, the particular factors behind effective and efficient performance-based contracts (PBCs) are still vague. Thus, this dissertation will focus on essential dimensions for the successful PBC. There remains a great deal that is not understood about the success factors for effective PBCs. When looking at the critical criteria for the selection of suppliers in the context of PBC, even less is known. This dissertation contains three essays with the purpose of: (1) investigating the effect of supply chain collaboration and upfront investments on the benefits of the PBC; (2) exploring supplier selection criteria for successful PBC; and (3) examining the effect of contract length and fleet size on upfront investments for effective and efficient PBC. These three essays offer a solid foundation for theoretical and practitioner understanding for effective PBCs.

Under the unifying theme of supply chain learning, this three essay dissertation extends scholarship by investigating these multi-tier relationships. Theory is emerged, grounded in data, gathered from functioning supply chains in an effort to provide scholars and practitioners with an increased understanding of the SCL phenomena. Essay 1, entitled "Supply Chain Learning: An Exploratory Literature Review" examines the current literature in an attempt to address the shortcomings and emerge areas that have been less explored and less understood. By exposing these areas of research opportunities using a grounded theory methodology, a framework was emerged allowing identification of the limitations of extant literature and providing a springboard for future research. This framework also allowed further investigation into the SCL processes and expansion of the current understanding by providing academia with a comprehensive review of the literature and revealing the shortcomings that exist related to SCL. Using the framework emerged in Essay 1, Essay 2 entitled "Toward Supply Chain Learning: A Focus on the Customers of Logistics Service Providers" explores the rationalization and cognitive processes of senior level executives of firms utilizing national or global supply chains. These respondents are directly engaged in creating, establishing and operating relationships with third party logistics …

Research has shown that well-trained staff within early and intensive behavioral intervention (EIBI) provide more effective treatment. An important part of training is learning the vocabulary and concepts of treatment. This aids in conceptual understanding of the principles and procedures. The process of learning behavioral concepts also develops the necessary verbal repertoire needed to communicate among members of a community of practice; a group of people who have common reinforcers and are working toward a common goal. Learning to tact a series of sequential descriptions, or verbally narrate, exemplary teaching interactions should be a goal when teaching behavior analysis because it is how we, as a community, interact and establish an understanding of behavior analysis. The purpose of the current study is to train novice behavior analysts to narrate exemplary intervention sequences that are responsive, flexible, and effective teaching interactions. The effects of the training were evaluated using a multiple baseline design across training conditions, replicated across 3 participants. The results suggest that the training was effective in increasing the number of narrative statements as well as the number of narrative statements related to five critical features of a teaching interaction and the relations between those features. The results are …

Training parents of a child with autism to increase the frequency of their child's social behavior may improve the quality of parent-child interactions. The purpose of this methodological study was to develop a direct observation method for rapidly sampling social harmony between parents and their toddlers with autism during parent training interactions. The current study used a pre and post probe design, with benchmark comparisons to test the discriminability of the measurement protocol across two sets of data. The first set of data came from pre and post training videos from a parent training program for children with a diagnosis of autism or at risk for a diagnosis. The second set of data came from videos of typically developing toddlers and their parents. The results of the study show that the measurement system differentiated in the level of harmonious engagement between the benchmark sample and the sample including children diagnosed with autism. The results are discussed in the context of future directions and the utility of the measurement system for behavior analytic practices in parent training and other settings where rapport and complex interactional behaviors are an intervention priority.

Software as a service (SaaS) is a primary working pattern and a significant application model for next generation Internet application. Web GIS services are the new generation of the Software as a service that can provide the hosted spatial data and GIS functionalities to the practical customized applications. This study focused on developing a webGIS based application, Soil Moisture-Based Irrigation Scheduling Tool (SMIST), for predicting soil moisture in the next seven days using the soil moisture diagnostic equation (SMDE) and the upcoming seven precipitation forecasts made by the National Weather Service (NWS), and ultimately producing an accurate irrigation schedule based on the predicted soil moisture. The SMIST is expected to be capable of improving the irrigation efficiency to protect groundwater resources in the Texas High Plains and reducing the cost of energy for pumping groundwater for irrigation, as an essential public concern in this area. The SMIST comprised an integration of web-based programs, a Hydrometeorological model, GIS, and geodatabase. It integrates two main web systems, the soil moisture estimating web application for irrigation scheduling based on the soil moisture diagnostic equation (SMDE), and an agricultural field delineation webGIS application to prepare input data and the model parameters. The SMIST takes …

Articulation is an element of musical performance that affects the attack, sustain, and the decay of each sound. Musical articulation facilitates the degree of clarity between successive notes and it is one of the most important elements of musical expression. Many believe that the expressive capabilities of percussion instruments, when it comes to musical articulation, are limited. Because the characteristic attack for most percussion instruments is sharp and clear, followed by a quick decay, the common misconception is that percussionists have little or no control over articulation. While the ability of percussionists to affect the sustain and decay of a sound is by all accounts limited, the ability of percussionists to change the attack of a sound with different implements is virtually limitless. In addition, where percussion articulation is limited, there are many techniques that allow performers to match articulation with other instruments. Still, percussion articulation is often a topic of little concern to many musicians. The problem is not that this issue has been completely ignored, but rather that a vast number of contradictory and conflicting viewpoints still permeate pedagogical methods and literature. This is most certainly the case with the marimba, where a review of method books reveals …

Poly(vinyl chloride)(PVC) wire and cable insulation has poor thermal stability, causing the plasticizer to separate from the PVC chain and produce an oily residue, lowering the tensile elongation at break and thus increasing brittleness. We have added 4 wt.% of three different types of cross-linking agents and antioxidants, as well as mixtures of both, to improve the thermal stability of the plasticizer and tensile properties of PVC after thermal exposure. We performed tensile tests, tribological tests, profilometry, scanning electron microscopy(SEM) and water absorption determination before and after thermal exposure at 136 ℃ for 1 week. After adding the agents, elongation at break increased by 10 to 20 % while the wear rate and water absorption were lower than for the control sample. Less voids are seen in the SEM images after adding these two kinds of agents. The thermal resistance of the PVC cable insulation is best enhanced by combinations of cross-linking agents and antioxidants.

This phenomenological study examined the experiences and perceptions of child-centered play therapists who deliver shortened sessions in the clinic setting. Using the phenomenological analysis procedures based on Moustakas' modified Stevick-Colaizzi-Keen method, a coding team of three doctoral students found 10 themes related to child-centered play therapists' (N = 5) experiences delivering shortened session lengths. Each theme is defined and further described using verbatim transcript examples. This study has practical and clinical implications for child-centered play therapist development and training. The results of this study point to the need for further research in child-centered play therapists' experiences delivering play therapy-as-usual. Finally, future research regarding the change process in child-centered play therapy theory is also implicated.