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Poly(phenylene methylene) (PPM) is a multifunctional polymer featuring hydrophobicity, high thermal stability, fluorescence and thermoplastic processability. Accordingly, smart corrosion resistant PPM-based coatings (blend and copolymer) were prepared and applied by hot pressing on aluminum alloy AA2024. The corrosion protection properties of the coatings and their dependence on coating thickness were evaluated for both strategies employed. The accelerated cyclic electrochemical technique (ACET), based on a combination of electrochemical impedance spectroscopy (EIS), cathodic polarizations and relaxation steps, was used as the main investigating technique. At the coating thickness of about 50 µm, both blend and copolymer PPM showed effective corrosion protection, as reflected by |Z|0.01Hz of about 108 Ω cm2 over all the ACET cycles. In contrast, when the coating thickness was reduced to 30 µm, PPM copolymer showed neatly better corrosion resistance than blended PPM, maintaining |Z|0.01Hz above 108 Ω cm2 with respect to values below 106 Ω cm2 of the latter. Furthermore, the analysis of many electrochemical key features, in combination with the optical investigation of the coating surface under 254 nm UV light, confirms the intrinsic self-healing ability of the coatings made by PPM copolymer, contrary to the reference specimen (i.e., blend PPM).

This doctoral project explores the relationship between Catholic school culture and teacher burnout within the context of Catholic secondary schools in the state of Texas. While the subject of teacher burnout has gotten considerable attention in educational research, there is very little research on the specific relationship between school culture and teacher burnout within a Catholic secondary school setting. The goal of this study is to address this gap of knowledge by examining how the quality of culture, unique to Catholic schools, impacts teacher burnout. Utilizing a problem-based learning approach, this dissertation employs a survey designed to measure the quality of culture and the level of burnout experienced by faculty. The survey uses both quantitative and qualitative survey items to gather information from faculty currently employed in a Catholic secondary school. The research covers the distinctive elements of Catholic school culture: mission and vision, academic excellence, service, community and collegiality, and belonging and inclusion. It also covers the subscales of teacher burnout, identified by Seidman & Zager (1986): career satisfaction, perceived administrative support, coping with job-related stress, and attitudes towards students. Through an analysis of the survey data, the study seeks to determine if there is a correlational relationship between the quality of culture with a Catholic school and the level of burnout experienced by teachers. Additionally, it explores the ways which school leaders might help to mitigate the level of burnout by improving the quality of culture within their schools. The findings of this research contribute to a deeper understanding of teacher burnout within the context of Catholic schools and provide valuable insights for school leaders, administrators, and policymakers. By shedding light on the relationship between Catholic school culture and teacher burnout, this doctoral project offers a foundation for the development of strategies aimed at fostering healthier work environments for teachers in Catholic secondary schools in Texas and potentially beyond.

This doctoral project explores the relationship between Catholic school culture and teacher burnout within the context of Catholic secondary schools in the state of Texas. While the subject of teacher burnout has gotten considerable attention in educational research, there is very little research on the specific relationship between school culture and teacher burnout within a Catholic secondary school setting. The goal of this study is to address this gap of knowledge by examining how the quality of culture, unique to Catholic schools, impacts teacher burnout. Utilizing a problem-based learning approach, this dissertation employs a survey designed to measure the quality of culture and the level of burnout experienced by faculty. The survey uses both quantitative and qualitative survey items to gather information from faculty currently employed in a Catholic secondary school. The research covers the distinctive elements of Catholic school culture: mission and vision, academic excellence, service, community and collegiality, and belonging and inclusion. It also covers the subscales of teacher burnout, identified by Seidman & Zager (1986): career satisfaction, perceived administrative support, coping with job-related stress, and attitudes towards students. Through an analysis of the survey data, the study seeks to determine if there is a correlational relationship between the quality of culture with a Catholic school and the level of burnout experienced by teachers. Additionally, it explores the ways which school leaders might help to mitigate the level of burnout by improving the quality of culture within their schools. The findings of this research contribute to a deeper understanding of teacher burnout within the context of Catholic schools and provide valuable insights for school leaders, administrators, and policymakers. By shedding light on the relationship between Catholic school culture and teacher burnout, this doctoral project offers a foundation for the development of strategies aimed at fostering healthier work environments for teachers in Catholic secondary schools in Texas and potentially beyond.

Synchrotron based experiments of quantum coupled states reveal a delicate balance of energy levels facilitating the Mott driven antiferromagnetic state responsible for High Temperature Superconductivity (HTSC). High resolution spectroscopic experiments including Angle Resolved Photoemission (ARPES), Resonant Elastic X-ray Scattering (REXS), X-ray Natural and Magnetic Circular Dichroism (XNCD & XMCD) are used to investigate the Cuprate, Iridate, and Rutheno-Iridate systems. Highly correlated Mott driven systems producing the antiferromagnetic Cuprate and Iridate series of layered perovskites are perturbed using doping and temperature to elucidate the correlation of states within the materials. Similar to the Cuprate HTSC, the Rutheno-Iridate system undergoes a phase segregation of magnetic domains resulting in Sr3IrRuO 7 where ARPES measurements reveal a temperature and momentum dependent pseudogap. Electronic band structure investigations yield a Fermi surface with gap parameters similar to extended s-wave symmetry. Additional observations of a p-wave symmetry centered at the (π, π) scattering vector within Fermi surface maps provide evidence for long range magnetic coupling.

Arthritis can bring with it not only pain, suffering, and physical limitations, but also a negative impact on employability, and even financial hardship. Over 46 million American adults have self-reported, doctor-diagnosed arthritis. Over a third of these individuals have limitations due to arthritis. Arthritis can bring with it not only pain, suffering, and physical limitations, but also a negative impact on employability, and even financial hardship. Over 46 million American adults have self-reported, doctor-diagnosed arthritis. As a rule, the pathology of osteoarthritis (OA) follows a progression starting with the loss of cartilage matrix that predisposes the affected joint to further injury. As OA progresses, there tends to be alterations to underlying bone as well as associated wear and tear on the cartilage with the development of bony outgrowths called osteophytes at the periphery of the affected joint. As a rule, the pathology of OA follows progression starting with loss of cartilage matrix that predisposes the affected joint to further injury.