RomanRelations with:Xavier University of Louisiana (also known as XULA) is a private, historically black, Catholic university in New Orleans, Louisiana. It is the only Catholic HBCU and, upon the canonization of Katharine Drexel in 2000, became the first Catholic university founded by a saint. In 2018, Xavier had an endowment of approximately $171 million, which was the fifth highest among Louisiana's colleges and universities.
Polymeric ionic liquids are a diverse class of ion-conducting materials with tunable properties that can advance the applicability of additive manufacturing. However, the potential of 3D UV printing of polymeric ionic liquids with metallic fillers for electronic applications remains somewhat limited. In this work, we formulated photocurable resins using a methacrylate-based ionic liquid monomer and a crosslinker, with and without gold nanoparticles as fillers. Our results show that centimeter-scale structures, both free-standing and bonded to a substrate, can be prepared straightforwardly from the formulations using commercial 3D UV printers. The printed structures exhibited high fidelity, a high degree of polymerization, and high thermal stability, with stiffness ranging from 0.2 GPa to 0.5 GPa. Increasing the content of gold nanoparticles in the ionic liquid composites increased the glass transition temperature from -23 degrees C to -3.5 degrees C. Polymers without gold nanoparticles had a conductivity of 10-6 S cm-1, which increased to 10-4 S cm-1 in prints with 1 wt% of gold nanoparticles. 3D-printed resistors made from 1 wt% of gold nanoparticles maintained a stable current profile for several hours. Such a result highlights the potential to prepare ionic-liquid-based flexible electronic components using commercial 3D UV printers.
This study emerged from a scholarly interest to conduct empirical observations on sustainability and sustainability education within the larger contexts related to the implementation of the United Nations 2030 Sustainable Development Goals and the challenges posed by climate change and the dynamics of climate change activism. This investigation aimed to explore the experience, beliefs, and perspectives of informal adult learners in Germany regarding the relationship between climate change activism and sustainability education. The study was conceptually informed by the dynamic relationship between sustainability education and climate change activism. This was a basic interpretive qualitative study. A total of 17 informal adult learners who are concurrently climate change activists in Germany were purposefully interviewed for this study. The findings report and discuss on the participant profiles, the experiences of informal adult learners in Germany regarding sustainability education, as well as their beliefs and perspectives about actions to address climate change.
In this essay, we engage in a roundtable discussion to explore how we each home Black feminist performance in our work. We offer "homing" as an organizing concept. It does dual work. First, homing recalls a placemaking practice or a praxis of becoming and belonging using the knowing-doing body to create, disrupt, or transform space. Second, homing denotes a return to radical joy and make-do pragmatism rooted in Black feminism that relies on the knowing-being body to analyze aesthetics and to point to performative possibilities for social change. We organize homing into three sections: Homeplace, Homework, and Homebody.
In this paper, we investigate the convergence rate in the vanishing viscosity limit for solutions to superquadratic Hamilton–Jacobi equations with state constraints. For every p>2, we establish the rate of convergence for nonnegative Lipschitz data vanishing on the boundary to be of order 𝒪(ε^1/2) and obtain an improved upper rate of order 𝒪(ε^p/2(p-1)) for semiconcave data.
Arslan, Altoum, and Zaarour introduced an inversion statistic for generalized symmetric groups. In this work, we study the distribution of this statistic over colored permutations, including derangements and involutions. By establishing a bijective correspondence between colored permutations and colored Lehmer codes, we develop a unified framework for enumerating colored Mahonian numbers and analyzing their combinatorial properties. We derive explicit formulas, recurrence relations, and generating functions for the number of inversions in these families, extending classical results to the colored setting. We conclude with explicit expressions for inversions in colored derangements and involutions.
