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An Explanation of the Supervisory Model used by Elementary Principal Supervisors in the State of Missouri
Full text linkThe goal for this paper was to discuss the efforts a school district has taken to utilize elementary principal supervisors to build and develop principals’ leadership capacities. The question considered was: (1) How are principals supervised and evaluated in one district? Attempting to answer this question is an important step in operationalizing guiding principles that can be shared with principal supervisors. The discussion included the importance of standards, the modeling of instructional supervision by principal supervisors, the reliance of guiding questions and potential data sources. Additional critical factors included coaching with two-way communication based on a trusting, reflective relationship. As the role of principals’ leadership is elevated to increase the performance of teachers and thus the academic performance of students, principal supervisors should be able to provide principals ownership in their supervision and evaluation, evaluate performance based on standards and indicators, deliver feedback, develop trusting relationships, all by making frequent visits to principals’ schools to further the application of principals’ instructional leadership
Dual Credit Enrollment and First-Year Undergraduate Experience in Texas: Insights from a Mixed Methods Study
No full textThere has been considerable expansion in the availability of dual credit coursework, however, there is still a lack of understanding regarding how effective these programs are in equipping students for success in post-secondary education (Struhl & Vargas, 2012). This study used a mixed-methods approach to explore the relationships between various components of dual credit programs and the experiences of first-time undergraduate students. The results of a hierarchical multiple regression indicated a statistically significant relationship between the modality of dual credit coursework and students’ first-year undergraduate GPAs but not between the setting of the two factors. Further, the results did not indicate statistically significant relationships in either structural component when factoring in first-generation status, race, or gender. Additionally, a thematic analysis of a virtual focus group interview transcript using inductive coding revealed several themes related to students’ perspectives on the influence of dual credit course enrollment on their college experience, including academic preparation and rigor, support systems and guidance, workload, burnout, and wellbeing, and access, affordability, and academic pathways
Kaempferol and curcumin as fluorescent probes for DNA topologies: Integrated spectroscopic and computational study
No full textKaempferol (3,4′,5,7-tetrahydroxyflavone, KMP) and curcumin (diferuloylmethane, CUR) are naturally occurring polyphenolic compounds with broad therapeutic potential, including anticancer, antioxidant, and anti-inflammatory properties. Among their molecular targets, DNA plays a central role, particularly through interactions with non-canonical DNA structures such as G-quadruplexes (G4) and i-motifs (C4), which form in guanine- and cytosine-rich genomic regions, respectively. These structures regulate telomere maintenance, gene expression, and genomic stability, making them attractive drug targets. In this study, we investigate the binding behavior of KMP and CUR with G4, C4, and duplex calf thymus DNA (calf thymus (CT)-DNA) using an integrated spectroscopic and computational approach. Circular dichroism, UV–visible absorption, and fluorescence spectroscopy were used to monitor ligand-induced structural and photophysical changes. CUR exhibited pronounced solvatochromism, with emission maxima shifting according to solvent polarity and DNA topology and showed the strongest fluorescence enhancement in G4 DNA. KMP displayed excited state intramolecular proton transfer (ESIPT), with the highest tautomeric emission observed in G4 structures. However, G4 also facilitated ground-state anion formation at the 3-OH group of KMP, which suppressed ESIPT by interfering with intramolecular hydrogen bonding between C(4) = O and 3-OH. ESIPT was least prominent in C4, and moderate in duplex DNA, where anion formation was less favored. Displacement assays using ethidium bromide (EtBr) provided functional insight into the competitive binding dynamics, confirming groove and loop binding for both ligands in G4 and C4 DNA, while KMP also exhibited intercalative binding in duplex DNA. Molecular docking and molecular dynamics simulations corroborated these findings, revealing stable ligand-DNA complexes and specific interaction modes. This comprehensive approach highlights CUR as a polarity-sensitive reporter and KMP as a thermally and structurally responsive ESIPT fluorophore. Together, they represent promising tools for probing DNA topology and developing targeted molecular diagnostics or therapeutic strategies centered on nucleic acid structure recognition
Geology of Nacogdoches, Texas : GEOGULF 2025
Full text linkNacogdoches and East Texas are geologically interesting places to live and work. This field trip will visit the locations indicated on the maps below (Figures 1 and 2). Our location is on the Sabine Uplift and is east of the East Texas Salt Dome Basin (Figure 3 and 4). The first producing oil well in Texas was drilled near Woden by Taliaferro Barret in 1866 at a depth of 106 feet, producing about 10 barrels a day from the Sparta Sand (Figures 5 and 6). Stratigraphic units that we will see are: Sparta Sand, Weches Formation, Queen City Sand, Reklaw Formation and Carrizo Sand (Figure 4). The Weches Formation consists of claystone that contain fossils, pellets, and outcrops in valleys and low areas in Nacogdoches. The Sparta Sand tops most hills in Nacogdoches and does not contain fossils. Queen City Sand and Reklaw Formation are not well exposed in Nacogdoches. Outcrops of the Carrizo Sand contain excellent cross bedding and is exposed on the tops the hills near Mt. Enterprise. The Mt. Enterprise fault system in our area has recently had a number of earthquakes with magnitudes as high as 4.8 on the Richter Scal
The Athlete’s NIL Playbook: The Complete Guide to Owning and Profiting from Your Name, Image, and Likeness
No full textThis review discusses The Athlete\u27s NIL Playbook: The Complete Guide to Owning and Profiting from Your Name, Image, and Likeness. Though aimed at high school and college students and their parents, the book is a practical guide for anyone interested in learning more about and navigating the Name, Image, and Likeness (NIL) marketplace. With examples from current and former student-athletes\u27 lived experiences, Dosh offers guidance for developing a personal brand, contacting sponsors, and seeking NIL opportunities beyond social media marketing. In addition, Dosh shares her legal experience to highlight potentially one-sided contract terms and key questions to ask before signing with an agent. Notably, Dosh underscores the benefits of NIL for post-graduation career opportunities. Overall, The Athlete\u27s NIL Playbook is a useful reference for navigating the NIL landscape
Quantifying Emitted Air Lead Concentrations from General Aviation Fuel at Georgetown Executive Airport
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(In)consequential Rhetoric: Grading Policy and Values Misalignment at First-Generation-Serving Community Colleges
No full textResearch indicates that first-generation (FG) students face a number of barriers to success in higher education when compared to their continuing-generation peers. Although many institutions serving a large number of FG students have implemented programs to support this population, little attention has been paid to institutional grading policies that reinforce harmful practices by attempting to standardize assessment while perpetuating inequalities. This study uses document analysis and critical policy analysis to examine the alignment between the grading policies and institutional values of 25 community colleges serving high FG student populations. Findings reveal critical tensions between the stated values of these colleges and the grading policies they employ, potentially creating additional barriers for all students, especially those who are first-generation