Preparing the Next Generation of Health Education Teachers for the Ethical Use of AI

This article examines how health education teacher preparation programs can prepare future educators to use artificial intelligence (AI) in responsible and effective ways. It begins with a brief overview of the use of AI in education, considering the growing impact of generative AI technologies on teaching and learning. The article outlines international and national standards that govern the application of AI in education, addressing key ethical concerns, including the dissemination of inaccurate health information, violations of student privacy, bias, and inequitable access to AI tools. The article emphasizes the importance of ethical decision-making and professional responsibility when integrating AI into instruction. Drawing on existing health education standards and ethical guidelines, the article offers practical recommendations to support the thoughtful and ethical use of these tools. The goal is to strengthen both initial teacher preparation and continuing professional development so that health educators are equipped to provide instruction that is accurate, inclusive, and responsive to students\u27 needs in a changing educational landscape

Economic Freedom and Happiness in U.S. Metropolitan Areas

Economic freedom has been shown to be positively associated with economic growth and a multitude of other outcomes, including measures of individual subjective well-being. We provide the first local-level examination of that latter relationship by conducting a multi-faceted investigation into the relationship between economic freedom, measured at the U.S. metropolitan statistical area level, and subjective well-being measures in the Gallup daily polls and the General Social Survey. Like previous work looking at countries and states, our results show a generally positive association between economic freedom and subjective well-being. The association is robust to the inclusion of Bartik-style instruments to control for endogeneity. © 2025 Elsevier B.V., All rights reserved

Poisson valuations

We study Poisson valuations and provide their applications in solving problems related to rigidity, automorphisms, Dixmier property, isomorphisms, and embeddings of Poisson algebras and fields. © 2025 Elsevier B.V., All rights reserved

Twists of graded Poisson algebras and related properties

We introduce a Poisson version of the graded twist of a graded associative algebra and prove that every graded Poisson structure on a connected graded polynomial ring A:=k[x1,…,xn] is a graded twist of a unimodular Poisson structure on A, namely, if π is a graded Poisson structure on A, then π has a decomposition [Formula presented] where E is the Euler derivation, πunim is the unimodular graded Poisson structure on A corresponding to π, and m is the modular derivation of (A,π). This result is a generalization of the same one in the quadratic setting. The rigidity of graded twisting, PH1-minimality, and H-ozoneness are studied. As an application, we compute the Poisson cohomologies of the quadratic Poisson structures on the polynomial ring of three variables when the potential is irreducible, but not necessarily having an isolated singularity. © 2024 Elsevier B.V., All rights reserved

Leadership Approaches Implemented within K-12 Schools

Educators often consider the importance of leadership approaches in effectively operating K-12 schools in their state districts. However, traits, skills, and behavioral leadership styles all seem relevant to faculty, staff, and students surrounding how principals interacted with their employees in K-12 schools. One ineffective decision by principals can lead to unfavorable school climates, low teacher morale, and student discipline issues within classrooms on K-12 campuses. A pseudonym, Ms. Ladd, will be used as an example of how leadership approaches to operate a good junior high school effectively. This paper will describe the characteristics of leadership approaches, experiences of leadership approaches, effective leadership approaches, and improvement of my leadership approach in K-12 schools

The influence of racial threat and intergroup contact on the incarceration of black drug defendants

The effect of racial threat on racial disparities in sentencing has yielded inconsistent findings. One explanation involves the widespread use of the percentage of the Black population to measure racial threat, which assumes that decision-makers respond to general demographic patterns. However, it is more plausible that prosecutors are influenced by the racial composition of their specific caseloads. A multilevel analysis using the percent of Black drug defendants, rather than an overall racial composition population measure, fails to support racial threat theory or the contact hypothesis. Nonetheless, Black drug defendants remain significantly more likely than similarly situated White defendants to receive incarcerative sentences, indicating that racial disparities persist even when alternative threat measures are used when examining large urban U.S. counties. © 2025 Elsevier B.V., All rights reserved

Does FinTech uplift vulnerable consumers? Evidence from the cash app

FinTech, digitally enabled innovation for financial services, is important for uplifting vulnerable consumers. This paper examines consumer vulnerability in fintech, service innovation for social innovation, through the lens of Transformative Service Research. The Cash App, a peer-to-peer payment service platform targeted at low-income consumers, was examined as an empirical context with the consumer complaints filed to the U.S. Consumer Financial Protection Bureau. Natural language processing was applied to examine whether the Cash App uplifts vulnerable consumers in addition to Pearson\u27s chisquared test, spatial analysis, and discourse analysis. Evidence-based implications to practitioners and academia are discussed. © 2025 Elsevier B.V., All rights reserved

Dislocation Avalanches in Compressive Creep and Shock Loadings

Motion of dislocations is a common mechanism of plasticity in many materials. Acoustic emissions and stress bursts turned out to be integral parts of this mechanism. An adequate description of these processes is an important goal of the Materials Theory, which aims to describe the mechanical properties of materials and their reliability in service. In this article, a novel approach to dislocation plasticity capable of describing emission events and stress bursts is introduced, and computational experiments intended to model the processes of compressive creep and shock compression in samples of various makeup and sizes are discussed. It turns out that the emission events self-organize into dislocation avalanches, which propagate at a speed determined by the conditions of loading. In the compressive creep experiments, the avalanches arrange into slow-moving slip bands, while in the shock compression experiments the avalanches move faster than sound. © 2025 Elsevier B.V., All rights reserved

Fabrication of antimicrobial nanocomposite mat using Lokta fiber

Lignocellulose biomass is being used in a wide range of applications including packaging materials, biofuels, paper, and cardboard. In Nepal, the biomass obtained from Lokta bushes (Daphne bhoula and Daphne papyracea) is traditionally being used by local paper industries and enterprises to make handmade paper and other value-added products. To increase the trade value of handmade paper and increase the sustainability of local industries, it is important to explore next-generation applications. In this study, lignocellulose biomass obtained from Lokta bushes was processed chemo-mechanically, pulped, and converted to a cellulose mat. The caliper, grammage, apparent density, Cobb 60, brightness, opacity, and tensile strength properties of the cellulose mat were systematically measured. The mat was then doped with Cu and Ag/ZnO nanoparticles following traditional reduction and hydrothermal methods to get a nanocomposite mat. The nanocomposite mat was characterized using UV–Vis, XRD, SEM, and TGA techniques. Characteristic features of the nanoparticles were confirmed through the obtained data. The antimicrobial activity of the nanocomposite mat was tested against two bacterial strains (Escherichia coli and Bacillus subtilis) and one fungal strain (Candida albicans), demonstrating significant antimicrobial activity, as indicated by zones of inhibition. The results obtained from this study suggested that Lokta lignocellulose biomass can be used in laboratory settings for the fabrication of a nanocomposite mat and the mat can be potentially used for antimicrobial packaging applications. © 2025 Elsevier B.V., All rights reserved

Size-dependent fluorescence properties of CdSe quantum dots

The optical properties of three different sizes of cadmium selenide (CdSe) quantum dots (QDs) were investigated using absorption, emission, and time-resolved photoluminescence spectroscopy. The absorption and emission spectra disclose the blue shift of a quantum dot due to quantum confinement effects. The contributions of the three individual components of the exciton lifetime of CdSe colloidal QDs were measured and their weighted average exciton life time was determined. A fast lifetime component (τ1) related to the band edge to valence band transition, an intermediate lifetime component (τ2) associated with the surface-trapped state to valence band or band edge to valence trapped state transition, and a slow lifetime component (τ3) associated with the surface-trapped state to valence trapped state transition are included in calculating the average exciton lifetime in CdSe QDs. The study demonstrates that the band-edge transition consistently contributes more significantly to the overall exciton lifetime across all QDs sizes. It reveals that the lifetime increases with size for QDs smaller than Bohr radius. The same trend does not hold for QDs larger than Bohr radius. These findings offer a critical insight into the size-dependent optical properties of CdSe QDs and hold significant implications for the development of advanced optoelectronic devices and other cutting-edge technological applications. © 2025 Elsevier B.V., All rights reserved