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Modeling the Effects of Plasma Etching Parameters using MATLAB
No full textThis paper presents a study of plasma etching in tungsten diselenide (WSe2), a transition metal dichalcogenide with promising applications in nanofabrication. We investigate the effects of ion flux, incidence angle, and energy distribution on etch profiles by developing a custom MATLAB simulation framework informed by literature-derived experimental data. The simulation models trench geometry evolution over time and includes visualization of etch depth in 1D, 2D, and 3D. Preliminary results qualitatively reproduce anisotropic etching trends reported in the literature. This work aims to provide a scalable computational tool to aid understanding and optimization of plasma etching parameters for emerging nanomaterials.https://commons.stmarytx.edu/msrjs/1045/thumbnail.jp
Mexican American Studies Symposium - Part 3: History Panel
No full textThis video includes the third part to the 2025 St. Mary\u27s University Mexican American Studies Symposium which includes the presentations of the history student panel.https://commons.stmarytx.edu/phpresentations/1003/thumbnail.jp
Tonight’s Top Story: Analyzing English and Spanish-language National and Local Newscasts for Content Differences
No full textSpanish-language media alongside its equivalent English-language counterpart, assumingly operate with reporting facts truthfully. However, no studies have compared the accuracy of equitable reporting between English and Spanish-language news, particularly television newscasts. Limited existing research claims that differences, such as the structure of news stories and their placement in a broadcast, may skew a narrative for those who prefer to absorb Spanish-language news in comparison to those who absorb English-language news. In this study, through use of mixed methods, U.S. market’s English and Spanish broadcast news-affiliated stations are examined to draw conclusions on whether or not there are differences in news reporting and how those differences could affect truthful reporting. Broadcasts from NBC, ABC, Telemundo, Univision, among local ones from San Antonio, Texas, are analyzed for story tone, structure, and fair journalism through a comparison of a single-day’s late evening newscasts in both languages. Through an analysis of each station’s choice of placement, time spent on a story, and the topic of the stories covered, recommendations are provided for assuring neutrality is maintained in the practice of journalism in an era of fake news, and how to further advance the study
