Bulletin of the American Physical Society
88th Annual Meeting of the Southeastern Section of the APS
Volume 66, Number 16
Thursday–Saturday, November 18–20, 2021; University Center Club, Florida State University, Tallahassee, Florida
Session Q01: Physics Education I |
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Chair: John Shriner, Tennessee Tech Room: East Ballroom |
Saturday, November 20, 2021 9:00AM - 9:30AM |
Q01.00001: Demystifying STEM Education in Rural Northwest Florida with Nuclear Science Invited Speaker: Denise Newsome Statistics show that success in STEM majors in college is highly correlated with taking courses in high school such as chemistry, physics, and calculus. In rural schools, access to high quality rigorous math and science courses is not common. Students need access to high quality STEM education at the secondary level increase the successful completion of STEM degrees. To address this need in rural schools, creating STEM pathway programs is the beginning to solving the problem. At Deane Bozeman School, we have launched a Nuclear Medicine and Science Academy to provide the framework for preparing students for STEM majors. Nuclear science is a medium that can be utilized to address the STEM education challenges faced by rural schools. [Preview Abstract] |
Saturday, November 20, 2021 9:30AM - 9:45AM |
Q01.00002: Setup of a Magnetically Driven Duffing Oscillator to Measure Stochastic Resonance in Undergraduate Physics Labs Lars Hebenstiel, Ivan Novikov, Doug Harper The Duffing Oscillator (DO) is a bistable, nonlinear oscillator initially described by Georg Duffing in 1918. Due to its nonlinear nature, the DO is an excellent system to study stochastic resonance, a phenomenon also occurring in ring lasers, electron paramagnetic resonance and other non-linear systems. Stochastic resonance is a phenomenon whereby a system experiences resonance due to noise being added to it. Optimal stochastic resonance occurs when the optimal amount of noise is added. In this talk, we present the progress in development of a magnetically driven mechanical model of the DO. The design is inspired by the one proposed in \textit{Donoso, Ladera, Eur. J. Phys. 33 (2012).} The setup is powered by a LabVIEW DAQ system which can be easily controlled by any modern computer. With it, students can experimentally observe phase portraits, poincare maps, bifurcation diagrams, and stochastic resonance. This allows students to familiarize themselves with topics such as chaos, bifurcation and stochastic resonance. This project is funded by the KAS Research Grant, project ID {\#} 23270225. [Preview Abstract] |
Saturday, November 20, 2021 9:45AM - 10:00AM |
Q01.00003: Quantitative analysis of demographic gaps in STEM persistence Eric Burkholder It is well known that, at the undergraduate level and beyond, many STEM fields, particularly ``hard sciences'' and engineering, are far less diverse than the US population more broadly. This is usually modeled by the ``leaky pipeline,'' which posits that we lose STEM talent, particularly from historically marginalized populations, at many points throughout K-16 education -- including after students arrive in college. I will present data showing that, in fact, historically marginalized students generally intend to major in STEM at \textit{higher }rates than overrepresented students but graduate with a STEM degree at lower rates -- indicating much of the leaky pipeline is within the university itself. I will present a detailed quantitative analysis exploring the factors correlated with receiving a STEM degree for different historically marginalized populations. I find that the data tell different stories for women, students of color, first generation students, and students from lower income families. This analysis is limited to a single public research institution in the United States, but I hope to encourage other institutions to conduct similar analyses to see how consistent these patterns are. [Preview Abstract] |
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