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Articles 1 - 4 of 4
Full-Text Articles in Physical Sciences and Mathematics
Nonlinear Optical Characterization Of Solids, Alex Farnsworth
Nonlinear Optical Characterization Of Solids, Alex Farnsworth
Undergraduate Honors Theses
Vibrational Sum Frequency Generation (VSFG) and the similar Second Harmonic Generation (SHG) are both classified as nonlinear optical phenomena, with the hallmark trait being that the input and output frequencies are different. Both of these systems are remarkable tools due to their surface specific nature. Still, there is much that is not known about the response from these systems, especially the nonresonant SFG response. We have worked to better understand SFG signal, specifically the nonresonant temporal profile. We have also collected results that call into question some underlying assumptions about time-based suppression methods when working with single crystal substrates.
As …
User Attitudes About Duo Two-Factor Authentication At Byu, Jonathan Dutson
User Attitudes About Duo Two-Factor Authentication At Byu, Jonathan Dutson
Undergraduate Honors Theses
Simple password-based authentication provides insufficient protection against increasingly common incidents of online identity theft and data loss. Although two-factor authentication (2FA) provides users with increased protection against attackers, users have mixed feelings about the usability of 2FA. We surveyed the students, faculty, and staff of Brigham Young University (BYU) to measure user sentiment about DUO Security, the 2FA system adopted by BYU in 2017. We find that most users consider DUO to be annoying, and about half of those surveyed expressed a preference for authentication without using a second-factor. About half of all participants reported at least one instance of …
Divisibility Properties Of Coefficients Of Modular Functions Of Genus Zero Levels, Merrill Warnick
Divisibility Properties Of Coefficients Of Modular Functions Of Genus Zero Levels, Merrill Warnick
Undergraduate Honors Theses
We prove divisibility results for the Fourier coefficients of canonical basis elements for the spaces of weakly holomorphic modular forms of weight 0 and levels 6, 10, 12, 18 with poles only at the cusp at infinity. In addition, we show that these Fourier coefficients satisfy Zagier duality in all weights, and give a general formula for the generating functions of such canonical bases for all genus zero levels. These results originally appeared in a paper of the same title that was accepted by the journal Integers, and was authored by the present author, with Paul Jenkins and Vicki
Examining Multimorbidities Using Association Rule Learning, Kaylee Dudley
Examining Multimorbidities Using Association Rule Learning, Kaylee Dudley
Undergraduate Honors Theses
All insurance companies, regardless of the kind of insurance they offer, do their best to predict the future by comparing current to historical information. Any statistically significant correlation, regardless of expectations and hidden factors, can help to actuarially model future behavior. Using deidentified data from over 6 million health insurance policies over one year, we looked for any significant groupings of medical issues. The medical issues are defined based on the commercial “Episode Treatment Groups” (ETGs) classification, and our claims contain 347 different ETGs. We performed different kinds of analysis, including Bayesian posterior cluster analysis, k-means cluster analysis, and association …