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1. Genericity of pseudo-Anosov mapping classes, when seen as mapping classes

   https://doi.org/10.4171/LEM/66-3/4-6  

   Erlandsson, Viveka; Souto, Juan; Tao, Jing (January 2020, L’Enseignement Mathématique)

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2. Optical mapping of contracting hearts

   https://doi.org/10.1113/JP283683  

   Kappadan, Vineesh; Sohi, Anies; Parlitz, Ulrich; Luther, Stefan; Uzelac, Ilija; Fenton, Flavio; Peters, Nicholas S; Christoph, Jan; Ng, Fu Siong (April 2023, The Journal of Physiology)
3. Reverberation Mapping of IC 4329A

   https://doi.org/10.3847/1538-4357/acab62  

   Bentz, Misty C.; Onken, Christopher A.; Street, Rachel; Valluri, Monica (February 2023, The Astrophysical Journal)

   Abstract We present the results of a new reverberation mapping campaign for the broad-line active galactic nucleus (AGN) in the edge-on spiral IC 4329A. Monitoring of the optical continuum withV-band photometry and broad emission-line flux variability with moderate-resolution spectroscopy allowed emission-line light curves to be measured for Hβ, Hγ, and Heiiλ4686. We find a time delay of ${16.3}_{-2.3}^{+2.6}$days for Hβ, a similar time delay of ${16.0}_{-2.6}^{+4.8}$days for Hγ, and an unresolved time delay of $-{0.6}_{-3.9}^{+3.9}$days for Heii. The time delay for Hβis consistent with the predicted value from the relationship between AGN luminosity and broad-line region radius, after correction for the ∼2.4 mag of intrinsic extinction at 5100 Å. Combining the measured time delay for Hβwith the broad emission-line width and an adopted value of 〈f〉 = 4.8, we find a central supermassive black hole mass of $M_{\mathrm{BH}}={6.8}_{-1.1}^{+1.2}\times {10}^7$M_⊙. Velocity-resolved time delays were measured across the broad Hβemission-line profile and may be consistent with an “M”-like shape. Modeling of the full reverberation response of Hβwas able to provide only modest constraints on some parameters, but does exhibit agreement with the black hole mass and average time delay. The models also suggest that the AGN structure is misaligned by a large amount from the edge-on galaxy disk. This is consistent with expectations from the unified model of AGNs, in which broad emission lines are expected to be visible only for AGNs that are viewed at relatively face-on inclinations. 

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4. Mapping Emotions

   Alexander, C.; Weinburgh, M.; Brown, K.; & Stroup, M. (January 2023, Social education)
5. Mapping Emotions

   Alexander, C; Weinburgh, M; Brown, K; Stroup, M (April 2023, Social education)

   The COVID-19 pandemic brought unexpected changes across the globe to nearly all aspects of life. Activities such as shopping, traveling, and school, all considered routine aspects of life, suddenly took on a new level of risk. Approximately 1.6 billion students across the world had their schooling experiences interrupted during this global event.1 Matthew Stroup, a high school AP Psychology teacher, was dealing with these unexpected changes, but he also decided to use this disruption as a teaching moment. Mr. Stoup understood that sheltering in place and the resulting social isolation increased stress and anxiety among many families.2 During the 2020-21 school year, approximately 71% of all students were receiving either all or some of their schooling virtually.3 Mr. Stroup observed the effect of this unpredictable learning environment on his students’ learning and the toll it was taking on their relationships with peers, teachers, and family. According to the American Psychological Association, 81% of teens experienced a degradation in their mental health between Spring of 2020 and into the end of the year.4 The idea for the activity described in this article sprang from a class discussion on the effect of social isolation and travel hesitancy on mental health. 

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