A numerical study of the spectrum and eigenfunctions on a tubular arc

The Hamiltonian for a particle constrained to move on the surface of a curved nanotube is derived using the methods of differential forms. A two-dimensional Gram-Schmidt orthonormalization procedure is employed to calculate basis functions for determining the eigenvalues and eigenstates of a tubular arc (a nanotube in the shape of a hyperbolic cosine) with several hundred scattering centers. The curvature of the tube is shown to induce bound states that are dependent on the curvature parameters and bend location of the tube.Comment: 14 pages, 5 tables, 6 figure

Mauna Kea: Where the Cosmos Meet Settler Colonialism

International Research Symposium Exhibitor and Honorable Mention Abstract: The proposed construction of the Thirty Meter Telescope (TMT) on Mauna Kea has sparked protests given the sacredness of the mountain to the Kanaka Maoli (Native Hawaiians). The narratives that have arisen reignite familiar tropes, framing the conflict as one between indigenous religion and scientific progress. I deconstruct these narratives through an analysis of TMT International Observatory (TIO) affiliated websites paired with insights from secondary sources. Ultimately, I argue the TIO’s response and presentation of Ho’Omana Hawai’i religious views and ‘modern’ astronomy as antagonists extend settler-colonialist interests

Embodied Injustices: COVID-19, Race, and Epigenetics

The co-occurrence of the COVID-19 pandemic with the long-lasting effects of systemic racism has been devastating, and results in vast inequities in infection and mortality rates within communities of color. In this article, I analyze the potential for epigenetic research to operationalize the social science theory of embodiment, which describes how the social and material worlds manifest in our physical bodies. Epigenetic modifications can be triggered by environmental stressors, to which minority populations are more likely to be exposed. In turn, these stressors are linked to disorders that increase COVID-19 susceptibility. Thus, epigenetic modifications provide an avenue by which racialized social experiences may become embodied as comorbidities that enhance vulnerability to COVID-19. I contextualize the epigenome’s permeability in larger discussions about the social construction of race, inheritance, and calls for racial equity

The economics of crowd out under mixed public/private health insurance

It is well known that public insurance sometimes crowds out private insurance. Yet, the economic theory of crowd out has remained unstudied. Here, I show that crowd out causes two countervailing effects: (a) the intensive margin effect–since high demanders are crowded out, the private market now has a larger proportion of low demanders on the intensive margin (The intensive margin are those who have already bought private insurance), and so will drop quality to lower the price to the low demanders’ liking; and (b) the extensive margin effect–before the public insurance expansion, the private sector had lowered quality to make insurance more affordable at the extensive margin (The extensive margin is the next group of people who would buy private insurance if the price decreased), but now that public insurance crowds out the extensive margin, quality can then be raised back up to the high demanders’ liking. If the extensive margin effect dominates, then a new phenomenon of push out occurs, in which crowd out causes the private sector to raise quality and to increase the number of uninsured low demanders not eligible for public insurance. If the intensive margin effect dominates, then crowd out will cause the private sector to lower quality, causing the phenomenon of crowd-in, in which the number of uninsured low demanders that take-up private insurance increases. These two countervailing effects have important implications for any government policy that desires to eradicate all uninsurance. First, if push out is dominant, then the private sector will respond to the public insurance by pushing out and leaving some people newly uninsured. If crowd-in is dominant, then all people can be insured and the government can do it at a lower-than-anticipated level of expansion due to the private sector crowding in.info:eu-repo/semantics/publishedVersio