High Density Effective Theory Confronts the Fermi Liquid

The high density effective theory recently introduced by Hong and Hsu to describe ultradense relativistic fermionic matter is used to calculate the tree-level forward scattering amplitude between two particles at the Fermi surface. While the direct term correctly reproduces that of the underlying gauge theory, the exchange term has the wrong sign. The physical consequences are discussed in the context of Landau's theoretical description of the Fermi liquid.Comment: 15 pages, 2 figures; conclusion expanded, reference adde

Solving the HP model with Nested Monte Carlo Search

In this paper we present a new Monte Carlo Search (MCS) algorithm for finding the ground state energy of proteins in the HP-model. We also compare it briefly to other MCS algorithms not usually used on the HP-model and provide an overview of the algorithms used on HP-model. The algorithm presented in this paper does not beat state of the art algorithms, see PERM (Hsu and Grassberger 2011), REMC (Thachuk, Shmygelska, and Hoos 2007) or WLRE (W\"ust and Landau 2012) for better results. Hsu, H.-P.; and Grassberger, P. 2011. A review of Monte Carlo simulations of polymers with PERM. Journal of Statistical Physics, 144 (3): 597 to 637. Thachuk, C.; Shmygelska, A.; and Hoos, H. H. 2007. A replica exchange Monte Carlo algorithm for protein folding in the HP model. BMC Bioinformatics, 8(1): 342. W\"ust, T.; and Landau, D. P. 2012. Optimized Wang-Landau sampling of lattice polymers: Ground state search and folding thermodynamics of HP model proteins. The Journal of Chemical Physics, 137(6): 064903.Comment: Accepted to AAAI's workshop AI2ASE 2023: 2nd Annual AAAI Workshop on AI to Accelerate Science and Engineering. 6 pages, 1 for reference

A supplement to an EOQ model with imperfect quality items, inspection errors, shortage backordering, and sales return

Hsu and Hsu (2013a) established a closed-form solution for an EOQ model with imperfect quality items, inspection errors, shortage backordering, and sales returns, where the customers who return the defective items will receive full price refunds; i.e., the returned items are not replaced with good items. In this note, we extend Hsu and Hsu's (2013a) work to consider the case that returned items are replaced with good items. A closed-form solution is developed for the optimal order size and the maximum shortage level. Numerical examples are provided to show the differences in the optimal solutions when returned items are replaced, and when they are not

Gabrielle Hsu, bassoon

Wolfgang Amadeus MozartAlain BernaudAntoine DardThomas BreadonMikhail Glinka, arr. M. Kostla

Contracted Representation of Yang's Space-Time Algebra and Buniy-Hsu-Zee's Discrete Space-Time

Motivated by the recent proposition by Buniy, Hsu and Zee with respect to discrete space-time and finite spatial degrees of freedom of our physical world with a short- and a long-distance scales, $l_P$ and $L,$ we reconsider the Lorentz-covariant Yang's quantized space-time algebra (YSTA), which is intrinsically equipped with such two kinds of scale parameters, $\lambda$ and $R$. In accordance with their proposition, we find the so-called contracted representation of YSTA with finite spatial degrees of freedom associated with the ratio $R/\lambda$, which gives a possibility of the divergence-free noncommutative field theory on YSTA. The canonical commutation relations familiar in the ordinary quantum mechanics appear as the cooperative Inonu-Wigner's contraction limit of YSTA, $\lambda \to 0$ and $R \to \infty.

Skill development and the making of the global citizen: an analysis of student experiences with study abroad at Humboldt State University

Global citizenship is seen as an emerging necessity as work places are shifting to a more global environment and as challenges we face are becoming more global in nature. This thesis focuses on the creation and nurturing of global citizenship through participation in study abroad programming at Humboldt State University (HSU). Research has shown participation in study abroad has an impact on the participant’s skill development (Farraguia and Sanger 2017) and such skill development can be applied to advancement of global citizenship. This thesis utilizes a mixed methodology to develop a thorough understanding of the level of skills associated with studying abroad for HSU students. Spatial data was examined to determine the extent to which HSU students were studying abroad in the same countries as students across the United States. A survey was sent out to 75 recent HSU study abroad participants and a random sample of 350 HSU students to determine global perspectives. Finally, semi-structured face-to-face interviews were conducted with eight students returning from study abroad programs in order to detail how the skills they developed impacted their lives. Europe was the most popular region for both HSU and US study abroad in the 2017/2018 academic year. Survey data indicated study abroad participation increases identification as a global citizen, and the interviewees commonly referenced food in describing the skills they developed from their study abroad experiences