# [CT198]

• Session Time & Room
• CT198 (1/1) : 2C @G304 [Chair: Randy L. Caga-anan]
• Classification
• CT198 (1/1) : Genetics and population dynamics (92D) / Graph theory (05C) / Mathematical biology in general (92B) / Incompressible viscous fluids (76D)

## [02063] Modeling Uncertainty and Optimizing Control in Philippines COVID-19 Vaccination

• Session Time & Room : 2C (Aug.22, 13:20-15:00) @G304
• Type : Contributed Talk
• Abstract : We developed a mathematical model considering vaccination in the country. We incorporated stochastic terms to capture uncertainty. Results show the importance of booster shots that increases the vaccine-induced immunity duration. We then consider the problem of distributing a limited vaccine supply over a time period considering that the country is divided into regions. Simulations showed that the strategy solved from our formulation is better at minimizing infections than a discussed alternative strategy.
• Classification : 92D30, 37N25, 34F05, 49K15, 37H10
• Format : Talk at Waseda University
• Author(s) :
• Randy L. Caga-anan (MSU-Iligan Institute of Technology)
• Jayrold P. Arcede (Caraga State University)
• Joey Genevieve T. Martinez (MSU-Iligan Institute of Technology)

## [02271] Enumerate All Routes on a Doughnut

• Session Time & Room : 2C (Aug.22, 13:20-15:00) @G304
• Type : Contributed Talk
• Abstract : We consider a following doughnut routing problem. Given a matching $M=(U \cap V,E)$ as a bipartite graph, two concentric circles, the cyclic ordering of the vertices in $U$ and $V$ , we wish to draw $M$ with the minimum number of edge crossings so that the vertices in $U ($resp. $V)$ are on the smaller $($resp. larger$)$ circle with the given cyclic ordering. We propose an enumerate algorithm for all optimal solutions of the problem.
• Classification : 05C38
• Format : Talk at Waseda University
• Author(s) :
• Yasuko Matsui (Tokai University)
• Shin-ichi Nakano (Gunma University)

## [01193] Cost-effectiveness and Public Health Impact of HPV Vaccination Strategies with consideration of cross-immunity in Japan

• Session Time & Room : 2C (Aug.22, 13:20-15:00) @G304
• Type : Contributed Talk
• Abstract : We assessed the epidemiological and economic impact of potential health advantages of the HPV vaccination in Japan among girls and boys of ages 12–16. An age-structured mathematical model of HPV transmission was constructed. Compared to halted vaccination, girls-only vaccination programs with either 4vHPV or 9vHPV are cost-effective, but gender-neutral vaccination programs are less so. Adding boys to an existing successful girls-only program is not cost-effective since men are protected by herd immunity.
• Classification : 92B05
• Format : Talk at Waseda University
• Author(s) :
• Wongyeong Choi (Soongsil University)
• Eunha Shim (Soongsil University)

## [00095] Low Reynolds number hydrodynamics of a slip-stick sphere

• Session Time & Room : 2C (Aug.22, 13:20-15:00) @G304
• Type : Contributed Talk
• Abstract : Low Reynolds number hydrodynamics of spherical particles with non-uniform surface roughness show potential applications in microfluidic situations like swimming micro-organisms and emulsions. In this work, we study the hydrodynamics of spherical slip-stick particle models; namely, i) axisymmetric cap/strip model and ii) non-axisymmetric patch model, suspended in an unbounded arbitrary Stokes flow whose surface is partitioned into two different slip regions. We evaluate the optimum configurations for migrational and rotational motion of the slip-stick spherical particle.
• Classification : 76D07, 35A25
• Format : Talk at Waseda University
• Author(s) :
• Shiba Biswas (Indian Institute of Technology Kharagpur, India-721302)
• Poornachandra Sekhar Burada (Indian Institute of Technology Kharagpur, India-721302)
• Raja Sekhar G P (Indian Institute of Technology Kharagpur, India-721302)