Papers

1. Estimating circadian rhythms and their association with sleep efficiency using long-term biological signals
   Isshu Wakita, Kazuya Maruyama, Sou Nobukawa, Aya Shirama, Tomiki Sumiyoshi
   Nonlinear Theory and Its Applications, 17, 295-305 (2025).
   DOI:10.1587/nolta.17.295
2. Enhancing Chaotic Resonance in Asymmetric Cubic Maps via Double-Gaussian Asymmetric Feedback
   Anh Tu Tran, Sou Nobukawa, Nobuhiko Wagatsuma, Keiichiro Inagaki, Hirotaka Doho, Teruya Yamanishi
   IEEE Access, (2025).
   DOI:10.1109/ACCESS.2026.3653466