Publications

2024. 

2022. 

•  Hiromu Ito*, Takayuki Wada, Genki Ichinose, Jun Tanimoto, Jin Yoshimura, Taro Yamamoto, Satoru Morita "Social dilemma in the excess use of antimicrobials incurring antimicrobial resistance" Scientific Reports. 12: 21084, 2022.

• Hiromu Ito, Keiko Shigeta, Taro Yamamoto, Satoru Morita* "Exploring sexual contact networks by analyzing a nationwide commercial-sex review website" PLoS ONE. 17(11): e0276981, 2022.

• Diane Carmeliza N. Cuaresma*, Erika Chiba, Jerrold M. Tubay, Jomar F. Rabajante, Maica Krizna A. Gavina, Jin Yoshimura, Hiromu Ito, Takuya Okabe, Satoru Morita* "Optimal strategies and cost-benefit analysis of the n-player weightlifting game" Scientific Reports. 12: 8482, 2022. 

• Hiroaki Arima, Sweta Koirala, Kotaro Nema, Masayuki Nakano, Hiromu Ito, Kapil Madi Poudel, Kishor Pandey, Basu Dev Pandey, Taro Yamamoto* "High prevalence of rheumatoid arthritis and its risk factors among Tibetan highlanders living in Mustang, Nepal" Journal of Physiological Anthropology. 41: 12, 2022.

• Takayuki Nishimura*, Hiroaki Arima, Sweta Koirala, Hiromu Ito, Taro Yamamoto "Individual variations and sex differences in hemodynamics and percutaneous arterial oxygen saturation (SpO2) in Tibetan highlanders of Tsarang in the Mustang district of Nepal" Journal of Physiological Anthropology. 41: 9, 2022.

2021. 

• Hiromu Ito, Taro Yamamoto, Satoru Morita* "The effect of men who have sex with men (MSM) on the spread of sexually transmitted infections" Theoretical Biology and Medical Modelling. 18: 18, 2021.

• Sheikh Saifur Rahman Jony, Ubydul Haque*, Nathaniel J. Webb, Emily Spence, Md. Siddikur Rahman, Nasrin Aghamohammadi, Yongchan Lie, Aracely Angulo-Molina, Sushmitha Ananth, Xuelian Ren, Nobuyuki Kawachi, Hiromu Ito, Osman Ulvi , Jailos Lubinda, Ajlina Karamehic-Muratovic, Wasim Maher, Parveen Ali, M. Sohel Rahman "Analyzing predictors of control measures and psychosocial problems associated with COVID-19 pandemic: evidence from eight countries" Behavioral Sciences. 11: 106, 2021.

• Erika Chiba#, Diane Carmeliza N. Cuaresma#, Jomar F. Rabajante, Jerrold M. Tubay, Maica Krizna Areja Gavina, Tatsuki Yamamoto, Jin Yoshimura*, Satoru Morita, Hiromu Ito, Takuya Okabe* "Improving environment drives dynamical change in social game structure" Royal Society Open Science. 8: 201166, 2021. 

• Maica Krizna D. Areja‐Gavina*, Monica C. Torres, Gimelle B. Gamilla, Tomohiko Sakaguchi, Hiromu Ito, Jomar F. Rabajante, Jerrold M. Tubay, Jin Yoshimura, Satoru Morita "Exaggerated evolution of male armaments via male–male competition" Ecology and Evolution. 11: 6977-6992, 2021.

• Hiroaki Arima, Masayuki Nakano, Sweta Koirala, Hiromu Ito, Basu Dev Pandey, Kishor Pandey, Takayuki Wada, Taro Yamamoto* "Unique hemoglobin dynamics in female Tibetan highlanders" Tropical Medicine and Health. 49: 2, 2021. 

2020. 

• Rahila I.K. Sumaiya, Momoka Nii, Takuya Okabe, Hiromu Ito, Muhammad A. Pulungan, Satoru Morita, Kazuya Kobayashi, Mitsutoshi Setou, Kikuo Iwabuchi, Kenji Matsuura, Jin Yoshimura* "Energetic requirements of the transition from solitary to group living" Ecological Complexity. 44: 100874, 2020. 

• Md. Rajib Arefin*, K. M. Ariful Kabir, Marko Jusup*, Hiromu Ito, Jun Tanimoto* "Social efficiency deficit deciphers social dilemmas" Scientific Reports. 10:  16092, 2020.

• Hiromu Ito*, Jun Tanimoto "Dynamic utility: the sixth reciprocity mechanism for the evolution of cooperation" Royal Society Open Science. 7: 200891, 2020. 

2019. 

• Hiromu Ito, Taro Yamamoto, Satoru Morita* "The type-reproduction number of sexually transmitted infections through heterosexual and vertical transmission" Scientific Reports. 9:  17408, 2019.

• Tatsuki Yamamoto, Hiromu Ito, Momoka Nii, Takuya Okabe, Satoru Morita, Jin Ysohimura* "A single 'weight-lifting' game covers all kinds of games" Royal Society Open Science. 6: 191602, 2019.

• Momoka Nii*, Takuya Okabe, Hiromu Ito, Satoru Morita, Yosuke Yasuda, Jin Ysohimura* "Bankruptcy is an inevitable fate of repeated investments with leverage" Scientific Reports. 9: 13745, 2019.

• Hiromu Ito, Kazuhiro Tamura, Takayuki Wada, Taro Yamamoto, Satoru Morita* "Is the network of heterosexual contact in Japan scale free?" PLoS ONE. 14(8): e0221520, 2019.

• Muhammad A. Pulungan*, Shota Suzuki, Maica Krizna A. Gavina, Jerrold M. Tubay, Hiromu Ito, Momoka Nii, Genki Ichinose, Takuya Okabe, Atsushi Ishida, Masae Shiyomi, Tatsuya Togashi, Jin Ysohimura*, Satoru Morita* "Grazing enhances species diversity in grassland communities" Scientific Reports. 9: 11201, 2019.

• Takahiro Otsuki, Daisuke Uka, Hiromu Ito, Genki Ichinose, Momoka Nii, Satoru Morita, Takuma Sakamoto, Maaya Nishiko, Hiroko Tabunoki, Kazuya Kobayashi, Kenji Matsuura, Kikuo Iwabuchi, Jin Ysohimura* "Mass killing by female soldier larvae is adaptive for the killed male larvae in a polyembryonic wasp" Scientific Reports. 9: 7357, 2019.

• Hiromu Ito, Taro Yamamoto, Satoru Morita* "Demography of sexually transmitted infections with vertical transmission" Applied Mathematics and Computation. 348: 363-370, 2019.

• Hiromu Ito* "Risk sensitivity of a forager with limited energy reserves in stochastic environments" Ecological Research. 34(1): 9-17, 2019.

2018.

• Yuki Katsumata, Takashi Uehara, Hiromu Ito, Jin Yoshimura, Kei-ichi Tainaka, Genki Ichinose* "Density-dependent population model of effective release policy for Ayu fish" Ecological Modelling. 388: 80-87, 2018.

• Hiromu Ito*, Jun Tanimoto "Scaling the phase-planes of social dilemma strengths shows game-class changes in the five rules governing the evolution of cooperation" Royal Society Open Science. 5: 181085, 2018. 

• Sweta Koirala, Masayuki Nakano*, Hiroaki Arima, Shouhei Takeuchi, Tomo Ichikawa, Takayuki Nishimura, Hiromu Ito, Basu Dev Pandey, Kishor Pandey, Takayuki Wada, Taro Yamamoto "Current health status and its risk factors of the Tsarang villagers living at high altitude in the Mustang district of Nepal" Journal of Physiological Anthropology. 37: 20, 2018.

• Maica Krizna A. Gavina, Kotaro Aoki, Genki Ichinose, Jomar F. Rabajante, Hiromu Ito, Satoru Morita, Vincent A. A. Jansen, Jin Yoshimura* "Long-term persistence of agricultural pest insects by risk-spreading dispersal" Ecological Research. 33(5): 1031-1037, 2018.

• Takeru Tahara, Maica Krizna A. Gavina, Takenori Kawano, Jerrold M. Tubay, Jomar F. Rabajante, Hiromu Ito, Satoru Morita, Genki Ichinose, Takuya Okabe, Tatsuya Togashi, Kei-ichi Tainaka, Akira Shimizu, Takashi Nagatani, Jin Yoshimura* "Asymptotic stability of a modified Lotka-Volterra model with small immigrations" Scientific Reports. 8: 7029, 2018.

• Maica Krizna A. Gavina, Takeru Tahara, Kei-ichi Tainaka, Hiromu Ito, Satoru Morita, Genki Ichinose, Takuya Okabe, Tatsuya Togashi, Takashi Nagatani, Jin Yoshimura* "Multi-Species coexistence in Lotka-Volterra competitive systems with crowding effect" Scientific Reports. 8: 1198, 2018.

2017. 

• Yuki Katsumata, Takashi Uehara, Hiromu Ito, Jin Yoshimura, Kei-ichi Tainaka, Genki Ichinose* "Territory holders and non-territory holders in Ayu fish coexist only in the population growth process due to hysteresis" Scientific Reports. 7: 16777, 2017.

• Hiromu Ito#, Yuki Katsumata#, Eisuke Hasegawa, Jin Yoshimura* "The promotion of cooperation by the poor in dynamic chicken games" Scientific Reports. 7: 43377, 2017.  

2016. 

• Takuya Koyama, Hiromu Ito, Tomomichi Fujisawa, Hiroshi Ikeda, Satoshi Kakishima, John R. Cooley, Chris Simon, Jin Yoshimura, Teiji Sota* "Genomic divergence and lack of introgressive hybridization between two 13-year periodical cicadas supports life-cycle switching in the face of climate change?" Molecular Ecology. 25(21): 5543-5556, 2016.

• Hiromu Ito#, Yuki Katsumata#, Eisuke Hasegawa, Jin Yoshimura* "What is true halving in the payoff matrix of game theory?" PLoS ONE. 11(8): e0159670, 2016.

• Jomar F. Rabajante*, Jerrold M. Tubay, Hiromu Ito, Takashi Uehara, Satoshi Kakishima, Satoru Morita, Jin Yoshimura, Dieter Ebert "Host-parasite Red Queen dynamics with phase-locked rare genotypes" Science Advances. 2(3): e1501548, 2016.

2015. 

• Jerrold M. Tubay, Keisuke Suzuki, Takashi Uehara, Satoshi Kakishima, Hiromu Ito, Atsushi Ishida, Katsuhiko Yoshida, Shigeta Mori, Jomar F. Rabajante, Satoru Morita, Masayuki Yokozawa, Jin Yoshimura* "Microhabitat locality allows multi-species coexistence in terrestrial plant communities" Scientific Reports. 5: 15376, 2015.

• Satoshi Kakishima, Satoru Morita*, Katsuhiko Yoshida, Atsushi Ishida, Saki Hayashi, Takahiro Asami, Hiromu Ito, Donald G. Miller III, Takashi Uehara, Shigeta Mori, Eisuke Hasegawa, Kenji Matsuura, Eiiti Kasuya, Jin Yoshimura* "The contribution of seed dispersers on the tree species diversity in tropical rain forests" Royal Society Open Science. 2(10): 150330, 2015.

• Hiromu Ito, Satoshi Kakishima, Takashi Uehara, Satoru Morita, Takuya Koyama, Teiji Sota, John R. Cooley, Jin Yoshimura* "Evolution of periodicity in periodical cicadas" Scientific Reports. 5: 14094, 2015.

• Hiromu Ito, Jin Yoshimura* "Social penalty promotes cooperation in a cooperative society" Scientific Reports. 5: 12797, 2015.

• Takuya Koyama, Hiromu Ito, Satoshi Kakishima, Jin Yoshimura, John R. Cooley, Chris Simon, Teiji Sota* "Geographic body size variation in the periodical cicadas Magicicada: implications for life cycle divergence and local adaptation" Journal of Evolutionary Biology. 28(6): 1270-1277, 2015.

2014.

• Hiromi Asanuma#, Satoshi Kakishima#, Hiromu Ito, Kazuya Kobayashi, Eisuke Hasegawa, Takahiro Asami, Kenji Matsuura, Derek A. Roff, Jin Yoshimura* "Evolutionary optimality in sex differences of longevity and athletic performances" Scientific Reports. 4: 5425, 2014.

2013.

• Jerrold M. Tubay, Hiromu Ito, Takashi Uehara, Satoshi Kakishima, Satoru Morita, Tatsuya Togashi, Kei-ichi Tainaka, Mohan P. Niraula, Beatriz E. Casareto, Yoshimi Suzuki, Jin Yoshimura* "The paradox of enrichment in phytoplankton by induced competitive interactions" Scientific Reports. 3: 2835, 2013.

• Jin Yoshimura*, Hiromu Ito, Donald G. Miller III, Kei-ichi Tainaka "Dynamic decision-making in uncertain environments II. Allais paradox in human behavior" Journal of Ethology. 31(2): 107-113, 2013.

• Jin Yoshimura*, Hiromu Ito, Donald G. Miller III, Kei-ichi Tainaka "Dynamic decision-making in uncertain environments I. The principle of dynamic utility" Journal of Ethology. 31(2): 101-105, 2013.

• Hiromu Ito, Takashi Uehara, Satoru Morita, Kei-ichi Tainaka, Jin Yoshimura* "Foraging behavior in stochastic environments" Journal of Ethology. 31(1): 23-28, 2013. 

2011. 

• Hiromu Ito, Takashi Uehara, Satoru Morita, Kei-ichi Tainaka, Jin Yoshimura* "Slightly male-biased sex ratios for the avoidance of extinction" Evolutionary Ecology Research. 13(7): 759-764, 2011.

2020.

• Nundu S. Sabin, Akintije S. Calliope, Shirley V. Simpson, Hiroaki Arima,  Hiromu Ito Takayuki Nishimura, Taro Yamamoto* "Implications of human activities for (re)emerging infectious diseases, including COVID-19" Journal of Physiological Anthropology. 39: 29, 2020. 

• Jin Yoshimura#, Hiromu Ito# "Comparison between dynamic utility optimization and dynamic programing" Proceedings of IMCIC - ICSIT 2016, pp. 83-86. 

• Jin Yoshimura#, Hiromu Ito# "An Example of the Contradiction between Dynamic Optimization and the Traditional Maximization of Future Expectation" Proceedings of IMCIC - ICSIT 2016, pp. 87-90.

• • 伊東啓, 守田智「なぜ性感染症はなくならないのか─性接触ネットワークの探求」医学のあゆみ（医歯薬出版）288巻6号 pp. 513-517, 2024. 

  • 伊東啓, 重田桂子, 山本太郎, 守田智「性風俗情報サイトの分析による性接触ネットワークの可視化」第22回情報科学技術フォーラム講演論文集 2023. 第4分冊 pp. 89-94, 2023.

  • 伊東啓, 重田桂子, 山本太郎, 守田智「オンラインレビュー（口コミ）サイト分析による全国規模の性接触ネットワークの再構築」情報処理学会第85回大会講演論文集 pp.4-415~4-416, 2023.

  • 吉村仁, 伊東啓, 岡部拓也「動的意思決定と人間行動―アレのパラドックス(Allais paradox) の解法― 」オペレーションズ・リサーチ 67(4): 204-209, 2022.

  • 伊東啓, 谷本潤「ゲーム理論における社会的ジレンマの可視化―互恵ルールがもつ協力行動の促進メカニズム― 」オペレーションズ・リサーチ 67(4): 196-203, 2022.

  • 伊東啓, 吉村仁「周期ゼミの進化―環境変動への適応と生物進化の最適性―」オペレーションズ・リサーチ 67(1): 12-19, 2022.

  • 吉村仁, 岡部拓也, 伊東啓「生物進化における自然選択の最適性―変動環境と幾何平均適応度―」オペレーションズ・リサーチ 67(1): 5-11, 2022.

  • 勝又雄基, 上原隆司, 一ノ瀬元喜, 伊東啓, 吉村仁, 泰中啓一「格子気体モデルによるアユの最適放流方策」 第15回情報科学技術フォーラム講演論文集 2016.  第1分冊 pp. 131-134, 2016.

  • 伊東啓, 柿嶋聡, 上原隆司, 守田智, 小山卓也, 曽田貞滋, John R. Cooley, 吉村仁「エージェントモデルによる周期ゼミの進化メカニズムの解明」情報処理学会第78回大会講演論文集 pp.4-577~4-578, 2016.

  • 伊東啓 「変動環境下における最適採餌行動」数理解析研究所講究録 1937: 64-67, 2015.

  • 菅田紘介, 伊東啓, 上原隆司, 守田智, 吉村仁, 泰中啓一「自動二輪の技術革新シミュレーション」第11 回情報科学技術フォーラム論文集 2012. 第1分冊 pp. 121-123, 2012.

  • 大津武士, 伊東啓, 上原隆司, 守田智, 吉村仁, 泰中啓一「酵母における簡略的齢構成モデル」第11 回情報科学技術フォーラム論文集2012. 第1分冊 pp. 117-120, 2012.

Journal of Theoretical Biology (2); Applied Mathematics and Computation (6); Ecology and Evolution; Chaos, Solitons & Fractals (4); Scientific Reports (2); Environmental Biology and Fishes; Proceedings of the Royal Society A; Journal of the Physical Society of Japan; PLoS ONE (3); Heliyon; Behavioral Ecology and Sociobiology (2); Infectious Disease Modelling; Theory in Biosciences; Evergreen; Physics Open; Tropical Medicine and Health; Spatial and Spatio-temporal Epidemiology;