S1 and S2 Heart Sound Recognition Using Deep Neural Networks by Chen, Tien-En, Wu, Chau-Chung, Yang, Shih-I, Ho, Li-Ting, Tsai, Kun-Hsi, Chen, Yu-Hsuan, Chang, Yun-Fan, Lai, Ying-Hui, Wang, Syu-Siang, Tsao, Yu

Two Interconvertible Structures that Explain the Spectroscopic Properties of the Oxygen-Evolving Complex of Photosystem II in the S2 State by Pantazis, Dimitrios A., Ames, William, Cox, Nicholas, Lubitz, Wolfgang, Neese, Frank

The Case for S2: The Potential Benefits of the S2 Subunit of the SARS-CoV-2 Spike Protein as an Immunogen in Fighting the COVID-19 Pandemic by Shah, Priyanka, Canziani, Gabriela A., Carter, Erik P., Chaiken, Irwin

SARS-CoV-2 variants with mutations at the S1/S2 cleavage site are generated in vitro during propagation in TMPRSS2-deficient cells by Sasaki, Michihito, Uemura, Kentaro, Sato, Akihiko, Toba, Shinsuke, Sanaki, Takao, Maenaka, Katsumi, Hall, William W., Orba, Yasuko, Sawa, Hirofumi

Constraining nonlocal gravity by S2 star orbits by Dialektopoulos, K. F., Borka, D., Capozziello, S., Borka Jovanović, V., Jovanović, P.

Classical gravitational scattering amplitude at O(G2S1∞S2∞) by Aoude, Rafael, Haddad, Kays, Helset, Andreas

Soluble SARS‐CoV‐2 RBD and human ACE2 peptidase domain produced in Drosophila S2 cells show functions evoking virus–cell interface by Carrión, Federico, Rammauro, Florencia, Olivero‐Deibe, Natalia, Fló, Martín, Portela, María Magdalena, Lima, Analía, Durán, Rosario, Pritsch, Otto, Bianchi, Sergio

Normal congruence of hypersurfaces in S2×S2 by Cho, Jong Taek, Kimura, Makoto

Controllable Synthesis of 2H‐1T′ MoxRe(1‐x)S2 Lateral Heterostructures and Their Tunable Optoelectronic Properties by Sun, Xiaona, Liu, Yang, Shi, Jianwei, Chen, Si, Du, Jiantao, Liu, Xinfeng, Jiang, Chengbao, Yang, Shengxue

On two quotients of S2×S2: On two quotients of S2×S2\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$S ^2\times S^2$$\ end{document} by Bianchi, Andrea

Full observation of ultrafast cascaded radiationless transitions from S2(ππ∗) state of pyrazine using vacuum ultraviolet photoelectron imaging by Horio, Takuya, Spesyvtsev, Roman, Nagashima, Kazuki, Ingle, Rebecca A., Suzuki, Yoshi-ichi, Suzuki, Toshinori

Interface engineering of (Ni, Fe)S2@MoS2 heterostructures for synergetic electrochemical water splitting by Liu, Yunke, Jiang, Shan, Li, Shijin, Zhou, Lei, Li, Zhenhua, Li, Jianming, Shao, Mingfei

Broadly neutralizing anti-S2 antibodies protect against all three human betacoronaviruses that cause deadly disease by Zhou, Panpan, Song, Ge, Liu, Hejun, Yuan, Meng, He, Wan-ting, Beutler, Nathan, Zhu, Xueyong, Tse, Longping V., Martinez, David R., Schäfer, Alexandra, Anzanello, Fabio, Yong, Peter, Peng, Linghang, Dueker, Katharina, Musharrafieh, Rami, Callaghan, Sean, Capozzola, Tazio, Limbo, Oliver, Parren, Mara, Garcia, Elijah, Rawlings, Stephen A., Smith, Davey M., Nemazee, David, Jardine, Joseph G., Safonova, Yana, Briney, Bryan, Rogers, Thomas F., Wilson, Ian A., Baric, Ralph S., Gralinski, Lisa E., Burton, Dennis R., Andrabi, Raiees

Scalar field effects on the orbit of S2 star by Amorim, A, Bauböck, M, Benisty, M, Berger, J-P, Clénet, Y, Coudé du Forest, V, de Zeeuw, T, Dexter, J, Duvert, G, Eckart, A, Eisenhauer, F, Ferreira, Miguel C, Gao, F, Garcia, Paulo J V, Gendron, E, Genzel, R, Gillessen, S, Gordo, P, Habibi, M, Horrobin, M, Jimenez-Rosales, A, Jocou, L, Kervella, P, Lacour, S, Le Bouquin, J-B, Léna, P, Ott, T, Pössel, M, Paumard, T, Perraut, K, Perrin, G, Pfuhl, O, Rodriguez Coira, G, Rousset, G, Straub, O, Straubmeier, C, Sturm, E, Vincent, F, von Fellenberg, S, Waisberg, I, Widmann, F

SARS-CoV-2 mRNA vaccination induces functionally diverse antibodies to NTD, RBD, and S2 by Amanat, Fatima, Thapa, Mahima, Lei, Tinting, Ahmed, Shaza M. Sayed, Adelsberg, Daniel C., Carreño, Juan Manuel, Strohmeier, Shirin, Schmitz, Aaron J., Zafar, Sarah, Zhou, Julian Q., Rijnink, Willemijn, Alshammary, Hala, Borcherding, Nicholas, Reiche, Ana Gonzalez, Srivastava, Komal, Sordillo, Emilia Mia, van Bakel, Harm, Ahmed, Bulbul, Altman, Deena, Amoako, Angela, Awawda, Mahmoud, Beach, Katherine, Bermúdez-González, Carolina, Chernet, Rachel, Eaker, Lily, Fabre, Shelcie, Ferreri, Emily D., Floda, Daniel, Gleason, Charles, Kleiner, Giulio, Jurczyszak, Denise, Matthews, Julia, Mendez, Wanni, Mulder, Lubbertus C.F., Polanco, Jose, Russo, Kayla, Salimbangon, Ashley, Saksena, Miti, Shin, Amber S., Sominsky, Levy, Suthakaran, Sayahi, Wajnberg, Ania, Turner, Jackson S., Bajic, Goran, Simon, Viviana, Ellebedy, Ali H., Krammer, Florian

Are nonsingular black holes with super-Planckian hair ruled out by S2 star data? by Cadoni, M., De Laurentis, M., De Martino, I., Della Monica, R., Oi, M., Sanna, A. P.

Testing horndeski gravity with S2 star orbit by Della Monica, R, de Martino, I, Vernieri, D, de Laurentis, M

Hypersurfaces of S2×S2 with constant sectional curvature by Li, Haizhong, Vrancken, Luc, Wang, Xianfeng, Yao, Zeke

The Flexible Global Ocean-Atmosphere-Land System Model, Spectral Version 2：FGOALS-s2 by 包庆 林鹏飞 周天军 刘屹岷 俞永强 吴国雄 何编 何杰 李立娟 李剑东 李阳春 刘海龙 乔方利 宋振亚 王斌 王军 王鹏飞 王晓聪 王在志 吴波 吴统文 徐永福 于海洋 赵伟 郑伟鹏 周林炯

On two quotients of S2×S2 by Bianchi, Andrea