■Preface
Future Issues in JPS
Hirokazu Tamura......71

■Overview Articles
New Stream in Nuclear Astrophysics and High Density QCD
Toru Kojo......74

■Researches
Neutron Crystallography for the Understanding of Enzymatic MechanismsYohta Fukuda, Yu Hirano, Tsuyoshi Inoue, and Taro Tamada......83

Quantum Many-Body Physics of Open Systems in Ultracold AtomsMasaya Nakagawa, Naoto Tsuji, Norio Kawakami, and Masahito Ueda......88

Metallurgical Study of a Japanese Sword by Using Neutrons and Muons
Yoshiaki Kiyanagi......93

■Crossroad
History of Sign Convention of Isospin
Tomoya Naito, Koichi Hagino, and Yoshihiko Kobayashi......99

Establishment of e-CSTI Database to Pursue Evidence Based Policy Making（EBPM）
Iwao Miyamoto......103

■JPSJ Selected Papers in the Latest Issue......108

■PTEP Selected Papers in the Latest Issue......110

■La Toccata
My Job Hunting―From Doctoral Course to Startup Company
Kohji Nishimura......112

■Reports on JPS Meeting......114

■Physics Community News
The Nobel Prize in Physics 2021......122
Ryogo Kubo Memorial Prize 2021......123

■Book Reviews......125

■News from Jr. Session Committee......126