Vol.78, No.4

cover-23-04.jpg■Preface
What is the Proper Size of JPS? ―At Inauguration of JPS President
Shuji Hasegawa......177

■Overview Articles
ODE/IM Correspondence―A Mysterious Relation between Ordinary Differential Equations and Quantum Integrable Models
Katsushi Ito......180

Cosmic Dark Ages with Neutral Hydrogen 21 cm Line
Daisuke Yamauchi......190

■Researches
Formation of Giant Vortices of Fish by Topological Interactions
Susumu Ito and Nariya Uchida......198

Recent Progress on the Study of Quantized Vortices and Quantum Hydrodynamics with Optical Methods
Yosuke Minowa......204

■The Path to History
How Did the New Sensitivists Perceive the New Physics?
Yumezo Kato......209

■La Toccata
67th Condensed Matter Physics Summer School
Yuga Ihara......213

YONUPA Summer School 2022 Event Report
Shota Kikuchi and Shuichi Murayama......214

Event Report: The 52nd Summer School on Astronomy and Astrophysics
Kohki Uno......215

The 62nd SUMMER SCHOOL by Society of Young Scientists in Biophysics
Shiori Iida......216

■JPSJ Selected Papers in the Latest Issue......217

■PTEP Selected Papers in the Latest Issue......219

■Physics Community News......221

■Obituary......222

■Book Reviews......223