Vol.74, No.1

cover-19-01.jpg■Preface
New Year's Greetings
Hikaru Kawamura......1

■Artificial Intelligence and Physics
Preface......4
Machine Learning: What's Changing and What's Unchanged
Toshihiro Kamishima......5

■Reviews
Direct Observation of Charge Density Distribution―New Development of Precise Structure Analysis Using Synchrotron Radiation X-ray―
Hiroshi Sawa......14

Ferromagnetic Superconductors
Kenji Ishida and Dai Aoki......24

■Researches
A Map of M-Theory?
Sanefumi Moriyama and Tomoki Nosaka......34

Ab initio Strong-Field Physics
Kenichi L. Ishikawa and Takeshi Sato......40

■JPSJ Selected Papers in the Latest Issue......46

■Artificial Intelligence and Physics......48

■Physics Community News......50

■Obituary......51

■Book Reviews......52