坂牛研で葛飾区の川の研究をしていたウィーン工科大のアリアナから帰国してウィーン工科大に提出した修士論文が届けられた。量より質が大事とはいえ、日本の修論は言葉が貧弱。英語3万語（日本語6万字）図版60ページ。グラフィックデザインもよくできている。日本の学生、見習わないと。Ariana from the Vienna University of Technology was researching rivers in Katsushika Ward at the Sakaushi Lab, has returned to Vienna and submitted her master's thesis to Vienna University of Technology. While quality is more important than quantity, Japanese master's theses tend to be poorly written. It's 30,000 words in English (60,000 characters in Japanese) and 60 pages of illustrations. The graphic design is also excellent. Japanese students should learn from the thesis.