Review Systematic Study of Convex Pentagonal Tilings, I: Case of Convex Pentagons with Four Equal-length Edges Teruhisa Sugimoto and Tohru Ogawa Forma, Vol. 20 (No. 1), pp. 1-18, 2005 [Abstract] | [Full text] (PDF 5.2 MB) | [Attractive image Fig.1, Fig.2] Analysis and Evaluation for Trajectories of Paramecia Shuntaro Shinohara, Toshihiro Akiyama, Shingo Ishiwata and Osamu Hirayama Forma, Vol. 20 (No. 1), pp. 19-38, 2005 [Abstract] | [Full text] (PDF 10.7 MB) | [Attractive image Fig.3, Fig.11] Letter Experiments for Stick-Slip Motions in One-dimensional Mass-Spring Systems Takayuki Higuchi, Hideaki Kurihara and Osamu Hirayama Forma, Vol. 20 (No. 1), pp. 39-46, 2005 [Abstract] | [Full text] (PDF 786 KB) | [Attractive image Fig.1, Fig.3, Fig.5]