著者
都筑 学 宮崎 伸一 村井 剛 早川 みどり 飯村 周平
出版者
中央大学保健体育研究所紀要編集委員会
雑誌
中央大学保健体育研究所紀要 (ISSN:09104046)
巻号頁・発行日
vol.37, pp.7-33, 2019-06-25

This study aimed to examine how university students use SNS (Social Networking System) and which psychological factors effect on their SNS utilization . The participants were 720 undergraduate students in Chuo university. They were asked to complete web questionnaire which consisted of the following questions; (a) possession of account of LINE, Twitter, Instagram and Facebook, (b) utilization time per day for LINE, Twitter, Instagram and Facebook, (c) utilization frequency per week for LINE, Twitter, Instagram and Facebook, (d) the degree of importance for using LINE, Twitter, Instagram and Facebook, (e) Smartphone dependency scale for use with Japanese university students (Matsushima, etc., 2017), (f) Praise seeking and rejection avoidance need scales (Kojima, Ota & Sugawara, 2003), (g) Critical thinking disposition scale (Hirayama & Kusumi, 2004) and (h) Attitude for SNS contribution. The obtained findings showed that all of students used LINE and nearly 80 percent of students simultaneously used LINE, Twitter and Instagram. Utilization frequency and time of four SNS were tended to have positive correlation with each other. SNS utilization frequency and time were positively related with Smartphohe dependency and praise seeking, but negatively related with critical thinking disposition. Three cluster of SNS utilization were extracted by laten profile analysis. Finally, psychological function of using SNS and implication of the obtained results was discussed.
著者
小早川 みどり
出版者
日本魚類学会
雑誌
魚類学雑誌 (ISSN:00215090)
巻号頁・発行日
vol.39, no.1, pp.25-36, 1992-06-15 (Released:2010-06-28)
参考文献数
15

日本産のナマズ3種ナマズ (Silurus asotus), イワトコナマズ (S. lithophilus), ビワコオオナマズ (S. biwaensis) の成体の頭蓋と懸垂骨を比較し, それらの発生を記載した.稚魚期の成長の速いビワコオオナマズでは, 他2種に比べ化骨の時期が早く, 上後頭骨の矢状隆起の発達の度合いや, 翼耳骨の側上方への反り返りが大きく, 懸垂骨にみられる筋付着突起の発達も著しかった.