著者
山田 佳那 松村 佳子
出版者
奈良教育大学教育学部附属教育実践総合センター
雑誌
教育実践総合センター研究紀要 (ISSN:13476971)
巻号頁・発行日
vol.15, pp.61-70, 2006-03-31

This research aims at preventing accidents during experiments in science classes. For the purpose we investigated various accidental instances that happen in past time. And in order to make survey of the kind of accidents that students have met, we sent questionnaires to the students of junior and senior high school, and those of the Nara University of Education. The results indicate that there is a coincidence between the accidents that can potentially happen when performing experiments and the safety guidelines which students suppose to follow. In addition, there are several differences for the students with respect to their grades, because of various surroundings, in the image for science, the safety perception and the dangerous experience. This fact may be due to the conditions which students are living in and the reduction in the science class experiments contents caused by changes in the course curriculums. Considering the current measures taken by the Board of Education and the information gathered about accidents during science experiments, we propose how accidents should be prevented when executing experiments in science classes.
著者
安武 幹雄 高津戸 真広 田村 拓也 山田 佳那 神谷 翼 廣瀬 卓司
出版者
公益社団法人 電気化学会
雑誌
Electrochemistry (ISSN:13443542)
巻号頁・発行日
vol.85, no.12, pp.768-774, 2017-12-05 (Released:2017-12-05)
参考文献数
32
被引用文献数
1

Three kinds of liquid crystalline compounds (AQBD1, AQBD2 and AQBT) having an anthraquinone and a bithiophene moieties were synthesized. The mesophases have been characterized by polarized optical microscopy (POM) observation, differential scanning calorimetry (DSC) and X-ray diffraction (XRD) studies. AQBD1 and AQBT were determined to form colomnar phases while AQBD2 showed a smectic phase. The disc units of the columnar phases of AQBD1 and AQBT were expected to contain 2 and 3 molecules, respectively. The electrochemical properties of AQBT, which keeps the liquid crystalline phase at room temperaure, were examined by cyclic voltammetry (CV) and optoelectrochemical measurements. The reversible electrochemical response of AQBT was confirmed in solution. The reversible color change of EC device prepared from liquid crystalline AQBT (LC-AQBT) was also observed at room temperaure and the positive potentials, which is due to the bithiophene unit.