The analysis of reasons for children's not being able to be understood in school: in the experiences of student teaching

教育実習を終えた大学生に対して「子どもを理解できなかった場面」について報告してもらい、問題の所在、学校の生活時間帯、彼らの状況的立場、推測した要因等から分析を行い、実習期間中の子どもに対する理解の方法や生徒指導のあり方及び大学における教育相談関連科目のあり方について検討した

Formation of Si Nanowires by Direct Electrolytic Reduction of Porous SiO₂ Pellets in Molten CaCl₂

The effects of starting material and catalyst on the morphology of produced Si have been investigated for the direct electrolytic reduction of porous SiO₂ pellets in molten CaCl₂ at 1123 K. The Si nanowires (SiNWs) were produced using amorphous SiO₂ pellets with a tetrapod-like microstructure as the starting material, whereas plate-like Si was obtained from pellets made of spherical fumed SiO₂. The SiNWs showed irregular branching and a wide distribution of diameters as the electrolysis proceeded. On the other hand, elongated SiNWs were formed during the electrolysis of pellets comprised of Au nanoparticles (AuNPs) and tetrapod-like microstructured SiO₂ powder. This suggests that AuNPs work as catalysts for longitudinal nanowire growth in the present electrolytic process