〈意識的芸術活動〉説・再考 -芥川龍之介の文芸観をめぐって-

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芥川龍之介晩期文芸観の研究 -「詩的精神」と「「話」らしい話のない小説」-

明治大学博士（文学）Article2019thesi

アフガニスタンの現状と子どもたち : アフガニスタンはどこに向かっているのか<文通による対話の試み>

Article特集 : 「反テロ戦争」の中の子ども･非戦･沖縄 : 3 紛争下の子ども：アフガニスタンとパレスチナdepartmental bulletin pape

Corrugated flat band as an origin of large thermopower in hole doped PtSb2

The origin of the recently discovered large thermopower in hole-doped PtSb2 is theoretically analyzed based on a model constructed from first principles band calculation. It is found that the valence band dispersion has an overall flatness combined with some local ups and downs, which gives small Fermi surfaces scattered over the entire Brillouin zone. The Seebeck coefficient is calculated using this model, which gives good agreement with the experiment. We conclude that the good thermoelectric property originates from this “corrugated flat band”, where the coexistence of large Seebeck coefficient and large electric conductivity is generally expected. Good thermoelectric materials are those materials that can transform heat into electricity with high efficiency. The efficiency of thermoelectric materials is characterized by the dimensionless figure of merit, ZT, where T is the temperature, and Z = S2σ/κ with S, σ and κ being the Seebeck coefficient, electric conductivity, and the thermal conductivity, respectively.1 In particular, the product P = S2σ is called the power factor, and a material with large P requires a large S and σ. It is known, however, that materials with large Seebeck coefficient usually have small conductivity, so that good thermoelectric materials are often found in semiconducting materials with rather small amount of carriers. In this context, the discovery of good thermoelectric properties in the sodium cobaltate NaxCoO22 has been of special interest in that a large power factor is observed in a material with large amount of doped holes and thus metallic conductivity. There have been various theoretical studies on this material,3-6 and in particular, one of the present authors along with Arita proposed that a peculiar band shape named the “pudding mold type” (Fig. 1(b)) is the origin of this coexistence of good conductivity and large thermopower.6 Namely in a system having a band with flat portion at the top (or bottom), connecting into a dispersive portion, the Fermi level is kept close to the band edge upon doping, and this gives rise to a large group velocity difference between electrons and holes, resulting in a large Seebeck coefficient. At the same time, the large group velocity of holes due to the dispersive portion of the band gives a large electric conductivity, and this combination results in a large power factor.journal articl

The Legal Status of China's ADIZ in the East China Sea

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Theoretical study of the chemical pressure effect on Tc in the cuprate superconductors

Application of physical pressure on the cuprate superconductors often results in an enhancement of Tc. Motivated by this fact, we study the chemical pressure effect on the single-layered La2CuO4 and HgBa2CuO4 starting from the two-orbital Hubbard model deduced from a first-principles calculation. It is shown that the chemical pressure effects induced by La-site substitution in La2CuO4 or Hg-site substitution in HgBa2CuO4 are not expected to be effective for raising Tc.conference pape

Three-orbital study on the orbital distillation effect in the high Tc cuprates

Our recent study has revealed that the mixture of the dz2 orbital component into the Fermi surface suppresses Tc in the cuprates such as La2CuO4. We have also shown that applying hydrostatic pressure enhances Tc due to smaller mixing of the Cu4s component. We call these the “orbital distillation” effect. In our previous study, the 4s orbital was taken into account through the hoppings in the dx2-y2 sector, but here we consider a model in which of the dx2-y2, dz2 and 4s orbitals are all considered explicitly. The present study reinforces our conclusion that smaller 4s hybridization further enhances Tc.conference pape

Facilitators and Barriers to the Implementation of Functional Behavior Assessment of Student Challenging Behavior at School and Consultations Implemented on that Basis: A Pilot interview study using CFIR（Consolidated Framework for Implementation Research）

激しい自傷行為や他害行為，物壊しといった行動上の問題については，それらの症状が固定化する前に，より早期に機能的行動アセスメント（Functional Behavioral Assessment：以下，FBA）に基づく支援などの効果的な介入が行われることが求められる。日本においても，行動上の問題を有する児童生徒が在籍する特別支援学校でFBAに基づくコンサルテーションが実施され，その効果が報告されている（井上ら, 2023）。しかし，日本の学校現場でこれらの介入が広く普及し日常的に実装されているとは言い難い状況にある。以上から本研究では，学校現場でのFBA及びFBAに基づくコンサルテーション実装のための促進・阻害要因を明らかにすることを目的として，実装研究のための統合フレームワーク（Consolidated Framework for Implementation Research：以下，CFIR）を用いたインタビューのパイロットスタディを行った。結果から，教員間の協力やチームでの実施，管理職が実装内容を熟知した上で推進することなどが実装を促進し，一方で教員特有の職務内容による時間的余裕のなさや専門的な情報を得にくい環境，それらにより専門的な知識を有する教員が少数派であることなどが実装を阻害すると考えられた。For challenging behavior at an early stage, such as severe self-harm, harming others, and destruction of property, before symptoms become embedded, effective interventions, such as support based on Functional Behavior Assessment （FBA） is necessary. In Japan, reports have described the implementation and effectiveness of FBA-based consultations in special-needs schools for students with challenging behavior （Inoue et al., 2023). However, such interventions are not widely implemented in Japanese schools. Therefore, this study aimed to identify facilitators and barriers to the implementation of FBA and FBA-based consultations at special-needs schools by conducting pilot interview study using the Consolidated Framework for Implementation Research (CFIR). The results indicate that implementation is facilitated by cooperation among teachers, team practice, and administrators familiar with FBA, whereas implementation is barriered by a lack of time due to teaching duties, unsuitable environments to obtain specialized information, and fewer teachers with specialized knowledge.Bulletindepartmental bulletin pape

Negative scotopic ERG and photopic ERG ON response impairment in a patient with normal dark adaptation

Purpose: To present ocular findings in a patient who showed negative scotopic electroretinogram (ERG) and reduced ON response, but normal dark adaptation. Case: A 18-year-old Japanese male patient who complained of severe asthenopia. His corrected visual acuities were 1.2 in both eyes. His fundi were normal. He had normal contrast sensitivity and normal dark adaptation. Methods: The patients underwent ERG (including the standard protocol and photopic long flash recordings). Results: The amplitudes of the rod ERG b-wave were reduced. The scotopic standard combined ERG response showed negative configuration. The photopic response to long flash revealed the reduced b-wave (ON response), while the amplitude of the first peak of the d-wave (OFF response) was within the normal range. Conclusions: Postsynaptic abnormalities in both the rod and cone ON-pathways, which are often found in patients with night blindness, were suggested in the ERG findings, but the dark adaptation of our patient was normal. Neuromuscular evaluation of the patient and ophthalmological evaluation, including ERG, of his parents were normal. To our knowledge, the ophthalmological and electrophysiological findings of our patient cannot be attributed to any known clinical entity.journal articl

音声合成における PARCOR 係数と LPC ケプストラムの次数

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