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Brand-new nanoporous materials with a liquid-crystal transition point at room temperature for on-site gas supply systems
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Trends in Problem Discovery and Problem Solving among Elementary and Junior High School Students in Project-Based Learning with AI Programming
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Language Activities to Cultivate Qualities and Abilities in Japanese Language Education: Practice and Reflection on a Unit Creating Book Bands for an Essay
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Precise analyses of photoelectrochemical reactions on particulate Zn0.25Cd0.75Se photoanodes in nonaqueous electrolytes using Ru bipyridyl complexes as a probe
Get PDFRecombination of photoexcited carriers at interface states is generally believed to strongly govern the photoelectrochemical (PEC) performance of semiconductors in electrolytes. Sacrificial reagents (e.g., methanol or Na2SO3) are often used to assess the ideal PEC performance of photoanodes in cases of minimised interfacial recombination kinetics as well as accelerated surface reaction kinetics. However, varying the sacrificial reagents in the electrolyte means simultaneously changing the equilibrium potential and the number of electrons required to perform the sacrificial reaction, and thus the thermodynamic and kinetic aspects of the PEC reactions cannot be distinguished. In the present study, we propose an alternative methodology to experimentally evaluate the energy levels of interfacial recombination centres that can reduce PEC performance. We prepare nonaqueous electrolytes containing three different Ru complexes with different bipyridyl ligands; redox reactions of Ru complexes represent one-electron processes with similar charge transfer rates and diffusion coefficients. Therefore, the Ru complexes can serve as a probe to isolate and evaluate only the thermodynamic aspects of PEC reactions. Recombination centres at the interface between a nonaqueous electrolyte and a Zn0.25Cd0.75Se particulate photoanode are elucidated using this method as a model case. The energy level at which photocorrosion proceeds is also determined.journal articl
Complication of Computer Tomography-Guided Pre-Video-Assisted Thoracoscopic Surgery (VATS) Marking While Breath-Holding During Exhalation
Get PDFPurpose : Computed tomography (CT)-guided marking is performed to assist nodule localization before videoassisted thoracoscopic surgery. Several complications associated with CT-guided marking, such as pneumothorax, pulmonary hemorrhage, and air embolism, have been reported. Air embolism is an infrequent but serious complication. We hypothesized that CT-guided marking while breath-holding during exhalation might be effective in preventing air embolism. This study aimed to validate the safety and efficacy of CT-guided marking while breath-holding during exhalation. Methods : This retrospective study was performed in 90 patients, who underwent 93 CT-guided marking procedures while breath-holding during exhalation for 93 nodules between July 1997 and January 2023. CT and clinical findings regarding pneumothorax, intrapulmonary hemorrhage, and air embolism were assessed. Risk factors for complications were evaluated by univariate and multivariate analysis. Results : Pneumothorax and intrapulmonary hemorrhage were observed in 62 and 34 patients (66.7 and 36.6 ％), respectively. No air embolism was observed. A smaller nodule diameter and longer puncture distance were independent risk factors for pulmonary hemorrhage, while there were no independent risk factors for pneumothorax to clarify when to place a hook-wire while breath-holding during exhalation. Conclusion : CT-guided marking while breath-holding during exhalation showed no air embolism or serious complications and seems effective in preventing air embolism.Article信州医学雑誌 72(1) : 61-67, (2024)journal articl
「信州 知の連携フォーラム（第６回）」報告：資料のデジタルアーカイブ化と公開について―松澤宥アーカイブの信州デジタルコモンズでの公開を事例にー
Get PDFArticle信州大学附属図書館研究 13 : 97-106, (2024)departmental bulletin pape
A Clothing Study Room That Brings Out Children’s Creativity: Necessary Elements Based on Teacher Survey
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子どもが科学するということ ―A.R.ルリヤの Romantic Science を手がかりに―
Get PDFArticle令和5年度 信州大学大学院教育学研究科高度教職実践専攻（教職大学院）実践研究報告書抄録集 : 5-8, (2024)departmental bulletin pape
学び続ける子どもと教師を支えるカリキュラムマネジメント ―カリキュラム開発における評価と改善のプロセスの考察を通して―
Get PDFArticle令和5年度 信州大学大学院教育学研究科高度教職実践専攻（教職大学院）実践研究報告書抄録集 : 69-72, (2024)departmental bulletin pape