Preparation of conducting In-based copper oxide by annealing under high pressure

By annealing InBa_2CuO_4.44 in oxygen at a pressure of 60MPa, a new conducting cuprate InBa_2CuO_4.54 with having a- and c-axis lengths of 4.190A and 8.363A was formed. Its crystal structure was refined by the X-ray Rietveld analysis method. The factors R_wp, R_e, and S were 9.11%, 9.12%, and 1.0, respectively, indicating that the refined structure is an appropriate one. There were four distinct differences between InBa_2CuO_4.44 and InBa_2CuO_4.54. The first was an increase in the oxygen occupancy in the CuO_2 plane; the oxygen occupancy in the CuO_2 plane increased from 26.5% to 27%. The second was a drastic increase in the c-axis length from 8.09A to 8.36A . The third was the inter-substitution of In and Cu. About 35% of In and Cu atoms were substituted each other in the InBa_2CuO_4.54. The fourth was a drastic decrease in the electrical resistivity; the resistivity at room temperature decreased from 28.8MΩcm to 90.3kΩcm. These differences are discussed in connection with the oxygen content in the InBa_2CuO_y.　PACS 74.72.Jt　　key words: CuO_2 layer, Cu valence, high pressure synthesis, nBa_2CuO_y, oxygen content, tetragonal phase, orthorhombic phase

Validity of Clinical Symptoms Score to Discriminate Patients with COVID-19 from Common Cold Out-Patients in General Practitioner Clinics in Japan

Objective: Coronavirus disease 2019 (COVID-19) has spread worldwide, including Japan. However, little is known about the clinical symptoms which discriminate between COVID-19 and non-COVID-19 among outpatients in general practitioner clinics, which is important for efficient case detection. The aim of this study was to investigate the clinical symptoms to discriminate between COVID-19 and non-COVID-19 cases among outpatients in general practitioner clinics during the second wave of the COVID-19 pandemic in Japan in August 2020. Methods: The records of 360 patients who visited a clinic with suspicion of infectious disease and underwent COVID-19 PCR test between 1 and 14 August 2020 were used. The patients filled out a questionnaire on possible clinical symptoms and transmission routes. Multivariate logistic regression was used to investigate the association between clinical symptoms and COVID-19 status. Results: COVID-19-positive patients were 17 (4.7%). Multiple logistic regression analyses showed that anosmia (odds ratio (OR), 25.94 95% confidence interval (CI), 7.15–94.14; p < 0.001), headache (OR, 3.31 95% confidence interval (CI), 0.98–11.20; p = 0.054), sputum production (OR, 3.32 CI, 1.01–10.90; p = 0.048) and history of visiting an izakaya or bar (OR, 4.23 CI, 0.99–18.03; p = 0.051) were marginally significantly associated withbeing COVID-19 positive. This model showed moderate predictive power (area under receiver operating characteristic curve = 0.870 CI, 0.761 to 0.971). Conclusions: We found that anosmia, headache, sputum production, history of visiting an izakaya or bar were associated with COVID-19, which can be used to detect patients with COVID-19 in out-patient clinics in Japan. The findings of this study need to be verified in other clinics and hospitals in Japan and other countries with universal healthcare coverages

Termination of atrial fibrillation by ablation of high-dominant frequency sites adjacent to epicardial adipose tissue

We report an interesting case in which atrial fibrillation (AF) was terminated during ablation of high-dominant frequency (DF) sites covered with epicardial adipose tissue (EAT). High-DF sites are known to be related to the center of focal-firing rotors or local reentry circuits. Therefore, this phenomenon suggests that EAT may be related to the development of dominant rotors maintaining AF

Creative Propositions of e-Judiciary : Focusing on the Civil Court System in Japan

一 はじめに : 企画の趣旨[川嶋]二 裁判手続における「e-ファイリング」の課題と展望[上田]三 サイバー・コートの構想[笠原]四 民事訴訟における「テレビ会議システム」の課題と展望[園田]五 「e-裁判所」構想の課題と展望 : 将来を展望して[川嶋

Additional file 1 of Assessment of clinical relevance of antigen improves diagnostic accuracy of hypersensitivity pneumonitis

Additional file1: Table S1. Exposure Assessment Form (EAF)