- 著者
- He SUN Lina SUN Takashi SUGIURA Matthew S. WHITE Philipp STADLER Niyazi S. SARICIFTCI Akito MASUHARA Tsukasa YOSHIDA
- 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.5, pp.253-261, 2017-05-05 (Released:2017-05-05)
- 参考文献数
- 31
- 被引用文献数
- 14
Microwave-assisted hydrothermal synthesis of ZnO nanocrystals has resulted in two distinctive structures: hexagonal bi-pyramidal (HBP) and nano-sheet (NS) shapes from Zn(CH3COO)2 solutions containing triethanolamine or benzene tetracarboxylic acid as structure directing agents, respectively. Observation by field-emission scanning electron microscope, high resolution transmission electron microscope as well as analysis of selected area electron beam diffraction patterns revealed that the predominantly exposed facets of HBP and NS ZnO are (102) and (100) faces, occupying 84 and 76% of the total surface area, respectively. Adsorption of D149 and eosin Y photosensitizer dyes onto HBP and NS ZnO was studied in comparison with a randomly structured commercial ZnO nanocrystal (MZ). Density of dye packing was found to be in the order of HBP > MZ > NS, for which HBP was 2 to 5 times higher than NS. Consequently, dye-sensitized solar cells employing HBP ZnO exhibited the highest short circuit photocurrent, but also the lowest open circuit voltage. By contrast, the DSSCs employing NS ZnO exhibited the highest voltage among the three.
- 著者
- Daiki Watanabe Tsukasa Yoshida Yuya Watanabe Yosuke Yamada Motohiko Miyachi Misaka Kimura the Kyoto-Kameoka Study Group
- 出版者
- Japan Epidemiological Association
- 雑誌
- Journal of Epidemiology (ISSN:09175040)
- 巻号頁・発行日
- vol.33, no.12, pp.591-599, 2023-12-05 (Released:2023-12-05)
- 参考文献数
- 42
- 被引用文献数
- 2
Background: Whether sleep quality and duration assessed from multiple domains, either individually or in combination, are strongly associated with mortality risk in older adults remains unelucidated. We aimed to clarify these relationships.Methods: We enrolled 7,668 older (age ≥65 years) Japanese adults in the Kyoto-Kameoka prospective cohort study who provided valid responses to the Pittsburgh Sleep Quality Index (PSQI) in a mail-in survey. Sleep quality and duration were classified into six groups using the previously validated PSQI: short sleep duration (SSD: <360 min/day)/sleep disturbance (SD: ≥5.5 PSQI points), n = 701; SSD/non-sleep disturbance (NSD: <5.5 PSQI points), n = 100; optimal sleep duration (OSD: 360–480 min/day)/NSD, n = 1,863; OSD/SD, n = 2,113; long sleep duration (LSD: >480 min/day)/NSD, n = 1,972; LSD/SD, n = 919. Mortality data were collected from February 15, 2012, to November 30, 2016. We evaluated the relationship between all-cause mortality risk and sleep quality and duration (and their combinations) using a multivariable Cox proportional hazards model that included baseline covariates.Results: The median follow-up period was 4.75 years (34,826 person-years), with a total of 616 deaths. After adjusting for confounders, compared with other groups, SSD/SD and LSD/SD had the highest hazard ratio (HR) of mortality (SSD/SD: HR 1.56; 95% confidence interval [CI], 1.10–2.19; SSD/NSD: HR 1.27; 95% CI, 0.47–3.48; OSD/NSD: reference; OSD/SD: HR 1.20; 95% CI, 0.91–1.59; LSD/NSD: HR 1.35; 95% CI, 1.03–1.77; LSD/SD: HR 1.83; 95% CI, 1.37–2.45). However, mortality risk was not associated with the interaction between sleep quality and duration.Conclusion: Older adults with sleep disturbances involving SSD and LSD have a strong positive association with mortality risk, suggesting an additive effect between sleep quality and duration.
- 著者
- Kazunori Sato Eku Hirai Tomomi Sukigara Tsukasa Yoshida Noriaki Aita Eriko Kitahara Yoshihide Hokari Toshiyuki Fujiwara
- 出版者
- JAPANESE PHYSICAL THERAPY ASSOCIATION
- 雑誌
- 理学療法学Supplement
- 巻号頁・発行日
- pp.E-141_2, 2019 (Released:2019-08-20)
【Background/Purpose】 The deep brain stimulation of subthalamic nucleus (STN-DBS) is a surgical treatment for Parkinson's disease (PD) to reduce off-state. There have been scarce reports that indicate the effectiveness of postoperative rehabilitation on the axial symptoms. The purpose of this study is to examine the effectiveness of postoperative rehabilitation in PD patients.【Methods or Cases】 The data of 31 postoperative PD patients who received 2 week physical therapy from May 2017 to May 2018 were extracted from a prospectively maintained database, and were analyzed retrospectively. Outcome measures were the Mini-Balance Evaluation Systems Test (Mini-BESTest), Trunk impairment scale (TIS), Leg extension torque, 10 times toe tapping (10TTT) and Treadmill gait analysis. The patients were evaluated at pre-operation, post-operation and discharge period. One-way repeated measures analysis of variance (ANOVA) and post-hoc Paired t-tests with Bonferroni adjustment for multiple comparison were used to analyze the data (P < 0.05).【Results】 The ANOVA showed that all clinical data had the significant differences among three periods. The post hoc test revealed that there were significant differences between pre-operation and discharge periods in the Mini-BESTest (P < 0.0001), TIS (P < 0.0001), Step length on the Treadmill (P=0.004) and 10TTT (P=0.009), but the lower limb extension torque (P=0.11). There was only significantly different between pre-operation and post-operation in the Step length on the Treadmill (P=0.032). 【Discussion/Conclusion】 The results showed that postoperative rehabilitation has a positive effect on the balance ability, trunk function, gait function and limb akinesia of the PD patients. These facts might indicate that STN-DBS and postoperative rehabilitation provide different effects on the PD patients.【Ethical consideration】This study was conducted with the declaration of Helsinki. This study was approved by the institutional ethics review board (JHS 18-007).