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Correlation between catalytic activity of supported gold catalysts for carbon monoxide oxidation and metal–oxygen binding energy of the support metal oxides

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Chinese Journal of Catalysis 2016年第10期37卷 1651-1655页

作者： takashi fujita Masanori Horikawa takashi Takei Tom Murayama Masatake Haruta 首都大学东京城市环境科学研究生院应用化学系日本东京192-0397

The effect of a wide variety of metal oxide （MOx） supports has been discussed for CO oxidation on nanoparticulate gold catalysts. By using typical co‐precipitation and deposition–precipitation methods and under identical calcination conditions, supported gold catalysts were prepared on a wide variety of MOx supports, and the temperature for 50%conversion was measured to qualita‐tively evaluate the catalytic activities of these simple MOx and supported Au catalysts. Furthermore, the difference in these temperatures for the simple MOx compared to the supported Au catalysts is plotted against the metal–oxygen binding energies of the support MOx. A clear volcano‐like correla‐tion between the temperature difference and the metal–oxygen binding energies is observed. This correlation suggests that the use of MOx with appropriate metal–oxygen binding energies （300–500 kJ/atom O） greatly improves the catalytic activity of MOx by the deposition of Au NPs.

关键词： Metal oxide-supported gold nanoparticle catalyst Support effects Carbon monoxide oxidation Volcano-like correlation Metal-oxygen binding energy

Benefits of international trauma rotation in South Africa:comparison with a trauma center in Tokyo

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Emergency and Critical Care Medicine 2022年第4期2卷 179-180页

作者： Tsuyoshi Nagao Shinji Nakahara takashi fujita Tetsuya Sakamoto Elmin Steyn Department of Emergency Medicine Teikyo University School of MedicineTokyoJapan Graduate School of Health Innovation Kanagawa University of Human ServicesKawasakiJapan Department of surgery Stellenbosch University and Tygerberg HospitalCape TownSouth Africa.

International rotations have been an option for young surgeons who face difficulties in obtaining sufficient trauma training in their own coun*** of the authors attended training in trauma surgery in South Africa for 6 months,where there are many trauma caseloads,and could experience the number of emergency operations equivalent to approximately 5 years in *** rotation allows trainees to expose clinical practices intensively and to learn principles and theories of care under experienced academic *** the other hand,they could contribute to the host hospital as part of the workforce and by assisting young surgical *** development of a more systematic and formalized framework for staff exchange between developed and developing countries will provide mutual benefits to both sides.

关键词： Low-and middle-income countries On-the-job training Trauma surgery

Investigation of the Aroma Profile of Green Tea Leaves Using Organic Synthesis and Conventional Analytical Techniques

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Journal of Food Science and Engineering 2014年第1期4卷 10-20页

作者： Toshio Hasegawa takashi fujita Yasutsugu Tsukumo takashi Fujihara Daisuke Jing Atsushi Takahashi Kenta Nakajima Graduate School of Science and Engineering Saitama University Saitama 338-8570 Japan Faculty of Science Saitama University Saitama 338-8570 Japan Green Tea Laboratory Saitama Prefectural Agriculture and Forestry Research Center Saitama 358-0042 Japan

Although many aroma components have been identified in green tea leaves, the aroma compounds contributing to green tea＇s characteristic odor have not yet been reported. The authors recently reported that aroma components with a matcha-like odor are present in both green tea and black tea prepared from the Sayamakaori tea cuttivar. This matcha-like odor is similar to the odor of commercial available matcha （high-quality powdered green tea）, and is a specific odor feature of green tea leaves. At present, the green-tea odor is thought to arise from the combination of a large number of constituents. Recent reports indicate that a complex interaction between olfactory receptors and odorants is important for the evaluation of the odors. Taking into consideration these findings, the authors investigated the aroma profile of green tea, focusing on the characteristic molecular structures of the constituents that give matcha-like odor. Using a combination of organic synthesis and gas chromatography-mass spectrometry plus gas chromatography-olfactometry, the authors identified aroma components with matcha-like odors in five other tea cultivars. This investigation also revealed that several compounds with a formyl group were important constituents of the aroma of green tea leaves, although the odor of each constituent was not individually similar to the tea＇s overall aroma. The authors found for the first time a group of key components that have the matcha-like odor.

关键词： Aroma profile green tea leaves matcha-like odor formyl group aldehyde complex odor.

Utility of Tracing as a Memory Storage Method

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World Journal of Neuroscience 2017年第2期7卷 216-222页

作者： Makana Tsutsui Masako Notoya Daisuke Kimura Ken Nakatani takashi fujita Nobuyuki Sunahara Katsumi Inoue Japanese Red Cross Kanazawa Hospital Ishikawa Japan Health Medical Department Kytogakuen University Kyoto Japan Department of Rehabilitation Sciences Faculty of Allied Health Sciences Kansai University of Welfare Sciences Osaka Japan Division of Occupational Therapy Faculty of Care and Rehabilitation Seijoh University Aichi Japan School of Health Sciences College of Medical Pharmaceutical and Health Sciences Kanazawa University Ishikawa Japan

Although many studies have explored the utility of tracing as a rehabilitation approach for patients with aphasia and alexia and for Japanese patients with various disabilities, this may be the first study to demonstrate the superiority of tracing over copying for enhancing long-term memory. We investigated the utility of tracing as a memory storage method. Young and elderly participants learned a figure from the Rey-Osterrieth complex figure test by copying or tracing its outline. They were asked to reproduce the figure after 3 min and 3 days. Although the copying group performed better than the tracing group in immediate recall after 3 min, the performance of the tracing and copying groups after 3 days was similar. Among younger participants, the tracing group achieved higher scores than the copying group after 3 days;however, the difference was not statistically significant. Copying as a learning strategy has a substantial temporal gradient of memory loss;tracing may be more appropriate for improving long-term memory. This result could have considerable practical usefulness, e.g., among professionals who provide memory training for the elderly. Tracing, which uses visuomotor memory, is acquired earlier than transcription. Tracing may be effective for rehabilitation because it is a developmentally appropriate approach to early instruction.

关键词： Visual Memory Learning Long-Term Memory

Head Position of Patients with Right Hemisphere Damage during a Visual Search Task in a Large Field

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World Journal of Neuroscience 2018年第2期8卷 190-202页

作者： Ken Nakatani Shusuke Takahashi Daisuke Kimura Masako Notoya Nobuyuki Sunahara takashi fujita Minoru Toyama Shinya Fukunaga Naoe Mori Kiyoe Sakai Shinya Fuwa Department of Rehabilitation Sciences Kansai University of Welfare Sciences Osaka Japan Department of Living and Welfare Faculty of Home Economics Kyoto Women’s University Kyoto Japan Department of Speech and Hearing Sciences and Disorders Kyoto Gakuen University Kyoto Japan School of Health Sciences College of Medical Pharmaceutical and Health Sciences Kanazawa University Kanazawa Japan Division of Occupational Therapy Faculty of Care and Rehabilitation Seijoh University Tōkai Japan Department of Sensory Science Faculty of Health Science and Technology Kawasaki University of Medical Welfare Kurashiki Japan

Spatial neglect syndrome with cerebral lesions is characterized by the ina-bility to orient, report, or respond to relevant visual stimuli contralateral to the lesions. In this study, we investigated the pattern of horizontal visual search in a large space;this search was performed by patients with right hemisphere damage caused by cerebrovascular disease. The neck rotation angle and search time in each increment were continuously recorded during the task, and quantitative data of the measurements were collected. Head position during the visual search task in a large space (%) was then calculated. We set angular bands in increments of 5 degrees from the midline on the left and right sides, and calculated the total search time in each angular band. In patients with unilateral spatial neglect (USN), the search time in the angular band of 5 - 9 on the right side was significantly longer (with USN 16.7%, without USN 4.5%, t = 2.52, df = 16, p < 0.05). Furthermore, in patients with neglect in the leftmost end area in a large space, the search time was significantly shorter in the angular band of 1 - 4 degrees to the left (with neglect 13.1%, without neglect 23.7%, t = 2.13, df = 16, p < 0.05), and tended to be long in the angular band of 5 - 9 to the right. The neck rotation angle and pattern during the search task in a large field deviated slightly to the right, and the search time slightly to the left was short. We believe that these results support the rightward deviation of the search pattern and frame of USN patients.

关键词： Head Position Neck Rotation Angle Unilateral Spatial Neglect Visual Exploration

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多股钢丝帘线初始伸长的有限元评估

轮胎工业 2014年第10期34卷 605-608页

作者： takashi fujita Shoichi OOHASHI Toshimi TARUI 刘湘慧冯国兵 Bar & Wire Rod Research Lab Steel Research Laboratories 20-1ShintomiFuttsuChiba 293-8511Japan 江苏兴达钢帘线股份有限公司

当拉伸一个包含多个元件的结构件时,会产生初始伸长,在许多制造过程中,初始伸长的影响显著。在轮胎生产过程中,嵌有钢丝帘线的胎坯放置到花纹模腔中进行压制,以得到相应的胎面花纹。在此过程中,橡胶中的帘线被拉伸。因此,生产过程中轮... 详细信息

当拉伸一个包含多个元件的结构件时,会产生初始伸长,在许多制造过程中,初始伸长的影响显著。在轮胎生产过程中,嵌有钢丝帘线的胎坯放置到花纹模腔中进行压制,以得到相应的胎面花纹。在此过程中,橡胶中的帘线被拉伸。因此,生产过程中轮胎中的帘线会有约百分之几的初始伸长。然而,轮胎制成后,帘线不会出现初始伸长。

关键词：钢丝帘线伸长有限元评估生产过程胎面花纹制造过程结构件

Light is an Important Limiting Factor for the Vertical Distribution of the Largest Extant Benthic Foraminifer Cycloclypeus carpenteri

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Journal of Earth Science 2022年第6期33卷 1460-1468页

作者： Kazuhiko fujita Yoji Kanda takashi Hosono Department of Physics and Earth Sciences University of the RyukyusOkinawa903-0213Japan Tropical Biosphere Research Center University of the RyukyusOkinawa903-0213Japan Japan Agency for Marine-Earth Science and Technology(JAMSTEC) Global Oceanographic Data Center(GODAC)Kanagawa236-0001Japan

Cycloclypeus carpenteri is the largest extant benthic foraminifer,dwelling in the deep euphotic zone(a water depth between 60 and 130 m)of the warm oligotrophic Indo-West *** foraminifer harbors diatom endosymbionts and the foraminifer-microalgal association acts like a *** verify that light is an important limiting factor controlling the vertical(depth)distribution of living Cycloclypeus holobionts,their physiological responses to light intensity were examined by short-term metabolic measurements and long-term *** oxygen production(OP)rates measured under different light levels using an oxygen microelectrode indicate that Cycloclypeus holobionts are daily net primary producers adapted to low light levels,with slight photoinhibition(reduced net OP rates relative to a light-saturated rate)over 100μmol photons m^(−2)s^(−1).Long-term growth increments of asexually reproduced juveniles incubated for two months at different light levels ranging from 0 to 100μmol photons m^(−2)s^(−1) show that Cycloclypeus holobionts are adapted to a low light level(∼5μmol photons m^(−2)s^(−1)),but can be acclimatized to a certain low light ranges(<50μmol photons m^(−2)s^(−1)).These experimental results confirm that light is an important environmental gradient affecting the vertical distribution of Cycloclypeus holobionts.

关键词： algal symbiosis diatom large benthic foraminifer oxygen production photosynthesis

Solitary recurrence of hilar cholangiocarcinoma in a mediastinai lymph node two years after curative resection

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World Journal of Gastroenterology 2007年第15期13卷 2243-2246页

作者： Yuichiro Ito Yoshitsugu Tajima Fumihiko fujita Ryuji Tsutsumi Tamotsu Kuroki takashi Kanematsu Department of Transplantation and Digestive Surgery Nagasaki University Graduate School of Biomedical Sciences 1-7-1 SakamotoNagasaki 852-8501Japan

We recently encountered an unusual case of hilar cholangiocarcinoma in which a solitary recurrence in a mediastinal lymph node occurred two years after curative resection of the primary tumor. A 64-year old woman was admitted to our hospital with a complaint of right hypochondrial discomfort. After imaging studies demonstrated a hilar cholangiocarcinoma in the left hepatic duct, a curative resection of the tumor was performed, consisting of a left hepatic lobectomy along with caudate lobectomy, regional lymph node dissection, and resection of the extrahepatic bile duct. No nodal metastasis was observed histologically. Two years after surgery, the patient was found to have a nodule in the posterior mediastinum, which was thoracoscopically resected. No other swollen lymph nodes, local recurrence, or distant metastasis were noted. Histologically, the nodule proved to be a metastatic lymph node, and adjuvant chemoradiation therapy was initiated. The patient remained well for the four years following her first operation and had no evidence of disease recurrence 28 mo after her second operation. To our knowledge, this case is the first report of solitary recurrence in a mediastinal lymph node after curative resection of hilar cholangiocarcinoma.

关键词： Lymph node metastasis lediastinum Hilar cholangiocarcinoma

Precision surgical approach with lymph-node dissection in early gastric cancer

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World Journal of Gastroenterology 2019年第14期25卷 1640-1652页

作者： Shinichi Kinami Naohiko Nakamura Yasuto Tomita takashi Miyata Hideto fujita Nobuhiko Ueda Takeo Kosaka Department of Surgical Oncology Kanazawa Medical University

The gravest prognostic factor in early gastric cancer is lymph-node metastasis,with an incidence of about 10% overall. About two-thirds of early gastric cancer patients can be diagnosed as node-negative prior to treatment based on clinicpathological data. Thus, the tumor can be resected by endoscopic submucosal dissection. In the remaining third, surgical resection is necessary because of the possibility of nodal metastasis. Nevertheless, almost all patients can be cured by gastrectomy with D1+ lymph-node dissection. Laparoscopic or robotic gastrectomy has become widespread in East Asia because perioperative and oncological safety are similar to open surgery. However, after D1+ gastrectomy,functional symptoms may still result. Physicians must strive to minimize postgastrectomy symptoms and optimize long-term quality of life after this *** on the location and size of the primary lesion, preservation of the pylorus or cardia should be considered. In addition, the extent of lymph-node dissection can be individualized, and significant gastric-volume preservation can be achieved if sentinel node biopsy is used to distinguish node-negative *** the surgical treatment for early gastric cancer may be less radical than in the past, the operative method itself seems to be still in transition.

关键词： Stomach neoplasms surgery Gastrectomy methods Recovery of function Sentinel lymph node surgery Gastric cancer