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Correlation between travel experiences and post-COVID outbound tourism intention:a case study from China

Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2023年第11期24卷 1003-1016页

作者： Yilin SUN Yinan DONG Dianhai WANG EOwen DWAYGOOD Hamed NASERI Kazuo nishii College of Civil Engineering and Architecture Zhejiang UniversityHangzhou 310058China Architectural Design and Research Institute Zhejiang UniversityHangzhou 310028China Alibaba-Zhejiang University Joint Research Institute of Frontier technologies Zhejiang UniversityHangzhou 310058China Polytechnic Institute Zhejiang UniversityHangzhou 310015China Center for Balance Architecture Zhejiang UniversityHangzhou 310028China Department of Civil Geotechnicaland Mining EngineeringPolytechnique MontréalMontréalH3T 1J4Canada Department of Policy Studies University of Marketing and Distribution SciencesKobe651-2188Japan

the COVID-19 pandemic has devastated global tourism and recovery is proceeding very slowly.For many countries,tourism served as a major economic sector,so investigating how to recover is essential.As China was the largest source of outbound travelers before the outbreak,study of the factors influencing Chinese intentions to travel overseas in the post-COVID era is revealing.In Apr.2022,among seven provinces(or cities)with the most outbound tourists from 2019 to 2021,2450 individuals responded to a questionnaire on daily mobility,tourism experiences,and the shifts due to the pandemic.Light gradient boosting machine(LightGBM),a robust ensemble learning method,was adopted to quantify and visualize the impact of explanatory factors on outbound travel intention.In addition,the Optuna mechanism and Shapley additive explanation(SHAP)instruments were employed for tuning hyperparameters and interpreting results,respectively.Findings suggest neither one-day nor multi-day tours have resumed to pre-COVID levels.Higher frequency of multi-day tours with further destinations,less car utilization in daily shopping trips,and moderate pandemic restrictions can boost the intention to travel abroad.the concerns and desires of different age groups for overseas travel need different responses.this study reveals the factors affecting Chinese outbound travel intentions and provides suggestions for the recovery of tourism in the post-COVID period.

关键词： Outbound tourism touring behavior travel behavior COVID-19 Ensemble learner

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Massive low-grade myxoid liposarcoma of the floor of the mouth:A case report and review of literature

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World Journal of Clinical Cases 2022年第34期10卷 12742-12749页

作者： takuma Kugimoto Yuko Yamagata toshimitsu Ohsako Hideaki Hirai Naoto nishii Kou Kayamori tohru Ikeda Hiroyuki Harada Department of Oral and Maxillofacial Surgical Oncology Division of Oral Health ScienceGraduate School of Medical and Dental SciencesTokyo Medical and Dental UniversityBunkyo-ku 113-8549TokyoJapan Department of Oral Pathology Division of Oral Health ScienceGraduate School of Medical and Dental SciencesTokyo Medical and Dental UniversityBunkyo-ku 113-8549TokyoJapan

BACKGROUND Oral liposarcoma is an extremely rare lesion that is often clinically misdiagnosed as a benign tumor due to its asymptomatic and indolent clinical course.Here,we report a case of massive low-grade myxoid liposarcoma(MLS)of the floor of the mouth.CASE SUMMARY A 71-year-old man presented with a huge mass in the left floor of the mouth.A biopsy was performed,and a diagnosis of a myxoid tumor suspicious for lowgrade MLS or myxoma was made.Gadolinium-enhanced t1-weighted magnetic resonance imaging showed an intensely enhanced tumor lesion that occupies the left sublingual space and extends to the submandibular space.Submandibular dissection,tumor resection,and reconstruction with a radial forearm flap were performed.the surgical specimen exhibited histologically low-grade MLS.Fused in sarcoma(FUS,also known as tLS)and DNA damage-inducible transcript 3(DDIt3,also known as CHOP)break-apart was not detected in the fluorescence in situ hybridization analysis.the tumor was completely encapsulated and did not require additional treatment.Furthermore,no recurrence was reported 40 mo after surgery.CONCLUSION We experienced an extremely rare,massive,low-grade MLS emerging from the floor of the mouth.Oftentimes,an MLS of the floor of the mouth lacks significant clinical findings and is often misdiagnosed.Although no FUS-DDIt3 fusion gene was detected,a low-grade MLS was ultimately diagnosed based on the histological findings.

关键词： Myxoid liposarcoma Floor of mouth Surgery Fluorescence in situ hybridization Sublingual space Case report

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基于深度学习的Ct心肌延迟强化后处理图像的降噪

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国际医学放射学杂志 2022年第6期45卷 734-735页

作者： t.nishii t.Kobayashi H.tanaka A.Kotoku Y.Ohta Y.Morita 李晨菲

摘要为了改善 Ct 心肌延迟增强（MDE）的影像质量，开发了一种基于融合 MDE Ct 数据验证的深度学习（DL）的后处理降噪方法。目的以 MRI 晚期钆增强（LGE）为标准，评价

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非骨水泥全髋置换术中机器人辅助植入假体与人工植入假体效果对比分析

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临床骨科杂志 2010年第3期13卷 306-306页

作者： Nakamura N Sugano N nishii t 胡孔足卜海富

作者对于非骨水泥全髋置换术中机器人辅助植入假体与人工植入假体做一前瞻性对比分析,随访至少5年。结果发现,在术后2—3年,关节JOA评分机器人辅助组略高,而5年之后,两者差异无显著性。机器人辅助组5年后随访双下肢长度差异更小,人工组... 详细信息

作者对于非骨水泥全髋置换术中机器人辅助植入假体与人工植入假体做一前瞻性对比分析,随访至少5年。结果发现,在术后2—3年,关节JOA评分机器人辅助组略高,而5年之后,两者差异无显著性。机器人辅助组5年后随访双下肢长度差异更小,人工组术后2年应力遮挡效应显著增高,术后5年差异更加具有显著性。[第一段]

关键词：机器人辅助全髋置换术非骨水泥假体植入人工应力遮挡效应 JOA评分

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Geochemical Color Maps of the Dhaka Water, Bangladesh—New Map Presentations for toxic Metals and Isotopes

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Journal of Geoscience and Environment Protection 2017年第3期5卷 134-151页

作者： Mst Shamsun Nahar Md. Nurunnabi Mondal Mohammad Ferdous Hasan Jannatun Shahin Md. Ariful Haque Atsushi nishii Department of Environmental Analysis Earth Consultant Co. Ltd. Toyama Japan Department of Fisheries Management Faculty of Fisheries Bangabandhu Sheikh Mujibur Rahman Agricultural University Gazipur Bangladesh Department of Computer Science and Engineering Tokyo University of Technology Tokyo Japan Department of Fisheries Ministry of Fisheries and Livestock Dhaka Bangladesh Department of Oceanography University of Dhaka Dhaka Bangladesh

this research investigated the water qualities and distribution of heavy metals concentration in rain, river, ground and supply waters, providing a baseline in Dhaka Urban, Bangladesh, against which future changes can be assessed. the water sample was collected in the Dhaka central zone, from a site located in the center of the Bengal Delta plain between 23䓨'N - 23䓶'N latitude and 90䓔'E - 90䓟'E longitude which is affected by environmental pollution for high traffic, industrialization and because of its rapid urbanization. the water samples were analyzed for heavy metals by Inductively Coupled Plasma Mass-Spectrometry (ICP-MS), major ions by Ion-Chromatography (IC), water tracer (δ18O and δD) by Mass-Spectrometry (MS), following the standard techniques. Elevated EC and chloride (Cl-) are the markers of wastewater, providing an indication of impacts in the Buriganga River water. the relative concentrations of major ions were presented in the form of Piper and Stiff Diagram. the color maps were constructed to present ions distribution over the areas. the stream reaches directly in Buriganga River from leather industries which may reflect the naturally low dissolved oxygen (DO) 0.3 - 3.5 (mg/L), where aquatic life can’t survive. Uranium contents U238 (0.1 - 2.7 μg/L) are not exceeding the WHO guideline level of 30 μg·L-1. Significant portion of Cs133 (0.05 - 0.32 μg/L), Se (0.03 - 0.12 μg/L), B (50 - 2986 μg/L) and Cr (0.55 - 18.59 μg/L), could be increased in Buriganga River areas by the effect of local sources like leather industry. Zn (10 - 1466 μg/L) in the Dhaka Rain and Pb (4 - 6 μg/L) in Dhaka Water occur mainly in industrial and the high traffic areas, respectively. the isotopic (δ18O/δD) distributions have been evaluated for understanding of contaminant sources in groundwater and wastewater recharge from Buriganga River to adjacent depleted groundwater system. the results indicate that the magnitude of pollution problem depends on the size of the area affected, rapid groundwater d

关键词： Uranium-238 Dhaka Urban δ18O Geochemistry Buriganga River Cesium

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深度学习和智能手机优化心肌晚期钆增强成像Look-Locker影像的抑制点

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国际医学放射学杂志 2023年第5期 619-619页

作者： Y.Ohta E.tateishi Y.Morita t.nishii A.Kotoku H.Horinouchi 张晓涵谷连元

摘要目的利用卷积神经网络（CNN）确定Look-Locker序列影像的最佳反转时间（tI），并探讨智能手机校正tI的可行性。方法回顾性收集2017—2020年期间1 113例Look-

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髋发育异常病人的负重软骨t2值测量

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国际医学放射学杂志 2010年第6期 568-569页

作者： t.nishii t.Shiomi H.tanaka Y.Yamazaki K.Murase N.Sugano 曹伟 Department of Orthopaedic Medical Engineering Osaka University Graduate School of Medicine2-2 YamadaokaSuitaOsaka 565-0871Japan

目的评价髋发育异常病人负重时软骨t2值的改变。材料与方法研究包括在2008年4月-2009年2月间共15例髋发育异常病人和9名无症状的健康志愿者。所有

关键词：软骨发育异常运动器官疾病髋关节病人 t2

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