检索结果-南通市图书馆

Oncologic impact of colonic stents for obstructive left-sided colon cancer

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Clinical Oncology 2023年第1期14卷 1-12页

作者： Hideyuki Suzuki Shingo Tsujinaka Yoshihiro Sato tomoya miura Chikashi Shibata Department of Gastroenterological Surgery Tohoku Medical and Pharmaceutical UniversitySendai 983-8536MiyagiJapan

Colonic stenting has had a significant positive impact on the management of obstructive left-sided colon cancer(OLCC) in terms of both palliative treatment and bridge-to-surgery(BTS). Notably, many studies have convincingly demonstrated the effectiveness of stenting as a BTS, resulting in improvements in shortterm outcomes and quality of life, safety, and efficacy in subsequent curative surgery, and increased cost-effectiveness, whereas the safety of chemotherapy after stenting and the long-term outcomes of stenting as a BTS are controversial. Several studies have suggested an increased risk of perforation in patients receiving bevacizumab chemotherapy after colonic stenting. In addition, several pathological analyses have suggested a negative oncological impact of colonic stenting. In contrast, many recent studies have demonstrated that colonic stenting for OLCC does not negatively impact the safety of chemotherapy or long-term oncological outcomes. The updated version of the European Society of Gastrointestinal Endoscopy guidelines released in 2020 included colonic stenting as a BTS for OLCC as a recommended treatment. It should be noted that the experience of endoscopists is involved in determining technical and clinical success rates and possibly oncological outcomes. This review discusses the positive and negative impacts of colonic stenting on OLCC treatment, particularly in terms of oncology.

关键词： Colonic stents Obstructive left-sided colon cancer Bridge to surgery Chemotherapy Long-term outcomes European Society of Gastrointestinal Endoscopy guidelines

Hybrid Strategy of Partitioned and Monolithic Methods for Solving Strongly Coupled Analysis of Inverse and Direct Piezoelectric and Circuit Coupling

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computer Modeling in Engineering & Sciences 2024年第8期140卷 1371-1386页

作者： Daisuke Ishihara Syunnosuke Nozaki tomoya Niho Naoto Takayama Department of Intelligent and Control Systems Kyushu Institute of TechnologyFukuokaJapan

The inverse and direct piezoelectric and circuit coupling are widely observed in advanced electro-mechanical systems such as piezoelectric energy *** strongly coupled analysis methods based on direct numerical modeling for this phenomenon can be classified into partitioned or monolithic *** formulation has its advantages and disadvantages,and the choice depends on the characteristics of each coupled *** study proposes a new option:a coupled analysis strategy that combines the best features of the existing formulations,namely,the hybrid partitioned-monolithic *** analysis of inverse piezoelectricity and the monolithic analysis of direct piezoelectric and circuit interaction are strongly coupled using a partitioned iterative hierarchical *** a typical benchmark problem of a piezoelectric energy harvester,this research compares the results from the proposed method to those from the conventional strongly coupled partitioned iterative method,discussing the accuracy,stability,and computational *** proposed hybrid concept is effective for coupled multi-physics problems,including various coupling conditions.

关键词： Structure-piezoelectric-circuit interaction energy harvesting partitioned method monolithic method hybrid method

Natural Convection Melting in a Rectangular Heat Storage Tank of Carbon Nanotube Dispersed Latent Heat Storage Material

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Thermal Science 2024年第3期33卷 847-855页

作者： Shin-ichi MORITA tomoya SAITO Kazunori TAKAI Yasutaka HAYAMIZU Naoto HARUKI Division of Mechanical and Electrical Engineering Kitami Institute of Technology165 Koen-choKitami-shiHokkaido090-8507Japan National Institute of Technology Yonago College4448 Hikona-cyoYonago-shiTottori683-8502Japan Okayama Prefectural University 111 KubokiSoja-shiOkayama719-1197Japan

A dispersion system fluid can convect even if the dispersoid is a solid ***,heat exchange performance can be improved while maintaining fluidity using a material with high thermal conductivity as the *** study presents the melting performance evaluation results of a latent heat storage material with a carbon nanotube(CNT)dispersion system with high thermal conductivity,which enhances the thermal conductivity of the latent heat storage material and does not limit free *** the thermal conductivity and enhancing the melting convection of the heat storage material result in increased latent heat storage *** this study,the thermal conductivity of the latent heat storage material was successfully increased by dispersing CNTs in the *** 0.1%(in mass)of multi-wall CNT(MWCNT)was dispersed in a paraffin-based latent heat storage material,the shear stress increased by 1.5 times at a shear rate of 500 s^(-1),while taking into account the potential effects of convective ***,a latent heat storage experiment was conducted in a rectangular heat storage tank using the CNT dispersion composition ratio as a parameter.A rectangular vessel with a heated vertical surface was used for the latent heat storage *** melting speed was determined by comparing the amount of latent heat stored in a CNT-dispersed latent heat storage material and a single-phase latent heat storage material *** experimental results show that the time required for the latent heat storage material to completely melt in the heat storage tank was the shortest for the single-phase latent heat storage material ***,the fastest melting progress was observed for the sample with 0.02%(in mass)MWCNT content in the melting rate range of up to approximately 40%in the *** results indicate that this phenomenon is caused by the difference in the melting rates in the upper part of the *** generated data are useful for det

关键词： latent heat storage phase change carbon nano tube free convection heat transfer

Evaluation of temperature dependent vortex pinning properties in strongly pinned YBa_(2)Cu_(3)O_(7-δ)thin films with Y_(2)BaCuO_(5)nanoinclusions

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Superconductivity 2024年第1期9卷 95-105页

作者： Alok K.Jha Kaname Matsumoto tomoya Horide Shrikant Saini Ataru Ichinose Paolo Mele Yutaka Yoshida Satoshi Awaji Department of Materials Science and Engineering Kyushu Institute of TechnologyTobata-kuKitakyushu 804-8550Japan Department of Mechanical and Control Engineering Kyushu Institute of TechnologyTobata-kuKitakyushu 804-8550Japan Central Research Institute of Electrical Power Industry YokosukaKanagawa 240-0196Japan College of Engineering-Innovative Global Program Shibaura Institute of TechnologyMinuma-kuSaitama 337-8570Japan Department of Energy Engineering and Science Nagoya UniversityChikusa-kuNagoya 464-8603Japan Institute for Materials Research Tohoku UniversityAoba-kuSendai 980-8577Japan

The pinning of quantized magnetic vortices in superconducting YBa_(2)Cu_(3)O_(7-δ)(YBCO or Y123)thin films with Y_(2)BaCuO_(5)(Y211)nanoinclusions have been investigated over wide temperature range(4.2-77 K).The concentration of Y211 nanoinclusions has been systematically varied inside YBCO thin films prepared by laser ablation technique using surface modified target *** pinning force density values(Fp∼0.5 TNm^(−3)at 4.2 K,9 T)have been observed for the YBCO film with moderate concentration of Y211 nanoinclusions(3.6 area%on ablation target).In addition,uniform enhancement in critical current density(J_(c))was observed in the angular dependent J_(c)measurement of YBCO+Y211 nanocomposite films.Y211 nanoinclusions have been found to be very efficient in pinning the quantized vortices thereby enhancing the in‐field J_(c)values over a wide range of *** the concentration of Y211 secondary phase into Y123 film matrix results into agglomeration of Y211 phase and observed as increased Y211 nanoparticle *** larger secondary phase nanoparticles are not as efficient pinning centers at lower temperatures as they are at higher temperatures due to substantial reduction of the coherence length at lower *** of the temperature dependence of J_(c)for YBCO+Y211 nanocomposite films has been conducted and possible vortex pinning mechanism in these nanocomposite films has been discussed.

关键词： YBCO thin film Critical current Vortex pinning Nanoscale APCs

Combining Motor Imagery and Action Observation with Vibratory Stimulation Increases Corticomotor Excitability in Healthy Young Adults

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Behavioral and Brain Science 2022年第5期12卷 177-195页

作者： Nodoka Kimura tomoya Furuta Gen miura Eiichi Naito Center for Information and Neural Networks (CiNet) Advanced ICT Research Institute National Institute of Information and Communications Technology (NICT) Osaka Japan Graduate School of Frontier Biosciences Osaka University Osaka Japan

Vibratory stimulation but also motor imagery and action observation can induce corticomotor modulation, as a bottom-up stimulus and top-down stimuli, respectively. However, it remains unknown whether the combination of motor imagery, action observation, and vibratory stimulation can effectively increase corticomotor excitability. This study aimed to investigate the effect of motor imagery and/or action observation, in the presence or absence of vibratory stimulation, on the corticomotor excitability of healthy young adults. Vibratory stimulation was provided to the palm of the right hand. Action observation consisted in viewing a movie of someone else’s finger flexion and extension movements. The imagery condition required the participants to imagine they were moving their fingers while viewing the movie and attempting to move their fingers in accordance with the movie. Eleven right-handed healthy young adults were asked to perform six conditions randomly: 1) vibratory stimulation, imagery, and action observation, 2) vibratory stimulation and action observation, 3) vibratory stimulation and viewing of a blank screen, 4) imagery and action observation, 5) action observation, and 6) viewing of a blank screen. Single-pulse transcranial magnetic stimulation was conducted to assess corticomotor excitability and the peak-to-peak amplitude of the motor evoked potentials. The results showed that vibratory stimulation increases corticospinal excitability. The findings further revealed that performing motor imagery while viewing finger movement is more effective at inducing an augmentation of corticomotor excitability compared to action observation alone. Thus, the combination of motor imagery, action observation, and vibratory stimulation can effectively augment corticomotor excitability.

关键词： Motor Evoked Potential Transcranial Magnetic Stimulation Vibratory Stimulation Motor Imagery Action Observation

21世纪初东亚乡村发展和规划实践及若干启迪

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

国际城市规划 2024年第4期39卷 118-126页

作者：张立谭添李雯骐锻冶智也李仁熙同济大学建筑与城市规划学院城市规划系上海同济城市规划设计研究院有限公司中国城市规划学会小城镇规划学术委员会英国纽卡斯尔大学明治学院大学法学院釜山大学建筑学院

进入21世纪以来,日本、韩国和我国台湾地区等东亚经济体相继进入乡村发展的新阶段。笔者从城乡联系、农业发展、人居环境、乡村治理四个视角,系统梳理东亚乡村发展和规划的新近实践和研究进展,以期为当下我国内地的乡村发展和规划提供... 详细信息

进入21世纪以来,日本、韩国和我国台湾地区等东亚经济体相继进入乡村发展的新阶段。笔者从城乡联系、农业发展、人居环境、乡村治理四个视角,系统梳理东亚乡村发展和规划的新近实践和研究进展,以期为当下我国内地的乡村发展和规划提供有益借鉴。在城乡联系方面,东亚经济体已普遍进入城镇化发展的后期阶段,注重促进城乡要素的双向流动和乡村社会福利水平提升;在农业发展方面,提倡农业的生态化和智慧化发展,在保持小农基础上不断促进经营主体的集中,持续推进三次产业深度融合,并重视引入和培育新型专业化农民;在人居环境方面,强调设施配置的城乡公平性、闲置空间资源的再利用、应对灾害的韧性和文化景观的保护传承;在乡村治理方面,充分认识到上下共治的社会治理重要性,并不断完善乡村空间治理体系。最后,笔者探讨了东亚经济体的相关经验对我国内地乡村发展和规划研究的若干启迪。

关键词：东亚乡村乡村发展乡村规划乡村人居日本韩国台湾地区

Efficacy of live attenuated vaccines after two doses of intravenous immunoglobulin for Kawasaki disease

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Pediatrics 2022年第10期18卷 706-709页

作者： Yoshihiko Morikawa Hiroshi Sakakibara Masaru miura Clinical Research Support Center Tokyo Metropolitan Children’s Medical Center2-8-29 MusashidaiFuchuTokyo183-8561Japan Department of General Pediatrics Tokyo Metropolitan Children’s Medical CenterTokyoJapan Department of Cardiology Tokyo Metropolitan Children’s Medical CenterTokyoJapan

Kawasaki disease(KD)is a vasculitis of unknown etiology occurring predominantly in children under five years old[1].Coronary artery aneurysm,its most serious complica-tion,occurs in about 25%of untreated patients[2].High-dose intravenous immunoglobulin(IVIG)2 g/kg is used to prevent coronary artery aneurysms[1,3,4],but about 20%of patients are nonresponsive and require a second dose for a total of 4 g/*** appropriate timing of live attenuated vaccine(LAV)administration in such cases is unclear.

关键词： doses attenuated intravenous

Specific acupuncture stimulation of Shenshu(BL23)affects sympathetic nervous activity-associated plasma renin concentration changes

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Traditional Chinese Medicine 2022年第2期42卷 250-255页

作者： Kanae Umemoto tomoya Hayashi Kaori Fukushige Shuichi Hirai Hayato Terayama Kou Sakabe Munekazu Naito Graduate School of Acupuncture and Moxibustion Meiji University of Integrative MedicineNantanKyoto 629-0392Japan Department of Anatomy Division of Basic Medical Sc+ienceTokai University School of MedicineIseharaKanagawa 259-1193Japan Department of Anatomy Aichi Medical University School of MedicineNagakuteAichi 480-1195Japan Graduate School of Acupuncture and Moxibustion Meiji University of Integrative MedicineNantanKyoto629-0392Japan Department of Physiology Meiji University of Integrative MedicineNantanKyoto 629-0392Japan Division of Anatomical Science Department of Functional MorphologyNihon University School of MedicineItabashi-kuTokyo 173-0032Japan Department of Anatomy Division of Basic Medical ScienceTokai University School of MedicineIseharaKanagawa 259-1193Japan

OBJECTIVE:To examine whether specific stimulation of Shenshu(BL23)affects sympathetic nervous activity(SNA)-associated plasma renin concentration(PRC).METHODS:Eight healthy volunteers participated in three pattern conditions in random order:control(Cont),stimulation of Shenshu(BL23),and stimulation of sham point(Sham).All participants were initially in the supine position for>60 min,and then remained in the standing position during the experimental procedure to increase *** electrocardiogram was used to calculate low frequency/high frequency(LF/HF)ratio;blood was collected to analyze ***:The LF/HF ratio was significantly increased in the standing position when compared with the supine position(P<0.01).There was no difference in LF/HF ratio during or after stimulation of Shenshu(BL23)in the standing position when compared with before the stimulation in the supine position;however,the LF/HF ratio was significantly increased in Cont and Sham conditions(P<0.01).There was no difference in PRC after stimulation of Shenshu(BL23)in the standing position when compared with before the stimulation in the supine position;however,there was a significant increase in PRC in the Cont and Sham conditions(Cont P<0.05,Sham P<0.01).CONCLUSION:Our results demonstrated that specific acupuncture stimulation of Shenshu(BL23)in the standing position decreased SNA-associated PRC,which was not observed during acupuncture stimulation of the sham point.

关键词： Acupuncture Point BL23(Shenshu) Sympathetic nervous activity Plasma renin concentration

Tracing sediment transport history using mineralogical fingerprinting in a river basin with dams utilizing sediment sluicing

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

International Journal of Sediment Research 2023年第3期38卷 469-480页

作者： Kenichi Ito Motohide Matsunaga tomoya Itakiyo Hiroyuki Oishi Kei Nukazawa Mitsuteru Irie Yoshihiro Suzuki Center for International Relations University of Miyazaki Department of Civil and Environmental Engineering Faculty of Engineering University of Miyazaki Oita Prefectural Government West Japan Engineering Consultants Inc.

Sediment causes a serious problem in relation to dam function. A cooperative sediment sluicing operation has been under way since 2017 to prevent sediment from accumulating in dams in the Mimi River,Miyazaki, Japan. To achieve a smooth and stable operation, it is very important to determine the sediment source and a sediment transport system to maintain the dam’s function. In the current study, the source and transport of sediment from the Mimi River basin have been analyzed with X-ray diffraction(XRD) to reveal the peaks of mineral species. The sediment samples were collected in the Mimi River basin from the Tsukabaru Dam to the sea in an area including 4 dams and 5 tributaries. In addition, the minerals in samples collected in 2014, before the start of the sediment sluicing operation, and from 2018 to 2020, after the start of the operation, were analyzed. An evaluation of the similarity of the sediment at each sampling point based on the X-ray diffraction peaks of mineral species showed that sediment distributed upstream was transported downstream in the year when the sediment sluicing was *** result indicates that the sediment sluicing operation at dams ensured the continuity of the sediment distribution in the Mimi River basin. In addition, an investigation done in 2020 showed that sediment particles very similar to those of the upstream tributaries were deposited downstream because of extensive flooding caused by a large typhoon. The management of sediment transport has the greatest importance in a river basin where a dam is to be constructed. It is possible to trace the history of the sediment distribution and movement resulting from the operation of sediment sluicing by using sediment mineral analysis.

关键词： Sediment sluicing Sediment source X-ray diffraction (XRD) Mineralogical analysis Cluster analysis