检索结果-南通市图书馆

Experimental evaluation of an on-demand multipath routing protocol for video transmission in mobile ad hoc networks

Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2006年第Z1期7卷 145-150页

作者： TANIYAMA Kenta MORII Takeshi KOIZUMI Shinya noguchi kazuhiro KOTANI Yukihiro KATTO Jiro Graduate School of Science and Engineering Waseda University Tokyo 169-8555Japan

We propose an on-demand multipath routing algorithm in a mobile ad hoc network for video transmission and evaluate its real world performance in video streaming application. There have been a number of multipath routing protocols extended from AODV which is a well-known single path routing protocol. Multipath routing protocols indicate good performance in the reduction of route discovery latency and unnecessary routing packets in simulations. We show that the route establishment using source route lists provided by us (Hu and Johnson, 2002) can reduce the route discovery latency, select stable routes automatically, and work well for live video streaming without limitation of the hop count based approaches. We evaluate this proposed method compared with the original AODV by using eight laptop PCs and demonstrate live streaming experiments.

关键词： Mobile ad hoc networks, AODV, Multipath routing, Source routes

来源：

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

Risk factors for intraoperative perforation during endoscopic submucosal dissection of superficial esophageal squamous cell carcinoma

引用

World Journal of Gastroenterology 2017年第3期23卷 478-485页

作者： Masaaki noguchi Tomonori Yano Tomoji Kato Tomohiro Kadota Maomi Imajoh Hiroyuki Morimoto Shozo Osera Atsushi Yagishita Tomoyuki Odagaki Yusuke Yoda Yasuhiro Oono Hiroaki Ikematsu kazuhiro Kaneko Department of Gastroenterology Endoscopy division National Cancer Center Hospital East Division of Gastroenterology and Hepatology Department of Internal Medicine The Jikei University School of Medicine

AIM To identify the risk factors and clarify the subsequent clinical *** This study retrospectively analyzed consecutive patients with esophageal squamous cell carcinoma( ESCC) treated using endoscopic submucosal dissection(ESD) between April 2008 and October 2012. We divided the ESCC lesions into perforation cases and non-perforation cases, and compared characteristics and endoscopic findings between the two groups. "Intraoperative perforation" was defined as the detection of a perforation site during ESD and the presence of mediastinal *** In total, 147 patients with 156 ESCC lesions were treated by ESD. Intraoperative perforation was recorded for nine lesions(5.8%) from nine patients. Multivariate analysis identified mucosal deficiency larger than 75% of the circumference of the esophagus as an independent risk factor for intraoperative perforation(OR = 7.37, 95%CI: 1.45-37.4, P = 0.016). The predominant site of perforation was the left wall [6/9(67%)]. Six of nine perforation sites were successfully closed by clips during the procedures. Two of nine cases required drainage for pleural effusions; however, all nine cases recovered with conservative treatment and without surgical intervention. At the median follow up of 42 mo after ESD, no cases of local recurrence or distant organ metastasis had been *** This study suggests that mucosal deficiency larger than 75% of the luminal circumference is a risk factor for intraoperative perforation during ESD for ESCC.

关键词： Endoscopic submucosal dissection Risk factor Esophageal carcinoma Perforation

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Conservation and utilization of pig resources by xenografting to mice

Conservation and utilization of pig resources by xenograftin...

引用

中国畜牧兽医学会动物繁殖学分会第十五届学术研讨会

作者： kazuhiro Kikuchi Michiko Nakai Junko noguchi Junya Ito Naomi Kashiwazaki Hiroyuki Kaneko Division of Animal Sciences National Institute of Agrobiological SciencesTsukubaIbaraki Laboratory of Animal Reproduction School of Veterinary MedicineAzabu UniversitySagamiharaKanagawa

In vitro fertilization of in vitro matured oocytes in pigs has become the most popular method of studying gametogenesis and embryogenesis in this *** addition,because of recent advances in in vitro culture of those embryos,in vitro embryo production now enables us to generate viable embryos as successfully as for in vivo-derived embryos and with less cost and in less *** technologies contribute not only to developments in reproductive physiology and agriculture but also to conservation of porcine genetic resources. Until now,conservation of pig genetic recourses has been limited by cryopreservation of sperm and,in some cases, in vivo-derived *** aspects may decrease the general activates in ex situ conservation(gene banking) in this *** recent years,however,unique technologies such as xenografting of gonadal(testicular and ovarian) tissue into immunodeficient experimental animals,which are combined with in vitro embryo production technologies,have been developed to help conservation and utilization of gamete *** have already shown fertilizing ability and developmental ability of porcine embryos from gametes grown in ***,we discuss the possibility of conservation and utilization of pig resources by xenografting to mice.

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Conversion hepatectomy for hepatocellular carcinoma with main portal vein tumour thrombus after lenvatinib treatment: A case report

引用

World Journal of Hepatology 2021年第3期13卷 384-392页

作者： kazuhiro Takahashi Jaejeong Kim Amane Takahashi Shinji Hashimoto Manami Doi Kinji Furuya Ryosuke Hashimoto Yohei Owada Koichi Ogawa Yusuke Ohara Yoshimasa Akashi Katsuji Hisakura Tsuyoshi Enomoto Osamu Shimomura Masayuki noguchi Tatsuya Oda Department of Gastrointestinal and Hepatobiliary Pancreatic Surgery University of TsukubaTsukuba 3058575IbarakiJapan Department of Gastroenterological Surgery Saitama Cancer CenterSaitama 3620806SaitamaJapan Department of Diagnostic Pathology University of TsukubaTsukuba 3058575IbarakiJapan

BACKGROUND Hepatocellular carcinoma(HCC)accompanied by portal vein tumour thrombus(PVTT)presents an aggressive disease course,worsening liver function reserve,and a high recurrence *** practice guidelines recommend systemic therapy as the first-line option for HCC with portal ***,to achieve longer survival in these patients,the treatment strategy should be concluded with removal of the tumour by locoregional *** experienced a case of initially unresectable HCC with main PVTT converted to radical hepatectomy after lenvatinib *** SUMMARY A 59-year-old male with chronic hepatitis C infection visited our clinic as a regular post-surgery ***-enhanced abdominal computed tomography revealed a liver mass diffusely located at the lateral segment with a massive PVTT extending from the umbilical portion to the main and contralateral third-order portal *** the diagnosis of unresectable HCC with Vp4(main trunk/contralateral branch)PVTT,lenvatinib was started at 12 mg/*** computed tomography taken 3 mo after starting lenvatinib showed regression of the PVTT,which had retreated to the contralateral first-order portal *** tolerated the full dose without major adverse *** cessation of lenvatinib for 7 d,radical left lobectomy and PVTT thrombectomy were *** patient’s postoperative course was ***,the primary lesion showed fibrotic changes,with moderately to poorly differentiated tumour cells surrounded by granulation tissues in some *** majority of the PVTT showed *** was alive without recurrence for 8 *** This is the first case of HCC with Vp4 PVTT in which radical conversion hepatectomy was succeeded after lenvatinib treatment.

关键词： Hepatocellular carcinoma Lenvatinib Portal vein tumour thrombus Conversion hepatectomy Case report

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Usefulness of Fractional Exhaled Nitric Oxide-Guided Treatment in Patients with Asthma-Chronic Obstructive Pulmonary Disease Overlap

引用

Open Journal of Respiratory Diseases 2018年第1期8卷 1-12页

作者： Taisuke Akamatsu Toshihiro Shirai Yuko Tanaka Hirofumi Watanabe Yoshinari Endo Yukiko Shimoda Takahito Suzuki Rie noguchi Mika Saigusa Akito Yamamoto Yuichiro Shishido Takefumi Akita Satoru Morita kazuhiro Asada Department of Respiratory Medicine Shizuoka General Hospital Shizuoka Japan

Background: Some patients present clinical features of both asthma and chronic obstructive pulmonary disease (COPD), which has led to the recent proposal of asthma-COPD overlap (ACO) as a diagnosis. Fractional exhaled nitric oxide (FeNO) is a candidate biomarker to diagnose ACO. We assessed the effect of an add-on treatment with budesonide/formoterol (BUD/FM) combination in patients with ACO, which was diagnosed by FeNO. Methods: This was a prospective, single-arm, open-label, before and after comparison study. Subjects included 83 patients with COPD who attended outpatient clinics for routine checkups at Shizuoka General Hospital between June and November 2016. All patients fulfilled the GOLD definition of COPD and were receiving long-acting muscarinic antagonist (LAMA) or LAMA/long-acting β2 agonist (LABA) combinations. After an 8-week run-in period, BUD/FM was added to the patients with FeNO levels of ≥35 ppb, defined as having ACO. For patients receiving LAMA/LABA, BUD/FM was added after the discontinuation of LABA. The modified British Medical Research Council (mMRC) score, COPD assessment test (CAT) score, spirometric indices, forced oscillation parameters, and FeNO were assessed before and after 8 weeks of BUD/ FM add-on treatment. Results: Twenty-four patients (28.9%) had FeNO levels ≥ 35 ppb, and 17 patients completed the study (mean age: 73 years and GOLD I/II/III/IV, 5/10/1/1). The mean CAT scores significantly improved (9.2 to 5.4, p = 0.015) and 10 patients (58.8%) showed ≥2 points improvement, a minimal clinically important difference. The mean FeNO levels significantly decreased from 63.0 to 34.3 ppb (p Conclusions: FeNO-guided treatment with BUD/FM improves symptoms in patients with ACO.

关键词： Asthma-COPD Overlap Budesonide/Formoterol Combination COPD Assessment Test Fractional Exhaled Nitric Oxide

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

化学合成的人免疫干扰素基因在***中表达

引用

遗传工程 1984年第2期 64-73页

作者： Shoji Tanaka Takehiro Oshima kazuhiro ohsuye Teiichi on Akira Mizono Atsuto Ueno Hiroshi Nakazuto Masafumi Tsujimoto Naoki Migashi Teruhisa noguchi 杨志兴杨学成

山人的免疫干扰素(hIFN—r)基因,启始和终止信号加上适当的限制酶位点组成的一个454bp的双链DNA片段被总地合成了。该合成包括用快速的固相法制备的62个寡脱氧核苷酸,以及用酶连接这些寡核苷酸。这个合成的基因在lacuv5启动子控制之下,... 详细信息

山人的免疫干扰素(hIFN—r)基因,启始和终止信号加上适当的限制酶位点组成的一个454bp的双链DNA片段被总地合成了。该合成包括用快速的固相法制备的62个寡脱氧核苷酸,以及用酶连接这些寡核苷酸。这个合成的基因在lacuv5启动子控制之下,在***中表达。表达产物具有抗病毒活性,该活性系对酸不稳定并完全地被抗hIFN—r抗血清中和,但不能被抗hIFN—α或者hIFN—β抗血清中和。用凝胶过泸法和SDT—聚丙烯酰胺凝胶电泳分别地测出***产生的hIFN—γ的分子量约为32,000和17,000。

关键词：合成基因免疫干扰素化学合成质粒基因载体凝胶电泳分离转化子连接酶合成酶 DNA 密码子四环素核昔酸限制性

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

PERCIST用于头颈部鳞状细胞癌患者放化疗疗效评价及预后预测

引用

中华核医学与分子影像杂志 2018年第12期38卷 839-839页

作者：唐军(译) Takayuki Katsuura kazuhiro Kitajirma Masayuki Fujiwara Tomonori Terada Nobuhiro Uwa Kazuma noguchi Hiroshi Doi Yukihisa Tamaki Rika Yoshida Tatsuya Tsuchitani Masahiro Fujita Koichiro Yamakado 上海交通大学医学院附属苏州九龙医院核医学科 215021 Division of Nuclear Medicine and PET Center Department of Radiology Hyogo College of MedicineNishinomiya Japan

目的探讨PET实体瘤疗效评价标准(PERCIST)评价头颈部鳞状细胞癌(HNSCC)患者放化疗疗效及预测复发和死亡的价值。方法42例患者(平均年龄63岁,范围20~79岁)在放化疗前及放化疗后约3个月(平均95d,范围70~119d)行脱氧葡萄糖(FDG)-PET/CT显像... 详细信息

目的探讨PET实体瘤疗效评价标准(PERCIST)评价头颈部鳞状细胞癌(HNSCC)患者放化疗疗效及预测复发和死亡的价值。方法42例患者(平均年龄63岁,范围20~79岁)在放化疗前及放化疗后约3个月(平均95d,范围70~119d)行脱氧葡萄糖(FDG)-PET/CT显像,其中包括10例鼻咽癌、13例口咽癌、11例下咽癌及8例喉癌。与PERCIST相关的无进展生存时间(PFS)和总生存时间(OS)采用对数秩检验和Cox回归分析进行统计学处理。结果PERCIST确定的完全代谢反应(CMR,即病灶FDG摄取降低至肝脏的平均活度水平以下或病灶FDG摄取与周围组织无明显差别)、部分代谢反应[PMR,即经去脂体质量校正的高峰标准摄取值(SULpeak)下降30%及以上]、稳定代谢反应(SMD,即FDG摄取无明显变化)和病灶代谢增加(PMD,即SULpeak增加30%及以上)的患者数分别为30例(71.4%)、9例(21.4%)、3例(7.1%)和0例。

关键词：头颈部鳞状细胞癌 FDG-PET/CT PERCIST 治疗效果预后

来源：

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

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：