检索结果-南通市图书馆

Relationships of early esophageal cancer with human papillomavirus and alcohol metabolism

World Journal of Gastroenterology 2020年第39期26卷 6047-6056页

作者： Masaki Inoue Yuichi Shimizu Marin Ishikawa satoshi abiko Yoshihiko Shimoda Ikko Tanaka Sayoko Kinowaki Masayoshi Ono Keiko Yamamoto Shoko Ono Naoya Sakamoto Department of Gastroenterology and Hepatology Graduate School of Medicine and Faculty of MedicineHokkaido UniversitySapporoHokkaido 060-0808Japan of Endoscopy Hokkaido University HospitalSapporoHokkaido 060-8648Japan Department of Cancer Pathology Hokkaido University Graduate School of MedicineSapporoHokkaido 060-0808Japan Department of Gastroenterology Hokkaido University HospitalSapporoHokkaido 060-8648Japan Department of Gastroenterology and Hepatology Hakodate Municipal HospitalHakodateHokkaido 041-8680Japan

BACKGROUND It is well known that an alcohol consumption habit together with inactive heterozygous aldehyde dehydrogenase-2(ALDH2)is an important risk factor for the development of esophageal squamous cell carcinoma(ESCC).It remains controversial whether human papillomavirus(HPV)infection contributes to the occurrence/development of *** has been no study in which the relationship between ESCC and HPV in addition to alcohol dehydrogenase-1B(ADH1B)and ALDH2 genotypes was *** To evaluate relationships between HPV infection and development of esophageal cancer,particularly early esophageal cancer,based on ADH1B/ALDH2 *** We conducted an exploratory retrospective study using new specimens,and we enrolled 145 patients who underwent endoscopic resection for superficial ESCC and had been observed for more than two years by both physical examination and endoscopic examination in Hokkaido University *** was collected to analyze genetic polymorphisms of ADH1B/*** performed in situ hybridization for resected specimens to detect HPV by using an HPV type 16/18 *** HPV was detected in 15(10.3%)of the 145 patients with ***-positive rates in inactive ALDH2*1/*2 and ALDH2*1/*1+*2/*2 were 10.8%and 9.8%,respectively(P=1.00).HPV-positive rates in slow-metabolizing ADH1B*1/*1 and ADH1B*1/*2+*2/*2 were 12.0%and 10.0%,respectively(P=0.72).HPV-positive rates in the heavy or moderate alcohol consumption group and the light or rare consumption group were 11.1%and 8.7%,respectively(P=0.68).HPV-positive rates in the heavy smoking group and the light or no smoking group were 11.8%and 8.3%,respectively(P=0.59).The 3-year incidence rates of secondary ESCC or head and neck cancer after initial treatment in the HPV-positive and HPVnegative groups were 14.4%and 21.4%(P=0.22),*** In the present situation,HPV status is considered to be less important than other risk factors,such as alcohol consumption,smoking habit,AD

关键词： Human papillomavirus Esophageal squamous cell carcinoma Early esophageal cancer Alcohol dehydrogenase-1B Aldehyde dehydrogenase-2 Endoscopic resection

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

Advances in quantum dots for classical and non-classical light sources Invited Paper

引用

Chinese Optics Letters 2008年第10期6卷 718-723页

作者： Yasuhiko Arakawa satoshi Iwamoto satoshi Kako Masahiro Nomura Denis Guimard Research Center for Advanced Science and Technology Institute for Nano Quantum Information ElectronicsThe University of Tokyo4-6-1 Meguro-ku153-8505 TokyoJapan

Recent advances in quantum dots （QDs） for classical and non-classical light sources are presented. We have established metal organic chemical vapor deposition （MOCVD） technology for InAs-based QD lasers at 1.3 μm and achieved ultralow threshold in QD lasers with photonic crystal （PhC） nanocavity. In addition, single photon emitters at 1.55 μm, GaN-based single photon sources operating at 200 K, and high-Q PhC nanocavity have been demonstrated.

关键词： QDs Advances in quantum dots for classical and non-classical light sources Invited Paper AIN InAs

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

Application of 3D Scanned Big Data of Large-scale Cultural Heritage Objects Based on Noise-robust Transparent Visualization

引用

系统仿真学报 2023年第8期35卷 1635-1650页

作者： Tanaka satoshi College of Information Science and Engineering Ritsumeikan UniversityShiga 525-8577Japan

Three-dimensional(3D) scanning technology has undergone remarkable developments in recent *** acquired by 3D scanning have the form of 3D point *** 3D scanned point clouds have data sizes that can be considered big *** also contain measurement noise inherent in measurement *** properties of 3D scanned point clouds make many traditional CG/visualization techniques *** paper reviewed our recent achievements in developing varieties of high-quality visualizations suitable for the visual analysis of 3D scanned point *** demonstrated the effectiveness of the method by applying the visualizations to various cultural heritage *** main visualization targets used in this paper are the floats in the Gion Festival in Kyoto(the float parade is on the UNESCO Intangible Cultural Heritage List) and Borobudur Temple in Indonesia(a UNESCO World Heritage Site).

关键词： 3D scanning point cloud transparent visualization noise transparentization cultural heritage object

来源：

维普期刊数据库

同方期刊数据库

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

Posture Maintenance Control of 2-Link Object By Nonprehensile Two-Cooperative-Arm Robot Without Compensating Friction

引用

IEEE/CAA Journal of Automatica Sinica 2019年第6期6卷 1397-1403页

作者： Changan Jiang satoshi Ueno Department of Mechanical Engineering Ritsumeikan University1-1-1 Noji-higashiKusatsuShiga 525-8577Japan

In this paper, a method to posture maintenance control of 2-link object by nonprehensile two-cooperative-arm robot without compensating friction is proposed. In details, a mathematical model of the 2-link object is firstly built. Based on the model, stable regions for holding motion of nonprehensile two-cooperative-arm robot are obtained while the 2-link object is kept stable on the robot arms with static friction. Among the obtained stable regions, the robust pairs of orientation angles of the 2-link object are found. Under the robust orientation angles, a feedback control system is designed to control the arms to maintain the 2-link object's posture while it is being held or lifted up. Finally, experimental results are shown to verify the effectiveness of the proposed method.

关键词： Nursing care nonprehensile robot posture maintenance static friction two-cooperative-arm robot

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

A pH-dependent molecular switch for virion uncoating

引用

Protein & Cell 2014年第9期5卷 653-654页

作者： satoshi Koike Neurovirology Project Tokyo Metropolitan Institute of Medical Science 2-1-6 Kamikitazawa Setagaya-ku Tokyo 156-8506Japan

Enterovirus 71, belonging to human enterovirus speCies A in the genus Enterovirus of the family Picornaviridae, is one of the main causative agents of hand-foot-mouth disease. It can also cause severe neurological diseases such as acute encephalitis, polio-like paralysis, and neurogenic pulmonary edema, and it has become a serious public health concern especially in the Asia-Pacific region.

关键词： Enterovirus Picornaviridae Asia-Pacific

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

Hepatic pseudolesions caused by alterations in intrahepatic hemodynamics

引用

World Journal of Gastroenterology 2021年第46期27卷 7894-7908页

作者： satoshi Kobayashi Department of Quantum Medical Technology Kanazawa University Graduate School of Medical SciencesKanazawa 9200942IshikawaJapan

Hepatic pseudolesion may occur in contrast-enhanced computed tomography and magnetic resonance imaging due to the unique haemodynamic characteristics of the *** concept of hepatic arterial buffer response(HABR)has become mainstream for the understanding of the mechanism of the reciprocal effect between hepatic arterial and portal venous *** HABR is thought to be significantly related to the occurrence of the abnormal imaging findings on arterial phase of contrast enhanced images,such as hepatic arterial-portal vein shunt and transient hepatic attenuation difference,which mimic hypervascular tumor and may cause clinical *** inflow to the liver also cause hepatic pseudolesion,and some of the cases may show histopathologic change such as focal hyperplasia,focal fatty liver,and focal sparing of fatty liver,and called *** understand these phenomena might be valuable for interpreting the liver imaging findings.

关键词： Pseudolesion Focal sparing of fatty liver Computed tomography Hepatic blood flow Hepatic hemodynamics Hyperplastic change

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

Surface roughness and its role in mediating cell adhesion on cobalt-chromium-molybdenum alloys

引用

Biosurface and Biotribology 2023年第4期9卷 161-168页

作者： satoshi Migita Graduate School of Science and Engineering Yamagata UniversityYonezawaJapan

Co-Cr-Mo ally(CCM)is commonly used for orthopaedic and dental implants due to its excellent mechanical properties and corrosion ***,the influence of surface roughness on cell attachment and proliferation remains *** study aimed to elucidate the impact of surface roughness of CCM on the attachment and proliferation of *** samples with different values of surface rouges were prepared by ***3T3-E1 mouse osteoblasts were used for cell culture *** attachment,morphology,and the expression of actin stress fibres,vinculin,and distri-bution of yes-associated protein were *** results suggest that surface rough-ness does not significantly affect cell attachment and proliferation on CCM,unlike on *** implies that other properties of CCM,such as physicochemical properties,may play a more substantial role in modulating cell *** study provides important insights into the design of CCM implants,suggesting that approaches beyond tuning surface roughness may be necessary to improve biocompatibility and osseointegration.

关键词： biointerface biological reaction biological response biomaterials biomedical application biosurface

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

Artificially frozen ground and related engineering technology in Japan

引用

Research in Cold and Arid Regions 2021年第2期13卷 77-86页

作者： satoshi Akagawa Cryosphere Engineering Laboratory TokyoJapan

Since the 1970's, frozen ground has been developing near the Tokyo Bay area around liquefied natural gas(LNG) inground storage tanks. For disaster prevention purposes, the tanks are constructed below the ground surface. Since the temperature of the liquid stored in the tanks is -162℃ the soil surrounding the tanks freezes. Since this frozen ground has existed for almost half a century, we have permafrost near Tokyo. The development of artificial frozen ground may cause frost heaving, resulting in frost heave forces that may cause structural damage of adjacent LNG in-ground storage ***, the demand for frozen ground engineering increased and consequently we now have advanced technology in this area. Fortunately, we use this engineering technology and artificial ground freezing for civil engineering, especially in big and crowded cities like Tokyo. This paper provides a summary of the testing apparatus, test methods, and assessment methods for frost heaving.

关键词： artificial ground freezing frost heave frozen ground engineering

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

引用

Genomics, Proteomics & Bioinformatics 2016年第2期14卷 103-112页

作者： Yusei Kobori satoshi Mizuta Graduate School of Science and Technology Hirosaki University

Graphical representation of DNA sequences is one of the most popular techniques for alignment-free sequence comparison. Here, we propose a new method for the feature extraction of DNA sequences represented by binary images, by estimating the similarity between DNA sequences using the frequency histograms of local bitmap patterns of images. Our method shows linear time complexity for the length of DNA sequences, which is practical even when long sequences, such as whole genome sequences, are compared. We tested five distance measures for the estimation of sequence similarities, and found that the histogram intersection and Manhattan distance are the most appropriate ones for phylogenetic analyses.

关键词： Genome sequence Mitochondria Bitmap image Occurrence frequency Distance measure

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

Redox regulation of fertilisation and the spermatogenic process

引用

Asian Journal of Andrology 2011年第3期13卷 420-423,511,512页

作者： Junichi Fujii satoshi Tsunoda Department of Biochemistry and Molecular Biology Graduate School of Medical Science Yamagata University Yamagata 990-9585 Japan Respiratory and Cardiovascular Diseases Research Center Research institute for Advanced Molecular Epidemiology Yamagata University Yamagata 990-9585 Japan Global COE Program for Medical Sciences Japan Society for the Promotion of Science Tokyo Japan

Oxidative stress is one of the major causes of male infertility; it damages spermatogenic cells, the spermatogenic process and sperm function. Recent advances in redox biology have revealed the signalling role of reactive oxygen species （ROS） that are generated by cells. While highly reactive oxidants, such as the hydroxyl radical, exert largely deleterious effects, hydrogen peroxide can feasibly serve as a signal mediator because it is moderately reactive and membrane permeable and because it can oxidize only limited numbers of functional groups of biological molecules. The amino acid side chain most sensitive to oxidation is cysteine sulphydryl, which is commonly involved in the catalysis of some enzymes. Although the reactivity of cysteine sulphhydryl is not very high in ordinary proteins, some phosphatases possess a highly reactive sulphydryl group at their catalytic centre and are thereby oxidatively inactivated by transiently elevated hydrogen peroxide levels after extracellular stimuli and under certain environmental conditions. Peroxiredoxins, in turn, show moderate hydrogen peroxide-reducing activity, and their role in the modulation of ROS-mediated signal transduction in ordinary cells, mediated by protecting phosphatases from oxidative inactivation, has attracted much attention. Although knowledge of the signalling role of ROS in the male reproductive system is limited at present, its significance is becoming a focal issue. Here, we present a review of the emerging signalling role of hydrogen peroxide in testes.

关键词： hydrogen peroxide oxidative stress peroxiredoxin signal transduction

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

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

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

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：