检索结果-南通市图书馆

Metachronous isolated penile metastasis from sigmoid colon adenocarcinoma:A case report

World Journal of Clinical Cases 2022年第31期10卷 11658-11664页

作者： Guo-lin Yin Jiang-Bo Zhu Cheng-lin fu Ru-Liang Ding Jun-Miao Zhang Qian lin Department of Urology Taizhou First People's HospitalTaizhou 318020Zhejiang ProvinceChina Department of Pathology Taizhou First People's HospitalTaizhou 318020Zhejiang ProvinceChina Department of Anorectology Taizhou First People's HospitalTaizhou 318020Zhejiang ProvinceChina

BACKGROUND Sigmoid colon adenocarcinoma has a high incidence among gastrointestinal tumors,and it very rarely metastasizes to the *** literature reports that the prognosis after penile metastasis is generally poor,with a median survival of about 9 *** isolated metastasis to the penis originating from sigmoid colon adenocarcinoma has not been reported so ***,we report a case of sigmoid colon adenocarcinoma with isolated penile metastasis occurring 2 years after *** mass was pathologically confirmed as metastatic adenocarcinoma,and oral chemotherapy with capecitabine was given after *** tumor did not recur during the 2-year follow-up *** SUMMARY A 79-year-old man presented to the urology department with"a mass located at the root of the penis since 1 mo".Enhanced computed tomography(CT)examination suggested a 12 mm×10 mm×9 mm nodule at the root of the right penile corpus ***,pulmonary,and abdominal CT;and bone scan did not show any tumorigenic *** carcinoembryonic antigen(CEA)level was slightly elevated(6.01 ng/mL,reference value 0-5 ng/mL).The patient had undergone laparoscopic radical sigmoidectomy for sigmoid colon cancer 2 years *** postoperative pathology showed moderately differentiated adenocarcinoma of the sigmoid colon,and the stage was *** penile mass was removed under general *** postoperative pathology showed adenocarcinoma,and immunohistochemistry showed CDX2(+),CK20(+),and Villin(+).Based on the medical history,he was diagnosed with penile metastasis from sigmoid colon *** CEA level returned to normal(3.34 ng/mL)4 d after *** chemotherapy with capecitabine was given subsequently,and tumor recurrence was not found during the 2-year follow-up *** To our knowledge,this is a rare case of metachronous isolated penile metastasis from sigmoid colon *** penis is a potential site of metastasis of colon adenocarcinoma,an

关键词： Colon adenocarcinoma Penis Metastases Metachronous Adenocarcinoma 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

Determining the Planning Period of a Distribution Substation Based on Acceptable Errors

引用

CSEE Journal of Power and Energy Systems 2017年第3期3卷 296-301页

作者： Gengwu Zhang Chengmin Wang lin fu Haibing Wang Department of Electrical Engineering Shanghai Jiao Tong UniversityShanghai 200240China State Power Economic Research Institute of Xinjiang Urumqi 830001China

The distribution substation planning is faced with numerous uncertainties so that the planning result can only be a“rough outline,”and the problem of determining the planning period *** the basis of the assessment of uncertainties in distribution planning,a specific approach to determine the planning period of a distribution substation based on acceptable errors is proposed,indicating that the load forecast error is the key factor to affect the planning *** order to provide a clearer understanding of this paper’s primary objective,the proposed approach is applied to determining the planning period of a power supply radius optimization(PSRO)model in distribution substation ***,an example is illustrated which validates the suggested approach of this paper.

关键词： Acceptable error distribution substation planning load forecast error planning period power supply radius optimization

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

Progress in research on the effects of traditional Chinese medicine on the tumor microenvironment

引用

Journal of Integrative Medicine 2017年第4期15卷 282-287页

作者： Wan-fu lin Jian-ying Lu Bin-bin Cheng Chang-quan ling Changhai Hospital of Traditional Chinese Medicine Second Military Medical University Department of Traditional Chinese Medicine Jing'an Hospital of Integrated Traditional Chinese and Western Medicine

Tumor microenvironment （TME） has received more and more attention as modern medical research has begun to understand its importance in tumorigenesis. The occurrence, development, metastasis and drug resistance of tumors are closely related to TME. TME is a complicated system, including nontumor cells, their secreted cytokines, extracellular matrix, among other components. The concepts of wholism and multitarget regulation in traditional Chinese medicine （TCM） make it well suited to the regulation of TME. in this paper, the authors reviewed the progress of TME research and the effect of TCM on TME, providing some views of Chinese medicine in antitumor research.

关键词： tumor microenvironment medicine, Chinese traditional Chinese medicine monomer Chinesemedicine compound research progress

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 Boson-fermion Realization of Highest Weight Modules over■

引用

Acta Mathematica Sinica,English Series 2024年第12期40卷 2879-2903页

作者： fu lin CHEN Xin HUANG Shao Bin TAN School of Mathematical Sciences Xiamen University

In this paper, we construct a superfermionic representation as well as a vertex representation for twisted general linear affine Lie superalgebras. We also establish a module isomorphism between them, which generalizes the super boson-fermion correspondence of type B given by Kac–van de Leur. Based on this isomorphism, we determine explicitly the irreducible components of these two representations. Particularly, we obtain in this way two kinds of systematic construction of level 1 irreducible integrable highest weight modules for twisted general linear affine Lie superalgebras.

关键词： Twisted affine Lie superalgebra integrable highest weight module super boson-fermion correspondence

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 New Isopropenyl Benzofuran-type Tetramer from Ligularia stenocephala

引用

Chinese Chemical Letters 2003年第12期14卷 1253-1254页

作者： fu lin YAN Ai Xia WANG Zhong Jian JIA Lei HE College of Chemistry and Chemical Engineering National Laboratory of Applied Organic ChemistryLanzhou UniversityLanzhou 730000

A new isopropenyl benzofuran-type tetramer was isolated from the roots of ligularia stenocephala and its structure was established by spectroscopic methods.

关键词： Compositae Ligularia stenocephala isopropenyl benzofuran-type tetramer.

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

ROl-constrained visualization of flood scenes to improve perception efficiency

引用

International Journal of Digital Earth 2023年第1期16卷 3065-3084页

作者： Jigang You Jun Zhu Weilian Li Yukun Guo lin fu Pei Dang Faculty of Geosciences and Environmental Engineering Southwest Jiaotong UniversityChengduPeople’s Republic of China School of Civil Engineering and Geomatics Southwest Petroleum UniversityChengduPeople’s Republic of China

Efficient and intuitive representation of floods can improve people's perception,which is useful for flood emergency management_and decision ***,the current methods of visualizing flood disaster scenes have the shortcomings of data redundancy and *** interference of the complex background can be avoided through region of interest(ROl)extraction,because the attention will be quickly attracted by a few salient visual ***,the characteristics of the flood disaster scene object are analysed,and the method for scene division and data organization is ***,the region of interest is extracted according to the time series data of the flood evolution process simulated using cellular automata,and the dynamic identification model of the objects of interest is ***,a dynamic scheduling queue model with service interruption is designed to optimize the rendering efficiency of flood scenes and improve the perception ***,a prototype visualization system was developed and the experimental results show that approximately 30%of the redundant data are reduced,and the scene rendering efficiency is increased by approximately 15%.The non-ROl visualization is weakened by using the rules of human visual cognition,which improves the perception efficiency of flood scenes.

关键词： Floods region of interest perception effciency 3D scenes adaptive optimization

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

Crossability Barriers in the Interspecific Hybridization between Oryza sativa and ***

引用

Journal of Integrative Plant Biology 2009年第1期51卷 21-28页

作者： Xue-lin fu Yong-Gen Lu Xiang-Dong Liu Jin-Quan Li Guangdong Provincial Key Laboratory of Plant Molecular Breeding South China Agricultural University Guangzhou 510642 China

Oryza meyeriana Baill （GG genome） is a precious germplasm in the tertiary gene pool of cultivated rice （AA genome）, and possesses important traits such as resistance and tolerance to biotic and abiotic stress. However, interspeciflc crossability barrier, a critical bottleneck restricting genes transfer from O. meyeriana to cultivars has led to no hybrids through conventional reproduction. Therefore, the reasons underlying incrossability were investigated in the present report. The results showed that：（i） at 3-7 d after pollination （DAP）, many hybrid embryos degenerated at the earlier globular-shaped stage, and could not develop into the later pear-shaped stage. Meanwhile, free endosperm nuclei started to degenerate at 1 DAP, and cellular endosperm could not form at 3 DAP, leading to nutrition starvation for young embryo development; （ii） at 11-13 DAP, almost all hybrid ovaries aborted. Even though 72.22% of hybrid young embryos were produced in the interspecific hybridization between O. sativa and O. meyeriana, young embryos were not able to further develop into hybrid plantlets via culturing in vitro. The main reason for the incrossability was hybrid embryo inviability, presenting as embryo development stagnation and degeneration since 3 DAP. Some possible approaches to overcome the crossability barriers in the interspecific hybridization between O. sativa and O. meyeriana are discussed.

关键词： crossability embryo development interspecific hybridization Oryza sativa O. meyeriana.

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

Reagentless biosensor based on layer-by-layer assembly of functional multiwall carbon nanotubes and enzyme-mediator biocomposite

引用

Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2011年第6期12卷 468-476页

作者： Xing-hua ZHOU Feng-na XI Yi-ming ZHANG Xian-fu lin Department of Chemistry Zhejiang University Hangzhou 310027 China

A simple and controllable layer-by-layer （LBL） assembly method was proposed for the construction of reagentless biosensors based on electrostatic interaction between functional multiwall carbon nanotubes （MWNTs） and enzyme-mediator biocomposites. The carboxylated MWNTs were wrapped with polycations poly（allylamine hydrochloride）（PAH） and the resulting PAH-MWNTs were well dispersed and positively charged. As a water-soluble dye methylene blue （MB） could mix well with horseradish peroxidase （HRP） to form a biocompatible and negativelycharged HRP-MB biocomposite. A （PAH-MWNTs/HRP-MB）, bionanomultilayer was then prepared by electrostatic LBL assembly of PAH-MWNTs and HRP-MB on a polyelectrolyte precursor film-modified Au electrode. Due to the excellent biocompatibility of HRP-MB biocomposite and the uniform LBL assembly, the immobilized HRP could retain its natural bioactivity and MB could efficiently shuttle electrons between HRP and the electrode. The incorporation of MWNTs in the bionanomultilayer enhanced the surface coverage concentration of the electroactive enzyme and increased the catalytic current response of the electrode. The proposed biosensor displayed a fast response （2 s） to hydrogen peroxide with a low detection limit of 2.0× 10^-7 mol/L （S/N=3）. This work provided a versatile platform in the further development of reagentless biosensors.

关键词： Reagentless biosensor Layer-by-layer assembl Horseradish peroxidase-methylene blue (HRP-MB) biocomposite functional multiwall carbon nanotubes Hydrogen peroxide

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

CHEMOENZYMATIC SYNTHESIS OF BIODEGRADABLE POLY(1’-O-VINYLADIPOYL-SUCROSE)

引用

Chinese Journal of Polymer Science 2002年第6期20卷 579-584页

作者： De-shui Lu Qi Wu Xian-fu lin Department of Chemistry Zhejiang University Hangzhou 310027, China Zhejiang Univ Dept Chem Hangzhou 310027 Peoples R China

A novel polymer containing the sucrose group was synthesized by radical polymerization from an enzymatically prepared monomer, 1'-O-vinyladipoyl-sucrose (VAS). Transesterification reaction of sucrose with divinyl adipate in anhydrous pyridine catalyzed by an alkaline protease from Bacillus subtilis at 60degreesC for 7 days gave VAS (yield 55%) without any blocking/deblocking steps. The vinyl sucrose ester could be polymerized with potassium persulfate and H2O2 as initiator to give poly(1'-O-vinyladipoyl-sucrose) with M-n = 33,000 and M-w = 53,200, M-w/M-n = 1.61. The polymer was biodegradable. After 6 days in aqueous buffer (pH 7), this alkaline protease could degrade poly(1'-O-vinyladipoyl-sucrose) to M. of ca. 1080, M-w/M-n = 3.30 (37degreesC), and M-n of ca. 5200, M-w/M-n = 2.44 (4degreesC). The polymer containing the sucrose branch would be a functional material in various application fields.

关键词： divinyladipate sucrose alkaline protease polymerization biodegradation

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

Three-dimensional virtual representation for the whole process of dam-break floods from a geospatial storytelling perspective

引用

International Journal of Digital Earth 2022年第1期15卷 1637-1656页

作者： Weilian Li Jun Zhu Jan-Henrik Haunert lin fu Qing Zhu Youness Dehbi Faculty of Geosciences and Environmental Engineering Southwest Jiaotong UniversityChengduPeople's Republic of China Institute of Geodesy and Geoinformation University of BonnBonnGermany

The objective of disaster scenes is to share location-based risk information to a large audience in an effective and intuitive ***,current studies on three-dimensional(3D)representation for dam-break floods have the following limitations:(1)they are lacking a reasonable logic to organize the whole process of dam-break floods,(2)they present information in a way that cannot be easily understood by *** storytelling helps to create exciting experiences and to explain complex relationships of geospatial *** article proposes a three-dimensional virtual representation method for the whole process of dam-break floods from a geospatial storytelling *** creation of a storyline and a storytelling-oriented representation of dam-break floods are discussed in ***,a prototype system based on WebGL is developed to conduct an experiment *** results of the experiment show that the proposed method can effectively support 3D representation of the spatiotemporal process of dam-break ***,the statistical results indicate that the storytelling is useful for assisting participants in understanding the occurrence and development of dam-break floods,and is applicable to the popularization of disaster science for the general public.

关键词： Geospatial storytelling dam-break flood spatiotemporal process virtual representation 3D scene

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：