检索结果-南通市图书馆

Correlativity between neural complex and gonadal development in Styela plicata

在线全文

学校读者我要写书评

暂无评论

Chinese Science bulletin 1997年第10期42卷 864-867页

作者： fang Yongqiang, LIN Jiahan and HUANG Weiquan1. Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005, china 2. {2. of Biology, Xiamen U-niversity, Xiamen 361005, china 3. Fourth Military Medical university, Xi’an 710032. china Third Institute of Oceanography State Oceanic Administration Xiamen 361005 China

IT has been demonstrated that two reproductive hormones,gonadotropin-releasing hormone(GnRH)and gonadotropin(GTH),exist in the nervous system and Hatschek’s pit oflancelet,a species of Cephalochordata,and that these ... 详细信息

关键词： Styela plicata neural complex reproductive hormone.

Recombinant human B7-H4 expressed in Escherichia coli inhibits T lym-phocyte proliferation and IL-2.secretion in vitro

在线全文

学校读者我要写书评

暂无评论

Acta Pharmacologica Sinica 2006年第6期27卷 741-746页

作者： yi-xiang MAO~(2.3)Yong-Jing CHEN~2.Yan GE~2.Hong-bing MA~2.Jian-feng YU~2.Hong-ya WU~2.Yu-min HU~2.Qin WANG~2.Qin SHI~2.Xue-guang ZHANG~(2.4)2.Institute of Biotechnology,Soochow university,Suzhou 2.5007,{2. 3 {2. of Oncology,First Affiliated Hospital to Soochow university,Suzhou 2.5007,{2. Institute of Biotechnology Soochow University

Aim:To explore the biofunctions of human B7-H4 generated from ***:The gene of human B7-H4 extracellular region（IgV-like andIgC-like domains）was obtained by PCR from human cDNA FLJ2.418 and theninserted into the prokaryotic expression vector pGEX-5X-3 expressing glutathiones-transferase（GST）fusion *** being identified by restriction enzymedigestion and sequencing,the recombinant vector was transferred into host strainE coli BL2.-RIL（DE3）.A 47 kDa fusion protein（GST/hB7-H4）was induced byisopropyl-beta-D-thiogalactopyranoside（IPTG）and purified by standard meth-ods reported in the prokaryotic *** inhibitory effect of GST/hBT-H4 onproliferation of T cells was observed in vitro by CD3mAb activated T-cell cultur-ing system and [3H]-thymidine incorporation *** concentrations ofinterleukin-2.and iterferon-g in the supernatants of T cells were determined ***:We successfully constructed the method for high-level expres-sion and purification of the hB7-H4 extracellular domain as GST fusion proteinfrom E *** GST/hB7-H4 fusion protein produced in bacteria had obviousbiological activity to inhibit T-lymphocyte proliferation and IL-2.***:The prokaryote expression system could be used to generate hB7-H4 protein with natural spatial conformations and biological functions,whichprovided an efficient and economical way for the preparation of this target protein.

关键词： B7-H4 glutathione s-transferase fusion protein inhibition

New Exact Solutions to (2.1)-Dimensional Variable Coefficients Broer-Kaup Equations

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Communications in Theoretical Physics 2006年第9期46卷 393-396页

作者： ZHU Jia-Min~(1,2.+) MA Zheng-yi~(1,2. ~1 department of Physics, Zhejiang Lishui {2., Lishui 32.000,{2. ~2.Shanghai Institute of Applied Mathematics and Mechanics, Shanghai 2.0072.{2. department of Physics Zhejiang Lishui University Shanghai Institute of Applied Mathematics and Mechanics

In this paper, using the variable coefficient generalized projected Ricatti equation expansion method, we present explicit solutions of the (2.1)-dimensional variable coefficients Broer-Kaup (VCBK) equations. These solutions include Weierstrass function solution, solitary wave solutions, soliton-like solutions and trigonometric function solutions. Among these solutions, some are found for the first time. Because of the three or four arbitrary functions, rich localized excitations can be found.

关键词： variable coefficient generalized projected Ricatti equation method (2.1)-dimensional variable coefficients Broer Kaup equations Weierstrass function solution solitary wave solution trigonometric function solution

AdaPIP: Adaptive picture-in-picture guidance for 360° film watching

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Computational Visual Media 2024年第3期10卷 487-503页

作者： yi-Xiao Li Guan Luo yi-Ke Xu Yu He {2.-Lue Zhang Song-Hai Zhang department of Computer Science and Technology Tsinghua UniversityBeijingChinaand Beijing National Research Center for Information Science and Technology(BNRist)Tsinghua UniversityBeijingChina Key Laboratory of Space Utilization Technology and Engineering Center for Space UtilizationChinese Academy of SciencesBeijingChina Victoria university of Wellington WellingtonNew Zealand

360°videos enable viewers to watch freely from different directions but inevitably prevent them from perceiving all the helpful *** mitigate this problem,picture-in-picture(PIP)guidance was proposed using preview windows to show regions of interest(ROIs)outside the current view *** identify several drawbacks of this representation and propose a new method for 360° film watching called *** enhances traditional PIP by adaptively arranging preview windows with changeable view ranges and *** addition,AdaPIP incorporates the advantage of arrow-based guidance by presenting circular windows with arrows attached to them to help users locate the corresponding ROIs more *** also adapted AdaPIP and Outside-In to HMD-based immersive virtual reality environments to demonstrate the usability of PIP-guided approaches beyond 2. *** user experiments on 2. screens,as well as in VR environments,indicate that AdaPIP is superior to alternative methods in terms of visual experiences while maintaining a comparable degree of immersion.

关键词： 360°videos picture-in-picture(PIP) virtual reality(VR) visual guidance

CLASSICAL SOLUTION OF QUASI-STATIONARY STEFAN PROBLEM

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

Chinese Annals of Mathematics,Series B 1996年第2期17卷 175-186页

作者： yi FAHUAI department of Mathematics, Suzhou {2., Suzhou 2.5006,{2.. SUZHOU UNIV DEPT MATHSUZHOU 215006PEOPLES R CHINA

This paper considers the quasi-stationary Stefan problem:△u(x,t)=0 in space-time domain,u=0 and Vv +(?)u/(?)u=0 on the free boundary.Under the natural conditions the existence of classical solution locally in time is proved bymaking use of the property of Frechet derivative operator and fixed point theorem. For thesake of simplicity only the one-phase problem is dealt with. In fact two-phase problem can bedealt with in a similar way with more complicated calculation.

关键词： Classical solution Quasi-stationary Stefan problem Frechet derivative

Preparation of insoluble β-CD polymer and its application to enantiomers and isomers separation

在线全文

学校读者我要写书评

暂无评论

Journal of Central South university of Technology 2001年第1期8卷 57-59页

作者： yi Jian ming 1,TANG Kuo wen 2.(1.College of Chemistry and Chemical Engineering, Central South university, Changsha 410083,{2. 2.{2. of Chemical Engineering, Yueyang Normal university, Yueyang 414000,{2.) 1. College of Chemistry and Chemical Engineering Central South University 410083 Changsha China 2. department of Chemical Engineering Yueyang Normal University 414000 Yueyang China

An insoluble β-cyclodextrin polymer cross-linked with epichlorohydrin was prepared, and its structure was identified with infrared spectrum. Colloid stationary phase was prepared by dissolving the polymer in the mixed solvent of diisopropyl ether, methylene dichloride and benzene and treated for 0.5 h by ultrasonication, and then was coated on a fused silica capillary column. The optimun reaction conditions are as follows: the mole ratio of epichlohydrin to β-cyclodextrin is 12.1:1, reacting at 65 °C for 2. h. The Chromatographic performance such as column efficiency, thermal stabilities and polarity were studied, two kinds of disubstituted benzene isomers and eight pairs of enantiomers were separated on the capillary column. The results show that the β-cyclodextrin polymer is suitable for use as a capillary gas chromatographic stationary phase, and possess excellent chromatographic properties in separating enantiomers and position isomers.

关键词： insoluble β cyclodextrin polymer capillary gas chromatography enantiomer position isomer separation

Biocompatibility of Compounds of Extracellular Matrix and Thermally Reversible Hydrogel

在线全文

学校读者我要写书评

暂无评论

Journal of Wuhan university of Technology(Materials Science) 2007年第3期22卷 439-442页

作者：姚颐杨嗣星 department of Urology Renmin Hospital of Wuhan University

A new scaffold material composed of extracellular matrix （ECM） and thermal sensitive hydrogel （HG）, and evaluated its biocompatibility were investigated. We cultured bladder smooth muscle cells with this compound material, and then observed with phase contrast microscopy and scanning electron microscope （SEM） to assess the cell growth and morphology. The cell adhesion and proliferation were detected with MTT assay and cell count. Results show the ECM/HG compounds appeared as a net-like and red-stained construction with enough meshes and without any cellular fragments. 6 h after implantation, cells were observed adhere on the compounds and extend spurious along the fibers 12.h later. Under SEM even some ECM was observed to be secreted. MTT assay shows there was obvious statistic difference among 3 groups （P〈0.05）. ECM/HG compound materials show a good biocompatibility, which confirms that it would be an ideal tissue engineering scaffolds.

关键词： extracellular matrix hydrogel compounds materials biocompatibility

Treatment of multisystem inflammatory syndrome in children

在线全文

学校读者我要写书评

暂无评论

World Journal of Pediatrics 2024年第4期20卷 325-339页

作者： Tong Tong yi-Hua Jin Min Wang fang-Qi Gong department of Cardiology Children's HospitalZhejiang University School of MedicineNational Clinical Research Center for Child HealthNo.3333 Binsheng RoadHangzhou 310052China

Background Multisystem inflammatory syndrome in children(MIS-C),a relatively uncommon but severe pediatric complication,is associated with coronavirus disease 2.19(COVID-19).A variety of treatment approaches,including intravenous immunoglobulins(IVIGs),glucocorticoids(GCs)and biologic agents,such as anakinra and infliximab,have been described for the management of COVID-19-related *** therapy is also ***,a well-developed treatment system has not been established,and many issues remain *** recently published articles related to the treatment of MIS-C have been ***,in this review,we identified relevant articles published recently and summarized the treatment of MIS-C more comprehensively and *** sources We reviewed the literature on the treatment of MIS-C through 2. September *** PubMed/Medline,Web of Science,EMBASE,and Cochrane Library databases were searched with the combination of the terms"multisystem inflammatory syndrome","MIS-C","PIMS-TS","therapy","treatment","drug","IVIG","GCs","intravenous immunoglobulin","corticosteroids","biological agent",and"aspirin".Results The severity of MIS-C varies,and different treatment schemes should be used according to the specific *** research and data collection are vital to better understand the pathophysiology and optimal management of *** MIS-Cis a disease involving multiple systems and has great *** the accumulation of additional experience,we have garnered fresh insights into its treatment ***,there remains a critical need for greater standardization in treatment protocols,alongside the pressing necessity for more robust and meticulously conducted studies to deepen our understanding of these protocols.

关键词： Coronavirus disease 2.19-Corticosteroids Intravenous immunoglobulin Multisystem inflammatory syndrome in children-Treatment

The cloning of 3'-truncated preS/S gene from HBV genomic DNA and its expression in transgenic mice

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

World Journal of Gastroenterology 2000年第5期6卷 734-737页

作者： yi Ping Hu~1 Yu Cheng Yao~1 Jian Xiu Li~1 Xin Min Wang~1 Hong Li~2.Zhong Hua Wang~1 Zhang Heng Lei~3 1 department of Cell Biology,Second Military Medical {2.,Shanghai 2.0433,{2. 2.department of Biology,department of Basic Medicine,West-{2. {2. of Medical sciences,Chengdu 610041,{2. 3 department of Biology,North Sichuan Medical College,Nanchong 637007,{2. 第二军医大学上海华西医科大学四川成都川北医学院四川

INTRODUCTIONHepatitis B virus (HBV) is regarded as one of themain etiologic factors involved in the developmentof human hepatocellular carcinoma (HCC).The open reading frame (orf)of X gene of HBVencoded a transactivating factor is the evidence thatstrongly supported the notion that the X gene ofHBV DNA integrated in HCC genomic DNA couldcontribute to the carcinogenesis of liver cells byactivation of some related cellular genes

关键词： hepatitis B virus gene expression mice transgene polymerase chain reaction DNA recombinant hepatoma