检索结果-南通市图书馆

Effects of Honghua preserved amniotic membrane on scar healing in experimental glaucoma surgery

在线全文

学校读者我要写书评

暂无评论

international Journal of Ophthalmology(English edition) 2014年第2期7卷 226-231页

作者： Yi Shao Yao Yu Qiu-Ping liu Jing-Ming li Fei Dong Xin Huang Chong-Gang Pei Ping Tu hen-Hui li Gui-Ping Gao Department of Ophthalmology the First Affiliated Hospital of Nanchang University Department of Endocrinology the Third Hospital of Nanchang the Affiliated Nanchang Hospital of Southern Medical University Jiangxi Research institute of Ophthalmology and Visual Sciences Department of Ophthalmology University of Cincinnati

AiM:To investigate the efficacy and safety of Honghua preserved amniotic membrane(AM)for preventing scar formation of the filtering bleb in a rabbit model of glaucoma trabeculectomy ***:Totally 36 rabbits(36 eyes)were randomly divided into 3 groups:the experimental group(ocular trabeculectomy in combination with Honghua preserved AM transplantation),the control group(ocular trabeculectomy surgery in combination with AM implantation),and the blank group(single trabeculectomy).Clinical observations[including intraocular pressure(iOP),filtering blebs and complications],MassonTrichrome staining,real-time quantitative reverse transcription-polymerase chain reaction(real-time PCR),Western blot were performed on different time points(D1,D7,D14,D21 and D56)after the ***:After operated for 14d,there were statistically significant differences in the filtering blebs compared to the situation before operation(P<0.05),whereas no statistically difference on that among three groups(P>0.05).After 21d,the iOP of experimental group was lowest(P<0.05).There was significant difference between control group and blank group(P<0.05).On postoperative D14,the mean number of fibroblasts in the experimental group was significantlylower(40.6±10.2)compared to those in the control group(54.4±10.8)and blank group(68.2±11.6)(P<0.05,respectively).The mean numbers of the macrophage in the experimental and control groups were respcitively significantly lower versus the blank group(P<0.05,P<0.05,respectively).Compared to that in blank group,the level of transforming growth factor-β(TGF-β1)expression in sclera and conjunctival areas was reduced in the experimental and control groups on protein and mRNA level(P<0.05),but not significant difference between these two groups(P>0.05).CONClUSiON:The trabeculectory surgery with Honghua preserved AM can control iOP,sustain the functional filtration bleb,inhibit the proliferation of fibroblasts and open the fil

关键词： amniotic membrane, trabeculectomy, Honghua injection, implant, transforming growth factor-β , scar formation

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

N(2,2,0)代数的内正则半群

山东大学学报（理学版） 2016年第12期51卷 24-28页

作者：陈露陕西理工大学数学与计算机科学学院陕西汉中723001

讨论了N(2,2,0)代数的半群内正则性,给出了两个特殊集合P(a),H(a)以及左零元的特征,并以实例解释了相关结论。刻画了N(2,2,0)代数的半群的左零元与正则元、内正则元的关系。

关键词： N(2,2,0)代数内正则元内正则半群左零元

Al含量对Mg-xAl-3Ca合金微观组织和力学性能的影响

在线全文

学校读者我要写书评

暂无评论

铸造设备与工艺 2024年第2期 33-38页

作者：陈鹏赵爱春陈星宇陈尧张玉洁太原科技大学材料科学与工程学院山西太原030024

通过向镁熔体添加不同含量的铝(10wt.%~80wt.%)和3wt.%的钙粒,成功制备了一系列Mg-xAl-3Ca(x=1wt.%、20wt.%、30wt.%、40wt.%)合金和Al-xMg-3Ca(x=17wt.%、27wt.%、37wt.%、47wt.%)合金。采用光学显微镜、扫描电镜、X射线衍射仪和万能试验机等设备来研究镁铝钙合金向铝镁钙合金演变过程中的微观组织变化及对压缩性能的影响机制。结果表明,在一定范围内铝含量能够提高合金的抗压性能。当铝含量占比低于30wt.%时,合金的抗压强度随着铝含量的增加也随之提高。当铝含量占比30wt.%时,合金中的Mg_(17)Al_(12)相互相连接形成网状结构,抑制了α-Μg相的生长和移动,从而提高合金的抗压强度至379.43MPa,而当铝含量超过30wt.%时,由于存在大量的Mg_(17)Al_(12)和大尺寸的Al_(2)Ca相,合金的脆化倾向增加,从而使合金的抗压强度逐渐下降。当铝含量占比为50wt.%和60wt.%时由于只形成了少量的金属间化合物,因此其抗压强度最低。然而,当铝含量为80wt.%时,合金中的α-Al相具有高硬度和强度,可增加合金抗压强度,合金抗压强度为438.06MPa.

关键词：镁铝钙合金 Mg_(17)Al_(12)相 Al_(2)Ca相压缩性能

SElECTiVE REDUCTiON OF 3,17—DiOXO—STEROiDS TO 17β-HYDROXY-3-OXO-STEROiDS

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical letters 1993年第6期4卷 479-482页

作者： Qin Jian ZHAO 2hen Su li Department of Medicinal Chemistry Beijing Medical University Beijing,100083

11β-Hydroxy-androst-4-en-3,17-dione(1a),androst-4,9(11)-dien-3,17- dione-(2a),androst-4-en-3,11,17-trione(3a),11α-methoxy-androst-4-en-3,17-dione (4a)and 11β-metboxy-androst-4-en-3,17-dione(Sa)were selectively reduced to the corresponding 17β-OH derivatives in one step without the protection of 3- oxo(and 11-oxo,in the case of 3a)group with the yields ranging from 65% to 79%.in these reactions,the ditute NaBH_4(or KBH_4)solution in methanol was added dropwise to the 3,17-dioxo-steroids solution in methanol-benzene-pyridine, while the reaction mixtures were well stirred at -5～5℃.Acid(such as gtacial acetic acid)was added to quench the *** resulted testosterone derivatives(1b～5b)were purified by flash chromatography. This method appties to the reduction of other 3,17-dioxo-steroids such as△~1 -3-one,△^(1.4)-3-one,△^(4.6)-3-one,△^(1.4.6)-3-one containing compounds.

关键词： DiOXO SElECTiVE REDUCTiON OF 3,17 STEROiDS TO 17 HYDROXY-3-OXO-STEROiDS OCH

identification of 1q21.1 microduplication in a family:A case report

在线全文

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2023年第4期11卷 874-882页

作者： Ting-Ting Huang Hai-Feng Xu Shang-Yu Wang Wen-Xin lin Yie-hen Tung Kaleem Ullah Khan Hui-HuiZhang Hu Guo Guo Zheng Gang Zhang Department of Neurology Children’s Hospital of Nanjing Medical UniversityNanjing 210000Jiangsu ProvinceChina Nanjing Medical University Nanjing 210000Jiangsu ProvinceChina Nanjing Xiaozhuang University Experimental Primary School Nanjing 210000Jiangsu ProvinceChina

BACKGROUND Copy number variation(CNV)has become widely recognized in recent years due to the extensive use of gene screening in developmental disorders and epilepsy research.1q21.1 microduplication syndrome is a rare CNV disease that can manifest as multiple congenital developmental disorders,autism spectrum disorders,congenital malformations,and congenital heart defects with genetic *** SUMMARY We reported a pediatric patient with 1q21.1 microduplication syndrome,and carried out a literature review to determine the correlation between 1q21.1microduplication and its *** summarized the patient’s medical history and clinical symptoms,and extracted genomic DNA from the patient,her parents,elder brother,and *** patient was an 8-mo-old girl who was hospitalized for recurrent convulsions over a 2-mo *** exon sequencing and whole genome low-depth sequencing(CNV-seq)were then *** exon sequencing detected a 1.58-Mb duplication in the CHR1:145883867-147465312 region,which was located in the 1q21.1 *** analysis showed that the pathogenetic duplication fragment,which was also detected in her elder brother’s DNA originated from the *** Whole exon sequencing combined with quantitative polymerase chain reaction can provide an accurate molecular diagnosis in children with 1q21.1 microduplication syndrome,which is of great significance for genetic counseling and early intervention.

关键词： 1q21.1 microduplication syndrome Epilepsy Copy number variation Familial Whole exon sequencing Congenital developmental disorders Case report

Utilization of Sweet Potato Starch for Producing Biocomposite Semiconductor Materials

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

Journal of Chemistry and Chemical Engineering 2013年第1期7卷 26-33页

作者： hen Hermansyah Zayyanatun Zulfa Slamet Nuryeti M. Nasikin Department of Chemical Engineering Faculty of Engineering University of Indonesia Depok 16424 Indonesia

Starch is one of the most promising natural polymers source However, the properties of starch-based materials are not satisfactory. because it is an adsorbent, universally available and low cost. This weakness can be overcome by adding other materials to form biocomposite. Biocomposite is a composite material of a natural polymer （organic phase） and reinforcement/filler （inorganic phase）. The use of filler material that has the properties of semiconductor will produce composite that have semiconducting properties as well. in this research, biocomposite was cast using ZnO as filler in the matrix of sweet potato starch plasticised by glycerol. From the results of XRD （X-ray diffraction） and SEM （scanning electron microscope） analysis showed that ZnO has been dispersed in the matrix and the results of FT-iR was found that sweet potato starch, glycerol, and ZnO are united to form biocomposite. From the test results of mechanical, physical and electrical properties were found that the addition of ZnO concentration of 1%, 3% and 6% lead to improvement of tensile strength from 24.68 kgf/cm2 to 34.43 kgffcm2, decrease in elongation from 26.96% to 8.5%, decrease in water vapour transmission rate from 8.6270 gr·m^2·h^-1 to 4.581 gr·m^2·h^-1, increase in UV absorbance, and conductivity of 5.864 × 10^-7 S/cm. Addition of glycerol concentration of 15%, 25% and 35% wt causes an increase in elongation from 8.75% to 33.04%, and decrease in tensile strength from 54.57% to 14.64%.

关键词： Biocomposite sweet potato starch ZnO glycerol conductivity

The Analysis for Tongue image Using Region-based Tongue Color Feature

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

The Analysis for Tongue Image Using Region-based Tongue Colo...

第十四届全国中药和天然药物学术研讨会

作者： Kuan-Yi lin Duan-Yu chen Han-Kuei Wu Suh-Yin lee hen-Hong Chang Chang Gung Memorial Hospital

＜正＞Tongue diagnosis plays a major role in traditional Chinese medicine（TCM）to evaluate human health *** this study,a part-based in-deep analysis is conducted on the patient’s tongues changes before and after treatment by using coefficient of determination *** achieve part-based tongue analysis,an automatic tongue segmentation system is

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

THE SECOND RECiPROCAl DERiVATiVE POTENTiOMETRiC STRiPPiNG ANAlYSiS

第十四届全国中药和天然药物学术研讨会

作者： Hui-Chu Chiang hen-Hong Chang Chang Gung Memorial Hospital Chang Gung University

＜正＞Medicine is recognized as culture and possibly changes while the ideas or products of medicine spread from one place to *** diversity of diagnostic criteria is regarded as one of the leading shortcomings in the ...

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

Chinese Chemical letters 1991年第11期2卷 859-860页

作者： Xiang Yuan RUAN Ju Nan li Jian cheng DENG Yi hen li Nan JiANG Yong Hong lONG Department of Chemistry Xiangtan UniversityXiangtan 411105 Department of Physics Xiangtan UniversityXiangtan 411105 Department of Computer Science Xiangtan UniversityXiangtan

A theory of the second reciprocal derivative potentiometric stripping analysis with a mercury thin-film electrode is reported.

关键词： Cd Pb in SRD THE SECOND RECiPROCAl DERiVATiVE POTENTiOMETRiC STRiPPiNG ANAlYSiS