检索结果-南通市图书馆

c.inese Geographic.l Sc.enc. 2002年第3期12卷 212-217页

作者： ZHU Xi-gang,ZHANG Jing-xiang,c.EN Hu (Department of Urban and resourc.s Sc.enc.s,Nanjing University,Nanjin g 210093,P.r.c.ina,) Department of Urban and resourc.s Sc.enc.s Nanjing University Nanjing P. R. China

In rapid soc.o-ec.nomic.developme nt,the proc.ss of c.nc.ntration and dispersal of various elements tends to be more dramatic.tremendously in fluenc.ng the shaping and transform ation of the spac. in metropolitan *** of spatial c.nc.ntration and dec.nt ralization has thus bec.me a basic.me thod in examining metropolitan spatial *** this researc.,three elements were selec.ed as the essential indic.to rs of the proc.ss:demographic.density distribu-tion,employment density distribut ion and business offic. *** of these elements in Nanji ng c.ty was exam-ined *** Nanjing c.ty c.ould be regarded as a representative of metropolitan areas in c.ina,its s ituation large-ly suggestes the general c.arac.eristic. in similar areas of *** based on the investigation of Nanji ng c.ty,four general implic.tions were highligh ***,metropolitan areas inc.ina are in a violentproc.ss and shift of spatialc.nc.ntra-tion and ***,from now to at least the near future,c.onc.ntration will c.ntinue to be the c.ntral ***,the landsc.pe of metrop olitan areas basic.lly exhibits a dual struc.ure *** gap in en vironmental and ec.logic.l qualities among different distric.s will c.ntinue for a l ong ***,c.ntral Business Distric.(c.D)is playing an important role in helpi ng to c.nvert the traditionally single-c.ntered c.ty struc.ure into a polyc.ntric.one.

关键词： c.nc.ntration dec.ntralization dynamic.mec.anism nanjing metropolis

腹腔镜辅助下经阴道切除大子宫的一项对照研究

在线全文

学校读者我要写书评

暂无评论

世界核心医学期刊文摘（妇产科学分册） 2005年第1期1卷 23-23页

作者： Yen c.-F. Lee c.-L. 薛艳

Objec.ive: To examine the safety and feasibility of laparosc.pic.lly assisted vaginal hysterec.omy (LAVH) for uteriweighing 500 g or more as c.mpared to uteri weighing less than 500 g in the management of benign gynec.logic.l diseases. Me thod: In this prospec.ive c.mparative study, 189 women with different benign gyn ec.logic.l diseases were sc.eduled for laparosc.pic.lly assisted vaginal hystere c.omy. They were divided into two groups, with uterine weight greater than 500 g and uterine weight less than 500g. Outc.me measures for both the groups were st udied c.mparatively in terms of length of operative time, amount of blood loss, requirement of blood transfusion and length of hospital stay. results: Length of operation and amount blood loss were signific.ntly greater in the uteri ≥500 g group than in the rsus 77.4±26.6 min (Prsus 262.5±270.0 ml (Prespec.ively. However, ther e was no differenc. in length of hospital stay and overall inc.denc. of operativ e c.mplic.tions between the two groups. None of the women had any major c.mplic. tions though 17 minor c.mplic.tions were noted. There was no inc.denc. of switc. ing to abdominal laparatomy during the operation exc.pt for one patient who requ ired “minilaparotomy”for removal of large surgic.l spec.men (2400 g). Extreme intra-operative hemorrhage of more than 1000 ml oc.urred in five patients, howe ver, they made full rec.very after blood transfusion. rate of blood transfusion was signific.ntly lower in the uteri roup (4.8%versus 34.9%, P c.nc.usion: This study demonstrates that despite the inc.eased operating tim e and blood loss, LAVH c.n be safely performed for large uterus. However, surgeo ns need to be aware of the high risk of blood transfusion in these patients.

关键词：下经腔镜剖腹术妇科疾病术中失血量完全康复手术时间手术医师处理过程无显著性差异

在线全文

学校读者我要写书评

暂无评论

流行性乙型腦炎補體結合試驗方法的改進

微生物学报 1958年第1期 58-65页

作者：周明先汪瑾黃禎祥中国医学科学院病毒学系

補體結合反應在實驗病毒學中,尤其在嗜神經性病毒方面,由於抗原的製備有了初步的改善,已經成為一個重要的實用工具。在流行性乙型腦炎方面,補體結合實驗診斷的可靠性一般認為具有一定的價值。然而在一般嗜神經病毒的補體結合試驗中,還... 详细信息

補體結合反應在實驗病毒學中,尤其在嗜神經性病毒方面,由於抗原的製備有了初步的改善,已經成為一個重要的實用工具。在流行性乙型腦炎方面,補體結合實驗診斷的可靠性一般認為具有一定的價值。然而在一般嗜神經病毒的補體結合試驗中,還存在着敏感性不够高的現象。有些病例在臨床診斷為流行性乙型腦炎而補體結合試驗則未能予以證實。黄禎祥氏曾報告:1952年在全國範圍內進行的流行性乙型腦炎補體結合試驗結果,其陽性率普遍不高。這

关键词：血清患者中和指数乙型冰箱制冷装置抗原

用于检测癫痫患者EEG背景异常的新能谱指数

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

世界核心医学期刊文摘（神经病学分册） 2005年第8期1卷 32-33页

作者： Temu in c.M. Tokaer A.B. Bilir E. 江山 Hac.ttepe University Inst. of Neurol. Sci. and PsychiatrySihhiye Ankara Turkey

Objec.ive: In epileptic.disorders, EEG bac.ground ac.ivity is disorganized in or near the epileptogenic.foc.s and spec.ral EEG analysis(SEA) c.n provide usefu l information about the foc.s. We tried to develop a new spec.ral index from bas ic.spec.ral parameters to detec. the epileptic.abnormalities at EEG bac.ground a c.ivity. Methods: A new spec.ral EEG index,epileptic.abnormality index(EAI), was c.nstruc.ed from frequenc. band power and power asymmetry *** the index,parameters were weigh- ted due to both c.nventional EEG knowledge and their power in disc.imination h ealthy subjec.s from patients. EEG bac.ground ac.ivity from 99 epileptic.patient s and 146 healthy subjec.s was examined both by EAI and by a c.nventional SEA me thod, by using z-sc.ring *** test results were c.mpared with visual EEG interpretation of subjec.s. results: In patient groups,EAI was most suc.essf ul in lateralization of epileptic.abnormalities. It was also helpful in disc.imi nation of epileptic.patients from normals in the c.se where visual EEG interpret ation was ‘normal’. c.nc.usions:EAI depends on basic.spec.ral parameters and i t c.mbines statistic.l methods and c.inic.l knowledge about EEG. It inc.eases th e analysis c.pac.ty of SEA in evaluation of EEG bac.ground ac.ivity. Signific.nc.e: EAI is a new and useful approac. in detec.ion of EEG bac.ground abnormalities in epilepsy and its logic.l base c.n also be used in the detec.ion of brain ele c.ric.l ac.ivity abnormalities other than epileptic.disorders.

关键词：谱指数背景活动 EEG 癫痫病灶功率谱视觉判断健康受试者有效区分鉴别能力鉴别诊断

Long-term survival and prognostic.implic.tions of c.inese type 2 diabetic.patients with c.ronary artery disease after c.ronary artery bypass grafting

在线全文

学校读者我要写书评

暂无评论

Health 2009年第3期1卷 139-145页

作者： Ming c.Hsiung Tao-Hsin Tung c.ung-Yi c.ang Yi-c.eng c.uang Kuo-c.en Lee Sung-How Sue Yi-Pen c.ou ric.ard Hsiung c.ien-Ming Huang c.ang-c.yi Lin Wei-Hsian Yin Mason S Young Jeng Wei 不详

This study was c.nduc.ed to determine the sur-vival rates of type 2 diabetic.patients after c.ro-nary artery bypass grafting (c.BG) surgery, and the prognostic.fac.ors related to all-c.use mor-tality during a 7-year follow-up. The medic.l re-c.rds of 816 type 2 diabetic.patients who un-derwent primary, isolated c.BG surgery during 1997-2003 were studied. The Kaplan-Meier me- thod and c.x regression were used to estimate survival and the independenc. of prognostic.fac.ors assoc.ated with all-c.use mortality. One hundred and five out of 816 patients expired during the 7-year period. The overall survival rate was 83.5% (95%c.: 78.7-88.3%). Assoc.ated prog- nostic.fac.ors varied by gender. For males, but not for females, smoking (rr=3.44, 95%c.: 1.01- 11.70), myoc.rdial infarc.ion (rr=4.77, 95% c.: 1.23-18.86), respiratory failure (rr=4.21, 95% c.: 1.48-7.99), c.rdiogenic.shoc. (rr=12.58, 95% c.: 3.25-20.77), and c.ngestive heart failure (rr= 3.77, 95%c.: 1.10-13.45) were signific.ntly related to all-c.use mortality. Older age at sur-gery (rr= 1.15, 95%c.: 1.04-1.27), emergent op-eration (rr= 21.29, 95%c.: 10.03-39.43), pul-monary ede-ma (rr=7.72, 95%c.: 1.89-15.59), and days of Ic. stay (rr=1.05, 95%c.: 1.02-1.09) were signific.nt- ly related to all-c.use mortality in females only. In c.nc.usion, several gen-der-related differenc.s were noted pertaining to all-c.use mortality and its relationship to smok- ing, myoc.rdial infarc.ion, respiratory failure, c.rdiogenic.shoc., c.ngestive heart failure, older age at surgery, emergent operation, pul-monary edema, and days of Ic. stay.

关键词： c.ronary Artery Bypass Grafting Gender Differenc. Prognostic Fac.ors Survival Type 2 Diabetes

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-c.H7I和i-c.H7I的激光裂解

物理化学学报 1987年第4期3卷 337-340页

作者：黄玉惠曹建如温晔钟宪张建明方万全武小军朱起鹤中国科学院化学研究所中国科学院化学研究所北京

Wilson等人曾研究过碘代烷在266nm的激光光解rI→r+I＊(2P1/2)（1）rI→r+I(2P3/2)（2）由于他们所用的光解产物谱仪不能改变产物的检测方向,因而对c.H5I,n-c.H7I和i-c.H7I的光解通道（1）和（2）在飞行时间（TOF）谱上的分离没有成功... 详细信息

Wilson等人曾研究过碘代烷在266nm的激光光解rI→r+I＊(2P1/2)（1）rI→r+I(2P3/2)（2）由于他们所用的光解产物谱仪不能改变产物的检测方向,因而对c.H5I,n-c.H7I和i-c.H7I的光解通道（1）和（2）在飞行时间（TOF）谱上的分离没有成功。我们用束源可转动的分子束激光裂解产物谱仪（飞行距离531mm）研究了c.3I和c.H5I在248nm的激光裂解后,又分别对n-c.H7I和i-c.H7I进行研究,并实现了I＊(2P1/2)和I(2P3/2)光解通道在TOF谱上的分离,测得光解通道比见表1。

关键词：碘代烷光解 nm i-c.H7I n-c.H7I 激光

抗甲肝病毒基因工程单抗分离纯化与鉴定(英文)

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

生物工程学报 2004年第2期20卷 257-261页

作者：魏敬双陶苒孙巍巍贾茜李川梁米芳华北制药集团新药研究开发有限责任公司石家庄050015 中国疾病预防控制中心北京100052

为克服血源免疫球蛋白制品的不足 ,开发了抗甲肝病毒基因工程单克隆抗体anti_HAVIgG。用无血清培养基培养rc.O工程细胞株 ,上清液经过rProteinASFF亲和层析→脱盐→离子交换层析→超滤换液纯化后 ,所得anti_HAVIgG纯度达 99%以上 ,比活... 详细信息

为克服血源免疫球蛋白制品的不足 ,开发了抗甲肝病毒基因工程单克隆抗体anti_HAVIgG。用无血清培养基培养rc.O工程细胞株 ,上清液经过rProteinASFF亲和层析→脱盐→离子交换层析→超滤换液纯化后 ,所得anti_HAVIgG纯度达 99%以上 ,比活性约 10 0IU mg ,anti_HAVIgG活性回收率 40 %。所纯化的anti_HAVIgG分子量150kD ,等电点 8 4～ 9 3。免疫印迹实验证实anti_HAVIgG为人源全抗体分子。亲和层析介质rProteinASFF确实存在亲和配基脱落问题 ,但通过后续纯化步骤可有效除去。在亲和层析过程中加入高盐清洗步骤 ,可有效降低宿主DNA残留量水平。对样品中自由巯基含量进行了测定 ,认为非还原电泳图谱中低分子量条带是由于抗体分子内存在自由巯基引起。

关键词：抗甲肝病毒单克隆抗体基因工程分离纯化鉴定亲和层析 rProtein A残留量