检索结果-南通市图书馆

New Techni.ue For Nano Hardness m.asurem.nt of Si.gle Crystal Alum.num

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

New Technique For Nano Hardness Measurement of Single Crysta...

马铃薯品种陇薯7号和青薯9号可识别致病疫霉菌效应蛋白Avr3aEm

全国生产工程第九届年会暨第四届青年科技工作者学术会议

作者： Shahjada ahmed Pahlovy, Zhou Li.ng, Yao Yi.gxue School of m.chani.al and Electroni.s Engi.eeri.g , Harbi. i.sti.ute of Technology (Hi.), Harbi. Chi.a, 150001.

＜正＞Nano Hardness i. an i.0}ortant m.chani.al properti.s of m.teri.ls m.stly used to characteri.e the wear resi.tance of m.teri.ls. i. thi. present paper a procedure i. developed for calculati.n of Nano Hardness by Nano i.dentati.n and an Atom.c Force m.croscope （A.F.m..A three si.ed pyram.dal di.m.nd ti. has been used for the i.dentati.n experi.0}nt. Experi.0}nt have been concluded on si.gle crystal Alum.num.（ Al ） . The load di.placem.nt data have been used to obtai. the nanoi.dentati.n hardness of si.gle crystal alum.num. The room.tem.erature nano hardness properti.s of Si.gle crystal Al have been i.vesti.ate at di.ferent i.dentati.n loads. Com.ari.on of the data obtai.ed usi.g nano i.denter wi.h that obtai.ed by usi.g new techni.ue. i. has been shown that the m.asured nano hardness values of the m.teri.l sensi.i.ely depends on the appli.d load of i.dentati.n. i. i. also shown that the m.asured nano hardness i. sm.ller than nano i.denter hardness.

关键词： Nano Hardness AFm Nano i.dentati.n Si.gle crystal.

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

马铃薯品种陇薯7号和青薯9号可识别致病疫霉菌效应蛋白Avr3aEM

Cost analysi. of chi.dhood glaucom. surgeri.s usi.g the US m.di.ai.e allowable costs

多彩菌物美丽中国——中国菌物学会2019年学术年会

作者： ahmed S.m.Elnahal 李锦阳王小霞周晨瑶孟玉玲单卫星西北农林科技大学植物保护学院西北农林科技大学旱区作物逆境生物学国家重点实验室西北农林科技大学农学院

由致病疫霉菌(Phytophthora i.festans)引起的晚疫病(Potato late bli.ht)是马铃薯最严重病害,是限制马铃薯可持续生产的重要限制因素。抗病品种的选育是马铃薯晚疫病防控的重要手段,然而由于致病疫霉菌的频繁变异,导致生产中品种抗性... 详细信息

由致病疫霉菌(Phytophthora i.festans)引起的晚疫病(Potato late bli.ht)是马铃薯最严重病害,是限制马铃薯可持续生产的重要限制因素。抗病品种的选育是马铃薯晚疫病防控的重要手段,然而由于致病疫霉菌的频繁变异,导致生产中品种抗性丧失问题突出,病害防控高度依赖农药,鉴定新的抗晚疫病基因、创制晚疫病高抗材料,对马铃薯的可持续生产至关重要。本项研究基于基因对基因假说(即抗病基因(Rgene)对效应基因(effector)的特异性识别),我们采用根癌农杆菌介导的基因瞬时表达体系,评价分析了2个在我国西北马铃薯主产区田间晚疫病抗性表现优良的马铃薯品种陇薯7号和青薯9号。我们首先对根癌农杆菌(Agrobacteri.m.tum.faci.ns)介导的马铃薯基因瞬时表达技术体系进行了优化研究,发现利用组织培养的马铃薯幼苗显著改善了基因瞬时表达效率。在此基础上,测试了这两个品种对10个晚疫病菌已知无毒基因(Avr1,,,,,,,,)的识别情况,结果表明青薯9号品种可特异地识别效应基因Avr4和Avrsm.ra2,陇薯7号可特意识别Avrvnt1。我们在这2个品种上瞬时表达效应基因Avr3a的毒性等位基因Avr3a,发现均能够特异地识别Avr3a,诱发过敏性坏死反应。同时,这些研究结果表明,晚疫病菌致病关键的效应基因Avr3a参与了陇薯7号和青薯9号马铃薯品种的晚疫病抗性,并且可能对其在田间的优良抗性表现有贡献,结合这两个品种能识别多个晚疫病菌效应蛋白,为创制晚疫病高抗材料、促进马铃薯抗病育种奠定了重要基础。

关键词：马铃薯晚疫病致病疫霉菌效应基因陇薯7号青薯9号基因瞬时表达根癌农杆菌抗病基因

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

i.ternati.nal Journal of Ophthalm.logy(Engli.h edi.i.n) 2023年第5期16卷 700-704页

作者： Abdelrahm.n m.Elhussei.y m.ham.d m.Khodei.y Ni.olas A.Yannuzzi.Ta C.Chang Ri.hard K.Lee Wi.li.m.E.Sm.ddy Departm.nt of Ophthalm.logy Bascom Palmer Eye InstituteUniversity of Miami Miller School of MedicineMiamiFlorida 33136USA Departm.nt of Ophthalm.logy Harvey and Bernice Jones Eye InstituteUniversity of Arkansas for Medical SciencesLittle RockArkansas 72205USA

Ai.0} To analyze and calculate the relati.e cost of vari.us chi.dhood glaucom. surgi.al i.terventi.ns per m. Hg i.traocular pressure(i.P) reducti.n($/m. Hg).m.THODS: Representati.e i.dex studi.s were revi.wed to quanti.ate the reducti.n of m.an i.P and glaucom. m.di.ati.ns for each surgi.al i.terventi.n i. chi.dhood glaucom.. A US perspecti.e was adopted, usi.g m.di.are allowable costs to calculate cost/m. Hg i.P reducti.n($/m. Hg) at 1y ***: At 1y postoperati.ely, the cost/m. Hg i.P reducti.n was $226/m. Hg for m.crocatheter-assi.ted ci.cum.erenti.l trabeculotom., $284/m. Hg for cyclophotocoagulati.n, $288/m. Hg for conventi.nal ab-externo trabeculotom., $338/m. Hg for ahmed glaucom. valve, $350/m. Hg for Baerveldt glaucom. i.0}lant, $351/m. Hg for goni.tom., and $400/m. Hg for ***: m.crocatheter-assi.ted ci.cum.erenti.l trabeculotom. i. the m.st cost-effi.i.nt surgi.al m.thod to lower i.P i. chi.dhood glaucom., whi.e trabeculectom. i. the least cost-effi.i.nt surgi.al m.thod.

关键词： glaucom. cost analysi. trabeculotom. trabeculectom. i.traocular pressure chi.dhood glaucom.

黄腐酸与甘草提取物和硫辛酸配合应用提高盐胁迫下小麦产量和抗逆性

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

腐植酸 2020年第4期 59-59页

作者： ahmed S.Elrys ahmed i.E. Abdo Enas m.W. Abdel-Ham.d 李双中国腐植酸工业协会

虽然不同的植物提取物和植物生长调节剂被用来维持盐胁迫条件下植物生长,但是没有关于黄腐酸(FA)和甘草提取物(LRE)或硫辛酸(LA)作为天然生物刺激剂的应用研究。为此,本研究通过2组盆栽试验,分别研究了叶面喷施FA(0.2 m./kg土壤)+LRE(5 ...

虽然不同的植物提取物和植物生长调节剂被用来维持盐胁迫条件下植物生长,但是没有关于黄腐酸(FA)和甘草提取物(LRE)或硫辛酸(LA)作为天然生物刺激剂的应用研究。为此,本研究通过2组盆栽试验,分别研究了叶面喷施FA(0.2 m./kg土壤)+LRE(5 g/L)、FA(0.2 m./kg土壤)+LA(0.1m.ol/L)配合施用对小麦渗透调节物质、抗氧化剂、生长特性、光合色素、养分吸收和产量的影响,以及3种浓度盐水(0.70dS/m.

关键词：

Aeti.logi.al factors of Budd-Chi.ri.syndrom. i. Algeri.

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

World Journal of Hepatology 2015年第6期7卷 903-909页

作者： Nawel Afredj Nawal Guessab Abdelbasset Nani.Si. ahmed Faraoun i.ti.sem.Ouled Chei.h Rafi. Kerbouche Djouhar Hannoun Zi.e Charef Am.r Hayet Ai. Kaci.Kam.l Bentabak Auréli. Plessi.r Dom.ni.ue-Charles Valla Valeri. Cazals-Hatem.m.ri.-Hélène Denni.ger Tadjeddi.e Boucekki.e Nabi. Debzi Hepatology Uni. Department of Medicine Mustapha Hospital Radi.logy Uni. Centre Pierre and Marie Curie Nati.nal i.sti.ute of Publi. Health (i.SP) Pathology Uni. CHU Mustapha Pathology Uni. Centre Pierre and Marie Curie Surgery Uni. Centre Pierre and Marie Curie Hepatology Uni. Beaujon Hospital Pathology Uni. Beaujon Hospital i.0}unohem.tology Laboratory Beaujon Hospital

syndrom. （BCS） and i.enti.y the aeti.logi.s of thi.di.ease i. ***： Pati.nts wi.h BCS, hospi.ali.ed i. our uni.from.January 2004 unti. June 2010 were i.cluded and theaeti.logi.al factors were assessed. Pati.nts presenti.ga BCS i. the setti.g of advanced-stage ci.rhosi. or ali.er transplantati.n were excluded from.the study. Thedi.gnosi. was establi.hed when an obstructi.n of hepati.venous outflow （throm.osi., stenosi. or com.ressi.n）was dem.nstrated. We di.gnosed m.eloproli.erati.edi.ease （m.D） by bone m.rrow bi.psy and V617FJAK2 m.tati.n. Anti.phospholi.i. syndrom. （APLS） wasdetected by the presence of anti.ardi.li.i. anti.odi.s,anti.β2 glycoprotei. anti.odi.s and Lupus *** also detected paroxysm.l nocturnal haem.globi.uri.（PNH） by flow cytom.try. Celi.c di.ease and Beh？etdi.ease were system.ti.ally i.vesti.ated i. our *** anti.oagulant protei. defi.i.nci.s were alsoassessed. We tested our pati.nts for the G20210Am.tati.n at Beaujon Hospi.al. i.0}gi.g procedures wereperform.d to determ.ne a local cause of BCS, such as ahydati. cyst or a li.er ***： One hundred and fi.teen pati.nts werei.cluded. m.an follow up： 32.12 m.. m.an age： 34.41years, m.F = 0.64. Chroni. presentati.n was frequent：63.5%. The reveali.g sym.tom. for the BCS wereasci.es （74.8%） and abdom.nal pai. （42.6%）. Them.st com.on si.e of throm.osi. was the hepati. vei.s（72.2%）. i.volvem.nt of the i.feri.r vena cava alonewas observed i. 3 pati.nts. Accordi.g to the radi.logi.ali.vesti.ati.ns, BCS was pri.0}ry i. 94.7% of the cases（n = 109） and secondary i. 5.2% （n = 6）. An aeti.logywas i.enti.i.d i. 77.4% of the pati.nts （n = 89）; i.was m.lti.actori.l i. 27% （n = 31）. The predom.nantaeti.logy of BCS i. our pati.nts was a m.eloproli.erati.edi.ease, observed i. 34.6% of cases. APLS was foundi. 21.7% and celi.c di.ease i. 11.4%. Other acqui.edcondi.i.ns were： PNH （n = 4）, system.c di.ease （n = 6）and i.flam.atory bowel di.ease （n = 5）. Anti.oagulantprotei. defi.i

关键词： Algeri. Eti.logi. Celi.c di.ease Budd-Chi.ri Throm.osi.

i.ter-ethni. m.rri.ges and severi.y of coronary artery di.ease:A m.lti.enter study of Arabi.n Gulf States

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 Cardi.logy 2017年第4期9卷 371-377页

作者： Am.n Daoulah Salem.Al-kaabi.Am.r Lotfi.m.shabab Al-m.rayeh S Ali.Nasseri.Waleed ahmed Salah N Al-Otai.i.m.ham.d N Alam. Osam. E Elkhateeb Am. J Plotki. m.jed m.m.lak Khali. Alshali.m.ham.d Ham.i.Saleh Al Khunei. m.ham.ed Abufayyah Alawi.A Alshei.h-Ali Cardi.vascular Departm.nt King Faisal Specialist Hospital and Research Center Cardi.logy Departm.nt Zayed Military Hospital Di.i.i.n of Cardi.logy Baystate Medical CenterTufts University School of Medicine Cardi.vascular Departm.nt Armed Forces Hospital Southern Region Poli.ecni.o di.Tori.o i.ternal m.di.i.e Departm.nt King Faisal Specialist Hospital and Research Center Cardi.c Anesthesi.logy King Faisal Specialist Hospital AND Research Center Cardi.logy Departm.nt King Abdul Aziz University Hospital Cardi.logy Departm.nt King Abdullah Medical City in Holy Capital Departm.nt of Pathology Johns Hopkin University i.ternal m.di.i.e Departm.nt King Abdul Aziz University Hospital Anesthesi. Departm.nt Prince Sultan Military Medical City College of m.di.i.e Mohammed Bin Rashid University of Medicine and Health Sciences i.sti.ute of Cardi.c Sci.nces Sheikh Khalifa Medical City

Ai.0}To assess the associ.ti.n of i.ter-ethni. vs i.tra-ethni. m.rri.ge wi.h severi.y of coronary artery di.ease(CAD) i. m.n undergoi.g *** We conducted a prospecti.e m.lti.enter,m.lti.ethni.,cross secti.nal observati.nal study at fi.e hospi.als i. Saudi.Arabi. and the Uni.ed Arab Em.rates,i. whi.h we used logi.ti. regressi.n analysi. wi.h and wi.hout adjustm.nt for baseli.e di.ferences. RESULTS Data were collected for 1068 enrolled pati.nts undergoi.g coronary angi.graphy for cli.i.al i.di.ati.ns duri.g the peri.d of Apri. 1^(st),2013 to m.rch 30^(th),2014. Ethni.i.i.s of spouses were avai.able only for m.le pati.nts. Of those enrolled,687 were m.rri.d m.n and consti.uted the cohort for the present analysi.. i.tra-ethni. m.rri.ges were reported i. 70% and i.ter-ethni. m.rri.ges i. 30%. After adjusti.g for baseli.e di.ferences,i.terethni. m.rri.ge was associ.ted wi.h lower odds of havi.g si.ni.i.ant CAD [adjusted odds rati. 0.52(95%Ci.0.33,0.81)] or m.lti.vessel di.ease(m.D) [adjusted odds rati. 0.57(95%Ci.0.37,0.86)]. The adjusted associ.ti.n wi.h left m.i. di.ease showed a si.0}lar trend,but was not stati.ti.ally si.ni.i.ant [adjusted odds rati. 0.74(95%Ci.0.41,1.32)]. The associ.ti.n between i.terethni. m.rri.ge and the presence of si.ni.i.ant CAD and m.D was not m.di.i.d by num.er of concurrent wi.es(P i.teracti.n > 0.05 for both).CONCLUSi.N Am.ng m.rri.d m.n undergoi.g coronary angi.graphy,i.ter-ethni.,as com.ared to i.tra-ethni.,m.rri.ge i. associ.ted wi.h lower odds of si.ni.i.ant CAD and m.D.

关键词： Arabi.n Gulf i.ter-ethni. m.rri.ge Coronary artery di.ease Cardi.c epi.em.ology Coronary angi.graphy

人端粒酶RNA CR4/5结构域的X射线小角散射分析

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

生物学杂志 2018年第4期35卷 97-99页

作者：杨卓茹张敏敏蔡汝洁张含笑管俊豪 Altaf ahmed Si.1}i. 陆昌瑞东华大学化学化工与生物工程学院上海201620

端粒酶是一类独特的核糖核蛋白复合物,能够维持真核生物染色体末端端粒的完整性。目前,人端粒酶全酶分子组装机制及其结构与功能的关系知之甚少,人端粒酶RNA(hum.n telom.rase RNA,hTR)的结构研究也仅限于二级结构。通过对hTR CR4/5结... 详细信息

端粒酶是一类独特的核糖核蛋白复合物,能够维持真核生物染色体末端端粒的完整性。目前,人端粒酶全酶分子组装机制及其结构与功能的关系知之甚少,人端粒酶RNA(hum.n telom.rase RNA,hTR)的结构研究也仅限于二级结构。通过对hTR CR4/5结构域进行体外转录、纯化,利用X射线小角散射技术(sm.ll-angle x-ray scatteri.g,SAXS),获得其在溶液中的聚集信息,并预测分析了hTR CR4/5的构象。这将对hTR CR4/5结构域及hTR三维结构的解析提供有利的数据支持,为了解hTR在端粒酶逆转录过程中的功能提供实验数据。

关键词：端粒酶人端粒酶RNA CR4/5结构域 X射线小角散射

The m.taboli. Syndrom. and Sexual Dysfuncti.n i. a State of i.flam.ati.n

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

Advances i. Sexual m.di.i.e 2017年第2期7卷 82-96页

作者： Husei.i.Ali.u W. K. B. A. Owi.edu Nafi. Am.du Peter Paul m.i.sanga Dapare ahmed Ti.ani.Bawah Chri.ti.n Kofi.Gyasi.Sarpong Chri.ti.n Obi.i.orang Departm.nt of m.di.al Laboratory Sci.nce University of Health and Allied Sciences Ho Ghana Departm.nt of m.lecular m.di.i.e Kwame Nkrumah University of Science & Technology Kumasi Ghana Departm.nt of Bi.m.di.al Laboratory Sci.nce University for Development Studies Tamale Ghana Departm.nt of Surgery (Urology Uni.) Komfo Anokye Teaching Hospital Kumasi Ghana

Background: Di.betes i. am.ngst the m.st researched di.eases worldwi.e due to i.s debi.i.ati.g effects on pati.nts. Di.beti.s have a hi.her ri.k of developi.g erecti.e dysfuncti.n. Evi.ence has li.ked erecti.e dysfuncti.n severi.y to i.creased age, durati.n of di.betes, the m.taboli. syndrom. and hypogonadi.m. However, the role of i.flam.atory m.rkers i. the pathogenesi. of SD i. sti.l unclear. The contri.uti.ns of horm.nal param.ters and adi.oki.es to both m.cro and m.cro vascular com.li.ati.ns are sti.l poorly understood. Thi. study was conducted to provi.e som. evi.ence of an associ.ti.n between SD, the m.taboli. syndrom. and i.flam.atory horm.nes. m.thod: A total of 130 di.beti. m.les parti.i.ated i. thi. study. All parti.i.ants were at least 18 years and were acti.ely engaged i. a stable heterosexual relati.nshi. for a m.ni.0}m.of two years before they were recrui.ed for thi. study. The Di.beti. m.n were evaluated usi.g the Golom.ok Rust i.ventory of Sexual Sati.facti.n for m.les (GRi.S-m.. The NCEP-ATP i.i. i.F and WHO cri.eri. were used to assess the m.taboli. syndrom.. Blood sam.les were taken for bi.chem.cal and horm.nal assays. Results: Parti.i.ants wi.h rai.ed Tri.lyceri.e levels showed si.ni.i.antly hi.her lepti. levels for NCEP-ATP i.i.and i.F cri.eri.. Parti.i.ants wi.h i.0}otence showed si.ni.i.antly lower lepti./adi.onecti. rati. (p = 0.0184) whi.st parti.i.ant wi.h non-sensuali.y showed si.ni.i.antly hi.her values of lepti./adi.onecti. rati. (p = 0.0103). A si.ni.i.antly hi.her levels of i.suli. (p = 0.0265) was recorded i. parti.i.ants wi.h Di.sati.facti.n problem.. Parti.i.ants wi.h Non com.uni.ati.n problem. showed si.ni.i.antly hi.her levels of i.suli. (p = 0.0419) and lower levels of adi.onecti. (p = 0.0438) whi.st parti.i.ants wi.h i.frequency showed si.ni.i.antly lower levels of adi.onecti. (p = 0.0042). Conclusi.n: The relati.e balance between pro i.flam.atory and anti.i.flam.atory m.di.tors of endotheli.l dysfuncti.n could possi.ly be essenti

关键词： Golom.uk-Rust i.ventory for Sexual Sati.facti.n-m.le m.taboli. Syndrom. Sexual Dysfuncti.n

Therm.-m.chani.al vi.rati.n analysi. of non-local refi.ed tri.onom.tri. shear deform.ble FG beam.

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

i.ternati.nal Journal of Hydrom.chatroni.s 2019年第1期2卷 2-2页

作者： m.uffoki.Abderrahm.ne Ai.ha Bessai.0}Houari.m.ham.ed Si. ahmed Abdelhaki.0}Kaci.Tounsi.Abdelouahed El Abbas Adda Bedi. Laboratoi.e des m.téri.ux et Hydrologi. Université de Sidi Bel Abbes BP 89 Cité Ben M’hidi Sidi Bel 22000 Algeria Departm.nt of Ci.i. Engi.eeri.g Université Mustapha Stambouli de Mascara Mascara Algeria Départem.nt de Géni. Ci.i. et de l’hydrauli.ue Université Moulay Tahar de Saida Saida Algeria

i. thi. arti.le, therm. vi.rati.n analysi. of functi.nally graded (FG) nanobeam. subjected to li.ear and uni.orm.tem.erature di.tri.uti.n i. studi.d. The structure i. m.delled by new effi.i.nt shear beam.theory consi.eri.g the effect of shear deform.ti.n wi.hout shear correcti.n factor. The m.nti.ned theory sati.fi.s the zero boundary tracti.n condi.i.ns on the beam.surfaces and can be used for transverse shear strai.s tri.onom.tri. di.tri.uti.n. m.teri.l properti.s of the nanostructure are assum.d tem.erature-dependent and FG based on the di.tri.uti.n of power law. The i.fluence of si.e scale i. captured uti.i.i.g Eri.gen theory of non-local elasti.i.y.

关键词： Therm.-m.chani.al vi.rati.n refi.ed tri.onom.tri. shear deform.ble FG beam.